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Optical transcutaneous bilirubin detector

  • US 5,259,382 A
  • Filed: 03/04/1991
  • Issued: 11/09/1993
  • Est. Priority Date: 03/04/1991
  • Status: Expired due to Term
First Claim
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1. A device for measuring bilirubin content of skin, said device comprising:

  • a handle assembly;

    a source of light having a first portion containing light of wavelengths absorbed by bilirubin and a second portion containing light of wavelengths not absorbable by bilirubin;

    means carried by said handle assembly and in optical communication with said source of light for directing said light onto said skin when pressed against said skin, said directing means receiving light reflected by said skin;

    means in optical communication with said directing means for receiving said reflected light for determining said amount of bilirubin in said skin by comparing a measured amount of said first portion of said reflected light to a measured amount of said second portion of said reflected light;

    a button slidably carried within said handle assembly, said button having a recessed position and a protruding position; and

    means for biasing said button in said recessed position,said button moving to said protruding position from said recessed position as said device is pressed against said skin, said button reaching said protruding position when sufficient pressure has been applied to said skin with said device.

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