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| Number | Title | Issue Date |
| 7351240 | Thermodynamically driven reversible infuser pump for use as a remotely controlled gastric band An implantable artificial sphincter system provides long-term adjustment via transcutaneous energy transfer (TET), minimizing invasive adjustment through adding or removing fluid via a syringe. An infuser device provides bi-directional fluid transfer via a flexible ... | 04/01/2008 |
| 7303581 | Artificial heart using magnetohydrodynamic propulsionh An implantable artificial heart apparatus which has no moving parts. It employs the technology of magnetohydrodynamics (MHD) to induce flow of human blood. An MHD propulsion unit is a device which applies magnetic and electric fields to blood to propel the conductiv... | 12/04/2007 |
| 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 |
| 7121291 | Check valve, auxiliary circulating device and method for driving the auxiliary circulating device A check valve includes a casing member, a tear-drop shaped ball member installed in the casing member, a latching member which is formed at an inner wall of the casing member and an airtight valve which is formed at an inner wall of the casing member. When forward f... | 10/17/2006 |
| 6641612 | Ambulatory blood pump A blood pump intended to be carried by a freely moving patient uses perpendicular magnetic and electrical fields to propel blood. A rod mounted coaxially inside a tube has electrodes in blood contact for establishing a radial electric field, and an induct... | 11/04/2003 |
| 6592620 | Power system for an implantable heart pump A power system for an implantable heart pump is provided. The system includes two batteries, a microprocessor controller, two motor drivers, a multiplexer, two stators and a TET coil. During normal operation, only one battery and one motor driver are in u... | 07/15/2003 |
| 6579315 | Artificial heart power supply system An apparatus adapted to be used in connection with an artificial heart assembly having a blood inlet conduit, a blood outlet conduit, and a pump that pumps blood from the blood inlet conduit to the blood outlet conduit. The apparatus includes an internal ... | 06/17/2003 |
| 6478820 | Artificial heart with synchronous rectification An apparatus adapted to be used in connection with an artificial heart assembly having a blood inlet conduit, a blood outlet conduit, and a pump that is adapted to pump blood from the blood inlet conduit to the blood outlet conduit. The apparatus includes... | 11/12/2002 |
| 6458164 | Artificial heart with energy recovery An apparatus for use in an artificial heart assembly includes an internal coil adapted to be implanted beneath the skin of a subject and an external coil coupled to transmit electric power to the internal coil through the skin of the subject. The apparatu... | 10/01/2002 |
| 6451055 | Artificial heart data communication system An artificial heart assembly is provided with a blood inlet conduit, a blood outlet conduit, a pump that pumps blood from the blood inlet conduit to the blood outlet conduit, and an internal electromagnetic coupler adapted to be implanted beneath the skin... | 09/17/2002 |
| 6366817 | Electromagnetic field source device with detection of position of secondary coil in relation to multiple primary coils An electromagnetic field source (EFS) for providing electromagnetic energy to a secondary coil, including two or more primary coils that each carry a time-varying current to produce an electromagnetic field, and a controller that selectively provides curr... | 04/02/2002 |
| 6342071 | Ambulatory blood pump A blood pump intended to be carried by a freely moving patient uses perpendicular magnetic and electrical fields to propel blood. A rod mounted coaxially inside a tube has electrodes in blood contact for establishing a radial electric field, and an induct... | 01/29/2002 |
| 6123726 | Portable drive system for artificial heart A portable drive system for an artificial heart can be provided that includes a blood pump 1 having a blood seal for sealing a rotation shaft 13, a system drive section 45 including a purge solution circulator 20 for supplying by circulating purge solutio... | 09/26/2000 |
| 5904646 | Infection resistant power cable system for medically implanted electric motors Implanted medical devices such as heart assist devices powered by electric motors or solenoids require a high amount of power compared to other electric implants such as pacemakers which do not use motors. A percutaneous power transmission system for use ... | 05/18/1999 |
| 5736590 | Process for producing an electrically driven mechanochemical actuator A process for producing an electrically driven mechanochemical actuator comprising: (a) immersing a mixture of poly(2-hydroxethyl methacrylate) and poly(methacrylic acid) crosslinked with 1,1,1-trimethylol propane trimethacrylate and ethylene glycol dimet... | 04/07/1998 |
| 5693091 | Artificial heart and method of maintaining blood flow In one embodiment described in the specification, a surgically implantable reciprocating pump employs a check valve as the piston, which is driven by a permanent magnet linear electric motor to assist either side of the natural heart. The pump is implante... | 12/02/1997 |
| 5129789 | Means and method of pumping fluids, particularly biological fluids A system for pumping of fluids, particularly biological fluids such as blood, including a tubular length of magnetostrictive material. One-way valves are positioned generally in opposite ends of the tubular material. Fluid flow conduits are connected to t... | 07/14/1992 |
| 4895150 | Implanted power source A housing for enclosing a power source for operating an implanted artificial organ is provided. The housing has an annular rim defining an aperture and is mounted in the human body such that replacement of the power source through the aperture is effected... | 01/23/1990 |
| 4488099 | Real time servo control apparatus and method Real time servo control in a nonlinear, cyclical dynamic system adjusts the energy applied to a prime mover from a source of the energy as a linear function of an error between the measured load characteristics and modeled load characteristics. The modele... | 12/11/1984 |
| 4143661 | Power supply for body implant and method for operation A power supply system to operate an implanted electric-powered device such as a blood pump. A secondary coil having a biocompatible covering is implanted to subcutaneously encircle either the abdomen or the thigh at a location close to the exterior skin. ... | 03/13/1979 |
