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:
Feb. 28, 2012
Filed:
Sep. 01, 2006
Tadahiko Shinshi, Kanagawa, JP;
Akira Shimokohbe, Kanagawa, JP;
Junichi Asama, Kanagawa, JP;
Chikara Hara, Kanagawa, JP;
Wataru Hijikata, Kanagawa, JP;
Setsuo Takatani, Tokyo, JP;
Hideo Hoshi, Tokyo, JP;
Tadahiko Shinshi, Kanagawa, JP;
Akira Shimokohbe, Kanagawa, JP;
Junichi Asama, Kanagawa, JP;
Chikara Hara, Kanagawa, JP;
Wataru Hijikata, Kanagawa, JP;
Setsuo Takatani, Tokyo, JP;
Hideo Hoshi, Tokyo, JP;
Tokyo Institute of Technology, Tokyo, JP;
Tokyo Medical and Dental University, Tokyo, JP;
Abstract
A disposable centrifugal blood pump with magnetic coupling provides a centrifugal blood pump with magnetic coupling which is simple in structure of disposalable parts with low cost. Therefore, a housing as the disposable part includes a rotor having pole faces extending on the outer-peripheral surface and projecting inward from the inner-peripheral surface and an impeller attached to the rotor, and a stator as a reusable part includes three or more electromagnets for electromagnetic coupling for forming a magnetic coupling between the stator and the rotor, a torque transmission disk formed by sandwiching a ring-shaped permanent magnet between two upper and lower ring members and having pole faces corresponding to the pole faces projecting from the inner-peripheral surface of the rotor formed to project for generating a magnetic coupling between stator and rotor, a motor for rotating the torque transmission disk, and a displacement gauge for measuring displacement of the rotor.