logo

For the Inventor, By the Inventor

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.:

US 11686318 B1

PDFFull Text
Date of Patent:
Jun. 27, 2023

Filed:

Jan. 23, 2020

Centrifugal blood pump device

Applicant:

Terumo Kabushiki Kaisha, Tokyo, JP;

Inventor:

Takehisa Mori, Kanagawa, JP;

Assignee:

TERUMO KABUSHIKI KAISHA, Tokyo, JP;

Attorney:

MacMillan, Sobanski & Todd, LLC

Primary Examiner:

Peter J Bertheaud

Int. Cl.
CPC ...
F04D 29/048 (2006.01); F04D 1/00 (2006.01); F04D 13/02 (2006.01); F04D 29/42 (2006.01); F16C 32/04 (2006.01); H02K 49/10 (2006.01); A61M 60/419 (2021.01); A61M 60/82 (2021.01); A61M 60/232 (2021.01); A61M 60/81 (2021.01); A61M 60/422 (2021.01); A61M 60/824 (2021.01); A61M 60/148 (2021.01); F04D 13/06 (2006.01); F04D 29/047 (2006.01); F04D 29/62 (2006.01);
U.S. Cl.
CPC ...
F04D 29/048 (2013.01); A61M 60/148 (2021.01); A61M 60/232 (2021.01); A61M 60/419 (2021.01); A61M 60/422 (2021.01); A61M 60/81 (2021.01); A61M 60/82 (2021.01); A61M 60/824 (2021.01); F04D 1/00 (2013.01); F04D 13/02 (2013.01); F04D 13/024 (2013.01); F04D 13/027 (2013.01); F04D 13/0666 (2013.01); F04D 29/047 (2013.01); F04D 29/426 (2013.01); F04D 29/628 (2013.01); F16C 32/0474 (2013.01); H02K 49/106 (2013.01);
Abstract

A pump device () includes a housing () including a blood inflow port () through which blood flows in, and having a fixed-side repulsive magnet () disposed in an annular manner; and an impeller () that is rotatably housed inside the housing (), and having a movable-side repulsive magnet () disposed in an annular manner. The fixed-side repulsive magnet () is disposed in a position offset toward the blood inflow port () side relative to the movable-side repulsive magnet (). In the fixed-side repulsive magnet () and the movable-side repulsive magnet (), a fixed-side repulsive surface () and a movable-side repulsive surface () adjacent to each other have the same polarity.

Find Patent Forward Citations

Loading…