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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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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 12692. Отображено 100.
05-01-2012 дата публикации

Centrifugal pump apparatus

Номер: US20120003108A1
Автор: Hiroyuki Yamada, Ken Sugiura, Kenichi Suzuki, Takayoshi Ozaki
Принадлежит: NTN Corp, Terumo Corp

A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, first and second permanent magnets provided in one surface and the other surface of the impeller respectively, a third permanent magnet provided in an inner wall of the blood chamber, and a magnetic element and a coil for driving the impeller to rotate with a diaphragm being interposed. First and second grooves for hydrodynamic bearing different in shape and depth from each other are formed in the inner wall of the blood chamber facing the impeller, and third and fourth grooves for hydrodynamic bearing different in shape and depth from each other are formed in the diaphragm facing the impeller. The second and fourth grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller is activated to rotate, while the first and third grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller steadily rotates.

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Номер записи: 1
05-01-2012 дата публикации

Physiological Demand Responsive Control System

Номер: US20120004497A1
Автор: Peter Joseph Ayre
Принадлежит: Thoratec LLC

A demand responsive physiological control system for use with a rotary blood pump; said system including a pump controller which is capable of controlling pump speed of said pump; said system further including a physiological controller, and wherein said physiological controller is adapted to analyze input data relating to physiological condition of a user of said pump; and wherein said physiological controller determines appropriate pumping speed and sends a speed control signal to said pump controller to adjust pump speed; said system further including a physiological state detector which provides said input data indicative of at least one physiological state of said user, in use, to said physiological controller.

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Номер записи: 2
26-01-2012 дата публикации

Controlling implanted blood pumps

Номер: US20120022645A1
Автор: David J. Burke
Принадлежит: Thoratec LLC

A blood pump controller includes a microcontroller and a communication interface. The microcontroller is configured to communicate with various types of blood pump communication modules. The microcontroller is further configured to determine, based on communication with a particular type of blood pump communication module, the particular type of blood pump communication module communicated with. The microcontroller is further configured to select, based on the determination of the particular type of blood pump communication module, control logic used to control the particular type of blood pump communication module. The microcontroller is further configured to generate, based on the selected control logic, commands for controlling the blood pump communication module. The communication interface is configured to connect the microcontroller to the particular type of blood pump communication module.

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Номер записи: 3
02-02-2012 дата публикации

Electrical connection system between an electrical power supply device and an implanted medical device

Номер: US20120028490A1
Автор: Pierre Sabin, Pierre-Yves Litzler
Принадлежит: Individual

The invention concerns an electrical connection system to electrically connect an internal electrical device ( 2 ) designed to be positioned inside an animal's body with an external electrical device ( 3 ) designed to be positioned outside the animal's body, said system having a cable ( 4 ) designed to be positioned at least partially inside the animal's body and enclosing at least one electrical wire, said cable ( 4 ) comprising at one of its ends a first connection means ( 5 ) to connect said at least one electrical wire with external electrical device ( 3 ), characterized in that cable ( 4 ) further has at its other end a second connection means ( 1 ) designed to be placed inside the animal's body, second connection means ( 1 ) having connectors to allow an electrical connection between said at least one electrical wire of cable ( 4 ) and internal electrical device ( 2 ), the second connection means ( 1 ) further having additional connectors to allow an electrical connection between at least one electrical wire external to said cable ( 4 ) and internal electrical device ( 2 ), the connectors of second connection means ( 1 ) permitting a removable connection of the electrical wires.

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Номер записи: 4
16-02-2012 дата публикации

Article Comprising an Impeller II

Номер: US20120039713A1
Автор: J. Michael Shifflette
Принадлежит: NuCardia Inc

An impeller for use in conjunction with a percutaneously-insertable blood pump or other rotatable equipment includes a blade that is segmented into a plurality of overlapping or abutting bladelets. In some embodiments, the bladelets are foldable and one side of each bladelet is concave.

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Номер записи: 5
16-02-2012 дата публикации

Method And Apparatus For Long-Term Assisting A Left Ventricle To Pump Blood

Номер: US20120041255A1
Автор: Reynolds M. Delgado, Iii
Принадлежит: Procyrion Inc

A method and apparatus for long-term assisting the left ventricle of a heart to pump blood is disclosed which includes at least one transluminally deliverable pump and a transluminally deliverable support structure which secures the at least one pump within the aorta for long-term use.

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Номер записи: 6
08-03-2012 дата публикации

Method and device for monitoring and improving arteriogenesis

Номер: US20120059245A1
Автор: Axel Pries, Ferdinand Lenoble, Ivo Buschmann
Принадлежит: Charite Universitaetsmedizin Berlin

A method for determining an arteriovascular condition of a subject having an arterial blood flow is shown. The method involves determining a temporal progression of an instantaneous blood flow condition of the arterial blood flow as well as deriving a slew rate of the temporal progression during an increase of the temporal progression. In addition, an arteriovascular condition indicator device is shown, which comprises: an input for receiving an input signal representing an instantaneous arterial blood flow condition of a subject and a slew rate monitor connected to the input. A corresponding control device for providing an activation signal is also shown. The control device comprises a maximum detector connected to the slew rate monitor. A method for stimulation of arteriogenesis is also shown, wherein a temporal progression of an instantaneous blood flow condition is monitored, a slew rate of the temporal progression is derived, and the maximum of the slew rate is determined. An external pressure is applied repeatedly to the arteriovascular section in synchronization with the occurrence of the determined maximum.

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Номер записи: 7
08-03-2012 дата публикации

Magnetic Ventricular Connector

Номер: US20120059398A1
Автор: Jeffrey R. Gohean, Raul G. Longoria, Richard W. Smalling, Thomas D. Pate
Принадлежит: University of Texas System

A magnetic coupling for connecting a cannula to the apex of a ventricle comprising a first member having a first orifice, a first magnetic material attached to the first member, a means for attaching a cannula to the first member, a second member having a second orifice, a second magnetic material attached to the second member, a means for attaching the second member to a ventricle, so that when the first magnet is placed in proximity to the second magnet the first member and second member are held substantially concentric by magnetic force to allow for the communication of fluid between the first and second orifices.

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Номер записи: 8
15-03-2012 дата публикации

Shrouded thrust bearings

Номер: US20120063942A1
Автор: Charles R. Shambaugh, Jeffrey A. Larose
Принадлежит: Heartware Inc

A rotary blood pump includes a casing defining a pumping chamber. The pumping chamber has a blood inlet and a tangential blood outlet. One or more motor stators are provided outside of the pumping chamber. A rotatable impeller is within the pumping chamber and is adapted to cause blood entering the pumping chamber to move to the blood outlet. The impeller has one or more magnetic regions. The impeller is radially constrained in rotation by magnetic coupling to one or more motor stators and is axially constrained in rotation by one or more hydrodynamic thrust bearing surfaces on the impeller.

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Номер записи: 9
03-05-2012 дата публикации

Cassette system integrated apparatus

Номер: US20120106289A1
Автор: Brian Tracey, James D. Dale, Jason A. Demers, Kevin L. Grant, Michael J. Wilt
Принадлежит: Deka Products LP

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.

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Номер записи: 10
07-06-2012 дата публикации

Radiopaque cannula marker

Номер: US20120142995A1
Автор: Marie-Eve Mongeau, Stephen Vaughan, Zhenghong Tao
Принадлежит: Abiomed Inc

A method is disclosed of applying a radiopaque marker to a cannula for use with an intracardiac pump, the method including: obtaining a band of radiopaque polymer material; placing the band around an outer diameter of the cannula, the cannula including a flexible tubular wall formed around and supported by a coil of shape memory material; placing a heat shrink tube around the band and the cannula; heating the band and the polymer tube to: soften the band, cause the heat shrink tube to shrink and apply force on the softened band towards the cannula, and cause the softened band to be welded to the cannula to form a radiopaque marker in a portion of the tubular wall; and removing the heat shrink tube.

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Номер записи: 11
07-06-2012 дата публикации

Implantable driver with non-invasive transmural powering device for cardiac assist and combined assist and support devices

Номер: US20120142996A1
Автор: John C. Criscione
Принадлежит: CORINNOVA Inc, TEXAS A&M UNIVERSITY SYSTEM

The present invention an implantable, sub-cutaneous, bellows-like device with one plate proximal (or superficial) to the skin surface and the other plate distal (or deep) to the skin surface having a component of a pneumatic/hydrulic driver for an implantable medical device such as a cardiac assist, cardiac support, or combined cardiac assist and support device and inducible magnet material on the distal plate of the bellows that can be magnetically drawn towards the proximal plate by the action of a magnet outside the body to contract the bellows or pressurize the fluid in the bellows.

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Номер записи: 12
02-08-2012 дата публикации

Method and apparatus for machine error detection by combining multiple sensor inputs

Номер: US20120194335A1
Автор: James M. Brugger, Jeffrey H. Burbank
Принадлежит: Nxstage Medical Inc

One of the most significant safety concerns in the automation of extracorporeal blood treatments such as dialysis is the risk of blood leakage. Extracorporeal blood treatment systems draw blood at such a high rate that a loss of integrity in the blood circuit can be serious. There are a number of mechanisms for detecting and preventing leaks, but none is perfect. This tends to limit the use of such equipment in unsupervised settings, such as the home will be limited. Some leak detection schemes can be made sensitive enough to detect the barest of leaks, but when this is done, they result in too many false positives. The invention combines information from multiple inputs to enhance sensitivity in leak detection and reduce the problem of false positives.

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Номер записи: 13
27-09-2012 дата публикации

Device And A Method For Augmenting Heart Function

Номер: US20120245678A1
Автор: Jan Otto Solem
Принадлежит: Synergio AG

A device, a kit and a method are presented for permanently augmenting the pump function of the left heart. The basis for the presented innovation is an augmentation of the physiologically up and down movement of the mitral valve during each heart cycle. By means of catheter technique, minimal surgery, or open heart surgery implants are inserted into the left ventricle, the mitral valve annulus, the left atrium and adjacent tissue in order to augment the natural up and down movement of the mitral valve and thereby increasing the left ventricular diastolic filling and the piston effect of the closed mitral valve when moving towards the apex of said heart in systole and/or away from said apex in diastole.

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Номер записи: 14
25-10-2012 дата публикации

Medical fluid pumping systems and related devices and methods

Номер: US20120271226A1
Автор: Deloy Lindley, Gurpreet Singh, Ignacio Serrato, Kulwinder S. Plahey, Michael David Young, Sean Farrell, Tri Ly, Venugopal Raghavendra Ghatikar
Принадлежит: Fresenius Medical Care Holdings Inc

This disclosure relates to medical fluid pumping systems and related devices and methods. In some aspects, a medical fluid pumping system includes a medical fluid pumping machine including a piston head that can be linearly displaced and a medical fluid cassette that can be secured to the medical fluid pumping machine. The medical fluid cassette includes a fastening member attached to a region of a flexible membrane overlying a fluid pump chamber, and the piston head is configured to be mechanically connected to the fastening member of the cassette.

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Номер записи: 15
08-11-2012 дата публикации

Cardiac assistance device and method for the control thereof

Номер: US20120283506A1
Автор: Markus Meister, Stephen Wildhirt
Принадлежит: AJDUCOR UG (HAFTUNGSBESCHRÄNKT)

The invention relates to a cardiac assistance device having a supporting component (14) which surrounds the heart and on the inside of which a plurality of adjacent inflatable and deflatable chambers (126, 226, 326) are provided, via which an inside wall can be displaced inward, the chambers (126, 226, 326) having a fluidic connection to at least one pump (80) via lines. A plurality of supply valves on the supply side are arranged between the pump (80) and the chambers (126, 226, 326). At least individual chambers (126, 226, 326) or groups of chambers (126, 226, 326) are assigned dedicated supply valves, in order to drive the chambers (126, 226, 326) independently individually or in groups.

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Номер записи: 16
22-11-2012 дата публикации

Device and a method for measuring fluid-mechanically effective material parameters of a fluid

Номер: US20120291527A1
Автор: Andreas Arndt, Kurt Graichen, Peter Nuesser
Принадлежит: Berlin Heart GmbH

A method and a device for the measurement of fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element ( 2 ) which is mounted in a magnet bearing ( 10, 10 a, 11, 11 a ), according to the invention, envisages the delivery element ( 2 ) of the fluid pump being excited into an oscillation by way of an excitation device ( 16, 44 ), wherein the oscillation parameters as well as, as the case may be, the oscillation behaviour is measured, and parameters of the fluid are determined from this.

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Номер записи: 17
22-11-2012 дата публикации

Methods and devices for diastolic assist

Номер: US20120296153A1
Автор: Celina Yong, Freddy Abnousi, Michael D. Laufer
Принадлежит: NSYZ

The devices and method described herein allow for therapeutic damage to increase volume in these hyperdynamic hearts to allow improved physiology and ventricular filling and to reduce diastolic filling pressure by making the ventricle less stiff.

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Номер записи: 18
06-12-2012 дата публикации

Ventricular assist device cannula and ventricular assist device including the same

Номер: US20120310037A1
Автор: Byoung Goo Min, Min Ho Han, Mun Soo KIM, Seong Min KANG, Sung Min Park, Sung Wook Choi, Yoo Seok Kim
Принадлежит: LibraHeat Inc V

Provided is a ventricular assist device cannula, and more particularly, a ventricular assist device cannula with electrodes. An exemplary embodiment of the present invention provides a ventricular assist device cannula with electrodes, including: a connecting tube connecting an incision of a body tissue and a ventricular assist device so that blood can flow; and electrodes connected with the connecting tube and contacting the incision of the body tissue to transfer an electric signal to the body tissue.

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Номер записи: 19
24-01-2013 дата публикации

Cassette system integrated apparatus

Номер: US20130022483A1
Автор: Brian Tracey, James D. Dale, Jason A. Demers, Kevin L. Grant, Michael J. Wilt
Принадлежит: Deka Products LP

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.

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Номер записи: 20
31-01-2013 дата публикации

Medical functional device, treatment apparatus and method

Номер: US20130025692A1
Автор: Alexander Heide, Arne PETERS, Christoph WIKTOR, Juergen Klewinghaus, Robin Partenfelder
Принадлежит: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

A medical functional device includes at least one first fluid system for receiving at least one medical fluid, at least one first conveying device for conveying the medical fluid, at least one second fluid system for receiving at least one operating fluid, and at least one second conveying device for operating the at least first conveying device, in which the first conveying device is arranged such as to be actuated by means of the operating fluid. A treatment apparatus and a method are also described.

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Номер записи: 21
31-01-2013 дата публикации

Method as well as apparatuses for detecting a permeability or patency in a tube which is inserted in a tube pump

Номер: US20130030345A1
Автор: Joachim Manke, Soeren Gronau
Принадлежит: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

The present invention relates to a method for detecting a permeability or patency of a section of an extracorporeal tube which is inserted in a tube pump, a detection device for executing a method according to the present invention, a medical treatment apparatus which comprises at least one detection device and/or is in signal transmission with it or is connected for signal transmission with it, a digital storage medium, a computer program product as well as a computer program.

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Номер записи: 22
07-02-2013 дата публикации

Methods and systems for treatment of acute ischemic stroke

Номер: US20130035628A1
Автор: Alan K. Schaer, Gregory M. Hyde, Michi E. Garrison, Tony M. Chou
Принадлежит: Silk Road Medical Inc

Described are methods and systems for transcervical access of the cerebral arterial vasculature and treatment of cerebral occlusions, including ischemic stroke. The methods and devices may include methods and devices which may provide aspiration and passive flow reversal, those which protect the cerebral penumbra during the procedure to minimize injury to brain, as well as distal catheters and devices to remove an occlusion. The methods and devices that provide passive flow reversal may also offer to the user a degree of flow control. Devices and methods which provide a way to securely close the access site in the carotid artery to avoid the potentially devastating consequences of a transcervical hematoma are also described.

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Номер записи: 23
14-02-2013 дата публикации

Blood treatment systems and methods

Номер: US20130037485A1
Автор: Brian K. YEE, Catharine N. Flynn, Dirk A. Van Der Merwe, Jonathan P. Rosse, Kevin L. Grant, Michael J. Wilt, Todd A. Ballantyne
Принадлежит: Deka Products LP

Dialysis systems are disclosed comprising new fluid flow circuits. Systems may include blood and dialysate flow paths, where the dialysate flow path includes balancing, mixing, and/or directing circuits. Dialysate preparation may be decoupled from patient dialysis. Circuits may be defined within one or more cassettes. The fluid circuit fluid flow paths may be isolated from electrical components. A gas supply in fluid communication with the dialysate flow path and/or the dialyzer able to urge dialysate through the dialyzer and urge blood back to the patient may be included for certain emergency situations. Fluid handling devices, such as pumps, valves, and mixers that can be actuated using a control fluid, may be included. Control fluid may be delivered by an external pump or other device, which may be detachable and/or generally rigid, optionally with a diaphragm dividing the device into first and second compartments.

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Номер записи: 24
28-02-2013 дата публикации

Expandable vascular pump

Номер: US20130053623A1
Автор: Don W.E Evans, Douglas Wahnschaffe, Mark Schneider, Reed Houge, Scott Klimek
Принадлежит: Individual

A pump for inducing flow within a vascular system comprises a cannula having a first configuration for deployment within the vascular system and a second configuration for directing the fluid flow within the vascular system, where the second configuration has a greater diameter than the first configuration. An impeller is configured to induce the fluid flow by rotation about an axis. The impeller has a first radius in the first configuration and a second radius in the second configuration, where the second radius is greater than the first radius.

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Номер записи: 25
28-02-2013 дата публикации

Device for supplying energy to hydraulically or pneumatically actuated active implants

Номер: US20130053980A1
Автор: Annika Rybak, Bernhard Vodermayer, Cornelia Riecke, Matthias Grzeski, Thomas Schmid
Принадлежит: Deutsches Zentrum fuer Luft und Raumfahrt eV

A device for supplying energy to hydraulically or pneumatically actuated active implants. The device can take the form of pumping systems, metering systems, and/or occlusion systems. The device comprises a receiving coil for generating an electric voltage due to a changing magnetic flux that is generated by an extracorporeal transmitting coil. The receiving coil is designed such that said coil can be implanted into subcutaneous tissue. Furthermore, an electric line is provided for transmitting the electric current that is generated by the receiving coil from the receiving coil to the active implant. The device further comprises a compensation container for temporarily receiving a transmitter fluid, by means of which the active implant is activated. The compensating container is mounted on the receiving coil and/or on the electric line such that the compensating container together with the receiving coil and/or the electric line can be implanted into a common tissue or muscle pocket in the body of a patient.

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Номер записи: 26
14-03-2013 дата публикации

Implantable cardiac therapy device

Номер: US20130066142A1
Автор: Ingo Weiss, Thomas Doerr
Принадлежит: Biotronik SE and Co KG

A cardiac therapy device having a cardiac assist pump, a defibrillation unit, and a control unit, which is connected to the cardiac assist pump and the defibrillation unit to control them. The cardiac assist pump is implemented in case of use to pump blood from a ventricle into an associated artery and thus relieve the respective ventricle. The defibrillation unit is implemented for automatic defibrillation of a ventricular fibrillation and the control unit is implemented to activate the cardiac assist pump and the defibrillation unit in a coordinated manner in case of a ventricular fibrillation such that the cardiac assist pump first increases its performance to initially cause a pressure relief of at least one assisted ventricle in case of use and the defibrillation unit only subsequently delivers a defibrillation shock, when a ventricular pressure relief is provided.

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Номер записи: 27
14-03-2013 дата публикации

Intravascular blood pump and method of implantation

Номер: US20130066421A1
Автор: Lisa ENSZ, Martin STRUEBER
Принадлежит: Heartware Inc

A blood pump is implantable within the vasculature, such as within the pulmonary artery. The pump may project through a native valve such as the pulmonary valve. In use, the pump opposes retrograde flow and thus acts as a replacement for the native valve. The pump may be an axial flow pump having a generally tubular housing adapted to fit within the space proximal to the bifurcation of the pulmonary artery while projecting only slightly proximally of the annulus of the native pulmonary valve.

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Номер записи: 28
28-03-2013 дата публикации

System for use in administering inhaled nitric oxide gas

Номер: US20130074839A1
Автор: James S. Baldassarre, Ralf Rosskamp
Принадлежит: INO THERAPEUTICS LLC

Disclosed are systems for use in administering inhaled nitric oxide gas as a therapeutic treatment, where the systems reduce the risk of inducing an increase in pulmonary capillary wedge pressure leading to pulmonary edema in neonatal patients who have hypoxic respiratory failure and are candidates for inhaled nitric oxide treatment, the system comprising a source of pharmaceutically acceptable nitric oxide gas for inhalation, a delivery device suitable for delivering nitric oxide gas from the source to a term or near-term neonate patient, and instructions for use in operating the system.

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Номер записи: 29
28-03-2013 дата публикации

Pumping cassette

Номер: US20130074959A1
Автор: Brian D. Tracey, James D. Dale, Jason A. Demers, Kevin L. Grant, Michael J. Wilt
Принадлежит: Deka Products LP

A pump cassette is disclosed. The pump cassette includes a housing having at least, one fluid inlet line and at least one fluid outlet line. The cassette also includes at least one reciprocating pressure displacement membrane pump within the housing. The pressure pump pumps a fluid from the fluid inlet line to the fluid outlet line. A hollow spike is also included on the housing as well as at least one metering pump The metering pump is fluidly connected to the hollow spike on the housing and to a metering pump fluid line. The metering pump fluid line is fluidly connected to the fluid outlet line.

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Номер записи: 30
18-04-2013 дата публикации

Medical device comprising an artificial contractile structure

Номер: US20130096586A1
Автор: Daniel Hayoz, Enzo Borghi, Marco Wieland, Martin Horst, Piergiorgio Tozzi
Принадлежит: MYOPOWERS MEDICAL TECHNOLOGIES SA

A medical device including artificial contractile structures generally devised to be used in the medical field. Such structures may be advantageously used to assist the functioning of an organ. The medical device includes an artificial contractile structure having at least two contractile elements ( 100 ) adapted to contract an organ, in such way that each of the contractile elements ( 100 ) can be in a resting or in an activated position, independently of the position of each other, the activated position being defined with the contractile element ( 100 ) constricting the organ and the resting position being defined with the contractile element ( 100 ) not constricting the organ, and at least one actuator designed to activate the contractile structure. Each contractile element ( 100 ) is connected to an adjacent contractile element ( 100 ), while remaining flexible one with respect to the other.

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Номер записи: 31
25-04-2013 дата публикации

Methods and apparatus for organ support

Номер: US20130102059A1
Автор: Donald G. Faulkner, John L. Robertson
Принадлежит: Biomedinnovations LLC

An organ support apparatus includes: (a) a fluid circuit defining upstream and downstream legs adapted to be connected to an organ to be supported; (b) a circulation pump connected to the fluid circuit for circulating a process fluid through the fluid circuit and the organ; and (c) a first waveform generator connected to the fluid circuit for impressing a preselected pressure waveform on the process fluid.

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Номер записи: 32
25-04-2013 дата публикации

Slide device, mechanical seal, rotary device, pump and auxiliary artificial heart system

Номер: US20130102834A1
Автор: Daisuke Suzuki, Hideki Kanebako, Keiichiro KANESHIMA, Koki Kanda, Koshi Adachi, Shinji Kobayashi, Takayuki Miyakoshi, Tomoya Kitano
Принадлежит: Sun Medical Technology Research Corp, Tohoku University NUC

Provided is a slide device which can reduce a frictional force more than a conventional slide device when used in an aqueous liquid containing a blood component. In a slide device which includes: a fixed-side slide member having a slide surface; and a rotary-side slide member having a slide surface, the slide device being used in an aqueous liquid containing a blood component in a state where the slide surface of the fixed-side slide member and the slide surface of the rotary-side slide member face each other in an opposed manner, at least one of the fixed-side slide member and the rotary-side slide member is formed of a member which is made of a material which contains silicon and has hydrate of silicon oxide on the slide surface thereof.

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Номер записи: 33
23-05-2013 дата публикации

Expandable impeller pump

Номер: US20130129503A1
Автор: Boris Leschinsky, David A. Boger, Gregory P. Dillon, James P. Runt, Justin M. Walsh, Mark W. McBride, Robert F. Kunz, Robert L. Campbell, Stephen A. Hambric, Thomas M. Mallison
Принадлежит: PENN STATE RESEARCH FOUNDATION, Thoratec LLC

An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades.

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Номер записи: 34
23-05-2013 дата публикации

Automated delivery of medical device support software

Номер: US20130132465A1
Автор: Eric W. Brown
Принадлежит: Zoll Medical Corp

Embodiments of the present invention include a portable medical device with an integrated web server. The portable medical device is configured to establish a communication session with a user device. The integrated web server is configured to load software onto the user computing device for exchanging data with the portable medical device.

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Номер записи: 35
27-06-2013 дата публикации

System And Method For Treating Heart Tissue

Номер: US20130165736A1
Автор: Alem Jusic, Gregor Neumayr, Werner Mohl
Принадлежит: MIRACOR MEDICAL SYSTEMS GMBH

Some embodiments of a system or method for treating heart tissue can include a control system and catheter device operated in a manner to intermittently occlude a heart vessel for controlled periods of time that provide redistribution of blood flow. In particular embodiments, the system and methods may be configured to monitor at least one input signal detected at a coronary sinus and thereby execute a process for determining a satisfactory time period for the occlusion of the coronary sinus. In further embodiments, after the occlusion of the coronary sinus is released, the control system can be configured to select the duration of the release phase before the starting the next occlusion cycle.

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Номер записи: 36
15-08-2013 дата публикации

Axial flow blood pump with hollow rotor

Номер: US20130209292A1
Автор: Doan Baykut, Goekhan Baykut
Принадлежит: Doan Baykut, Goekhan Baykut

An axial flow blood pump includes a housing and a hollow rotor in the housing. The housing has an entrance end, an exit end, and a pump axis. The rotor has at least one spiral conveying rotor blade arranged on an inner surface of the rotor. The spiral conveying rotor blade extends toward a center of the rotor while leaving the center of the rotor open to define a central axial passage for a blood flow. The spiral conveying rotor blade has a pitch and a height that vary along the pump axis.

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Номер записи: 37
15-08-2013 дата публикации

Compact heat exchanger for veno-venous perfusion-induced systemic hyperthermia systems

Номер: US20130211483A1
Автор: Dongfang Wang, Joseph B. Zwischenberger
Принадлежит: University of Kentucky Research Foundation

A compact heat exchanger for veno-venous perfusion-induced hyperthermia includes an integral pneumatic pump and a hollow tubule heat exchange array. A veno-venous perfusion-induced hyperthermia system incorporating the compact heat exchanger is described. The heat exchanger provides a compact, efficient design allowing a lesser heat exchanging surface area and lesser required pumping power compared to conventional systems. In turn, the system provides a shorter blood circuit compared to conventional systems, allowing maintaining a lower blood temperature than such conventional systems while supplying sufficiently heated blood to patient visceral organs to provide a therapeutic effect, such as in supplementing chemotherapy drugs.

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Номер записи: 38
29-08-2013 дата публикации

Rotary Pump with Hydrodynamically Suspended Impeller

Номер: US20130225910A1
Автор: Geoffrey Douglas Tansley, John Campbell Woodard, Peter Andrew Watterson
Принадлежит: Thoratec LLC

A pump assembly 1, 33, 200 adapted for continuous flow pumping of blood. In a particular from the pump 1, 200 is a centrifugal pump wherein the impeller 100, 204 is entirely sealed within the pump housing 2, 201 and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid 105 urged by electromagnetic means external to the pump cavity 106, 203. Hydrodynamic suspension is assisted by the impeller 100, 204 having deformities therein such as blades 8 with surfaces tapered from the leading edges 102, 223 to the trailing edges 103, 224 of bottom and top edges 221, 222 thereof.

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Номер записи: 39
12-09-2013 дата публикации

Catheter device

Номер: US20130237744A1
Автор: Joachim Georg Pfeffer, Rolf W. Günther, Thomas Schmitz-Rode
Принадлежит: AIS GMBH AACHEN INNOVATIVE SOLUTIONS

The catheter device comprises a drive shaft connected to a motor, and a rotor mounted on the drive shaft at the distal end section. The rotor has a frame structure which is formed by a screw-like boundary frame and rotor struts extending radially inwards from the boundary frame. The rotor struts are fastened to the drive shaft by their ends opposite the boundary frame. Between the boundary frame and the drive shaft extends an elastic covering. The frame structure is made of an elastic material such that, after forced compression, the rotor unfolds automatically.

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Номер записи: 40
19-09-2013 дата публикации

Implantable Blood Conveying Device, Manipulating Device and Coupling Device

Номер: US20130245360A1
Автор: Joerg Schumacher
Принадлежит: ECP Entwicklungs GmbH

The invention provides an implantable component which is connectable to a manipulating device in a self-retaining manner by means of a coupling device, which provides a first coupling element and a second coupling element. The implantable component can thus be really positioned by the manipulating device which can, for example, already be connected to the implantable component before a therapeutic procedure and can be separated therefrom again after the surgical procedure. This is in particular advantageous with minimally invasive procedures.

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Номер записи: 41
10-10-2013 дата публикации

Method for operating a device for delivering a substance to be introduced, and method for delivering a substance to be introduced

Номер: US20130267929A1
Автор: Kazunori Shimizu, Mitsuru Hashida, Satoshi Konishi, Shigeru Kawakami
Принадлежит: KYOTO UNIVERSITY, Ritsumeikan Trust

Provided are a method for delivering a substance to be introduced and a method for operating a device for delivering a substance to be introduced, in which, in a subject, by supplying the substance to be introduced to a site different from a target site and thereafter applying pressure to the target site in the subject, the substance to be introduced is delivered into the target site.

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Номер записи: 42
14-11-2013 дата публикации

Distal bearing support

Номер: US20130303970A1
Автор: Keif M. FITZGERALD, Richard L. Keenan
Принадлежит: Thoratec LLC

In various embodiments, a catheter pump is disclosed herein. The catheter pump can include an elongated catheter body having a distal portion including an expandable cannula having an inlet and an outlet. The expandable cannula can have a delivery profile and an operational profile larger than the delivery profile. An impeller assembly can include an impeller shaft, and an impeller body can include one or more blades. The impeller blades can draw blood into the cannula when rotated. Further, an expandable support can have a mounting portion disposed on the impeller shaft distal of the impeller body and a cannula contact portion for reducing a change in tip gap due to bending of the cannula. The cannula contact portion can be disposed distal of the mounting portion.

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Номер записи: 43
21-11-2013 дата публикации

Methods, Systems, and Devices Relating to Wireless Power Transfer

Номер: US20130310629A1
Автор: Daniel M. Lafontaine
Принадлежит: Sunshine Heart Co Pty Ltd

The various embodiments disclosed herein relate to transcutaneous energy transfer systems comprising an internal coil positioned within a cavity of a patient and an external coil inductively coupled to the internal coil. The systems can be coupled to any implantable medical devices, such as, for example, a heart assist device.

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Номер записи: 44
26-12-2013 дата публикации

Compact integrated blood pump oxygenator or gas transfer device with hydrogel impeller packing material and rollover impeller outlet

Номер: US20130343954A1
Автор: Brian J. Fill, Linda Cahalan, Mark J. Gartner, Patrick Cahalan
Принадлежит: Ension Inc

An integrated blood pump oxygenator comprises an an impeller housing supporting an impeller; with an annular hydrogel impeller packing material adjacent the bearings and around the shaft of the impeller. The oxygenator including a rollover outlet in the form of an annular chamber extending around a center pump housing member; and further including an annular chamber within an annular array of hollow fiber membranes in fluid communication with the annular chamber extending from the impeller around the center pump housing; wherein the annular chamber provides substantially perpendicular radial outward cross flow across the membranes.

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Номер записи: 45
26-12-2013 дата публикации

Auxiliary artificial heart pump drive device and auxiliary artificial heart system

Номер: US20130345804A1
Автор: Hideki Kanebako
Принадлежит: Sun Medical Technology Research Corp

An auxiliary artificial heart pump drive device for driving an auxiliary artificial heart pump includes first and second pump control parts which are arranged in duplexed configuration. Each pump control part controls the auxiliary artificial heart pump by outputting a drive signal to the auxiliary artificial heart pump. Each pump control part has a means which, when a failure is detected in the pump control part, electrically cuts off a path through which the drive signal is outputted to the auxiliary artificial heart pump. According to the present invention, it is possible to provide an auxiliary artificial heart pump drive device and an auxiliary artificial heart system which exhibit high availability even when a serious failure occurs by any chance without duplexing a pump device.

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Номер записи: 46
02-01-2014 дата публикации

Intravascular blood pump and catheter

Номер: US20140005467A1
Автор: Oliver Marseille, Robert C. Farnan
Принадлежит: CircuLite Inc

An intravascular system for pumping blood from a chamber of a heart and through an associated blood vessel coupled in fluid communication therewith. The system includes a pump device configured to be inserted into a blood vessel. The system further includes a catheter having a proximal end coupled to the pump device and a distal end configured to collect blood within or exiting from the chamber. The catheter further includes a pre-formed shape corresponding to the vessel to at least assist with stabilization and positioning of the pump device in the vessel.

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Номер записи: 47
09-01-2014 дата публикации

Motor assembly for catheter pump

Номер: US20140010686A1
Автор: Adam R. Tanner, Doug M. Messner, Michael R. Butler, Richard L. Keenan
Принадлежит: Thoratec LLC

A catheter pump is disclosed herein. The catheter pump can include a catheter assembly that comprises a drive shaft and an impeller coupled to a distal end of the drive shaft. A driven assembly can be coupled to a proximal end of the drive shaft within a driven assembly housing. The catheter pump can also include a drive system that comprises a motor and a drive magnet coupled to an output shaft of the motor. The drive system can include a drive assembly housing having at least one magnet therein. Further, a securement device can be configured to prevent disengagement of the driven assembly housing from the drive assembly housing during operation of the pump.

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Номер записи: 48
09-01-2014 дата публикации

Catheter pump

Номер: US20140012065A1
Автор: Keif M. FITZGERALD, Richard L. Keenan, William J. Harrison
Принадлежит: Thoratec LLC

A catheter pump is provided that includes a rotatable impeller and an elongate cannula. The elongate cannula has a mesh that has a plurality of circumferential members disposed about the impeller. The elongate cannula has a plurality of axial connector extending between a proximal side of a distal circumferential member and a distal side of a proximal circumferential member. The circumferential members are radially self-expandable. The cannula is configured to minimize fracture within at least in the distal zone of the mesh as the elongated cannula moves into a sheathing device.

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Номер записи: 49
09-01-2014 дата публикации

Prevention of aortic valve fusion

Номер: US20140012067A1
Автор: Victor Poirier
Принадлежит: Thoratec LLC

Materials and methods related to blood pump systems are described. These can be used in patients to, for example, monitor arterial pressure, measure blood flow, maintain left ventricular pressure within a particular range, avoid left ventricular collapse, prevent fusion of the aortic valve in a subject having a blood pump, and provide a means to wean a patient from a blood pump.

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Номер записи: 50
09-01-2014 дата публикации

Prosthesis for connecting an anatomical duct

Номер: US20140012179A1
Автор: Pierre Da Cruz Louro
Принадлежит: Carmat SA

According to the invention, the tubular prosthesis for connecting an anatomical duct includes at least two individual tubular elements and a sealed mechanical element for connecting said separate elements to each other.

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Номер записи: 51
20-02-2014 дата публикации

Synchronization Control System

Номер: US20140051909A1
Автор: Rodney Gordon Parkin, William Suttle Peters
Принадлежит: Sunshine Heart Co Pty Ltd

The various embodiments herein relate to systems and methods for controlling the operation of a pulsatile heart assist device in a patient. The systems and methods include utilizing sounds and electrical signals produced by the heart to control the operation of the heart assist device.

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Номер записи: 52
27-02-2014 дата публикации

Devices, systems, and methods for cleaning, disinfecting, rinsing, and priming blood separation devices and associated fluid lines

Номер: US20140054220A1
Автор: Rodney S. Kenley
Принадлежит: Baxter Healthcare SA, Baxter Healthcare SA Singapore Branch, Baxter International Inc, HHD A DELAWARE C/O PEPE & HAZARD LLC LLC LLC

Systems and methods for providing for the automatic instrument-based rapid reprocessing of an intact extracorporeal circuit for use in hemodialysis. The system includes a manifold with connectors for engaging a dialyzer as well as venous and arterial blood lines. The manifold is adapted to be moved from a dialysis machine to a reuse instrument without removing the dialyzer and associated blood lines. The system allows for reprocessing of the extracorporeal circuit wherein prior to the next treatment, there is no residual chemical disinfectant requiring testing, the extracorporeal circuit is pre-primed, the levels in the bubble traps are set, and all of the required quality assurance tests are performed and recorded.

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Номер записи: 53
27-02-2014 дата публикации

System and method for controlling pump

Номер: US20140058190A1
Автор: Jeffrey R. Gohean, Raul G. Longoria, Richard Smalling, Thomas D. Pate
Принадлежит: University of Texas System

Systems and methods including a motor or electromagnets to control the movement of one or more pistons in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. Surfaces on a piston or pumping chamber may include hydrodynamic bearing surfaces.

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Номер записи: 54
27-02-2014 дата публикации

Endovascular ventricular assist device, using the mathematical objective & principle of superposition

Номер: US20140058191A1
Автор: Michael Zilbershlag
Принадлежит: Leviticus Cardio Ltd

This embodiment suggests new approach for Endovascular Ventricular Assist Device, using the mathematical objective & principle of superposition allow design and calculation of the body response to VAD pump located in the Aorta. This new approach allows minimal invasive Endovascular VAD that result in similar relief to the heart as partial VAD. Using special power transfer technique will allow wireless power transformation into the aorta. This methods and technique should dramatic reduce VAD barrier

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Номер записи: 55
06-03-2014 дата публикации

Ventricular cuff

Номер: US20140067057A1
Автор: Cori G. Pierce, Julien DUHAMEL, Justin Aron Callaway, Kevin Bourque
Принадлежит: Thoratec LLC

In one general aspect, a cuff for attachment to a heart includes an attachment component configured to engage a blood pump to attach the cuff to the blood pump and a sewing ring for attachment to the heart. The sewing ring is coupled to the attachment component, and the attachment component and the sewing ring each define a central opening configured to admit an inflow cannula of a blood pump. The sewing ring comprises a member that provides rigidity to flatten a portion of a myocardium of the heart when the cuff is attached to the heart.

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Номер записи: 56
04-01-2018 дата публикации

Method and system for creating a diagnostic vascular window

Номер: US20180000394A1
Автор: Louis L. Barrett, Michael Black, Peter Kotanko, Robert Kossmann
Принадлежит: Fresenius Medical Care Holdings Inc

Embodiments of the disclosure provide a method and system for providing a diagnostic vascular window that may be used in real time to monitor a patient's fluid conditions in a variety of settings. The diagnostic vascular window may, for example, be used pre-surgery, during surgery, and post-surgery to determine whether a correct type and dose of diuretic drugs are being used for the patient. The diagnostic vascular window utilizes low flow accesses to view blood/fluids leaving and entering the patient's body. In addition, the same amount of fluids leaving the body enters the body, so there are no fluid losses or gains within the diagnostic vascular window. The low flow accesses in conjunction with a monitoring system allows for real-time measurements of blood parameters without fluid loss.

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Номер записи: 57
06-01-2022 дата публикации

APPARATUS AND METHODS FOR OPTIMIZING INTRA CARDIAC FILLING PRESSURES, HEART RATE, AND CARDIAC OUTPUT

Номер: US20220001163A1
Автор: Kaiser Clayton Allen, Kaiser Daniel Walter
Принадлежит:

Apparatus, systems, and methods are provided for optimizing intracardiac filling pressures and cardiac output in patients with heart failure, conduction disease, and atrial fibrillation. The system is able to adjust and optimize intracardiac filling pressures and cardiac output by adjusting heart rate and the effective amount of total body blood volume. The device includes an adjustable member that may create a mean pressure differential in order to manifest an effective “mechanical diuresis” by sequestering extraneous blood volume to the high-capacitance of the venous vasculature. The system is therefore designed to reduce intracardiac filling pressures while maintaining or even increasing cardiac output. 1. A system to be implanted in the body of a patient with conduction disease and/or heart failure configured to monitor and/or treat the patient , the system comprising:at least one sensor configured to provide sensor data corresponding to pressure within or near the patient's heart;an elongate member comprising a proximal end and a distal end sized for introduction into a venous side of a patient's heart;at least one adjustable component carried on the distal end and configured to be positioned within an inferior vena cava adjacent the patient's heart, the at least one adjustable component being expandable to create a pressure gradient to blood flow within the inferior vena cava;at least one pacing component configured to at least one of sense and pace the patient's heart; anda controller coupled to the at least one pacing component and the at least one adjustable component and programmed to selectively expand the at least one adjustable component within the inferior vena cava based at least in part on sensor data from the at least one sensor to create the pressure gradient to optimize filling pressure of one or more chambers of the patient's heart.2. The system of claim 1 , further comprising at least one additional sensor configured to provide sensor data ...

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Номер записи: 58
07-01-2021 дата публикации

Pressure Sensing Ventricular Assist Devices and Methods of Use

Номер: US20210001025A1
Автор: Daniel I. Harjes, Eric Lee, Kathryn B. Frederick
Принадлежит: TC1 LLC

The invention generally relates to heart pump systems. In some embodiments, a pressure sensor is provided with a heart pump, either at the inflow or the outflow of the blood pump. The heart pump may further include a flow estimator based on a rotor drive current signal delivered to the rotor. Based on the rotor drive current signal, a differential pressure across the pump may be calculated. The differential pressure in combination with the pressure measurements from the pressure sensor may be used to calculate pressure on the opposite side of the pump from the pressure sensor. In some embodiments, the pressure sensor is located at the outflow of the pump and the pump is coupled with the left ventricle. The differential pressure and pressure measurement may be used to calculate a left ventricular pressure waveform of the patient. With such a measurement, other physiological parameters may be derived.

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Номер записи: 59
04-01-2018 дата публикации

Breast pump assembly

Номер: US20180001002A1
Автор: Brendan M. Donohoe, II Earl BRIGHT, John Y. Chang, Joshua Makower, Michele TOROSIS, Sharon Lam Wang
Принадлежит: Exploramed NC7 Inc

Systems and methods for pumping milk from a breast, wherein the milk is expressed from the breast under suction and milk is expulsed from the pumping mechanism to a collection container under positive pressure. In one approach, the breast pump assembly includes a breast adapter and a receptacle configured to cup the breast adapter, and the breast adapter is removable from the receptacle.

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Номер записи: 60
03-01-2019 дата публикации

Hard-wired implanted controller system

Номер: US20190001038A1
Автор: Barry M. Yomtov, Daniel Tamez, John Robert Batty, JR.
Принадлежит: Heartware Inc

A circulatory assist system is disclosed, the system including an implantable electrical device having an electric motor, an implantable controller connected to the implantable electrical device, and an implantable power source connected to the controller for supplying power to the controller. The controller is attachable to a first side of a percutaneous connector. A second side of the percutaneous connector, opposite to the first side, allows external connectivity to said controller.

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Номер записи: 61
03-01-2019 дата публикации

Guidewire access sleeve

Номер: US20190001103A1
Автор: Christopher Nason KORKUCH
Принадлежит: Abiomed Inc

An access sleeve can be attached to a medical device having first and second ends, the first end being positioned inside of a patient and the second end being positioned external to a patient. The access sleeve can include a tubular sleeve body having first and second open ends that define a first lumen extending along a longitudinal axis of the sleeve body. An opening in the sleeve body can connect the first lumen to an outer surface of the sleeve body. The access sleeve can be selectively attached to the medical device (e.g. catheter of a heart pump) and inserted into the access site when the medical device is positioned in the patient. The access sleeve can maintain vascular access to a patient's access site such as an arteriotomy and can be removed without disturbing the position of the medical device.

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Номер записи: 62
13-01-2022 дата публикации

BLOOD PUMP

Номер: US20220008713A1
Автор: Siess Thorsten, Spanier Gerd, Wang Jimpo
Принадлежит: ABIOMED EUROPE GMBH

An intravascular blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet, and an impeller arranged in said pump casing so as to be rotatable about an axis of rotation, wherein the impeller has blades sized and shaped for conveying blood from the blood flow inlet to the blood flow outlet. The blood pump further comprises a drive unit for rotating the impeller, the drive unit comprising a plurality of posts arranged about the axis of rotation, wherein each of the posts includes a shaft portion and a head portion. Coil windings around the posts are sequentially controllable so as to create a rotating magnetic field. The drive unit further comprises a back plate which engages ends of the shaft portions of the posts opposite the head portions. 1. An intravascular blood pump for percutaneous insertion into a patient's blood vessel , comprising:a pump casing having a blood flow inlet and a blood flow outlet,an impeller arranged in the pump casing, the impeller blade rotatable about an axis of rotation, and the impeller having blades sized and shaped for conveying blood from the blood flow inlet to the blood flow outlet, anda drive unit for rotating the impeller, the drive unit comprising a plurality of posts arranged about the axis of rotation, wherein each of the posts includes a shaft portion and a head portion, with each of the head portions pointing towards the impeller,wherein a coil winding is disposed about the shaft portion of each of the posts, each of the coil windings being sequentially controllable to create a rotating magnetic field,wherein the impeller comprises at least one magnet arranged to interact with the rotating magnetic field to cause rotation of the impeller,wherein the head portion of each post has a top surface inclined at an angle relative to a plane perpendicular to the axis of rotation, andwherein the at least one magnet of the impeller has a surface facing the head portions of the posts and being inclined at an ...

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Номер записи: 63
20-01-2022 дата публикации

APPARATUS AND METHODS FOR COUPLING A BLOOD PUMP TO THE HEART

Номер: US20220016412A1
Автор: BOURQUIN Amelie, Quelenn Pierre-Yves, RABARDEL Antoine, RUDELLE Antoine
Принадлежит: CorWave SA

An apparatus for coupling a blood pump to a patients heart is provided. The apparatus includes a sewing ring designed to be sutured to the patients heart, wherein the sewing ring has an opening sized and shaped to receive an inflow cannula of the blood pump. The apparatus further includes a locking element coupled to a housing of the blood pump and transitionable between a closed state and an open state. The locking element is structured to receive the sewing ring in the open state and engage the sewing ring in the closed state to prevent translational and rotational movement of the locking element relative to the sewing ring. In addition, the apparatus includes a biased structure designed to bias the locking element in the closed state. 1. An apparatus for coupling a blood pump to a patient's heart , the apparatus comprising:a sewing ring configured to be sutured to the patient's heart, the sewing ring comprising an opening sized and shaped to receive an inflow cannula of the blood pump;a locking element coupled to a housing of the blood pump and transitionable between a closed state and an open state, the locking element configured to receive the sewing ring in the open state and engage the sewing ring in the closed state to prevent translational and rotational movement of the locking element relative to the sewing ring; anda biased structure configured to bias the locking element in the closed state.2. The apparatus of claim 1 , wherein the locking element comprises a plurality of horizontal crenellations disposed along a circumferential opening of the locking element claim 1 , the plurality of horizontal crenellations of the locking device separated by a plurality of gaps sized and shaped to receive a plurality of horizontal crenellations disposed adjacent the opening of the sewing ring when the locking element is in the open state.3. The apparatus of claim 2 , wherein in the closed state claim 2 , the plurality of horizontal crenellations of the locking element ...

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Номер записи: 64
08-01-2015 дата публикации

Wireless Energy Transfer For Implantable Devices

Номер: US20150008761A1
Автор: Andre B. Kurs, Andrew J. Campanella, Aristeidis Karalis, David A. Schatz, Katherine L. Hall, Marin Soljacic, Morris P. Kesler
Принадлежит: WiTricity Corp

Wireless energy transfer methods and designs for implantable electronics and devices include, in at least one aspect, a device resonator configured to be included in an implantable medical device and supply power for a load of the implantable medical device by receiving wirelessly transferred power from a source resonator coupled with a power source; temperature sensors positioned to measure temperatures of the device resonator at different locations; a tunable component coupled to the device resonator; and control circuitry configured and arranged to adjust the tunable component to detune the device resonator in response to a measurement from at least one of the temperature sensors.

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Номер записи: 65
14-01-2016 дата публикации

Dual lumen cannula for artificial lung and right ventricular assist device

Номер: US20160008531A1
Автор: Dongfang Wang, Joseph B. Zwischenberger
Принадлежит: W-Z BIOTECH LLC

A dual lumen cannula includes a first lumen having at least one aperture for removing a fluid from the interior of the heart right atrium, and a second lumen for delivering a fluid into the interior of the pulmonary artery or the heart left atrium. The second lumen includes a distal selectively curvable portion having a length of from about 4 cm to about 22 cm to position an end thereof within the interior of the pulmonary artery lumen or the human heart left atrium interior when a distal end of the first lumen is positioned within a right atrium of the human heart. The second lumen may also include a distal anchoring structure for preventing inadvertent withdrawal from a surgical site.

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Номер записи: 66
27-01-2022 дата публикации

Combinatorial therapies including implantable damping devices and therapeutic agents for treating a condition and associated systems and methods of use

Номер: US20220022881A1
Автор: Anthony John Ujhazy, David Stephen Celermajer, Mark Carnegie, Zoran Milijasevic
Принадлежит: Brain Protection Co Pty Ltd

Devices, systems, and methods for combinatorial treatment of a condition with an implantable damping device and therapeutic agent (e.g., drug) are disclosed herein. Methods for treating one or more effects of the condition, such as a neurological condition, include providing the implantable damping device and at least neck one other therapy, such as a therapeutic agent, that treats the condition to the patient. The implantable damping device includes a flexible damping member and an abating substance and can be placed in apposition with a blood vessel. The flexible damping member forms a generally tubular structure having an inner and an outer surface, the inner surface formed of a sidewall having a partially deformable portion. The abating substance is disposed within the partially deformable portion and moves longitudinally and/or radially within the partially deformable portion in response to pulsatile blood flow.

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Номер записи: 67
11-01-2018 дата публикации

Batteries for use in implantable medical devices

Номер: US20180008760A1
Автор: Michael Zilbershlag, Neri Naveh, Roni Daffan
Принадлежит: Leviticus Cardio Ltd

Multi-cell battery packs can be made safer with certain features that mitigate the consequences of cell failure. Parameters of a cell are monitored to determine when the cell should be disconnected from the pack in case of a fault. The battery is reconfigured to continue operating in a safer mode. An over-charging prevention system reduces the maximum voltage that remaining battery pack can be charged to, so that the cells do not overcharge. Additional circuitry allows the disconnected cell to be periodically reconnected to the battery pack to determine if its conditions have sufficiently improved. The cells also include components for self-powering these cell functions while it is disconnected from the rest of the circuit.

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Номер записи: 68
14-01-2021 дата публикации

Circulatory support devic

Номер: US20210008264A1
Автор: Lloyd RADMAN
Принадлежит: Boston Scientific Scimed Inc

A circulatory support device includes a flexible cannula having a fluid outlet at a proximal end; and a pump assembly disposed at a distal end of the flexible cannula. The pump assembly includes a pump housing having a fluid inlet defined therein; a motor disposed within a distal end of the housing; and an impeller, driven to rotate by the motor, and configured to push blood toward the fluid outlet.

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Номер записи: 69
27-01-2022 дата публикации

MAGNETIC LEVITATION CENTRIFUGAL PUMP

Номер: US20220025897A1
Автор: COSTA MAIANTI Edgardo, FONTANILI Paolo, GHELLI Nicola
Принадлежит: EUROSETS S.R.L.

A magnetic levitation centrifugal pump, comprises: one hollow body provided with at least one inlet connector and with at least one outlet connector for blood; one rotor element, housed inside the hollow body and comprising at least one magnetic portion, where the rotor element can be commanded in rotation about an axis of rotation, without contact, by a stator element associable with the hollow body, the rotor element comprising at least one revolving body, which defines an upper surface supporting a plurality of blades which are adapted to convey blood towards the outlet connector; where the upper surface has a substantially concave shape and where the revolving body comprises at least one through hole which is positioned along the axis of rotation. 1. A magnetic levitation centrifugal pump comprising:at least one hollow body provided with at least one inlet connector and with at least one outlet connector for blood; andat least one rotor element, housed inside said at least one hollow body and comprising at least one magnetic portion, where said at least one rotor element can be commanded in rotation about an axis of rotation, without contact, by a stator element associable with said at least one hollow body, said at least one rotor element comprising at least one revolving body, which defines an upper surface supporting a plurality of blades which are adapted to convey blood towards said at least one outlet connector; whereinsaid upper surface has a substantially concave shape and said at least one revolving body comprises at least one through hole which is positioned along said axis of rotation.2. The magnetic levitation centrifugal pump according to claim 1 , whereinsaid upper surface has a curvilinear extension to define a saddle which is adapted to receive the blood entering said at least one inlet connector.3. The magnetic levitation centrifugal pump according to claim 2 , whereinsaid at least one hole has a first opening facing said upper surface.4. The ...

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Номер записи: 70
03-02-2022 дата публикации

IMPLANTABLE VASCULAR SUPPORT SYSTEM

Номер: US20220032032A1
Автор: CURCIC Michael, Schlebusch Thomas Alexander
Принадлежит:

The invention relates to an implantable, vascular support system () having a cannula () and an ultrasound measuring device (), wherein the cannula () and the ultrasound measuring device () are disposed in the region of mutually opposite ends of the support system (). 112.-. (canceled)13. An implantable cardiac support system , the system comprising:a cannula;an ultrasound measuring device; and receive signals received from the ultrasound measuring device; and', 'determine a total volume flow of blood in a region of the support system based on the signals received from the ultrasound measuring device., 'at least one processor configured to14. The support system of claim 13 , wherein the ultrasound measuring device is disposed on an opposite end from the cannula on the cardiac support system.15. The support system of claim 13 , wherein the ultrasound measuring device is disposed and oriented to perform an ultrasound measurement in a vicinity of the support system.16. The support system of claim 13 , wherein the ultrasound measuring device comprises at least two ultrasound transducers.17. The support system of claim 16 , wherein the ultrasound measuring device comprises at least three ultrasound transducers.18. The support system of claim 16 , wherein at least two of the at least two ultrasound transducers are oriented orthogonally to one another.19. The support system of claim 13 , wherein the ultrasound measuring device comprises a plurality of ultrasound transducers arranged to form an ultrasound array or an ultrasound matrix.20. The support system of claim 19 , wherein the at least one processor is configured to assess a direction of flow of the blood.21. The support system of claim 13 , further comprising a flow machine disposed between the cannula and the ultrasound measuring device.22. The support system of claim 13 , wherein the support system is configured to be implanted in an aortic valve.23. The support system of claim 13 , wherein the support system is ...

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Номер записи: 71
03-02-2022 дата публикации

IMPROVED INTRA-AORTIC BALLOON PUMP

Номер: US20220032033A1
Автор: BESSELINK PETRUS A., Erasmus Michiel Elardus, Mariani Massimo, Rakhorst Gerhard
Принадлежит: Memory Metal Holland BV

An intra-aortic balloon pumping device and a method of assembling an intra-aortic balloon pumping device. The device includes a catheter with a separated first and second lumen for driving a first balloon with a relatively large outer diameter and a second balloon with a smaller outer diameter than the aorta when inflated, as well as a single driver unit that is coupled to the first and second lumen for pumping a driving gas into and out from each individual lumen to inflate and deflate the first and second balloons in sequence. The ratio of cross-sectional area of each lumen and the balloon volumes are dimensioned in such way that the sequence is optimized. In one form, the second lumen is a short aperture, located only between adjacent chambers that are formed by the first and second balloons. 1. An intra-aortic balloon pumping device comprising:a catheter adapted to be inserted into an aorta and having a separated first and second lumen therein adapted for passage of a driving gas;a short small volume first occlusion balloon with a relatively large outer diameter, sufficient to occlude the aorta when inflated, positioned on a distal portion of the catheter and having at least one aperture formed in the catheter for communication of driving gas between the first lumen and a chamber defined by the first occlusion balloon;a long larger volume second balloon with a smaller outer diameter than the aorta when inflated, positioned on a more proximal portion on the catheter and having at least one aperture formed in the catheter for communication of driving gas between the second lumen and a chamber defined by the second balloon; anda driver unit that is coupled to the first and second lumen at a proximal portion of the catheter for pumping the driving gas into and out from the first and second lumen to inflate and deflate the first and second balloons such that the balloons inflate in sequence from distal to proximal and then deflate in sequence from distal to proximal, ...

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Номер записи: 72
03-02-2022 дата публикации

CATHETER DEVICE HAVING A COUPLING DEVICE FOR A DRIVE DEVICE

Номер: US20220032034A1
Автор: Baumgaertel Jens, Honselmann Julia, Liebing Reiner, Simon Cornelia
Принадлежит: ECP ENTWICKLUNGSGESELLSCHAFT MBH

Catheter device, having a hollow catheter in the catheter cavity of which a moveable shaft is guided, having a proximal coupling device, for detachable coupling of a drive device, the coupling device having a coupling cavity which is open towards the drive device and into which the shaft or an extension of the shaft protrudes with a connection element for mechanical coupling of a motor shaft, the coupling cavity having a germ barrier for reducing the pathogenicity of pathogenic substances or microorganisms. 1. A catheter device comprising:a catheter having a lumen, a proximal end, and a distal end; a catheter cavity in communication with the lumen of the catheter;', 'a coupling cavity; and', 'a germicidal gel within the coupling cavity; and', 'a first seal between the catheter cavity and the coupling cavity, the first seal being configured to prevent the germicidal gel migrating from the coupling cavity to the catheter cavity;, 'a first housing having a proximal end and a distal end, the distal end of the housing being coupled to the proximal end of the catheter, and the first housing comprisinga second housing configured to be releasably coupled to the first housing;a motor arranged within the second housing, the motor having a motor shaft extending through a wall of the second housing; anda drive shaft having a proximal end and a distal end, the proximal end of the drive shaft being configured to be releasably coupled to the motor shaft when the second housing is releasable coupled to the first housing, and the drive shaft extending at least from the coupling cavity, through the first seal, to the catheter cavity.2. The catheter device of claim 1 , wherein the drive shaft extends at least partially into the lumen of the catheter.3. The catheter device of claim 2 , wherein the drive shaft comprises a plurality of twisted strands.4. The catheter device of claim 1 , wherein the distal end of the drive shaft is coupled within the catheter cavity to a proximal end of a ...

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Номер записи: 73
03-02-2022 дата публикации

EARLY WARNING OF LVAD THROMBUS FORMATION

Номер: US20220032035A1
Автор: Brown Michael C., Kadrolkar Abhijit, Stadler Robert W.
Принадлежит:

A method of determining an adverse event within a patient having an implantable blood pump including calculating a plurality of power consumption trends of the blood pump during a plurality of time periods using a low-pass filter, determining a plurality of power trend differences between the plurality of power consumption trends, calculating a total amount of the plurality of power trend differences during a time interval, and generating an alarm when the total amount of the plurality of power trend differences exceeds a pre-determined threshold. 1determining power consumption of the blood pump over a period of time;filtering the power consumption of the blood pump by a pair of low pass filters having different cutoff frequencies to differentiate between short term power consumption changes and long term power consumption changes; anddetermining when a long term power consumption change exceeds a predetermined threshold.. A method of determining an adverse event within a patient having an implantable blood pump, the method comprising: This application is a continuation of U.S. application Ser. No. 16/248,888, filed Jan. 16, 2019, and claims the benefit of U.S. Application Ser. No. 62/622,488, filed Jan. 26, 2018, which is hereby incorporate herein in the entirety.The present technology is generally related to blood pumps and determining an adverse event associated therewith.Mechanical Circulatory Support Devices (“MCSDs”) are lifesaving mechanical devices configured to assist the heart in pumping blood throughout the body. A known type of MCSD is a ventricular assist device (“VAD”) which may include a centrifugal pump, axial pump, or another type of electromagnetic pump configured to pump blood from the heart to the rest of the body. One such centrifugal pump is the HVAD® Pump and one such axial pump is the MVAD® Pump, each manufactured by HeartWare, Inc. in Miami Lakes, Fla., USA.VADs are desirably provided with a rotor and contactless bearings so that, in ...

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Номер записи: 74
03-02-2022 дата публикации

DEVICE AND METHOD FOR MONITORING THE STATE OF HEALTH OF A PATIENT

Номер: US20220032036A1
Автор: Baumbach Hardy, Budde Martina, Kassel Julian, Pirk Tjalf, Schellenberg Inga, Schlebusch Thomas Alexander
Принадлежит:

The invention relates to a device () for monitoring the state of health of a patient (), wherein the device () comprises an input interface () for inputting a first pressure signal () and a second pressure signal () and a processing unit () for processing the first pressure signal () and the second pressure signal () in order to determine a processing value () in order to monitor the state of health of the patient () based the processing value (). 111.-. (canceled)12. A cardiac support system comprising:a blood guiding device;a first pressure sensor and a second pressure sensor, wherein the first pressure sensor and the second pressure sensor are disposed at a predetermined distance from one another in the blood guiding device; and an input interface for receiving the first pressure signal and the second pressure signal; and', 'a processing unit for processing the first pressure signal and the second pressure signal to determine a processing value indicative of the condition of the patient,, 'a device for monitoring a condition of a patient, the first pressure sensor configured to send a first pressure signal to the device, the second pressure sensor configured to send a second pressure signal to the device, the device comprisingwherein changes in differential pressure between a ventricle and an aorta of a heart of the patient is determined based at least in part on the first pressure signal and the second pressure signal, and wherein an elasticity of a blood vessel proximate to the cardiac support system is determined based at least in part on the changes in the differential pressure.13. The cardiac support system of claim 12 , wherein the processing unit is configured to process the first pressure signal as a blood pressure value in a ventricle of a heart of the patient and the second pressure signal as a blood pressure value in an aorta of the patient claim 12 , wherein the processing value is indicative of at least one of: a blood pressure difference claim 12 , ...

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Номер записи: 75
03-02-2022 дата публикации

SECUREMENT DEVICES FOR INTRACARDIAC BLOOD PUMP SYSTEMS

Номер: US20220032037A1
Автор: Rodrigues-Brimmers Cristine Gracinda, Schaefer Robert, Sheils Christopher W.
Принадлежит: ABIOMED, Inc.

Improved securement devices for use with intracardiac blood pump assemblies are provided. The present technology provides securement devices that may be used with a sheath assembly (e.g., an introducer sheath assembly, repositioning sheath assembly), and which are configured to restrict movement of an object (e.g., the catheter of the pump assembly) within the sheath assembly except when a mechanism (e.g., button) of the securement device is actively being actuated (e.g., pressed, held, etc.). 1. A device for securing an intravenous medical device , comprising:a flexible sleeve having a first lumen configured to receive at least a portion of the intravenous medical device;a button having a bore configured to receive at least a portion of the flexible sleeve;a spring element; and a second lumen configured to house the flexible sleeve; and', 'a cavity configured to house the button and the spring element,, 'a housing comprisingwherein the spring element is configured to exert a force on the button tending to cause the bore to compress the flexible sleeve unless the button is being held in a depressed state.2. The device of claim 1 , wherein the housing comprises at least one protrusion with at least one eyelet claim 1 , the at least one protrusion configured to enable the housing to be sutured to a patient's skin.3. The device of claim 1 , wherein the housing further comprises a hemostasis valve.4. The device of claim 1 , wherein the housing is configured to couple with a hemostasis valve.5. The device of claim 4 , wherein the housing comprises at least one slot configured to accept at least one peg of the hemostasis valve when the housing is coupled with the hemostasis valve.6. The device of claim 5 , wherein the at least one slot and the at least one peg comprise a bayonet connection.7. The device of claim 5 , wherein the at least one slot further comprises at least one eyelet configured to engage with the at least one peg.8. The device of claim 5 , wherein the at ...

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Номер записи: 76
03-02-2022 дата публикации

MANAGING PUMP SPEED WHEN POWER CONSTRAINED IN A FULLY IMPLANTED LVAD SYSTEM

Номер: US20220032038A1
Автор: Artmann Joel B., Lee Jason C., Schilling Eric A., Siegfried David I.
Принадлежит:

A method of managing a speed of implantable blood pump. The implantable blood pump is in communication with an internal battery and a transcutaneous energy transfer system (TETS). The method includes starting the pump at a programmed set speed. The speed of the pump is decreased from the programmed set speed to a minimum set speed if either a capacity of the internal battery is less than a predetermined reserve level and TETS power is unavailable, or there is insufficient TETS power to maintain the programmed set speed. The speed of the pump is progressively decreased from the programmed set speed if there is insufficient power to maintain the programmed set speed. 1. A method of managing a speed of implantable blood pump , the implantable blood pump being in communication with an internal battery and a transcutaneous energy transfer system (TETS) , the method comprising:starting the pump at a programmed set speed;decreasing the speed of the pump from the programmed set speed to a minimum set speed if either a capacity of the internal battery is less than a predetermined reserve level and TETS power is unavailable, or there is insufficient TETS power to maintain the programmed set speed; andprogressively decreasing the speed of the pump from the programmed set speed if there is insufficient power to maintain the programmed set speed.2. The method of claim 1 , wherein if the capacity of the internal battery is greater than the predetermined reserve level or TETS power is available claim 1 , and there is sufficient TETS power headroom claim 1 , the method further includes progressively increasing the speed of the pump from the minimum set speed to the programmed set speed.3. The method of claim 2 , wherein if the programmed set speed cannot be achieved with available power claim 2 , the method further includes decreasing the speed of the pump to the minimum set speed after progressively increasing the speed of the pump from the minimum set speed.4. The method of claim ...

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Номер записи: 77
19-01-2017 дата публикации

Transcatheter insertion device and method

Номер: US20170014561A1
Автор: Vegard Tuseth
Принадлежит: Nuheart AS

The present invention relates to a transcatheter method for providing fluid communication between two anatomical compartments. The present invention also relates to a transcatheter system comprising an intracorporeal connector for fluid communication between two anatomical compartments through at least one anatomical wall, wherein said connector is adapted to receive a flow regulating device, a connector, a flow regulating device and an insertion device.

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Номер записи: 78
18-01-2018 дата публикации

Methods and devices for identifying suction events

Номер: US20180015213A1
Автор: Michael C. Brown, Neil VOSKOBOYNIKOV
Принадлежит: Heartware Inc

The present disclosure provides for a method, control device, and implantable system, for acquiring a plurality of flow rate data points over time, each data point indicative of a flow rate of blood through the pump, calculating, based on the plurality of acquired flow rate data points, a value characterizing one or more features of a waveform formed from the plurality of flow rate data points; and determining, based on the value, the presence or absence of a suction condition in the pump.

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Номер записи: 79
18-01-2018 дата публикации

Malleable cannula

Номер: US20180015253A1
Автор: Arielle Drummond, Robert C. Farnan
Принадлежит: CircuLite Inc

A malleable cannula ( 50 ) for fluidically coupling with an anatomical structure includes a flexible cannula body wall ( 64 ) having a proximal end ( 68 ), a distal end ( 70 ), and a lumen ( 72 ) extending longitudinally between the proximal end ( 68 ) and the distal end ( 70 ). The proximal end ( 68 ) defines a first opening ( 80 ) to the lumen ( 72 ) and the distal end ( 70 ) defining a second opening ( 82 ) to the lumen ( 72 ). A channel is defined by a portion of the cannula body wall and extends longitudinally from the distal end ( 70 ) toward the proximal end ( 68 ). The channel has a first end oriented toward the proximal end of the cannula body wall. A malleable member ( 100 ) is provided within the channel and is fixedly connected to the cannula body wall ( 64 ) at the first end of the channel. The malleable member ( 100 ) is configured to assume and maintain a formed shape of the cannula body wall ( 64 ).

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Номер записи: 80
15-01-2015 дата публикации

Endovascular ventricular assist device, using the mathematical objective & principal of superposition

Номер: US20150018600A1
Автор: Michael Zilbershlag
Принадлежит: Leviticus Cardio Ltd

This embodiment suggests new approach for Endovascular Ventricular Assist Device, using the mathematical objective & principle of superposition allow design and calculation of the body response to VAD pump located in the Aorta. This new approach allows minimal invasive Endovascular VAD that result in similar relief to the heart as partial VAD. Using special power transfer technique will allow wireless power transformation into the aorta. This methods and technique should dramatic reduce VAD barrier

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Номер записи: 81
21-01-2021 дата публикации

Intravascular blood pump

Номер: US20210015981A1
Автор: Frank Kirchhoff, Thorsten Siess, Wolfgang Kerkhoffs
Принадлежит: ABIOMED EUROPE GMBH

An intravascular blood pump having a rotatable shaft carrying an impeller and a housing with an opening through which the shaft extends with the impeller positioned outside the housing. The shaft and the housing have surfaces forming a circumferential gap which converges towards the impeller-side end of the gap and which has a minimum gap width of preferably no more than 5 μm, more preferably no more than 2 μm.

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Номер записи: 82
16-01-2020 дата публикации

Compact centrifugal pump with magnetically suspended impeller

Номер: US20200018318A1
Автор: CHEN CHEN
Принадлежит: Ch Biomedical (usa) Inc

A centrifugal fluid pump with a fully magnetically suspended rotor to improve blood compatibility when pumping blood is disclosed. The pump stabilizes radial displacements of a disc-like rotor with active control through separate electric motor and magnetic bearings to improve the pump's critical performances including device packaging size, system simplicity and reliability, stiffness and other dynamic performances of suspension, power efficiency, and others.

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Номер записи: 83
17-04-2014 дата публикации

Portable controller with integral power source for mechanical circulation support systems

Номер: US20140103842A1
Автор: Don W. E. Evans, Nathan J. Bolyard, Thomas P. Sutera
Принадлежит: Minnetronix Inc

A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.

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Номер записи: 84
28-01-2016 дата публикации

Total artificial heart

Номер: US20160022887A1
Автор: Richard Wampler
Принадлежит: OREGONHEART Inc

A total artificial heart having a rotor with an impeller, wherein the rotor is mounted within a pump housing on a hollow shaft. The rotor is magnetically driven to produce rotary motion of the impeller for pumping blood. The motor is disposed within the pump housing such that axial translation within the housing acts as a shuttle valve to alternate flow between pulmonary and systemic circulation.

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Номер записи: 85
28-01-2016 дата публикации

Power scaling

Номер: US20160022891A1
Автор: Lori LUCKE, Vlad BLUVSHTEIN, William Weiss
Принадлежит: Minnetronix Inc

Disclosed are systems and methods for measuring and calculating parameters to control and monitor a power transfer in an implanted medical device, including operating the device in a plurality of scalable power modes and/or coupling modes. The system may shift between or among power and/or coupling modes based on input such as data received over system communication lines, programmable timers, or electrical loading information. The system may also shift between or among power and/or coupling modes based on calculated amounts of coupling, levels of detected heat flux, and/or amounts of estimated temperature changes.

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Номер записи: 86
26-01-2017 дата публикации

Heart help device, system, and method

Номер: US20170021073A1
Автор: Peter Forsell
Принадлежит: Individual

An implantable device for improving the pump function of the heart of a human patient by applying an external force on the heart muscle is provided. The device comprises at least one pump device having a pump. The pump comprising: a piston adapted for reciprocating movement, an operating device for operating the piston, a heart contacting organ. The movement of the piston assists the pump function of the heart through said heart contacting organ.

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Номер записи: 87
10-02-2022 дата публикации

SYSTEMS AND METHODS FOR REDUCING PRESSURE AT AN OUTFLOW OF A DUCT

Номер: US20220039803A1
Автор: Feld Tanhum, Nitzan Yaacov, Yacoby Menashe
Принадлежит:

Various systems and methods are provided for reducing pressure at an outflow of a duct such as the thoracic duct or the lymphatic duct. In one embodiment, an indwelling catheter can be configured to be at least partially implanted within a vein of a patient in the vicinity of an outflow port of a duct of the lymphatic system. The catheter can include first and second restrictors each configured to at least partially occlude the vein within which the catheter is implanted and thus to restrict fluid flow within the vein when the restrictors are activated. The restrictors can each be configured to move between an activated configuration, in which the restrictor occludes the vein, and a relaxed configuration, in which the restrictor does not occlude the vein. The catheter can include a pump, such as an axial motor pump, configured to pump fluid through the catheter. 186-. (canceled)87. A medical system , comprising:a catheter shaft configured to be positioned within a vein of a patient;at least one restrictor coupled to the catheter shaft and configured to be positioned within the vein, the at least one restrictor being movable between an activated configuration in which the at least one restrictor has a first diameter and a relaxed configuration in which the at least one restrictor has a second diameter that is less than the first diameter, the at least one restrictor being configured to occlude fluid flow through the vein when the at least one restrictor is in the activated configuration within the vein; anda pump configured to pump fluid through the catheter shaft.88. The system of claim 87 , wherein the catheter shaft includes a single restrictor.89. The system of claim 87 , wherein the at least one restrictor comprises a balloon.90. The system of claim 89 , further comprising at least one inflation lumen extending along the catheter shaft claim 89 , the at least one inflation lumen being in fluid communication with the at least one restrictor.91. The system of ...

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Номер записи: 88
10-02-2022 дата публикации

FLOW MODIFICATION DEVICES IN BODY LUMENS

Номер: US20220039938A1
Автор: Feld Tanhum, Karavany Sagy, NISHRI Boaz, ROTMAN Oren Oren Moshe, Teichman Eyal, Yacoby Menashe
Принадлежит: Nephronyx Ltd.

The devices and methods described herein include a body lumen fluid flow modulator including an upstream flow accelerator and a downstream flow decelerator. The fluid flow modulator preferably includes one or more openings that define a gap/entrainment region that provides a pathway through which additional fluid from a branch lumen(s) is entrained into the fluid stream flowing from the upstream flow accelerator to the downstream flow decelerator. 1. A device for altering fluid flow through a body lumen , the body lumen coupled to a branch lumen , the device comprising:a flow modulator configured to be positioned within the body lumen, the flow modulator comprising an upstream component, a downstream component, and an entrainment region, the upstream component having an inlet, an outlet, and a cross-sectional flow area that converges from the inlet towards the outlet, the downstream component having an entry, an exit, and a cross-sectional flow area that diverges from the entry towards the exit, and the entrainment region comprising a plurality of longitudinally extending openings radially spaced around the entrainment region, the entrainment region between the inlet of the upstream component and the exit of the downstream component,wherein the flow modulator is configured to accelerate a fluid stream passing through the upstream component towards the downstream component to generate a low pressure region in the vicinity of the entrainment region that entrains additional fluid into the fluid stream via the plurality of longitudinally extending openings as the fluid stream passes into the entry of the downstream component.2. The device of claim 1 , wherein the entrainment region diverges at a same angle as at least a portion of the downstream component's divergence angle.3. The device of claim 1 , wherein the entrainment region is integrally formed with the downstream component.4. The device of claim 1 , wherein the entry of the downstream component has a diameter ...

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Номер записи: 89
24-01-2019 дата публикации

Physiological monitoring system

Номер: US20190021597A1
Автор: Ariel Johnson, Brett Quas, Harry Rowland, Michael Nagy
Принадлежит: Endotronix Inc

Disclosed is a physiologic monitoring system comprising a central hub in communication with a management portal for communicating physiologic measurements taken from a plurality of peripheral devices on a patient. At least one non-invasive peripheral device may measure physiologic data from a patient and be in communication with said central hub. A system including an invasive peripheral device may be associated with said patient and be in communication with said central hub. The central hub may be scalable to collect and communicate measurements from the non-invasive peripheral device and the invasive peripheral device. The at least one non-invasive peripheral device may include a blood pressure cuff, an oxygen sensor, a weight scale, and an ECG monitor. The invasive peripheral device may include a wireless sensor reader that may be adapted to measure physiologic data from a sensor implant placed within the cardiovascular system of said patient.

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Номер записи: 90
10-02-2022 дата публикации

Removable mechanical circulatory support for short term use

Номер: US20220040470A1
Автор: Martin T. ROTHMAN, Theodosios Alexander
Принадлежит: Individual

Mechanical circulatory supports configured to operate in series with the native heart are disclosed. In an embodiment, an intravascular propeller is installed into the descending aorta and anchored within via an expandable anchoring mechanism. The propeller and anchoring mechanism may be foldable so as to be percutaneously deliverable to the aorta. The propeller may have foldable blades. The blades may be magnetic and may be driven by a concentric electromagnetic stator circumferentially outside the magnetic blades. The stator may be intravascular or may be configured to be installed around the outer circumference of the blood vessel. The support may create a pressure rise between about 20-50 mmHg, and maintain a flow rate of about 5 L/min. The support may have one or more pairs of contra-rotating propellers to modulate the tangential velocity of the blood flow. The support may have static pre-swirlers and or de-swirlers. The support may be optimized to replicate naturally occurring vortex formation within the descending aorta.

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Номер записи: 91
10-02-2022 дата публикации

SYSTEMS AND METHODS FOR TRANSSEPTAL DELIVERY OF THERAPEUTIC DEVICES

Номер: US20220040471A1
Автор: Athas William L., Johnson Kevin, Stack Richard S.
Принадлежит: Synecor LLC

A system and method used to deliver a percutaneous ventricular assist device (pVAD) or other cardiac therapeutic device to a site within the heart, such as a site at the aortic valve. A flexible device is percutaneously introduced into a vasculature of a patient and positioned to run from a femoral vein, through the heart via a transseptal puncture, and to a femoral artery. The venous-side end of the flexible device is withdrawn out the venous vasculature superior to the heart, and a pVAD is secured to the flexible device. The pVAD is pushed in a distal direction while the arterial-side end of the flexible device is pulled in the proximal direction to advance the pVAD to the target site. A left ventricle redirector aids in orienting the pVAD and preventing migration of the flexible member towards delicate structures of the heart during advancement of the pVAD. 1. A system for delivering a percutaneous ventricular assist device (pVAD) to a target site in the heart , comprising:a pVAD having an elongate flexible advancer on its distal end;a flexible member proportioned for introduction into a vasculature and having a length to extend from the right subclavian vein, through the heart via a transseptal puncture, and to a femoral artery such that a first end of the cable is external to the patient at the right subclavian vein and a second end of the cable is external to the patient at the femoral artery, the flexible member having a first end releasably engageable with the pVAD.21. The system of claim 21 , wherein the advancer comprises a flexible member having a first claim 21 , curved claim 21 , position and a second generally straight position claim 21 , the advancer resiliently biased in the first position.22. The system of claim 22 , wherein the advancer comprises a flexible tubular element having a lumen claim 22 , and a shape memory core member in the lumen.23. The system of claim 22 , wherein the core member has a diameter that tapers downwardly from its proximal ...

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Номер записи: 92
10-02-2022 дата публикации

ANTI-SUCTION BLOOD PUMP INLET

Номер: US20220040472A1
Автор: Corbett Scott C., DeLorenzo Charles, El Katerji Ahmad
Принадлежит: ABIOMED, Inc.

A heart pump assembly includes an impeller blade coupled to a rotor or a drive shaft, a cannula, a distal projection coupled to a distal end of the cannula and a blood inlet having a plurality of apertures. The plurality of apertures is radially oriented and disposed about a circumference of the cannula. The plurality of apertures includes at least a first ring of apertures which are proximal to the distal projection and a second ring of apertures which are proximal of the first ring of apertures. The plurality of apertures can allow the heart pump assembly to continue to function if anatomical structures or tissue become suctioned to a portion of the heart pump. 117-. (canceled)18. A heart pump assembly comprising:a rotor;a motor coupled to the rotor;an impeller blade coupled to the rotor such that rotation of the rotor causes the impeller blade to rotate and pump blood;a cannula; anda blood inlet including a plurality of apertures radially oriented and disposed about a constant circumference of the blood inlet, the plurality of apertures including at least a first row of apertures spaced apart linearly about the constant circumference of the blood inlet and a second row of apertures spaced laterally from the first row of apertures on the constant circumference of the blood inlet, the second row of apertures being proximal of the first row of apertures,wherein the first row of apertures includes a plurality of first apertures and the second row of apertures includes a plurality of second apertures, each of the plurality of first apertures having an area greater than an area of each of the plurality of second apertures.19. The heart pump assembly of claim 18 , wherein the area of each of the plurality of first apertures is at least two times greater than the area of each of the plurality of second apertures.20. The heart pump assembly of claim 19 , wherein each of the plurality of first apertures has a height measured parallel to a longitudinal axis of the cannula ...

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Номер записи: 93
10-02-2022 дата публикации

Centrifugal blood pump with hydrodynamic bearing

Номер: US20220042511A1
Автор: Gerd Spanier, Thorsten Siess
Принадлежит: ABIOMED EUROPE GMBH

A centrifugal blood pump without a mechanical bearing comprises a pump casing ( 1 ), an impeller ( 9 ) arranged in the pump casing rotatably about the central axis and freely movable axially and radially within a limited clearance. The impeller has per-manent magnets or permanently magnetized magnetic regions (N/S) which cooperate with an electromagnetic drive to set the impeller rotating. A circular wall ( 12 ) or circularly arranged wall sections are provided within the pump casing, their inner surfaces defining a radial clearance together with the outer circumference of the impeller to form a hydrodynamic radial bearing for the impeller.

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Номер записи: 94
28-01-2021 дата публикации

Tube for ventricular assist device

Номер: US20210023288A1
Автор: Ehud Schwammenthal, Gad LUBINSKY, Yosi Tuval, Zev Sohn
Принадлежит: MAGENTA MEDICAL LTD

Apparatus and methods are described including a ventricular assist device that includes a tube configured to traverse a subject's aortic valve. The tube defines a generally-cylindrical central portion, and a proximal conical portion that narrows from a proximal end of the central portion to a proximal end of the tube. The tube defines one or more blood inlet openings in a vicinity of a distal end of the tube, and one or more blood outlet openings that extend axially from the central portion of the tube at least partially into the proximal conical portion of the tube. A blood pump pumps blood into the tube from the subject's left ventricle through the one or more blood inlet openings, and from the tube into the aorta through the one or more blood outlet openings. Other applications are also described.

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Номер записи: 95
10-02-2022 дата публикации

MODELING OF FLOW THROUGH A LEFT VENTRICULAR ASSIST DEVICE (LVAD)

Номер: US20220044825A1
Автор: Bourantas Christos, Garcia Garcia Hector Manuel, Grinstein Jonathan, Torii Ryo
Принадлежит:

A model of flow through a left ventricular assist device (LVAD) can be used for preoperative planning of implantation of the LVAD into a patient and/or optimization of the LVAD after implantation into the patient are described. At least one imaging data set related to a patient and at least one physiological data set related to the patient can be received. An ideal parameter related to the LVAD can be determined based on the at least one imaging data set related to the patient, the at least one physiological data set related to the patient using a model of circulation in a large spatial region of the patient's body and a three-dimensional anatomical model of at least one component of the region of the patient's body and at least one component of the LVAD. Flow patterns within the three-dimensional anatomical model are calculated using computational fluid dynamics. 1. A method comprising:receiving, by a system comprising a processor, at least one imaging data set related to a patient and at least one physiological data set related to the patient; anddetermining, by the system, an ideal parameter related to a left ventricular assist device (LVAD) based on the at least one imaging data set related to the patient, the at least one physiological data set related to the patient using (1) a model of circulation in a large spatial region of the patient's body and (2) a three-dimensional anatomical model of at least one component of the region of the patient's body and at least one component of the LVAD, wherein flow patterns within the three-dimensional anatomical model are calculated using computational fluid dynamics (CFD).2. The method of claim 1 , wherein the large spatial region of the patient's body comprises the patient's circulatory system.3. The method of claim 1 , wherein the at least one component of the region comprises an atrium claim 1 , a ventricle claim 1 , an aorta claim 1 , and/or at least one branch of the aorta claim 1 , andwherein the at least one ...

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Номер записи: 96
02-02-2017 дата публикации

Dialysis system including automatic priming

Номер: US20170028120A1
Автор: Don Busby, Robert W. Childers, Rodolfo Roger, Shahid Din, Thomas Kelly, Waleed Mutasem El Sayyid
Принадлежит: Baxter Healthcare SA, Baxter International Inc

A hemodialysis system comprising: a source of priming fluid; an extracorporeal circuit including an arterial line, a venous line, and a drip chamber; a level sensor operable with the drip chamber; a reversible blood pump operable with the extracorporeal circuit; a connection between the arterial and the venous line; and a priming sequence in which priming fluid from the source is pumped in a reverse pump direction through the extracorporeal circuit and reversibly in a normal pump direction through the extracorporeal circuit, wherein an output from the level sensor is used to determine when to stop pumping in at least one of the directions.

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Номер записи: 97
01-02-2018 дата публикации

Fluid resistant locking electrical connector for ventricular assist devices

Номер: US20180028736A1
Автор: George Chao-chih Hsu, Kenneth Wong, Shahn S. Sage, Thomas Orduna
Принадлежит: TC1 LLC

A fluid resistant electrical connector for an implantable medical device includes a first connector assembly and a second connector assembly. The first connector assembly includes a first housing, an elongated coupling member, and first electrical contacts distributed around the coupling member. The second connector assembly includes a second housing, second electrical contacts, and a retention member. The second housing has a coupling member receptacle and a retention member receptacle. The coupling member receptacle is shaped to accommodate a distal portion of the coupling member. The retention member is partially accommodated by the retention member receptacle and movable between an insertion configuration accommodating coupling of the first and second connector assemblies and a retention configuration retaining the coupling member to prevent inadvertent uncoupling of the electrical connector.

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Номер записи: 98
17-02-2022 дата публикации

DETERMINATION APPLIANCE AND METHOD FOR DETERMINING A VISCOSITY OF A FLUID

Номер: US20220047173A1
Автор: Schlebusch Thomas Alexander, Stotz Ingo
Принадлежит:

The approach presented here relates to a determination appliance () for determining a viscosity of a fluid. The determination appliance () has at least one determination device () and a provisioning device (). The determination device () is designed to determine the viscosity of the fluid and/or a rotational speed (ω) of a blade wheel () for conveying the fluid by using at least one detected volume flow of the fluid and a detected pressure difference of the fluid. The provisioning device () is designed to provide or send a viscosity signal () representing the viscosity determined by the determination device (). 111.-. (canceled)12. A ventricular assist system comprising:an impeller;a drive device coupled to the impeller, the drive device configured to drive the impeller at a rotational speed (ω);a pressure sensor device; and{'claim-text': [{'claim-text': ['a lateral receiving interface configured to receive blood of the patient into an interior of the cannula; and', 'an outlet interface, wherein the impeller is configured to convey the blood from the lateral receiving interface to the outlet interface; and'], '#text': 'a cannula configured to be implanted in a body of a patient, wherein the cannula comprises:'}, 'a volumetric flow sensor positioned at a tip of the cannula and configured to sense a volumetric flow (Q) of the blood of the patient through the cannula, the volumetric flow sensor comprising a Doppler ultrasonic sensor;'], '#text': 'a determination device comprising:'}wherein the pressure sensor device is configured to sense a pressure difference (Δp) of the blood in the region of the receiving interface and the region of the outlet interface, and{'sub': 'el', '#text': 'wherein the determination device is configured to determine the viscosity (η) of blood in the body of the patient based on at least the sensed volumetric flow (Q) of the blood, the sensed pressure difference (Δp) of the blood, and either the rotational speed (ω) of the impeller or an ...

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Номер записи: 99
29-01-2015 дата публикации

System and method for monitoring arterial and venous blood oxygen, blood glucose, and blood constituent concentration

Номер: US20150031969A1
Автор: Mohammad Khair
Принадлежит: Individual

A system for measuring of arterial and venous blood constituent concentration based first on measuring cardiac blood flow balance parameter between the right chamber of the heart and the left chamber of the heart, which includes a sensor device for measuring one of blood pressure and blood flow rate and blood constituent concentration of a patient so as to generate an arterial pulse signal. A processing unit is responsive to the arterial pulse signal for generating full arterial pulse plethysmography waveforms, arterio-venous pulse plethysmography waveforms, and balance parameters. A computational device that is responsive to plethysmography waveforms generating a plurality of state space linear transfer functions by applying system identification between plethysmography waveforms at various wavelengths representing a plurality of models of the blood constituent concentration, including oxygen, carbon dioxide, hemoglobin, and glucose, and displaying related useful information.

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Номер записи: 100