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. 07, 2025
Filed:
Oct. 28, 2020
Medtronic PS Medical, Inc., Minneapolis, MN (US);
Yi Cai, Shanghai, CN;
Steve Han, Irvine, CA (US);
Yong Feng, Shanghai, CN;
Zhihua Luo, Shanghai, CN;
Jeff William Bertrand, Irvine, CA (US);
Medtronic PS Medical, Inc., Goleta, CA (US);
Abstract
A valve assembly () configured to maintain fluid flow therethrough at a constant flow rate. The valve assembly () including a flexible flow control member () defining an inner fluid chamber () within the flexible flow control member () and an inlet opening () to the inner fluid chamber (). An outer fluid chamber () is defined between the flexible flow control member () and an inner surface () of a valve housing (). The flexible flow control member () is configured to flex inward and shrink the inner fluid chamber () in response to a pressure decrease in the inner fluid chamber () relative to the outer fluid chamber () resulting from an increase in an inlet flow rate to maintain an outlet flow rate from the valve assembly () at the constant flow rate.