Matches 1 - 10 out of 10
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5513956 Circulatory assisted device with motor driven gas pump  
A balloon pump for a circulatory assist device, the pump comprising a pumping chamber of variable volume in which a diaphragm assembly is displaceable in first and second pumping directions to...
5306295 Electrohydraulic heart with septum mounted pump  
A total artificial heart for placement inside a living body comprising right and left ventricle enclosures, wherein each ventricle includes an exterior wall formed of (i) contacting wall structure...
5282849 Ventricle assist device with volume displacement chamber  
A ventricle assist device for placement within a living body and including a self contained drive motor for generating pumping action with respect to a hydraulic pumping fluid. The ventricle assist...
5066300 Twin replacement heart  
Two redundant hearts are operated simultaneously for normal patient activity, one of said hearts having sufficient capacity to maintain life at a reduced activity in the event of failure of the...
4750903 Artificial heart  
An artificial heart is made of a pair of substantially seamless, polyurethane rigid outer housings each having a shape approximating the combined outer shape of a natural cardiac ventricle and its...
4524466 Continuous rotation reversible pitch axial thrust heart pump  
A continuous and unidirectional rotation reversible pitch axial thrust heart pump having a blood handling housing with first inlet and outlet check valves connected to the housing and second inlet...
4397049 Hydraulically actuated cardiac prosthesis with three-way ventricular valving  
A cardiac prosthesis having an hydraulically actuated compressible blood pump. An actuation chamber adjacent the blood pump receives hydraulic actuation fluid from an actuator pump through a...
4382199 Hydrodynamic bearing system for a brushless DC motor  
A hydrodynamic bearing system for a motor. The motor is illustrated and described as driving a pump for an artificial heart. The motor stator has a cylindrical bore which is closed at one end. The...
4381567 Hydraulically actuated total cardiac prosthesis with reversible pump and three-way ventricular valving  
A total cardiac prosthesis having a pair of hydraulically actuated compressible blood pumps. An actuation chamber adjacent each blood pump receives hydraulic actuation fluid from a separate...
4173796 Total artificial hearts and cardiac assist devices powered and controlled by reversible electrohydraulic energy converters  
Total artificial hearts and circulatory assist devices, including left ventricular assist devices. The invention relates to electrohydraulic energy converter systems, whereby electric energy from a...
Matches 1 - 10 out of 10