Matches 301 - 350 out of 598 < 1 2 3 4 5 6 7 8 9 10 11 12 >
Match Document Document Title
5941813 Cardiac assist device  
In a cardiac assist device, a housing has an inlet and outlet connectable to a patient's cardiovascular system. A pump is located within the housing to force blood that has entered through the...
5935095 External slot valve for controlling blood flow through the outlet of a shunt of a cardiopulmonary bypass pump  
An external slot valve for controlling blood flow through the outlet of a shunt of a cardiopulmonary bypass pump wherein a valve seat having a knife edge is fixedly connected to the fixed plate of...
5928132 Closed chest intra-aortic balloon based ventricular assist device  
A closed chest intra-aortic balloon catheter based ventricular assist device comprising an intra-aortic balloon (IAB) catheter and a pumping chamber having a smaller diameter portion and a more...
5928131 Magnetically suspended fluid pump and control system  
A blood pump for assisting a heart is provided having a stator and a rotor. The rotor is magnetically radially supported creating a suspension gap between the stator and the rotor. The rotor can be...
5924975 Linear pump  
A linear pump includes a housing having a bore and axially spaced apart inlet and outlet. A first check valve is joined to the housing for controlling flow of fluid through the bore. A piston is...
5921913 Statorless intravascular microaxial flow pump  
An intravascular microaxial pump has an integrated configuration that enables both the drive unit as well as the pumping segment to be advanced through a patient's vasculature. The device includes...
5911685 Method and apparatus for cardiac blood flow assistance  
An intravascular microaxial pump has an integrated configuration that enables both the drive unit as well as the pumping segment to be advanced through a patient's vasculature. The device includes...
5910124 Ventricular assist device and method  
Cardiac ventricular assist apparatus adapted to be placed by insertion through an incision in the wall of the upper abdomen below the rib cage and an incision in the inferior aspect of the...
5908378 Bi-ventricular cardiac assist device  
A bi-ventricular cardiac assist device maintains blood circulation in a patient having a minimally functioning or malfunctioning heart. The biventricular cardiac assist device includes a...
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...
5902229 Drive system for controlling cardiac compression  
An inflation system for independently controlling the rise time and plateau level of a pressure profile applied to an inflatable chamber includes a pneumatic source disposed in fluid communication...
5888241 Cannula pumps for temporary cardiac support and methods of their application and use  
A cannula pump is provided which incorporates a miniature rotary pump into a cardiac cannula of essentially the same size as currently utilized with routine cardiopulmonary bypass. The pump may be...
5888186 Muscle energy converter activated assist system and method  
A system for assisting the operation of a patient's heart. The system includes a muscle energy converter which is capable of connecting to a muscle of the patient for converting energy of the...
5851174 Cardiac support device  
An apparatus for pumping blood includes an elongated housing dimensioned to be at least partially positioned within the heart of a patient, a rotating member supported for rotational movement...
5848962 Device for assisting cardiac function  
Disclosed is a device for assisting cardiac function having the following atures: at least one half-shell is provided, the interior and exterior contours of which are designed in such a manner...
5843088 Tool and method for installation of a ventricular cannulation device  
A ventricular cannulation device. An inner part is placed in the cardiac chamber and an outer part is placed outside the cardiac wall. Each of the inner and outer parts is equipped with means for...
5827171 Intravascular circulatory assist device  
A circulatory assist device, having an outer balloon and an inner balloon, with a control space between the outer and inner balloons. The device is mounted on a catheter, collapsed to a...
5824070 Hybrid flow blood pump  
A novel hydrodynamic blood pump with a very clean flow path free of outflow stator blades which have been found to be a site of blood clot formation is introduced. The invention combines an axial...
5823930 Cam controlled pulsatile flow pump for neonatal and biventricular cardiac support systems  
A cam controlled pulsatile flow pump for neonatal and biventricular cardiac support systems wherein cylindrical cams having various profiles designed for a particular patient are selectively...
5823185 Manual pressing and automatic air breathing cardiopulmonary resuscitation first-aid device  
This invention relates to a manual pressing and automatic air breathing cardiopulmonary resuscitation first-aid device, mainly comprising a manual pressing shaft, a pump, an air storage tank, a...
5820542 Modified circulatory assist device  
A circulatory assist device, having a housing and a pumping membrane, with a control chamber and a pumping chamber. The device is mounted on a catheter, collapsed to a sufficiently small diameter...
5814102 Process for training a skeletal muscle for a biomechanical heart and biomechanical heart using such a muscle  
A method for dynamically training a skeletal muscle (1) to be used for a biomechanical heart involves wrapping the skeletal muscle (1) around a deformable training device (2) which can contract,...
5810708 Ventricular assist conduit with externally supported tissue valve  
A ventricular assist device includes a pair of valved conduits and a pumping portion connected by these conduits into the circulatory system of a host patient. The pumping portion and valved...
5807384 Transmyocardial revascularization (TMR) enhanced treatment for coronary artery disease  
A transmyocardial revascularization (TMR) enhanced treatment for coronary artery disease and other medical procedures utilizing a source of laser energy and a laser delivery means attached thereto,...
5776190 Cannula pumps for temporary cardiac support and methods of their application and use  
A cannula pump is provided which incorporates a miniature rotary pump into a cardiac cannula of essentially the same size as currently utilized with routine cardiopulmonary bypass. The pump may be...
5766207 Driver and method for driving pneumatic ventricular assist devices  
A driver for at least one pneumatically-actuated ventricular assist device (VAD), includes a portable housing which encloses a single pump for performing blood-filling and blood-emptying operations...
5762599 Magnetically-coupled implantable medical devices  
Medical apparatus includes an external drive magnet mounted for rotation externally of a subject's body, an implantable driven magnet configured and dimensioned to be implantable in the subject's...
5758664 Method of maintaining a left ventricular assist device  
A method of making a left ventricular assist device (LVAD) using muscle wrapped around a mandrel to form a muscle pouch, the open end of which is sewn to a circular sheet of patch material having...
5755784 Cannula pumps for temporary cardiac support and methods of their application and use  
A cannula pump is provided which incorporates a miniature rotary pump into a cardiac cannula of essentially the same size as currently utilized with routine cardiopulmonary bypass. The pump may be...
5749839 Direct mechanical bi-ventricular cardiac assist device  
A direct mechanical bi-ventricular cardiac assist device comprises a ventricular actuation cup having two independently operated diaphragms for independently actuating the right and left ventricle...
5743845 Biventricular pulsatile cardiac support system having a mechanically balanced stroke volume  
A biventricular pulsatile cardiac support system having a mechanically balanced stroke volume wherein a pair of side-by-side, valveless, compressible conduits extend through the compression chamber...
5738627 Bi-ventricular cardiac assist device  
A bi-ventricular cardiac assist device maintains blood circulation in a patient having a minimally functioning or malfunctioning heart. The biventricular cardiac assist device includes a...
5738626 Two-step cardiomyoplasty with ventricular reduction  
Cardiomyoplasty is a high mortality procedure (fifty percent two year mortality) with limited hemodynamic benefit. Excision of left ventricular myocardium in dilated congestive heart failure is...
5728154 Communication method for implantable medical device  
A medical assembly, such as an artificial heart assembly, adapted to be implanted within a living subject is composed of an implantable data communications interface adapted to receive an encoded...
5728069 Device for the pulsed pumping of liquids, particularly blood  
A device for the pulsed pumping of liquids, particularly blood, has a body in which are formed a pumping chamber in which a pulsed flow is imparted to the liquid, an inlet duct upstream of the...
5722930 Reciprocating pump circulatory assist arrangement  
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...
5722429 Connecting arrangement for medical device  
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...
5718248 Muscle energy converter pump and method of pumping fluid of a patient  
A muscle energy converter pump. The muscle energy converter is comprised of a piston having an attachment head for connection to a muscle. The muscle energy converter also comprises a cylinder...
5716318 Method of treating cardiac arrest and apparatus for same  
A method of treating a subject in cardiac arrest comprises the steps of blocking the descending aorta of the subject and perfusing the aortic arch of the subject with a protective solution in an...
5711753 Blood pump device and method of pumping blood  
The present invention pertains to a blood pump device which comprises a blood pump having blood transport ports and cannulae connected to the ports. The blood pump device also comprises a coating...
5704891 Electrohydraulic ventricular assist device  
A unified system for implantation in the thorax and for cannulation to the blood circulatory system comprises an electronic controller for generating an actuating signal and an energy convertor for...
RE35707 Apparatus for driving medical appliances  
A self-propelled wheelchair type artificial heart driving apparatus for giving freedom of movement to those patients who require an auxiliary artificial heart. Various safety devices are provided...
5701919 Step-down skeletal muscle energy conversion system  
This invention provides a simple skeletal muscle linear pull energy convertor which can harness the maximal amount of muscle power for a wide variety of implantable medical devices, including the...
5693000 Cardiomyoplasty simulator with feedback control  
A cardiomyoplastic muscle is stimulated electronically using a closed loop control system. As part of the system, a signal sensed the muscle which is characteristic of its condition. If this signal...
5688245 Cannula system for a biventricular cardiac support system or a cardiopulmonary bypass system  
A cannula system for a biventricular cardiac support system or a cardiopulmonary bypass system wherein a first cannula having a pair of side-by-side lumens is adapted to be positioned within the...
5685700 Bearing and seal-free blood pump  
A pump for transferring fragile and aggressive liquids such as human blood and comprising a pumping chamber along with a pair of fluid inlet ports arranged in oppositely disposed relationship on...
5683455 Training appliance for a muscle  
Implantable training appliance for a muscle, which is present for supporting the heart muscle, having a first chamber (3) which is filled with a gaseous and/or a liquid medium, has elastically...
5678570 Method of treating cardiac arrest  
A method of treating a subject under cardiac arrest comprises the steps of: blocking the descending aorta of the subject; then withdrawing blood from the subject; oxygenating the blood withdrawn...
5676632 Ventricular assist devices of enhanced hemocompatibility  
Ventricular assist devices fabricated from low-modulus Ti--Nb--Zr alloys to provide enhanced biocompatibility and hemocompatibility. The ventricular assist devices may be surface hardened by oxygen...
5674281 Artificial heart braking system  
An artificial heart assembly, designed for implantation into a subject, which may be a total artificial heart or a ventricular assist device. The heart assembly has a blood inlet conduit, a blood...
Matches 301 - 350 out of 598 < 1 2 3 4 5 6 7 8 9 10 11 12 >