REGIONAL OXIMETRY SENSOR
First Claim
1. A regional oximetry sensor comprising:
- a face tape layer;
a base tape layer adhesively attachable to a patient skin surface;
at least one emitter configured to transmit optical radiation into the patient skin surface;
a near-field detector configured to detect the optical radiation after attenuation by tissue of the patient;
a far field detector also configured to detect the optical radiation after attenuation by tissue of the patient; and
at least one focus element associated with at least one of the at least one emitter, the near-field detector and the far field detector.
1 Assignment
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Accused Products
Abstract
A regional oximetry sensor has a sensor head attachable to a patient skin surface so as to transmit optical radiation into the skin and receive that optical radiation after attenuation by blood flow within the skin. The sensor includes windows that press into the skin to maximize optical transmission. A stem extending from the sensor head transmits electrical signals between the sensor head and an attached cable. In a peel resistant configuration, the stem is terminated interior to the sensor head and away from a sensor head edge so as to define feet along either side of the stem distal the stem termination. The stem interior termination transforms a peel load on a sensor head adhesive to less challenging tension and shear loads on the sensor head adhesive.
416 Citations
21 Claims
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1. A regional oximetry sensor comprising:
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a face tape layer; a base tape layer adhesively attachable to a patient skin surface; at least one emitter configured to transmit optical radiation into the patient skin surface; a near-field detector configured to detect the optical radiation after attenuation by tissue of the patient; a far field detector also configured to detect the optical radiation after attenuation by tissue of the patient; and at least one focus element associated with at least one of the at least one emitter, the near-field detector and the far field detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A regional oximetry sensor comprising:
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a face tape layer; a base tape layer adhesively attachable to a patient skin surface; at least one emitter configured to transmit optical radiation in to the patient skin surface; a near-field detector configured to detect the optical radiation after attenuation by tissue of the patient; a far field detector also configured to detect the optical radiation after attenuation by tissue of the patient; and wherein the face tape layer and the base tape layer cooperate together and include a plurality of notches forming a plurality of cutouts. - View Dependent Claims (11, 12, 13)
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14. A peel-off resistant regional oximetry sensor comprising:
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a sensor head attachable to a patient skin surface and configured to transmit optical radiation into the skin and receive that optical radiation after attenuation by blood flow within the skin; and a stem extending from the sensor head and configured to transmit electrical signals between the sensor head and an attached cable; wherein the stem is terminated interior to the sensor head and away from an edge of the sensor head so as to define feet along either side of the stem distal the stem termination. - View Dependent Claims (15, 16, 17)
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18. A peel-off resistant regional oximetry sensor comprising:
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a face tape layer; a base tape layer adhesively attachable to a patient skin surface, the face tape layer and base tape layer cooperating to form a sensor head and stem, the sensor head including notches on either side of the stem at the junction of the sensor head and stem, the notches mechanically decoupling the sensor stem from a radial edge of the sensor head; at least one emitter configured to transmit optical radiation in to the patient skin surface; a near-field detector configured to detect the optical radiation after attenuation by tissue of the patient; and a far field detector also configured to detect the optical radiation after attenuation by tissue of the patient. - View Dependent Claims (19, 20, 21)
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Specification