Gel pad optical sensor
First Claim
Patent Images
1. A sensor comprising:
- a cover layer;
an emitter disposed on a first side of said cover layer;
a detector disposed on said first side of said cover layer; and
an oil plasticized thermoplastic elastomer gel disposed on said first side of said cover layer, said gel being an outside layer for direct contact with a patient.
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Accused Products
Abstract
An improved sensor using a gel. In one aspect, the gel is an oil plasticized thermoplastic elastomer gel. In one embodiment, the gel is mineral oil-based. The gel may be embedded on a support layer. Means for reducing shunted light from the gel are provided, such as substantially opaque material in the gel or breaks in the gel.
292 Citations
58 Claims
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1. A sensor comprising:
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a cover layer; an emitter disposed on a first side of said cover layer; a detector disposed on said first side of said cover layer; and an oil plasticized thermoplastic elastomer gel disposed on said first side of said cover layer, said gel being an outside layer for direct contact with a patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 56, 57, 58)
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17. A method of manufacturing a sensor, comprising the steps of:
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providing a cover layer; disposing an emitter on a first side of said cover layer; disposing a detector on said first side of said cover layer; and disposing an oil plasticized thermoplastic elastomer gel on said first side of said cover layer, said gel being an outside layer which can be exposed and placed in direct contact with a patient. - View Dependent Claims (18, 19, 20, 21)
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22. A sensor comprising:
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a cover layer; an emitter disposed on a first side of said cover layer; a detector disposed on said first side of said cover layer; and a mineral oil based gel disposed on said first side of said cover layer, said gel being an outside layer for direct contact with a patient. - View Dependent Claims (23, 24, 25, 26)
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27. An pulse oximeter sensor comprising:
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a cover layer; an emitter disposed on a first side of said cover layer; a detector disposed on said first side of said cover layer; a support layer mounted on said first side of said cover layer; and a gel embedded in said support layer, said gel and support layer forming an outside layer for direct contact with a patient. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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34. A sensor comprising:
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a cover layer; an emitter disposed on a first side of said cover layer; a detector disposed on said first side of said cover layer; a gel mounted on said first side of said cover layer, said gel being an outside layer for direct contact with a patient; and means for reducing shunt radiation to said detector to a level which results in less than 10 nA of shunt current produced by said detector. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
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42. A sensor comprising:
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a cover layer; an emitter disposed on a first side of said cover layer; a detector disposed on said first side of said cover layer; and a gel disposed on said first side of said cover layer, said gel being electrically conductive, said gel being an outside layer for direct contact with a patient. - View Dependent Claims (43)
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44. A sensor comprising:
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a cover layer; an emitter disposed on a first side of said cover layer; a detector disposed on said first side of said cover layer; a gel disposed on said first side of said cover layer, said gel being an outside layer for direct contact with a patient; and wherein said gel defines holes over said emitter and detector such that radiation transmissions to and from said detector and emitter need not pass through said gel. - View Dependent Claims (45, 46, 47, 48, 49)
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50. A sensor comprising:
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a cover layer; an emitter disposed on a first side of said cover layer; a detector disposed on said first side of said cover layer; a gel disposed on said first side of said cover layer, said gel being an outside layer for direct contact with a patient; and wherein said gel defines a break between said emitter and detector to reduce radiation shunting from said emitter to said detector. - View Dependent Claims (51, 52, 53, 54, 55)
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Specification