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US 8,577,436 B2Granted
Medical sensor for reducing signal artifacts and technique for using the same
AssigneeCovidien LP
InventorClark R. Baker, Jr.
Life of this patent
Estimating the term…
Abstract
A sensor may be adapted to reduce signal artifacts by deflecting the effects of outside forces and sensor motion. A sensor is provided with a rigid annular structure adapted to reduce the effect of motion of a sensor emitter and/or detector. Further, a method of deflecting or minimizing outside forces and sensor motion is also provided.
Claims20
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.
1 more element
A physiologic monitoring system comprising:
- a monitor configured to receive a physiological signal;
- and
- a sensor configured to be operatively coupled to the monitor, the
- 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 wherein the detector is configured to provide the physiological signal to the monitor;
- 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 and wherein the rigid annular structure comprises a motion damping structure.
5 more elements
A sensor kit comprising:
- a sensor comprising:
- a conformable bandage-type sensor body configured to be directly applied to a patient's tissue;
- at least one sensing element disposed on a tissue-contacting surface of the sensor body;
- and
- a plurality of rigid annular structures of various sizes adapted to be not fixedly attached to the sensor body and adapted to be applied to the sensor body on a surface opposing the tissue-contacting surface such that, when one of the plurality of rigid annular structures is applied 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 area of the sensor body when the sensor body is applied to the patient and wherein at least one of the rigid annular structures is configured to apply a pressure to retain the sensor body in place on the patient's tissue.
2 more elements
Dependencies are inferred from the claim text.