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Disposable pulse oximeter sensor

  • US 5,678,544 A
  • Filed: 08/15/1995
  • Issued: 10/21/1997
  • Est. Priority Date: 08/28/1991
  • Status: Expired due to Term
First Claim
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1. A non-invasive, electrooptical sensor for removable attachment to the skin of a patient comprising:

  • a first flexible substrate having first and second portions which are connected to each other;

    a light emitter mounted on one of said first and second portions of said first substrate;

    a light detector mounted on one of said first and second portions of said first substrate;

    a plurality of conductive lines deposited on said first substrate, at least one being connected to said light emitter and at least one being connected to said light detector, at least two of said conductive lines extending across a first surface of said first portion and a second surface of said second portion, said first and second surfaces facing each other, said light emitter and light detector facing the same direction;

    an insulating layer separating said first and second surfaces; and

    wherein at least one of said light emitter and light detector comprised an unpackaged semiconductor die having an electrical contact pad on a face thereof, which is directly mounted on a conductive area on said flexible substrate and electrically connected thereto.

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