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Obstruction detector for a fluid flow line of a medical laboratory instrument

  • US 5,814,275 A
  • Filed: 12/12/1996
  • Issued: 09/29/1998
  • Est. Priority Date: 02/15/1995
  • Status: Expired due to Fees
First Claim
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1. An apparatus for detecting obstructions of a flow line, comprising:

  • a flow line capable of allowing fluid to flow therethrough;

    a pressure detector for detecting changes in pressure within said flow line, said pressure detector disposed on said flow line or sufficiently proximate to said flow line so as to be compressed when said flow line expands; and

    a rigid barrier disposed proximate to said pressure detector on a side of said pressure detector opposite said flow line, said rigid barrier being sufficiently rigid so that when said flow line and pressure detector expand, said rigid barrier does not expand and said pressure detector is compressed.

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