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Pulse/oxygen sensor and method of making

  • US 5,094,240 A
  • Filed: 03/16/1989
  • Issued: 03/10/1992
  • Est. Priority Date: 03/18/1988
  • Status: Expired due to Fees
First Claim
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1. A sensor for noninvasive measurement of at least one of a patent'"'"'s pulse rate and blood constituents, comprising:

  • a conductor assembly having a flexible conductor plate;

    a light source transmitter enclosed in a transmitter housing, said light source transmitter and said transmitter housing being fixedly mounted on said flexible conductor plate, said transmitter housing having a thin, light-permeable layer directly adjacent a light source of said transmitter;

    a receiver sensitive to light emitted from said transmitter, said receiver being enclosed in a receiver housing having a thin light-permeable layer directly adjacent a light detecting surface of said receiver, said receiver and said receiver housing being fixedly mounted on said flexible conductor plate; and

    a sensor housing of a light-impermeable material enclosing said conductor plate and covering completely said conductor plate and partially covering said transmitter and receiver housings to define first and second optical windows at said thin light-permeable layers respectively, said sensor housing being attached tightly to said transmitter housing and said receiver housing for sealing said transmitter and receiver housings to said sensor housing to prevent infiltration of fluids therebetween;

    whereby said optical windows remain directly exposed to the patient'"'"'s skin.

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