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Implantable blood oxygen sensor and method of use

  • US 4,815,469 A
  • Filed: 03/10/1988
  • Issued: 03/28/1989
  • Est. Priority Date: 10/08/1987
  • Status: Expired due to Term
First Claim
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1. A body-implantable sensor and lead comprising:

  • an implantable stimulating lead having a connector at one end thereof and electrode means at the other end thereof, the electrode means comprising means for electrically contacting body tissue when the lead is implanted in a body, and the connector comprising a means for interfacing the lead, both electrically and physically, with a desired stimulating device;

    a first insulated conductor having a distal end coupled to the electrode means and a proximal end couplled to the connector;

    sensor means forming an integral part of the lead for quantitatively sensing a specified characteristic of a body fluid proximal the sensor means, the sensor means including means responsive to a drive signal for generating an output signal that varies as a function of the specified body fluid characteristic;

    means for transmitting the drive signal and the output signal between the sensor means and the connector; and

    means for hermetically sealing said sensor means.

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