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| Number | Title | Issue Date |
| 7857847 | One-piece heart prosthesis implantable in an anatomical position One-piece heart prosthesis implantable in an anatomical position. According to the invention, the artificial left and right ventricles (2, 8) have general directions (14, 15) arranged in an asymmetrical V shape, such that said ventricles approach each ... | 12/28/2010 |
| 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 heart during each cardiac cycle. The device partitions blood within ... | 03/11/2008 |
| 7238165 | Fluid pump A pumping system 10 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 port 60 includes a ball valve... | 07/03/2007 |
| 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 to move the wall from an expanded position to a contracted position an... | 02/06/2007 |
| 7144365 | Implantable heart assist system and method of applying same An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and method of using same. One embodiment of the extracardiac system comprises a pump ... | 12/05/2006 |
| 7125376 | Implantable heart assist system and method of applying same An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system co... | 10/24/2006 |
| 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 insufficiency, to thereby enable oxygen to be supplied smoothly toward the ... | 09/12/2006 |
| 7066874 | Devices and methods for blood flow assistance Devices and methods are disclosed for assisting in blood flow from a weakened or injured heart, particularly for pediatric patients. A low profile, multi-chambered implantable mechanism is used to collect blood from a blood vessel and re-pump the blood out with an i... | 06/27/2006 |
| 6979346 | System and method for improved stent retention An implantable medical device, such as a stent, having roughened areas on an inner surface of the device for enhancing frictional contact between the medical device and a delivery system, such as a balloon catheter to secure the medical device to the delivery system... | 12/27/2005 |
| 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 outlet ports. Such design enables a significantly better spac... | 12/30/2003 |
| 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 chambers in sequence and to a common outlet, thus operating as ... | 07/24/2001 |
| 6074365 | Ferrofluid-supported electromagnetic drive for a blood pump for supporting the heart or partially or totally replacing the heart The invention relates to a magnetofluid-supported electromagnetic drive for a blood pump for supporting or partially to totally replacing the heart whereby the blood pump in its weight as well as its energy density nearly corresponds to the natural heart ... | 06/13/2000 |
| 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 formed in a seamless piece of flexible resilient material hav... | 02/04/1997 |
| 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 disposed within the pumping chamber. A motor rotates a revolving... | 11/26/1996 |
| 5511958 | 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 formed in a seamless piece of flexible resilient material hav... | 04/30/1996 |
| 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 bracket mounted to rotate about the axis of the drum and conn... | 12/21/1993 |
| 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 (Za, Zb). The piston (21a,21b) is provided for periodically pressing and releasing a ... | 11/23/1993 |
| 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 inserts have extensions which protrude through the inlet a... | 05/18/1993 |
| 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 only in one direction and defining a pump chamber (14) the... | 04/28/1992 |
| 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 from the chamber. A deflectable diaphragm comprises a wall... | 04/09/1991 |
| 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 increase perfusion of specific organs in order to overcome t... | 07/03/1990 |
| 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, incorporating their own electro-mechanical pumping system an... | 04/11/1989 |
| 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, wherein the ventricular and atrial chambers are driven in... | 03/24/1987 |
| 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 communicating the outlet of the atrium chamber with the inlet ... | 03/10/1987 |
| 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 extra-pericardial unit (4), including their own electro-mechanical pump... | 11/18/1986 |
| 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 a drum (50), and a bracket (60) rotatable about the axis ... | 03/18/1986 |
| 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 walls, each joined to the annular side wall through a flex... | 12/10/1985 |
| 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 which may be alternately driven. A pump is achieved which need... | 04/23/1985 |
| 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 fluid coupling which enables idling of the spinner during... | 10/13/1981 |
| 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 pancake-shaped deformable sac of flexible resilient, blood compa... | 09/11/1979 |
| 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 portions by a flexible membrane. A piston attached to the memb... | 05/08/1979 |
| 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 receives an ejection plate pivoted near one end to a firs... | 03/13/1979 |
| 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 powered by radio frequency induction across intact skin drives... | 11/22/1977 |
