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Internal apparatus for continuous electrical and oximetric intrapartum monitoring of the fetus

  • US 5,419,322 A
  • Filed: 07/22/1993
  • Issued: 05/30/1995
  • Est. Priority Date: 07/22/1993
  • Status: Expired due to Fees
First Claim
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1. An internal apparatus for continuous electrical and oximetric intrapartum fetal monitoring, comprising:

  • a base assembly having a bottom and containing a photodetector situated on said bottom of the base assembly;

    a collar surrounding the bottom of the base assembly;

    a single spiral probe extending through the photodetector and from the base assembly, and being surrounded by said collar, which probe is adapted to penetrate a fetal scalp;

    said probe containing an optical fiber having an end which functions as a light source which directs an emerging cone of light surrounded by said collar and toward said photodetector, said spiral probe having a closed end and a side opening directed towards said photodetector, and said light source being located in said side opening in said spiral probe;

    means for connecting said photodetector to an external monitor; and

    means for connecting said spiral probe to said external monitor;

    whereby said internal apparatus measures the arterial hemoglobin oxygen saturation and the fetal heart rate and EKG activity of the fetus.

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