Patent US5296381A successfully refreshed from Google Patents.
US5296381A
Expired / Lapsed
US
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Sensing elements and methods for making and using same
Assignee: Terumo Cardiovascular Systems Corp
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Filing: 1991-08-08
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Granted: 1994-03-22
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Expires: 2011-08-08
Abstract
Abstract A sensing element for sensing the concentration of an analyte in a medium is disclosed. The sensing element comprises a matrix material having at least one indicator component covalently bonded thereto. The indicator component is capable of providing a signal dependent on the concentration of a analyte in a medium. The indicator component is derived from at least one indicator compound having an aromatic ring to which is directly bonded a group including a functional portion which is conjugated relative to this aromatic ring.
Inventors
- 👤 Masao Yafuso
- 👤 Paul F. Korkowski
- 👤 Roger A. Mader
- 👤 Cheng Yan
- 👤 John T. Carlock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 21:43
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/75; G01N21/77; G01N21/7703; A; A61; A61B; A61B5/00; A61B5/145; A61B5/1455; A61B5/1459; G01N2021/7706; G01N2021/772; G01N2021/773; G01N2021/7769; G01N2021/7786
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
78 words
A sensing element for sensing the concentration of an analyte in a medium comprising: a matrix material having at least one indicator component covalently bonded thereto, said indicator component being capable of providing a signal dependent on the concentration of an analyte in a medium and being derived from at least one indicator compound having an aromatic ring to which is directly covalently bonded a group including a functional portion which is conjugated relative to said aromatic ring.
Claim 2
Dependent Claim
78 words
A sensing element for sensing the concentration of an analyte in a medium comprising: a matrix material having at least one indicator component covalently bonded thereto, said indicator component being capable of providing a signal dependent on the concentration of an analyte in a medium and being derived from at least one indicator compound having an aromatic ring to which is directly covalently bonded a group including a functional portion which is conjugated relative to said aromatic ring.
Claim 3
Dependent Claim
18 words
The sensing element of claim 1 wherein said at least one indicator compound is a polynuclear aromatic compound.
Claim 4
Dependent Claim
33 words
The sensing element of claim 2 wherein said polynuclear aromatic compound is selected from decacyclene, derivatives of decacylene, perylene, derivatives of perylene, benzo[ghi]perylene, derivatives of benzo[ghi]perylene, coronene, derivatives of coronene and mixtures thereof.
Claim 5
Dependent Claim
27 words
The sensing element of claim 1 wherein said functional portion is a multiple bond which includes an atom to which said aromatic ring is directly covalently bonded.
Claim 6
Dependent Claim
13 words
The sensing element of claim 4 wherein said group is a vinyl group.
Claim 7
Dependent Claim
25 words
The sensing element of claim 4 wherein said at least one indicator compound is selected from the group consisting of vinyl benzo[ghi]perylenes and mixtures thereof.
Claim 8
Dependent Claim
15 words
The sensing element of claim 1 wherein said functional portion is a carbon-carbon double bond.
Claim 9
Dependent Claim
22 words
The sensing element of claim 1 wherein said matrix material is a polymeric matrix material which is highly permeable to said analyte.
Claim 10
Dependent Claim
16 words
The sensing element of claim 8 wherein said polymeric matrix material is a silicone-based polymeric material.
Claim 11
Dependent Claim
11 words
The sensing element of claim 1 wherein said analyte is oxygen.
Claim 12
Independent Claim
110 words
A method for sensing the concentration of an analyte in a medium comprising: exposing a sensing element to said medium, said sensing element comprising a matrix material having at least one indicator component covalently bonded thereto, said indicator component being capable of providing a signal dependent on the concentration of said analyte in said medium and being derived from at least one indicator compound having an aromatic ring to which is directly covalently bonded a group including a functional portion which is conjugated relative to said aromatic ring; causing said indicator component to provide said signal; and analyzing said signal in determining the concentration of said analyte in said medium.
Claim 13
Independent Claim
110 words
A method for sensing the concentration of an analyte in a medium comprising: exposing a sensing element to said medium, said sensing element comprising a matrix material having at least one indicator component covalently bonded thereto, said indicator component being capable of providing a signal dependent on the concentration of said analyte in said medium and being derived from at least one indicator compound having an aromatic ring to which is directly covalently bonded a group including a functional portion which is conjugated relative to said aromatic ring; causing said indicator component to provide said signal; and analyzing said signal in determining the concentration of said analyte in said medium.
Claim 14
Dependent Claim
17 words
The method of claim 11 wherein said at least one indicator compound is a polynuclear aromatic compound.
Claim 15
Dependent Claim
32 words
The method of claim 12 wherein said polynuclear aromatic compound is selected from decacyclene, derivatives of decacylene, perylene, derivatives of perylene, benzo[ghi]perylene, derivatives of benzo[ghi]perylene, coronene, derivatives of coronene and mixtures thereof.
Claim 16
Dependent Claim
26 words
The method of claim 11 wherein said functional portion is a multiple bond which includes an atom to which said aromatic ring is directly covalently bonded.
Claim 17
Dependent Claim
14 words
The method of claim 14 wherein said functional portion is a carbon-carbon double bond.
Claim 18
Dependent Claim
12 words
The method of claim 14 wherein said group is a vinyl group.
Claim 19
Dependent Claim
24 words
The method of claim 14 wherein said at least one indicator compound is selected from the group consisting of vinyl benzo[ghi]perylenes and mixtures thereof.
Claim 20
Dependent Claim
21 words
The method of claim 11 wherein said matrix material is a polymeric matrix material which is highly permeable to said analyte.
Claim 21
Dependent Claim
15 words
The method of claim 18 wherein said polymeric matrix material is a silicone-based polymeric material.
Claim 22
Dependent Claim
10 words
The method of claim 11 wherein said analyte is oxygen.
Claim 23
Independent Claim
115 words
A method for producing a sensing element useful for sensing the concentration of an analyte in a medium comprising: contacting at least one precursor of an indicator component with a reactable material at conditions effective to form a matrix material having said indicator component covalently bonded thereto, said at least one precursor of said indicator component including an indicator compound having an aromatic ring to which is directly covalently bonded a group including a functional portion which is conjugated relative to said aromatic ring and which is capable of chemically reacting at said conditions, said covalently bonded indicator component being capable of providing a signal dependent on the concentration of said analyte in said medium.
Claim 24
Independent Claim
115 words
A method for producing a sensing element useful for sensing the concentration of an analyte in a medium comprising: contacting at least one precursor of an indicator component with a reactable material at conditions effective to form a matrix material having said indicator component covalently bonded thereto, said at least one precursor of said indicator component including an indicator compound having an aromatic ring to which is directly covalently bonded a group including a functional portion which is conjugated relative to said aromatic ring and which is capable of chemically reacting at said conditions, said covalently bonded indicator component being capable of providing a signal dependent on the concentration of said analyte in said medium.
Claim 25
Dependent Claim
14 words
The method of claim 21 wherein said indicator compound is a polynuclear aromatic compound.
Claim 26
Dependent Claim
32 words
The method of claim 21 wherein said polynuclear aromatic compound is selected from decacyclene, derivatives of decacylene, perylene, derivatives of perylene, benzo[ghi]perylene, derivatives of benzo[ghi]perylene, coronene, derivatives of coronene and mixtures thereof.
Claim 27
Dependent Claim
26 words
The method of claim 21 wherein said functional group is a multiple bond which includes an atom to which said aromatic ring is directly covalently bonded.
Claim 28
Dependent Claim
14 words
The method of claim 24 wherein said functional portion is a carbon-carbon double bond.
Claim 29
Dependent Claim
12 words
The method of claim 24 wherein said group is a vinyl group.
Claim 30
Dependent Claim
26 words
The method of claim 24 wherein said at least one precursor of said indicator component is selected from the group consisting of vinylbenzo[ghi]perylenes and mixtures thereof.
Claim 31
Dependent Claim
21 words
The method of claim 21 wherein said matrix material is a polymeric matrix material which is highly permeable to said analyte.
Claim 32
Dependent Claim
15 words
The method of claim 28 wherein said polymeric matrix material is a silicone-based polymeric material.
Claim 33
Dependent Claim
10 words
The method of claim 21 wherein said analyte is oxygen.
Claim 34
Independent Claim
131 words
A method for producing a sensing element useful for sensing the concentration of an analyte in a medium comprising: contacting a composition containing at least one precursor of an indicator component and at least one of a silicone-based polymer and a precursor of a silicone-based polymer at conditions effective to form a cross-linked, silicone-based polymeric matrix material having said indicator component covalently bonded thereto, said covalently bonded indicator component being capable of providing a signal dependent on the concentration of said analyte in said medium, said at least one precursor of said indicator component including an indicator compound having an aromatic ring to which is covalently bonded a group including a functional portion which is conjugated relative to said aromatic ring and which is capable of chemically reacting at said conditions.
Claim 35
Independent Claim
131 words
A method for producing a sensing element useful for sensing the concentration of an analyte in a medium comprising: contacting a composition containing at least one precursor of an indicator component and at least one of a silicone-based polymer and a precursor of a silicone-based polymer at conditions effective to form a cross-linked, silicone-based polymeric matrix material having said indicator component covalently bonded thereto, said covalently bonded indicator component being capable of providing a signal dependent on the concentration of said analyte in said medium, said at least one precursor of said indicator component including an indicator compound having an aromatic ring to which is covalently bonded a group including a functional portion which is conjugated relative to said aromatic ring and which is capable of chemically reacting at said conditions.
Claim 36
Dependent Claim
17 words
The method of claim 31 wherein said at least one indicator compound is a polynuclear aromatic compound.
Claim 37
Dependent Claim
31 words
The method of claim 32 wherein said polynuclear aromatic compound is selected from decacyclene, derivatives of decacylene, perylene, derivatives of benzo[ghi]perylene, derivatives of benzo[ghi]perylene, coronene, derivatives of coronene and mixtures thereof.
Claim 38
Dependent Claim
27 words
The method of claim 31 where in said functional portion is a multiple bond which includes an atom to which said aromatic ring is directly covalently bonded.
Claim 39
Dependent Claim
14 words
The method of claim 34 wherein said functional portion is a carbon-carbon double bond.
Claim 40
Dependent Claim
12 words
The method of claim 34 wherein said group is a vinyl group.
Claim 41
Dependent Claim
27 words
The method of claim 34 wherein said at least one precursor of said indicator component is selected from the group consisting of vinyl benzo[ghi]perylene and mixtures thereof.
Claim 42
Dependent Claim
10 words
The method of claim 31 wherein said analyte is oxygen.
Claim 43
Dependent Claim
11 words
The method of claim 31 wherein said group includes a heteroatom.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-21 | 1997-09-20 | 1998-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-21 | 2001-09-20 | 2002-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-21 | 2005-09-20 | 2006-03-22 | $7700.00 | Window Closed / Lapsed |