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

  • US 8,577,436 B2
  • Filed: 03/05/2012
  • Issued: 11/05/2013
  • Est. Priority Date: 08/22/2006
  • Status: Expired due to Fees
First Claim
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1. A sensor comprising:

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

    an emitter and a detector disposed on the sensor body on a tissue-contacting surface, wherein the emitter and the detector are configured for pulse oximetry measurements; and

    at least one rigid annular structure not fixedly attached to the sensor body and configured 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 emitter and the detector and covers less than 50% of the surface area of the sensor body when the sensor is applied to the patient.

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