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Pressure isolation mechanisms, method of use thereof and fluid delivery systems including pressure isolation mechanisms

  • US 9,833,559 B2
  • Filed: 10/03/2014
  • Issued: 12/05/2017
  • Est. Priority Date: 10/18/2000
  • Status: Expired due to Term
First Claim
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1. A pressure isolation mechanism comprising:

  • a lumen;

    an isolation port in fluid connection with the lumen;

    a valve having a first state and a second state, the first state occurring when the lumen and the isolation port are connected, the second state occurring when the lumen and the isolation port are disconnected, wherein the lumen is open for flow of fluid therethrough in the first state and in the second state, and wherein the valve is normally in the first state and is switchable to the second state when fluid pressure in the lumen reaches a predetermined level; and

    a pressure transducer for obtaining blood pressure readings in a patient in fluid communication with the isolation port of the pressure isolation mechanism.

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