Patent EP0243116A2 successfully refreshed from Google Patents.
EP0243116A2
Expired / Lapsed
EP
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Optical sensor
Assignee: 3M Co
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Filing: 1987-04-16
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Granted: —
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Expires: 2007-04-16
Abstract
Abstract An optical sensor for a blood constituent of interest comprising: a gas permeable, crosslinked silicone polymeric matrix having at least one optical indicator therein for providing an optical signal in response to excitation light when in the presence of a blood constituent of interest, said one optical indicator consisting essentially of a mixture of derivatives of a polynuclear aromatic compound.
Inventors
- 👤 Masao Yafuso
- 👤 Cheng F. Yan
- 👤 Henry K. Hui
- 👤 William W. Miller
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 18:47
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/63; G01N21/64; G01N21/6428; G01N21/643
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
60 words
An optical sensor for a blood constituent of interest comprising: a gas permeable, crosslinked silicone polymeric matrix having at least one optical indicator therein for providing an optical signal in response to excitation light when in the presence of a blood constituent of interest, said one optical indicator consisting essentially of a mixture of derivatives of a polynuclear aromatic compound.
Claim 2
Dependent Claim
60 words
An optical sensor for a blood constituent of interest comprising: a gas permeable, crosslinked silicone polymeric matrix having at least one optical indicator therein for providing an optical signal in response to excitation light when in the presence of a blood constituent of interest, said one optical indicator consisting essentially of a mixture of derivatives of a polynuclear aromatic compound.
Claim 3
Dependent Claim
21 words
The sensor of claim 1 wherein: said polynuclear aromatic compound is selected from the group consisting of decacyclene, benzo-ghi-perylene and coronene.
Claim 4
Dependent Claim
14 words
The sensor of claims 1 or 2 wherein: said polynuclear aromatic compound is decacyclene.
Claim 5
Dependent Claim
116 words
The sensor of claim 1, 2 or 3 wherein said polynuclear aromatic compound is derivatized with at least one material selected from the group consisting of aliphatic hydrocarbons, cycloalkyl and cycloalkenyl hydrocarbons, alkyl and alkenyl spiro hydrocarbons, aromatic hydrocarbons, aliphatic-aliphatic ethers, aliphatic-aromatic ethers, aromatic-aromatic ethers, aliphatic-aliphatic ketones, aliphatic-aromatic ketones and aromatic-aromatic ketones; provided that said aliphatic groups are selected from the class consisting of C 1 - C 18 straight and branched chain alkyl, alkenyl and alkynyl groups, and said aromatic groups are selected from the class consisting of unsubstituted and substituted aromatic groups where said substituents on said substituted aromatic groups are selected from the class consisting of alkyl, alkenyl, alkynyl, fluoro and chloro groups.
Claim 6
Dependent Claim
37 words
The sensor of claim 1, 2, 3 or 4 wherein: said mixture of derivatives of said polynuclear aromatic compound is a mixture of t-butyl derivatives of said polynuclear aromatic compound and said polynuclear aromatic compound is decacyclene.
Claim 7
Dependent Claim
27 words
6 .The sensor of claim 1, 2, 3, 4 or 5 wherein: said silicone polymeric matrix is selected from the group consisting of dimethylsiloxane, diphenylsiloxane and dimethyldiphenylsiloxane.
Claim 8
Dependent Claim
31 words
The sensor of claim 1, 2, 3, 4, 5 or 6 wherein: said mixture of derivatives of said polynuclear aromatic compound includes at least three derivatives of said polynuclear aromatic compound.
Claim 9
Dependent Claim
48 words
The sensor of claim 1, 2, 3, 4, 5, 6 or 7 wherein: said mixture of derivatives of said polynuclear aromatic compound is present in said silicone polymeric matrix in a concentration of a least about 1.2 mg of said mixture per gram of said silicone polymeric matrix.
Claim 10
Independent Claim
78 words
An apparatus for measuring a blood constituent of interest comprising: the optical sensor of claims 1, 2, 3, 4, 5, 6, 7 or 8; means for holding the optical sensor so that it can be exposed to blood; and optical fiber means for delivering excitation light to the optical sensor so that the sensor can provide an optical signal indicative of a characteristic of the constituent of interest and for transmitting said optical signal from the optical sensor.
Claim 11
Dependent Claim
22 words
The apparatus of claim 9 wherein: said optical indicator comprises a mixture of derivatives of decacyclene and said derivatives are t-butyl derivatives.
References Cited (Backward Citations)
No citation records indexed.
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