The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 1997
Filed:
Mar. 06, 1995
Applicant:
Inventors:
Robert T Kung, Andover, MA (US);
Gerard Champsaur, Lyons, FR;
Assignee:
Abiomed R & D, Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
600 16 ;
Abstract
A circulatory apparatus for assisting the movement of fluids with a pulsatile flow. The circulatory apparatus includes a restrictable tube, an element for passively restricting a segment of the tube, two or more elements for selectively restricting segments of the tube, and a controller for directing selective restricting elements. The controller directs restricting elements in a manner that provides a cyclical pulsatile pattern of restriction along the length of the tube.