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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.:

US 5263978 B1

PDFFull Text
Date of Patent:
Nov. 23, 1993

Filed:

Sep. 09, 1992

Blood pump for pulsating operation

Applicant:
Inventors:

Ralf Kaufmann, Aachen, DE;

Helmut Reul, Dueren, DE;

Guenter Rau, Aachen, DE;

Ralf Bitdinger, Grenoble, FR;

Assignee:

Forschungsgesellschaft fur Biomedizinische Technik e.V., Aachen, DE;

Attorney:

Diller, Ramik & Wight

Primary Examiner:

David Isabella

Assistant Examiner:

D Willse

Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
623-3 ; 417415 ; 417419 ;
Abstract

A blood pump housing (43) accommodates at least one piston (21a,21b) driven by a coupling point (19a,19b) on a triangular closed hypocycloidal path (Z.sub.a, Z.sub.b). The piston (21a,21b) is provided for periodically pressing and releasing a blood chamber (37a,37b). One of the corners of the triangular closed hypocycloidal path (Z.sub.a,Z.sub.b) is directed towards the piston (21a,21b), so that the piston movements substantially consist of three periods, i.e. an advance stroke period, a return stroke period and a stationary stroke period.

Find Patent Forward Citations

Kaufmann, Ralf. (1993). Blood pump for pulsating operation (U.S. Patent No. 5263978). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5263978

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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