Optoelectronic sensor for producing electrical signals representative of physiological values

• US 5,054,488 A
• Filed: 03/26/1990
• Issued: 10/08/1991
• Est. Priority Date: 04/20/1989
• Status: Expired due to Term

• Current Assignee: Nicolay GmbH Stuttgarter Strasse 76 7312 Kirchheim/Teck West Germany
• Original Assignee: Nicolay GmbH
• Inventors: Muz, Edwin
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): Akers, Scott N.
• Application Number:
  US07/498,750
• Time in Patent Office: 561 Days
• Field of Search: 128/633, 128/634, 128/665, 128/666
• US Class Current: 600/344
• CPC Class Codes: A61B 2562/146 for optical coupling
• CPC Class Codes: A61B 5/02427 Details of sensor
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/6833 Adhesive patches

Abstract

An optoelectronic sensor produces electrical signals representative of measurements of physiological values, especially the circulation parameters of a person. The sensor has at least one radiation transmitter and at least one receiver for radiation influenced by the physiological values being measured. The transmitter and receiver are covered with a transparent adhesive layer on their sides turned toward the object to be measured. The layer is transparent and adhesive at least on its side turned toward to the object to be measured. This transparent layer engages directly on the radiation outlet surface of the radiation transmitter and the radiation admission surface of the radiation receiver.

Claims

1. An optoelectronic sensor for producing electrical signals representative of physiological values, especially human circulation parameters, comprising:

a radiation transmitter having a radiation outlet surface;

a radiation receiver sensitive to receiving radiation emitted by said transmitter and influenced by the physiological values, said receiver having a radiation admission surface; and

a transparent adhesive layer covering said transmitter and said receiver on at least sides thereof facing an object to be measured, said adhesive layer directly engaging said radiation outlet surface and said radiation admission surface.

2. An optoelectronic sensor according to claim 1 wherein said transparent adhesive layer comprises a transparent gel of a silicon base.

3. An optoelectronic sensor according to claim 2 wherein said gel comprises first and second components mixed in a ratio.

4. An optoelectronic sensor according to claim 1 wherein said transparent adhesive layer comprises a transparent support sheet bearing transparent adhesive material on both sides of said transparent support sheet.

5. An optoelectronic sensor according to claim 4 wherein said transparent support sheet has a shape corresponding to a surface area of said outlet surface and said admission surface of said transmitter and said receiver, respectively, to be covered thereby.

6. An optoelectronic sensor according to claim 5 wherein said support sheet comprises an uncoated gripping strap.

7. An optoelectronic sensor according to claim 4 wherein said support sheet comprises an uncoated gripping strap.

8. An optoelectronic sensor according to claim 1 wherein said transparent layer comprises a transparent adhesive gel layer on all sides of an area of application of the sensor.

9. An optoelectronic sensor according to claim 8 wherein said gel layer is covered with a reflecting layer on a side of said gel layer remote from the object to be measured.