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US4396579A Expired / Lapsed US ⏱️ 0.0 years remaining

Luminescence detection device

Assignee: Bayer Corp
•
Filing: 1981-08-06
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Granted: 1983-08-02
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Expires: 2001-08-06
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Abstract

Abstract A luminescence detection device for quantitatively detecting an analyte in a liquid sample, which device comprises (1) a reaction compartment having, along a primary axis, opposite end portions, a first of which is for introduction of fluid reagents and sample into the compartment and the other of which forms a light transmissive aperture of predetermined size, the compartment being suitable to hold a composition which luminesces in response to contact with analyte-containing sample; (2) closure means in said first end portion for admitting a cannula, whereby fluid is introduced into said compartment, and for closing the reaction compartment; (3) a photoresponsive imaging layer; (4) means for associating the photoresponsive imaging layer and the reaction compartment such that the photoresponsive imaging layer is positioned preferably substantially perpendicular to the primary axis of the reaction compartment, at a predetermined distance from the end portion forming the aperture so as to be exposed to light emanating therefrom; and (5) means for preventing exposure of the photoresponsive imaging layer to ambient light.

Inventors

  • 👤 Hartmut R. Schroeder
  • 👤 Paul O. Vogelhut

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 16:01
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/58; G01N33/582; G01N21/00; G01N21/75; G01N21/76; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/835; Y10T; Y10T436/00; Y10T436/20; Y10T436/206664

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 158 words
A luminescence detection device for quantiatively detecting an analyte in a liquid sample, which device comprises (1) an opaque reaction compartment having, along a primary axis, opposite end portions, a first of which is for introduction of fluid reagents and sample into the compartment and the other of which forms a light transmission aperture of predetermined size, the compartment being suitable to hold a composition which luminesces in response to contact with analyte-containing sample; (2) closure means in said first end portion for admitting a cannula, whereby fluid is introduced into said compartment, and for closing the reaction compartment; (3) a photoresponsive imaging layer; (4) means for associating the photoresponsive imaging layer and the reaction compartment such that the photoresponsive imaging layer is positioned at a predetermined distance from the end portion forming the aperture so as to be exposed to light emanating therefrom; and (5) means for blocking the photoresponsive imaging layer from exposure to ambient light.
Claim 2
Dependent Claim 158 words
A luminescence detection device for quantiatively detecting an analyte in a liquid sample, which device comprises (1) an opaque reaction compartment having, along a primary axis, opposite end portions, a first of which is for introduction of fluid reagents and sample into the compartment and the other of which forms a light transmission aperture of predetermined size, the compartment being suitable to hold a composition which luminesces in response to contact with analyte-containing sample; (2) closure means in said first end portion for admitting a cannula, whereby fluid is introduced into said compartment, and for closing the reaction compartment; (3) a photoresponsive imaging layer; (4) means for associating the photoresponsive imaging layer and the reaction compartment such that the photoresponsive imaging layer is positioned at a predetermined distance from the end portion forming the aperture so as to be exposed to light emanating therefrom; and (5) means for blocking the photoresponsive imaging layer from exposure to ambient light.
Claim 3
Dependent Claim 20 words
The device of claim 1 wherein the reaction compartment comprises an opaque reaction vessel housing and a reaction vessel therein.
Claim 4
Dependent Claim 11 words
The device of claim 2 wherein the reaction vessel is transparent.
Claim 5
Dependent Claim 16 words
The device of claim 1 wherein the closure means is an integral portion of the compartment.
Claim 6
Dependent Claim 12 words
The device of claim 1 wherein the closure means is a septum.
Claim 7
Dependent Claim 13 words
The device of claim 1 wherein the photoresponsive imaging layer is photographic film.
Claim 8
Dependent Claim 14 words
The device of claim 1 wherein the photoresponsive imaging layer is self-developing photographic film.
Claim 9
Dependent Claim 40 words
The device of claim 1 wherein the means for associating the photoresponsive imaging layer and reaction compartment comprises a base having a horizontal chamber for accepting the photoresponsive imaging layer and, thereabove, a carriage for vertically holding the reaction compartment.
Claim 10
Dependent Claim 23 words
The device of claim 8 wherein the base further comprises a shutter assembly positioned between the reaction compartment and the photoresponsive imaging layer.
Claim 11
Dependent Claim 18 words
The device of claim 8 wherein the base blocks the photoresponsive imaging layer from exposure to ambient light.

References Cited (Backward Citations)

US3923462A Cited
US4154795A Cited
US4099920A Cited
US4231754A Cited
US4294931A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-08-01 1987-01-31 1987-08-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-08-01 1991-01-31 1991-08-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-08-01 1995-01-31 1995-08-02 $7700.00 Window Closed / Lapsed

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