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:
Jun. 12, 2001
Filed:
Jan. 28, 1999
William Bedingham, Woodbury, MN (US);
Bernard A. Gonzalez, St. Paul, MN (US);
Gustavo H. Castro, Cottage Grove, MN (US);
Terumo Cardiovascular Systems Corporation, Somerset, NJ (US);
Abstract
A blood pump comprising a pump mechanism having an outer sleeve, an inner sleeve, and an impeller. The pump mechanism is movable between a closed and preferably retracted position wherein one or both of an inlet port and an outlet port are sealed by the inner and/or outer sleeve for inserting the pump mechanism into the heart, and an open and preferably extended position wherein the inlet and outlet ports are open to allow the impeller to pump blood through the ports. The pump mechanism preferably retracts so that it has less length and is more readily maneuvered when it is in its closed position. Also disclosed are a bearing portion received within a cap of the impeller with a flow of lubricating liquid between the bearing portion and cap, and a method of using the pump.