Matches 251 - 300 out of 598 < 1 2 3 4 5 6 7 8 9 10 11 12 >
Match Document Document Title
6155969 Centrifugal pump for pumping blood and other shear-sensitive liquids  
The invention relates to a centrifugal pump comprising a pump head (1) and a drive (2) for delivering blood and other ?-sensitive fluids, such as cell-containing cleaning suspensions, for example,...
6155968 Method and device for improving cardiac function  
In a method for improving cardiac function, a compressive device is inserted into an intrapericardial space about a lower end portion of a heart. Thereafter the compressive device is operated to...
6149683 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...
6146325 Ventricular assist device  
An implantable VAD (preferably an LVAD) includes a compliance chamber which forms a reservoir for liquid extending from adjacent the bottom of the compliance chamber upwardly towards the top of the...
6139487 Intracardiac pump device  
The pump device comprises a first pump (10a) that may have its intake side inserted into the left ventricle (42) of the heart, while the delivery side is located in the aorta (40), and a second...
6135943 Non-invasive flow indicator for a rotary blood pump  
An apparatus for non-invasive flow indication through a rotary blood pump. The apparatus includes a blood pump adapted for implantation into a patient. The blood pump has a moving mechanism which...
6135729 Blood pump bearing system  
An apparatus is are provided for a blood pump bearing system within a pump housing to support long-term high-speed rotation of a rotor with an impeller blade having a plurality of individual...
6135710 Turbo blood pump  
A blood pump used for extra corporeal circulation, and more particularly, as a small turbo blood pump including a casing having an interior region, an aperture formed in an upper portion defining a...
6132364 Heart assist system and method  
A one-way valve for use in a heart-assist device, said valve comprising: an outer sheath, defining an enclosing a lumen therein, and comprising a first radial opening; an inner sleeve,...
6132363 Cardiovascular support control system  
An apparatus for assisting cardiac function of a patient includes an inflatable chamber operably positionable with respect to an aorta of the patient, a percutaneous access device implantable with...
6127410 Compositions, apparatus and methods for facilitating surgical procedures  
Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and...
6125299 AED with force sensor  
A force sensor, for use in combination with an automated electronic defibrillator (AED), includes a first conductive layer. A second conductive layer is spaced apart from the first conductive layer...
6123659 Blood pump with profiled outflow region  
The invention provides an axial flow blood pump with slanting outflow components. Specifically, the invention provides a blood pump having an angling outer stator blade edge structure in...
6110098 System and method of mechanical treatment of cardiac fibrillation  
There is provided an implanted system and method for delivering subsonic mechanical waves to one or more selected patient areas, the areas including the patient's heart and/or lungs. The mechanical...
6106551 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...
6102845 Ventricular assist device with minimal blood contacting surfaces  
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...
6099460 Electromagnetic heart assist technique and apparatus  
A heart can be artificially contracted to pump blood by separate electromagnets to the exterior surface of the heart and implanting another electromagnet inside a heart chamber. Electric currents...
6095968 Reinforcement device  
A heart assist device intended for the long term support of certain late-stage cardiac failure states, particularly those known in the practice of cardiology to be called a dilated cardiomyopathy....
6087394 Compositions, apparatus and methods for facilitating surgical procedures  
Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and...
6086527 System for treating congestive heart failure  
A system is provided for regulating blood flow to a portion of the vasculature, such as the renal system, in order to treat heart disease. A regulator maintains blood flow so as to control...
6086526 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...
6083260 Reverse flow transport pump and organ stabilization apparatus including related methods  
A reverse flow pump for transporting bodily fluids comprising an outer pump housing formed with concentric inner and outer passageways, a rotatedly fixed rotor positioned within the pump housing,...
6077214 Stress reduction apparatus and method  
The device and method for reducing heart wall stress. The device can be one which reduces wall stress throughout the cardiac cycle or only a portion of the cardiac cycle. The device can be...
6071258 Perfusion control assembly with improved component visibility and accessibility  
An improved perfusion control assembly comprising a console and an oxygenator flanked by at least two flanking units, wherein a first flanking unit is a pump assembly and additional flanking units...
6068588 Counterbalanced pump  
Fluid is periodically pumped through a motor-driven tubular pump at a substantially constant pumping frequency. The pump includes at least one resiliently reciprocate counterbalancing ring joined...
6066085 Single chamber blood pump  
A blood pump apparatus can include a pump housing having a drive chamber containing a drive mechanism. A cupped member can be connected to the housing and the drive mechanism can include a motor...
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...
6060454 Compositions, apparatus and methods for facilitating surgical procedures  
Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and...
6059715 Heart wall tension reduction apparatus  
An apparatus for treatment of a failing heart by reducing the wall tension therein. In one embodiment, the apparatus includes a tension member for drawing at least two walls of a heart chamber...
6058593 Method for producing a micro motor  
6057689 Apparatus and method for leak detection in a fluid-filled balloon useful to treat body tissue  
An apparatus for detecting leaks in a fluid-filled device used to treat a patient's tissue includes an catheter having an expandable device defining a fluid reservoir about the distal end of the...
6050936 Heart wall tension reduction apparatus  
An apparatus for treatment of a failing heart by reducing the wall tension therein. In one embodiment, the apparatus includes a tension member for drawing at least two walls of a heart chamber...
6050932 Control circuit for an implantable heart-assist pump of the back-pressure balloon type  
The pump (10) has variable volume means (24) co-operating with a distinct volume (20) through which the blood flows for the purpose of varying said volume (20) through which the blood flows in...
6045497 Heart wall tension reduction apparatus and method  
An apparatus for treatment of a failing heart by reducing the wall tension therein. In one embodiment, the apparatus includes a tension member for drawing at least two walls of a heart chamber...
6045496 Occluder device and method of making  
The present invention pertains to a circulatory system, such as a circulatory assist system for a patient. The system comprises a blood pump having tubing fluidically communicating with a person's...
6042347 Pedia-cadio pump  
An implantable electric pump for assisting blood flow in a patient in need thereof comprises a non-rotating pump housing and an electric motor enclosed within the housing, all motor components...
6030336 Pressure generator for a counterpressure cardiac assistance device  
A pump comprises variable volume means inserted in an artery, in particular, the descending aorta, enabling the volume through which the blood flows in this location to be modified cyclically and...
6030335 Implantable heart-assist pump of the back-pressure balloon type  
The pump comprises: an essentially rigid body open at both ends and designed to be inserted in the down aorta artery; a flexible and elastic membrane (18) in the form of a sleeve connected in...
6024692 Fluid circulator for nonlinear compliant circuits  
Flow in nonlinearly compliant leaky fluid circuits is controlled by alteration of control variables in fluid pathways external to the leaky circuits. In analogous practical applications, blood flow...
6024096 Anterior segment ventricular restoration apparatus and method  
The symptoms of congenital heart failure are addressed in this surgical procedure for mounting a patch in the ventricle of the heart to reduce ventricular volume. Placement of the patch is...
6008625 Use of double cells to power an implantable medical device  
A power source including two alkali metal/transition metal oxide cells discharged in parallel to power an implantable medical device is described. The first cell powers the medical device in both a...
6007479 Heart assist system and method  
A cardiac assist device includes a cannula with intake and outflow valve in the distal end portion is positioned in a bloodstream. A diaphragm in the proximal portion of the cannula, powered by...
6007478 Cannula having constant wall thickness with increasing distal flexibility and method of making  
A cannula for use as for example on the inflow end of an implantable intravascular heart pump. The stiffness of the cannula is differentiated along its length, wherein its proximal end is stiffer...
6001056 Smooth ventricular assist device conduit  
A smooth-walled non-crimped inflow conduit for an implantable ventricular assist system. The conduit has an internally smooth lumen surface for enhanced washing of the conduit under irregular blood...
5984960 Rotary torque to axial force energy conversion apparatus  
A rotary torque-to-axial force energy conversion apparatus employs a rotatable member, a translatable member, and a magnetic coupling therebetween. The magnetic coupling converts a rotary torque on...
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...
5980448 Single chamber blood pump  
A blood pump apparatus can include a pump housing having a drive chamber containing a drive mechanism. A cupped member can be connected to the housing and the drive mechanism can include a motor...
5971910 Method and apparatus for assisting a heart to pump blood by applying substantially uniform pressure to the ventricles  
An apparatus and method for assisting a heart to pump blood includes a housing that defines an internal chamber for receiving a heart. The housing has a first opening to supply fluid to the...
5961440 Heart wall tension reduction apparatus and method  
An apparatus for treatment of a failing heart by reducing the wall tension therein. In one embodiment, the apparatus includes a tension member for drawing at least two walls of a heart chamber...
5947892 Rotary blood pump  
A blood pump that comprises a pump housing having a blood flow path therethrough, a blood inlet, and a blood outlet; a stator mounted to the pump housing, the stator having a stator field winding...
Matches 251 - 300 out of 598 < 1 2 3 4 5 6 7 8 9 10 11 12 >