EP0212455B1
Expired / Lapsed
EP
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Fluorescence detection apparatus for immunoassay
Assignee: Tosoh Corp
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Filing: 1986-08-06
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Granted: 1990-10-31
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Expires: 2006-08-06
Abstract
No abstract record available.
Inventors
- 👤 Hidechika Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 20:23
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/63; G01N21/64; G01N21/645; G01N21/6408; G01N21/6428; G01N2201/00; G01N2201/06; G01N2201/061; G01N2201/069; G01N2201/0696
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
165 words
A fluorescence detection apparatus for immunoassay having means for irradiating a sample (5) containing a fluorescent substance obtained by an immunoreaction with a light emitted intermittently from a light source (2, 12) at a predetermined frequency, a power source (1), means for receiving fluorescence emitted from said sample (5) for converting the received fluorescence into an electric signal to detect an intensity of said fluorescence by way of said electric signal, means for detecting said electric signal in synchronism with said frequency of intermittent irradiation; characterized in that said irradiating means has an illuminating tube (2, 12) which is intermittently energized and intermittently driven by said power source (1) being an AC or pulse power source at the duty ratio of 1:1, that said conversion means includes a plurality of units separately assigned to each sample (5) of a plurality of said samples (5) aligned in a row, and that said irradiating means is one unit disposed in common for said plurality of samples (5).
Claim 2
Dependent Claim
165 words
A fluorescence detection apparatus for immunoassay having means for irradiating a sample (5) containing a fluorescent substance obtained by an immunoreaction with a light emitted intermittently from a light source (2, 12) at a predetermined frequency, a power source (1), means for receiving fluorescence emitted from said sample (5) for converting the received fluorescence into an electric signal to detect an intensity of said fluorescence by way of said electric signal, means for detecting said electric signal in synchronism with said frequency of intermittent irradiation; characterized in that said irradiating means has an illuminating tube (2, 12) which is intermittently energized and intermittently driven by said power source (1) being an AC or pulse power source at the duty ratio of 1:1, that said conversion means includes a plurality of units separately assigned to each sample (5) of a plurality of said samples (5) aligned in a row, and that said irradiating means is one unit disposed in common for said plurality of samples (5).
Claim 3
Dependent Claim
42 words
A fluorescence detection apparatus for immunoassay as claimed in Claim 1, characterized in that the direction of said irradiation of said sample (5) with the light emitted from said light source (12) and that of extraction of said fluorescence are the same.
Claim 4
Dependent Claim
58 words
A fluorescence detection apparatus for immunoassay as claimed in Claim 1 or 2, characterized in that said irradiating means has a single elongated illuminating tube (2, 12) having a length covering all of said samples (5) aligned in a row so that the light is irradiated in common from said light source (2, 12) to said samples (5).
Claim 5
Dependent Claim
77 words
A fluorescence detection apparatus for immunoassay as claimed in Claim 3, further comprising means (13) for splitting a light and said splitting means (13) being disposed in a light path between said samples (5) and said converting means (8) for guiding the light emitted from said illuminating tube (12) to said samples (5) through said splitting means (13), and fluorescence emitted from said samples (5) being guided to said converting means (8) through said splitting means (13).
References Cited (Backward Citations)
No citation records indexed.
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