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Title:
FLOW REGULATING SHUNT VALVE
Document Type and Number:
WIPO Patent Application WO/2022/087900
Kind Code:
A1
Abstract:
A valve assembly (10) configured to maintain fluid flow therethrough at a constant flow rate. The valve assembly (10) including a flexible flow control member (50) defining an inner fluid chamber (90) within the flexible flow control member (50) and an inlet opening (56) to the inner fluid chamber (90). An outer fluid chamber (92) is defined between the flexible flow control member (50) and an inner surface (74) of a valve housing (20). The flexible flow control member (50) is configured to flex inward and shrink the inner fluid chamber (90) in response to a pressure decrease in the inner fluid chamber (90) relative to the outer fluid chamber (92) resulting from an increase in an inlet flow rate to maintain an outlet flow rate from the valve assembly (10) at the constant flow rate.

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Inventors:
CAI YI (CN)
HAN STEVE (US)
FENG YONG (CN)
LUO ZHIHUA (CN)
BERTRAND JEFF (US)
Application Number:
PCT/CN2020/124438
Publication Date:
May 05, 2022
Filing Date:
October 28, 2020
Export Citation:
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Assignee:
MEDTRONIC XOMED INC (US)
CAI YI (CN)
International Classes:
A61M39/22; A61M27/00; A61M39/24; F16K37/00
Foreign References:
EP0528977B11995-11-02
EP0276356B11991-04-17
US20040082900A12004-04-29
CN107854773A2018-03-30
CN107854771A2018-03-30
US5304114A1994-04-19
US4552553A1985-11-12
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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