CA2192196A1 - Modified siphons for improved metering precision - Google Patents

Modified siphons for improved metering precision

Info

Publication number
CA2192196A1
CA2192196A1 CA002192196A CA2192196A CA2192196A1 CA 2192196 A1 CA2192196 A1 CA 2192196A1 CA 002192196 A CA002192196 A CA 002192196A CA 2192196 A CA2192196 A CA 2192196A CA 2192196 A1 CA2192196 A1 CA 2192196A1
Authority
CA
Canada
Prior art keywords
chamber
siphons
metering precision
improved metering
siphon
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
CA002192196A
Other languages
French (fr)
Other versions
CA2192196C (en
Inventor
Anne R. Kopf-Sill
Carol T. Schembri
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.)
Abaxis 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 CA2192196A1 publication Critical patent/CA2192196A1/en
Application granted granted Critical
Publication of CA2192196C publication Critical patent/CA2192196C/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
    • 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
    • G01N21/07—Centrifugal type cuvettes

Abstract

The present invention provides centrifu-gal force rotors for delivering a premeasured volume of liquid to a chamber in the rotor. In particular the rotors comprise siphons (134) for delivering a premeasured volume of liquid be-tween a first and a second chamber (136) in the rotor. The siphons (134) of the invention are designed such that the inlet (138) of the siphon on the first chamber is radially outward of the siphon outlet (139) on the second cham-ber (136). The first chamber is emptied to a level equivalent to the radial position of the siphon outlet (139).
CA002192196A 1994-06-06 1995-06-05 Modified siphons for improved metering precision Expired - Lifetime CA2192196C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US25440694A 1994-06-06 1994-06-06
US08/254,406 1994-06-06
PCT/US1995/007145 WO1995033986A1 (en) 1994-06-06 1995-06-05 Modified siphons for improved metering precision

Publications (2)

Publication Number Publication Date
CA2192196A1 true CA2192196A1 (en) 1995-12-14
CA2192196C CA2192196C (en) 2004-11-23

Family

ID=22964194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002192196A Expired - Lifetime CA2192196C (en) 1994-06-06 1995-06-05 Modified siphons for improved metering precision

Country Status (4)

Country Link
EP (1) EP0764266A4 (en)
JP (3) JPH10501340A (en)
CA (1) CA2192196C (en)
WO (1) WO1995033986A1 (en)

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CA3043100C (en) * 2011-03-08 2022-03-01 Universite Laval Fluidic centripetal device
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US9067205B2 (en) 2011-05-18 2015-06-30 3M Innovative Properties Company Systems and methods for valving on a sample processing device
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US9933348B2 (en) 2011-12-08 2018-04-03 Biosurfit, S.A. Sequential aliqoting and determination of an indicator of sedimentation rate
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Also Published As

Publication number Publication date
JPH10501340A (en) 1998-02-03
CA2192196C (en) 2004-11-23
WO1995033986A1 (en) 1995-12-14
JP4178169B2 (en) 2008-11-12
JP2008157960A (en) 2008-07-10
EP0764266A4 (en) 1998-08-05
EP0764266A1 (en) 1997-03-26
JP2006317467A (en) 2006-11-24

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Effective date: 20150605