Invention Grant
- Patent Title: Three-way stopcock, and liquid transfusion circuit or blood transfusion circuit either using the three-way stopcock
- Patent Title (中): 三通旋塞阀，输液回路或输血回路均采用三通旋塞阀
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Application No.: US10494954Application Date: 2002-11-11
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Publication No.: US07695445B2Publication Date: 2010-04-13
- Inventor: Takehiko Yuki
- Applicant: Takehiko Yuki
- Applicant Address: JP Hiroshima
- Assignee: JMS Co., Ltd.
- Current Assignee: JMS Co., Ltd.
- Current Assignee Address: JP Hiroshima
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2001-348142 20011114
- International Application: PCT/JP02/11715 WO 20021111
- International Announcement: WO03/041788 WO 20030522
- Main IPC: A61M37/00
- IPC: A61M37/00 ; A61M5/178 ; A61M5/315 ; A01G25/16 ; F16K5/00
Abstract:
A three-way stopcock that can be opened/closed in the same manner as conventional operation methods and can reduce stagnated portions of fluid in a fluid flow passage. Out of branch openings, a first branch opening and a second branch opening are arranged on a straight line, and a third branch opening is directed perpendicularly to the line connecting the first and second branch openings. Provided at a flow passage switch portion are a first flow-passage opening and a second flow-passage opening that are arranged on a straight line and a third flow-passage opening that is directed perpendicularly to the line connecting the first and second bran openings.
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