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Class 623/3.16 - Having flexible diaphragm or chamber


Subclass of Class 623 - Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
Definition: Subject matter wherein the artificial heart includes a
No. of patents: 22
Last issue date: 12/14/2010


NumberTitleIssue Date
7850729Deforming jacket for a heart actuation device
The invention consists of a cushioned active cyclically deforming cushion or jacket (39) that surrounds the outer or epicardial surface of at least one chamber (2, 3, 4, 5) of the natural heart, including its base, configured so that internal component...
12/14/2010
7172551Cyclical pressure coronary assist pump
An intravascular pump, which may be a left ventricle assist device, comprising a wall defining a pumping chamber, the wall support by struts, the struts attached to or part of an actuation system to move the wall from an expanded position to a contracted position an...
02/06/2007
7144365Implantable heart assist system and method of applying same
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and method of using same. One embodiment of the extracardiac system comprises a pump ...
12/05/2006
7125376Implantable heart assist system and method of applying same
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system co...
10/24/2006
6988982Heart wall actuation system for the natural heart with shape limiting elements
An actuation system for assisting the operation of the natural heart includes an actuator element adapted to be positioned proximate a portion of a heart wall. The actuator element is operable for acting on the heart wall portion to effect a change in the shape of t...
01/24/2006
6949065Left ventricular assist system
A fully implantable left ventricular assist system comprising a pumping means connectable via adapter elements to the ventricle includes two compressible chambers in the form of sacs (5, 5′) and a compressing means (4) to alternatingly fill and disch...
09/27/2005
6863648Balloon pump system having a pressure reservoir muffler
A vacuum reservoir, for use with an intra-aortic balloon pump or other system, containing a muffling means having a honeycomb-like cell structure or other flow straightening structure. ...
03/08/2005
6846296Apparatus and method for detachably securing a device to a natural heart
Methods and apparatus are disclosed for attaching cardiac devices onto a natural heart by employing arrays of gripping elements, such as hooks or barbs. The gripping elements are designed to penetrate and lodge themselves in the epicardial tissue in order to secure ...
01/25/2005
6770024Implantable counterpulsation cardiac assist device
A hollow tubular element is inserted in the descending aorta. The caudad end contains a pressure sensitive passive or preferably, hydraulically or electrically activated, unidirectional valve. A flexible diaphragm situated in a rigid shell affixed over an opening in...
08/03/2004
6669726Orthotopic total artificial heart
An orthotopic total artificial heart for replacing the human heart comprising a new design of two assembled blood chambers with an original layout between themselves and between their inlet and outlet ports. Such design enables a significantly better spac...
12/30/2003
6547753Pulsatile flow generation in heart-lung machines
Pulsatile blood flow in a heart-lung machine is accomplished by pumping blood into a bladder at a constant rate, and cyclically emptying the bladder into aortic line of the heart-lung machine either by means of the bladder's own elasticity or by a mechani...
04/15/2003
6488706Device for plugging an opening such as in a wall of a hollow or tubular organ
An implant for occluding a passage in a circulatory system is provided. The implant in one form includes a plurality of thin wire-like members each having a proximal and a distal end and a first holder to which the distal ends of the members are attached....
12/03/2002
6468200Segmented peristaltic intra-aortic balloon pump
An intra-aortic blood pump (IABP) includes a multiple-chamber balloon disposed at the distal portion of a catheter. The chambers are inflated sequentially beginning with the most distal, i.e., the chamber closest to the aortic root. This advances the bloo...
10/22/2002
6344022Right 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 kinked and obstructed. Then flow across the lungs will decre...
02/05/2002
6102845Ventricular 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 conduits are constructed and configured to minimize the number o...
08/15/2000
5971910Method 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 internal chamber of the housing. Uniform pressure is applied to a...
10/26/1999
4902273Heart assist device
Improved heart assist devices are disclosed. An improved heart assist device includes a catheter having a first lumen and a second lumen. An inflatable intraventricular balloon is located at the distal end of the catheter. The interior of the intraventric...
02/20/1990
4813965Brazed porous coating and improved method of joining metal with silver material
Pieces of metal are joined with silver material in a two-stage heating process. In one application, a brazed porous coating of metal particles on a metal substrate of a device is formed by interposing a silver material between the substrate and the partic...
03/21/1989
4581029Blood pump
The present invention relates to an artificial heart which comprises a housing, a brim forming a cover of the said housing, a blood introduction pipe and a blood discharge pipe which are incorporated as one piece with the said brim, a blood introduction v...
04/08/1986
4573997Right ventricular assist device
A right ventricular assist device for assisting the circulation of the blood includes a smooth segmented polyurethane sac having a single valveless passageway to provide a single inlet and outlet. A rigid ellipsoidal shell surrounds the sac and has a firs...
03/04/1986
4468177Diaphragm pump arrangement in which alternately expanded and contracted chambers are used independently
A pump has a housing that is divided into two chambers by an element that is driven in a push-pull manner so that the volumes of each of the two chambers are alternately enlarged and reduced. Both chambers are in the path of fluid through the pump. The ch...
08/28/1984
4458366Artificial implantable blood pump
Implantable artificial blood pumps are described. The blood-contacting surfaces have pores therein which communicate with a subsurface of interconnected pores. This structure induces tissue formation thereon and avoidance of the incidence of thromboemboli...
07/10/1984
 
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