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6428464 |
Implantable heart assist system
An extracardiac pumping for supplementing the circulation of blood through a patient without any component thereof being connected to the patient's heart, and method of using same. The extracardiac...
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6408205 |
System for delivering mechanical waves
There is provided an implanted system and method for delivering subsonic mechanical waves to one or more selected patient areas, said areas including the patient's heart and/or lungs. The...
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6398714 |
Cardiac assist catheter pump and catheter and fitting for use therein
A cardiac assist catheter pump includes a displacement structure and a catheter. The catheter has an inlet in its distal end portion and an outlet spaced from the distal end portion. The...
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6398715 |
Apparatus for assisting systolic and diastolic cardiac function
The present invention pertains to an apparatus for assisting a patient's heart operation. The apparatus comprises a mechanism for expanding and collapsing a right ventricle free wall of a heart of...
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6397843 |
Electrical and manual pressing device of automated air blowing for first-aid cardiopulmonary resuscitation
An electrical and manual pressing device of automatic air blowing for first-aid cardiopulmonary resuscitation comprises pressing unit, an air storage tank, a control chamber, air levels, and a...
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6387042 |
Apparatus aiding physiologic systolic and diastolic dynamics of cardiac cavities
Apparatus aiding physiologic systolic and diastolic dynamics of heart cavities designed to assist the systolic contraction of the heart ventricles, and to simultaneously or alternatively regulating...
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6375607 |
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...
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6361519 |
Mesh tip myocardial implant
A method and apparatus for performing coronary artery bypass surgery establishes a channel leading directly from a chamber of a heart into a coronary artery. The coronary artery bypass procedure...
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6354814 |
Device for conversion of a unidirectional rotational motion into reciprocating back and forth motion and pump device comprising same
The inventive device consists of a disk which can be rotated around a central axis, a wobble pin which is mounted in the disk so that can rotate around an axis which is arranged at an angle in...
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6350248 |
Expandable myocardial implant
A method and apparatus for performing coronary artery bypass surgery establishes a channel leading directly from a chamber of a heart into a coronary artery. The coronary artery bypass procedure...
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6346071 |
Inflow conduit assembly for a ventricular assist device
An inflow conduit assembly for conducting blood from a ventricle to a Ventricular Assistance Device (VAD) is provided. The assembly includes a rigid tube including an angled heart engaging end for...
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6344022 |
Right ventricular bypass devices and methods of their use during heart surgery
During coronary artery bypass grafting (CABG) surgery in cases when cardio-pulmonary bypass is not used, at times when the heart is manipulated or lifted the inflow to the right ventricle may be...
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6332863 |
Heart wall tension reduction kit
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...
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6309341 |
Method for constructing an organ of an animal by employing bands with electromagnetic actuators
An internal organ of a person is artificially contracted by a band implanted around the organ. The band has two ends which are coupled together by an electromagnetic actuator. When an electric...
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6296605 |
High-pressure drive system
A high pressure inflation system for driving an inflatable heart assistance device. The system includes a fluid source for supplying a fluid at a relatively high pressure and a compression tank...
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6290640 |
Uncoupled rotary linear pump
A fluid pump includes a piston mounted in a housing. A check valve is disposed in the piston for controlling fluid flow. A linear motor joins the piston and housing for axial oscillation of the...
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6290639 |
Conduit for a mechanical circulatory device
A conduit assembly is provided for attachment to a Mechanical Circulatory Device (MCD) having an orifice surrounded by an orifice rim and a blood bag for forming a blood chamber in the MCD. The...
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6280377 |
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...
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6264601 |
Implantable ventricular assist device
An implantable ventricular assist device (VAD) has a small size to provide full-implantable capabilities. The VAD has two variable-volume chambers and an actuator for expelling blood from the...
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6251061 |
Cardiac assist device using field controlled fluid
A cardiac assist device and method of use for assisting the function of a heart. The assist device includes a compressor positioned against the epicardial wall of the heart and a field generator...
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6245007 |
Blood pump
A blood pump comprising a pump mechanism having an outer sleeve, an inner sleeve, and an impeller. The pump mechanism is movable between a closed and preferably retracted position wherein one or...
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6241652 |
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...
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6238334 |
Method and apparatus for assisting a heart to pump blood
A ventricular cuff is designed to assist a heart to pump blood by applying uniform pressure to a majority portion of an exterior ventricular surface of the heart. A heart engaging structure is...
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6237398 |
System and method for monitoring pressure, flow and constriction parameters of plumbing and blood vessels
The present invention provides a system and method of quantifying flow, detecting a location of an obstruction and quantifying a degree of the obstruction in a pipe characterized in pulsatile flow....
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6221104 |
Anterior and interior segment cardiac 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...
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6206820 |
Device for supporting cardiac function having elastic filling chambers
A device for assisting the functioning of a heart has elastic filling chambers attached to an elastic cover which can be placed at least partially around the heart. The filling chambers can be...
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6201329 |
Pump having magnetic bearing for pumping blood and the like
In order to provide a blood pump bearing having a suitable stiffness, magnetic rings for a journal bearing are provided on each of the stationary portion and the rotor and disposed in magnetically...
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6190319 |
Self calibrating linear position sensor
A rotor is disposed coaxially in a tubular housing and spaced therefrom to define a gap for receiving a fluid. An ultrasonic transducer is mounted at one end of the housing in alignment with a...
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6176848 |
Intravascular blood pump
A blood pump having a motor housing and a pump housing which are rigidly connected to one another in an axially spaced relationship. Both housings are of substantially the same diameter and are...
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6169922 |
Defibrillating cardiac jacket with interwoven electrode grids
A device for treating cardiac disease of a heart includes a jacket of flexible material defining a volume between an open upper end and a lower end. The jacket is dimensioned for an apex of the...
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6168624 |
Apparatus and methods for revascularization and perfusion
The invention is practiced by introducing a catheter (10)into the left ventricle of the heart. Deployment of an intraventricular pump assembly (12) from the end of catheter (10) is carried out by...
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6165120 |
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...
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6162167 |
Blood pump device having a journal
A blood pump device which includes a blood pump having blood transport ports and cannulae connected to the ports. The blood pump device also includes a coating material covering the junction...
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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,...
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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...
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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...
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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...
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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...
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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, rotatably...
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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...
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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...
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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...
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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...
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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...
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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...
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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....
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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...
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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,...
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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...
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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...
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