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:
Oct. 18, 2022
Filed:
Sep. 18, 2017
Rocketheart Technology Co. Ltd, Tianjin, CN;
Jian Xu, Tianjin, CN;
Qinglin Fan, Tianjin, CN;
Wenjin Wu, Tianjin, CN;
Xuman Zhang, Tianjin, CN;
Zhifu Han, Tianjin, CN;
Guogang Song, Tianjin, CN;
Ying Dai, Tianjin, CN;
RocketHeart Technology Co. Ltd, Tianjin, CN;
Abstract
Disclosed is a blood pump device. The blood pump device includes: a housing having an overflow passage, and an inlet and an outlet respectively connected to the overflow passage; a rotor assembly rotatably disposed in the overflow passage; a coil disposed in a side wall of the housing; a first permanent magnet portion disposed inside the rotor assembly; a second permanent magnet portion disposed in the side wall of the housing, the first permanent magnet portion and the second permanent magnet portion forming a radial permanent magnet bearing; a piece of electric motor magnetic steel disposed inside a rotor of the rotor assembly; and a magnetic protection portion disposed at a periphery of the coil, wherein the magnetic protection portion and the electric motor magnetic steel act together to provide an axial pre-tightening force for the rotor assembly.