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Medical pressure multiplexing system

  • US 5,097,840 A
  • Filed: 06/21/1990
  • Issued: 03/24/1992
  • Est. Priority Date: 10/15/1987
  • Status: Expired due to Fees
First Claim
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1. A pressure multiplexing system for selectively communicating at least a first fluid pressure and a second fluid pressure to a transducer means for detecting said pressures and to an infusion means for infusing fluids, the first and second fluid pressures being communicated from within a patient'"'"'s body by a catheter, and the pressure multiplexing system comprising:

  • a valve body comprising a central bore therein;

    rotor means disposed within said bore and rotatable between a first and a second monitoring position;

    first and second port means for simultaneously introducing said first and second fluid pressures to said rotor means;

    transducer port means for providing fluid communication between said rotor means and said transducer means;

    infusion port means for providing fluid communication between said rotor means and said infusion means;

    first interconnecting means associated with said rotor means for interconnecting one of said first and second port means to said transducer port means and for simultaneously interconnecting the other of said first and second port means to said infusion port means when said rotor means is in said first position; and

    second interconnecting means associated with said rotor means for interconnecting said other of said first and second port means to said transducer port means when said rotor means is in said second position.

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