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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 406. Отображено 125.
08-12-2016 дата публикации

ENERGY ADAPTIVE COMMUNICATION FOR MEDICAL DEVICES

Номер: US20160354613A1
Принадлежит: Cardiac Pacemakers, Inc.

System and methods for energy adaptive communications between medical devices are disclosed. In one example, a medical device includes a communication module configured to deliver a plurality of pulses to tissue of a patient, where each pulse has an amount of energy. A control module operatively coupled to the communication module, may be configured to, for each delivered pulse, determine whether the delivered pulse produces an unwanted stimulation of the patient and to change the amount of energy of the plurality of pulses over time so as to identify an amount of energy that corresponds to an unwanted stimulation threshold for the pulses. The control module may then set a maximum energy value for communication pulses that is below the unwanted stimulation threshold, and may deliver communication pulses below the maximum energy value during communication with another medical device.

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08-08-2017 дата публикации

Color coded header bore identification using multiple images and lens arrangement

Номер: US0009724527B2

An implantable pulse generator includes a device housing containing pulse generator circuitry and a header connected to the device housing. The header includes a core assembly defining first and second lead bore cavities sized for receiving terminal pins of leads, first and second labels, and an outer layer. The first label is printed onto a surface of the core assembly proximate the first lead bore cavity and includes a first color. The second label is printed onto the surface of the core assembly proximate the second lead bore cavity and includes a second color different from the first color. The outer layer is overmolded over the core assembly so as to encapsulate the first and second labels and to allow access to the first and second lead bore cavities.

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23-02-2017 дата публикации

SYSTEMS AND METHODS FOR COMMUNICATION BETWEEN MEDICAL DEVICES

Номер: US20170049325A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems and methods for conducted communication are described. In one embodiment, a method for communicating with implantable medical devices may comprise sensing, by a first medical device, a noise signal delivered into a patient's body by a second medical device and delivering, by the first medical device, a cancelling signal into the patient's body. In at least some additional embodiments the method may further comprise, while delivering the cancelling signal into the patient's body, delivering a conducted communication signal into the patient's body for reception by a second medical device. 1. A method for communicating with implantable medical devices , the method comprising:sensing, by a first medical device, a noise signal delivered into a patient's body by a second medical device;delivering, by the first medical device, a cancelling signal into the patient's body; andwhile delivering the cancelling signal into the patient's body, delivering a conducted communication signal into the patient's body for reception by a second medical device.2. The method of claim 1 , wherein the cancelling signal is an inverse signal of the noise signal.3. The method of claim 1 , wherein the cancelling signal at least partially reduces the amplitude of the noise signal received by the second medical device.4. The method of claim 1 , further comprising:receiving, by the first medical device, a selection of a predetermined cancelling signal; anddelivering the selected predetermined cancelling signal into the patient's body.5. The method of claim 1 , further comprising:receiving, by the first medical device, an amplitude selection for the cancelling signal; anddelivering the cancelling signal into the patient's body with the selected amplitude.6. The method of claim 1 , further comprising delivering claim 1 , by the first medical device claim 1 , the cancelling signal into the patient's body only while delivering the conducted communication signal into the patient's body.7. The ...

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02-03-2017 дата публикации

SYSTEMS AND METHODS FOR INFARCT DETECTION

Номер: US20170056667A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, devices, and methods for determining occurrences of myocardial infarctions are disclosed. In one embodiment, a method of sensing for an occurrence of a myocardial infarction may include sensing a baseline accelerometer signal during a baseline, determining a baseline template based on one or more characteristics of the baseline accelerometer signal, and storing the baseline template in a memory. The method may further include sensing an accelerometer signal during a test period subsequent to the baseline, determining a test template based on one or more characteristics of the accelerometer signal during the test period, and comparing the baseline template with the test template, and based on the comparison, determining if a myocardial infarction occurred in the patient's heart. If it is determined that a myocardial infarction occurred in the patient's heart, the method may further include displaying an indication on a display that a myocardial infarction occurred. 1. A method of sensing for an occurrence of a myocardial infarction in a patient's heart using a leadless cardiac pacemaker that is affixed to the patient's heart , the method comprising:sensing, by the leadless cardiac pacemaker, a baseline accelerometer signal generated via an accelerometer of the leadless cardiac pacemaker during a baseline period that reflects movement of the patient's heart during the baseline period;determining a baseline template based on one or more characteristics of the baseline accelerometer signal;storing the baseline template in a memory;sensing, by the leadless cardiac pacemaker, an accelerometer signal generated via the accelerometer during a test period subsequent to the baseline period that reflects movement of the patient's heart during the test period;determining a test template based on one or more characteristics of the accelerometer signal during the test period;comparing the baseline template with the test template, and based on the comparison, determining ...

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18-05-2017 дата публикации

MEDICAL DEVICE SYSTEMS AND METHODS WITH MULTIPLE COMMUNICATION MODES

Номер: US20170136248A1
Принадлежит: CARDIAC PACEMAKERS, INC.

Medical device systems and methods with multiple communication modes. An example medical device system may include a first medical device and a second medical device communicatively coupled to the first medical device. The first medical device may be configured to communicate information to the second medical device in a first communication mode. The first medical device may further be configured to communicate information to the second medical device in a second communication mode after determining that one or more of the communication pulses captured the heart of the patient.

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27-12-2016 дата публикации

Medical device with triggered blanking period

Номер: US9526909B2

An implantable cardiac rhythm system includes a first implantable medical device configured to detect a first heartbeat from a first location, and a second implantable medical device configured to detect the first heart beat of the patient from a second location. The second implantable medical device, upon detecting the first heart beat, may communicate an indication of the detected first heart beat to the first implantable medical device, and in response, the first implantable medical device may institute a blanking period having a blanking period duration such that a T-wave of the detected first heart beat is blanked out by the first implantable medical device so as to not be interpreted as a subsequent second heart beat. In some instances, the first implantable medical device is an SICD and the second implantable medical device is a LCP.

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14-03-2017 дата публикации

Systems and methods for detecting cardiac arrhythmias

Номер: US0009592391B2

Systems and methods for coordinating detection and/or treatment of abnormal heart activity using multiple implanted devices within a patient. In one example, cardiac activity may be sensed by two or more medical device, including a leadless cardiac pacemaker. Cardiac activity sensed by one of the implanted devices may be communicated to another one of the implanted devices. Abnormal heart activity may then be determined based on the cardiac activity of both of the medical device.

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21-02-2017 дата публикации

Medical device systems and methods with multiple communication modes

Номер: US0009572991B2

Medical device systems and methods with multiple communication modes. An example medical device system may include a first medical device and a second medical device communicatively coupled to the first medical device. The first medical device may be configured to communicate information to the second medical device in a first communication mode. The first medical device may further be configured to communicate information to the second medical device in a second communication mode after determining that one or more of the communication pulses captured the heart of the patient.

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12-09-2017 дата публикации

Communications in a medical device system

Номер: US0009757570B2

Systems and methods for communicating between medical devices. In on example, a medical device comprises a communication module for communicating with an implantable leadless cardiac pacemaker through body tissue and a controller operatively coupled to the communications module. The controller may be configured to: identify intrinsic heartbeats; provide a blanking period after each occurrence of an intrinsic heartbeat; and communicate with the implantable leadless cardiac pacemaker via the communication module only during times between the blanking periods.

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05-10-2017 дата публикации

MEDICAL DEVICE SYSTEMS AND METHODS WITH MULTIPLE COMMUNICATION MODES

Номер: US20170281961A1
Принадлежит: CARDIAC PACEMAKERS, INC.

Medical device systems and methods with multiple communication modes. An example medical device system may include a first medical device and a second medical device communicatively coupled to the first medical device. The first medical device may be configured to communicate information to the second medical device in a first communication mode. The first medical device may further be configured to communicate information to the second medical device in a second communication mode after determining that one or more of the communication pulses captured the heart of the patient.

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22-06-2017 дата публикации

BIOLOGICALLY INERT COATING FOR IMPLANTABLE MEDICAL DEVICES

Номер: US20170173223A1
Принадлежит:

A coating for an implantable medical device includes a poly(monochloro-p-xylylene) coating formed on at least a portion of the implantable medical device, and a layer including at least one of poly(ethylene glycol) and a poly(ethylene glycol) derivative linked to the poly(monochloro-p-xylylene) coating by covalent bonds. 1. A coating for an implantable medical device , the coating comprising:a poly(monochloro-p-xylylene) coating formed on at least a portion of the implantable medical device; anda monolayer including at least one of poly(ethylene glycol) and a poly(ethylene glycol) derivative linked to the poly(monochloro-p-xylylene) coating by covalent bonds.2. The coating of claim 1 , wherein the monolayer including at least one of poly(ethylene glycol) and a poly(ethylene glycol) derivative is covalently bonded directly to the poly(monochloro-p-xylylene) coating.3. The coating of claim 2 , wherein the monolayer including at least one of poly(ethylene glycol) and a poly(ethylene glycol) derivative includes poly(ethylene glycol).4. The coating of claim 2 , wherein the monolayer including at least one of poly(ethylene glycol) and a poly(ethylene glycol) derivative includes methoxy poly(ethylene glycol).5. The coating of claim 1 , wherein an average molecular weight of the at least one of the poly(ethylene glycol) and a poly(ethylene glycol) derivative is between about 200 grams per mole and about 20 claim 1 ,000 grams per mole.6. The coating of claim 1 , further including a bifunctional linker disposed between the poly(monochloro-p-xylylene) coating and the monolayer including at least one of poly(ethylene glycol) and a poly(ethylene glycol) derivative claim 1 , wherein the bifunctional linker is covalently bonded to the poly(monochloro-p-xylylene) coating and to the monolayer including at least one of poly(ethylene glycol) and a poly(ethylene glycol) derivative.7. The coating of claim 5 , wherein the monolayer including at least one of poly(ethylene glycol) and a ...

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02-03-2017 дата публикации

SYSTEM AND METHOD FOR DETECTING TAMPONADE

Номер: US20170056671A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, methods, and devices for determining occurrences of a tamponade condition are disclosed. One exemplary method includes monitoring an accelerometer signal of a leadless cardiac pacemaker attached to a heart wall, determining if a tamponade condition of the patient's heart is indicated based at least in part on the monitored accelerometer signal, and in response to determining that the tamponade condition is indicated, providing a notification of the tamponade condition for use by a physician to take corrective action. 1. A method for detecting a tamponade condition of a patient's heart after attachment of a leadless cardiac pacemaker to the patient's heart , the leadless cardiac pacemaker having an accelerometer that produces an accelerometer signal , the method comprising:monitoring the accelerometer signal of the leadless cardiac pacemaker;determining if a tamponade condition of the patient's heart is indicated based at least in part on the monitored accelerometer signal; andin response to determining that the tamponade condition is indicated, providing a notification of the tamponade condition for use by a physician to take corrective action.2. The method of claim 1 , wherein the determining step comprises:identifying a characteristic of the accelerometer signal;determining if the identified characteristic diminishes over time; anddetermining that the tamponade condition is indicated if the identified characteristic of the of the accelerometer signal diminishes over time.3. The method of claim 2 , wherein the identified characteristic comprises a peak amplitude of the accelerometer signal.4. The method of wherein the identified characteristic comprises a peak amplitude of an integral of the accelerometer signal.5. The method of claim 1 , wherein the accelerometer signal represents one axis of a multi-axis accelerometer.6. The method of claim 1 , wherein the accelerometer signal represents a summed signal of all axes of a multi-axis accelerometer.7. The ...

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02-03-2017 дата публикации

SYSTEMS AND METHODS FOR DETECTING DEVICE DISLODGMENT

Номер: US20170056649A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, methods, and devices for detecting dislodgment of an implantable device are disclosed. In one example, a method for determining a dislodgement status may comprise collecting, by the implantable device operating in a first operating mode, a first number of accelerometer signal samples during a cardiac cycle of the heart and using the first number of accelerometer signal samples to determine a first patient parameter and collecting, by the implantable device operating in a second operating mode, a second number of accelerometer signal samples during a cardiac cycle of the heart and using the second number of accelerometer signal samples to determine a dislodgment status of the implantable device, wherein the first number is smaller than the second number. In some further embodiments, the method may further include providing a notification of the dislodgment status to a remote device that is remote from the implantable medical device. 1. A method for determining a dislodgement status of an implantable device at an implant site on the heart of a patient , the implantable device having an accelerometer for providing an accelerometer signal , the method comprising:collecting, by the implantable device operating in a first operating mode, a first number of accelerometer signal samples during a cardiac cycle of the heart and using the first number of accelerometer signal samples to determine a first patient parameter;collecting, by the implantable device operating in a second operating mode, a second number of accelerometer signal samples during a cardiac cycle of the heart and using the second number of accelerometer signal samples to determine a dislodgment status of the implantable device, wherein the first number is smaller than the second number; andproviding a notification of the dislodgment status to a remote device that is remote from the implantable medical device.2. The method of claim 1 , wherein the implantable device is a leadless cardiac pacemaker.3. ...

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25-05-2017 дата публикации

LABELED IMPLANTABLE MEDICAL DEVICES

Номер: US20170143979A1
Принадлежит:

In general, techniques are described for labeling an implantable medical device (IMD). In one example, an IMD can include a housing including electronic circuitry. The IMD can include a header coupled to the housing and includes a core. The core can define a bore and include a first metal label positioned adjacent to the at least one bore. The IMD includes a lead assembly including at least one lead having a distal end and a proximal end, the at least one lead including a second metal label, the distal end including at least one electrode and the proximal end received within the bore. 1. An implantable medical device , comprising:a housing including electronic circuitry; a first bore extending from the first side wall toward the second side wall;', 'a first connector block opening in communication with the first bore;, 'a header coupled to the housing and including a core having a first face, a second face opposite the first face, a first side wall, and a second side wall opposite the first side wall, the core includinga first connector block positioned within the first connector block opening, wherein the first connector block includes a first identifier; anda first contact wire extending from the housing, the first contact wire including the first identifier and configured to couple to the first connector block.2. The implantable medical device of claim 1 , wherein the core further includes:a first receiving cavity extending from the first side wall toward the second side wall, the first receiving cavity positioned adjacent to the first bore; anda first window extending from the first face to the receiving cavity such that the first window is in communication with the receiving cavity.3. The implantable medical device of claim 2 , further including:a first metal label positioned within the first receiving cavity adjacent to the first bore, wherein the first metal label includes the first identifier.4. The implantable medical device of claim 3 , wherein the first ...

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15-09-2016 дата публикации

ELECTRICAL CONNECTOR AND METHOD FOR MANUFACTURING AN ELECTRICAL CONNECTOR

Номер: US20160268706A1
Принадлежит:

An electrical connector for detachably connecting an electrical lead to an implantable medical device includes a conductive housing and a plurality of spring contacts. The conductive housing extends from a proximal end to a distal end. The conductive housing has an interior surface forming a hollow cylinder. The plurality of spring contacts projects from the interior surface of the conductive housing and toward the proximal end. The plurality of spring contacts is at least partially contained within the conductive housing and configured to form an electrical connection to an electrical lead inserted within the conductive housing. The conductive housing and the plurality of spring contacts are integrally formed by an additive manufacturing process such that the electrical connector is a unitary structure.

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04-07-2017 дата публикации

Method and apparatus for communicating between medical devices

Номер: US0009694189B2

Systems and methods for communicating between medical devices. In one example, a method for communicating between a plurality of medical devices in a medical device system comprises, with a first medical device, communicating a first message to a second medical device. The method further comprises, with the second medical device, receiving the first message, wherein the first message comprises a plurality of communication pulses. A first set of the plurality of communication pulses represent a synchronization portion of the first message. A second set of the plurality of communication pulses represent a relative device address portion of the first message. A third set of the plurality of communication pulses represent a command portion of the first message. A fourth set of the plurality of communication pulses represent a payload portion of the first message.

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23-02-2017 дата публикации

SYSTEMS AND METHODS FOR COMMUNICATION BETWEEN MEDICAL DEVICES

Номер: US20170054516A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems and methods for conducted communication are described. In one embodiment, a method of communicating with a medical device implanted within a patient comprises receiving, at a medical device via electrodes connected to the patient, a conducted communication signal, wherein the conducted communication signal comprises a signal component and a noise component. The method may further comprise adjusting, by the medical device, a receive threshold based at least in part on an amplitude of the received conducted communication signal so as to reduce an amplitude of the noise component of the conducted communication signal. 1. A method of communicating with a medical device implanted within a patient comprising:receiving, at a medical device via electrodes connected to the patient, a conducted communication signal, wherein the conducted communication signal comprises a signal component and a noise component; andadjusting, by the medical device, a receive threshold based at least in part on an amplitude of the received conducted communication signal,wherein adjusting the receive threshold at least partially reduces an amplitude of the noise component of the conducted communication signal.2. The method of claim 1 , wherein adjusting the receive threshold based at least in part on the amplitude of the received conducted communication signal comprises:counting, by the medical device, a number of pulses in the conducted communication signal having an amplitude greater than the receive threshold the during a communication window;determining, by the medical device, whether the counted number of pulses exceeds a pulse count threshold; andafter determining the counted number of pulses exceeds the pulse count threshold, increasing, by the medical device, the receive threshold.3. The method of claim 2 , further comprising increasing the receive threshold by a predetermined amount.4. The method of claim 2 , wherein the pulse count threshold represents a maximum number of pulses ...

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24-10-2017 дата публикации

Wound dressing garment

Номер: US0009795516B2
Принадлежит: ROAR CONSULTANTS

A wound dressing garment is provided. The wound dressing garment includes a wearable garment including a portion having a hole configured to receive a wound dressing therein in combination with the wound dressing. The wound dressing includes a border connecting the wound dressing to the wearable garment where the border extends around the perimeter of the hole to locate the wound dressing therein. The wound dressing may include one or more additional layers including a hydrogel layer. A method for treating wound or preventing bed sores using the wound dressing garment is also provided.

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08-09-2016 дата публикации

SYSTEMS AND METHODS FOR TREATING CARDIAC ARRHYTHMIAS

Номер: US20160256694A1
Принадлежит:

Systems and methods for rate-adaptive pacing are disclosed. In one illustrative embodiment, a medical device for delivering electrical stimulation to a heart may include a housing configured to be implanted on the heart or within a chamber of the heart, one or more electrodes connected to the housing, and a controller disposed within the housing. The controller may be configured to sense a first signal and determine a respiration rate based at least in part on the sensed first signal. In at least some embodiments, the controller may be further configured to adjust a rate of delivery of electrical stimulation by the medical device based at least in part on the determined respiration rate.

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02-03-2017 дата публикации

SYSTEMS AND METHODS FOR CARDIO-RESPIRATORY PACING

Номер: US20170056669A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, devices, and methods for pacing a heart of a patient are disclosed. In some embodiments, a method for pacing a patient's heart may include determining a posture of the patient and determining if the determined posture corresponds to a predetermined sleep posture. If the determined posture correspond to the predetermined sleep posture, the method may further comprise determining a respiration phase of the patient and pacing the patient's heart at a pacing rate that is modulated based on the determined respiration phase of the patient. If the determined posture does not correspond to the predetermined sleep posture, the method may pace the patient's heart at a pacing rate that is not dependent on the respiration phase of the patient.

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01-09-2016 дата публикации

CONNECTOR BLOCKS FOR A HEADER OF AN IMPLANTABLE DEVICE

Номер: US20160250482A1
Принадлежит:

An apparatus includes an implantable housing, a header mounted to the implantable housing and including a connector block cavity, and a connector block located within the connector block cavity, the connector block including a plastic housing portion, a coil spring, and a metallic termination member connected to the coil spring and exposed outside the plastic housing portion.

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08-08-2017 дата публикации

Medical device systems and methods with multiple communication modes

Номер: US0009724522B2

Medical device systems and methods with multiple communication modes. An example medical device system may include a first medical device and a second medical device communicatively coupled to the first medical device. The first medical device may be configured to communicate information to the second medical device in a first communication mode. The first medical device may further be configured to communicate information to the second medical device in a second communication mode after determining that one or more of the communication pulses captured the heart of the patient.

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02-03-2017 дата публикации

CARDIAC PACING WITH GOVERNOR

Номер: US20170056668A1
Принадлежит: Cardiac Pacemakers, Inc.

A leadless cardiac pacemaker includes a housing and two or more electrodes secured relative to the housing. A controller is configured to receive electrical signals from the two or more electrodes indicative of a heartbeat of the patient's heart and determine a first measure of cardiac load based at least in part on a delay between the Q or R feature and the T feature for the heartbeat. An accelerometer is configured to sense an activity level of the patient and the controller is configured to determine a second measure of cardiac load based at least in part on the activity level of the patient. A pacing rate is based at least in part upon the first measure of cardiac load, with the second measure of cardiac load used as a governor to the determined pacing rate. 1. A leadless cardiac pacemaker (LCP) configured to sense and pace a patient's heart , the LCP comprising:a housing;two or more electrodes secured relative to the housing and configured to receive electrical signals emanating from the patient's heart;a controller coupled to the two or more electrodes, the controller configured to receive electrical signals from the two or more electrodes indicative of a heartbeat of the patient's heart, the received electrical signals including one or more of a Q, an R, and an S feature, as well as a T feature of a QRST complex, the controller configured to determine a first measure of cardiac load based at least in part on a delay between the Q or R feature and the T feature for the heart beat;an accelerometer configured to sense an activity level of the patient, the controller configured to determine a second measure of cardiac load based at least in part on the activity level of the patient;the controller further configured to determine a pacing rate based at least in part upon the first measure of cardiac load and to pace the patient's heart in accordance with the determined pacing rate; andthe controller further configured to utilize the second measure of cardiac load ...

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21-02-2017 дата публикации

Labeled implantable medical devices

Номер: US0009572994B2

In general, techniques are described for labeling an implantable medical device (IMD). In one example, an IMD can include a housing including electronic circuitry. The IMD can include a header coupled to the housing and includes a core. The core can define a bore and include a first metal label positioned adjacent to the at least one bore. The IMD includes a lead assembly including at least one lead having a distal end and a proximal end, the at least one lead including a second metal label, the distal end including at least one electrode and the proximal end received within the bore.

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08-06-2017 дата публикации

SYSTEM FOR ASTHMA EVENT DETECTION AND NOTIFICATION

Номер: US20170161453A1
Принадлежит:

A system, including a sensor configured to ambulatorily sense a parameter and a status unit configured to determine a change in asthma status of a patient based on the parameter. 1. A system , comprising:a sensor configured to ambulatorily sense a parameter that is one or more of predictive of an asthma exacerbation event and useful in determining an increased risk of an asthma exacerbation event for a patient; anda status unit configured to determine a change in asthma status of the patient by at least one of predicting the asthma exacerbation event and determining the increased risk of the asthma exacerbation event based on the parameter.2. The system of claim 1 , wherein the sensor has been implanted in the patient to ambulatorily sense the parameter.3. The system of claim 1 , comprising an implantable device claim 1 , wherein the sensor is situated in the implantable device.4. The system of claim 3 , wherein the status unit is situated in the implantable device.5. The system of claim 1 , comprising an external device claim 1 , wherein the status unit is situated in the external device.6. The system of claim 1 , comprising an external device configured to provide at least one of a display and an alarm to provide information about the change in the asthma status.7. The system of claim 1 , comprising a therapy unit configured to provide asthma therapy to the patient in response to the change in the asthma status of the patient.8. The system of claim 7 , wherein the therapy unit includes a drug delivery unit that has been implanted in the patient and is configured to provide drug therapy to the patient by at least one of automatically responding to the change of the asthma status and providing the drug therapy in response to direction from one or more of the patient and a health care provider.9. The system of claim 1 , wherein the sensor is configured to sense at least one physiological parameter of the patient.10. The system of claim 1 , wherein the status unit is ...

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07-11-2017 дата публикации

Communication between a plurality of medical devices using time delays between communication pulses to distinguish between symbols

Номер: US0009808631B2

Systems and methods for communicating between medical devices. In one example, an implantable medical device comprising may comprise one or more electrodes and a controller coupled to the electrodes. The controller may be configured to receive a first communication pulse at a first communication pulse time and a second communication pulse at a second communication pulse time via the one or more electrodes. The controller may further be configured to identify one of three or more symbols based at least in part on the time difference between the first communication pulse time and the second communication pulse time.

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22-06-2017 дата публикации

CONDUCTED COMMUNICATION IN A MEDICAL DEVICE SYSTEM

Номер: US20170173346A1
Принадлежит: CARDIAC PACEMAKERS, INC.

An implantable medical device for implantation into a patient may include a housing, a pulse generation circuit disposed at least partially within the housing, a plurality of electrodes electrically coupled to the pulse generation circuit, the plurality of electrodes being exposed external to the housing, and a controller operatively coupled to the pulse generation circuit. The controller may be configured to command the pulse generation circuit to deliver a phasic conducted communication pulse via at least two of the plurality of electrodes. Additionally, the phasic conducted communication pulse may comprise a first phase having a first polarity followed by a second phase having an opposite second polarity, wherein the second phase may have a duration of less than 60 microseconds, and wherein the first phase having may have a duration of between five percent and eighty percent of the duration of the second phase. 1. An implantable medical device for implantation into a patient , comprising:a housing;a pulse generation circuit disposed at least partially within the housing;a plurality of electrodes electrically coupled to the pulse generation circuit, the plurality of electrodes being exposed external to the housing; and command the pulse generation circuit to deliver a phasic conducted communication pulse via at least two of the plurality of electrodes;', 'wherein the phasic conducted communication pulse comprises a first phase having a first polarity followed by a second phase having an opposite second polarity;', 'the second phase having a duration of less than 60 microseconds; and', 'the first phase having a duration of between five percent and eighty percent of the duration of the second phase., 'a controller operatively coupled to the pulse generation circuit, the controller configured to2. The implantable medical device of claim 1 , wherein the first phase has a first phase amplitude claim 1 , with the absolute value of the first phase amplitude between 1 and ...

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22-09-2016 дата публикации

COMMUNICATIONS IN A MEDICAL DEVICE SYSTEM WITH LINK QUALITY ASSESSMENT

Номер: US20160271406A1
Принадлежит: CARDIAC PACEMAKERS, INC.

Methods and devices for testing and configuring implantable medical device systems. A first medical device and a second medical device communicate with one another using test signals configured to provide data related to the quality of the communication signal to facilitate optimization of the communication approach. Some methods may be performed during surgery to implant one of the medical devices to ensure adequate communication availability.

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24-08-2017 дата публикации

DISPLAY OF TEMPORALLY ALIGNED HEART INFORMATION FROM SEPARATE IMPLANTABLE MEDICAL DEVICES ON AN EXTRACORPOREAL DISPLAY

Номер: US20170238830A1
Принадлежит: CARDIAC PACEMAKERS, INC.

A cardiac rhythm management system includes a first implantable device such as a defibrillator and a second implantable device such as a leadless cardiac pacemaker. A programmer is configured to receive and display heart data emanating from the implantable defibrillator and from the leadless cardiac pacemaker. The heart data emanating from the leadless cardiac pacemaker is displayed in temporal alignment with the heart data emanating from the implantable defibrillator.

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02-03-2017 дата публикации

TEMPORAL CONFIGURATION OF A MOTION SENSOR IN AN IMPLANTABLE MEDICAL DEVICE

Номер: US20170056665A1
Принадлежит: CARDIAC PACEMAKERS, INC.

Methods and devices for configuring the use of a motion sensor in an implantable cardiac device. The electrical signals of the patient's heart are observed and may be correlated to the physical motion of the heart as detected by the motion sensor of the implantable cardiac device in order to facilitate temporal configuration of motion sensor data collection that avoids detecting cardiac motion in favor of overall motion of the patient. 1. A method of operating an implantable device comprising: contemporaneously collecting a set of data points from the motion sensor and from a cardiac electrical signal;', 'correlating time periods within the set of data points from the motion sensor to cardiac activity reflected by the cardiac electrical signal; and', 'configuring the ID to capture data from the motion sensor by reference to specific repeatable elements of the cardiac electrical signal;, 'initializing an implantable device (ID) for disposition within the heart of a patient, the ID comprising a motion sensor for detecting movement of the patient, the initializing step being performed byusing the ID as configured in the initializing step to capture cardiac signals of the patient and motion signals for the patient.2. The method of further comprising;using the motion signals to determine an activity level of the patient; andsetting and implementing a pacing rate for the patient using the determined activity level.3. The method of wherein the step of configuring the ID to capture data from the motion sensor is performed by:determining when intrinsic mechanical motion of the heart is detected by the motion sensor relative to electrical signals of the heart; andsetting a data capture period for the motion sensor relative to a specified electrical signal of the heart to avoid capturing the intrinsic mechanical motion of the heart with the motion sensor.4. The method of wherein the step of configuring the ID to capture data from the motion sensor includes determining a delay ...

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19-09-2017 дата публикации

Energy adaptive communication for medical devices

Номер: US9764148B2

System and methods for energy adaptive communications between medical devices are disclosed. In one example, a medical device includes a communication module configured to deliver a plurality of pulses to tissue of a patient, where each pulse has an amount of energy. A control module operatively coupled to the communication module, may be configured to, for each delivered pulse, determine whether the delivered pulse produces an unwanted stimulation of the patient and to change the amount of energy of the plurality of pulses over time so as to identify an amount of energy that corresponds to an unwanted stimulation threshold for the pulses. The control module may then set a maximum energy value for communication pulses that is below the unwanted stimulation threshold, and may deliver communication pulses below the maximum energy value during communication with another medical device.

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13-04-2017 дата публикации

DEVICES AND METHODS FOR ADJUSTING PACING RATES IN AN IMPLANTABLE MEDICAL DEVICE

Номер: US20170100594A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, devices, and methods are disclosed for limiting the duration of elevated pacing rates in an implantable medical device. An illustrative device may include a housing, a plurality of electrodes connected to the housing, and a controller within the housing and connected to the electrodes. The controller may deliver pacing pulses to the electrodes at a base pacing rate, detect a measure of elevated metabolic demand which may vary over time, deliver pacing pulses at an elevated pacing rate based on the measure of elevated metabolic demand. The controller may change a heart stress tracking value (HSTV) when the pacing rate is elevated and may be changed faster during times of relatively higher elevated pacing rates than times of relatively lower elevated pacing rates. The elevated pacing rate may be reduced back toward the base pacing rate after the HSTV crossed a predetermined heart stress threshold. 1. A Leadless Cardiac Pacemaker (LCP) comprising:an outer housing;a plurality of exposed electrodes connected relative to the outer housing; and deliver pacing pulses via the plurality of exposed electrodes at a base pacing rate;', 'detect a measure of metabolic demand, wherein the measure of metabolic demand varies over time;', 'deliver pacing pulses at an elevated pacing rate relative to the base pacing rate after determining an elevated metabolic demand with respect to a base measure of metabolic demand, wherein the elevated pacing rate varies with time and is dependent on the detected measure of metabolic demand;', 'change a heart stress tracking value during times when pacing pulses are delivered at the elevated pacing rate, wherein the heart stress tracking value is changed faster during times when higher elevated pacing rates are delivered relative to times when lower elevated pacing rates are delivered; and', 'determine if the heart stress tracking value crosses a predetermined heart stress threshold, and if so, reduce the elevated pacing rate back toward ...

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05-01-2017 дата публикации

IMPLANTABLE DEVICE HEADER AND METHOD

Номер: US20170001021A1
Принадлежит:

Systems and methods for implantable medical devices and headers are described. In an example, an implantable medical device includes a device container including an electronic module within the device container. A modular header core includes a header core module including at least one bore hole configured to receive a lead, an antenna attachment module coupled to the header core, and an antenna engaged with the antenna attachment module. The antenna attachment module is configured to locate the antenna in a selected position with respect to the header core module. 120-. (canceled)21. An implantable medical device , comprising:a device container including an electronic module within the device container; a header core module including at least one bore hole configured to receive a lead; and', 'an antenna attachment module coupled to the header core;, 'a modular header core, includingan antenna engaged with the antenna attachment module, the antenna attachment module configured to locate the antenna with respect to the header core module; anda header shell disposed around the modular header core and the antenna.22. The implantable medical device of claim 21 , wherein the antenna attachment module includes a first dielectric constant and the header core module includes a second dielectric constant claim 21 , the first dielectric constant different from the second dielectric constant.23. The implantable medical device of claim 22 , wherein the first dielectric constant is less than the second dielectric constant.24. The implantable medical device of claim 21 , wherein a first mating surface of the antenna attachment module and a second mating surface of the header core module engage to form a connection to couple and maintain the position of the antenna attachment module with respect to the header core module while the header shell is disposed.25. The implantable medical device of claim 24 , wherein the connection is a tab-and-slot configuration.26. The implantable ...

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13-06-2017 дата публикации

Display of temporally aligned heart information from separate implantable medical devices on an extracorporeal display

Номер: US0009675811B2

A cardiac rhythm management system includes a first implantable device such as a defibrillator and a second implantable device such as a leadless cardiac pacemaker. A programmer is configured to receive and display heart data emanating from the implantable defibrillator and from the leadless cardiac pacemaker. The heart data emanating from the leadless cardiac pacemaker is displayed in temporal alignment with the heart data emanating from the implantable defibrillator.

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22-09-2016 дата публикации

COMMUNICATIONS IN A MEDICAL DEVICE SYSTEM WITH TEMPORAL OPTIMIZATION

Номер: US20160277097A1
Принадлежит: CARDIAC PACEMAKERS, INC.

Systems and methods for managing communication strategies between implanted medical devices. Methods include temporal optimization relative to one or more identified conditions in the body. A selected characteristic, such as a signal representative or linked to a biological function, is assessed to determine its likely impact on communication capabilities, and one or more communication strategies may be developed to optimize intra-body communication.

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02-03-2017 дата публикации

SYSTEMS AND METHODS FOR BEHAVIORALLY RESPONSIVE SIGNAL DETECTION AND THERAPY DELIVERY

Номер: US20170056664A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, devices, and methods for adjusting functionality of an implantable medical device based on posture are disclosed. In some instances, a method for operating a leadless cardiac pacemaker implanted into a patient, where the patient has two or more predefined behavioral states, may include detecting a change in the behavioral state of the patient, and in response, changing a sampling rate of a sensor signal generated by a sensor of the leadless cardiac pacemaker. In some embodiments, the method may further include using the sampled sensor signal to determine an updated pacing rate of the leadless cardiac pacemaker and providing pacing to the patient at the updated pacing rate.

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26-12-2017 дата публикации

Systems and methods for communication between medical devices

Номер: US0009853743B2

Systems and methods for conducted communication are described. In one embodiment, a method of communicating with a medical device implanted within a patient comprises receiving, at a medical device via electrodes connected to the patient, a conducted communication signal, wherein the conducted communication signal comprises a signal component and a noise component. The method may further comprise adjusting, by the medical device, a receive threshold based at least in part on an amplitude of the received conducted communication signal so as to reduce an amplitude of the noise component of the conducted communication signal.

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12-10-2017 дата публикации

MULTI-SITE CRT CAPTURE VERIFICATION

Номер: US20170291022A1
Принадлежит:

An apparatus comprises a cardiac signal sensing circuit configured for coupling electrically to a plurality of electrodes and to sense intrinsic cardiac activation at three or more locations within a subject's body using the electrodes; a stimulus circuit configured for coupling to the plurality of electrodes; a signal processing circuit electrically coupled to the cardiac signal sensing circuit and configured to determine a baseline intrinsic activation vector according to the sensed intrinsic cardiac activation; and a control circuit electrically coupled to the cardiac signal sensing circuit and stimulus circuit and configured to: initiate delivery of electrical pacing therapy using initial pacing parameters determined according to the baseline intrinsic activation vector; initiate sensing of a paced activation vector; and adjust one or more pacing therapy parameters according to the paced activation vector.

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02-03-2017 дата публикации

SPATIAL CONFIGURATION OF A MOTION SENSOR IN AN IMPLANTABLE MEDICAL DEVICE

Номер: US20170056666A1
Принадлежит: CARDIAC PACEMAKERS, INC.

Implantable devices having motion sensors. In some examples the a configuration is generated for the implantable device to use the motion sensor in an energy preserving mode in which one or more axis of detection of the motion sensor is disabled or ignored. In some examples the motion sensor outputs along multiple axes are analyzed to determine which axes best correspond to certain patient parameters including patient motion/activity and/or cardiac contractility. In other examples the output of the motion sensor is observed across patient movements or postures to develop conversion parameters to determine a patient standard frame of reference relative to outputs of the motion sensor of an implanted device. 1. A method of operation in an implantable device , the implantable device comprising a motion sensor , the method comprising:monitoring an output from a motion sensor along at least first and second axes;identifying one of the first and second axes as providing less information than one or more other axes; andat least temporarily disabling the identified axis of the motion sensor.2. The method of wherein the implantable device is a leadless pacemaker configured for implantation within the heart of a patient.3. The method of wherein the motion sensor has three axes.4. The method of wherein the at least temporarily disabling step comprises disabling the identified axis for a predetermined period of time and the method comprises:re-enabling the temporarily disabled axis; andrepeating the steps of monitoring, identifying and at least temporarily disabling steps.5. The method of further comprising:while the identified axis is disabled, monitoring the output of the motion sensor on one or more remaining axes;observing a change in output of the one or more remaining axes; andre-enabling the identified axis.6. The method of further comprising using an output of the motion sensor from at least one axis which is not at least temporarily disabled to monitor activity of the ...

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20-09-2016 дата публикации

Energy adaptive communication for medical devices

Номер: US0009446253B2

System and methods for energy adaptive communications between medical devices are disclosed. In one example, a medical device includes a communication module configured to deliver a plurality of pulses to tissue of a patient, where each pulse has an amount of energy. A control module operatively coupled to the communication module, may be configured to, for each delivered pulse, determine whether the delivered pulse produces an unwanted stimulation of the patient and to change the amount of energy of the plurality of pulses over time so as to identify an amount of energy that corresponds to an unwanted stimulation threshold for the pulses. The control module may then set a maximum energy value for communication pulses that is below the unwanted stimulation threshold, and may deliver communication pulses below the maximum energy value during communication with another medical device.

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05-10-2017 дата публикации

IMPLANTABLE MEDICAL DEVICE WITH RECHARGEABLE BATTERY

Номер: US20170281955A1
Принадлежит: CARDIAC PACEMAKERS, INC.

Implantable medical devices such as leadless cardiac pacemakers may include a rechargeable power source. In some cases, a system may include an implanted device including a receiving antenna and an external transmitter that transmits radiofrequency energy that may be captured by the receiving antenna and then be converted into electrical energy that may be used to recharge a rechargeable power source. Accordingly, since the rechargeable power source does not have to maintain sufficient energy stores for the expected life of the implanted device, the power source itself and thus the implanted device, may be made smaller while still meeting device longevity expectations.

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16-03-2017 дата публикации

ARRHYTHMIA DETECTION AND CONFIRMATION

Номер: US20170072202A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, methods, and devices for detecting or confirming fibrillation are discussed. In one example, a method for detecting a cardiac arrhythmia of a patients' heart comprises receiving, by a leadless cardiac pacemaker fixed in the patients' heart, an indication from a remote device that a cardiac arrhythmia is detected, monitoring by the leadless cardiac pacemaker a signal generated by a sensor that is located within the patients' heart, and based at least in part on the monitored signal, confirming whether a cardiac arrhythmia is occurring or not. In some embodiments, the method may further comprise, if a cardiac arrhythmia is confirmed, delivering a therapy to treat the cardiac arrhythmia. 1. A method for detecting a cardiac arrhythmia of a patient's heart , comprising:receiving, by a leadless cardiac pacemaker fixed in the patient's heart, an indication from a remote device that a cardiac arrhythmia is detected;monitoring, by the leadless cardiac pacemaker, a signal generated by a sensor that is located within the patients' heart;based at least in part on the monitored signal, confirming whether a cardiac arrhythmia is occurring or not; andif a cardiac arrhythmia is confirmed, delivering a therapy to treat the cardiac arrhythmia.2. The method of claim 1 , further comprising:transmitting the monitored signal from the leadless cardiac pacemaker to the remote device; andthe remote device using the transmitted monitored signal to confirm whether a cardiac arrhythmia is occurring or not.3. The method of claim 1 , wherein the leadless cardiac pacemaker confirms whether a cardiac arrhythmia is occurring or not claim 1 , and if a cardiac arrhythmia is confirmed claim 1 , transmits a confirmation message to the remote device.4. The method of claim 1 , wherein the remote device delivers the therapy to treat the cardiac arrhythmia.5. The method of claim 1 , wherein the sensor comprises an accelerometer claim 1 , and the accelerometer is part of the leadless cardiac ...

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30-08-2016 дата публикации

Leadless cardiac pacemaker having a sensor with a lower power mode

Номер: US0009427589B2

A leadless cardiac pacemaker (LCP) configured to sense and pace a patient's heart includes a sensor configured to sense a parameter related to cardiac contractility of the patient's heart and a power management unit that is operatively coupled to the sensor. The power management unit is configured to place the sensor in a higher power sense mode during times when sensing the parameter related to cardiac contractility is desired and to place the sensor in a lower power mode during times when sensing the parameter related to cardiac contractility is not desired.

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22-11-2012 дата публикации

INTEGRATED CARDIAC RHYTHM MANAGEMENT SYSTEM WITH HEART VALVE

Номер: US20120296382A1
Принадлежит:

Systems and methods using a heart valve and an implantable medical device, such as for event detection and optimization of cardiac output. The cardiac management system includes a heart valve, having a physiological sensor. The physiological sensor is adapted to measure at least one of an intrinsic electrical cardiac parameter, a hemodynamic parameter or the like. The system further includes an implantable electronics unit, such as a cardiac rhythm management unit, coupled to the physiological sensor of the heart valve to receive physiological information. The electronics unit is adapted to use the received physiological information to control delivery of an electrical output to the subject. 1a heart valve, including a physiological sensor, the heart valve adapted for implantation into a subject; andan implantable electronics unit, coupled to the physiological sensor to receive physiological information, the electronics unit adapted to use the received physiological information to control delivery of an electrical output to the subject.. An apparatus comprising: This application is a Continuation of U.S. application Ser. No. 12/645,934, filed on Dec. 23, 2009, which is a Continuation of U.S. application Ser. No. 11/466,974, filed on Aug. 24, 2006, now issued as U.S. Pat. No. 7,643,879, which is herein incorporated by reference.Event detection and therapy with biomedical devices and in particular event detection and therapy using sensors coupled with a heart valve.The body includes a plurality of organs and systems that perform functions necessary for maintaining the health of a person. The circulatory system is one example of a system that includes the heart organ as its centerpiece. Other body systems include the respiratory system, digestive system, endocrine system, nervous system or the like. The organs of these systems provide a variety of physiological parameters useful for observing the normal and abnormal behaviors of the body. Observation of these ...

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18-04-2013 дата публикации

WOUND DRESSING GARMENT

Номер: US20130096478A1
Принадлежит: ROAR CONSULTANTS

A wound dressing garment is provided. The wound dressing garment includes a wearable garment including a portion having a hole configured to receive a wound dressing therein in combination with the wound dressing. The wound dressing includes a border connecting the wound dressing to the wearable garment where the border extends around the perimeter of the hole to locate the wound dressing therein. The wound dressing may include one or more additional layers including a hydrogel layer. A method for treating wound or preventing bed sores using the wound dressing garment is also provided. 1. A wound dressing garment comprising:a wearable garment including a portion having a hole configured to receive a wound dressing therein; andthe wound dressing, the wound dressing including a border connecting the wound dressing to the wearable garment, the border extending around a perimeter of the hole to locate the wound dressing therein.2. The wound dressing garment according to claim 1 , wherein the border has a central opening and the wound dressing includes a hydrogel layer located at the central opening.3. The wound dressing garment according to claim 2 , wherein the wound dressing includes a mesh layer disposed below the hydrogel layer claim 2 , the mesh layer configured to allow dispersal of the hydrogel layer.4. The wound dressing garment according to claim 3 , wherein the wound dressing includes an adhesive layer to secure the mesh layer to the hydrogel layer and the border.5. The wound dressing garment according to claim 4 , wherein the wound dressing includes at least one transparent layer above the hydrogel layer.6. The wound dressing garment according to claim 5 , wherein the at least one transparent layer is formed of one of a hypoallergenic film claim 5 , an oxygen-permeable film and a vapor-permeable film.7. The wound dressing garment according to claim 6 , wherein the at least one transparent layer includes a first transparent layer formed of a hypoallergenic ...

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13-06-2013 дата публикации

IMPLANTABLE DEVICE HEADER AND METHOD

Номер: US20130150915A1
Принадлежит:

Systems and methods for implantable medical devices and headers are described. In an example, an implantable medical device includes a device container including an electronic module within the device container. A header core includes an electronic connection feature electrically coupled to the electronic module within the device container, the electronic connection feature configured to engage with a lead. In some examples, the header core includes a tag holder configured to locate an identification tag in a selected position with respect to the header core. In some examples, the header core includes an antenna attachment feature configured to locate an antenna in a selected position with respect to the header core. A header shell is disposed around the header core and attached to the device container. 1. An implantable medical device comprising:a device container including an electronic module within the device container;a header core including an electronic connection feature electrically coupled to the electronic module within the device container, the electronic connection feature configured to engage with a lead, the header core including a tag holder;an identification tag engaged with the tag holder, the tag holder configured to locate the identification tag in a selected position with respect to the header core; anda molded header shell disposed around the header core and attached to the device container.2. The implantable medical device of claim 1 , wherein the identification tag is configured to be x-ray readable.3. The implantable medical device of claim 1 , wherein the identification tag includes tungsten.4. The implantable medical device of claim 1 , wherein the tag holder includes a slot in the header core configured to engage with a portion of the identification tag.5. The implantable medical device of claim 1 , wherein the tag holder includes:a first slot in the header core configured to engage with a portion of the identification tag; anda second ...

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13-06-2013 дата публикации

IMPLANTABLE DEVICE HEADER AND METHOD

Номер: US20130150916A1
Принадлежит:

Systems and methods for implantable medical devices and headers are described. In an example, an implantable medical device includes a device container including an electronic module within the device container. A modular header core includes a first core module including a first bore hole portion of a first bore hole, the first bore hole portion configured to couple a first electrical component with the electronic module. A second core module includes a second bore hole portion of a second bore hole different than the first bore hole, the second bore hole portion configured to couple a second electrical component with the electronic module. The first core module is detachably engaged with the second core module. A header shell is disposed around the modular header core and attached to the device container. 1. An implantable medical device comprising:a device container including an electronic module within the device container; a first core module including a first bore hole portion of a first bore hole, the first bore hole portion configured to couple a first electrical component with the electronic module; and', 'a second core module including a second bore hole portion of a second bore hole different than the first bore hole, the second bore hole portion configured to couple a second electrical component with the electronic module, wherein the first core module is detachably engaged with the second core module; and, 'a modular header core includinga header shell disposed around the modular header core and attached to the device container.2. The implantable medical device of claim 1 , wherein the first core module includes a first electronic connection feature electrically coupled to the electronic module within the device container claim 1 , the first electronic connection feature configured to engage with the first electrical component.3. The implantable medical device of claim 2 , wherein the second core module includes a second electronic connection feature ...

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13-06-2013 дата публикации

IMPLANTABLE DEVICE HEADER AND METHOD

Номер: US20130150917A1
Принадлежит:

Systems and methods for implantable medical devices and headers are described. In an example, an implantable medical device includes a device container including an electronic module within the device container. A header is coupled to the device container. The header includes a header core including a conductive member electrically coupled to the electronic module within the device container. A header shell is disposed around the header core and attached to the device container. An antenna is coupled to the header core and electrically coupled to the electronic module. A first portion of the header is proximate the antenna. The first portion includes a first dielectric constant that is lower than a second dielectric constant of a second portion of the header. 1. An implantable medical device comprising:a device container including an electronic module within the device container; a header core including a conductive member electrically coupled to the electronic module within the device container; and', 'a header shell disposed around the header core and attached to the device container; and, 'a header coupled to the device container, the header includingan antenna coupled to the header core and electrically coupled to the electronic module, wherein a first portion of the header is proximate the antenna, the first portion including a first dielectric constant that is lower than a second dielectric constant of a second portion of the header.2. The implantable medical device of claim 1 , wherein the first portion of the header is disposed between the antenna and the conductive member.3. The implantable medical device of claim 1 , wherein the first portion of the header is disposed between the antenna and the device container.4. The implantable medical device of claim 1 , wherein the first portion of the header includes an antenna attachment feature.5. The implantable medical device of claim 4 , wherein the antenna attachment feature is engaged with the header core.6. ...

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13-06-2013 дата публикации

IMPLANTABLE DEVICE HEADER AND METHOD

Номер: US20130150937A1
Принадлежит:

Systems and methods for implantable medical devices and headers are described. In an example, an implantable medical device includes a device container including an electronic module within the device container. A header core includes a bore hole portion and at least two electronic connection features disposed within the bore hole portion. The bore hole portion includes at least one cavity configured to allow placement of at least one of the electronic connection features within the bore hole portion. The at least two electronic connection features are electrically coupled to the electronic module within the device container. The header core is configured to allow location of the at least two electronic connection features in a selected configuration within the bore hole portion. A header shell is disposed around the header core and attached to the device container. 1. An implantable medical device comprising:a device container including an electronic module within the device container;a header core including a bore hole portion and at least two electronic connection features disposed within the bore hole portion, the bore hole portion including at least one cavity configured to allow placement of at least one of the electronic connection features within the bore hole portion, the at least two electronic connection features being electrically coupled to the electronic module within the device container, the at least two electronic connection features being configured to engage with a lead disposed within the bore hole portion, wherein the header core is configured to allow location of the at least two electronic connection features in a selected configuration within the bore hole portion; anda header shell disposed around the header core and attached to the device container.2. The implantable medical device of claim 1 , wherein the header shell is molded around the header core.3. The implantable medical device of claim 1 , wherein at least one of the electronic ...

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11-07-2013 дата публикации

IMPLANTABLE DEVICE HEADER AND METHOD

Номер: US20130178911A1
Принадлежит:

Systems and methods for implantable medical devices and headers are described. In an example, an implantable medical device header is provided with an epoxy material having properties that produce a high strength resistance to side load failure. Examples are shown that include a surface texturing at an interface between the header and a metallic container portion. 1. An implantable device , comprising:a metallic device container;a textured surface on a portion of the metallic device container, having an area root mean square value between 3.05 μm and 10.2 μm; anda thermoset polymer header forming an interface with at least a portion of the textured surface.2. The implantable device of claim 1 , wherein the textured surface includes a laser treated surface including a number of substantially spherical particles.3. The implantable device of claim 1 , wherein the thermoset polymer is an epoxy.4. The implantable device of claim 2 , wherein the epoxy header is cast in place.5. The implantable device of claim 2 , wherein the epoxy header is injection molded in place.6. The implantable device of claim 1 , wherein the textured surface has an area root mean square value between 3.81 μm and 8.89 μm.7. The implantable device of claim 1 , wherein the textured surface has an area root mean square value between 3.30 μm and 3.81 μm.8. The implantable device of claim 2 , wherein the epoxy header has a Shore D hardness between approximately 80 and 90.9. The implantable device of claim 2 , wherein a volume fraction of resin to hardener in the epoxy is approximately 2 to 1.10. The implantable device of claim 9 , wherein the laser treated surface includes a periodic pattern.11. The implantable device of claim 9 , wherein the laser treated surface includes at least one pattern of ridges and troughs.12. The implantable device of claim 2 , wherein the epoxy header is substantially transparent.13. The implantable device of claim 2 , wherein the epoxy header has a glass transition of ...

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18-07-2013 дата публикации

RATE ADAPTIVE CARDIAC PACING SYSTEMS AND METHODS

Номер: US20130184776A1
Принадлежит: Cardiac Pacemakers, Inc.

The invention relates to cardiac rhythm management systems, and more particularly, to rate adaptive cardiac pacing systems and methods. In an embodiment, the invention includes a cardiac rhythm management device. The device can include a pulse generator for generating electrical pulses to be delivered to a heart at a pacing rate, a processor in communication with the pulse generator, and one or more sensors for sensing pulmonary function and cardiac function. The processor can be configured to increase the pacing rate if the pulmonary function is increasing with time and the cardiac function is not decreasing with time, maintain the pacing rate if the pulmonary function is increasing with time and the cardiac function is decreasing with time, and decrease the pacing rate if the respiratory function is decreasing with time. 120-. (canceled)21. A cardiac rhythm management device comprising:a pulse generator for generating electrical pulses to be delivered to a heart at a pacing rate;a processor in communication with the pulse generator;one or more sensors for sensing pulmonary function and cardiac function, the one or more sensors in communication with the processor; andthe processor configured to increase the pacing rate if the pulmonary function is increasing with time and the cardiac function is not decreasing with time; maintain the pacing rate if the pulmonary function is increasing with time and the cardiac function is decreasing with time; and decrease the pacing rate if the respiratory function is decreasing with time.22. The cardiac rhythm management device of claim 21 , the one or more sensors comprising a single sensor sensing both pulmonary function and cardiac function.23. The cardiac rhythm management device of claim 21 , the one or more sensors comprising a first sensor for sensing pulmonary function and a second sensor for sensing cardiac function.24. The cardiac rhythm management device of claim 21 , pulmonary function comprising minute ventilation.25 ...

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02-01-2020 дата публикации

IMPLANTABLE MEDICAL DEVICE WITH GYROSCOPE

Номер: US20200001092A1
Принадлежит: Cardiac Pacemakers, Inc.

An implantable medical device (IMD) that includes a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, and a gyroscope secured relative to the housing. The IMD may include circuitry in the housing in communication with the first electrode, the second electrode, and the gyroscope. The circuitry may be configured to determine and store a plurality of torsion data measurements, from which a representation of a twist profile may be determined. 1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart , the LCP comprising:a housing;an electrode secured relative to the housing and exposed to an environment outside of the housing;a gyroscope disposed relative to the housing; ["pace the patient's heart using the electrode;", "determine a twisting profile of the patient's heart over one or more cardiac cycles based at least in part on data obtained from the gyroscope;", "determine a status of an acute and/or chronic condition of the patient's heart based at least in part on the determined twisting profile; and", "communicate the status of the acute and/or chronic condition of the patient's heart to an external device."], 'circuitry in the housing in communication with the electrode and the gyroscope, the circuitry configured to2. The LCP of claim 1 , wherein the acute and/or chronic condition of the patient's heart comprises a systolic and/or diastolic heart failure condition.3. The LCP of claim 1 , wherein the acute and/or chronic condition of the patient's heart comprises an aortic stenosis condition.4. The LCP of claim 1 , wherein the acute and/or chronic condition of the patient's heart comprises a mitral regurgitation condition.5. The LCP of claim 1 , wherein the acute and/or chronic condition of the patient's heart comprises a transmural infarction condition.6. The LCP of claim 1 , wherein the acute and/or chronic condition of the patient's heart comprises a ...

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03-01-2019 дата публикации

FILTER CARTRIDGE ASSEMBLIES

Номер: US20190001078A1
Принадлежит: CONMED CORPORATION

A filter cartridge for surgical gas delivery systems includes a filter housing configured to be seated in a filter cartridge interface of a surgical gas delivery system. A first filter element is seated in a first end portion of the filter housing. A second filter element is seated in a second end portion of the filter housing opposite the first end portion. A third filter element is seated in the filter housing between the first and second filter elements. The third filter element can include an activated carbon material, such as an activated carbon disc. 1. A filter cartridge for surgical gas delivery systems comprising:a filter housing configured to be seated in a filter cartridge interface of a surgical gas delivery system;a first filter element seated in a first end portion of the filter housing;a second filter element seated in a second end portion of the filter housing opposite the first end portion; anda third filter element seated in the filter housing between the first and second filter elements.2. A filter cartridge as recited in claim 1 , wherein the third filter element includes an activated carbon material.3. A filter cartridge as recited in claim 2 , wherein the third filter element includes an activated carbon disc.4. A filter cartridge as recited in claim 1 , wherein each of the first and second filter elements includes a pleated filter material.5. A filter cartridge as recited in claim 1 , further comprising a separator wall within the filter housing between the first filter element and the second filter element.6. A filter cartridge as recited in claim 5 , wherein the separator wall includes a gas aperture therethrough claim 5 , wherein a plenum is defined between the separator wall and the third filter element claim 5 , wherein the gas aperture is configured to pressurize the plenum with gas for utilization of a larger cross-sectional area of the third filter element than that of the gas aperture.7. A filter cartridge as recited in claim 6 , ...

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14-01-2016 дата публикации

POLYMERIC FEED-THRU FOR CHRONIC IMPLANTABLE DEVICES

Номер: US20160008607A1
Принадлежит:

A method of making a feed-thru connector assembly includes inserting a conductor within an opening within a housing of a pulse generator and dispensing a sealant in a gap between the conductor and portions of the housing adjacent to the conductor that define the opening of the housing and curing the sealant to form a seal comprising a polyisobutylene cross-linked network. 1. An implantable system comprising:a pulse generator including a housing, electronics within the housing, and an opening;a lead attached to the pulse generator; a conductor; and', 'a seal disposed within a gap between the conductor and portions of the housing adjacent to the conductor that define the opening of the housing, wherein the seal comprises a polyisobutylene cross-linked network., 'a feed-thru connector assembly mounted on the pulse generator and positioned at least partially within the opening, the feed-thru connector assembly comprising2. The implantable system of claim 1 , wherein the conductor comprises one of titanium claim 1 , platinum iridium (PtIr) claim 1 , palladium iridium (PdIr) claim 1 , stainless steel SS316 claim 1 , MP35N claim 1 , silver and gold alloys claim 1 , and mixtures thereof.3. The implantable system of claim 1 , wherein at least a portion of a surface of the conductor includes a roughened surface.4. The implantable system of claim 1 , wherein the tensile strength between the conductor and the seal is greater than 1 claim 1 ,500 psi.5. The implantable system of claim 1 , wherein the seal has a leak test rate less than about 4×10atm cc/sec (or Pa m/s) when subjected to helium gas at a pressure of about 0.4 Pa.6. The implantable system of claim 1 , wherein the dielectric strength of the seal is greater than 1000 volts per mil.7. The implantable system of claim 1 , wherein the bulk resistivity of the seal is greater than 1×10ohm-m.8. The implantable system of claim 1 , wherein the surface resistivity of the seal is greater than 1×10ohm-m.9. A feed-thru connector ...

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14-01-2016 дата публикации

SYSTEMS AND METHODS FOR TREATING CARDIAC ARRHYTHMIAS

Номер: US20160008615A1
Принадлежит:

Systems and methods for treating cardiac arrhythmias. One example medical device system for delivering electrical stimulation therapy to a heart of a patient may comprise a leadless cardiac pacemaker (LCP) implanted within a heart of a patient and configured to determine occurrences of cardiac arrhythmias, a medical device configured to determine occurrences of cardiac arrhythmias and to deliver defibrillation shock therapy to the patient, wherein the LCP and the medical device are spaced from one another and communicatively coupled, and wherein after the LCP determines an occurrence of a cardiac arrhythmia, the LCP is configured to modify the defibrillation shock therapy of the medical device. 1. A medical device system for delivering electrical stimulation therapy to a heart of a patient , the system comprising:a leadless cardiac pacemaker (LCP) implanted within a heart of a patient and configured to determine occurrences of cardiac arrhythmias;a medical device configured to determine occurrences of cardiac arrhythmias and to deliver defibrillation shock therapy to the patient, wherein the LCP and the medical device are spaced from one another and communicatively coupled, andwherein after the LCP determines an occurrence of a cardiac arrhythmia, the LCP is configured to modify the defibrillation shock therapy of the medical device.2. The system of claim 1 , wherein the LCP determines an occurrence of a cardiac arrhythmia based claim 1 , at least in part claim 1 , on one or more received physiological signals or indications of one or more physiological conditions of the patient.3. The system of claim 1 , wherein the defibrillation shock therapy comprises claim 1 , after the medical device determines an occurrence of a cardiac arrhythmia:charging a capacitor to a predefined level; andafter charging the capacitor to the predefined level, delivering one or more defibrillation pulses to the heart of the patient using at least some energy stored in the capacitor.4. The ...

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11-01-2018 дата публикации

SYSTEMS AND METHODS TO DETERMINE SURROGATES OF BLOOD PRESSURE

Номер: US20180008206A1
Принадлежит:

Embodiments of the present disclosure relate to systems and methods for determining a subject's blood pressure using one or more implantable medical devices (IMDs). In an embodiment, a medical system comprises: at least one implantable medical device configured to sense signals associated with heart sounds of a subject and a processing unit communicatively coupled to the at least one implantable medical device. The processing unit is configured to: receive heart sound signals corresponding to the signals associated with the heart sounds; and calculate a surrogate of the subject's blood pressure using at least one heart sound signal of the received heart sound signals. 1. A medical system comprising:at least one implantable medical device configured to sense signals associated with heart sounds of a subject; receive heart sound signals corresponding to the signals associated with the heart sounds; and', "calculate a surrogate of the subject's blood pressure using at least one heart sound signal of the received heart sound signals."], 'a processing unit communicatively coupled to the at least one implantable medical device, wherein the processing unit is configured to2. The medical system of claim 1 , wherein the at least one implantable medical device senses signals associated with heart sounds of a subject using at least one of an acoustic sensor and a motion sensor.3. The medical system of claim 1 , wherein the processing unit is configured to calculate the surrogate of the subject's blood pressure by calculating an amplitude of the at least one heart sound claim 1 , the at least one heart sound signal corresponding to an S1 heart sound of the subject.4. The medical system of claim 3 , wherein the processing unit is configured to determine the subject's blood pressure based on the calculated surrogate by applying claim 3 , to the amplitude of the at least one heart sound signal claim 3 , at least one of a scaling factor claim 3 , an exponential factor and an offset ...

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11-01-2018 дата публикации

LEADLESS PACEMAKER USING PRESSURE MEASUREMENTS FOR PACING CAPTURE VERIFICATION

Номер: US20180008831A1
Принадлежит: Cardiac Pacemakers, Inc.

Methods, devices, and systems for performing pacing capture verification in implantable medical devices such as a leadless cardiac pacemakers using a pressure signal. An example medical device includes a pressure sensor and is configured to monitor for an evoked capture response using the pressure sensor following pace delivery. Various factors of the pressure waveform may be used including the use of threshold, templating, and slope, as well as comparing cross-domain sensed events including using a fiducial point from the pressure signal for comparison to an acoustic, electrical, or motion event, or the use of data obtained from a second device which may be implanted, wearable, or external to the patient. 1. An implantable medical device in the form of a cardiac pacemaker , comprising:at least first and second electrodes for at least one of delivering therapy or sensing electrical signals;a pressure sensor for sensing intracardiac pressure;operational circuitry coupled to the electrodes and the pressure sensor; anda housing sized and adapted for placement in or on the heart of a patient, the housing containing at least the operational circuitry;wherein the operational circuitry is configured to perform a pressure based capture verification process including the following:deliver an electrical pacing stimulus to the heart of a patient using the at least first and second electrodes;monitor for an evoked capture response indicating the electrical pacing stimulus was captured using the pressure sensor; andif the evoked capture response is detected, conclude that the electrical pacing stimulus captured at least a portion of the patient's heart; andif the evoked capture response is not detected, conclude that the electrical pacing stimulus did not capture the patient's heart.2. The medical device of wherein the operational circuitry is configured to monitor for an evoked capture response by obtaining a signal received with the pressure sensor over a period of time ...

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25-01-2018 дата публикации

ESTIMATE DIASTOLIC PRESSURE

Номер: US20180020930A1
Принадлежит:

This document discusses, among other things, systems and methods to estimate an arterial diastolic pressure of a patient using ventricular pressure information of a heart of the patient and heart sound information of the heart of the patient, such as a timing of at least one of a first heart sound (S) or a second heat sound (S), in certain examples, adjusted by a respective correction factor. 1. A system , comprising:a pressure signal input circuit configured to receive ventricular pressure information of a heart of a patient;a heart sound signal input circuit configured to receive heart sound information of the heart of the patient; andan arterial diastolic pressure circuit configured to estimate an arterial diastolic pressure of the patient using the ventricular pressure information and the heart sound information of the heart.212. The system of claim 1 , wherein the heart sound information includes a timing of at least one of a first heart sound (S) or a second heart sound (S) claim 1 , and{'b': 1', '2, 'wherein the arterial diastolic pressure circuit is configured to estimate the arterial diastolic pressure of the patient using the ventricular pressure information and the timing of at least one of the S or the S.'}3. The system of claim 2 , wherein the ventricular pressure information of the heart of the patient includes a ventricular pressure signal of a ventricle of the heart over a first time interval claim 2 ,{'b': '2', 'wherein the heart sound information includes a timing of the S in the first time interval, and'}{'b': '2', 'wherein the arterial diastolic pressure circuit is configured to estimate the arterial diastolic pressure of the patient using a measurement of the ventricular pressure signal at the time of the S.'}4. The system of claim 2 , wherein the ventricular pressure information of the heart of the patient includes a ventricular pressure signal of a ventricle of the heart over a first time interval claim 2 ,{'b': '2', 'wherein the heart sound ...

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25-01-2018 дата публикации

PRESSURE SENSOR TO DETECT BODY SOUNDS

Номер: US20180020983A1
Принадлежит:

This document discusses, among other things, using a pressure sensor to detect body sound information of a patient, such as cardiac murmurs, respiratory sounds, etc. 1. A system , comprising:a pressure sensor configured to receive physiologic information from a patient; and a low-frequency data processing circuit configured to detect pressure information from the patient using the physiologic information received by the pressure sensor when the control signal is in a first state; and', 'a high-frequency data processing circuit configured to detect body sound information from the patient using the physiologic information received by the pressure sensor when the control signal is in a second state., 'a control circuit, coupled to the pressure sensor, configured to receive information from the pressure sensor, and to provide a control signal to the pressure sensor, wherein the control circuit includes2. The system of claim 1 , including a leadless cardiac pacemaker (LCP) claim 1 , wherein the LCP includes the pressure sensor having a deformable element claim 1 , 'an anchor to secure the LCP in an atrium or a ventricle of a heart of the patient; and', 'wherein the LCP includesfirst and second electrodes configured to detect electrical information of the heart.3. The system of claim 1 , wherein the LCP includes:an anchor configured to secure the LCP to an interior wall of a left ventricle of a heart; andfirst and second electrodes configured to detect electrical information of the heart.4. The system of claim 3 , wherein the control circuit is configured to provide the control signal in response to the detected electrical information.5. The system of claim 1 , wherein the control circuit is configured to provide the control signal in response to the received physiologic information from the pressure sensor.6. The system of claim 5 , wherein the control circuit is configured to detect diastole in the patient using information from the pressure sensor claim 5 , andwherein ...

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25-01-2018 дата публикации

METHOD AND SYSTEM FOR DETERMINING PACE TIMING IN A LEADLESS CARDIAC PACEMAKER SYSTEM

Номер: US20180021567A1
Принадлежит: Cardiac Pacemakers, Inc.

A leadless cardiac pacemaker (LCP) is configured to sense cardiac activity and to pace a patient's heart and is disposable within a ventricle of the patient's heart. The LCP may include a housing, a first electrode and a second electrode that are secured relative to the housing and are spaced apart. A controller is disposed within the housing and is operably coupled to the first electrode and the second electrode such that the controller is capable of receiving, via the first electrode and the second electrode, electrical cardiac signals of the heart. The LCP may include a pressure sensor and/or an accelerometer. The controller may determine a pace time for a cardiac cycle based at least in part upon a signal from the pressure sensor. 1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart , the LCP disposable within a ventricle of the patient's heart , the LCP comprising:a housing;a first electrode secured relative to the housing;a second electrode secured relative to the housing, the second electrode spaced from the first electrode;a controller disposed within the housing and operably coupled to the first electrode and the second electrode;a pressure sensor disposed relative to the housing and operably coupled to the controller, the controller configured to receive a pressure signal from the pressure sensor;the controller configured to determine a pace time for a cardiac cycle for delivering a ventricle pacing pulse to the ventricle of the patient's heart, the controller determining the pace time based at least in part on the received pressure signal; andthe controller configured to generate and deliver a ventricle pacing pulse at the pace time.2. The LCP of claim 1 , further comprising:an accelerometer secured relative to the housing and operably coupled to the controller, the controller configured to receive an accelerometer signal from the accelerometer;wherein the controller is configured to determine the pace ...

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25-01-2018 дата публикации

CARDIAC VOLUME SENSING VIA AN IMPLANTABLE MEDICAL DEVICE IN SUPPORT OF CARDIAC RESYNCHRONIZATION THERAPY

Номер: US20180021570A1
Принадлежит: Cardiac Pacemakers, Inc.

An Implantable Medical Device (IMD) configured to be implantable in a ventricle of a patient's heart may include a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, the second electrode spaced from the first electrode, and circuitry in the housing operatively coupled to the first electrode and the second electrode. The circuitry may be configured to identify a measure of impedance between the first electrode and the second electrode at each of a plurality of times during a cardiac cycle. Each measure of impedance may represent a measure of volume of the ventricle in which the IMD is implanted. In some cases, the circuitry may generate a pacing pulse, the timing of which is based at least in part on the measure of volume of the ventricle at two or more of the plurality of times during the cardiac cycle. 1. A leadless cardiac pacemaker (LCP) configured to be implantable in a ventricle of a patient's heart , the LCP comprising:a housing;a first electrode secured relative to the housing and exposed to the environment outside of the housing;a second electrode secured relative to the housing and exposed to the environment outside of the housing, the second electrode spaced from the first electrode;circuitry in the housing operatively coupled to the first electrode and the second electrode, the circuitry configured to identify a measure of impedance between the first electrode and the second electrode at each of a plurality of times during a cardiac cycle, wherein each measure of impedance represents a measure of volume of the ventricle in which the LCP is implanted; andthe circuitry generating a pacing pulse, the timing of which is based at least in part on the measure of volume of the ventricle at two or more of the plurality of times during the cardiac cycle.2. The LCP of claim 1 , wherein the housing includes a rigid body and a tail claim 1 , and wherein the second electrode is secured to the tail.3. The LCP ...

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25-01-2018 дата публикации

METHOD AND SYSTEM FOR UTILIZING AN ATRIAL CONTRACTION TIMING FIDUCIAL IN A LEADLESS CARDIAC PACEMAKER SYSTEM

Номер: US20180021581A1
Принадлежит: Cardiac Pacemakers, Inc.

A leadless cardiac pacemaker (LCP) is configured to sense cardiac activity and to pace a patient's heart and is disposable within a ventricle of the patient's heart. The LCP may include a housing, a first electrode and a second electrode that are secured relative to the housing and are spaced apart. A controller is disposed within the housing and is operably coupled to the first electrode and the second electrode such that the controller is capable of receiving, via the first electrode and the second electrode, electrical cardiac signals of the heart. The LCP may include a pressure sensor and/or an accelerometer. The controller may determine an atrial contraction timing fiducial based at least in part upon two or more of a signal from the pressure sensor, a signal from the accelerometer representing, and an electrical cardiac signal. 1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart , the LCP disposable within a ventricle of the patient's heart , the LCP comprising:a housing;a first electrode secured relative to the housing;a second electrode secured relative to the housing, the second electrode spaced from the first electrode;a controller disposed within the housing and operably coupled to the first electrode and the second electrode such that the controller is capable of receiving, via the first electrode and the second electrode, electrical cardiac signals of the heart;a pressure sensor disposed relative to the housing and operably coupled to the controller, the controller configured to receive signals from the pressure sensor;an accelerometer disposed relative to the housing and operably coupled to the controller, the controller configured to receive signals from the accelerometer;the controller configured to determine an atrial contraction timing fiducial based at least in part upon two or more of a signal received from the pressure sensor, a signal received from the accelerometer representing a heart sound ...

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25-01-2018 дата публикации

METHOD AND SYSTEM FOR DETERMINING A CARDIAC CYCLE PACE TIME IN ACCORDANCE WITH METABOLIC DEMAND IN A LEADLESS CARDIAC PACEMAKER SYSTEM

Номер: US20180021582A1
Принадлежит: Cardiac Pacemakers, Inc.

A leadless cardiac pacemaker (LCP) is configured to sense cardiac activity and to pace a patient's heart and is disposable within a ventricle of the patient's heart. The LCP MAY include a housing, a first electrode and a second electrode that are secured relative to the housing and are spaced apart. A controller is disposed within the housing and is operably coupled to the first electrode and the second electrode such that the controller is capable of receiving, via the first electrode and the second electrode, electrical cardiac signals of the heart. The LCP may include a pressure sensor and/or an accelerometer. The controller may determine a pace time within a cardiac cycle based at least in part upon an indication of metabolic demand. 1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart , the LCP disposable within a ventricle of the patient's heart , the LCP comprising:a housing;a first electrode secured relative to the housing;a second electrode secured relative to the housing, the second electrode spaced from the first electrode;a controller disposed within the housing and operably coupled to the first electrode and the second electrode such that the controller is capable of receiving an electrical cardiac signal from the patient's heart via the first electrode and the second electrode;a first sensor disposed relative to the housing and operably coupled to the controller, the controller configured to receive a first sensor signal from the first sensor, wherein the first sensor signal is responsive to an atrial contraction of the patient's heart;a second sensor disposed relative to the housing and operably coupled to the controller, the controller configured to receive a second sensor signal from the second sensor, wherein the second sensor signal is responsive to an atrial contraction of the patient's heart;the controller configured to determine a ventricle pace time for delivering a ventricle pacing pulse to ...

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25-01-2018 дата публикации

LEADLESS CARDIAC PACEMAKER FOR GENERATING CARDIAC PRESSURE VOLUME LOOP

Номер: US20180021584A1
Принадлежит: Cardiac Pacemakers, Inc.

A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart. The LCP may include a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, and a pressure sensor secured relative to the housing and coupled to the environment outside of the housing. The LCP may further include circuitry in the housing in communication with the first electrode, the second electrode, and the pressure sensor. The circuitry may be configured to determine and store a plurality of impedance-pressure data pairs, from which a representation of a pressure-volume loop may be determined. 1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart , the LCP comprising:a housing;a first electrode secured relative to the housing and exposed to the environment outside of the housing;a second electrode secured relative to the housing and exposed to the environment outside of the housing, the second electrode is spaced from the first electrode;a pressure sensor secured relative to the housing and is coupled to the environment outside of the housing; andcircuitry in the housing in communication with the first electrode, the second electrode, and the pressure sensor, the circuitry configured to determine, at a first time during a cardiac cycle, a first impedance between the first electrode and the second electrode and also a corresponding first pressure via the pressure sensor, resulting in a first impedance-pressure data pair.2. The LCP of claim 1 , wherein the circuitry is configured to wirelessly transmit the first impedance-pressure data pair to a remote device.3. The LCP of claim 1 , wherein the circuitry is configured to determine claim 1 , at a second time during the cardiac cycle claim 1 , a second impedance between the first electrode and the second electrode and also a second pressure via the pressure sensor claim 1 , resulting in a second impedance- ...

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25-01-2018 дата публикации

LEADLESS MEDICAL SYSTEM FOR QUANTIFYING VENTRICLE TO VENTRICLE DYSSYNCHRONY

Номер: US20180021585A1
Принадлежит: Cardiac Pacemakers, Inc.

A medical system includes two or more leadless implantable medical devices, each implanted in a different ventricle of the heart and each including a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, and a pressure sensor secured relative to the housing. Each of the leadless implantable medical devices may further include circuitry in the housing operatively coupled to the corresponding first electrode, second electrode, and pressure sensor. The medical system may be configured to determine and store a plurality of pressure-pressure data pairs and/or impedance-impedance data pairs generated by the two or more leadless implantable medical devices, from which a representation of a pressure-pressure loop or volume-volume loop may be determined, to facilitate cardiac resynchronization therapy (CRT), patient health status monitoring, and/or the management of a non-CRT cardiac therapy. 1. A leadless cardiac pacemaker (LCP) system configured to sense cardiac activity and to pace a patient's heart , the system comprising: a housing;', 'a first electrode secured relative to the housing and exposed to the environment outside of the housing;', 'a second electrode secured relative to the housing and exposed to the environment outside of the housing, the second electrode is spaced from the first electrode;', 'a pressure sensor secured relative to the housing and is coupled to the environment outside of the housing; and', 'circuitry in the housing in communication with the first electrode, the second electrode, and the pressure sensor, the circuitry configured to determine at a first time during a cardiac cycle a first pressure via the pressure sensor;, 'a first leadless cardiac pacemaker (LCP), the first LCP comprising a housing;', 'a first electrode secured relative to the housing and exposed to the environment outside of the housing;', 'a second electrode secured relative to the housing and exposed to the ...

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11-02-2016 дата публикации

Medical device systems and methods with multiple communication modes

Номер: US20160038742A1
Принадлежит: Cardiac Pacemakers Inc

Medical device systems and methods with multiple communication modes. An example medical device system may include a first medical device and a second medical device communicatively coupled to the first medical device. The first medical device may be configured to communicate information to the second medical device in a first communication mode. The first medical device may further be configured to communicate information to the second medical device in a second communication mode after determining that one or more of the communication pulses captured the heart of the patient.

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11-02-2016 дата публикации

Communications in a medical device system

Номер: US20160038746A1
Принадлежит: Cardiac Pacemakers Inc

Systems and methods for communicating between medical devices. In one example, an implantable medical device comprising may comprise one or more electrodes and a controller coupled to the electrodes. The controller may be configured to receive a first communication pulse at a first communication pulse time and a second communication pulse at a second communication pulse time via the one or more electrodes. The controller may further be configured to identify one of three or more symbols based at least in part on the time difference between the first communication pulse time and the second communication pulse time.

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11-02-2016 дата публикации

Communications in a medical device system

Номер: US20160038747A1
Принадлежит: Cardiac Pacemakers Inc

Systems and methods for communicating between medical devices. In on example, a medical device comprises a communication module for communicating with an implantable leadless cardiac pacemaker through body tissue and a controller operatively coupled to the communications module. The controller may be configured to: identify intrinsic heartbeats; provide a blanking period after each occurrence of an intrinsic heartbeat; and communicate with the implantable leadless cardiac pacemaker via the communication module only during times between the blanking periods.

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11-02-2016 дата публикации

COMMUNICATIONS IN A MEDICAL DEVICE SYSTEM

Номер: US20160038748A1
Принадлежит:

Systems and methods for communicating between medical devices. In one example, a method for communicating between a plurality of medical devices in a medical device system comprises, with a first medical device, communicating a first message to a second medical device. The method further comprises, with the second medical device, receiving the first message, wherein the first message comprises a plurality of communication pulses. A first set of the plurality of communication pulses represent a synchronization portion of the first message. A second set of the plurality of communication pulses represent a relative device address portion of the first message. A third set of the plurality of communication pulses represent a command portion of the first message. A fourth set of the plurality of communication pulses represent a payload portion of the first message. 1. A method for communicating between a plurality of medical devices in a medical device system , the method comprising:with a first medical device, communicating a first message to a second medical device; a first set of the plurality of communication pulses represent a synchronization portion of the first message;', 'a second set of the plurality of communication pulses represent a relative device address portion of the first message;', 'a third set of the plurality of communication pulses represent a command portion of the first message; and', 'a fourth set of the plurality of communication pulses represent a payload portion of the first message., 'with the second medical device, receiving the first message, wherein the first message comprises a plurality of communication pulses, wherein2. The method of claim 1 , wherein the synchronization portion of the first message indicates a beginning of the first message.3. The method of claim 2 , wherein the relative device address portion of the first message claim 2 , the command portion of the first message and the payload portion of the first message follow the ...

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11-02-2016 дата публикации

COMMUNICATIONS IN A MEDICAL DEVICE SYSTEM

Номер: US20160038749A1
Принадлежит:

Systems and methods for communicating between medical devices. In one example, an implantable medical device comprises a communication module configured to receive commands from other medical devices, wherein the commands include a relative address and a command payload; a memory unit that stores a relative address and a unique identifier of the implantable medical device; a processing module coupled to the communication module and the memory unit, the processing module configured to: determine whether the relative address of a received command matches the relative address stored in the memory unit of the implantable medical device; if the relative address of the received command matches the relative address stored in the memory unit of the implantable medical device, execute the received command; and if the relative address of the received command does not match the relative address stored in the memory unit of the implantable medical device, ignore the received command. 1. A method of pairing a first implantable medical device and a second implantable medical device for communication as part of a medical device system , wherein the second implantable medical device stores a unique identifier , the method comprising:transmitting a pairing command from the first implantable medical device, the pairing command including a plurality of fields including a relative address field for communicating a relative address value and a unique identifier field for communicating a serial number value;receiving the pairing command at the second implantable medical device, the second implantable medical device comparing the stored unique identifier of the second implantable medical device with the unique identifier value from the unique identifier field of the received pairing command;the second implantable medical device assigning the relative address value from the relative address field of the received pairing command to the second implantable medical device if the stored unique ...

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24-02-2022 дата публикации

Surgical gas delivery device with internal gaseous sealing module and filtered tube set therefor

Номер: US20220054773A1
Принадлежит: Conmed Corp

A system for performing an endoscopic surgical procedure in a surgical cavity of a patient that includes a gas delivery device configured to deliver a flow of pressurized gas to a gas delivery lumen extending therefrom, a gaseous sealing module communicating with a distal end of the gas delivery lumen and configured to generate a gaseous seal within a gas sealed lumen extending therefrom, and an access port communicating with a distal end of the gas sealed lumen so as to provide sealed instrument access to the surgical cavity and maintain a stable pressure within the surgical cavity.

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24-02-2022 дата публикации

CATHETER AND LEADLESS CARDIAC DEVICES INCLUDING ELECTRICAL PATHWAY BARRIER

Номер: US20220054847A1
Принадлежит: Cardiac Pacemakers, Inc.

Catheter and implantable leadless pacing devices, systems, and methods utilizing catheters and implantable leadless pacing devices are disclosed. An example catheter system may include a holding structure extending distally from a tubular member. An implantable device, such a leadless pacing device, may be located within a cavity of the holding structure and an electrical barrier may be located within the holding structure at a location between a proximal electrode and a distal electrode of the implantable device. The electrical barrier may inhibit electrical signals of the implantable device from traveling within the holding structure between the proximal electrode and the distal electrode of the implantable device. The holding structure may include one or more electrical ports adjacent the proximal end of the holding structure and adjacent or proximal of the proximal electrode of the implantable device. 1. A method of directing electrical signals from a leadless pacing device received in a distal holding structure attached to a distal end of a tubular member , the method comprising:emitting electrical signals from a first electrode of a leadless pacing device received in a distal holding structure of a delivery catheter;directing the emitted electrical signals exterior of the distal holding structure through electrical ports in the distal holding structure at a location proximal of the first electrode of the leadless pacing device; andreceiving the emitted electrical signals directed exterior of the distal holding structure at a second electrode of the leadless pacing device within the distal holding structure, wherein the second electrode of the leadless pacing device is located distal of the first electrode of the leadless pacing device.2. The method of claim 1 , wherein the first electrode is positioned on a proximal end of the leadless pacing device and the second electrode is positioned on a distal end of the leadless pacing device.3. The method of claim 1 , ...

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25-02-2016 дата публикации

LEADLESS CARDIAC PACEMAKER HAVING A SENSOR WITH A LOWER POWER MODE

Номер: US20160051823A1
Принадлежит:

A leadless cardiac pacemaker (LCP) configured to sense and pace a patient's heart includes a sensor configured to sense a parameter related to cardiac contractility of the patient's heart and a power management unit that is operatively coupled to the sensor. The power management unit is configured to place the sensor in a higher power sense mode during times when sensing the parameter related to cardiac contractility is desired and to place the sensor in a lower power mode during times when sensing the parameter related to cardiac contractility is not desired. 1. A leadless cardiac pacemaker (LCP) configured to sense and pace a patient's heart , the LCP comprising:a sensor configured to sense a parameter related to cardiac contractility of the patient's heart; place the sensor in a higher power sense mode during times when sensing the parameter related to cardiac contractility is desired; and', 'place the sensor in a lower power mode during times when sensing the parameter related to cardiac contractility is not desired., 'a power management unit operatively coupled to the sensor, the power management unit configured to2. The leadless cardiac pacemaker (LCP) of claim 1 , wherein the sensor comprises an accelerometer.3. The leadless cardiac pacemaker (LCP) of claim 1 , wherein the sensor comprises one or more of an acoustic sensor claim 1 , an impedance sensor claim 1 , a flow sensor and a pressure sensor.4. The leadless cardiac pacemaker (LCP) of claim 1 , wherein the power management unit turns the sensor on in the higher power sense mode and turns the sensor off in the lower power mode.5. The leadless cardiac pacemaker (LCP) of claim 1 , wherein the sensor consumes power in the higher power sense mode but does not consume power in the lower power mode.6. The leadless cardiac pacemaker (LCP) of claim 1 , wherein the sensor consumes power in both the higher power sense mode and the lower power mode.7. The leadless cardiac pacemaker (LCP) of claim 1 , wherein the ...

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10-03-2022 дата публикации

SURGICAL GAS DELIVERY SYSTEM WITH REMOTE GASEOUS SEALING MODULE FOR MAINTAINING STABLE PRESSURE IN A SURGICAL CAVITY

Номер: US20220072242A1
Принадлежит: CONMED CORPORATION

A system for performing an endoscopic surgical procedure in a surgical cavity of a patient that includes a gas delivery device configured to deliver a flow of pressurized gas to a gas delivery lumen extending therefrom, a gaseous sealing module communicating with a distal end of the gas delivery lumen and configured to generate a gaseous seal within a gas sealed lumen extending therefrom, and an access port communicating with a distal end of the gas sealed lumen so as to provide sealed instrument access to the surgical cavity and maintain a stable pressure within the surgical cavity. 125-. (canceled)26. A gaseous sealing module for use with a surgical gas delivery system comprising:a) a vented housing defining an interior plenum chamber and a tapered throat portion for communication with a gas sealed lumen;b) a ring jet assembly disposed within the interior plenum chamber of the vented housing for generating a gaseous seal within an interior region of the throat portion of the vented housing, which creates a stable pressure barrier that maintains stable pressure through the length of the gas sealed lumen; andc) a connective fitting extending from the vented housing and defining a gas delivery path in communication with the interior plenum chamber of the vented housing and a gas return path in communication with the throat portion of the vented housing.27. A gaseous sealing module as recited in claim 26 , wherein the vented housing includes a louvered vent surface opposite the tapered throat portion of thereof that facilitates bi-directional gas exchange with atmosphere.28. A gaseous sealing module as recited in claim 26 , wherein the ring jet assembly is a two-part ring jet assembly that includes an upper ring member with an upper O-ring seal and a lower ring member with a lower O-ring seal.29. A gaseous sealing module as recited in claim 26 , wherein the connective fitting is a dual lumen fitting in which the gas delivery path and the gas return path are arranged ...

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01-03-2018 дата публикации

SYSTEMS AND METHODS FOR DETERMINING PRESENCE OF AN ANALYTE USING AN IMPLANTABLE MEDICAL DEVICE

Номер: US20180055426A1
Принадлежит:

Systems and methods to determine presence of an analyte using an implantable medical device are disclosed. In an embodiment, a medical system includes an implantable medical device, a light source, an optical sensor and a processor. The implantable medical device includes an indicator tag, which is responsive to an analyte. The light source is configured to emit light onto the indicator tag, where the emitted light comprises at least one wavelength of light, and where the indicator tag emanates light, in response to the emitted light, that corresponds to whether the indicator tag is exposed the analyte. The optical sensor is configured to receive at least a portion of the emanated light, which includes at least one wavelength of light. And, the processor is configured to determine whether the indicator tag is exposed to the analyte based on the received light. 1. A medical system comprising:an implantable medical device comprising an indicator tag, wherein the indicator tag is responsive to an analyte;a light source configured to emit light onto the indicator tag, wherein the emitted light comprises at least one wavelength of light and wherein the indicator tag emanates light, in response to the emitted light, that corresponds to whether the indicator tag is exposed the analyte;an optical sensor configured to receive light, the received light comprising at least a portion of the emanated light, wherein the received light comprises at least one wavelength of light; anda processor communicatively coupled to the optical sensor, wherein the processer is configured to determine whether the indicator tag is exposed to the analyte based on the received light.2. The medical system of claim 1 , wherein the light source and the optical sensor are incorporated into the implantable medical device.3. The medical system of claim 1 , wherein the light source is incorporated into a different device than the implantable medical device; and wherein the optical sensor is incorporated ...

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03-03-2016 дата публикации

ENERGY ADAPTIVE COMMUNICATION FOR MEDICAL DEVICES

Номер: US20160059022A1
Принадлежит:

System and methods for energy adaptive communications between medical devices are disclosed. In one example, a medical device includes a communication module configured to deliver a plurality of pulses to tissue of a patient, where each pulse has an amount of energy. A control module operatively coupled to the communication module, may be configured to, for each delivered pulse, determine whether the delivered pulse produces an unwanted stimulation of the patient and to change the amount of energy of the plurality of pulses over time so as to identify an amount of energy that corresponds to an unwanted stimulation threshold for the pulses. The control module may then set a maximum energy value for communication pulses that is below the unwanted stimulation threshold, and may deliver communication pulses below the maximum energy value during communication with another medical device. 1. A method for setting an energy level for communication pulses of a medical device , the method comprising:delivering a plurality of pulses to tissue of a patient, where each pulse includes an amount of energy, and for each delivered pulse, determining whether the delivered pulse produces an unwanted stimulation of the patient;changing the amount of energy of the plurality of pulses over time so as to identify an amount of energy that corresponds to an unwanted stimulation threshold for the pulses; andsetting a maximum energy value for communication pulses that is below the unwanted stimulation threshold.2. The method of claim 1 , wherein the maximum energy value is set a predetermined safety margin below the unwanted stimulation threshold.3. The method of claim 1 , wherein the unwanted stimulation is a capture of a heart of the patient.4. The method of claim 3 , wherein delivering a plurality of pulses to tissue of a patient comprises delivering a pulse in lieu of a pacing pulse claim 3 , and delivering a safety pacing pulse if the pulse did not capture the heart.5. The method of ...

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03-03-2016 дата публикации

DISPLAY OF TEMPORALLY ALIGNED HEART INFORMATION FROM SEPARATE IMPLANTABLE MEDICAL DEVICES ON AN EXTRACORPOREAL DISPLAY

Номер: US20160059024A1
Принадлежит:

A cardiac rhythm management system includes a first implantable device such as a defibrillator and a second implantable device such as a leadless cardiac pacemaker. A programmer is configured to receive and display heart data emanating from the implantable defibrillator and from the leadless cardiac pacemaker. The heart data emanating from the leadless cardiac pacemaker is displayed in temporal alignment with the heart data emanating from the implantable defibrillator. 1. A cardiac rhythm management system comprising:an implantable defibrillator configured to monitor a patient's heart and provide shocking therapy if appropriate;a leadless cardiac pacemaker configured to sense the patient's heart and provide pacing therapy if appropriate;a non-implanted device configured to receive and display heart data emanating from the implantable defibrillator and from the leadless cardiac pacemaker; andwherein the heart data emanating from the leadless cardiac pacemaker and the heart data emanating from the implantable defibrillator are displayed in temporal alignment.2. The cardiac rhythm management system of claim 1 , wherein the heart data emanating from the implantable defibrillator and/or the heart data emanating from the leadless cardiac pacemaker is displayed by the non-implanted device in real or near real time.3. The cardiac rhythm management system of claim 1 , wherein the heart data emanating from the implantable defibrillator and/or the heart data emanating from the leadless cardiac pacemaker is stored data claim 1 , and the stored heart data emanating from the leadless cardiac pacemaker and the stored heart data emanating from the implantable defibrillator is displayed at a later time.4. The cardiac rhythm management system of claim 1 , wherein the heart data emanating from the leadless cardiac pacemaker is communicated to the non-implanted device via the implantable defibrillator.5. The cardiac rhythm management system of claim 1 , wherein the heart data emanating ...

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03-03-2016 дата публикации

MEDICAL DEVICE WITH TRIGGERED BLANKING PERIOD

Номер: US20160059025A1
Принадлежит:

An implantable cardiac rhythm system includes a first implantable medical device configured to detect a first heartbeat from a first location, and a second implantable medical device configured to detect the first heart beat of the patient from a second location. The second implantable medical device, upon detecting the first heart beat, may communicate an indication of the detected first heart beat to the first implantable medical device, and in response, the first implantable medical device may institute a blanking period having a blanking period duration such that a T-wave of the detected first heart beat is blanked out by the first implantable medical device so as to not be interpreted as a subsequent second heart beat. In some instances, the first implantable medical device is an SICD and the second implantable medical device is a LCP. 1. An implantable cardiac rhythm system comprising:a first implantable medical device configured to monitor a patient's heart rhythm and provide shock therapy to correct the patient's heart rhythm, the first implantable medical device further configured to detect a first heart beat of the patient from a first location;a second implantable medical device configured to sense the patient's heart, the second implantable medical device configured to detect the first heart beat of the patient from a second location; andwherein the second implantable medical device, upon detecting the first heart beat, communicates an indication of the detected first heart beat to the first implantable medical device, and in response, the first implantable medical device institutes a blanking period having a blanking period duration such that a T-wave of the detected first heart beat is blanked out by the first implantable medical device so as to not be interpreted as a subsequent second heart beat.2. The implantable cardiac rhythm system of claim 1 , wherein the first implantable medical device comprises a defibrillator or cardioverter.3. The ...

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21-02-2019 дата публикации

Implantable medical device with pressure sensor

Номер: US20190054304A1
Принадлежит: Cardiac Pacemakers Inc

An implantable medical device (IMD) is configured with a pressure sensor. The IMD includes a housing and a diaphragm that is exposed to the environment outside of the housing. The diaphragm is configured to transmit a pressure from the environment outside of the housing to a piezoelectric membrane. In response, the piezoelectric membrane generates a voltage and/or a current, which is representative of a pressure change applied to the housing diaphragm. In some cases, only changes in pressure over time are used, not absolute or gauge pressures.

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22-03-2018 дата публикации

IMPLANTABLE CARDIAC MONITOR

Номер: US20180078771A1
Принадлежит: Cardiac Pacemakers, Inc.

An implantable cardiac monitor (ICM) may be configured to be deployed subcutaneous, submuscular, or substernal at a position that enables the ICM to detect cardiac activity. In some cases, the ICM includes a housing that includes a body portion and a tail portion. A first electrode may be disposed adjacent a first end of the body portion, a second electrode may be disposed adjacent a second end of the body portion and a third electrode may be disposed adjacent a tail end of the tail portion. A controller may be disposed within the housing and may be operably coupled to the first electrode, the second electrode and the third electrode. The controller may be configured to select a pair of the first electrode, the second electrode and the third electrode to use for sensing cardiac electrical activity and to communicate information about the sensed activity to a second medical device. 1. An implantable cardiac monitor (ICM) configured to be deployed subcutaneous , submuscular , or substernal at a position that enables the ICM to detect cardiac activity , the ICM comprising:a first electrode secured relative to the ICM;a second electrode secured relative to the ICM and spaced from the first electrode;a third electrode secured relative to the ICM and spaced from the first electrode and the second electrode; a body portion having a first end and a second end;', 'a tail portion extending from the body portion to a tail end;, 'a housing that is configured for subcutaneous, submuscular or substernal deployment and to support the first electrode, the second electrode and the third electrode, the housing comprisingthe first electrode disposed adjacent the first end of the body portion;the second electrode disposed adjacent the second end of the body portion;the third electrode disposed adjacent the tail end of the tail portion;a controller disposed within the housing and operably coupled to the first electrode, the second electrode and the third electrode;the controller ...

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22-03-2018 дата публикации

USING SENSOR DATA FROM AN INTRACARDIALLY IMPLANTED MEDICAL DEVICE TO INFLUENCE OPERATION OF AN EXTRACARDIALLY IMPLANTABLE CARDIOVERTER

Номер: US20180078779A1
Принадлежит: Cardiac Pacemakers, Inc.

A medical system for sensing and regulating cardiac activity of a patient may include a cardioverter that is configured to generate and deliver shocks to cardiac tissue and a leadless cardiac pacemaker (LCP) that is configured to sense cardiac activity and to communicate with the cardioverter. The cardioverter may be configured to detect a possible arrhythmia and, upon detecting the possible arrhythmia, may send a verification request to the LCP to help conform that the possible arrhythmia is occurring. The LCP, upon receiving the verification request from the cardioverter, may be configured to activate one or more of a plurality of sensors to attempt to help confirm that the possible arrhythmia is occurring. 1. A medical system for sensing and regulating cardiac activity of a patient , the medical system comprising:a cardioverter configured to generate and deliver shocks to cardiac tissue;a leadless cardiac pacemaker (LCP) configured to sense cardiac activity, the LCP configured to communicate with the cardioverter;the cardioverter configured to detect a possible arrhythmia;upon detecting the possible arrhythmia, the cardioverter is configured to send a verification request to the LCP soliciting verification from the LCP that the possible arrhythmia is occurring;upon receiving the verification request from the cardioverter, the LCP is configured to use signals from one or more of a plurality of sensors of the LCP to attempt to confirm that the possible arrhythmia is occurring;the LCP is further configured to send a confirmation response to the cardioverter if the LCP confirms that the possible arrhythmia is occurring;the cardioverter is configured to generate and deliver a therapy to cardiac tissue if the LCP confirms that the possible arrhythmia is occurring; andthe cardioverter is configured to inhibit delivery of a therapy to cardiac tissue if the LCP did not confirm that the possible arrhythmia is occurring.2. The medical system of claim 1 , wherein: a first ...

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21-03-2019 дата публикации

SYSTEM AND METHOD FOR DETECTING TAMPONADE

Номер: US20190083791A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, methods, and devices for determining occurrences of a tamponade condition are disclosed. One exemplary method includes monitoring an accelerometer signal of a leadless cardiac pacemaker attached to a heart wall, determining if a tamponade condition of the patient's heart is indicated based at least in part on the monitored accelerometer signal, and in response to determining that the tamponade condition is indicated, providing a notification of the tamponade condition for use by a physician to take corrective action. 1. A method for detecting a tamponade condition of a patient's heart after attachment of a leadless cardiac pacemaker to the patient's heart , the leadless cardiac pacemaker having a motion sensor that produces a motion signal , the method comprising:monitoring the motion signal of the leadless cardiac pacemaker;identifying a characteristic of the motion signal;determining when the tamponade condition is indicated based at least in part on whether the identified characteristic of the motion signal changes over time in a predetermined way; andin response to determining that the tamponade condition is indicated, providing a notification of the tamponade condition for use by a physician to take corrective action.2. The method of claim 1 , wherein the motion sensor comprises an accelerometer claim 1 , and the motion signal comprises an accelerometer signal.3. The method of claim 2 , wherein the accelerometer comprises a multi-axis accelerometer claim 2 , and the accelerometer signal is a multi-axis accelerometer signal.4. The method of claim 2 , wherein the identified characteristic of the motion signal is indicative of a displacement of a wall of the patient's heart.5. The method of claim 2 , wherein the identified characteristic of the motion signal is indicative of a filling volume of the patient's heart.6. The method of claim 2 , wherein the identified characteristic of the motion signal is indicative of a heart sound of the patient's heart.7. ...

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02-04-2015 дата публикации

COLOR CODED HEADER BORE IDENTIFICATION

Номер: US20150094791A1
Принадлежит:

An implantable pulse generator includes a device housing containing pulse generator circuitry and a header connected to the device housing. The header includes a core assembly defining first and second lead bore cavities sized for receiving terminal pins of leads, first and second labels, and an outer layer. The first label is printed onto a surface of the core assembly proximate the first lead bore cavity and includes a first color. The second label is printed onto the surface of the core assembly proximate the second lead bore cavity and includes a second color different from the first color. The outer layer is overmolded over the core assembly so as to encapsulate the first and second labels and to allow access to the first and second lead bore cavities. 1. An implantable pulse generator comprising:a device housing containing pulse generator circuitry; and a core assembly defining first and second lead bore cavities sized for receiving terminal pins of leads;', 'a first label printed onto a surface of the core assembly proximate the first lead bore cavity, wherein the first label comprises a first color;', 'a second label printed onto the surface of the core assembly proximate the second lead bore cavity, wherein the second label comprises a second color different from the first color; and', 'an outer layer overmolded over the core assembly so as to encapsulate the first and second labels and to allow access to the first and second lead bore cavities., 'a header connected to the device housing, the header comprising2. The implantable pulse generator of claim 1 , wherein the core assembly comprises an engineered thermoplastic polyurethane and the outer layer comprises an epoxy resin that bonds to the core assembly so as to isolate the first and second labels from an exterior of the header.3. The implantable pulse generator of claim 1 , and further comprising:a lenticular lens positioned proximate the first label.4. The implantable pulse generator of claim 1 , ...

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02-04-2015 дата публикации

Labeled implantable medical devices

Номер: US20150094792A1
Принадлежит: Cardiac Pacemakers Inc

In general, techniques are described for labeling an implantable medical device (IMD). In one example, an IMD can include a housing including electronic circuitry. The IMD can include a header coupled to the housing and includes a core. The core can define a bore and include a first metal label positioned adjacent to the at least one bore. The IMD includes a lead assembly including at least one lead having a distal end and a proximal end, the at least one lead including a second metal label, the distal end including at least one electrode and the proximal end received within the bore.

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05-05-2022 дата публикации

Rolled multilayer chemical sensing elements and devices and system including the same

Номер: US20220133177A1
Принадлежит: Cardiac Pacemakers Inc

Embodiments herein relate to chemical sensing elements including a rolled multilayer structure. In a first aspect, a method of making a chemical sensor element is included, the method including depositing a polymer layer onto a deposition substrate, infusing a chemical sensor composition into the polymer layer, applying a hydrogel layer over the polymer layer to form a multilayer film, rolling the multilayer film down the deposition substrate, and slicing the multilayer film to form the chemical sensor element. Other embodiments are also included herein.

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05-05-2022 дата публикации

FIBROUS COVER LAYER FOR MEDICAL DEVICES

Номер: US20220133178A1
Принадлежит:

Embodiments herein relate to implantable medical devices including a fibrous cover layer. In an embodiment, an implantable medical device is included having a housing, an optical chemical sensing element disposed along the housing, and a fibrous electrospun cover layer, wherein the fibrous electrospun cover layer is disposed over the optical chemical sensing element. In another embodiment, a method of making an implantable medical device is included. The method can specifically include depositing an optical chemical sensing element into a sensor optical carrier attached to a housing and applying a fibrous electrospun cover layer over the optical chemical sensing element. Other embodiments are also included herein.

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05-05-2022 дата публикации

Integrated thermo-photonic chemical sensor

Номер: US20220133234A1
Автор: Michael J. Kane, Yingbo Li
Принадлежит: Cardiac Pacemakers Inc

Embodiments herein relate to integrated thermo-photonic chemical sensors as part of an implantable sensing device. In a first aspect, an implantable sensing device is included having a sensing element, an optical excitation assembly configured to illuminate the sensing element, an optical detection assembly configured to receive optical signals from the sensing element, and a control circuit, wherein the control circuit is configured to receive signals from the optical detection assembly, receive signals reflecting temperature, and process signals from the optical detection assembly while adjusting for the signals reflecting temperature. Other embodiments are also included herein.

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05-04-2018 дата публикации

SYSTEMS AND METHODS FOR DETERMINING AN ABNORMAL GLYCEMIC EVENT USING SURROGATES FOR GLUCOSE

Номер: US20180092577A1
Принадлежит:

Systems and methods for determining an abnormal glycemic event using surrogates for glucose are disclosed herein. In an embodiment, a medical system includes a medical device associated with a subject and a processor communicatively coupled to the medical device. The medical device is configured to sense a signal corresponding to a presence of a compound in at least one of: an exhalation breath, interstitial fluid, blood and urine, wherein the compound is a surrogate for glucose. The processor is configured to receive the signal corresponding to the presence of the compound; determine the presence of the compound based on the received signal; and determine the subject is experiencing an abnormal glycemic event in response to the determined presence of the compound. 1. A medical system comprising:a medical device associated with a subject, wherein the medical device is configured to sense a signal corresponding to a presence of a compound in at least one of: an exhalation breath, interstitial fluid, blood and urine, wherein the compound is a surrogate for glucose; and receive the signal corresponding to the presence of the compound;', 'determine the presence of the compound based on the received signal; and', 'determine the subject is experiencing an abnormal glycemic event in response to the determined presence of the compound., 'a processor communicatively coupled to the medical device, the processor configured to2. The medical system of claim 1 ,wherein the medical device is an implantable medical device and comprises an indicator tag, wherein the indicator tag is responsive to the compound; andwherein to sense a signal corresponding to the presence of the compound, the medical device is configured to sense light emanated from the indicator tag, wherein the light emanated from the indicator tag is in response to the indicator tag being exposed to light.3. The medical system of claim 2 , wherein to sense light emanated from the indicator tag claim 2 , the medical ...

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05-04-2018 дата публикации

COMMUNICATIONS BETWEEN A PLURALITY OF MEDICAL DEVICES USING TIME DELAYS BETWEEN COMMUNICATION PULSES BETWEEN SYMBOLS

Номер: US20180093101A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems and methods for communicating between medical devices. In one example, an implantable medical device comprising may comprise one or more electrodes and a controller coupled to the electrodes. The controller may be configured to receive a first communication pulse at a first communication pulse time and a second communication pulse at a second communication pulse time via the one or more electrodes. The controller may further be configured to identify one of three or more symbols based at least in part on the time difference between the first communication pulse time and the second communication pulse time. 1. A method of communicating a message from a first medical device to a second medical device , the method comprising:asynchronously beginning transmission, followed by transmitting a plurality of communication pulses from the first medical device;receiving the plurality of communication pulses at the second medical device;the second medical device determining an amount of time between at least selected consecutive communication pulses, and determining one of three or more symbols for each determined amount of time based at least in part on the determined amount of time; andwherein the three or more symbols comprising a synchronization symbol that when received indicates to the second medical device a beginning of the message.2. The method of claim 1 , wherein the three or more symbols comprise a “0” symbol claim 1 , a “1” symbol and the synchronization symbol.3. The method of claim 1 , wherein the three or more symbols comprise a “0” symbol claim 1 , a “1” symbol claim 1 , the synchronization symbol and an End-of-Frame (EOF) symbol.4. The method of claim 1 , wherein the three or more symbols comprise the synchronization symbol and an End-of-Frame (EOF) symbol.5. The method of claim 1 , wherein the three or more symbols comprise:a “0” symbol when the determined amount of time corresponds to a first time difference;a “1” symbol when the determined amount of ...

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26-03-2020 дата публикации

MULTI-MODAL FIVE LUMEN GAS CIRCULATION SYSTEM FOR USE IN ENDOSCOPIC SURGICAL PROCEDURES

Номер: US20200094002A1
Принадлежит:

A system is disclosed for performing an endoscopic surgical procedure in a surgical cavity, which includes a multi-modal gas delivery device including a primary gas circulation pump, a secondary gas circulation pump and an insufflation subunit, and an interface plate adapted and configured to engage with the multi-modal gas delivery device and including a connector and a filter seat corresponding to five different lumens, each of which provides a different functionality. 1. A system for performing an endoscopic surgical procedure in a surgical cavity , comprising:a) a multi-modal gas delivery device including a primary gas circulation pump, a secondary gas circulation pump and an insufflation subunit; and i) an insufflation and sensing lumen for delivering insufflation gas from the insufflation subunit to the surgical cavity and for facilitating sensing of surgical cavity pressure;', 'ii) a gas delivery lumen for delivering pressurized gas from the primary gas circulation pump to a gas sealed access device;', 'iii) a gas return lumen for returning gas used to generate a gaseous seal within the gas sealed access device back to the primary gas circulation pump;', 'iv) a smoke evacuation lumen for removing smoke filled gas from the surgical cavity by way of the secondary gas circulation pump; and', 'v) a recirculation supply lumen for returning filtered gas back to the surgical cavity from the secondary gas circulation pump., 'b) an interface plate adapted and configured to engage with the multi-modal gas delivery device and including a connector and a filter seat corresponding to each of the following five lumens2. A system as recited in claim 1 , wherein the insufflation and sensing lumen is attached to a respective connector of the interface plate claim 1 , and a filter canister is associated with the interface plate to communicate with the attached lumen.3. A system as recited in claim 1 , wherein the insufflation and sensing lumen claim 1 , the gas delivery lumen ...

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11-04-2019 дата публикации

CONDUCTED COMMUNICATION IN A MEDICAL DEVICE SYSTEM

Номер: US20190105502A1
Принадлежит: Cardiac Pacemakers, Inc.

An implantable medical device for implantation into a patient may include a housing, a pulse generation circuit disposed at least partially within the housing, a plurality of electrodes electrically coupled to the pulse generation circuit, the plurality of electrodes being exposed external to the housing, and a controller operatively coupled to the pulse generation circuit. The controller may be configured to command the pulse generation circuit to deliver a phasic conducted communication pulse via at least two of the plurality of electrodes. Additionally, the phasic conducted communication pulse may comprise a first phase having a first polarity followed by a second phase having an opposite second polarity, wherein the second phase may have a duration of less than 60 microseconds, and wherein the first phase having may have a duration of between five percent and eighty percent of the duration of the second phase. 1. An implantable medical device for implantation into a patient , comprising:a housing;a pulse generation circuit disposed at least partially within the housing;a plurality of electrodes electrically coupled to the pulse generation circuit, the plurality of electrodes being exposed external to the housing; and command the pulse generation circuit to deliver a sub-threshold phasic conducted communication pulse via at least two of the plurality of electrodes;', 'wherein the sub-threshold phasic conducted communication pulse comprises a first phase having a first polarity followed by a second phase having an opposite second polarity;', 'the second phase having a duration of less than 20 microseconds; and', 'the first phase having a duration of between 30 percent and 60 percent of the duration of the second phase., 'a controller operatively coupled to the pulse generation circuit, the controller configured to2. The implantable medical device of claim 1 , wherein the first phase has a first phase amplitude claim 1 , with the absolute value of the first phase ...

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03-05-2018 дата публикации

IMPLANTABLE MEDICAL DEVICE DELIVERY SYSTEM WITH INTEGRATED SENSOR

Номер: US20180117304A1
Принадлежит: Cardiac Pacemakers, Inc.

A delivery and deployment device may include a handle assembly and a shaft extending distally from the handle assembly. A device containment housing may be coupled to a distal region of the shaft and may extend distally therefrom. The distal containment housing may be configured to accommodate at least a portion of the IMD therein. The IMD may, for example, be a leadless pacemaker, a lead, a neurostimulation device, a sensor or any other suitable IMD. A plurality of electrodes may be distributed about an exterior surface of the device containment housing such that at least some of the plurality of electrodes may be positioned to test a potential IMD deployment location before deploying the IMD. 1. A delivery and deployment device configured to deliver an implantable medical device (IMD) to a chamber of a patient's heart and deploy the IMD therein , the delivery and deployment device comprising:a handle assembly;a shaft extending distally from the handle assembly, the shaft including a distal region;a device containment housing coupled to the distal region of the shaft and extending distally therefrom, the device containment housing configured to accommodate at least part of the IMD therein;a plurality of electrodes distributed about an exterior surface of the device containment housing such that at least some of the plurality of electrodes may be positioned to test a potential IMD deployment location before deploying the IMD; anda plurality of electrical conductors operably coupled with the plurality of electrodes and extending proximally back along the shaft toward the handle assembly, the plurality of electrical conductors having proximal ends configured to be operably coupled to a testing device.2. The delivery and deployment device of claim 1 , wherein the plurality of electrodes include at least some electrodes that are radially disposed about the exterior surface of the device containment housing.3. The delivery and deployment device of claim 1 , wherein the ...

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03-05-2018 дата публикации

SYSTEMS AND METHODS FOR ACTIVITY LEVEL PACING

Номер: US20180117338A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, devices, and methods for pacing a heart of a patient are disclosed. An illustrative method may include determining a motion level of the patient using a motion sensor of an implantable medical device secured relative to a patient's heart, and setting a pacing rate based at least in part on the patient's motion level. The patient's motion level may be determined by, for example, comparing the motion level sensed by the motion sensor during a current heart beat to a motion level associated with one or more previous heart beats. Noise may occur in the motion level measurements during those heart beats that transition between an intrinsically initiated heart beat and pace initiated heart beat. Various techniques may be applied to the motion level measurements to help reduce the effect of such noise. 1. An implantable medical device (MD) implantable within a patient's heart , the IMD comprising:two or more sensors including a motion sensor; identify a plurality of heart beats using one or more of the sensors, each of the plurality of heart beats having a systole phase and diastole phase;', 'identify each of two or more of the plurality of heart beats as an intrinsically initiated heart beat or a pace initiated heart beat;', identify a baseline intrinsic motion level by identifying a motion level of the IMD using the motion sensor during N intrinsically initiated heart beats, where N is greater than two;', 'identify a baseline pace motion level by identifying a motion level of the IMD using the motion sensor during N pace initiated heart beats, where N is greater than two;, 'identify a calibration time window, and during the calibration time window, 'determine an offset based at least in part on the baseline intrinsic motion level and the baseline pace motion level;', 'for an intrinsically initiated heart beat that immediately follows a pace initiated heart beat, identify a motion level of the IMD using the motion sensor and apply the offset, and compare the ...

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03-05-2018 дата публикации

SYSTEMS AND METHODS FOR ACTIVITY LEVEL PACING

Номер: US20180117339A1
Принадлежит: Cardiac Pacemakers, Inc.

Systems, devices, and methods for pacing a heart of a patient are disclosed. An illustrative method may include determining a motion level of the patient using a motion sensor of an implantable medical device secured relative to a patient's heart, and setting a pacing rate based at least in part on the patient's motion level. The patient's motion level may be determined by, for example, comparing the motion level sensed by the motion sensor during a current heart beat to a motion level associated with one or more previous heart beats. Noise may occur in the motion level measurements during those heart beats that transition between an intrinsically initiated heart beat and pace initiated heart beat. Various techniques may be applied to the motion level measurements to help reduce the effect of such noise. 1. An implantable medical device (IMD) implantable within a patient's heart , the IMD comprising:two or more sensors including a motion sensor; identify a plurality of heart beats using one or more of the sensors, each of the plurality of heart beats having a systole phase and diastole phase;', 'identify each of two or more of the plurality of heart beats as an intrinsically initiated heart beat or a pace initiated heart beat;', 'for an intrinsically initiated heart beat, identify a motion level of the IMD using the motion sensor, and compare the identified motion level of the IMD to a motion level of the IMD identified for one or more previous intrinsically initiated heart beats, and identify a motion level of the patient based at least in part on the comparison;', 'for a pace initiated heart beat, identify a motion level of the IMD using the motion sensor, and compare the identified motion level of the IMD to a motion level of the IMD identified for one or more previous pace initiated heart beats, and identify the motion level of the patient based at least in part on the comparison; and', 'set a pacing rate parameter based at least in part on the identified motion ...

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03-05-2018 дата публикации

IMPLANTABLE MEDICAL DEVICE WITH GYROSCOPE

Номер: US20180117340A1
Принадлежит: Cardiac Pacemakers, Inc.

An implantable medical device (IMD) that includes a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, and a gyroscope secured relative to the housing. The IMD may include circuitry in the housing in communication with the first electrode, the second electrode, and the gyroscope. The circuitry may be configured to determine and store a plurality of torsion data measurements, from which a representation of a twist profile may be determined. 1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart , the LCP comprising:a housing;an electrode secured relative to the housing and exposed to the environment outside of the housing;a gyroscope disposed relative to the housing;circuitry in the housing in communication with the electrode and the gyroscope, the circuitry configured to generate a twisting profile over one or more cardiac cycles; update one or more pacing parameters of the LCP based at least in part on the twisting profile; and', "pace the patient's heart using one or more of the updated pacing parameters."], 'wherein the circuitry is further configured to2. The LCP of claim 1 , wherein the circuitry is configured to update the twisting profile at a predefined regular interval.3. The LCP of claim 1 , wherein the circuitry is configured to update the twisting profile in response to a detected condition change.4. The LCP of claim 1 , wherein the detected condition change corresponds to one of exercise claim 1 , heart failure status claim 1 , therapy modification claim 1 , cardiac status claim 1 , pacing status claim 1 , or posture.5. The LCP of claim 1 , wherein updating the one or more pacing parameters of the LCP comprises adjusting an AV delay.6. The LCP of claim 1 , wherein updating the one or more pacing parameters of the LCP comprises adjusting a VV delay.7. The LCP of claim 1 , wherein the circuitry is further configured to compare the twisting ...

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03-05-2018 дата публикации

IMPLANTABLE MEDICAL DEVICE WITH PRESSURE SENSOR

Номер: US20180117341A1
Принадлежит: Cardiac Pacemakers, Inc.

An implantable medical device (IMD) is configured with a pressure sensor. The IMD includes a housing, a pressure sensor and a fluid filled cavity. The housing has a diaphragm that is exposed to the environment outside of the housing. The pressure sensor has a pressure sensor diaphragm that is responsive to a pressure applied to the pressure sensor diaphragm and provides a pressure sensor output signal that is representative of the pressure applied to the pressure sensor diaphragm. The fluid filled cavity is in fluid communication with both the diaphragm of the housing and the pressure sensor diaphragm of the pressure sensor. The fluid filled cavity is configured to communicate a measure related to the pressure applied by the environment to the diaphragm of the housing to the pressure sensor diaphragm of the pressure sensor. 1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart , the LCP comprising:a housing having a proximal end and a distal end;a first electrode secured relative to the housing and exposed to the environment outside of the housing;a second electrode secured relative to the housing and exposed to the environment outside of the housing;the housing having a diaphragm that is exposed to the environment outside of the housing, the diaphragm is responsive to a pressure applied to the diaphragm by the environment outside of the housing;a pressure sensor within the housing, the pressure sensor having a pressure sensor diaphragm that is responsive to a pressure applied to the pressure sensor diaphragm and provides a pressure sensor output signal that is representative of the pressure applied to the pressure sensor diaphragm;a fluid filled cavity in fluid communication with both the diaphragm of the housing and the pressure sensor diaphragm of the pressure sensor, the fluid filled cavity is configured to communicate a measure related to the pressure applied by the environment to the diaphragm of the housing ...

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25-04-2019 дата публикации

Devices for performing minimally invasive surgery having rotating multiport access

Номер: US20190117209A1
Принадлежит: Conmed Corp

An access device for surgical procedures includes a multiport end cap including a plurality of separate access ports for accommodating introduction of individual surgical instruments into the body of a patient. The access ports extend in a proximal direction. The end cap includes a distally extending seal ring. A bottom body has a distally extending tubular body with an access channel defined therethrough for accommodating surgical instruments from the access ports into the body of a patient. The bottom body includes a plurality of circumferentially spaced apart teeth, wherein the seal ring of the end cap is received inside and seals against a proximal rim of the bottom body. The end cap includes at least one flexible tab with distal teeth thereon configured to engage and disengage the teeth of the bottom body to selectively permit or prevent relative axial rotation of the multiport end cap.

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25-04-2019 дата публикации

DEVICES FOR PERFORMING MINIMALLY INVASIVE SURGERY HAVING FOAM SUPPORT HOUSING

Номер: US20190117255A1
Принадлежит:

An access device for surgical procedures includes an end cap having a rigid body with a flexible support sealingly mounted to the rigid body with at least one separate access port for accommodating introduction of individual surgical instruments into a body of a patient. The at least one access port is sealingly attached to the flexible support and extend in a proximal direction therefrom. The flexible support is of a material more flexible than those of the rigid body and the at least one access port to provide for relative angular movement of the at least one access port to provide flexibility for positioning surgical instruments introduced through the at least one access port. 1. An access device for surgical procedures comprising:an end cap including a rigid body with a flexible support sealingly mounted to the rigid body with at least one separate access port for accommodating introduction of individual surgical instruments into a body of a patient, the at least one access port sealingly attached to the flexible support and extending in a proximal direction therefrom, wherein the flexible support is of a material more flexible than those of the rigid body and the at least one access port to provide for relative angular movement of the at least one access port to provide flexibility for positioning surgical instruments introduced through the at least one access port.2. The access device as recited in claim 1 , wherein the flexible support includes a flexible foam material including at least one of a rubber material claim 1 , a rubber-like material claim 1 , a VersaFlex material claim 1 , and/or a foam material made from a gel or gel-like material.3. The access device as recited in claim 2 , wherein the foam material is at least one of a closed-cell foam and/or an open-cell foam with an air tight coating for providing sealing to prevent gas flow therethrough.4. The access device as recited in claim 1 , wherein the access ports are mounted to a distal surface of ...

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25-04-2019 дата публикации

DEVICES FOR PERFORMING MINIMALLY INVASIVE SURGERY HAVING BELLOWS SUPPORT HOUSING

Номер: US20190117257A1
Принадлежит:

An access device for surgical procedures includes a multiport end cap having a rigid body with a flexible support sealingly mounted to the rigid body with a plurality of separate access ports for accommodating introduction of individual surgical instruments into a body of a patient. At least one of the access ports is sealingly attached to the flexible support and extends in a proximal direction therefrom. The flexible support is of a material more flexible than those of the rigid body and access ports to provide for relative angular movement of at least one of the access ports to provide flexibility for positioning surgical instruments introduced through the access ports. The flexible support can include at least one flexible bellow. 1. An access device for surgical procedures comprising:a multiport end cap including a rigid body with a flexible support sealingly mounted to the rigid body with a plurality of separate access ports for accommodating introduction of individual surgical instruments into a body of a patient, at least one of the access ports sealingly attached to the flexible support and extending in a proximal direction therefrom, wherein the flexible support is of a material more flexible than those of the rigid body and access ports to provide for relative angular movement of at least one of the access ports to provide flexibility for positioning surgical instruments introduced through the access ports.2. The access device as recited in claim 1 , wherein the flexible support includes at least one flexible bellow.3. The access device as recited in claim 2 , wherein the at least one flexible bellow includes at least one of a rubber material claim 2 , a rubber-like material claim 2 , and/or a VersaFlex material.4. The access device as recited in claim 2 , wherein the rigid body includes a rigid top body and a rigid bellow support claim 2 , wherein the rigid top body and the rigid bellow support compress an outer peripheral edge of the flexible support ...

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25-04-2019 дата публикации

Medical devices for treatment of cancer with electric fields

Номер: US20190117969A1
Принадлежит: Cardiac Pacemakers Inc

Embodiments herein include medical devices and methods for using the same to treat cancerous tumors within a bodily tissue. In an embodiment, a medical device is included. The medical device can include an electric field generating circuit configured to generate one or more electric fields and control circuitry in communication with the electric field generating circuit. The control circuitry can be configured to control the generation of one or more electric fields from the electric field generating circuit. The control circuitry can cause the electric field generating circuit to deliver one or more electric fields at one or more frequencies selected from a range of between 10 kHz to 1 MHz to a cancerous tumor located within a bodily tissue. Other embodiments are also included herein.

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25-04-2019 дата публикации

ELECTRIC FIELD SHAPING LEADS FOR TREATMENT OF CANCER

Номер: US20190117970A1
Принадлежит:

Embodiments herein relate to medical devices including electric field shaping leads and methods for using the same to treat cancerous tumors within a bodily tissue. In an embodiment, an implantable lead for a cancer treatment system is disclosed. The lead can include a lead body having a proximal end and a distal end, where the lead body can define a lumen. The lead can also include a paddle disposed at the distal end of the lead body, the paddle having a width that is greater than a width of the lead body. The paddle can include one or more electrodes disposed on the paddle and one or more electrical conductors disposed within the lumen of the lead body to provide electrical communication between the one or more electrodes and the proximal end of the lead body. Other embodiments are also included herein. 1. A lead for a cancer treatment system comprising:a lead body having a proximal end and a distal end, the lead body comprisingone or more conductors disposed within the lead body and providing electrical communication; andan insulating material disposed over the one or more conductors, the insulating material comprising one or more first zones and one or more second zones, wherein the thickness of the insulating material over the first zones is greater than the thickness of the insulating material over the second zones, the second zones functioning as electrodes to generate one or more electric fields at or near the site of a cancerous tumor.2. The lead of claim 1 , further comprising an insulating flange disposed circumferentially on an exterior surface of the lead body claim 1 , the insulating flange comprising an insulating material and interrupting a direct electrical conduction path between two second zones.3. The lead of claim 2 , wherein the direct electrical conduction path is a straight-line electrical conduction path.4. The lead of claim 1 , wherein at the site of each second zone claim 1 , the insulating material disposed asymmetrically in thickness ...

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25-04-2019 дата публикации

Volume-filling leads for treatment of cancer with electric fields

Номер: US20190117971A1
Принадлежит: Cardiac Pacemakers Inc

Embodiments herein relate to medical devices including volume filling leads and methods of use to treat cancerous tumors within a bodily tissue. In an embodiment, a lead for a cancer treatment system is described. The lead can include a lead body having a proximal end and a distal end, where the lead body can define a lumen. The lead can include an expandable lead head connected to the distal end of the lead body, where the lead head can be configured to be expanded between a first non-expanded position and a second expanded position in order to fill an intracorporeal void. The lead can include two or more electrodes disposed on an outer surface of the lead head and two or more electrical conductors configured to provide electrical communication between the two or more electrodes and the proximal end of the lead body. Other embodiments are also included herein.

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25-04-2019 дата публикации

MEDICAL DEVICES FOR CANCER THERAPY WITH ELECTRIC FIELD SHAPING ELEMENTS

Номер: US20190117972A1
Принадлежит:

Embodiments herein relate to medical device systems including electric field shaping elements for use in treating cancerous tumors within a bodily tissue. In an embodiment, a medical device system for treating a cancerous tumor is described. The medical device system can include one or more electric field generating electrodes and an electric field shaping element configured to be implanted along with the one or more electric field generating electrodes. The electric field shaping element can be made from a material that alters the spatial area of tissue exposed to the electric field. Other embodiments are also included herein. 1. A medical device system for treating a cancerous tumor comprising:one or more electric field generating electrodes; andan electric field shaping element configured to be implanted along with the one or more electric field generating electrodes, the electric field shaping element comprising a material that alters the spatial area of tissue exposed to the electric field.2. The medical device system of claim 1 , further comprising a lead claim 1 , wherein the one or more electric field generating electrodes are disposed on the lead.3. The medical device system of claim 2 , the lead comprising a lead body having a proximal end and a distal end claim 2 , the lead body comprising one or more conductors passing through the lead body and providing electrical communication between the one or more electric field generating electrodes and the proximal end of the lead body.4. The medical device system of claim 1 , wherein the electric field shaping element is physically separate from the lead and the one or more electric field generating electrodes.5. The medical device system of claim 1 , the electric field shaping element comprising a material that shields an electrical field.6. The medical device system of claim 1 , the electric field shaping element configured to be positioned between a cancerous tumor and an adjacent non-cancerous tissue or ...

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25-04-2019 дата публикации

Electric field cancer therapy devices with feedback mechanisms and diagnostics

Номер: US20190117973A1
Принадлежит: Cardiac Pacemakers Inc

Embodiments herein relate to medical device systems including electric field shaping elements for use in treating cancerous tumors within a bodily tissue. In an embodiment, a method for treating a cancerous tumor is provided. The method can include implanting one or more electrodes within a patient and measuring the impedance of tissue within the patient along a vector passing through or near a cancerous tumor. The method can also include administering an electric field to the cancerous tumor of the patient based on the measured impedance. Other embodiments are also included herein.

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10-05-2018 дата публикации

IMPLANTABLE MEDICAL DEVICE FOR ATRIAL DEPLOYMENT

Номер: US20180126179A1
Принадлежит: Cardiac Pacemakers, Inc.

An implantable medical device (IMD) may be deployed within a patient's right atrium at a location near a right atrial appendage of the patient's heart in order to pace the patient's heart and/or to sense electrical activity within the patient's heart. In some cases, an IMD may be implanted within the right atrial appendage. The IMD may include an expandable anchoring mechanism configured to secure the IMD in place. 1. A leadless cardiac pacemaker (LCP) , the LCP comprising:a power source;circuitry operatively coupled to the power source, the circuitry configured to pace a patient's heart and/or sense electrical activity of the patient's heart;a housing at least partially enclosing the circuitry and configured to be positioned within an atrium of the patient's heart;an anode electrode operatively coupled to the circuitry;a cathode electrode operatively coupled to the circuitry, the cathode electrode spaced from the anode electrode; andan expandable anchoring member secured relative to the housing, the expandable anchoring member having a collapsed configuration for delivery and an expanded configuration for securing the housing within the atrium of the patient's heart, with the cathode electrode in engagement with an atrium wall of the patient's heart.2. The LCP of claim 1 , wherein the expandable anchoring member is configured to engage an atrial appendage of the patient's heart in the expanded configuration.3. The LCP of claim 1 , wherein the expandable anchoring member comprises a plurality of struts that extend out from a central hub in the expanded configuration claim 1 , wherein the housing is secured to the central hub.4. The LCP of claim 3 , wherein the expandable anchoring member extends along a central axis from a first end to a second end claim 3 , and wherein in the expanded configuration the plurality of struts extend toward the central axis to the central hub at the first end and out further from the central axis at the second end.5. The LCP of claim 4 ...

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02-05-2019 дата публикации

STRUCTURAL DIFFUSION MEMBRANES FOR CHEMICAL SENSORS

Номер: US20190125228A1
Принадлежит:

Embodiments herein relate to implantable chemical sensors for detecting a physiological analyte and medical devices including the same. In an embodiment, an implantable medical device is included. The implantable medical device can include a chemical sensor configured to detect an ion concentration in a bodily fluid. The chemical sensor can include a sensing element. The sensing element can include an outer barrier layer forming a top, a bottom, and opposed sides of the sensing element and a structural reinforcing element contacting the outer barrier layer. The top of the outer barrier layer of the sensing element can include a polymeric matrix permeable to analytes. 1. An implantable medical device comprising: an outer barrier layer forming a top, a bottom, and opposed sides of the sensing element;', 'a structural reinforcing element contacting the outer barrier layer;', 'a polymeric matrix permeable to analytes.', 'the top of the outer barrier layer comprising'}], 'a sensing element, the sensing element comprising'}, 'a chemical sensor configured to detect an ion concentration in a bodily fluid, the chemical sensor comprising2. The implantable medical device of claim 1 , wherein the structural reinforcing element is disposed beneath claim 1 , within claim 1 , or on top of the top of the outer barrier layer.3. The implantable medical device of claim 1 , the structural reinforcing element comprising polyester claim 1 , polyurethane claim 1 , polyethylene claim 1 , polypropylene claim 1 , nylon claim 1 , sintered titanium claim 1 , deep reactive-ion etched silicon claim 1 , sintered stainless steel claim 1 , sintered silica claim 1 , liquid crystal claim 1 , glass claim 1 , borosilicate glass claim 1 , or mixtures or derivatives thereof.4. The implantable medical device of claim 1 , the structural reinforcing element selected from the group comprising a woven material claim 1 , a non-woven material claim 1 , electrospun material claim 1 , and randomly woven material. ...

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02-05-2019 дата публикации

POLYMERIC FEED-THRU FOR CHRONIC IMPLANTABLE DEVICES

Номер: US20190126052A1
Принадлежит:

A method of making a feed-thru connector assembly includes inserting a conductor within an opening within a housing of a pulse generator and dispensing a sealant in a gap between the conductor and portions of the housing adjacent to the conductor that define the opening of the housing and curing the sealant to form a seal comprising a polyisobutylene cross-linked network. 1. A method of making a feed-thru connector assembly for a pulse generator , the method comprising:inserting a conductor within an opening within a housing of the pulse generator, the conductor being coupled to electronics housed within the housing;dispensing a sealant in a gap between the conductor and portions of the housing adjacent to the conductor that define the opening of the housing; andcuring the sealant to form a seal comprising a polyisobutylene cross-linked network, wherein the seal is adapted to create a hermetic seal for the feed-thru connector assembly.2. The method of claim 1 , further comprising plasma treating at least a portion of a surface of the conductor before inserting the conductor within the opening within the housing.3. The method of claim 1 , further comprising priming at least a portion of the conductor with a primer comprising an epoxy functional silane or a methylene diphenyl diisocyanate (MDI).4. The method of claim 1 , further comprising forming the polyisobutylene cross-linked network that comprises:reacting a telechelic polyisobutylene did and a diisocyanate to form a diisocyanate derivative; andreacting the diisocyanate derivative with a crosslinking initiator to form the polyisobutylene cross-linked network.5. The method of claim 1 , wherein the diisocyanate is 4 claim 1 ,4′-methylenephenyl diisocyanate (MDI) and the crosslinking initiator is pentaerythritol.6. The method of claim 1 , further comprising forming the polyisobutylene cross-linked network that comprises:reacting a diisocyanate with a polyol or a polyamine to form a polyisocyanate; andreacting the ...

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23-04-2020 дата публикации

IMPLANTABLE DEVICE HEADER AND METHOD

Номер: US20200121933A1
Принадлежит:

Systems and methods for implantable medical devices and headers are described. In an example, an implantable medical device includes a device container including an electronic module within the device container. A modular header core includes a first core module including a first bore hole portion of a first bore hole, the first bore hole portion configured to couple a first electrical component with the electronic module. A second core module includes a second bore hole portion of a second bore hole different than the first bore hole, the second bore hole portion configured to couple a second electrical component with the electronic module. The first core module is detachably engaged with the second core module. A header shell is disposed around the modular header core and attached to the device container. 120.-. (canceled)21. An implantable medical device comprising:a metallic device container having a surface, the device container including an electronic module within the metallic device container, wherein a portion of the surface of the metallic device container includes a textured surface having an area root mean square value between 3.05 micrometers (μm) and 10.2 μm;a header core; anda header shell disposed around the header core and attached to the device container forming an interface with at least a portion of the textured surface.22. The implantable medical device of claim 21 , wherein the textured surface includes a laser treated surface including a number of substantially spherical particles.23. The implantable medical device of claim 21 , wherein the header shell is a thermoset polymer.24. The implantable medical device of claim 23 , wherein the thermoset polymer is an epoxy.25. The implantable medical device of claim 21 , wherein the area root mean square value of the textured surface is between 3.81 μm and 8.89 μm.26. The implantable medical device of claim 21 , wherein the area root mean square value of the textured surface is between 3.30 μm and 3. ...

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17-05-2018 дата публикации

MULTIMODAL SURGICAL GAS DELIVERY SYSTEM CONFIGURED TO MAINTAIN STABLE BODY CAVITY PRESSURE WHEN SUCTION IS USED IN THE BODY CAVITY

Номер: US20180133416A1
Принадлежит:

A system is disclosed for delivering insufflation gas to a body cavity of a patient during a surgical procedure, which includes an insufflator for delivering a flow of insufflation gas to the body cavity of the patient through a flow path that communicates with a pneumatically sealed trocar, a flow meter for measuring an amount of gas that has been removed from the body cavity by use of a suction device, and a controller operatively connected to the flow meter for receiving a flow measurement from the flow meter to determine when the suction device is in use and an amount of insufflation gas needed to be delivered to the body cavity by the insufflator to compensate for the gas removed from the body cavity by the suction device. 1. A system for delivering insufflation gas to a body cavity of a patient during a surgical procedure , comprising:a) an insufflator for delivering insufflation gas to the body cavity of a patient through a flow path;b) a suction device connected to a vacuum source for removing solid, liquids and gases from the body cavity during the surgical procedure;c) a conduit providing communication between the vacuum source and the suction device;d) a flow meter communicating with the conduit for measuring an amount of gas flowing through the conduit that has been removed from the body cavity by use of the suction device; ande) a controller operatively connected to the flow meter for receiving a flow measurement from the flow meter to determine when the suction device is in use and an amount of insufflation gas needed to be delivered to the body cavity by the insufflator to compensate for the gas removed from the body cavity by the suction device.2. The system of claim 1 , wherein the controller is adapted and configured to cause the insufflator to increase the flow of insufflation gas through the flow path to compensate for the gas removed from the body cavity by the suction device.3. The system of claim 1 , wherein the controller is adapted and ...

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26-05-2016 дата публикации

Wound Dressing Garment

Номер: US20160143787A1
Принадлежит: ROAR CONSULTANTS

A wound dressing garment is provided. The wound dressing garment includes a wearable garment including a portion having a hole configured to receive a wound dressing therein in combination with the wound dressing. The wound dressing includes a border connecting the wound dressing to the wearable garment where the border extends around the perimeter of the hole to locate the wound dressing therein. The wound dressing may include one or more additional layers including a hydrogel layer. A method for treating wound or preventing bed sores using the wound dressing garment is also provided. 1a wearable garment including a portion having a hole; a border connecting the wound dressing to the wearable garment, the border extending around a perimeter of the hole to locate the wound dressing therein, the border defining a central opening;', 'a hydrogel layer located at the central opening;', 'a mesh layer disposed below the hydrogel layer, the mesh layer configured to allow dispersal of the hydrogel layer; and', 'an adhesive layer to secure the mesh layer to the hydrogel layer and the border, the adhesive layer being located between the hydrogel layer and the mesh layer, the adhesive layer allowing the hydrogel layer to be activated through the mesh layer., 'a wound dressing located in the hole, the wound dressing including. A wound dressing garment comprising: This application is a Continuation of U.S. application Ser. No. 13/649,981, filed Oct. 11, 2012, which claims the benefit of U.S. Provisional Application No. 61/546,272, filed Oct. 12, 2011, which are herein incorporated by reference in their entireties.1. Field of the InventionThe present invention relates generally to a wound dressing incorporated into a garment for covering wounds on human and animal skin or to prevent wounds from developing on human and animal skin. More particularly, the present invention relates to a moisture vapor permeable dressing that is affixed or otherwise attached to a garment to ...

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24-05-2018 дата публикации

IMPLANTABLE MEDICAL DEVICE WITH RECHARGE COIL

Номер: US20180140850A1
Принадлежит: Cardiac Pacemakers, Inc.

Implantable medical device (IMD) such as leadless cardiac pacemakers may include a rechargeable power source. In some cases, the IMD may include a plurality of receiving coils that may capture a non-radiative near-field energy and then convert the near-field energy into electrical energy that may be used to recharge the rechargeable power source. Accordingly, since the rechargeable power source does not have to maintain sufficient energy stores in a single charge for the entire expected life of the IMD, the power source itself and thus the IMD, may be made smaller while still meeting device longevity expectations. 1. An implantable medical device (IMD) configured to be implanted within a patient , the IMD comprising:a housing configured for trans-catheter deployment;a plurality of electrodes exposed external to the housing;therapeutic circuitry disposed within the housing, the therapeutic circuitry operatively coupled to the plurality of electrodes and configured to sense one or more signals via one or more of the plurality of electrodes and/or to stimulate tissue via one or more of the plurality of electrodes;a rechargeable power source disposed within the housing and configured to power the therapeutic circuitry;a plurality of receiving coils configured to receive non-radiative near-field energy through the patient's body, wherein each of the plurality of receiving coils has a primary capture axis along which a maximum amount of non-radiative near-field energy is captured, and wherein at least one of the plurality of receiving coils has a primary capture axis that is non-parallel with the primary capture axis of another one of the plurality of receiving coils; andcharging circuitry operatively coupled with the plurality of receiving coils and the rechargeable power source, the charging circuitry configured to use the non-radiative near-field energy received via the plurality of receiving coils to charge the rechargeable power source.2. The IMD of claim 1 , wherein ...

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24-05-2018 дата публикации

WIRELESS RE-CHARGE OF AN IMPLANTABLE MEDICAL DEVICE

Номер: US20180140851A1
Принадлежит: Cardiac Pacemakers, Inc.

Near-field energy transmitters for charging a rechargeable power source of an implantable medical device (IMD). In some cases, the transmitter may include an output driver that may drive a transmit coil such that near-field energy is transmitted to the IMD at a determined frequency. In some cases, the IMD may include a receiving coil that may capture the near-field energy and then convert the near-field energy into electrical energy that may be used to recharge the rechargeable power source. Since the rechargeable power source does not have to maintain sufficient energy stores in a single charge for the entire expected life of the IMD, the power source itself and thus the IMD may be made smaller while still meeting device longevity requirements. 1. A near-field energy transmitter for charging an implantable medical device (IMD) , the transmitter comprising:a transmit coil configured to transmit near-field energy to the IMD;an output driver for driving the transmit coil so that the transmit coil transmits the near-field energy at a transmit frequency, wherein the transmit frequency is adjustable;a monitor operatively coupled to the output driver for detecting a transmit power of the transmitted near-field energy; cause the output driver to adjust the transmit frequency of the near-field energy across two or more transmit frequencies;', 'identify the transmit power of the near-field energy at each of the two or more transmit frequencies using the monitor;', 'select the transmit frequency of the two or more transmit frequencies that results in a transmit power that has a predetermined characteristic; and', 'set the transmit frequency of the output driver to the selected transmit frequency., 'a controller operatively coupled to the output driver and the monitor, the controller configured to2. The near-field energy transmitter of claim 1 , wherein the predetermined characteristic of the transmit power is that the transmit power is the maximum transmit power identified ...

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24-05-2018 дата публикации

CATHETER AND LEADLESS CARDIAC DEVICES INCLUDING ELECTRICAL PATHWAY BARRIER

Номер: US20180140855A1
Принадлежит: Cardiac Pacemakers, Inc.

Catheter and implantable leadless pacing devices, systems, and methods utilizing catheters and implantable leadless pacing devices are disclosed. An example catheter system may include a holding structure extending distally from a tubular member. An implantable device, such a leadless pacing device, may be located within a cavity of the holding structure and an electrical barrier may be located within the holding structure at a location between a proximal electrode and a distal electrode of the implantable device. The electrical barrier may inhibit electrical signals of the implantable device from traveling within the holding structure between the proximal electrode and the distal electrode of the implantable device. The holding structure may include one or more electrical ports adjacent the proximal end of the holding structure and adjacent or proximal of the proximal electrode of the implantable device. 1. A catheter system for carrying an implantable leadless pacing device , the catheter system comprising:a tubular member including a lumen extending from a proximal end to a distal end thereof;a tubular distal holding structure extending distally of the distal end of the tubular member, the tubular distal holding structure defining a cavity;a leadless pacing device located at least partially within the cavity, the leadless pacing device having a proximal electrode and a distal electrode; andan electrical barrier at an axial location between the proximal electrode and the distal electrode of the leadless pacing device, andwherein the electrical barrier inhibits electrical signals of the leadless pacing device from traveling within the tubular distal holding structure between the proximal electrode of the leadless pacing device and the distal electrode of the leadless pacing device.2. The catheter system of claim 1 , further comprising:an electrical port extending through the tubular distal holding structure at a location proximal of the proximal electrode of the ...

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30-04-2020 дата публикации

SYSTEMS AND METHODS FOR ONLINE VEHICLE AUCTIONS

Номер: US20200134709A1
Принадлежит:

A method for auctioning vehicles online where bids are evaluated against auction conditions. 1. A method for auctioning vehicles online comprising:providing initial auction conditions, said initial auction conditions include auction time and bid increment;receiving a bid;evaluating said bid against said initial auction conditions;determining an auction winner, wherein said auction winner exists when said bid meets said initial auction condition, wherein said auction winner is absent when said bid does not meet said initial auction condition.2. The method of wherein said bid is a full payment bid.3. The method of wherein said bid is a bid by payment bid.4. The method of wherein said bid is a monthly payment bid. The present invention claims the benefit of U.S. Provisional Patent Application Ser. No. 62/750,586, filed Oct. 25, 2018, titled “Systems and Methods for Online Vehicle Auctions,” the contents of which are hereby incorporated by reference as if set fully herein.The present relates generally to online auctions and more particularly to online auctions having multiple bidding options.When consumers are in the market for purchasing a new or used vehicle, a major concern is that the purchase price is too high or that their negotiated purchase price could have been better, thus the feeling of buyer's remorse is commonplace post purchase when buying a vehicle from an auto dealer because buyers never know if they paid a fair price. Vehicle auctions are one avenue for consumers to purchase a vehicle without the need to enter into a price negotiation and retain a sense of control and transparency in the vehicle buying process. A consumer must be savvy in order to bid smartly and would like to have flexibility and choice in the way they place bids.On the other side, a vehicle dealership must manage vehicle inventory carefully in order to control costs and maximize profit. If, for example, a used car sits on a dealer lot for months prior to purchase, costs of capital, ...

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16-05-2019 дата публикации

COMMUNICATIONS IN A MEDICAL DEVICE SYSTEM WITH LINK QUALITY ASSESSMENT

Номер: US20190143130A1
Принадлежит: Cardiac Pacemakers, Inc.

Methods and devices for testing and configuring implantable medical device systems. A first medical device and a second medical device communicate with one another using test signals configured to provide data related to the quality of the communication signal to facilitate optimization of the communication approach. Some methods may be performed during surgery to implant one of the medical devices to ensure adequate communication availability. 1. A method of configuring communication between implantable medical devices comprising:in a first medical device having a plurality of electrodes configured for outputting a conducted signal, generating a first conducted signal using a selected pair of electrodes;in a second medical device, receiving and analyzing the first conducted signal;in the second medical device, communicating a second signal related to an outcome of the analysis of the first conducted signal while the first conducted signal is being received.2. A method as in further comprising receiving the second signal in the first medical device while the first conducted signal is still being generated.3. The method of wherein the second signal is a conducted signal received by the first medical device using a different pair of electrodes than the pair used for generating the first conducted signal.4. The method of further comprising receiving the second signal with an external device configured for communication with at least one of the first medical device and the second medical device.5. The method of wherein:the second medical device analyzes the first conducted signal and calculates communication metrics of the first conducted signal as received by the second medical device;the second signal encodes data related to the communication metrics of the first conducted signal as received by the second medical device; andthe external device is configured to provide real time feedback to a user related to the communication metrics.6. The method of wherein the ...

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23-05-2019 дата публикации

SYSTEM AND METHOD FOR CONTROLLING THE PERFORMANCE OF A PNEUMATICALLY SEALED TROCAR

Номер: US20190150981A1
Принадлежит:

A system and method is disclosed for controlling the performance of a pneumatically sealed trocar, wherein the system includes a controller for delivering variable DC voltage to a DC motor, a DC motor operatively connected to the controller for driving a pump operatively connected to a pneumatically sealed trocar, a pump driven by the DC motor for circulating pressurized gas through the pneumatically sealed trocar, and a sensor for sensing pressure and flow parameters between the pump and the pneumatically sealed trocar to provide a feedback control signal to the controller so that the controller can vary the voltage delivered to the DC motor to affect the output pressure and flow of the pump during a laparoscopic surgical procedure. 1. A system for controlling the performance range of a pneumatically sealed trocar , comprising:a) a controller for delivering variable DC voltage to a DC motor;b) a DC motor operatively connected to the controller for driving a pump operatively connected to a pneumatically sealed trocar;c) a pump driven by the DC motor for circulating pressurized gas through the pneumatically sealed trocar; andd) a sensor for sensing pressure and/or flow parameters between the pump and the trocar to provide a feedback control signal to the controller so that the controller can vary the voltage delivered to the DC motor to affect the output pressure and/or flow of the pump during a surgical procedure.2. A system as recited in claim 1 , further comprising an AC input voltage source and an AC-DC converter for supplying DC voltage to the controller.3. A system as recited in claim 1 , further comprising a pneumatically sealed trocar connected to the pump for providing pneumatically sealed access to a body cavity of a patient during the surgical procedure.4. A system for controlling the performance range of a pneumatically sealed trocar claim 1 , comprising:a) a controller for delivering variable DC voltage to at least one DC motor;b) at least one DC motor ...

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11-09-2014 дата публикации

CONNECTOR BLOCKS FOR A HEADER OF AN IMPLANTABLE DEVICE

Номер: US20140256184A1
Принадлежит: Cardiac Pacemakers, Inc.

An apparatus includes an implantable housing, a header mounted to the implantable housing and including a connector block cavity, and a connector block located within the connector block cavity, the connector block including a plastic housing portion, a coil spring, and a metallic termination member connected to the coil spring and exposed outside the plastic housing portion.

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06-06-2019 дата публикации

MULTIMODAL ANALYTE SENSOR OPTOELECTRONIC INTERFACE

Номер: US20190167112A1
Принадлежит:

Embodiments herein relate to optoelectronic interfaces for multimode analyte sensors for use with implantable medical devices. In an embodiment, an implantable medical device is included. The implantable medical device can include a first chemical sensor including an optical excitation assembly comprising a first visible spectrum emitter, a second visible spectrum emitter, and at least one of a near-infrared (NIR) emitter and an ultraviolet emitter. The first chemical sensor can also include an optical detection assembly including a colorimetric response detector, and a photoluminescent response detector. The first chemical sensor can also include a multimode sensing element including a colorimetric response element specific for a first chemical analyte, a photoluminescent response element specific for a second chemical analyte. Other embodiments are also included herein. 1. An implantable medical device comprising: 'an optical excitation assembly comprising', 'a first chemical sensor comprising'}a first visible spectrum emitter;a second visible spectrum emitter; and 'an optical detection assembly comprising', 'at least one of a near-infrared (NIR) emitter and an ultraviolet emitter;'}a colorimetric response detector; anda photoluminescent response detector; anda multimode sensing element comprising:a colorimetric response element specific for a first chemical analyte;a photoluminescent response element specific for a second chemical analyte.2. The implantable medical device of claim 1 , further comprising a low-pass optical filter disposed over or in the photoluminescent response detector.3. The implantable medical device of claim 1 , wherein the colorimetric response detector and the photoluminescent response detector are integrated as a single unit.4. The implantable medical device of claim 1 , wherein the colorimetric response detector and the photoluminescent response detector are separate units.5. The implantable medical device of claim 1 , the multimode ...

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06-06-2019 дата публикации

MULTIMODAL ANALYTE SENSORS FOR MEDICAL DEVICES

Номер: US20190167162A1
Принадлежит:

Embodiments herein relate to implantable multimode analyte sensors and medical devices including the same. In an embodiment, an implantable medical device is included having an optical excitation assembly, an optical detection assembly and a multimode sensing element. The multimode sensing element can include a colorimetric response element specific for a first chemical analyte and a photoluminescent response element specific for a second chemical analyte. Other embodiments are also included herein. 1. An implantable medical device comprising:an optical excitation assembly;an optical detection assembly; anda multimode sensing element comprising:a colorimetric response element specific for a first chemical analyte;a photoluminescent response element specific for a second chemical analyte.2. The implantable medical device of claim 1 , wherein the photoluminescent response element is fluorescent.3. The implantable medical device of claim 1 , wherein the photoluminescent response element is phosphorescent.4. The implantable medical device of claim 1 , wherein the colorimetric response element is specific for potassium ion.5. The implantable medical device of claim 1 , wherein the photoluminescent response element is specific for glucose.6. The implantable medical device of claim 1 , the multimode sensing element comprisingan outer barrier layer forming a top, a bottom, and opposed sides of the sensing element;the outer barrier layer defining an interior volume;wherein the colorimetric response element and the photoluminescent response element are both disposed throughout the interior volume.7. The implantable medical device of claim 1 , the multimode sensing element comprisingan outer barrier layer forming a top, a bottom, and opposed sides of the sensing element;the outer barrier layer defining an interior volume; andpolymeric beads disposed within the interior volume;wherein the colorimetric response element and the photoluminescent response element are both disposed ...

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06-06-2019 дата публикации

Methods and systems for detecting atrial contraction timing fiducials during ventricular filling from a ventricularly implanted leadless cardiac pacemaker

Номер: US20190167972A1
Принадлежит: Cardiac Pacemakers Inc

A ventricularly implantable medical device that includes a sensing module that is configured to detect an artifact during ventricular filling and to identify an atrial event based at least on part on the detected artifact. Control circuitry of the implantable medical device is configured to deliver a ventricular pacing therapy to a patient's heart, wherein the ventricular pacing therapy is time dependent, at least in part, on the identified atrial event.

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06-06-2019 дата публикации

LEADLESS CARDIAC PACEMAKER WITH REVERSIONARY BEHAVIOR

Номер: US20190167991A1
Принадлежит: Cardiac Pacemakers, Inc.

A ventricularly implantable medical device that includes a sensing module that is configured to detect an atrial fiducial and identify an atrial contraction based at least on part on the detected atrial fiducial. Control circuitry in the implantable medical device is configured to deliver a ventricular pacing therapy to a patient's heart based at least in part on the identified atrial contraction, and can automatically switch or revert the ventricular pacing therapies on the fly. 1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to deliver pacing therapy to a patient's heart , the LCP comprising:a housing;a first electrode secured relative to the housing and exposed to the environment outside of the housing;a second electrode secured relative to the housing and exposed to the environment outside of the housing;a sensing module disposed within the housing and responsive to the environment outside of the housing, the sensing module configured to detect one or more atrial fiducials that are indicative of an atrial contraction; track the one or more atrial fiducials over a plurality of cardiac cycles;', "deliver a plurality of different ventricular pacing therapies to the patient's heart via the first electrode and the second electrode, wherein the control module selects which ventricular pacing therapy to deliver based, at least in part, on one or more of the tracked atrial fiducials."], 'a control module operatively coupled to the first electrode, the second electrode, and the sensing module, the control module is configured to2. The LCP of claim 1 , wherein the plurality of different ventricular pacing therapies comprise two or more of VDD claim 1 , VDDR claim 1 , VVI claim 1 , VVIR claim 1 , VOO and VOOR.3. The LCP of claim 1 , wherein the plurality of different ventricular pacing therapies comprise a first ventricular pacing therapy having a first pacing rate and a second ventricular pacing therapy having a second pacing rate different ...

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06-06-2019 дата публикации

METHODS AND SYSTEMS FOR DETECTING ATRIAL CONTRACTION TIMING FIDUCIALS WITHIN A SEARCH WINDOW FROM A VENTRICULARLY IMPLANTED LEADLESS CARDIAC PACEMAKER

Номер: US20190168008A1
Принадлежит: Cardiac Pacemakers, Inc.

A ventricularly implantable medical device that includes a sensing module that is configured to identify a search window of time within a cardiac cycle to search for an atrial artifact. Control circuitry in the ventricular implantable medical device is configured to deliver a ventricular pacing therapy to a patient's heart, wherein the ventricular pacing therapy is time dependent, at least in part, on an atrial event identified in the search window of time. 1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to deliver pacing therapy to a ventricle of a patient's heart , the LCP comprising:a housing;a first electrode secured relative to the housing and exposed to the environment outside of the housing;a second electrode secured relative to the housing and exposed to the environment outside of the housing;a sensing module secured relative to the housing and responsive to the environment outside of the housing, the sensing module including at least two of a pressure measurement module, an acoustic measurement module, an acceleration measurement module, and an electrogram measurement module; identify a window of time during each of one or more cardiac cycles, wherein the window of time has a duration that is less than an entire cardiac cycle;', "process information gathered during the window of time by at least one of the two or more measurement modules to identify an atrial event of the patient's heart during a cardiac cycle; and", "deliver a ventricular pacing pulse to the patient's heart via the first electrode and the second electrode, wherein the ventricular pacing pulse is delivered at a time that is based, at least in part, on the identified atrial event."], 'a control module operatively coupled to the first electrode, the second electrode, and the sensing module, the control module is configured to2. The LCP of claim 1 , wherein the sensing module includes a pressure measurement module and at least one of an acoustic measurement ...

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16-07-2015 дата публикации

SYSTEMS AND METHODS FOR TREATING CARDIAC ARRHYTHMIAS

Номер: US20150196756A1
Принадлежит:

Systems and methods for coordinating treatment of abnormal heart activity using multiple implanted devices within a patient. In one example, abnormal heart activity may be sensed by a medical device system. One of the devices of the system may determine to deliver anti-tachycardia pacing therapy to the heart of the patient, and may communicate an instruction to another of the devices of the medical device system to deliver anti-tachycardia pacing (ATP) therapy to the heart. The receiving medical device may then deliver ATP therapy to the heart of the patient. 1. A method for delivering anti-tachycardia pacing therapy to a heart of a patient , the method comprising:in a first one of a plurality of implantable medical devices, determining to deliver anti-tachycardia pacing therapy to the heart of the patient;communicating a message from the first one of the plurality of implantable medical devices to a second one of the plurality of implantable medical devices, the message instructing the second one of the plurality of implantable medical devices to deliver anti-tachycardia pacing therapy to the heart; andin response to receiving the message, the second one of the plurality of implantable medical devices delivering anti-tachycardia pacing therapy to the heart of the patient.2. The method of claim 1 , wherein the message is a trigger.3. The method of claim 1 , wherein the first one of the plurality of implantable medical devices comprises a subcutaneous implantable cardioverter-defibrillator (SICD) claim 1 , and the second one of the plurality of implantable medical devices comprises a leadless pacemaker (LCP).4. The method of claim 1 , wherein delivering anti-tachycardia pacing therapy by the second one of the plurality of implantable medical devices comprises delivering a single electrical stimulation pulse by the second one of the plurality of implantable medical devices in response to the received message to deliver anti-tachycardia pacing therapy.5. The method of ...

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16-07-2015 дата публикации

COMMUNICATION OF THERAPY ACTIVITY OF A FIRST IMPLANTABLE MEDICAL DEVICE TO ANOTHER IMPLANTABLE MEDICAL DEVICE

Номер: US20150196757A1
Принадлежит:

Cardiac activity of the heart can be sensed using, for example, one or more leadless cardiac pacemakers (LCPs) that are implanted in a close proximity to the heart. Sensing cardiac activity by the one or more leadless cardiac pacemakers (LCPs) can help the system in determining an occurrence of cardiac arrhythmia. For treatment purposes, electrical stimulation therapy, for example anti-tachyarrhythmia pacing (ATP) therapy, can be delivered by at least one of the devices of the system. Such therapy can help treat the detected cardiac arrhythmia. In some instances, one of the leadless cardiac pacemakers can instruct one or more of the other devices to assist in providing pacing therapy. In some instances, one of the leadless cardiac pacemakers can instruct one or more of the other devices to temporarily stop providing therapy or to simply shut down while another device provides therapy. 1. A method for delivering anti-tachycardia pacing therapy to a heart of a patient , the method comprising:delivering an anti-tachycardia pacing therapy to the heart of the patient using a first one of a plurality of implantable medical devices; andcommunicating a message from the first one of the plurality of implantable medical devices to at least a second one of the plurality of implantable medical devices before and/or during delivery of the anti-tachycardia pacing therapy.2. The method of claim 1 , wherein the first one of the plurality of implantable medical devices is a leadless cardiac pacemaker (LCP).3. The method of claim 2 , wherein the second one of the plurality of implantable medical devices is a leadless cardiac pacemaker (LCP).4. The method of claim 2 , wherein the second one of the plurality of implantable medical devices is a subcutaneous implantable cardioverter-defibrillator (SICD).5. The method of claim 2 , wherein the first one of the plurality of implantable medical devices is configured to deliver the anti-tachycardia pacing therapy to a ventricle of the patient ...

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16-07-2015 дата публикации

SYSTEMS AND METHODS FOR DETECTING CARDIAC ARRHYTHMIAS

Номер: US20150196758A1
Принадлежит:

Systems and methods for coordinating detection and/or treatment of abnormal heart activity using multiple implanted devices within a patient. In one example, cardiac activity may be sensed by two or more medical device, including a leadless cardiac pacemaker. Cardiac activity sensed by one of the implanted devices may be communicated to another one of the implanted devices. Abnormal heart activity may then be determined based on the cardiac activity of both of the medical device. 1. A method of identifying a tachyarrhythmia of a heart of a patient , the method comprising:sensing cardiac activity by a medical device;sensing cardiac activity by a first leadless cardiac pacemaker, wherein the first leadless cardiac pacemaker is spaced from the medical device and communicatively coupled to the medical device via a communication pathway that includes the body of the patient; anddetermining if a tachyarrhythmia is occurring based, at least in part, on both the cardiac activity sensed by the medical device and the cardiac activity sensed by the first leadless cardiac pacemaker.2. The method of claim 1 , wherein the medical device comprises a second leadless cardiac pacemaker claim 1 , and wherein the second leadless cardiac pacemaker is implanted at an atrium of the heart and the first leadless cardiac pacemaker is implanted at a ventricle of the heart.3. The method of claim 1 , wherein the medical device comprises a second leadless cardiac pacemaker claim 1 , and wherein the second leadless cardiac pacemaker is implanted at a left ventricle of the heart and the first leadless cardiac pacemaker is implanted at a right ventricle of the heart.4. The method of claim 1 , wherein the medical device comprises a second leadless cardiac pacemaker claim 1 , and wherein the second leadless cardiac pacemaker is implanted on an endocardial surface of the heart and the first leadless cardiac pacemaker is implanted on an epicardial surface of the heart.5. The method of claim 1 , wherein ...

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