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Pressure detector for fluid circuits

  • US 7,337,674 B2
  • Filed: 06/29/2005
  • Issued: 03/04/2008
  • Est. Priority Date: 06/29/2005
  • Status: Active Grant
First Claim
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1. A pressure measurement device, comprising:

  • a fluid circuit for conducting a fluid in support of renal replacement therapy;

    said fluid circuit having a tubular part with a sensor portion;

    a mechanism adjacent said sensor portion configured to detecting pressure from said sensor portion responsive to changes in pressure of a fluid within an interior thereof;

    said sensor portion having a non-circular cross-section, at least said sensor portion being configured such that it suffers substantially no non-elastic tensile strain in a wall thereof as a result of a change in pressure within whereby hysteresis in a signal from said sensor element is avoided.

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