Injection apparatus incorporating clamping and squeezing members for pumping liquid through flexible tubing
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United States of America Patent
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Apr 19, 2005
Grant Date -
Sep 12, 2002
app pub date -
Jan 25, 2002
filing date -
Jan 28, 2001
priority date (Note) -
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Abstract
A piston pump propels liquid through a lumen of a flexible tube segment. The pump includes a first tube clamping member, a first set of tube squeezing members, a second tube clamping member, a second set of tube squeezing members and a synchronizing arrangement for activating the members in a sequential order such that fluid in the tube is displaced in a downstream direction.
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