CA2168859A1 - Fluid dose, flow and coagulation sensor for medical instrument - Google Patents

Fluid dose, flow and coagulation sensor for medical instrument

Info

Publication number
CA2168859A1
CA2168859A1 CA002168859A CA2168859A CA2168859A1 CA 2168859 A1 CA2168859 A1 CA 2168859A1 CA 002168859 A CA002168859 A CA 002168859A CA 2168859 A CA2168859 A CA 2168859A CA 2168859 A1 CA2168859 A1 CA 2168859A1
Authority
CA
Canada
Prior art keywords
radiation
flow
medical instrument
blood
fluid dose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002168859A
Other languages
French (fr)
Other versions
CA2168859C (en
Inventor
Gary T. Neel
James R. Parker
Rick L. Collins
David E. Storvick
Charles L. Thomeczek, Jr.
William J. Murphy
George R. Lennert
Morris J. Young
Daniel L. Kennedy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roche Diagnostics Operations Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2168859A1 publication Critical patent/CA2168859A1/en
Application granted granted Critical
Publication of CA2168859C publication Critical patent/CA2168859C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N35/00594—Quality control, including calibration or testing of components of the analyser
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
    • G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
    • G01N11/06—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by timing the outflow of a known quantity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/0303—Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/0332—Cuvette constructions with temperature control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/8483—Investigating reagent band
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/49—Blood
    • G01N33/4905—Determining clotting time of blood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N35/00594—Quality control, including calibration or testing of components of the analyser
    • G01N35/00693—Calibration

Abstract

An instrument (100) and a method for determining a coagulation characteristic of blood, a blood fraction or a control comprise a radiation-reflective surface (194), a first source (244) for irradiating the surface (194), and a first detector (242) for detecting radiation reflected from the surface (194). A cuvette (101) holds a sample (514) of the blood, blood fraction or control the coagulation characteristic of which is to be determined. The cuvette (101) has two opposed walls (506, 508) substantially transparent to the source (244) radiation and reflected radiation. The first source (244) and first detector (242) are disposed adjacent a first one (508) of the two opposed walls (506, 508) and the radiation reflective surface (194) is disposed adjacent a second (506) or the two opposed walls (506, 508).
CA002168859A 1993-08-31 1994-08-23 Fluid dose, flow and coagulation sensor for medical instrument Expired - Lifetime CA2168859C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/114,913 US5522255A (en) 1993-08-31 1993-08-31 Fluid dose, flow and coagulation sensor for medical instrument
US08/114,913 1993-08-31
PCT/US1994/009505 WO1995007452A2 (en) 1993-08-31 1994-08-23 Coagulation monitor

Publications (2)

Publication Number Publication Date
CA2168859A1 true CA2168859A1 (en) 1995-03-16
CA2168859C CA2168859C (en) 2007-01-09

Family

ID=22358194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002168859A Expired - Lifetime CA2168859C (en) 1993-08-31 1994-08-23 Fluid dose, flow and coagulation sensor for medical instrument

Country Status (7)

Country Link
US (7) US5522255A (en)
EP (1) EP0716739B1 (en)
JP (3) JP3625476B2 (en)
CA (1) CA2168859C (en)
DE (1) DE69434545T2 (en)
ES (1) ES2252735T3 (en)
WO (1) WO1995007452A2 (en)

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US6575017B1 (en) 2003-06-10
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US20030136183A1 (en) 2003-07-24
EP0716739A4 (en) 1997-06-18
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WO1995007452A2 (en) 1995-03-16
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US7117721B2 (en) 2006-10-10
US5789664A (en) 1998-08-04
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JPH09502800A (en) 1997-03-18
CA2168859C (en) 2007-01-09
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US6189370B1 (en) 2001-02-20
US5710622A (en) 1998-01-20
US5522255A (en) 1996-06-04
US5686659A (en) 1997-11-11

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