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8157721 |
Artificial heart pump system and its control apparatus
An artificial heart pump system is provided independently with a controlling processor for controlling an operation status of a blood pump so as to perform in a preset condition and with an...
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8152845 |
Blood pump system with mounting cuff
An implantable blood pump system includes a blood pump housing and a mounting cuff. The blood pump housing at least partially contains a pump drive system adapted to transfer blood from an interior...
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8152786 |
Collection catheter and kit
A catheter for collecting fluid such as blood from a vessel such as a coronary sinus of a patient has an elongated, flexible tubular portion and an annular sealing member spaced from a distal end...
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8133277 |
Medical device for fluid flow and method of forming such device
A medical device which defines a lumen for flowing a bodily fluid from an upstream end of the device to a downstream end thereof is disclosed. The device has a luminal wall (14) that extends...
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8092365 |
Resonant multilayered impedance pump
A multilayered impedance pump is formed by an inner tube and an outer tube which have different mechanical characteristics. The outer tube is relatively stiff, and can be used for a structural...
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8075617 |
Device for connection between a heart prosthesis and the natural auricles
A device for connection between a heart prosthesis and a person's natural auricles includes a structure for joining to the natural auricles with individual suture attachments mounted so as to be...
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8070455 |
Scotch-yoke mechanism for redundant actuation applications
A primary scotch yoke and a secondary scotch yoke are coupled in opposing arrangement and rigidly attached to a linearly reciprocating element. Each scotch yoke includes a rotary actuator with a...
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8070668 |
Controlled inflation of a pneumatic L-VAD
A drive unit to control the peak pressure of air for the inflation of a left ventricular assist system is disclosed. The control of the peak pressure can address the problem of the “kick” exp...
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8021422 |
Actuating mechanism for pneumatically-driven artificial heart
A pneumatic pump comprises two coaxial cylindrical pumping chambers, each enclosing a piston connected to the other through a partition by a tube, thereby forming a monolithic piston assembly that...
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8002691 |
Fluid pressure generating means
A fluid pressure generating means (10) for a heart assist device having blood pumping means. The pressure generating means (10) includes a housing (11), defining an interior volume (18), and having...
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7993259 |
Percutaneous intra-aortic ventricular assist device
A percutaneous intra-aortic ventricular assist device is adapted for implantation in an aorta that has a luminal wall, and includes a tubular stent body, an inner tubular body, a vane member, a...
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7988728 |
Physiological demand responsive control system
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...
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7967858 |
Device for rapid connection between a totally implantable heart prosthesis and natural auricles
Device for rapid connection between a totally implantable heart prosthesis and natural articles. According to the invention, said prosthesis comprises: fastening means (16, 25) for fastening an end...
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7963905 |
Control system for a blood pump
A method of controlling the speed of a blood pump, wherein the method includes the steps of deriving an estimated pulsatility index from speed, then deriving an estimated blood pressure from...
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7955247 |
Systems for and methods of repair of atrioventricular valve regurgitation and reversing ventricular remodeling
Methods of and devices for restoring the normal geometry of a heart, including but not limited to the structures supporting the atrioventricular valves. The techniques and devices described herein...
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7951062 |
Blood pump system and method of operation
A blood pump system includes a blood pump having a motor with a rotor and a stator. The stator has a plurality of stator windings situated therein. A motor controller is coupled to the motor, and a...
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7887479 |
Sensorless flow estimation for implanted ventricle assist device
A method of estimating the blood flow rate of a heart ventricle assist device which is positioned externally of, or implanted in, a patient. The assist device comprises a blood pump having a...
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7883539 |
Heart wall tension reduction apparatus and method
Devices and methods for treatment of a failing heart by reducing the heart wall stress. The device can be one which reduces wall stress throughout the cardiac cycle or only a portion of the cardiac...
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7850593 |
Fluid pump
A pumping system 10, FIG. 1, provides a physiological pulsatile flow and includes controller 121, a pump drive head 50 coupled to a motor 12 and a fluid housing 52 having at least one port 60. The...
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7811318 |
Apparatus and method for pneumatically driving an implantable medical device
A driver is disclosed for powering a pneumatically operated implantable device, such as an artificial heart with a left and a right ventricle. The driver includes a pair of compressors that each...
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7799074 |
Rotary displacement pump with smaller radial dimensions
According to the invention the rotary pump consists of an external gear (13) with internal teeth (16) in the form of a squirrel cage, and an internal gear (9), housed in an off-centre manner in the...
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7794384 |
Dual communication interface for artificial heart system
An artificial heart pump system has a heart pump implanted in a patient. A pump control unit worn by a patient includes a programmable device for adapting a secure aspect of heart pump operation in...
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7785246 |
Left and right side heart support
A cannulation system for cardiac support uses an inner cannula disposed within an outer cannula. The outer cannula includes a fluid inlet for placement within the right atrium of a heart. The inner...
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7758491 |
Method and apparatus for the surgical treatment of congestive heart failure
An apparatus implantable in a heart ventricle includes a frame configured to engage an inner circumferential periphery of the ventricle and to expand and contract between an expanded state...
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RE41394 |
Implantable device for utilization of the hydraulic energy of the heart
A device, potentially implantable in a living organism, intended to utilize at least a part of the hydraulic energy generated by the heart (10)—the primary unit—at the natural phases of work whe...
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7740575 |
Fluid pressure generating means
A fluid pressure generating means (10) for a heart assist device having blood pumping means. The pressure generating means (10) includes a housing (11), defining an interior volume (18), and having...
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7736296 |
Intracardiac blood pump
Disclosed is an intracardiac blood pump with a flexible screen between which discharge ports are located. The pump parts are connected to the flexible screen which catches the axially discharged...
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7731675 |
Guidable intravascular blood pump and related methods
An improved intravascular blood pump and related methods involving the broad inventive concept of equipping the intravascular blood pump with guiding features such that the intravascular blood pump...
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7691047 |
Device for the epicardial support and/or resumption of cardiac activity
A device for epicardial support and/or the assuming of cardiac activity having a double membrane (1) consisting of an elastic inner membrane (2) and a non-expandable outer membrane (3) as well as a...
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7645225 |
Chronic performance control system for rotodynamic blood pumps
In a left ventricular assist device (LVAD) a rotodynamic blood pump (10) is powered by a brushless DC motor (12). A power supply (14) supplies power to the motor (12). Three feedback channels, one...
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7591777 |
Sensorless flow estimation for implanted ventricle assist device
A method of estimating the blood flow rate of a heart ventricle assist device which is positioned externally of, or implanted in, a patient. The assist device comprises a blood pump having a...
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7588530 |
Devices, systems and methods for assisting blood flow
A pump includes a flexible conduit, at least one valve attached to the flexible conduit about the perimeter of the valve; and a drive mechanism to move the valve to pump blood within the conduit....
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7578782 |
Methods and systems for determining a viscosity of a fluid
Methods for determining a viscosity of a fluid passing through a fluid pump are disclosed. An amount of energy associated with axially moving a rotor may be determined and correlated to a viscosity...
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7530998 |
Device and method to control volume of a ventricle
A device used to treat heart disease by decreasing the size of a diseased heart, or to prevent further enlargement of a diseased heart. The device works by limiting the volume of blood entering the...
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RE40669 |
Blood pump
A pump especially designed for pumping blood comprises a bladder, the interior surface area and volume of which is changeable, i.e., it stretches and expands during the filling phase, and...
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7485088 |
Method and device for percutaneous surgical ventricular repair
In one embodiment, there is disclosed a method for repairing a heart of a human, comprising introducing a collapsed shaping device through the skin into the vascular system of the human, delivering...
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7481760 |
Implantable counterpulsation cardiac assist device
A hollow tubular element is inserted in the descending aorta. The caudad end contains a pressure sensitive passive or preferably, hydraulically or electrically activated, unidirectional valve. A...
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7396327 |
Blood pump system and method of operation
A blood pump system includes a blood pump having a motor with a rotor and a stator. The stator has a plurality of stator windings situated therein. A motor controller is coupled to the motor, and a...
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7381179 |
Pulmonary and circulatory blood flow support devices and methods for heart surgery procedures
Pump and cannula systems inserted through the right side and/or left side of the heart provide protection against collapse of the heart chambers and veins and arteries and provide supplemental...
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7374574 |
Device for axially conveying body fluids
The invention relates to a device for axially conveying body fluids. The aim of the invention is to embody the inflow and outflow area of an axial pump in such a way that the flow is not separated...
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7341584 |
Device and method to limit filling of the heart
A device used to treat heart disease by decreasing the size of a diseased heart, or to prevent further enlargement of a diseased heart. The device works by limiting the volume of blood entering the...
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7311731 |
Prevention of myocardial infarction induced ventricular expansion and remodeling
A method for direct therapeutic treatment of myocardial tissue in a localized region of a heart having a pathological condition. The method includes identifying a target region of the myocardium...
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7306558 |
Fluid pressure generating means
A fluid pressure generating means (10) for a heart assist device having blood pumping means. The pressure generating means (10) includes a housing (11), defining an interior volume (18), and having...
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7282024 |
Cardiac harness having interconnected strands
A cardiac harness for treating a patient's heart includes elastic rows connected by a connector assembly. The connector assembly can have a specific pattern, or can be formed of elongated elastic...
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7275546 |
Anterior and inferior segment ventricular restoration apparatus and method
The symptoms of congenital heart failure are addressed in this surgical procedure for mounting a patch in the ventricle of the heart to reduce ventricular volume. Placement of the patch is...
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7241257 |
Devices and methods to perform minimally invasive surgeries
In one embodiment, there is disclosed a device adapted to be used for percutaneous minimally invasive heart surgery including a catheter having a proximal end and a distal end adapted to be fed...
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7217236 |
Universal pneumatic ventricular assist device
A pneumatic ventricular assist device (VAD) is disclosed for use in any circulatory support application including RVAD, LAVD, or BIVAD, trans-operative, short-term or long-term, tethered...
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7189260 |
Ventricular assist system secondary impeller
In a centrifugal flow blood pump, usable in left ventricular assist applications, blood is pumped from an inlet (16) to an outlet (22) by a primary impeller (18). A portion of the blood that enters...
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7175588 |
Method and system for detecting ventricular collapse
A pump system includes an implantable pump including a motor having a rotor and a stator. The stator includes a plurality of stator windings, and a motor controller is coupled to the motor to...
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7169109 |
Methods and apparatus for controlling heart assist devices
An apparatus for a heart assist device, comprising a processing unit for computing the blood flow rate from the arterial pressure curve and for predicting at every heartbeat the closing time of the...
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