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8177703 |
Blood pump
A blood pump (26) includes a stator assembly including a fluid inlet (24) and a fluid outlet (26). A rotor assembly (120) includes an impeller (40) rotatable about an axis (44) to move fluid from...
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8157720 |
Heart assist system
A supplemental blood flow system for assisting with blood circulation in a patient. The system includes a supplemental blood flow device implantable in the patient and a controller for directing...
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8133168 |
Remediation of functional cardiac mitral valve regurgitation
A dynamic device for reducing functional mitral regurgitation is described. The device is disposed externally to the heart and effectively acts as a splint for reducing further dilation of the...
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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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8092364 |
Methods, devices and systems for counterpulsation of blood flow to and from the circulatory system
Counterpulsation methods and systems for assisting the heart of a patient involve, for example, coordinating the operation of a pulsatile pump to suction blood from an artery through a first...
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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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8016739 |
Heart assist devices, systems and methods
An apparatus and method for use in assisting a human heart are disclosed. The apparatus comprises an aortic compression means which may be fully implanatable, a fluid reservoir and a pump means...
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8016738 |
Methods and apparatus for selecting intra-aortic balloon deflation timing
The present invention provides methods and apparatus for selecting a deflation timing mode for an intra-aortic balloon (IAB) based on comparison of the time required to deflate the IAB and the time...
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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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7976452 |
Long term ambulatory intro-aortic balloon pump with percutaneous access device
Disclosed herein are embodiments of long-term ambulatory intra-aortic balloon pump systems for providing left ventricular cardiac assistance to a patient. The systems can comprise an external drive...
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7959643 |
Intra-aortic balloon counterpulsation with concurrent hypothermia
Devices, systems and methods for treating disorders characterized by low cardiac output. The devices, systems and methods use intra-aortic balloon counterpulsation in combination with hypothermia...
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7955248 |
Actuator for a heart assist device
An actuator (10) for a heart assist device. The actuator (10) includes an inflatable balloon (12) and a shroud or wrap (14). The inflatable balloon (12) has a first body portion (22), a second body...
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7927268 |
Counterpulsation device with increased volume-displacement efficiency and methods of use
A method for mechanically assisting the pumping action of the heart. A catheter is provided comprising an elongate member having a proximal end, a distal region, an expandable member attached in...
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7914436 |
Method and apparatus for pumping blood
At least one aspect of the invention is directed to a pump system for pumping blood though a body passageway. The pump system includes a distal section having at least one inlet to receive blood, a...
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7892162 |
Arterial interface
Devices and methods are disclosed for implanting, positioning, removing and replacing devices that penetrate an artery.
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7887478 |
Percutaneous gas-line
A percutaneous gas-line (10) for a medical device (14). The gas-line including a first gas-line part (10a) and a second gas-line part (10b). The first gas-line part (10a) is adapted to be wholly...
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7824325 |
In vivo for improving diastolic ventricular function
The present invention provides an anatomically-compatible and physiologically-compatible in vivo device for improving diastolic function of either the left or right ventricle of the heart,...
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7798815 |
Computer-controlled tissue-based simulator for training in cardiac surgical techniques
The present invention is directed to an electromechanical pumping system for simulating the beating of heart in a cardiac surgery training environment. A computer-controllable linear actuator is...
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7780604 |
Method and device for the intermittent occlusion of the coronary sinus
In a method for intermittently occluding the coronary sinus, in which the coronary sinus is occluded using an occlusion device, the fluid pressure in the occluded coronary sinus is continuously...
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7766853 |
Peripheral access devices and systems
A cannulation system (10) for perfusing a patient's circulatory system, includes an inflow cannula (14) having a first end adapted to be connected to said circulatory system and a second end...
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7766813 |
Methods, devices and systems for counterpulsation of blood flow to and from the circulatory system
Counterpulsation methods and systems for assisting the heart of a patient involve, for example, coordinating the operation of a pulsatile pump to suction blood from an artery through a first...
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7762976 |
Automatic air removal system
An apparatus for extracorporeal oxygenation of a patient's blood during cardiopulmonary bypass surgery. The apparatus comprises a bubble sensor, arranged at or connected to a venous line, for...
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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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7695425 |
Heart wall tension reduction apparatus and method
An apparatus for treatment of a failing heart by reducing the wall tension therein. In one embodiment, the apparatus includes a tension member for drawing at least two walls of a heart chamber...
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7601117 |
Systems and methods for assisting cardiac valve coaptation
Systems and methods for reducing distention in designated portions of a heart muscle while assisting cardiac valve alignment and coaptation. Anchoring devices are secured to the heart muscle and a...
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7527599 |
Method of determining cardiac indicators
A system and method for determining indicators of left ventricular function, and for determining the effectiveness of a cardiac therapy are disclosed. The indicators of left ventricular function...
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7513864 |
Synchronization system between aortic valve and cardiac assist device
A cardiac assist device synchronization system includes a cardiac assist device and an acoustic or accelerometer sensor that provides a signal input to the cardiac assist device indicative of...
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7468027 |
Partial aortic occlusion devices and methods for cerebral perfusion augmentation
Methods are provided for partial aortic obstruction for cerebral perfusion augmentation in patients suffering from global or focal cerebral ischemia. Alternatively, the methods can be used to...
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7450988 |
Method and apparatus for minimizing post-infarct ventricular remodeling
A cardiac rhythm management device is configured to deliver pre-excitation pacing to one or more sites in proximity to an infarcted region of the ventricular myocardium. The pre-excitation pacing...
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7374531 |
Long term ambulatory intra-aortic balloon pump with three dimensional tortuous shape
An inflatable balloon pump can be anchored with respect to a wall of the aorta for endoscopic surgical positioning with respect to the aorta of the patient. After engagement of the anchor member in...
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7367959 |
Device for cardiocirculatory assistance
A device for cardiocirculatory assistance, also named a ventricular assist device, includes a haematic pump (50) with a pump body (7) having an inner space (21) defined by a rigid structure (51)...
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7361137 |
Surgical procedures and devices for increasing cardiac output of the heart
Methods and devices for passively assisting the cardiac function of the heart are disclosed. A method of increasing the cardiac output of a heart includes providing a site of surgical access to the...
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7357771 |
Heart assist devices, systems and methods
An apparatus and method for use in assisting a human heart are disclosed. The apparatus comprises an aortic compression means which may be fully implanatable, a fluid reservoir and a pump means...
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7347811 |
Heart assist device utilising aortic deformation
The present invention relates to providing counter-pulsation heart assist by deforming the aorta. In a preferred embodiment, the deformation pressure is applied by cyclically, preferably in...
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7273446 |
Methods, devices and systems for counterpulsation of blood flow to and from the circulatory system
Counterpulsation methods and systems for assisting the heart of a patient involve, for example, coordinating the operation of a pulsatile pump to suction blood from an artery through a first...
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7229403 |
Intra-aortic balloon catheter having a dual sensor pressure sensing system
A balloon catheter has a balloon membrane, a tip connected to the distal end of the balloon membrane and an outer tube connected to the proximal end of the balloon membrane for supplying a medium...
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7182727 |
Single port cardiac support apparatus
A minimal intrusive cardiac support apparatus is disclosed which requires only one incision into a main blood vessel or heart chamber. The apparatus includes a pair of generally coaxial and...
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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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7118356 |
Fluid pump with a tubular driver body capable of selective axial expansion and contraction
A fluid pump for pumping fluid. The fluid pump includes a driver having a substantially tubular shaped body defining a body axis and, a number of elements circumferentially spaced around the body....
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7090644 |
Device for determining a characteristic point in the cardiac cycle
The present invention relates to a device for determining a characteristic point in the cardiac cycle that comprises means for calculating the curve of the blood flow rate D(t) in the aorta from...
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7025718 |
Method and device for correcting in-vivo sensor drift
A method and device for reducing signal drift on a balloon catheter mounted pressure sensor by adjusting for signal gain and/or zero offset, and by separately calibrating the constant signal...
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6863648 |
Balloon pump system having a pressure reservoir muffler
A vacuum reservoir, for use with an intra-aortic balloon pump or other system, containing a muffling means having a honeycomb-like cell structure or other flow straightening structure.
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6800068 |
Intra-aortic balloon counterpulsation with concurrent hypothermia
Devices, systems and methods for treating disorders characterized by low cardiac output. The devices, systems and methods use intra-aortic balloon counterpulsation in combination with hypothermia...
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6790171 |
Method and device for transventricular mechanical circulatory support
Invention relates to a cannula and a screw pump for use in a mechanical circulatory support device, in particular a transventricular circulatory support device. The cannula according to the present...
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6735532 |
Cardiovascular support control system
An apparatus and method for assisting cardiac function of a patient includes a flaccid inflatable chamber held at a predetermined volume generally midway between fully inflated and fully deflated...
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6699259 |
Minimally invasive direct cardiac massage device and method
A minimally invasive device for performing direct cardiac massage including an inflatable bladder mounted on a rigid inflation tube. The rigid inflation tube is used to push the bladder into the...
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6679829 |
Intra-aortic balloon pump having improved automated electrocardiogram based intra-aortic balloon deflation timing
An intra-aortic balloon pump (IABP) having improved automated electrocardiogram (ECG) based intra-aortic balloon deflation timing. Said IABP capable of automatically determining to either deflate...
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6669624 |
Temporary heart-assist system
A balloon is positionable in the patient's descending aorta. The balloon includes a balloon catheter and two pressure sensors that electrically couple to an extra-corporeal controller. The balloon...
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6666814 |
Enhanced intra-aortic balloon assist device
The present invention is an intra-aortic circulatory enhancing apparatus for use in human patients to improve blood flow to other arteries continuous with the aorta of the patient. The apparatus...
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