Matches 1 - 30 out of 30
Match Document Document Title
7374573 System and method for improving ventricular function  
An approach is disclosed for improving ventricular function of a patient's heart. According to one embodiment, the system includes a pouch that defines a chamber dimensioned and configured to...
7371223 Electroactive polymer actuated heart-lung bypass pumps  
A pump apparatus, which comprises: (a) a tubular portion comprising an electroactive polymer actuator that expands and contracts an inner volume of the tubular portion based upon received control...
6343605 Percutaneous transluminal myocardial implantation device and method  
Devices and methods for increasing the volume of blood pumped by a heart muscle are disclosed. A therapeutic catheter in accordance with the present invention may comprise an elongate shaft having...
6080163 Device and method for trans myocardial revascularization (TMR)  
A stent for insertion into a heart wall for Trans Myocardial Revascularization (TMR) thereof. The TMR stent provides for the delivery of blood nutrients from a heart chamber into the heart wall and...
6063115 Cardiac assistance system  
A system to provide cardiac assistance to a patient's heart. The system includes a pulse generator adapted to be coupled to patient's heart and adapted to be coupled to a skeletal muscle ventricle...
5984857 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...
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,...
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...
5571176 Partially autogenous four chambered heart  
An autogenous heart having a physiology similar to a native heart is formed from two muscle segments which are wrapped about a mold and divided to form four chambers. To form this heart, two...
5456715 Implantable mechanical system for assisting blood circulation  
Implantable mechanical system for assisting blood circulation using a blood circulation pump and wherein the system, being actuated by the power produced by the linear contraction of the skeletal...
5443504 Basic 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...
5397349 Muscle and air powered LVAD  
A method for providing ventricular assist to a patient with a weak or nonfunctional heart includes attaching an artificial ventricle to a patient and pumping said artificial ventricle with a muscle...
5364337 Muscle powered cardiac assist system  
A method and apparatus for providing assistance to a patient's heart using a surgically prepared skeletal muscle. A skeletal muscle, such as the latissimus dorsi, is carefully separated from the...
5358519 Muscle control and monitoring system  
Apparatus and method for monitoring the performance of skeletal muscle used in a skeletal muscle powered cardiac assist system. The longest term monitoring is performed by an oxygen sensor which...
5318501 Linear motion, muscle-actuated cardiac assist device  
A linear motion, muscle-actuated cardiac assist device novelly uses a powering muscle whose contractions and relaxations are made in a substantially linear fashion, as opposed to the curvilinear...
5273518 Cardiac assist apparatus  
Regulators for improved cardiac assist systems of the type including skeletal muscle powered fluid pressure means, a cardiac cup and/or an aortic balloon pump. The regulators convert the positive...
5222980 Implantable heart-assist device  
An implantable heart-assist device including extra-aortic balloon pump (EAB pump) for use in cooperation with a fluid pump is disclosed. The extra-aortic balloon pump includes a rigid, generally...
5098442 Muscle contraction control by intramuscular pressure monitoring  
A technique for monitoring the performance of a skeletal muscle used in a cardiac assist sytem. The skeletal muscle is surgically wrapped about the heart, the descending aorta, or a chamber...
5089019 Muscle work output monitor by intramuscular temperature variation measurement  
Apparatus and method for monitoring performance of a skeletal muscle powered cardiac assist system. A chronically implantable temperature sensor is imbedded within the skeletal muscle. Muscle...
5069680 Muscle stimulator with variable duty cycle  
Apparatus and method of controlling a muscle stimulator by varying the duty cycle. The muscle stimulator is particularly adapted to a skeletal muscle powered cardiac assist system. An activity or...
5067960 Muscle fitness detection by colorimetry  
Apparatus and method for monitoring the performance of skeletal muscle used in a skeletal muscle powered cardiac assist system. The monitoring is performed by an oxygen sensor which determines the...
5007927 Muscle-powered cardiac assist device  
A method and apparatus is provided for enhancing blood circulation, and thereby reducing fatigue, in a skeletal muscle used for powering a cardiac assist device wherein the muscle is positioned to...
4968293 Circulatory assist device  
An assist device for the heart comprises a continuous flow pump for moving blood through a vessel and a muscle powered device for supplying pulsatility to the flow of blood, to simulate human heart...
4919661 Autogeneous pumping chamber and procedures therefor  
Means and methods of creating an autogeneous pumping chamber for ventricular replacement or ventricular assist while avoiding heart transplantation. A chamber is created by wrapping a major...
4813952 Cardiac assist device  
A muscle-powered pump to assist the natural heart is disclosed. The device comprises an oblate, spheroidal-shaped pumping chamber surrounded by innervated muscular tissue. The device may be coupled...
4759760 Cardiovascular pump system  
Structure and a method of implanting the structure to assist a patient's cardiovascular system in pumping blood from a vein to an artery. A chamber is associated with a vein and an artery to allow...
4666443 Biventricular circulatory assist system and method  
A biventricular circulatory support system for a human patient is described. A mechanical first pump for assuming at least a part of the pumping load of the patient's left ventricle is implanted in...
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,...
4453537 Apparatus for powering a body implant device  
An apparatus for powering a pressure actuated body implant device is disclosed. Preferably, the apparatus is utilized to power an artificial heart. The apparatus comprises a reservoir implantable...
4078267 Artificial heart propelled by respiratory muscles  
An artificial heart comprising two ventricles (8) and two atria (9) adapted for inclusion in a blood circulation system via valves (17), to operate in the same manner as a live heart. The heart...
Matches 1 - 30 out of 30