EP0413499A2
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EP
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Sensor element and method for making the same
Assignee: Puritan Bennett Corp
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Filing: 1990-08-07
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Granted: —
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Expires: 2010-08-07
Abstract
Abstract A sensor element (10) includes an analyte-permeable matrix (16) which supports and maintains a sensing solution containing an analyte-sensitive indicator substance in a plurality of tiny vesicles (18). The sensor element (10) is prepared by combining the sensing solution remains suspended in these dispersed vesicles (18) after the matrix solidifies. A sensor element (10) made in accordance with the present invention may be placed at the end of an optical fibr (14).
Inventors
- 👤 Henry K. Hui
- 👤 Charles S. Bankert
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 23:09
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/63; G01N21/64; G01N21/6428; G01N21/643; G01N21/75; G01N21/77; G01N21/7703; G01N21/17; G01N2021/1738; G01N2021/174; G01N2021/6434; G01N2021/7706; G01N2021/772; G01N2021/773; G01N2021/775; G01N2021/7769; G01N2021/7786
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A sensor element for sensing analyte in a sample comprising: a matrix made from a material that is permeable to the analyte; and sensing solution including an indicator that is capable of responding to the analyte and is disposed within a plurality of vesicles dispersed throughout said matrix, said indicator being exposable to an external excitation through said matrix, wherein said indicator displays an output when exposed to the external excitation that is related to the content of the analyte in the sample.
Claim 2
Dependent Claim
83 words
A sensor element for sensing analyte in a sample comprising: a matrix made from a material that is permeable to the analyte; and sensing solution including an indicator that is capable of responding to the analyte and is disposed within a plurality of vesicles dispersed throughout said matrix, said indicator being exposable to an external excitation through said matrix, wherein said indicator displays an output when exposed to the external excitation that is related to the content of the analyte in the sample.
Claim 3
Dependent Claim
103 words
A sensor element comprising: a matrix made from a material that is permeable to at least one analyte; a first sensing solution with an indicator that is responsive to a particular analyte; and a second sensing solution with an indicator that is responsive to a second analyte, each of said sensing solutions being dispersed within a plurality of separate vesicles that are dispersed throughout said matrix, each indicator being exposable within said matrix to an external excitation and adapted to display an output when exposed to the excitation, each of said displays being related to the content of the analyte in the sample.
Claim 4
Dependent Claim
103 words
A sensor element comprising: a matrix made from a material that is permeable to at least one analyte; a first sensing solution with an indicator that is responsive to a particular analyte; and a second sensing solution with an indicator that is responsive to a second analyte, each of said sensing solutions being dispersed within a plurality of separate vesicles that are dispersed throughout said matrix, each indicator being exposable within said matrix to an external excitation and adapted to display an output when exposed to the excitation, each of said displays being related to the content of the analyte in the sample.
Claim 5
Independent Claim
60 words
A method for making a sensor element the steps of: combining a sensing solution including an indicator substance that is responsive to an analyte with an emulsifier solution; adding a liquified matrix that is permeable to at least one analyte with the emulsified solution; dispersing the emulsified solution throughout the liquified matrix material; and allowing the matrix material to solidify.
Claim 6
Independent Claim
60 words
A method for making a sensor element the steps of: combining a sensing solution including an indicator substance that is responsive to an analyte with an emulsifier solution; adding a liquified matrix that is permeable to at least one analyte with the emulsified solution; dispersing the emulsified solution throughout the liquified matrix material; and allowing the matrix material to solidify.
Claim 7
Dependent Claim
16 words
The method of Claim 3 wherein the emulsified solution is homogenously dispersed throughout the matrix material.
Claim 8
Dependent Claim
24 words
The method of Claim 3 further comprising, before the dispersing step, the step of: mixing a catalyst to the emulsified solution and liquid matrix.
Claim 9
Dependent Claim
42 words
The method of Claim 3 further comprising, before the dispersing step, the step of: combining a second sensing solution having an indicator that is receptive to a second analyte with an emulsifier; and mixing the emulsified solution with the liquified matrix material.
Claim 10
Dependent Claim
58 words
An optical fibre probe comprising: an optical fibre having a distal end; and an analyte-permeable membrane attached to said distal end of said optical fibre, said membrane including an analyte-permeable matrix which supports a plurality of vesicles that are homogenously dispersed throughout said matrix, said vesicles being adapted to hold a sensing solution including an analyte-sensitive indicator substance.
Claim 11
Dependent Claim
58 words
An optical fibre probe comprising: an optical fibre having a distal end; and an analyte-permeable membrane attached to said distal end of said optical fibre, said membrane including an analyte-permeable matrix which supports a plurality of vesicles that are homogenously dispersed throughout said matrix, said vesicles being adapted to hold a sensing solution including an analyte-sensitive indicator substance.
References Cited (Backward Citations)
No citation records indexed.
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