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Document |
Document Title |
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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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7172551 |
Cyclical pressure coronary assist pump
An intravascular pump, which may be a left ventricle assist device, comprising a wall defining a pumping chamber, the wall support by struts, the struts attached to or part of an actuation system...
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7105022 |
Implantable left ventricular assist device with cylindrical cam
An implantable left ventricular assist device using a cylindrical cam is provided, which is produced in a compact and module form and implanted in a patient who suffers from an acute cardiac...
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6669726 |
Orthotopic total artificial heart
An orthotopic total artificial heart for replacing the human heart comprising a new design of two assembled blood chambers with an original layout between themselves and between their inlet and...
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6264601 |
Implantable ventricular assist device
An implantable ventricular assist device (VAD) has a small size to provide full-implantable capabilities. The VAD has two variable-volume chambers and an actuator for expelling blood from the...
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6074365 |
Ferrofluid-supported electromagnetic drive for a blood pump for supporting the heart or partially or totally replacing the heart
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5599173 |
Blood pump system
A pump system is described which is particularly suited for use as a left ventricular assist device for internal use in humans. The pump system generally includes a pump having a deformable sac...
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5578012 |
Medical fluid pump
A medical pump apparatus including an internally sterile pumping chamber having a flexible diaphragm forming a wall portion and a drive rod extending through the diaphragm in a rotating vane...
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5271746 |
Implantable blood pump with inextensible deformable closed bag
The invention relates to an implantable blood pump of the type comprising a shell, a closed deformable bag, an inlet valve and an outlet valve, a drum arranged to roll over a wall of the bag, a...
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5263978 |
Blood pump for pulsating operation
A blood pump housing (43) accommodates at least one piston (21a,21b) driven by a coupling point (19a,19b) on a triangular closed hypocycloidal path (Z a , Z b ). The piston (21a,21b) is provided...
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5211659 |
Pump system suitable as a heart assist device
Artificial heart type devices are made into practical heart assist devices by making the blood chambers of the device disposable or by adapting the blood chambers to accept disposable inserts. The...
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5108426 |
Implantable blood pump
An implantable blood pump comprises a flow passage (13) and two valves (15, 16), located spaced apart in the longitudinal direction of said passage (13) and permitting a flow of blood therethrough...
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5006104 |
Heart pump having contractible guide mechanism for pusher plate
A blood pump is disclosed that is useful as ventricle assist or replacement device comprising a housing having a blood chamber and inlet and outlet ports for the ingress and egress of blood to and...
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4938766 |
Prosthetic compliance devices
Implantable prosthetic devices and methods of use for increasing blood flow by increasing arterial compliance and reducing the magnitude of the pressure pulsations in the arterial system, and to...
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4820301 |
Total artificial heart comprising two disconnected pumps associated into one functionally indissociable unit
This invention relates to a total artificial heart intended to replace a diseased human heart. According to the invention, this prosthesis comprises a pericardial module and an abdominal module,...
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4652265 |
Implantable blood pump and integral apparatus for the operation thereof
A blood pump is powered by an implantable motive power source. The blood pump has four actively pumping chambers, two of the chambers simulating ventricles and two of the chambers simulating atria,...
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4648877 |
Blood pump
A blood pump comprises an atrium chamber defined by flexible walls and having an inlet and an outlet, a ventricle chamber defined by flexible walls and having an inlet and an outlet, a passage...
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4623350 |
Total heart prothesis comprising two uncoupled pumps associated in a functionally undissociable unit
The present invention relates to a total cardiac prothesis destined to replace the sick human heart. According to the invention, this prothesis comprises a pericardial unit (3) and an...
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4576606 |
Implantable blood pump
Inside a flexible shell (10), a deformable pocket (20) is connected to blood circulation via an inlet valve (30) and an outlet valve (40). The pocket is compressed by a floating assembly comprising...
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4557673 |
Implantable pump
A chamber structure in a blood pump or the like is described. The structure includes a deformable sac having an annular side wall which is held in a rigid condition, and a pair of opposed circular...
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4512726 |
Pump adaptable for use as an artificial heart
A pump adaptable for use as a human heart includes first and third pump chambers separated from an intermediate second chamber which may house a motor. The chambers are separated by diaphragms...
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4293961 |
Pulsatile flow cardiopulmonary bypass pump
A pulsatile flow cardiopulmonary bypass pump for use outside of the body during cardiac surgery and/or in the period immediately thereafter is disclosed. A grooved spinner is motor driven through a...
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4167046 |
Blood pumping device
A blood pumping device is described for internal use in humans or animals and which is particularly suitable for use as a left ventricular assist device. The device is comprised of a unitary...
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4152786 |
Compensator for implanted blood pump
A compensator designed to be implanted within a living body and connected to an implanted reciprocating blood pump. A housing defines a gas-tight chamber which is separated into front and rear...
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4143425 |
Left atrial to descending thoracic aorta left ventricular assist device
An implanted tether-free externally powered motor with suitable reduction gearing drives a spirally grooved shaft having a ring housing for a shaft follower pin. A rectangular cross section chamber...
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4058857 |
Cardiac replacement pumping devices
A pumping device whose functioning resembles the action of the natural four chambered heart is constructed as a total cardiac replacement unit. An internal electrical drive motor adapted to be...
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3885251 |
Artificial heart pump or assist
An implantable artificial heart pump or heart assist for providing or enhancing a controlled cyclic blood flow through an artery, the pump including a tubular section secured between adjacent ends...
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3127846 |
Artificial blood pump means
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2954738 |
Diaphragm pump
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