1
Ronald K Grooters: External cardiac assist device. Zarley McKee Thomte Voorhees & Sease, July 21, 1992: US05131905 (296 worldwide citation)

An external cardiac assistance device is provided for augmenting cardiac contractions. The device includes a flexible, non-distensible shell adapted to be positioned over the base of the heart. A distensible membrane is mounted within the shell to define an inflatable space so that the device can be ...


2
Ray C Chiu: Cardiac assist method and apparatus. McGill University, Wolf Greenfield & Sacks, July 4, 1995: US05429584 (165 worldwide citation)

A copulsation and counterpulsation cardiac assist device, wherein the copulsation means includes an extra ventricular cup having and expansible envelope for compressing the heart during systole, and the counterpulsation means comprises a peri-aortic jacket including a fluid expansible balloon for co ...


3
Thomas H Foster, Patrick R Connelly: MRI-compatible implantable device. Biophan Technologies, Peter J Mikesell, Howard J Greenwald, August 2, 2005: US06925328 (155 worldwide citation)

A cardiac assist device containing a device for connecting the cardiac assist device to a heart, for furnishing electrical impulses from the cardiac assist device to the heart, for ceasing the furnishing of electrical impulses to the heart, for receiving pulsed radio frequency fields, for transmitti ...


4
Manfred Asrican: Cardiac assist device. Charles E Temko, March 11, 1980: US04192293 (121 worldwide citation)

A cardiac assist device which operates by cyclically exerting pressure through an implanted inflatable sheath, which surrounds the myocardium. The sheath is rigid and encloses a bladder or plurality of bladders into which a fluid, either in the form of an inert gas or a liquid is pulsed, with a time ...


5
Gene Voss: Cardiac assist device and method. David G Henry, August 29, 1989: US04861330 (115 worldwide citation)

A device and method for assisting the pumping action of a failed heart. The device comprises an inelastic balloon, preferably conical in shape, connected to a catheter and pump. The balloon is percutaneously fed into a major blood vessel and then guided to a ventricle of the heart. When placed in th ...


6
Hans Hinrich Sievers, Wolfgang Kloess, Wolfgang Daum: Cardiac assist device. Cardiotools Herzchirurgietechnik, Merchant Gould Smith Edell Welter & Schimdt P A, August 24, 1999: US05941813 (107 worldwide citation)

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 inlet out through the outlet. The pump is connectable between the patient's left atrium and the aorta so as ...


7
William B Andrulitis: Medical connector. Abiomed, Nutter McClennen & Fish, November 20, 2001: US06319231 (81 worldwide citation)

A medical connector for connecting a cardiac assist device to vascular tissue includes a base connector adapted to be attached to the cardiac assist device and a vascular tissue connector adapted to be attached to the vascular tissue. A retaining ring holds the base connector to the vascular tissue ...


8
Klaus Affeld: Electrohydraulic energy converter for cardiac assist devices and artificial hearts. Robert J Koch, September 13, 1994: US05346458 (75 worldwide citation)

An apparatus for converting electric energy into pumping energy is disclosed. The apparatus is utilized to drive a cardiac assist device or an artificial heart. These devices are volume displacement blood pumps which require an alternating force or pressure for their pumping action. To generate this ...


9
Stephen G Kovacs: Direct mechanical bi-ventricular cardiac assist device. Duke University, Nixon & Vanderhye P C, May 12, 1998: US05749839 (69 worldwide citation)

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 of the patient's heart. The pressure and timing of each diaphragm can be independently varied to maximi ...


10
Dan Rottenberg, Dudu Haimovich: Heart assist system and method. H D S Systems, Fenster & Company Patent Attorneys, December 28, 1999: US06007479 (67 worldwide citation)

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 external pressure-producing mechanism, forms a reservoir to exert pressure on the cannula volume at the va ...