CA2222116A1 - Method and apparatus for determining a degree of recirculation flow of a fluid - Google Patents

Method and apparatus for determining a degree of recirculation flow of a fluid

Info

Publication number
CA2222116A1
CA2222116A1 CA 2222116 CA2222116A CA2222116A1 CA 2222116 A1 CA2222116 A1 CA 2222116A1 CA 2222116 CA2222116 CA 2222116 CA 2222116 A CA2222116 A CA 2222116A CA 2222116 A1 CA2222116 A1 CA 2222116A1
Authority
CA
Canada
Prior art keywords
fluid
degree
recirculation flow
determining
electrical conductivity
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
CA 2222116
Other languages
French (fr)
Other versions
CA2222116C (en
Inventor
George W. Buffaloe, Iv
Francis T. Ogawa
James M. Brugger
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.)
Gambro Renal Products Inc
Original Assignee
Cobe Laboratories 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 Cobe Laboratories Inc filed Critical Cobe Laboratories Inc
Priority claimed from CA002106019A external-priority patent/CA2106019C/en
Publication of CA2222116A1 publication Critical patent/CA2222116A1/en
Application granted granted Critical
Publication of CA2222116C publication Critical patent/CA2222116C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

A method for quantitatively determining a degree of recirculation flow within a zone of a vessel into which a first fluid having a first electrical conductivity is being inserted and from which a second fluid having a second electrical conductivity is simultaneously being withdrawn, comprising:
altering the electrical conductivity of the first fluid;
measuring the electrical conductivity of the first fluid after the conductivity is altered and before the first fluid is inserted into the zone of the vessel; measuring the electrical conductivity of the second fluid after it is withdrawn from the zone of the vessel; and comparing the first fluid with the conductivity of the second fluid to quantitatively determine the degree of recirculation flow in the zone of the vessel.
CA002222116A 1992-09-30 1993-09-13 Method and apparatus for determining a degree of recirculation flow of a fluid Expired - Fee Related CA2222116C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US95458492A 1992-09-30 1992-09-30
US07/954,584 1992-09-30
CA002106019A CA2106019C (en) 1992-09-30 1993-09-13 Method and apparatus for determining a difference in electrical conductivity of at least two fluids

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002106019A Division CA2106019C (en) 1992-09-30 1993-09-13 Method and apparatus for determining a difference in electrical conductivity of at least two fluids

Publications (2)

Publication Number Publication Date
CA2222116A1 true CA2222116A1 (en) 1994-03-31
CA2222116C CA2222116C (en) 1999-11-02

Family

ID=31716343

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002222116A Expired - Fee Related CA2222116C (en) 1992-09-30 1993-09-13 Method and apparatus for determining a degree of recirculation flow of a fluid
CA002222248A Expired - Fee Related CA2222248C (en) 1992-09-30 1993-09-13 A tubing set adapted for use with an apparatus for determining a degree of recirculation flow

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002222248A Expired - Fee Related CA2222248C (en) 1992-09-30 1993-09-13 A tubing set adapted for use with an apparatus for determining a degree of recirculation flow

Country Status (1)

Country Link
CA (2) CA2222116C (en)

Also Published As

Publication number Publication date
CA2222248A1 (en) 1994-03-31
CA2222116C (en) 1999-11-02
CA2222248C (en) 1999-06-29

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