Three-way stopcock, and liquid transfusion circuit or blood transfusion circuit either using the three-way stopcock
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United States of America Patent
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Apr 13, 2010
Issued Date -
N/A
app pub date -
Nov 11, 2002
filing date -
Nov 14, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
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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