CA2159235A1 - Apparatus and method for measuring components in a bag - Google Patents

Apparatus and method for measuring components in a bag

Info

Publication number
CA2159235A1
CA2159235A1 CA002159235A CA2159235A CA2159235A1 CA 2159235 A1 CA2159235 A1 CA 2159235A1 CA 002159235 A CA002159235 A CA 002159235A CA 2159235 A CA2159235 A CA 2159235A CA 2159235 A1 CA2159235 A1 CA 2159235A1
Authority
CA
Canada
Prior art keywords
bag
radiation
measuring components
bag chamber
components
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
CA002159235A
Other languages
French (fr)
Other versions
CA2159235C (en
Inventor
Don S. Goldman
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.)
Optical Solutions Inc
Original Assignee
Optical Solutions Inc
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 Optical Solutions Inc filed Critical Optical Solutions Inc
Publication of CA2159235A1 publication Critical patent/CA2159235A1/en
Application granted granted Critical
Publication of CA2159235C publication Critical patent/CA2159235C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
    • 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
    • G01N2021/0364—Cuvette constructions flexible, compressible
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light

Abstract

An apparatus for measuring components in a liquid medium, in particular parenteral nutrients, within a flexible transparent bag. A spacer is utilized to fix or determine the optical path across the bag chamber and includes a passage for electromagnetic radiation of selected wavelengths.
The source of electromagnetic radiation is capable of sending radiation into the bag chamber and to detector means which analyzes the radiation passed through or reflected from the components in the bag chamber.
CA002159235A 1994-10-03 1995-09-27 Apparatus and method for measuring components in a bag Expired - Fee Related CA2159235C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/317,114 1994-10-03
US08/317,114 US5510621A (en) 1994-10-03 1994-10-03 Apparatus and method for measuring components in a bag

Publications (2)

Publication Number Publication Date
CA2159235A1 true CA2159235A1 (en) 1996-04-04
CA2159235C CA2159235C (en) 2005-11-22

Family

ID=23232176

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002159235A Expired - Fee Related CA2159235C (en) 1994-10-03 1995-09-27 Apparatus and method for measuring components in a bag

Country Status (7)

Country Link
US (2) US5510621A (en)
EP (1) EP0706043B1 (en)
JP (1) JPH08210973A (en)
AT (1) ATE192572T1 (en)
AU (1) AU693926B2 (en)
CA (1) CA2159235C (en)
DE (1) DE69516620T2 (en)

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Also Published As

Publication number Publication date
US5510621A (en) 1996-04-23
US5750998A (en) 1998-05-12
AU3304095A (en) 1996-04-18
EP0706043A3 (en) 1998-05-20
EP0706043A2 (en) 1996-04-10
JPH08210973A (en) 1996-08-20
DE69516620T2 (en) 2001-01-11
DE69516620D1 (en) 2000-06-08
CA2159235C (en) 2005-11-22
AU693926B2 (en) 1998-07-09
ATE192572T1 (en) 2000-05-15
EP0706043B1 (en) 2000-05-03

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