Electrohydraulic energy converter for cardiac assist devices and

Details Electrohydraulic energy converter for cardiac assist devices and Electrohydraulic energy converter for cardiac assist devices and

1991-06-25

1994-09-13

Cohen, Lee S.

Surgery

Cardiac augmentation

623 3, A61N 1362

Patent

active

053464583

ABSTRACT:
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 alternating pressure, a centrifugal pump driven by an electric motor pumps a hydraulic fluid which acts on the diaphragm of a blood pump. The alternating flow of the hydraulic transmitting fluid is generated by an axial shift of the impeller of the centrifugal pump.

REFERENCES:
patent: 4173796 (1979-11-01), Jarvik
patent: 4382199 (1983-05-01), Isaacson
patent: 4453537 (1984-06-01), Spitzer
patent: 4888011 (1989-12-01), Kung et al.
patent: 5006104 (1991-04-01), Smith et al.
patent: 5041132 (1991-08-01), Miyata
G. Geisselbrecht et al., "An Implantable Driving System for Left Ventricular Assist Blood Pumps", Biomedizinische Technik, Bd. 19, No. 6 1974, Berlin, pp. 217-224.

Affiliated with

Also associated with

Rating

Electrohydraulic energy converter for cardiac assist devices and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrohydraulic energy converter for cardiac assist devices and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrohydraulic energy converter for cardiac assist devices and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1117038