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Medical sensor for reducing signal artifacts and technique for using the same

  • US 8,145,288 B2
  • Filed: 08/22/2006
  • Issued: 03/27/2012
  • Est. Priority Date: 08/22/2006
  • Status: Active Grant
First Claim
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1. A sensor comprising:

  • a conformable bandage-type sensor body adapted to be directly applied to a patient'"'"'s digit;

    at least one sensing element disposed on the sensor body on a tissue-contacting surface; and

    at least one rigid annular structure not fixedly attached to the sensor body and adapted to be applied to the sensor body on a surface opposing the tissue-contacting surface with a pressure to retain the sensor body in place on the patient'"'"'s digit and such that the rigid annular structure covers an area of the sensor body corresponding to the at least one sensing element and covers less than 50% of the surface of the sensor body when the sensor is applied to the patient.

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