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Pressure reference assemblies for body fluid drainage systems and associated methods

  • US 10,413,710 B2
  • Filed: 01/16/2015
  • Issued: 09/17/2019
  • Est. Priority Date: 01/16/2014
  • Status: Active Grant
First Claim
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1. A pressure reference assembly for a body fluid drainage system, the pressure reference assembly comprising:

  • a first reference line having a first portion and a second portion opposite the first portion, wherein the first portion of the first reference line has a first flexible region configured to sense pressure;

    a second reference line having a first portion and a second portion opposite the first portion, wherein the first portion of the second reference line has a second flexible region configured to be in pressure communication with atmospheric pressure, and wherein the first and second flexible regions are configured to be positioned at a first location and the second portions of the first and second reference lines are configured to be positioned at a second location spaced apart from the first location; and

    a pressure sensor assembly at the second portions of the first and second reference lines, wherein the pressure sensor assembly is configured to measure pressure and/or force at the second portions of the first and second reference lines.

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