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. 14, 2016
Filed:
Jan. 09, 2013
Thoratec Corporation, Pleasanton, CA (US);
Hiroyuki Yamada, Shizuoka, JP;
Ken Sugiura, Shizuoka, JP;
Thoratec Corporation, Pleasanton, CA (US);
Abstract
This centrifugal blood pump device comprises an impeller which is provided within a blood chamber, a permanent magnet which is provided to one surface of the impeller, a permanent magnet which is provided to the inner wall of the blood chamber, permanent magnets which are provided to the other surface of the impeller, and multiple sets of magnetic bodies and coils, which are disposed within a motor chamber and which rotationally drive the impeller with a partition wall located between the impeller and the sets of magnetic bodies and coils. The magnetic bodies are formed in a solid cylindrical shape. The configuration enables the impeller to be smoothly activated for rotation by controlling a coil current.