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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 23884. Отображено 100.
05-01-2012 дата публикации

Switching control device and manipulating part for a medical instrument

Номер: US20120004649A1
Автор: Uwe Schnitzler
Принадлежит: Erbe Elecktromedizin GmbH

A switching control device for a medical instrument such as an electrode used in HF surgery. The switching control device comprises a connection line, designed as a switching control module for controlling various electrical operating modes of the instrument with a three-dimensionally and pressure-tightly sealed housing that is resistant to sterilization temperatures, an actuating element and fixing means to be releasably mounted within or on a manipulating part of the instrument, and module contacting means for interacting with device- or instrument-contacting means that are connected to the connection line to perform a switching control function.

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Номер записи: 1
12-01-2012 дата публикации

Surgical apparatus

Номер: US20120010540A1
Автор: Shinya Masuda
Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP

A surgical apparatus includes an output mode switching section configured to selectively switch an output mode of a power supply main body, that can output the energy to a probe and a jaw, in accordance with a moving state of a movable member. The output mode switching section is configured to switch the output mode such that a bipolar mode in which the probe and the jaw are driven as high-frequency electrodes is set when the jaw is in a closed state with respect to the probe and a single output mode in which the energy is output from only the probe is set when the jaw is in an open state with respect to the probe.

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Номер записи: 2
02-02-2012 дата публикации

Ultrasound device for medical applications

Номер: US20120029352A1
Автор: Michael Clossen-Von Lanken Schulz
Принадлежит: SIEMENS AG

An ultrasound device for medical application has a transducer formed by a number of transducer elements. The transducer elements are carried on a flexible support that allows the transducer elements to be configured to an examination subject. A measurement device determines, for each transducer element, a distance or a rotation thereof with respect to a reference point. The reference point can be a point that is physically a part of the ultrasound device, or can be a virtual reference point.

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Номер записи: 3
02-02-2012 дата публикации

Sequential Activation RF Electrode Set for Renal Nerve Ablation

Номер: US20120029500A1
Автор: Mark L. Jenson
Принадлежит: Boston Scientific Scimed Inc

A catheter includes a flexible shaft having a length sufficient to access a patient's renal artery. A treatment element at the distal end of the shaft is dimensioned for deployment within the renal artery. The treatment element comprises a radially expandable structure configured to maintain positioning within the renal artery. A multiplicity of electrodes are spaced apart on the treatment element and configured for switchable activation and deactivation in a predetermined sequence to generate overlapping zones of heating directed at perivascular nerves of the renal artery. The overlapping heating zones comprise a distal zone associated with relatively high current densities at a distance from the treatment element sufficient to ablate the perivascular renal nerves and a proximal zone associated with current densities lower than those of the distal zone and insufficient to cause thermal injury to tissue of the renal artery adjacent the treatment element.

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Номер записи: 4
16-02-2012 дата публикации

Surgical access apparatus

Номер: US20120041271A1
Автор: David Farascioni, Skott Greenhalgh, Thomas Wenchell
Принадлежит: TYCO HEALTHCARE GROUP LP

An access apparatus for use during a surgical procedure to provide access to the interior of the body includes an access member defining a longitudinal axis and having a proximal end for being disposed at an exterior side of the body and a distal end for extending into the interior of the body. The access member has a bore therethrough dimensioned to permit passage of an object. A seal is disposed within the bore of the access member. The seal includes a fabric material and an elastomeric material, and defines an internal passageway dimensioned to form a substantial sealing relation with an object inserted therethrough.

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Номер записи: 5
08-03-2012 дата публикации

Method and system for ultrasound treatment with a multi-directional transducer

Номер: US20120059288A1
Автор: Michael H. Slayton, Peter G. Barthe
Принадлежит: Guided Therapy Systems LLC

A method and system for ultrasound treatment utilizing a multi-directional transducer to facilitate treatment, such as therapy and/or imaging or other tissue parameter monitoring, in two or more directions. In accordance with an exemplary embodiment, a multi-directional transducer comprises at least two transduction elements configured to provide for ultrasound energy, such as radiation, acoustical energy, heat energy, imaging, positional information and/or tissue parameter monitoring signals in two or more directions. The transduction elements can comprise various materials for providing ultrasound energy or radiation, such as piezoelectric materials, with and without matching layers. In addition, the transduction elements can be configured for substantially uniform, focused and/or defocused radiation patterns, as well as for single, multiple-element and/or multiple-element array configurations. In addition, an exemplary multi-directional transducer can comprise multiple elements, either side by side, stacked or in an array.

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Номер записи: 6
15-03-2012 дата публикации

Electrosurgical device to generate a plasma stream

Номер: US20120065635A1
Автор: Gregory A. Konesky
Принадлежит: Bovie Medical Corp

An electrosurgical device to generate a plasma stream and method to perform endoscopic or laparoscopic surgery within a patient's body. The electrosurgical device includes an electrode operatively coupled to an electrosurgical generator to receive electrical energy therefrom, the electrode being concentrically disposed within an inner noble gas conduit to form a plasma channel. An outer electronegative gas conduit is disposed in surrounding coaxial relation relative to the inner noble gas conduit to cooperatively form an electronegative gas channel therebetween such that the electrode heats the noble gas to at least partially ionize the noble gas to generate the plasma stream to be directed to the surgical site to perform the surgical procedure while the electronegative gas sustains the plasma stream at the surgical site and dilutes the noble gas adjacent the surgical site. An outer aspiration conduit may be provided to remove fluid and solid debris from the surgical site.

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Номер записи: 7
05-04-2012 дата публикации

Surgical instrument with jaw member

Номер: US20120083784A1
Автор: Aaron C. Voegele, Bingshi Wang, Chad P. Boudreaux, David K. Norvell, Gregory A. Trees, James R. Giordano, Jonathan T. Batross, Mark A. Davison, Scott B. Killinger
Принадлежит: Ethicon Endo Surgery Inc

A surgical instrument for supplying energy to tissue may comprise a handle, a trigger, an electrical input, and a shaft extending from the handle. The surgical instrument may comprise and end effector first and second tissue engaging surfaces that are slanted with respect to a transection plane. The end effector may, for example, have an electrode defining a V-shaped cross sectional profile. The end effector may comprise a plurality of raised surfaces that are received by a plurality of indentions when the end effector is in the closed position. The end effector may comprise a cutting member having a plurality of bands.

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Номер записи: 8
10-05-2012 дата публикации

Simultaneous ablation by multiple electrodes

Номер: US20120116386A1
Автор: Andres Claudio Altmann, Assaf Govari, Yaron Ephrath
Принадлежит: Biosense Webster Israel Ltd

Apparatus, including a current source which has a transformer having a primary winding coupled to receive input power. The transformer has a secondary winding having a first plurality of secondary taps configured to supply electrical power at an ablation frequency to an electrode in contact with body tissue. The issue has an impedance, and is ablated by the electrical power. The current source has a second plurality of capacitors. The apparatus also includes a controller which is configured to select one of the secondary taps and at least one of the capacitors in response to the impedance and the ablation frequency, and to connect the selected secondary tap to the selected at least one of the capacitors.

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Номер записи: 9
10-05-2012 дата публикации

Catheter with liquid-cooled control handle

Номер: US20120116393A1
Автор: Ariel Garcia, Arnold Tuason, Assaf Govari, Christopher Beeckler, Dean Ponzi, Eduardo Jimenez, Jeffrey W. Schultz, Mario Solis, Rogelio Plascencia, JR., Yaron Ephrath
Принадлежит: Biosense Webster Inc

An electrophysiologic catheter with an improved control handle is provided. The catheter includes a heat transfer assembly to better dissipate heat in the control handle. The heat transfer assembly includes a pump, a reservoir containing a coolant, a heat transfer member, and a coolant transport network transporting coolant between at least the reservoir and the heat transfer member. In one embodiment, the heat transfer member is located within the control handle as a heat exchanger on the circuit board to receive the coolant for transferring heat from the integrated circuits to the coolant. In another embodiment, the heat transfer member is located on the circuit board directly surrounding the integrated circuits to internally cool the integrated circuit within the control handle. A second heat transfer member is located outside of the control handle as a heat exchanger.

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Номер записи: 10
17-05-2012 дата публикации

Minimally Invasive Access for Renal Nerve Ablation

Номер: US20120123303A1
Автор: David Sogard, Mark L. Jenson, Scott Smith
Принадлежит: Boston Scientific Scimed Inc

An elongated flexible medical device is inserted into a patient's body via a natural orifice, and advanced through the natural orifice to a location proximate innervated tissue that influences renal sympathetic nerve activity. The medical device can be advanced into a body organ and to a location within the organ proximate the innervated tissue. The organ may comprise an organ of the gastrointestinal tract or urinary tract. The medical device may be advanced through and beyond an access hole in a wall of the organ, and situated at a location proximate the innervated tissue. One or both of imaging and ablation energy is delivered from a distal end of the medical device to the innervated tissue. Innervated renal tissue can be ablated using various forms of energy, including RF energy, ultrasound energy, optical energy, and thermal energy.

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Номер записи: 11
17-05-2012 дата публикации

Balloon catheter system

Номер: US20120123331A1
Автор: Shutaro Satake
Принадлежит: Japan Electel Inc

A balloon catheter system enables only a target site to be efficiently ablated, ensuring a balloon to be able to be brought into close contact with the target site in conformity to a shape of the target site. The balloon includes a contact portion that contacts the target site and a noncontact portion that does not contact the target site. A membrane thickness of the contact portion is thinner than that of the noncontact portion The target site that is in contact with the thin contact portion is selectively ablated, while the thick noncontact portion is less likely to exhibit a temperature increase. Hence, only the target portion is efficiently ablated.

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Номер записи: 12
17-05-2012 дата публикации

Methods and devices for controlling energy during ablation

Номер: US20120123400A1
Автор: Catherine R. Condie, David Francischelli, Jinback Hong
Принадлежит: MEDTRONIC INC

System and method for ablating tissue of a heart of a patient. The tissue is characterized, then a predetermined ablation procedure is selected based on the characterization, ablation energy is delivered according to procedure with the ablation device, and a temperature of the tissue and an impedance of the tissue are determined. Delivery of ablation energy is ceased at a time based, at least in part, on when at least one of an accumulated effective temperature of the tissue over time exceeds a thermal dose threshold and an accumulated effective energy of the tissue over time exceeds an effective energy threshold. Else, the ablation energy delivered is modified by adjusting the energy level based, at least in part, on at least one of the temperature being outside of a predetermined temperature range and the impedance being outside of an impedance range.

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Номер записи: 13
07-06-2012 дата публикации

Tracking system using field mapping

Номер: US20120143030A1
Автор: Doron Harlev, Rotem Eldar
Принадлежит: Rhythmia Medical Inc

In some aspects, a method includes (i) securing multiple sets of current injecting electrodes to an organ in a patient's body, (ii) causing current to flow among the multiple sets of current injecting electrodes to generate a field in the organ, (iii) in response to current flow caused by the multiple sets of current injecting electrodes, measuring the field at each of one or more additional electrodes, (iv) determining expected signal measurements of the field inside the organ using a pre-determined model of the field, and (v) determining a position of each of the one or more additional electrodes in the organ based on the measurements made by the additional electrodes and the determined expected signal measurements of the field.

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Номер записи: 14
14-06-2012 дата публикации

Bipolar medical devices for extracting tissue and methods therefor

Номер: US20120150179A1
Автор: Marc Feinberg, Mosaddeq Hossain
Принадлежит: Ethicon Inc

A bipolar medical device for extracting tissue including a handle, and an outer tube projecting from the handle, the outer tube extending along a longitudinal axis and including a proximal end connected with the housing and a distal end spaced from the proximal end. The medical device includes a split tube disposed within the outer tube, the split tube having a distal end including a first cutting element and an opposing second cutting element, a motor coupled with the split tube for selectively rotating the split tube and the first and second cutting elements about the longitudinal axis, and an electrosurgical generator coupled with the split tube, whereby the first cutting element is connectable with a first pole of the electrosurgical generator and the second element is connectable with a second pole of the electrosurgical generator for passing electrical current between the first and second cutting elements.

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Номер записи: 15
21-06-2012 дата публикации

System for controlling tissue ablation using temperature sensors

Номер: US20120157890A1
Автор: Andres Claudio Altmann, Assaf Govari, Yaron Ephrath
Принадлежит: Biosense Webster Israel Ltd

Body tissue ablation is carried out by inserting a probe into a body of a living subject, urging the probe into contact with a tissue in the body, generating energy at a power output level, and transmitting the generated energy into the tissue via the probe. While transmitting the generated energy the ablation is further carried out by determining a measured temperature of the tissue and a measured power level of the transmitted energy, and controlling the power output level responsively to a function of the measured temperature and the measured power level. Related apparatus for carrying out the ablation is also described.

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Номер записи: 16
21-06-2012 дата публикации

Gas-Enhanced Surgical Instrument with Mechanism for Cylinder Puncture

Номер: US20120157911A1
Автор: Kathy E. Rooks, Russell Hempstead
Принадлежит: TYCO HEALTHCARE GROUP LP

A surgical instrument for providing an ionized gas to a surgical site includes a receptacle for at least one cylinder of pressurized surgical gas and a frame having a port near the distal end for emitting the surgical gas. A passageway extending between the receptacle and the port delivers the surgical gas to the port. A puncture assembly for rupturing a seal on at least one cylinder to release the surgical gas into the passageway includes at least one bank for storing mechanical energy which may include at least one spring. An actuator is operable to actuate the at least one bank release the mechanical energy. At least one puncture pin is operatively coupled to the at least one bank such that energy released by the at least one bank is effective to move the at least one puncture pin relative to at least one cylinder to rupture the seal.

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Номер записи: 17
21-06-2012 дата публикации

Deflectable catheter constructed to inhibit component migration

Номер: US20120157915A1
Автор: Elizabeth Younger, Gary B. La Traille, John M. Hastings
Принадлежит: St Jude Medical Atrial Fibrillation Division Inc

A catheter includes a shaft having at least one lumen. The lumen comprises a longitudinally-extending trough defined by a longitudinally-extending recess, within which a component is disposed, and a longitudinally extending open edge. The lumen further comprises a longitudinally-extending channel defined by a longitudinally-extending cavity and by the open edge of the trough. A planarity wire is disposed within the cavity and is configured to close the open edge of the trough to within a pre-defined tolerance that is less than the size of the component to retain the component in the recess.

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Номер записи: 18
21-06-2012 дата публикации

Global endometrial ablation device

Номер: US20120157985A1
Автор: Lisa M. BALLOU, Melissa D. Caputo, Pajhand Iranitalab, Xiaodong Xiang
Принадлежит: Individual

An endometrial ablation apparatus is provided which includes an end member with a plurality of electrodes. The probe is attached to a controller that includes a multiplexer capable of activating each electrode individually or multiple electrodes simultaneously, such that each individual electrode may be energized separately in series to complete the ablation process. A method of performing ablation using such an apparatus is also provided.

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Номер записи: 19
21-06-2012 дата публикации

Tuned rf energy for selective treatment of atheroma and other target tissues and/or structures

Номер: US20120157988A1
Автор: Arthur G. Blanck, Corbett W. Stone, Michael F. Hoey, Raphael M. Michel, Tom A. Steinke
Принадлежит: Vessix Vascular Inc

A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring.

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Номер записи: 20
21-06-2012 дата публикации

Irrigated ablation electrode assemblies

Номер: US20120157990A1
Автор: Steven C. Christian
Принадлежит: St Jude Medical Atrial Fibrillation Division Inc

An irrigated ablation electrode assembly comprises a distal member, a first manifold, and a second manifold. The distal member includes an outer surface; an inner surface; and at least one radially extending passageway that extends from the inner surface of the distal member to the outer surface of the distal member. The first manifold includes an outer surface, an inner cavity, and at least one radially extending passageway that extends from the inner cavity to the outer surface of the first manifold. The second manifold includes an outer surface, an inner surface, and at least one radially extending passageway that extends from the inner surface of the second manifold to the outer surface of the second manifold. Other irrigated ablation electrode assemblies are also presented.

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Номер записи: 21
28-06-2012 дата публикации

Endoluminal fold creation

Номер: US20120165604A1
Автор: Gary L. Long, Jason L. Harris, Mark S. Zeiner, Michael J. Stokes
Принадлежит: Ethicon Endo Surgery Inc

Devices and methods are provided for forming one or more plications in the walls of a body cavity. In particular, endoscopic devices and methods are provided for forming and/or securing endoluminal tissue folds to reduce the volume of the gastric cavity. An end effector that includes a tissue receiving cavity can be delivered to a desired surgical site to allow a tissue fold to be formed within the tissue receiving cavity. A fastener can be used to secure the adjacent layers of tissue that form the tissue fold. The tissue folds can be effective to limit the stomach's capacity and create a feeling of satiety.

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Номер записи: 22
28-06-2012 дата публикации

Endoluminal fold creation

Номер: US20120165842A1
Автор: Jason L. Harris, Lawrence Crainich, Mark S. Zeiner, Michael J. Stokes, Ryan M. Asher
Принадлежит: Ethicon Endo Surgery Inc

Devices and methods are provided for forming one or more plications in the walls of a body cavity. In particular, endoscopic devices and methods are provided for forming and/or securing endoluminal tissue folds to reduce the volume of the gastric cavity. An end effector that includes a tissue receiving cavity can be delivered to a desired surgical site to allow a tissue fold to be formed within the tissue receiving cavity. A fastener can be used to secure the adjacent layers of tissue that form the tissue fold. The tissue folds can be effective to limit the stomach's capacity and create a feeling of satiety.

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Номер записи: 23
05-07-2012 дата публикации

Snare with Retractable Engaging Members

Номер: US20120172662A1
Автор: Gary Kappel, Gerald Heller, Ken Keene, Larry Stanton, Man Nguyen, Ruth Cheng
Принадлежит: Boston Scientific Scimed Inc

A snare for retrieving foreign objects within the body of a patient including a hollow elongate tubular member comprising an inner surface and an outer surface and a lumen defined by the inner surface, a proximal end and a distal end, the hollow elongate tubular member forms a loop at the distal end, the loop having an open position and a closed position, the loop comprising at least one opening and a wire slidably disposed in the lumen of the elongate tubular member, the wire comprising at least one engaging member for engaging tissue, the at least one engaging member extends through the at least one opening in the hollow elongate tubular member when the wire is in a first position and the at least one engaging member retracts into the lumen of the elongate tubular member when the wire moved to a in a second position.

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Номер записи: 24
12-07-2012 дата публикации

Angiography catheter

Номер: US20120179033A1
Автор: William M. Merhi
Принадлежит: Merhi William M

Embolic protection devices and methods for capturing embolic debris. An embolic protection device includes a pigtail catheter having a lumen for housing a guidewire. The distal portion of the catheter has one or more apertures in fluid communication with the lumen and one or more radiopaque markers on the distal-most section. The device includes a self-expanding filter coupled to a side of the catheter and a movable outer sheath surrounding the catheter. The outer sheath holds the filter in a collapsed configuration when surrounding the filter. The outer sheath is proximally retracted to deploy the filter. A method of capturing embolic debris includes inserting a guidewire into a body lumen, tracking the device over the guidewire, retracting the guidewire, positioning the device using the radiopaque marker, retracting the outer sheath and deploying the filter, performing a procedure, and advancing the outer sheath to recapture the filter.

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Номер записи: 25
12-07-2012 дата публикации

Tissue ablation using pulse modulated radio frequency energy

Номер: US20120179154A1
Автор: Kimbolt Young, S. Nahum Goldberg
Принадлежит: Boston Scientific Scimed Inc

Tissue ablation systems and methods are provided. Ablation energy (e.g., radio frequency energy) is delivered to the tissue and a physiological parameter (e.g., impedance and/or temperature) indicative of a change in moisture concentration of the tissue is sensed. The ablation energy is alternately pulsed on and off to generate an energy pulse train, with the ablation energy being pulsed on if the sensed physiological parameter crosses a threshold value indicative of an increase in the moisture concentration, and being pulsed off if the sensed physiological parameter crosses a threshold value indicative of a decrease in the moisture concentration.

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Номер записи: 26
26-07-2012 дата публикации

Apparatus and Methods for Determining a Subject's Response to Catheter-Based Ablation Therapy Based on Spectral Mapping During Sinus Rhythm

Номер: US20120191087A1
Автор: Enrique Indalecio Pachón Mateos, José Carlos Pachón Mateos
Принадлежит: St Jude Medical Atrial Fibrillation Division Inc

Apparatus for curative ablation are provided to achieve the inactivation or destruction of fibrillar myocardium of the so-called AF nests. In addition, fibrillar myocardium may be identified and mapped by spectral analysis and phase study of the tissue during sinus rhythm. The procedure may be performed by transseptal puncture using only one catheter for ablation and mapping. The methods may be used to localize the application targets even during an arrhythmia.

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Номер записи: 27
26-07-2012 дата публикации

Systems and methods for turbinate reduction

Номер: US20120191089A1
Автор: Lloyd Gonzalez, Lona Foelker
Принадлежит: Individual

The present disclosure includes an electrosurgical apparatus for treating tissue at a target site. The apparatus has a shaft with a proximal end and a distal end, and the distal end includes an active disposed laterally on the shaft distal end and return electrode. The return electrode may have a plurality of apertures through it, which are fluidly connected to a fluid delivery element, operable to deliver a conductive fluid to the shaft distal end. The return electrode may encircle at least a portion of the shaft and may extend distally and proximally from the active electrode.

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Номер записи: 28
09-08-2012 дата публикации

Ultrasound power supply for an ultrasound transducer

Номер: US20120203098A1
Автор: Balasundara Iyyavu Raju, Shiwei Zhou, Shunmugavelu Sokka
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

An ultrasound power supply ( 100 ) adapted for supplying electrical power for driving an ultrasound transducer ( 202, 702 ) in contact with a subject ( 208 ), wherein the ultrasound power supply comprises:—a communications interface ( 102 ) adapted for receiving a first temperature measurement of a first volume ( 211, 318 ) of the subject and a second temperature measurement of a second volume ( 214, 320 ) of the subject;—a controller ( 108 ) adapted for modulating the output of electrical power for driving the ultrasound transducer such that via ultrasonic heating by the ultrasound transducer: a. the first temperature measurement is maintained above a first predetermined threshold, b. the first temperature measurement is maintained below a second predetermined threshold, and c. the second temperature measurement is maintained below a third predetermined threshold; and wherein the first predetermined threshold is above the third predetermined threshold.

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Номер записи: 29
16-08-2012 дата публикации

Catheter system and method for boring through blocked vascular passages

Номер: US20120209112A2
Автор: Himanshu Patel, John Simpson
Принадлежит: Avinger Inc

A rotating cutting head catheter for passage through chronic total occlusions or other refractory atherosclerotic plaque from diseased arteries is disclosed. The catheter's rotating cutting head is designed to reside safely within an outer protective sheath when not in use. The outer protective sheath contains one or more helical grooves or slots, and the cutting head contains protruding blades or projections that fit into these helical grooves or slots. Application of torque to an inner catheter or wire attached to the cutting head applies spin to the cutting head, and the force of the sheath's helical grooves or slots against the cutting head's protruding blades or projections advances the cutting head outward from the protective sheath. Once extended, the cutting head may now rotate freely. The device may use a guidewire to direct the cutting head to the desired position.

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Номер записи: 30
06-09-2012 дата публикации

Vacuum Ablation Apparatus and Method

Номер: US20120226271A1
Автор: Peter Callas, Robert M. Pearson
Принадлежит: Angiodynamics Inc

Ablation devices and associated methods are provided for use in ablating a target tissue, such as a cystic lesion. The ablation apparatus includes an integral or connected elongate probe and a deployable structure that is axially slidable along the outer surface of the electrode. The electrode can be disposed at the probe's distal end region for ablating tissue when the electrode(s) are activated to create an ablated margin of tissue at least partially surrounding the target tissue. Suction can be applied with a vacuum source operably connected to the proximal end region of the deployable structure. A target tissue, such as a cystic lesion, can be drawn against the surface of the electrical probe.

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Номер записи: 31
06-09-2012 дата публикации

Electrosurgical device with internal digestor electrode

Номер: US20120226273A1
Автор: Doug Evans, Kim Nguyen, Seth M. Pransky
Принадлежит: Arthrocare Corp

An electrosurgical wand is described, for treating a target tissue using electrosurgical energy, which has an elongate shaft with a handle end and a distal end. A first active electrode surface is disposed on the distal end of the shaft and a first digester electrode surface is recessed away from the first active electrode surface and electrically connected with the first active electrode surface. An aspiration aperture is also disposed adjacent the first active electrode surface and fluidly connected with an aspiration lumen, wherein the first digester electrode surface is disposed within the aspiration lumen.

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Номер записи: 32
13-09-2012 дата публикации

System and method for endometrial ablation

Номер: US20120232545A1
Автор: Akos Toth, Csaba Truckai, Robin Bek
Принадлежит: Minerva Surgical Inc

Methods, systems and devices for evaluating the integrity of a uterine cavity. A method comprises introducing transcervically a probe into a patient's uterine cavity, providing a flow of a fluid (e.g., CO 2 ) through the probe into the uterine cavity and monitoring the rate of the flow to characterize the uterine cavity as perforated or non-perforated based on a change in the flow rate.

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Номер записи: 33
13-09-2012 дата публикации

Radiofrequency Perforation Apparatus

Номер: US20120232546A1
Автор: Gareth Davies, Mahmood Mirza
Принадлежит: Baylis Medical Co Inc

A radiofrequency perforation apparatus for creating a channel at a target location in a body of a patient, the radiofrequency perforation apparatus comprising: a substantially tubular member defining a tubular member lumen; an end member partially positioned within the tubular member lumen at a distal end of the tubular member, the end member including an electrode; and an electrical insulator extending along the substantially tubular member.

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Номер записи: 34
27-09-2012 дата публикации

Cooling systems for electrode arrays

Номер: US20120245577A1
Автор: Alexander J. Asconeguy, Ricardo D. Roman, Teresa Ann Mihalik, Timothy J. Corvi
Принадлежит: MEDTRONIC ABLATION FRONTIERS LLC

A medical device is disclosed, including a catheter body; an electrode array coupled to the catheter body, the electrode array being transitionable from a substantially linear configuration to a substantially helical configuration; and a fluid conduit coupled to the catheter body spaced apart from the electrode array, wherein the fluid conduit is transitionable from a substantially linear configuration to a substantially helical configuration. The device may include a fluid source in communication with the fluid conduit and a radiofrequency signal generator coupled to the electrode array.

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Номер записи: 35
27-09-2012 дата публикации

Medical ablation system and method of use

Номер: US20120245580A1
Автор: Aaron GERMAIN, Balazs Lesko, Benedek Orczy-Timko
Принадлежит: ARQOS Surgical Inc

Cartilage and other tissues are treated by generating a plasma in an interior space of a probe and exposing the tissue to the plasma. The plasma is released through a gap in a working end of the probe.

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Номер записи: 36
04-10-2012 дата публикации

Surgical Devices And Methods of Use Thereof

Номер: US20120253343A1
Автор: Brian M. Conley, Michael E. McClurken, Roger D. Greeley
Принадлежит: MEDTRONIC ADVANCED ENERGY LLC

The invention provides surgical devices and methods to treat tissue. In one device embodiment, the invention comprises a bipolar electrosurgical device to treat tissue in a presence of radio frequency power and a fluid provided simultaneously from a distal portion of the device, with the device comprising a disc shaped distal end. In one method embodiment, the invention comprises a method of treating tissue having a blood vessel during spine surgery, with the method comprising pressing a portion of the blood vessel against a supporting spine structure with a surgical device to provide a compressed portion of the blood vessel, and heating the compressed portion of the blood vessel with the surgical device sufficiently to inhibit a blood flow through the vessel after the surgical device is removed from the blood vessel.

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Номер записи: 37
11-10-2012 дата публикации

Method and System for Using Common Subchannel to Assess the Operating Characteristics of Transducers

Номер: US20120259327A1
Автор: Gleb V. Klimovitch, Shena H. Park, Timothy E. Ciciarelli
Принадлежит: St Jude Medical Atrial Fibrillation Division Inc

A system and method for using a common subchannel to assess operating characteristics of one of a plurality of transducers coupled to said subchannel is disclosed. The of transducers are divided into subsets, with each subset is coupled to a subchannel. The system is configured to activate a selected transducer on the subchannel and the subchannel delivers operational information on the activated transducer. The present invention reduces the number of subchannels required to collect information on the plurality of transducers. The present invention permits a more compact ablation device to be constructed based on the invention's ability to reduce the total number of subchannels required to collect transducer information.

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Номер записи: 38
25-10-2012 дата публикации

Medical needles and electrodes with improved bending stiffness

Номер: US20120271250A1
Автор: Kimbolt Young
Принадлежит: Boston Scientific Scimed Inc

A device for penetrating tissue includes an elongated element having a distal end, a proximal end, a body extending between the distal and the proximal ends, and a lumen located within at least a portion of the body, wherein the lumen has a cross-sectional shape that is a polygon. A device for penetrating tissue includes an elongated element having a distal end, a proximal end, and a body extending between the distal and the proximal ends, at least a portion of the body having a cross-sectional profile that is a polygon, wherein the elongated element is a cannula.

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Номер записи: 39
01-11-2012 дата публикации

Balloon Resection Method

Номер: US20120277578A1
Автор: Erhan H. Gunday, Lawrence J. Gerrans
Принадлежит: Sanovas Inc

A balloon resection method is disclosed generally comprising inserting a catheter with at least one balloon having an outer wall with a resecting, non-slip surface for resecting unwanted biological material, such as tissues or tumors, and supplying fluid thereto in pulsed fashion to repeatedly deflate and inflate the balloon. In certain embodiments, a pump controls the pulsed supply of fluid based on an established frequency or change in volume. In some embodiments, the a keyed connector is used to identify the balloon type, and in some cases, intra-lumen diameters and densities are calculated. In some embodiments, the balloon portion of the catheter includes multiple balloon segments, which in some cases, are inflatable separately from one another.

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Номер записи: 40
01-11-2012 дата публикации

Method and Apparatus for Tissue Ablation

Номер: US20120277736A1
Автор: David E. Francischelli
Принадлежит: MEDTRONIC INC

A method for ablation in which a portion of atrial tissue around the pulmonary veins of the heart is ablated by a first elongated ablation component and a second elongated ablation component movable relative to the first ablation component and having means for magnetically attracting the first and second components toward one another. The magnetic means draw the first and second components toward one another to compress the atrial tissue therebetween, along the length of the first and second components and thereby position the device for ablation of the tissue.

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Номер записи: 41
22-11-2012 дата публикации

System and method for targeting catheter electrodes

Номер: US20120296200A1
Автор: Bruce Marx, David Johnson, Leslie Farkas, Steven Kim, Yehoshua Shachar
Принадлежит: Magnetecs Inc

A system and method is described for a catheter guidance system which allows an operator to use a mapping catheter to specify tissue target locations for the automatic guidance of a second therapeutic catheter. The operator places a mapping catheter at a desired location, and commands the catheter guidance system by either selecting a point on that catheter or one of the catheter electrode electrocardiograms. The operator may target the selected dynamic location, or tissue contact beyond that location on a specific side of the mapping catheter.

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Номер записи: 42
22-11-2012 дата публикации

Device and method for photodynamic therapy

Номер: US20120296260A1
Автор: Freimut Vizethum, Reinhold Schuetze
Принадлежит: BRENDENT MEDICAL & Co KG GmbH

The invention relates to an apparatus for photodynamic therapy and/or for destroying or reducing microorganisms, comprising an irradiation unit having at least one light source, by means of which a photosensitizer applied to a wound area to be treated is activated by way of irradiation, further comprising a camera for recording images of the wound, which is disposed in the irradiation unit, and a positioning unit, by means of which the irradiation unit can be oriented with respect to the wound area. The invention further relates to a method for operating such an apparatus. On a display for the images is a grid with visual indicia distinguishing fields to be irradiated by means of the light sources.

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Номер записи: 43
29-11-2012 дата публикации

Electrosurgical assembly and electrosurgical instrument

Номер: US20120303016A1
Автор: Alexander Neugebauer, Daniel Schaeller, Irina Sigle, Joerg Kronenthaler, Klaus Fischer, Lars Blobel, Mara Szyrach, Markus D. Enderle, Matthias Voigtlaender
Принадлежит: Erbe Elecktromedizin GmbH

An electrosurgical assembly is disclosed having an electrosurgical instrument, a detection device for detecting a predetermined constituent of the atmosphere in the region of a treatment site and a treatment unit, which can be connected to the instrument and a current generator for providing RF energy. The treatment unit includes a mechanism for influencing the treatment process depending on an output signal of the detection device.

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Номер записи: 44
06-12-2012 дата публикации

Medical device

Номер: US20120310227A1
Автор: Yukitoshi Katou
Принадлежит: Terumo Corp

A medical device includes a steering unit at a proximal portion of a catheter to steer operations of a heating unit at a distal portion of the catheter. The steering unit includes a main body portion interlocked with the catheter; a slide portion interlocked with the heating unit and slidable relative to the main body portion; a guide unit interlocked with the main body portion and fixed to the slide portion for movement therewith; and an input connector electrically connected with the heating unit and connectable with an output connector for supplying electric energy to the heating unit. The guide unit hinders connection between the input connector and the output connector. A cutout portion enables connection between the input and output connectors when the guide unit moves with respect to the main body portion and the heating unit moves to a position at which the biological tissue is heatable.

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Номер записи: 45
20-12-2012 дата публикации

Tissue Sealing Forceps

Номер: US20120323238A1
Автор: Barbara R. Tyrrell, Duane E. Kerr
Принадлежит: TYCO HEALTHCARE GROUP LP

A forceps includes an end effector assembly having first and second jaw members. One (or both) of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes an opposed jaw surface having an electrically-conductive tissue sealing plate disposed thereon. The electrically-conductive tissue sealing plate includes a first portion configured to conduct energy through tissue grasped between the jaw members to create a main tissue seal and a second portion including a plurality of spaced-apart fingers extending from the first portion. The second portion is configured to conduct energy through tissue grasped between the jaw members to create an auxiliary tissue seal extending from the main tissue seal for reducing stress concentrations adjacent the main tissue seal.

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Номер записи: 46
10-01-2013 дата публикации

Methods and apparatus for performing a non-continuous circumferential treatment of a body lumen

Номер: US20130012867A1
Автор: Andrew Wu, Benjamin J. Clark, Denise Demarais, Hanson Gifford, III, Kenneth J. Michlitsch, Mark Deem, Nicolas Zadno
Принадлежит: Ardian Inc

Methods and apparatus are provided for non-continuous circumferential treatment of a body lumen. Apparatus may be positioned within a body lumen of a patient and may deliver energy at a first lengthwise and angular position to create a less-than-full circumferential treatment zone at the first position. The apparatus also may deliver energy at one or more additional lengthwise and angular positions within the body lumen to create less-than-full circumferential treatment zone(s) at the one or more additional positions that are offset lengthwise and angularly from the first treatment zone. Superimposition of the first treatment zone and the one or more additional treatment zones defines a non-continuous circumferential treatment zone without formation of a continuous circumferential lesion. Various embodiments of methods and apparatus for achieving such non-continuous circumferential treatment are provided.

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Номер записи: 47
31-01-2013 дата публикации

Catheter with flow balancing valve

Номер: US20130030385A1
Автор: Jeffrey W. Schultz, Michael Olen Zirkle
Принадлежит: Biosense Webster Israel Ltd

A catheter has at least two irrigated ablation electrodes and a coaxial irrigation tubing to transport fluid to the electrodes by separate and dedicated flow paths. A valve is used to control flow of fluid into the coaxial irrigation tubing by means of a plunger assembly that allows fluid to flow through one lumen of the coaxial irrigation tubing while regulating the flow into the other lumen of the coaxial irrigation tubing in response to the fluid flow rate and pressure applied to the plunger assembly.

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Номер записи: 48
31-01-2013 дата публикации

Intracardiac tools and methods for delivery of electroporation therapies

Номер: US20130030430A1
Автор: Jordon D. Honeck, Mark T. Stewart
Принадлежит: MEDTRONIC ABLATION FRONTIERS LLC

A medical system, including a medical device having a plurality of deployable arms, and at least one electrode on at least one of the plurality of arms; and an electric signal generator in communication with the medical device, the electric signal generator programmed to deliver pulsed energy to the medical device sufficient to induce irreversible electroporation ablation.

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Номер записи: 49
07-02-2013 дата публикации

Robotic systems and methods for treating tissue

Номер: US20130035537A1
Автор: Aaron Grogan, Dale Bergman, Daniel T. Wallace, Ruchi Choksi
Принадлежит: Hansen Medical Inc

A method of manipulating an elongate member in at least two degrees of freedom includes holding an elongate member between two rotary members that define respective rotational axes, the elongate member having a flexible proximal portion, a distal rigid needle attached to the proximal portion, and an operative element for delivering energy, the needle having a distal port, actuating at least one of the rotary members in a rotational direction about its rotational axis to generate a corresponding linear motion of the elongate member along a longitudinal axis of the elongate member, and actuating at least one of the rotary members in a linear direction along its rotational axis to generate a corresponding rotational motion of the elongate member about the longitudinal axis of the elongate member.

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Номер записи: 50
07-02-2013 дата публикации

System and method for mapping gastro-intestinal electrical activity

Номер: US20130035576A1
Автор: Andrew John Pullan, Gregory Brian O'grady, Jonathan Christopher Erickson, Leo Koon-Wah Cheng, Peng Du
Принадлежит: Auckland Uniservices Ltd

A gastro-electrical activity mapping system and comprises a catheter insertable through a natural orifice into the gastro-intestinal (GI) tract and comprising an array of electrodes for contacting an interior surface of a section of the GI tract to detect electrical potentials at multiple electrodes, and a signal analysis and mapping system arranged to receive and process electrical signals from multiple electrodes of the array and spatially map GI smooth muscle electrical activity as an activation time map, a velocity map, or an amplitude map, which may be in the form of contour plots and may be mapped on an anatomical computer model of at least the section of the GI tract and may be animated. A GI mapping method and catheter are also claimed.

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Номер записи: 51
07-02-2013 дата публикации

Apparatus, System, and Method for Performing an Electrosurgical Procedure

Номер: US20130035688A1
Автор: Duane E. Kerr, Jeffrey R. Townsend, Terrence R. Young, William H. Nau, JR.
Принадлежит: TYCO HEALTHCARE GROUP LP

A bipolar forceps includes a shaft extending from a housing and includes an end effector assembly at its distal end. The end effector assembly has a pair of jaw members movable between an open position and a closed position. A knife assembly includes a cutter having a generally circular cross-section. The cutter is configured to cut tissue when the jaw members are in the closed position. One or more electrically conductive tissue sealing plates are disposed on each of the jaw members. The tissue sealing plates are adapted to connect to an electrosurgical energy source configured to deliver electrosurgical energy to tissue held between the jaw members to effect a tissue seal. An actuator is operably coupled to the knife assembly and is configured to selectively reciprocate the cutter relative to the jaw members.

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Номер записи: 52
14-02-2013 дата публикации

Drive mechanism for articulation of a surgical instrument

Номер: US20130041403A1
Автор: Eric Jones, James S. Cunningham, Marc Spinali
Принадлежит: COVIDIEN LP

A surgical instrument includes a housing, an end effector and an elongated shaft extending therebetween. The elongated shaft includes a distal portion that is movable between aligned and articulated configurations. A pair of drive cables extends through the elongated shaft and is coupled to the distal portion such that reciprocal longitudinal motion of the drive cables induces movement of the distal portion between the aligned and articulated configurations. An articulation drive mechanism is operable to induce reciprocal longitudinal motion of the drive cables. The drive mechanism includes an actuator and a pair of torsion members that are rotatable about two distinct axes in response to movement of the actuator. A respective follower is operatively coupled to each torsion member to translate in a respective longitudinal direction in response to rotation of the torsion members, and each follower is coupled to a respective drive cable to impart translational motion thereto.

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Номер записи: 53
21-02-2013 дата публикации

Cardiac Electrosurgery

Номер: US20130046305A1
Автор: Gareth Davies
Принадлежит: Baylis Medical Co Inc

Devices and methods are disclosed for providing access to the pericardial cavity while reducing risk of myocardial damage. The methods include maintaining the positions of a puncture device and of a portion of a parietal pericardium relative to one other while delivering energy from the puncture device to create a channel through the pericardium. Additional embodiments disclosed include delivering a pulse or pulses of energy to the parietal pericardium and attempting to advance the puncture device through the parietal pericardium between deliveries of energy pulses.

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Номер записи: 54
28-02-2013 дата публикации

Flexible electrosurgical ablation and aspiration electrode with beveled active surface

Номер: US20130053842A1
Автор: Robert A. Van Wyk
Принадлежит: ElectroMedical Assoc LLC

Disclosed herein is a flexible single piece active element for use in connection with aspirating electrosurgical ablators, particularly those configured for bulk tissue vaporization. The active electrode elements of the present invention provide a simple construction suitable for use with a wide array of electrosurgical components and adjustable to wide range of angled positions to permit access to a variety of tissues, in an array of diverse environments and address a host of ablation needs. Additionally, the novel geometry and positioning of both ablation surface and aspiration ports permit aspiration flow to remove primarily waste heat rather than process heat, to thereby improve vaporization efficiency and reduce procedure time. Thus, active electrodes and ablation devices of the present invention maximize efficiency and adaptability while minimizing manufacturing cost and device profile.

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Номер записи: 55
14-03-2013 дата публикации

APPLIANCE FOR AT LEAST PARTIALLY STERILIZING A CONTAMINATED SURFACE

Номер: US20130064726A1
Автор: Li Yang-Fang, Morfill Gregor, Shimizu Tetsuji, Steffes Bernd, Urayama Takuya, Zimmermann Julia
Принадлежит:

The invention relates to an appliance () for at least partially disinfecting/sterilising a contaminated surface (), wherein the appliance () comprises an integrated plasma source for at least partially disinfecting/sterilising the surface by generating a non-thermal atmospheric plasma on the surface thereby reducing the concentration of pathogenic germs on the surface. 1. An appliance for at least partially disinfecting/sterilizing a contaminated surface , comprising an integrated plasma source adapted generate a non-thermal plasma on the surface for at least partially disinfecting/sterilizing the surface by reducing a concentration of pathogenic germs on the surface.2. The appliance according to claim 1 , wherein the surface to be sterilized is a surface of the appliance which is contaminated during use of the appliance.3. The appliance according to claim 1 , whereina) the plasma source is a surface micro-discharge plasma source comprising several electrodes, and/orb) there is a uniform distance between the adjacent electrodes of different polarity, orc) there is a spatially variable distance between the adjacent electrodes of different polarity.4. The appliance according to claim 3 , wherein the surface micro-discharge plasma source is embedded into a surface of the appliance claim 3 , so that the non-thermal plasma is generated on top of the surface of the appliance.5. The appliance according to claim 4 , whereina) the electrodes of the surface micro-discharge plasma source have a shape which resembles the shape of the surface of the appliance, and/orb) the electrodes of the surface micro-discharge plasma source are flat and/or planar.6. The appliance according to claim 4 , wherein the electrodes of the surface micro-discharge plasma source are arranged in the same plane.7. The appliance according to claim 6 , whereina) the electrodes are finger-shaped intertwining each other from opposite directions, orb) the electrodes are spiral-shaped intertwining each other, ...

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Номер записи: 56
21-03-2013 дата публикации

SYSTEMS AND METHODS FOR PLANNING IMAGE-GUIDED INTERVENTIONAL PROCEDURES

Номер: US20130072784A1
Автор: Velusamy Gnanasekar
Принадлежит:

In some embodiments, a planning station can receive image data associated with an image(s) of an area of interest within a body of a patient and display the image(s) on a display device. A user can make a selection of a first interventional tool and a second interventional tool about which information is stored in a memory of the planning station. The planning station can execute a simulation viewable on the display device of a treatment plan for disposing the first and second interventional tools in the body of the patient and applying thermal energy from the first and second interventional tools to the body of the patient. The planning station can generate a thermal model of the thermal effect collectively produced on tissue of the patient by the first interventional tool and the second interventional tools and display the thermal model on the display device. 1. A non-transitory processor-readable medium storing code representing instructions to cause a processor to:receive image data associated with at least one image of an area of interest within a body of a patient, the area of interest including a target tissue to be treated;display the at least one image on a display device;receive an input from a user of a selection of a first interventional tool from a plurality of interventional tools about which information is stored in a memory,receive an input from the user of a selection of a second interventional tool from the plurality of interventional tools about which information is stored in the memory;execute a simulation viewable on the display device of a treatment plan including disposing the first interventional tool in a first location in the body of the patient, disposing the second interventional tool in a second location in the body of the patient, applying a first amount of energy from the first interventional tool and applying a second amount of energy from the second interventional tool to the body of the patient;generate a thermal model of the ...

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Номер записи: 57
21-03-2013 дата публикации

METHOD AND APPARATUS EMPLOYING ULTRASOUND ENERGY TO TREAT BODY SPHINCTERS

Номер: US20130072928A1
Автор: Schaer Alan K.
Принадлежит:

Methods and apparatus for treating gastroesophageal reflex and other luminal conditions provide for delivering acoustic energy to a body lumen to remodel tissue surrounding the body lumen. In the case of treating GERD, a catheter carrying an ultrasonic or other vibrational transducer is introduced to the lower esophageal sphincter, and acoustic energy is delivered to the sphincter in order to tighten or bulk the sphincter such that reflex is reduced. 126-. (canceled)27. A method of intraluminal ablation of nerve tissue surrounding a bodily lumen of a subject , comprising:delivering an ablation device within a bodily lumen of a subject, said ablation device comprising a catheter and at least one energy delivery element positioned along a distal end of the catheter, said at least one energy delivery element comprising at least one ultrasound transducer, wherein the catheter comprises at least one fluid passage and a balloon positioned along a distal end of the catheter, said balloon configured to surround the at least one energy delivery element, said at least one fluid passage being in fluid communication with said balloon;advancing the ablation device within the bodily lumen to position the at least one energy delivery element adjacent target nerve tissue of the subject;at least partially inflating the balloon by delivering a cooling fluid through the at least one fluid passage of the catheter;circulating a cooling fluid through an interior of the balloon via the at least one fluid passage of the catheter to remove heat away from the at least one energy delivery element; andactivating the at least one energy delivery element to deliver energy radially outwardly from said at least one energy delivery element through the balloon and toward a wall of the bodily lumen, wherein the at least one energy delivery element is activated so that sufficient energy is delivered to at least partially ablate nerve tissue adjacent the wall of the bodily lumen;wherein cooling fluid ...

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Номер записи: 58
28-03-2013 дата публикации

ELECTROSURGICAL INSTRUMENT ASSEMBLY

Номер: US20130079769A1
Автор: HUMBLE Robert, IRELAND Steven Lawrence, MORRIS David, TISSINGTON Bryan
Принадлежит: GYRUS MEDICAL LIMITED

A method of assembling an electrosurgical instrument () includes the steps of forming components such as an elongate shaft (), an electrode () and a base unit (), presenting the electrode () to the base unit () such that the electrode () is temporarily located on the base unit (), and applying a locking component (), the locking component () holding the electrode () and the base unit () together. The locking component () is then secured to the elongate shaft () unit in such a way as to retain the electrode () on the base unit () and form the completed electrosurgical instrument. The locking component can be secured by means of a mechanical arrangement such as a bayonet fixing, or by a screw threaded connection. 1. A method of assembling an electrosurgical instrument , the method including:firstly forming components including an elongate shaft, an electrode and an insulating base unit,secondly presenting the electrode to the base unit such that the electrode is temporarily located on the base unit,thirdly applying a locking component, the locking component holding the electrode and the base unit together, andfinally securing the locking component to the shaft to form the completed electrosurgical instrument.2. A method according to claim 1 , wherein the forming includes forming both first and second electrodes claim 1 , and presenting includes presenting both electrodes to the base unit so they are temporarily located on the base component separate one from another.3. A method according to claim 1 , wherein the applying the locking component comprises applying the locking component from the distal end of the base unit.4. A method according to claim 1 , wherein the securing the locking component to the shaft includes a mechanical interlock mechanism.5. A method according to claim 4 , wherein a first one of either the locking component or the elongate shaft includes a latch mechanism claim 4 , designed to cooperate with a corresponding part of the second one of either ...

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Номер записи: 59
28-03-2013 дата публикации

Long Ultrasonic Cutting Blade Formed of Laminated Smaller Blades

Номер: US20130079771A1
Автор: Cuny Douglas J.
Принадлежит: COVIDIEN LP

An end effector of an ultrasonic surgical instrument is provided, the ultrasonic surgical instrument having a manipulatable structure, a body portion operatively connected to the manipulatable structure and having a distal end, a transducer, and the end effector being supported on the distal end of the body portion, the end effector including a plurality of resonant member elements, each resonant member operatively connected to a transducer of the plurality of transducers for effecting vibrations along the length of the resonant member, and including an operating surface configured to effect tissue dissection, cutting, coagulation, ligation and/or hemostasis, wherein a displacement curve associated with the vibrations of a first one of the plurality of resonant members is offset relative to the displacement curve associated with the vibrations of a second one of the plurality of resonant members. 152-. (canceled)53. An end effector of an ultrasonic surgical instrument , the end effector comprising: a body defining a first cavity at a distal end of the body;', 'a resonant structure defining a distal end and a proximal end, the proximal end of the resonant structure received within the first cavity, the distal end of the resonant structure extending longitudinally and distally beyond the first cavity, the resonant structure defining a second cavity at the proximal end of the resonant structure; and', 'a transducer received within the second cavity, the transducer effecting vibrations along the length of the resonant member;, 'an array of at least two resonant members, each resonant member including'}wherein the at least two resonant members are staggered longitudinally relative to each other, and wherein a displacement curve associated with the vibrations of one of the at least two resonant members is offset relative to a displacement curve associated with the vibrations of another of the at least two resonant members.54. The end effector of claim 53 , wherein the ...

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Номер записи: 60
11-04-2013 дата публикации

Integrity Testing Method and Apparatus for Delivering Vapor to the Uterus

Номер: US20130090572A1
Автор: Bacich Steven Robert, Chee Uriel Hiram, Gurskis Donnell William, Peliks Robert Bilgor
Принадлежит:

A method and system of providing therapy to a patient's uterus is provided, which can include any number of features. The method can include the steps of inserting a uterine device into the uterus and performing a uterine integrity test to determine that the uterus is intact and not perforated. If it is determined that the uterus is not perforated, a patency test can be performed to determine that the uterine device is not clogged or embedded in tissue. If the uterus is intact and the device is not clogged or embedded in tissue, the uterus can be treated with the uterine device, e.g., uterine ablation. Systems for performing these methods are also disclosed. 1. A method of performing a procedure on a uterus of a patient , comprising: inserting a uterine device into the uterus of the patient;', 'delivering gas or fluid from an inflow lumen of the uterine device into the uterus;', 'measuring a flow rate of the gas or fluid as it is delivered into the uterus;', 'determining that the uterus is sealed if the flow rate decreases below a flow rate threshold value; and, 'performing a uterine integrity test comprising delivering gas or fluid from the inflow lumen of the uterine device into the uterus;', 'removing gas or fluid from the uterus with an outflow lumen of the uterine device;', 'determining that the uterine device is not clogged or embedded in tissue if a flow rate of gas or fluid is observed in the outflow lumen of the uterine device., 'after performing the uterine integrity test and determining that the uterus is sealed, performing a patency test for the uterine device comprising2. The method of wherein the uterine device is a uterine ablation device.3. The method of wherein fluid flow is observed in a flow meter of the outflow lumen.4. The method of wherein the determining that the uterus is sealed step further comprises determining that the uterus is sealed if the flow rate decreases below a flow rate threshold value within a predetermined time period.5. The ...

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Номер записи: 61
11-04-2013 дата публикации

Methods and systems for detection and thermal treatment of lower urinary tract conditions

Номер: US20130090640A1
Автор: Christopher H. Fry, David Borzelleca, John Sherry, John Young, Ruth Cheng, Sandra Nagale, Theresa Hague
Принадлежит: Boston Scientific Scimed Inc, UNIVERSITY OF SURREY

The invention is directed to a method for treating a urinary system. The method includes positioning one or more treatment units with respect to an organ wall. The one or more treatment units may be configured to deliver thermal energy. The method further includes delivering energy through the one or more treatment units to heat tissue of the organ wall.

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Номер записи: 62
11-04-2013 дата публикации

LAPARSCOPIC TISSUE MORCELLATOR SYSTEMS AND METHODS

Номер: US20130090642A1
Автор: Germain Aaron, Klein Kyle, Shadduck John H., Truckai Csaba, Walker Michael D.
Принадлежит: ARQOS Surgical, Inc.

A surgical tissue cutting and extraction device includes a sleeve having a tissue extraction lumen. One or more jaw members are coupled to the sleeve and configured to pivot or flex relative to the sleeve to capture tissue. The captured tissue may then be resected using radio frequency or other cutting tools on the sleeve. 1. A surgical tissue cutting and extraction device , comprising:an axially-extending sleeve having a tissue extraction lumen;an electrode edge disposed at a distal end of the sleeve; andone or more jaw members coupled to the sleeve, the jaw members configured to pivot or flex exteriorly of the extraction lumen toward and away from one another to capture tissue therebetween.2. The surgical device of wherein at least one jaw and sleeve are axially moveable relative to one another.3. The surgical device of wherein the electrode edge is coupled to an RF source and a controller for generating a tissue-cutting plasma at the electrode edge.4. The surgical device of wherein the electrode edge comprises a first polarity electrode and at least one jaw comprises a second polarity electrode.5. The surgical device of wherein the sleeve is axially moveable relative to the jaw member.6. The surgical device of wherein the sleeve is rotationally moveable relative to the jaw member.7. The surgical device of wherein the sleeve is actuatable axially and/or rotationally by a manual actuator.8. The surgical device of further comprising a motor drive to axially and/or rotationally actuate the sleeve.9. The surgical device of wherein the jaws are moveable toward or away from one another by a manual actuator.10. The surgical device of further comprising a motor drive to move the jaws are moveable toward or away from one another by a motor drive.11. The surgical device of wherein the jaws and sleeve are actuatable by a motor drive in a selected sequence.12. The surgical device of further comprising an RF on-off limit switch which terminates RF delivery based on the axial ...

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Номер записи: 63
11-04-2013 дата публикации

Surgical system for connecting body tissue parts

Номер: US20130090645A1
Автор: Bernd Blender, Christoph Rothweiler, Dieter Weisshaupt, Jürgen WEGMANN
Принадлежит: Aesculap AG

A surgical system that connects biological tissue includes a) a surgical instrument with two tool elements movable in relation to one another and in each case including an electrode, which electrodes, in a coming-together position of the tool elements preferably define a minimum distance from one another, lie opposite one another and face one another, and b) a medically compatible material assisting connection of the tissue.

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Номер записи: 64
11-04-2013 дата публикации

Renal nerve ablation cooling device and technique

Номер: US20130090650A1
Автор: Mark L. Jenson, Scott R. Smith, Travis J. SCHAUER
Принадлежит: Boston Scientific Scimed Inc

A catheter is disclosed including an elongated shaft having a distal end and a proximal end, where the catheter includes a thermal element at the distal end thereof. The thermal element may be used in an ablation procedure or other procedure to heat a tissue adjacent a vessel. The configuration of the distal end of the elongated shaft at or near the distal tip may encourage the cooling of or transferring of heat from the vessel wall. The configurations may include protrusions extending from and indentations extending into the shaft, which may manipulate the flow of fluid through a vessel in which the catheter has been inserted. Alternatively or additionally, a cap or thin insulative layer may be placed at or near the distal tip of the catheter shaft to cool the wall of the vessel.

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Номер записи: 65
11-04-2013 дата публикации

Medical devices including ablation electrodes

Номер: US20130090652A1
Автор: Mark L. Jenson
Принадлежит: Boston Scientific Scimed Inc

Medical devices and methods for making and using medical devices are disclosed. An example medical device may be a renal nerve modulation catheter. The catheter may include an elongate catheter shaft. The catheter shaft may have a plurality of cuts formed therein define a plurality of electrode assemblies. The electrode assemblies may each include a main strut, one or more branched spacer struts extending from the main strut, and an electrode extending from the main strut and positioned radially inward from the spacer struts.

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Номер записи: 66
18-04-2013 дата публикации

SYSTEMS AND METHODS FOR TREATING INJURIES TO JOINTS AND CONNECTIVE TISSUE

Номер: US20130096471A1
Автор: Barthe Peter G., Slayton Michael H.
Принадлежит: GUIDED THERAPY SYSTEMS, LLC

According to various embodiments, methods and systems useful for treating injuries to joints are provided herein. In some embodiments, methods and systems useful for permanent relief of pain in joints are provided herein. Various embodiments provide for combining therapeutic ultrasound energy directed to a joint with a medicant injected into the joint. 1. A method of treating an injury in a joint , the method comprising:targeting injured fibrous soft tissue located in at least one of at and proximate to an injury location comprising a portion of a joint;directing therapeutic ultrasound energy to the injured fibrous soft tissue;creating a conformal region of elevated temperature in the injured fibrous soft tissue; andcreating at least one thermally induced biological effect in the injured fibrous soft tissue.2. The method according to claim 1 , wherein the thermally induced biological effect is at least one of coagulation claim 1 , increased perfusion claim 1 , reduction of inflammation claim 1 , generation of heat shock proteins claim 1 , and initiation of healing cascade.3. The method according to claim 1 , further comprising targeting a capsule in the portion of the joint; and treating inflamed tissue at or proximate to the capsule.4. The method according to claim 1 , further comprising driving a medicant into the injured soft fibrous tissue.5. The method according to claim 4 , further comprising activating the medicant with the therapeutic ultrasound energy claim 4 , wherein the medicant is a steroid.6. The method according to claim 1 , further comprising peaking inflammation in the injury location and initiating a coagulation cascade in at least a portion of the joint.7. The method according to claim 1 , further comprising welding a portion of the injured fibrous soft tissue with the conformal ultrasound energy and repairing a tear in the portion of the joint.8. The method according to claim 1 , further comprising stimulating collagen growth in a portion of the ...

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Номер записи: 67
18-04-2013 дата публикации

METHOD FOR ABLATING BODY TISSUE

Номер: US20130096592A1
Автор: Arenson James W., Gallup David A., Thapliyal Hira V.
Принадлежит: VytronUS, Inc.

A tissue ablation system for treating fibrillation in a patient comprises a steerable interventional catheter having an energy source that emits a beam of energy to ablate tissue thereby creating a conduction block for aberrant electrical pathways. The system also includes a handle disposed near a proximal end of the interventional catheter and has an actuation mechanism for steering the interventional catheter. A console allows the system to be controlled and provides power to the system, and a display pod is electrically coupled with the console. The display pod has a display panel to display system information to a user and allows the user to control the system. A catheter pod is releasably coupled with the handle electrically and mechanically, and also electrically coupled with the display pod. 1. A system for ablating tissue , said system comprising:an elongate flexible shaft having a proximal portion, a distal portion, and a rotation axis;an ultrasound transducer adjacent the distal end of the elongate flexible shaft, wherein the ultrasound transducer is configured to emit a beam of ultrasound energy; andwherein the beam of ultrasound energy is configured to ablate target tissue without contact between the ultrasound transducer and the target tissue, andwherein the beam of ultrasound energy forms a continuous lesion in the target tissue while the distal portion of the elongate flexible shaft is moving.2. The system of claim 1 , further comprising a sensor adjacent the ultrasound transducer claim 1 , the sensor adapted to sense distance between the ultrasound transducer and a surface of the target tissue or adapted to sense properties of the target tissue.3. The system of claim 2 , wherein the sensed properties comprise target tissue wall thickness claim 2 , lesion properties in the target tissue claim 2 , or other target tissue properties.4. The system of claim 2 , wherein the ultrasound transducer and the sensor are the same ultrasound transducer.5. The ...

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Номер записи: 68
25-04-2013 дата публикации

Tissue extraction devices and methods

Номер: US20130103021A1
Автор: Aaron GERMAIN, Balazs Lesko, Benedek Orczy-Timko, Kyle Klein, Michael D. Walker
Принадлежит: ARQOS Surgical Inc

A tissue cutting device has an outer sleeve with a distal window and an inner cutting sleeve which moves past the window to cut tissue. The inner cutting sleeve has a lumen which may have a larger proximal diameter than distal diameter. A perimeter of the window may comprise a dielectric material. A distal edge of the inner sleeve may be displaced inwardly.

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Номер записи: 69
25-04-2013 дата публикации

ANCHORED CARDIAC ABLATION CATHETER

Номер: US20130103027A1
Автор: Guthermann Howard E., Ring Howard, Sklar Martin J.
Принадлежит:

An apparatus and method for performing cardiac ablations employs a catheter comprising an anchoring device and an ablating device to perform the ablations to electrically isolate the pulmonary veins and left atrium from surrounding atrial tissue. The anchor can comprise a balloon-type device, a stent-like device, a strut-like device, a spring-strut-like device, an umbrella-like device, a mushroom-like device, or other device that allows the catheter to maintain a position with respect to target tissue. The ablator can comprise a balloon ablator, an umbrella ablator, a pinwheel ablator, an umbrella ablator incorporating a cinch mechanism, a mushroom balloon ablator and a segmented balloon or pinwheel ablator. The anchor and ablator can also comprise a combination mushroom balloon anchor section and mushroom balloon ablator section. The anchor and ablator can include electrodes for measuring a conductance therebetween when in deployed position, so as to determine the effectiveness of the ablation. 114-. (canceled)15. An ablation device , the device comprising:an anchor comprising a retracted and a deployed configuration;an ablation apparatus comprising a retracted and a deployed configuration; anda mechanism that allows the ablation apparatus in the deployed configuration to be moved axially toward the anchor, once the anchor is in the deployed configuration and compressed against target tissue.16. The device according to claim 15 , wherein the mechanism is selected from the group consisting of: a pulley system associated with the anchor and coupled to the ablation apparatus claim 15 , a slide and catch mechanism associated with the anchor and coupled to the ablation apparatus claim 15 , and a flexible helix drive associated with the anchor and coupled to the ablation apparatus.17. The device according to claim 16 , wherein the mechanism further comprises a drive motor.18. The device according to claim 17 , wherein the drive motor is external the device.19. The device ...

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Номер записи: 70
25-04-2013 дата публикации

Reflectance-facilitated ultrasound treatment and monitoring

Номер: US20130103028A1
Автор: Liat Tsoref, Michael Kardosh, Yossi Gross
Принадлежит: Liat Tsoref, Michael Kardosh, Yossi Gross

Apparatus comprising an ultrasound ablation system ( 10 ), which comprises a reflection-facilitation element ( 12 ), configured to be placed at an extramyocardial site of a subject, and to provide an extramyocardial reflective region; and an ultra-sound tool ( 20 ), which comprises at least one ultrasound transducer ( 40 ) configured to be positioned within a heart chamber of the subject. The ultrasound transducer ( 40 ) is configured to ablate myocardial tissue by applying ultrasound energy to the myocardial tissue such that at least a portion of the transmitted energy is reflected by the reflective region onto the myocardial tissue. Other embodiments are also described.

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Номер записи: 71
25-04-2013 дата публикации

SURFACE ABLATION ANTENNA WITH DIELECTRIC LOADING

Номер: US20130103029A1
Автор: Brannan Joseph D.
Принадлежит: Vivant Medical, Inc.

An electrosurgical device for directing energy to a target volume of tissue includes a coaxial feedline having an inner conductor, an outer conductor coaxially disposed around the inner conductor, and a dielectric material disposed therebetween. An elongated electrically-conductive member is longitudinally disposed at a distal end of the inner conductor; a balun structure is disposed on the outer conductor. An electrically-conductive cylinder is coaxially disposed around a distal portion of the balun structure and a dielectric structure is disposed substantially adjacent to a distal end of the electrically-conductive cylinder and configured to extend to a distal end of the electrically-conductive member. An elongated handle assembly is coaxially disposed around a portion of the outer conductor proximal to the dielectric structure and a shell assembly is disposed at a distal end of the elongated handle assembly. A portion of the shell assembly is configured to extend distally beyond the distal end of the electrically-conductive member. 1. An electrosurgical device for directing energy to a target volume of tissue , comprising:a coaxial feedline having an inner conductor, an outer conductor coaxially disposed around the inner conductor, and a dielectric material disposed therebetween;an elongated electrically-conductive member longitudinally disposed at a distal end of the inner conductor;a balun disposed in association with the outer conductor;an electrically-conductive cylinder coaxially disposed around a distal portion of the balun;a dielectric structure disposed substantially adjacent to a distal end of the electrically-conductive cylinder, wherein the dielectric structure longitudinally extends from the distal end of the electrically-conductive cylinder to a distal end of the electrically-conductive member;an elongated handle assembly coaxially disposed around a portion of the outer conductor at a distal end of the coaxial feedline, wherein the handle assembly is ...

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Номер записи: 72
25-04-2013 дата публикации

Suction Coagulator

Номер: US20130103033A1
Автор: Heard David N., Sartor Joe D.
Принадлежит: COVIDIEN LP

An electrosurgical suction coagulator is disclosed having improved thermal insulation between the active electrode and adjacent tissue. In embodiments, passive insulation is used to control the transfer of thermal energy from an electrosurgical electrode into surrounding tissue. Braided, closed-sell foam material, and open cell foam materials may be used to thermally insulate the outer surface of a suction coagulator shaft from an inner electrode. In embodiments, a suction coagulator shaft includes an external covering formed from open-cell foam material, which may be saturated with a coolant, such as water or saline, to increase the thermal mass of the shaft. In other embodiments, active cooling delivers coolant to the operative site. In yet other embodiments, a suction coagulator shaft includes a cooling jacket through which coolant is passed to actively cool the instrument. The improved electrosurgical suction coagulator disclosed herein may have a reduced operating surface temperatures which may result in reduced risk of undesirable effects to adjacent tissue, and may result in reduced operative times and improved patient outcomes. 1. An electrosurgical suction coagulator , comprising:a housing having proximal and distal ends and a substantially malleable elongated tube like shaft extending longitudinally from the distal end thereof, the substantially malleable elongated tube-like shaft including:a tube-like dielectric sheath;a tube-like conductor disposed coaxially through the tube-like dielectric sheath and configured to operably couple to a source of electrosurgical energy, the tube-like conductor having at a distal end thereof at least one tube aspiration port defined therein, the tube-like conductor being adapted at a proximal end thereof to operably couple to a source of aspiration suction;an electrode tip disposed distal to the tube-like conductor and separated from the tube-like conductor by an isolator configured to thermally insulate the electrode tip ...

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Номер записи: 73
02-05-2013 дата публикации

METHOD AND DEVICE FOR TREATMENT OF ARRHYTHMIAS AND OTHER MALADIES

Номер: US20130109987A1
Автор: Kunis Christopher Gerard, Robison Karmi N., Stobbs Gerald M.
Принадлежит: MEDICAL DEVICE INNOVATIONS INC.

Devices and methods are described for treating maladies such as atrial fibrillation. The devices and methods, in some implementations, include one or more rings formed of one or more windings. The rings provide mechanical pressure against an adjacent tissue, e.g., the tissue of a vessel, and the pressure works to inhibit the propagation of electrical signals along the vessel. The windings may be formed of a ribbon. Delivery systems are also provided. 1. An implant device for treating atrial fibrillation , comprising:a. a ring formed of at least one winding of a ribbon, wherein the width of the ribbon is between about 0.5 and 2.5 mm;b. wherein in an undeployed configuration the diameter of the ring is between about 10 to 60 mm and wherein in a deployed configuration the diameter of the proximal ring is between about 10 to 30 mm;{'sup': 2', '2, 'c. and wherein the ring is configured to deliver a pressure against adjacent tissue when deployed of between about 0.01 N/mmand 1.4 N/mm.'}2. The implant device of claim 1 , wherein the ring includes at least 1.5 windings of the ribbon.3. The implant device of claim 1 , wherein the ring is configured to deliver a force against adjacent tissue when deployed of between about 0.02 N/mmand 0.4 N/mm.4. The implant device of claim 1 , wherein the width of the ribbon is between about 0.25 and 2 mm.5. The implant device of claim 1 , wherein the implant device is coated with a material composition claim 1 , surface treatment claim 1 , coating claim 1 , or biological agent and/or drug.6. The implant device of claim 1 , wherein two rings are provided claim 1 , each ring formed of at least one winding of a ribbon claim 1 , wherein the width of the ribbon is between about 0.5 and 2.5 mm claim 1 , wherein in an undeployed configuration the diameter of the ring is between about 10 to 60 mm and wherein in a deployed configuration the diameter of the proximal ring is between about 10 to 30 mm claim 1 , and wherein the ring is configured to ...

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Номер записи: 74
02-05-2013 дата публикации

Gas-enhanced surgical instrument with mechanism for cylinder puncture

Номер: US20130110033A1
Автор: Kathy E. Rooks, Russell D. Hempstead
Принадлежит: COVIDIEN LP

A surgical instrument for providing an ionized gas to a surgical site includes a receptacle for at least one cylinder of pressurized surgical gas and a frame having a port near the distal end for emitting the surgical gas. A passageway extending between the receptacle and the port delivers the surgical gas to the port. A puncture assembly for rupturing a seal on at least one cylinder to release the surgical gas into the passageway includes at least one bank for storing mechanical energy which may include at least one spring. An actuator is operable to actuate the at least one bank release the mechanical energy. At least one puncture pin is operatively coupled to the at least one bank such that energy released by the at least one bank is effective to move the at least one puncture pin relative to at least one cylinder to rupture the seal.

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Номер записи: 75
02-05-2013 дата публикации

Cryogenic balloon device with radiofrequency tip

Номер: US20130110098A1
Автор: Jean-Pierre Lalonde
Принадлежит: MEDTRONIC CRYOCATH LP

An intravascular ablation device, including a flexible elongate body; an expandable element positioned on the elongate body; a radiofrequency or electroporation treatment segment located distally of the expandable element; a cryogenic coolant source in fluid communication with an interior of the expandable element; and a radiofrequency or electroporation energy source in communication with the radiofrequency or electroporation treatment segment.

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Номер записи: 76
02-05-2013 дата публикации

Expandable structure for off-wall ablation electrode

Номер: US20130110106A1
Автор: Leonard B. Richardson
Принадлежит: Boston Scientific Scimed Inc

Catheter systems and methods for making and using catheters systems are disclosed. An example catheter system may include a catheter having a proximal end, and a distal end, an electrode for tissue modulation disposed on a distal portion of the catheter. An expandable basket structure may be placed over a distal section of the catheter. The expandable basket structure may have a basket having a fixed end and a movable end. The movable end may be slidably coupled to the catheter. An actuating structure may be connected to the movable end for moving the expandable basket between a collapsed state and an expanded state.

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Номер записи: 77
02-05-2013 дата публикации

Grasping treatment device

Номер: US20130110155A1
Автор: Tomoyuki Tsuchiya, Yuki Kawaguchi
Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP

A grasping treatment device includes a jaw attached to a distal portion of a sheath rotatably around a rotation axis perpendicular to a longitudinal axis, and opening/closing relative to a distal portion of the probe in open/close directions perpendicular to the longitudinal axis and perpendicular to the rotation axis, and a support member provided between the probe and the sheath, and preventing contact between the probe and the sheath. The support member includes a most-distal support member located on the most distal direction side, and the position of the most-distal support member coinciding with the rotation axis of the jaw in directions parallel to the longitudinal axis.

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Номер записи: 78
09-05-2013 дата публикации

Pfo closing device

Номер: US20130116684A1
Автор: Yukitoshi Kato
Принадлежит: Terumo Corp

A PFO closing device for bringing the septum primum and the septum secundum into contact with each other and joining them together includes a clamping mechanism and energy supplying device. The clamping mechanism includes a needle part for puncturing the septum primum, and a clamping member for cooperating with the needle part in clamping therebetween tissue of the septum primum and the septum secundum. The energy supplying device supplies energy for joining the tissues clamped by the needle part and the clamping member. The clamping mechanism is mounted in a catheter so as to be protrudable from and retractable into the catheter.

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Номер записи: 79
09-05-2013 дата публикации

APPARATUSES FOR RENAL NEUROMODULATION AND ASSOCIATED SYSTEMS AND METHODS

Номер: US20130116685A1
Автор: Deem Mark, Demarais Denise, Gelfand Mark, GIFFORD, III Hanson, Levin Howard R., Sutton Douglas, Thai Erik
Принадлежит: Ardian, Inc.

Methods and apparatus are provided for renal neuromodulation using a pulsed electric field to effectuate electroporation or electrofusion. It is expected that renal neuromodulation (e.g., denervation) may, among other things, reduce expansion of an acute myocardial infarction, reduce or prevent the onset of morphological changes that are affiliated with congestive heart failure, and/or be efficacious in the treatment of end stage renal disease. Embodiments of the present invention are configured for percutaneous intravascular delivery of pulsed electric fields to achieve such neuromodulation. 1. An apparatus for renal neuromodulation , the apparatus comprising:a catheter configured for intravascular placement within a renal blood vessel of a human patient,wherein the catheter comprises an expandable distal basket formed from a plurality of elongate members and configured to allow blood to flow therethrough; anda plurality of electrodes arranged along the members of the basket and adapted to be positioned into contact with a wall of the renal blood vessel, wherein at least two of the electrodes are at different longitudinal positions along the basket,wherein the electrodes are configured to deliver an electric field across the wall to target renal nerves to achieve renal denervation.2. The apparatus of wherein the expandable basket is fabricated from a plurality of shape-memory wires or ribbons.3. The apparatus of wherein the members of the expandable basket are formed from an electrically conductive material coated with a dielectric material.4. The apparatus of wherein the expandable basket is formed from a slotted and/or laser cut hypotube.5. The apparatus of wherein the basket is collapsible for delivery to the renal blood vessel within a sheath claim 1 , and further wherein the basket is configured to self-expand into contact with the wall of the renal blood vessel upon removal from the sheath.6. The apparatus of wherein the electrodes are configured to be ...

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Номер записи: 80
09-05-2013 дата публикации

Ostial renal nerve ablation

Номер: US20130116687A1
Автор: Martin R. Willard
Принадлежит: Boston Scientific Scimed Inc

A catheter including an elongated shaft having a distal end and a proximal end, where the catheter includes a thermal element at the distal end thereof. The thermal element may be used in an ablation procedure or other procedure to heat a tissue adjacent a vessel. In some instances, the thermal element may be positioned in a first vessel and may operate to heat tissue adjacent a second vessel or adjacent an ostium between the first vessel and the second vessel. Further, the catheter may include an expandable portion on which the thermal element may be connected or positioned. The expandable portion(s) may comprise a basket or cage, a balloon, a memory shape and formable portion, and/or other mechanical expanders.

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Номер записи: 81
09-05-2013 дата публикации

ABLATION CATHETER

Номер: US20130116688A1
Автор: ASCONEGUY Alexander J., FLAHERTY J. Christopher, KUNIS Christopher G., ROMAN Ricardo David, WERNETH Randell L.
Принадлежит: MEDTRONIC ABLATION FRONTIERS LLC

Devices, systems and methods are disclosed for the mapping of electrical signals and the ablation of tissue. Embodiments include an ablation catheter that has an array of ablation elements attached to a deployable carrier assembly. The carrier assembly can be transformed from a compact, linear configuration to a helical configuration, such as to map and ablate pulmonary vein ostia. 1. A medical device , comprising:an elongate body defining a lumen therethrough;a shaft extending through the lumen; andan electrode array coupled to the elongate body at a first end and coupled to the shaft at a second end, wherein linear manipulation of the shaft causes the electrode array to transition from a first geometric configuration to a second configuration, and wherein rotational manipulation of the shaft causes the electrode array to transition from the second geometric configuration to a third configuration.2. The medical device according to claim 1 , further comprising a linear actuator coupled to the shaft for the linear manipulation thereof.3. The medical device according to claim 2 , further comprising a rotational actuator coupled to the shaft for the rotational manipulation thereof.4. The medical device according to claim 1 , wherein the electrode array includes a plurality of electrodes claim 1 , and wherein at least one of the plurality of electrodes defines an asymmetrical cross section.5. The medical device according to claim 1 , wherein the first geometric configuration is a substantially linear configuration claim 1 , the second geometric configuration includes one of a helical or circular configuration defining a first diameter claim 1 , and the third geometric configuration includes one of a helical or circular configuration defining a second diameter greater than the first diameter.6. The medical device according to claim 1 , wherein the first geometric configuration is a substantially linear configuration claim 1 , the second geometric configuration includes ...

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Номер записи: 82
16-05-2013 дата публикации

SURGICAL TIPS FOR PIEZOELECTRIC BONE SURGERY

Номер: US20130123774A1
Автор: Zadeh Homayoun H.
Принадлежит:

A series of tips for use with an ultrasonic or piezoelectric dental surgical device dental are used in osteotomy, ostectomy and osteoplasty procedures or any procedure requiring removal or shaping of bone or other hard tissues. In some embodiments, fissures are provided in a cutting end of the tip to facilitate osteotomy. The tips are shaped so that they are comfortable for the surgeon to use in a proper position, so that when a handpiece to which the tips are releasably attached is held in the conventional manner, the geometry of the osteotomy will be precise and desirable. When energized, the tips readily cut through bone or facilitate shaping of skeletal structures at the surgical site. Methods for use of the tips and systems in which the tips provided the cutting function are also described. 1. A piezoelectric surgical apparatus comprising:a handpiece comprising a tip having a base that releasably engages the handpiece, and wherein the tip has a cutting surface formed between a distal point of the tip and proximally along a length of the shaft to form a cutting surface along a length thereof; anda source of vibrational energy for transmitting piezoelectric energy to the cutting surface of the tip.2. The apparatus of claim 1 , wherein the tip has a fixture at the proximal end of the base for sealing the base to the handpiece.3. The apparatus of claim 1 , wherein the tip is further comprises an internal fluid communication pathway.4. The apparatus of claim 3 , wherein the base of the tip and the handpiece have a mating fixture for sealing the fluid communication pathway.5. The apparatus of further comprising:a controller having software to selectively apply piezoelectric energy through the handpiece to the tip.6. The apparatus of claim 1 , wherein the shaft has an indentation running distally from an area proximate to the distal point of the tip along the cutting surface of the shaft.7. The apparatus of claim 1 , wherein the shaft has a plurality of fissures ...

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Номер записи: 83
16-05-2013 дата публикации

Methods and Devices for Electrosurgery

Номер: US20130123779A1
Автор: Auge, II Wayne K., Morgan Roy E.
Принадлежит: NuOrtho Surgical Inc.

Devices and methods for electrolytic electrosurgery wherein a detector is located proximal to an active electrode on an electrosurgical probe, optionally disposed between the active electrode and a return electrode, the detector detecting at least on parameter relating to electrolysis. The detected parameter can include pH concentration, conductivity, impedance, ion, concentration, electrolytic gas consumption, electrolytic gas production, pressure or sound. The detected parameter can be employed in control systems to control systems to control activation or operation of the electrosurgical probe. 1. An apparatus for electrosurgery , comprising:at least one active electrode for inducing electrolysis in an electrolyzable environment; andat least one detector proximal to the at least one active electrode for detecting a parameter relating to electrolysis.2. The apparatus of claim 1 , wherein the detector detects pH concentration.3. The apparatus of claim 1 , wherein the detector detects conductivity.4. The apparatus of claim 1 , wherein the detector detects ion concentrations.5. The apparatus of claim 1 , wherein the detector detects gas production.6. The apparatus of claim 5 , wherein the detector detects gas production of oxygen or hydrogen.7. The apparatus of claim 1 , wherein the detector detects sound.8. The apparatus of claim 7 , wherein the detector detects sound at between about 10 kHz and about 600 kHz.9. The apparatus of claim 1 , wherein the detector detects changes in local pressure.10. The apparatus of claim 1 , further comprising a return electrode.11. The apparatus of claim 10 , wherein the detector is disposed between the at least one active electrode and the return electrode.12. The apparatus of claim 1 , further comprising a detection circuit for receiving a parameter detected by the detector.13. The apparatus of claim 12 , further comprising a control circuit providing an output control signal controlling an amount of power output to the at least ...

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Номер записи: 84
16-05-2013 дата публикации

SURGICAL SYSTEM

Номер: US20130123820A1
Автор: Honda Satoshi, SANAI Hideo, TANAKA Kazue
Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP.

A surgical system includes a surgical instrument including a conducting section transmitting ultrasound vibration generated by an ultrasound transducer to a distal end portion and transmitting a high-frequency output signal to the distal end portion, an ultrasound drive section outputting an ultrasound drive signal to the ultrasound transducer, a high-frequency output section outputting a high-frequency output signal to the conducting section, a detection section detecting an ultrasound impedance of a surgical site to which ultrasound energy and high-frequency energy are provided from the distal end portion by outputting both signals simultaneously to the surgical instrument, a determination section determining whether the detected ultrasound impedance is in a predetermined range, and a control section performing control to increase a high-frequency output value by a first predetermined amount or decrease the high-frequency output value by a second predetermined amount when the detected ultrasound impedance is out of the predetermined range. 1. A surgical system comprising:a grasping section grasping a living biological tissue;a first energy output section applying first energy to the living biological tissue grasped by the grasping section;a second energy output section applying second energy which is a kind of energy different from the first energy to the living biological tissue grasped by the grasping section;a detection section detecting a physical amount that specifies a changes of energy passed through the living biological tissue, the physical amount being obtained by applying the first energy or the second energy to the living biological tissue;a storage section storing another physical amount different from the physical amount detected by the detection section, the other physical amount being determined beforehand so as to correspond to the physical amount detected by the detection section;a determination section determining whether or not the physical ...

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Номер записи: 85
23-05-2013 дата публикации

CATHETER WITH BENDABLE TIP

Номер: US20130131489A1
Автор: Altmann Andres Claudio, Garcia Ariel, Govari Assaf
Принадлежит:

A medical probe includes a flexible insertion tube, having a distal end for insertion into a body cavity of a patient, and a distal tip, which is disposed at the distal end of the insertion tube and is configured to be brought into contact with tissue in the body cavity. A coupling member couples the distal tip to the distal end of the insertion tube and includes a tubular piece of an elastic material having a helical cut therethrough along a portion of a length of the piece. 1. A medical probe , comprising:a flexible insertion tube, having a distal end for insertion into a body cavity of a patient;a distal tip, which is disposed at the distal end of the insertion tube and is configured to be brought into contact with tissue in the body cavity; anda coupling member, which couples the distal tip to the distal end of the insertion tube and comprises a tubular piece of nitinol having a helical cut therethrough along a portion of a length of the piece.2. The probe according to claim 1 , wherein the tubular piece of nitinol has a length of approximately 10 mm with an outer diameter of approximately 2.0 mm and a wall thickness of approximately 0.05 mm3. The probe according to claim 1 , wherein the helical cut subtends an angle between 360° and 720° about an axis of the tubular piece.4. The probe according to claim 1 , wherein the coupling member is configured to bend in response to pressure exerted on the distal tip when the distal tip engages the tissue claim 1 , and wherein the helical cut has a width chosen so as to inhibit bending of the distal tip beyond a predetermined angular limit.5. The probe according to claim 1 , and comprising a position sensor within the distal tip.6. The probe according to claim 5 , wherein the position sensor is configured to sense a position of the distal tip relative to the distal end of the insertion tube claim 5 , which changes in response to deformation of the coupling member.7. The probe according to claim 5 , wherein the position ...

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Номер записи: 86
23-05-2013 дата публикации

Transmural Ablation Device

Номер: US20130131665A1
Автор: Al-Ahmad Amin, Chan Lauren Shui Sum, Clyburn Morgan, Ihnken Kai, Johnston William Francis, Kang Kathleen Lee, Prinz Friedrich B., Robbins Robert C., Sivanesan Kaartiga, Wang Paul J.
Принадлежит:

A transmural ablation device is provided to achieve endocardial and epicardial ablation at the same site but directed from the inner and outer surfaces of the heart to create a transmural lesion. By ablating from both sides of the heart tissue, it is possible to increase the depth of the lesion created and to increase the likelihood of a transmural lesion. Embodiments pertain to techniques to align the endocardial and epicardial ablation elements and techniques to position and move the endocardial and epicardial ablation elements along a predefined linear, curvilinear, or circular path. The ability to bring the epicardial and endocardial elements more closely or firmly with the underlying tissue is important in creating optimal lesions. Magnetic force attracts the epicardial and endocardial elements. 1. A transmural ablation device to create a transmural lesion of a tissue , comprising:a) a leading electrode assembly having a first electrode and a flexible elongated traveling structure configured for said first electrode to travel along the longitudinal axis of said flexible elongated traveling structure, and wherein at least part of said first electrode acts as a magnet; andb) a following electrode assembly, having a housing to support at one end a rolling ball configured to roll freely within said housing, wherein said rolling ball comprises an outer layer and an inner structure, wherein said outer layer is a non-magnetic layer, wherein said inner structure is a paramagnetic structure, and wherein said outer layer of said rolling ball and/or at least a part of said housing act as a second electrode,wherein said leading electrode assembly is positioned at one side of a tissue surface, wherein said following electrode assembly is positioned at the other side of said tissue surface, wherein the magnetic force of said first electrode attracts said rolling ball through said tissue surface, wherein said magnetic force enables rolling motion of said rolling ball along ...

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Номер записи: 87
23-05-2013 дата публикации

Deflectable renal nerve ablation catheter

Номер: US20130131667A1
Автор: James G. Hansen, Jason P. Hill, Joseph M. Thielen, Mark L. Jenson
Принадлежит: Boston Scientific Scimed Inc

Medical devices including catheters for renal nerve ablation and/or modulation as well as methods for making and using such devices are disclosed. An example catheter may, have a proximal region and a distal region. The catheter may be configured to shift between a first straightened configuration and a second deflected configuration. The catheter may also include an ablation member coupled to the distal region and a handle coupled to the proximal region. The handle may include an actuation member for shifting the catheter between the first configuration and the second configuration. A lock may be coupled to the handle that maintains the catheter in either the first configuration or the second configuration.

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Номер записи: 88
23-05-2013 дата публикации

Articulating ablation device and method

Номер: US20130131670A1
Автор: Mani N. Prakash
Принадлежит: Vivant Medical LLC

An ablation device including a handle portion, a shaft and at least one cable. The shaft extends distally from the handle portion and includes an inner conductor and an outer conductor that substantially surrounds at least a portion of the inner conductor. The cable extends from the handle portion along at least a portion of the shaft. The distal tip of the inner conductor is positionable distally beyond a distal-most end of the outer conductor. In response to movement of the at least one cable relative to the handle portion, the distal tip of the outer conductor is movable form a first position where the distal tip is substantially aligned with a longitudinal axis defined by the outer conductor to at least a second position where the distal tip is disposed at an angle relative to the longitudinal axis.

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Номер записи: 89
23-05-2013 дата публикации

Vacuum coagulation probes

Номер: US20130131673A9
Автор: Earl Wayne Rogers, James G. Whayne, Sidney D. Fleischman
Принадлежит: Ncontact Surgical Inc

A surgical device integrating a suction mechanism with a coagulation mechanism is provided for improving lesion creation capabilities. The device comprises an elongate member having an insulative covering attached about means for coagulating soft tissue. Openings through the covering expose regions of the coagulation-causing elements and are coupled to lumens in the elongate member which are routed to a vacuum source. A fluid source to passively transport fluid along the contacted soft tissue surface may be provided in order to push the maximum temperature deeper into tissue.

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Номер записи: 90
30-05-2013 дата публикации

METHODS AND DEVICES TO MODULATE THE AUTONOMIC NERVOUS SYSTEM VIA THE CAROTID BODY OR CAROTID SINUS

Номер: US20130138095A1
Автор: Gertner Michael
Принадлежит: Kona Medical, Inc.

In some embodiments, sympathetic nerves surrounding arteries or leading to organs are targeted with energy sources to correct or modulate physiologic processes. In some embodiments, different types of energy sources are utilized singly or combined with one another. In some embodiments, bioactive agents or devices activated by the energy sources are delivered to the region of interest and the energy is enhanced by such agents. 119-. (canceled)20. A method to modulate an autonomic nerve in a patient comprising:positioning an energy delivery device at a position for delivery of energy to a carotid body or carotid sinus;determining a position of the carotid body or the carotid sinus relative to the position of the energy delivery device;determining a dose and a direction for the energy using the determined position of the carotid body or the carotid sinus relative to the position of the energy delivery device; anddelivering the energy from the energy delivery device to the carotid body or the carotid sinus.21. The method of claim 20 , wherein the act of positioning the energy delivery is performed via percutaneous access.22. The method of claim 20 , wherein the act of positioning the energy delivery device comprises placing the energy delivery device in a jugular vein.23. The method of claim 20 , wherein the act of positioning the energy deliver device comprises placing the energy delivery device in a carotid artery.24. The method of claim 20 , wherein the energy delivery device is configured to deliver radiofrequency energy claim 20 , and the act of delivering the energy comprises delivering the radiofrequency energy.25. The method of claim 20 , wherein the energy is delivered from outside a skin of the patient to the carotid body or the carotid sinus.26. The method of claim 20 , wherein the energy is delivered to the carotid body claim 20 , not the carotid sinus.27. The method of claim 20 , further comprising determining a functioning of an autonomic nervous system ...

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Номер записи: 91
30-05-2013 дата публикации

Electrosurgical radio frequency energy transmission medium

Номер: US20130138098A1
Автор: James H. Orszulak
Принадлежит: Covidien AG

A system and method for transmitting electrosurgical energy from a generator to an electrosurgical instrument are provided. The electrosurgical system includes a generator adapted to generate electrosurgical energy for treating tissue. The generator includes one or more active output terminals which supply energy to the tissue. The active output terminals are operatively connected to one or more supply lines. The generator also includes one or more return output terminal which returns energy from the tissue. The return output terminals are operatively connected to at least one return line. The system also includes an electrosurgical instrument operatively connected to the one or more supply lines and one or more return electrodes operatively connected to one or more return lines. The system further includes an electrosurgical cable including one or more supply lines and one or more return lines. The one or more supply lines and one or more return lines are wound in a double helix fashion such that the electrical field along the cable is mitigated along the length thereof.

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Номер записи: 92
30-05-2013 дата публикации

ELECTROSURGICAL DEVICE WITH CONTROLLABLE ELECTRIC FIELD PROFILE

Номер: US20130138100A1
Автор: Bystryak Ilya, Cheung Lim
Принадлежит: Smith & Nephew, Inc.

An electrosurgical device includes a plurality of electrodes arranged to form a tissue treatment surface and a power supply. The power supply is configured to deliver a first drive signal with a first phase to at least a first one of the plurality of electrodes and a second drive signal with a second phase to at least a second one of the plurality of electrodes such that an electric field extends from the tissue treatment surface, where the first phase and the second phase are different. The power supply is further configured to receive an input from an operator of the electrosurgical device, and adjust the first phase or the second phase such that an aspect of the electric field extending from the tissue treatment surface changes in response to the input from the operator. 1. An electrosurgical device comprising:a plurality of electrodes arranged to form a tissue treatment surface, the plurality of electrodes comprising a first pair of electrodes and a second pair of electrodes, the first pair of electrodes including a first electrode and a second electrode and the second pair of electrodes including a third electrode and a fourth electrode; [ an electric field extends from the tissue treatment surface,', 'the first drive signal is delivered to the first electrode with a first phase and to the second electrode with a second phase that is out of phase from the first phase by a first phase difference, and', 'the second drive signal is delivered to the third electrode with a third phase and to the fourth electrode with a fourth phase that is out of phase from the third phase by a second phase difference, the first phase and the third phase being different; and, 'deliver a first drive signal to the first pair of electrodes and deliver a second drive signal to the second pair of electrodes such that, 'adjust the first phase and the second phase such that an aspect of the electric field extending from the tissue treatment surface changes, and maintain the first phase ...

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Номер записи: 93
30-05-2013 дата публикации

Open Vessel Sealing Instrument and Method of Manufacturing the Same

Номер: US20130138101A1
Автор: Duane E. Kerr
Принадлежит: TYCO HEALTHCARE GROUP LP

An open electrosurgical forceps is provided and includes a pair of first and second shaft members each having a jaw member at a distal end thereof. The jaw members are movable from a first position in spaced relation relative to one another to a subsequent position wherein the jaw members cooperate to grasp tissue therebetween. A cutting mechanism is adapted to selectively and removably couple to one of the first and second shaft members. The cutting mechanism includes a cutting trigger for selectively advancing a knife blade extending therefrom through a knife channel defined along one or both of the jaw members. The first shaft member includes a stop feature formed thereon and the second shaft feature includes a stop member formed thereon. The stop feature and stop member configured to selectively engage one another to limit rotation of the first and second shaft members with respect to one another.

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Номер записи: 94
30-05-2013 дата публикации

Electrosurgical unit with micro/nano structure and the manufacturing method thereof

Номер: US20130138103A1
Автор: Cen-Ying Lin, Chung-Wei Cheng, Keng-Liang Ou, Pei-Wen PENG, Weng-Peng TSENG
Принадлежит: Industrial Technology Research Institute ITRI, Taipei Medical University TMU

An electrosurgical unit having micro/nano structure formed thereon and the manufacturing method thereof are disclosed, in which the electrosurgical unit is formed by the irradiation of a laser beam upon a blade so as to have a hybrid of micro/nano elements formed on the surface of the blade. The application of the hybrid of micro/nano elements on the surface of the blade has proven to be a valuable asset not only in providing a non-stick surface and a good heat dissipation ability to the blade, but also in providing a electrosurgical blade that will not release any toxic material under high temperature.

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Номер записи: 95
06-06-2013 дата публикации

DUAL MODE ULTRASOUND TRANSDUCER (DMUT) SYSTEM AND METHOD FOR CONTROLLING DELIVERY OF ULTRASOUND THERAPY

Номер: US20130144165A1
Автор: Ballard John R., Casper Andrew J., Ebbini Emad S., Liu Dalong
Принадлежит:

A dual-mode ultrasound system provides real-time imaging and therapy delivery using the same transducer elements of a transducer array. The system may use a multichannel driver to drive the elements of the array. The system uses a real-time monitoring and feedback image control of the therapy based on imaging data acquired using the dual-mode ultrasound array (DMUA) of transducer elements. Further, for example, multimodal coded excitation may be used in both imaging and therapy modes. Still further, for example, adaptive, real-time refocusing for improved imaging and therapy can be achieved using, for example, array directivity vectors obtained from DMUA pulse-echo data. 1. A dual mode ultrasound transducer system comprising:an array of ultrasound transducer elements, the ultrasound transducer elements configured to deliver a plurality of sequential therapy bursts of ultrasonic energy to at least a portion of a target region and to transmit/receive imaging ultrasonic energy to/from the target region; and control conveyance of imaging signals to/from one or more of the plurality of ultrasound transducer elements;', 'generate treatment region image data usable to identify at least one or more target points within a target region based on imaging signals conveyed to/from one or more of the plurality of ultrasound transducer elements;', 'generate therapy signals to drive one or more of the plurality of ultrasound transducer elements to deliver a plurality of sequential therapy bursts of ultrasonic energy to at least one of the one or more target points in the target region; and', 'generate control image data based on imaging signals from one or more of the plurality of ultrasound transducer elements during and/or following delivery of each therapy burst of a plurality of sequential therapy bursts, wherein the control image data generated during and/or following delivery of a therapy burst is used to generate therapy signals to drive one or more of the plurality of ...

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Номер записи: 96
06-06-2013 дата публикации

METHOD AND APPARATUS FOR MAKING ULTRASONIC IRRADIATION PLAN BASED ON ANATOMICAL FEATURES

Номер: US20130144194A1
Автор: AHN Min-su, BANG Won-chul
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method of making an ultrasonic irradiation plan includes receiving image data representing anatomical features of a target object, generating information about at least one portion of the target object that is to be irradiated with ultrasound from the image data representing the anatomical features of the target object, and making an ultrasonic irradiation plan for irradiating the target object with ultrasound by simulating irradiating the target object with ultrasound based on the generated information. 1. A method of making an ultrasonic irradiation plan , the method comprising:receiving image data representing anatomical features of a target object;generating information about at least one portion of the target object that is to be irradiated with ultrasound from the image data representing the anatomical features of the target object; andmaking an ultrasonic irradiation plan for irradiating the target object with ultrasound by simulating irradiating the target object with ultrasound based on the generated information.2. The method of claim 1 , wherein the generating of the information comprises designating any one or any combination of a first portion of the target object that is to be irradiated with the ultrasound claim 1 , a second portion of the target object that the ultrasound is to avoid claim 1 , and a third portion of the target object that has a characteristic of disrupting propagation of the ultrasound.3. The method of claim 2 , wherein the making of the ultrasonic irradiation plan comprises:determining whether the ultrasound collides with the second portion or the third portion while virtually irradiating the first portion with the ultrasound using a virtual transducer; anddetermining a location of the virtual transducer at which irradiating the target object with the ultrasound is allowed based on a result of the determining of whether the ultrasound collides with the second portion or the third portion.4. The method of claim 3 , further ...

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Номер записи: 97
06-06-2013 дата публикации

Renal neuromodulation methods and devices for treatment of polycystic kidney disease

Номер: US20130144251A1
Автор: Paul A. SOBOTKA
Принадлежит: Medtronic Ardian Luxembourg SARL

Methods for treating polycystic kidney disease with therapeutic renal neuromodulation and associated systems and methods are disclosed herein. One aspect of the present technology is directed to methods that at least partially inhibit sympathetic neural activity in nerves proximate a renal artery of a kidney of a patient. One or more measurable physiological parameter corresponding to the polycystic kidney disease can thereby be reduced. Moreover, central sympathetic drive in the patient can be reduced in a manner that treats the patient for the polycystic kidney disease. Renal sympathetic nerve activity can be modulated along the afferent and/or efferent pathway. The modulation can be achieved, for example, using an intravascularly positioned catheter carrying a neuromodulation assembly, e.g., a neuromodulation assembly configured to cryotherapeutically cool the renal nerve or to deliver an energy field to the renal nerve.

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Номер записи: 98
06-06-2013 дата публикации

TREATMENT OF POLYCYSTIC OVARY SYNDROME USING RENAL NEUROMODULATION AND ASSOCIATED SYSTEMS AND METHODS

Номер: US20130144283A1
Автор: Barman Neil C.
Принадлежит: Medtronic Ardian Luxembourg S.a.r.l.

Methods for treating polycystic ovary syndrome with therapeutic renal neuromodulation and associated systems and methods are disclosed herein. The polycystic ovary syndrome can be associated, for example, with a condition including at least one of oligo/amenorrhea, infertility, hirsutism, obesity, metabolic syndrome, insulin resistance, and increased cardiovascular risk profile. One aspect of the present technology is directed to methods that at least partially inhibit sympathetic neural activity in nerves proximate a renal artery of a kidney of a patient. Central sympathetic drive in the patient can thereby be reduced in a manner that treats the patient for the polycystic ovary syndrome. Renal sympathetic nerve activity can be modulated along the afferent and/or efferent pathway. The modulation can be achieved, for example, using an intravascularly positioned catheter carrying a therapeutic assembly, e.g., a therapeutic assembly configured to cryotherapeutically cool the renal nerve or to deliver an energy field to the renal nerve. 1. A method of treating a human patient diagnosed with polycystic ovary syndrome , comprising:intravascularly positioning a neuromodulation assembly within a renal blood vessel of the patient and adjacent to a renal nerve of the patient;at least partially inhibiting sympathetic neural activity in nerves proximate a renal artery of a kidney of the patient; andreducing central sympathetic drive in the patient in a manner that treats the patient for the polycystic ovary syndrome.2. The method of wherein reducing central sympathetic drive in the patient in a manner that treats the patient for the polycystic ovary syndrome includes reducing expansion of claim 1 , maintaining the size of claim 1 , or reducing the size of an ovarian cyst in the patient.3. The method of wherein reducing central sympathetic drive in the patient in a manner that treats the patient for the polycystic ovary syndrome includes reducing the size of an ovarian cyst in ...

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Номер записи: 99
06-06-2013 дата публикации

IRRIGATION CATHETER

Номер: US20130144288A1
Автор: Ryan Garrett
Принадлежит: CATHRX LTD

An irrigation catheter includes a handle, a catheter sheath with at least one ablation electrode proximal the distal end of the catheter sheath and a stylet for deflecting the distal end of the catheter sheath. The ablation electrode includes at least one irrigation opening in it. The irrigation catheter further includes a fluid-carrying formation formed on the catheter sheath under the ablation electrode. The fluid-carrying formation is in fluid communication with the irrigation lumen of the catheter sheath so that fluid is conveyed from the irrigation lumen to the irrigation opening. 1. An irrigation catheter , comprising:a tubular member comprising a non-conductive material having a proximal end and a distal end, the tubular member having a plurality of lumens extending from the proximal end to the distal end of the tubular member, one lumen of the plurality of lumens being an irrigation lumen;at least one ablation electrode arranged on the tubular member proximally of the distal end of the tubular member, the at least one ablation electrode having at least one irrigation opening defined in the at least one ablation electrode; anda fluid-carrying formation arranged in the tubular member beneath the at least one ablation electrode, the fluid-carrying formation being in fluid flow communication with the irrigation lumen of the tubular member for conveying fluid from the irrigation lumen to the at least one irrigation opening of the at least one ablation electrode.2. The catheter of claim 1 , further comprising an end ablation electrode carried at the distal end of the tubular member claim 1 , and the at least one ablation electrode is at least one further electrode arranged proximally of the end ablation electrode.3. The catheter of claim 2 , wherein the end ablation electrode has at least one irrigation opening defined in it in communication with the irrigation lumen of the tubular member.4. The catheter of claim 2 , wherein the at least one ablation electrode ...

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Номер записи: 100