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EP0159727A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Analytical element for analysis of whole blood sample

Assignee: Fujifilm Holdings Corp
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Filing: 1985-04-29
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Granted: —
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Expires: 2005-04-29
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Abstract

Abstract An analytical element for the analysis of a whole blood sample; said element comprising a blood cellfiltering layer, a spreading layer capable of metering a liquid sample, a detecting layer containing at least one reagent layer and a water-impermeable, light-transmissive support; each layer laminated on one another in such a manner that the detecting layer is laminated on the support, the spreading layer is laminated on the detecting layer and the blood cell-filtering layer is laminated on the spreading layer. Another analytical element comprising a blood cell-filtering layer, a spreading layer capable of metering a liquid sample containing an analytical reagent and a water-impermeable, light-transmissive support is also disclosed.

Inventors

  • 👤 Nobuhito Masuda
  • 👤 Takeshi Igarashi
  • 👤 Harumi Katsuyama

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 02:16
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/525

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 48 words
An analytical element for the analysis of a whole blood sample; said element comprising a blood cell- filtering layer, a spreading layer capable of metering a liquid sample, a detection layer containing at least one reagent layer, and a water-impermeable, light-transmissive support; which are positioned in this order.
Claim 2
Dependent Claim 48 words
An analytical element for the analysis of a whole blood sample; said element comprising a blood cell- filtering layer, a spreading layer capable of metering a liquid sample, a detection layer containing at least one reagent layer, and a water-impermeable, light-transmissive support; which are positioned in this order.
Claim 3
Dependent Claim 17 words
The analytical element as claimed in claim 1, wherein said blood cell-filtering layer contains a light-blocking material.
Claim 4
Dependent Claim 22 words
The analytical element as claimed in claim 1, wherein said blood cell-filtering layer is a sheet-from filter composed of a glass fiber.
Claim 5
Dependent Claim 22 words
The analytical element as claimed in claim 1, wherein said blood cell-filtering layer has a thickness ranging from 100 to 2,000 µm.
Claim 6
Dependent Claim 20 words
The analytical element as claimed in claim 1, wherein said element is for assaying bilirubin in a whole blood sample.
Claim 7
Dependent Claim 41 words
An analytical element for the analysis of a whole blood sample comprising a blood cell-filtering layer, a spreading layer capable of metering a liquid sample which contains an analytical reagent and a water-impermeable, light-transmissive support; which are positioned in this order.
Claim 8
Dependent Claim 41 words
An analytical element for the analysis of a whole blood sample comprising a blood cell-filtering layer, a spreading layer capable of metering a liquid sample which contains an analytical reagent and a water-impermeable, light-transmissive support; which are positioned in this order.
Claim 9
Dependent Claim 17 words
The analytical element as claimed in claim 6, wherein said blood cell-filtering layer contains a light-blocking material.
Claim 10
Dependent Claim 22 words
The analytical element as claimed in claim 6, wherein said blood cell-filtering layer is a sheet-form filter composed of a glass fiber.
Claim 11
Dependent Claim 21 words
The analytical element as claimed in claim 6, wherein said blood cell-filtering layer has a thickness ranging from 100 to 2,000µm.
Claim 12
Dependent Claim 20 words
The analytical element as claimed in claim 6 wherein said element is for assaying bilirubin in a whole blood sample.

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