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Catheter sensor and memory unit

  • US 4,858,615 A
  • Filed: 07/29/1988
  • Issued: 08/22/1989
  • Est. Priority Date: 11/10/1981
  • Status: Expired due to Fees
First Claim
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1. A living body parameter sensing system including:

  • a catheter sensor and memory unit; and

    ,information and signal processing circuitry;

    said catheter sensor and memory unit including;

    a catheter,a non-ideal sensor mounted in said catheter,a connector assembly including a connector housing,said catheter being connected to said connector housing,connectors mounted in said connector housing,conductors in said catheter connected between said sensor and said connectors mounted in said connector housing, andmemory means for storing departure information data including offset and amplification data relative to the departure of non-ideal sensor output signals from ideal sensor output signals,said memory means being mounted in said connector housing and being connected to said connectors such that said sensor and said memory means are permanently joined together by being mounted together in said catheter sensor and memory unit and by being connected to said connectors;

    said information and signal processing circuitry including;

    means coupled to said memory means via said connector for retrieving the departure information data including offset data and amplification data relative to first sensor output signals from said memory means,means coupled to said sensor via said connectors for retrieving first sensor output signals from said sensor relative to a first living body parameter,means for offsetting said first sensor output signals retrieved from said sensor relative to the offset data for said first sensor output signals retrieved from said memory means,means for amplifying said retrieved first sensor output signals,means for adjusting the gain of said amplifying means relative to said amplification data for said first sensor output signals retrieved from said memory means, andmeans coupled to said amplifying means for providing a first sensor output signal standardized for amplitude and offset.

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