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. 05, 2016
Filed:
Sep. 08, 2011
Takayoshi Ozaki, Iwata, JP;
Hiroyuki Yamada, Iwata, JP;
Ken Sugiura, Iwata, JP;
Thoratec Corporation, Pleasanton, CA (US);
Abstract
A centrifugal blood pump apparatus includes a plurality of permanent magnets () in an impeller () in a blood chamber (), a plurality of coils () in a motor chamber (), and a magnetic element () in each of the coils (). The magnetic elements () are made shorter than the coils () to lower attractive force between the magnetic elements () and the permanent magnets () in the impeller (), to set a large gap between the magnetic elements () and the permanent magnets (). As a result, axial attractive force and negative rigidity can be lowered while required torque is satisfied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile