CA2038912A1 - Fluid dispensing system with optical locator - Google Patents

Fluid dispensing system with optical locator

Info

Publication number
CA2038912A1
CA2038912A1 CA2038912A CA2038912A CA2038912A1 CA 2038912 A1 CA2038912 A1 CA 2038912A1 CA 2038912 A CA2038912 A CA 2038912A CA 2038912 A CA2038912 A CA 2038912A CA 2038912 A1 CA2038912 A1 CA 2038912A1
Authority
CA
Canada
Prior art keywords
pipette
light beam
dispensing system
fluid dispensing
fluids
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
CA2038912A
Other languages
French (fr)
Other versions
CA2038912C (en
Inventor
Fareed Kureshy
Ernest W. Long
Shailendra Singh
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.)
Behring Diagnostics Inc
Original Assignee
PB Diagnostic Sytems 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 PB Diagnostic Sytems Inc filed Critical PB Diagnostic Sytems Inc
Publication of CA2038912A1 publication Critical patent/CA2038912A1/en
Application granted granted Critical
Publication of CA2038912C publication Critical patent/CA2038912C/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
    • 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
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1081—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices characterised by the means for relatively moving the transfer device and the containers in an horizontal plane
    • G01N35/1083—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices characterised by the means for relatively moving the transfer device and the containers in an horizontal plane with one horizontal degree of freedom
    • 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
    • G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04—Details of the conveyor system
    • G01N2035/0474—Details of actuating means for conveyors or pipettes
    • G01N2035/0475—Details of actuating means for conveyors or pipettes electric, e.g. stepper motor, solenoid
    • 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
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
    • G01N35/1011—Control of the position or alignment of the transfer device
    • G01N2035/1013—Confirming presence of tip
    • 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
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N2035/1027—General features of the devices
    • G01N2035/103—General features of the devices using disposable tips
    • 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
    • G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/025—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations having a carousel or turntable for reaction cells or cuvettes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/11—Automated chemical analysis
    • Y10T436/113332—Automated chemical analysis with conveyance of sample along a test line in a container or rack
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/11—Automated chemical analysis
    • Y10T436/113332—Automated chemical analysis with conveyance of sample along a test line in a container or rack
    • Y10T436/114998—Automated chemical analysis with conveyance of sample along a test line in a container or rack with treatment or replacement of aspirator element [e.g., cleaning, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
    • Y10T436/2575—Volumetric liquid transfer

Abstract

There is described an analytical instrument for the analysis of fluids such as biological fluids. The instrument includes a fluid dispensing system having a pipette for dispensing fluid test samples and test reagents to assay cartridges. An optical detection system provides a light beam which intercepts a downward travel path of the pipette prior to its reaching the dispense position.
Measurement of the intensity of the light beam in conjunction with the position of the pipette enables a controller to indicate the presence or absence of a pipette tip. In addition, interception of the light beam by the pipette initiates a final approach sequence for the pipette to the dispense position above an assay cartridge by a predetermined increment of travel.
CA002038912A 1990-05-10 1991-03-22 Fluid dispensing system with optical locator Expired - Fee Related CA2038912C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US521,364 1990-05-10
US07/521,364 US5141871A (en) 1990-05-10 1990-05-10 Fluid dispensing system with optical locator

Publications (2)

Publication Number Publication Date
CA2038912A1 true CA2038912A1 (en) 1991-11-11
CA2038912C CA2038912C (en) 1995-09-19

Family

ID=24076460

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002038912A Expired - Fee Related CA2038912C (en) 1990-05-10 1991-03-22 Fluid dispensing system with optical locator

Country Status (9)

Country Link
US (1) US5141871A (en)
EP (1) EP0482135B1 (en)
JP (1) JP2505338B2 (en)
AT (1) ATE122790T1 (en)
CA (1) CA2038912C (en)
DE (1) DE69109802T2 (en)
DK (1) DK0482135T3 (en)
ES (1) ES2075436T3 (en)
WO (1) WO1991017445A1 (en)

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Also Published As

Publication number Publication date
DE69109802T2 (en) 1995-09-14
DE69109802D1 (en) 1995-06-22
EP0482135A1 (en) 1992-04-29
JP2505338B2 (en) 1996-06-05
US5141871A (en) 1992-08-25
JPH04504913A (en) 1992-08-27
CA2038912C (en) 1995-09-19
ATE122790T1 (en) 1995-06-15
WO1991017445A1 (en) 1991-11-14
ES2075436T3 (en) 1995-10-01
EP0482135B1 (en) 1995-05-17
DK0482135T3 (en) 1995-08-07

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