CA2292660A1 - Temperature compensation system for regulating flow through tubing in a pump - Google Patents

Temperature compensation system for regulating flow through tubing in a pump Download PDF

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Publication number
CA2292660A1
CA2292660A1 CA002292660A CA2292660A CA2292660A1 CA 2292660 A1 CA2292660 A1 CA 2292660A1 CA 002292660 A CA002292660 A CA 002292660A CA 2292660 A CA2292660 A CA 2292660A CA 2292660 A1 CA2292660 A1 CA 2292660A1
Authority
CA
Canada
Prior art keywords
tubing
pump
housing
sensor
temperature
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
CA002292660A
Other languages
French (fr)
Other versions
CA2292660C (en
Inventor
Kenneth D. Briggs
Dean C. Pryce
Russell M. Sampson
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.)
Hospira Inc
Original Assignee
Abbott Laboratories
Kenneth D. Briggs
Dean C. Pryce
Russell M. Sampson
Hospira, 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 Abbott Laboratories, Kenneth D. Briggs, Dean C. Pryce, Russell M. Sampson, Hospira, Inc. filed Critical Abbott Laboratories
Publication of CA2292660A1 publication Critical patent/CA2292660A1/en
Application granted granted Critical
Publication of CA2292660C publication Critical patent/CA2292660C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0676—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on flow sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/09—Flow through the pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Reciprocating Pumps (AREA)
  • Flow Control (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

A peristaltic pump is provided with a housing, a pump head in the housing, and a receiving path defined along a housing and pump head for receiving tubing. Two spaced-apart temperature sensors are provided.
One temperature sensor is located adjacent the tubing in a heat conduction path along which heat flows between the sensor and the tubing. The other sensor is located outside of the heat conduction path for sensing ambient temperature. The pump operating speed is adjusted as a function of the sensed temperatures. This accommodates the temperature-dependent rate of recovery of the tubing from its peristaltically deformed configuration to its original configuration.
CA002292660A 1997-06-12 1998-06-10 Temperature compensation system for regulating flow through tubing in a pump Expired - Fee Related CA2292660C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/873,471 US6503221B1 (en) 1997-06-12 1997-06-12 Temperature compensation system for regulating flow through tubing in a pump
US08/873,471 1997-06-12
PCT/US1998/011916 WO1998057064A1 (en) 1997-06-12 1998-06-10 Temperature compensation system for regulating flow through tubing in a pump

Publications (2)

Publication Number Publication Date
CA2292660A1 true CA2292660A1 (en) 1998-12-17
CA2292660C CA2292660C (en) 2007-11-06

Family

ID=25361700

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002292660A Expired - Fee Related CA2292660C (en) 1997-06-12 1998-06-10 Temperature compensation system for regulating flow through tubing in a pump

Country Status (9)

Country Link
US (2) US6503221B1 (en)
EP (1) EP0988451B1 (en)
JP (1) JP4270474B2 (en)
AT (1) ATE287501T1 (en)
AU (1) AU736882B2 (en)
CA (1) CA2292660C (en)
DE (1) DE69828689T2 (en)
ES (1) ES2236911T3 (en)
WO (1) WO1998057064A1 (en)

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Also Published As

Publication number Publication date
US6869425B2 (en) 2005-03-22
US20020147425A1 (en) 2002-10-10
ATE287501T1 (en) 2005-02-15
EP0988451A1 (en) 2000-03-29
AU736882B2 (en) 2001-08-02
DE69828689T2 (en) 2006-03-16
US6503221B1 (en) 2003-01-07
CA2292660C (en) 2007-11-06
JP4270474B2 (en) 2009-06-03
WO1998057064A1 (en) 1998-12-17
DE69828689D1 (en) 2005-02-24
ES2236911T3 (en) 2005-07-16
JP2002504971A (en) 2002-02-12
AU7956898A (en) 1998-12-30
EP0988451B1 (en) 2005-01-19

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Effective date: 20150610