Non-adhesive oximeter sensor for sensitive skin
View Patent ↗The present invention provides non-adhesive oximeter sensors for patients with sensitive skin. Sensors of the present invention include a light emitting diode (LED) and a photodetector. The LED and the photodetector may be covered by a reflective mask and a faraday shield. Sensors of the present invention have a non-adhesive laminated layer. The non-adhesive layer contacts, but does not stick to, the patient's skin. When the sensor is removed from the patient, the non-adhesive layer does not tear or irritate the patient's skin. The non-adhesive layer preferably has a large static coefficient of friction. Sensors of the present invention can also have hook-and-loop layers. The sensor can be attached to the patient's body by wrapping the sensor around the patient and engaging the hook layer to the loop layer.
1. A sensor comprising:
a light emitting element;
a light detecting element;
a substrate configured to encircle a portion of a patient, the substrate adapted to support the light emitting element and the light detecting element between layers, the substrate comprising a non-adhesive polyvinyl chloride material having a patient-contacting surface, the substrate having a thickness of less than 0.1 inch and being adapted to releasably attach one portion of the substrate to another portion of the substrate for securement to the patient, wherein the substrate comprises at least two layers laminated together;
a cable coupled to the light emitting element and to the light detecting element; and
a strap coupled to the cable, the strap being configured to wrap around a portion of the patient's body to secure the cable to the patient.
2. The sensor, as set forth in claim 1 , wherein the strap is moveably coupled to the cable, the strap being configured to slide along the cable.
3. The sensor, as set forth in claim 1 , wherein the at least one light emitting element and the at least one light detecting element are configured to produce oximetry readings.
4. The sensor, as set forth in claim 1 , wherein the substrate comprises a non-adhesive patient contacting surface.
5. The sensor, as set forth in claim 1 , wherein the substrate comprises a hook portion and a loop portion, the hook portion being releasably coupleable to the loop portion to facilitate attaching the substrate about an appendage of the patient.
6. The sensor, as set forth in claim 5 , wherein the appendage comprises a foot.
7. The sensor, as set forth in claim 1 , wherein the substrate comprises a plurality of thin layers of laminated material.
8. The sensor, as set forth in claim 1 , wherein the strap comprises a loop at one end, the loop being secured around the cable to allow the strap to slide along the cable.
9. The sensor, as set forth in claim 1 , wherein the strap comprises a hook portion and a loop portion, the hook portion being releasably coupleable to the loop portion to facilitate attaching the strap about the portion of the patient's body.
10. The sensor, as set forth in claim 9 , wherein the portion of the patient's body comprises an ankle.