Cassette for use in a medication delivery flow sensor assembly and method of making the same
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United States of America Patent
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Oct 26, 2010
Issued Date -
N/A
app pub date -
May 20, 2009
filing date -
Sep 2, 2008
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A disposable assembly for use with a sensor assembly comprises a body, a flow restricting element, and a fluid pressure membrane. The body has a lid portion and a base portion. The body defines a fluid flow passage that forms an inlet and an outlet. The flow restricting element is positioned in the fluid flow passage between the inlet and the outlet. The membrane is located between the lid and base portions along the fluid flow passage. A reinforcing structure, such as a ring or a rigid disk, is positioned between the fluid pressure membrane and the lid portion to provide increased resistance to pressure in the fluid flow passage. The ring or disk can be a separate component or formed on the membrane. The membrane thickness adjacent to sensor access openings in the lid portion can be increased for pressure resistance, too.
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