Patent DE157349C successfully refreshed from Google Patents.
EP0191650A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Sealing device for analytical slide
Assignee: Fujifilm Holdings Corp
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Filing: 1986-02-17
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Granted: —
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Expires: 2006-02-17
Abstract
Abstract A sealing device for analytical slide encasing a multilayer analytical element within a frame having an opening on each of upper and lower surfaces thereof for use in a process for analysis of a liquid sample comprising steps of applying the liquid sample onto the analytical element, incubating the element and detecting a reaction occurring in the element, said sealing device being to be so arranged adjacently to the analytical slide as to substantially cover the surface of the element on which the liquid sample is applied, for serving to reduce evaporation of the liquid sample from the analytical element during the incubation step, characterised in that at least a part of the surface of the sealing device to face the surface of the element on which the liquid sample is applied is made of an inert material such as a fluorine-containing polymer.
Inventors
- 👤 Nakatsugu Yaginuma
- 👤 Kikuo Hirai
- 👤 Nobuyoshi Sekikawa
- 👤 Yuzo Iwata
- 👤 Shunichi Seto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 17:07
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L2300/00; B01L2300/04; B01L2300/041; B01L2300/08; B01L2300/0809; B01L2300/0822
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A sealing device for analytical slide encasing a multilayer analytical element within a frame having an opening on each of upper and lower surfaces thereof for use in a process for analysis of a liquid sample comprising steps of applying the liquid sample onto the analytical element, incubating the element and detecting a reaction occurring in the element, said sealing device being to be so arranged adjacently to the analytical slide as to substantially cover the surface of the element on which the liquid sample is applied, for serving to reduce evaporation of the liquid sample from the analytical element during the incubation step, characterised in that at least a part of the surface of the sealing device to face the surface of the element on which the liquid sample is applied is made of an inert material.
Claim 2
Dependent Claim
138 words
A sealing device for analytical slide encasing a multilayer analytical element within a frame having an opening on each of upper and lower surfaces thereof for use in a process for analysis of a liquid sample comprising steps of applying the liquid sample onto the analytical element, incubating the element and detecting a reaction occurring in the element, said sealing device being to be so arranged adjacently to the analytical slide as to substantially cover the surface of the element on which the liquid sample is applied, for serving to reduce evaporation of the liquid sample from the analytical element during the incubation step, characterised in that at least a part of the surface of the sealing device to face the surface of the element on which the liquid sample is applied is made of an inert material.
Claim 3
Dependent Claim
16 words
The sealing device as claimed in claim 1, wherein the inert material is a fluorine-containing polymer.
Claim 4
Dependent Claim
34 words
The sealing device as claimed in claim 1, wherein the inert material is a fluorine-containing polymer selected from the group consisting of polytetrafluoroethylene, copolymer of tetrafluoroethylene and hexafluoropropylene, polychlorotrifluoroethylene, polyvinylidene fluoride and polyvinyl fluoride.
Claim 5
Dependent Claim
29 words
The sealing device as claimed in claim 1, wherein the inert material is a fluorine-containing polymer which softens and flows around the melting point threof or a higher temperature.
Claim 6
Dependent Claim
28 words
The sealing device as claimed in any one of claims 1 to 4, wherein the sealing device moves in unit with the analytical slide during the incubation process.
Claim 7
Dependent Claim
38 words
The sealing device as claimed in any one of claims 1 to 4, wherein the device is in the form of a housing which is open at a portion facing the lower surface of a multilayer analytical element.
Claim 8
Dependent Claim
36 words
The sealing device as claimed in any one of claims 1 to 4, which is in the form of a sheet and so designed as to seal the opening of the upper surface of the frame.
Claim 9
Dependent Claim
37 words
The sealing device as claimed in any one of claims 1 to 4, wherein the device is made of a metal material and the fluorine-containing polymer is superposed in layer on the surface of the metal material.
Claim 10
Dependent Claim
26 words
The sealing device as claimed in any one of claims 1 to 4 wherein the device moves relatively to the analytical slide during the incubation process.
Claim 11
Dependent Claim
25 words
The sealing device as claimed in claim 1 or 2, wherein the multilayer analytical element is for use of analysis of ammonia or ammonia-generating substrate.
Claim 12
Dependent Claim
40 words
The sealing device as claimed in claim 1 or 2, wherein substantially whole surface of the sealing device coreesponding to the surface of the multilayer analytical element on which the liquid sample is applied is made of a fluorine-containing polymer.
References Cited (Backward Citations)
No citation records indexed.
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