CA2025519A1 - Free flow prevention system for infusion pump - Google Patents

Free flow prevention system for infusion pump

Info

Publication number
CA2025519A1
CA2025519A1 CA002025519A CA2025519A CA2025519A1 CA 2025519 A1 CA2025519 A1 CA 2025519A1 CA 002025519 A CA002025519 A CA 002025519A CA 2025519 A CA2025519 A CA 2025519A CA 2025519 A1 CA2025519 A1 CA 2025519A1
Authority
CA
Canada
Prior art keywords
tubing
clamp
slot
width
infusion pump
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
CA002025519A
Other languages
French (fr)
Other versions
CA2025519C (en
Inventor
Larry H. Dodge
Stanford C. Stone
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.)
Graseby Medical Ltd
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of CA2025519A1 publication Critical patent/CA2025519A1/en
Application granted granted Critical
Publication of CA2025519C publication Critical patent/CA2025519C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/28Clamping means for squeezing flexible tubes, e.g. roller clamps
    • A61M39/286Wedge clamps, e.g. roller clamps with inclined guides
    • A61M39/287Wedge formed by a slot having varying width, e.g. slide clamps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/28Clamping means for squeezing flexible tubes, e.g. roller clamps
    • A61M39/281Automatic tube cut-off devices, e.g. squeezing tube on detection of air
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14212Pumping with an aspiration and an expulsion action
    • A61M5/14228Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member

Abstract

A free flow prevention system for preventing free flow of fluid through IV tubing (12) when the tubing (12) is disconnected from an infusion pump (10). A flexible clamp (20, 20A) is provided having a pair of clamping arms (24, 24A), which define a variable width slot (26, 26A) for receiving the IV tubing (12). The IV tubing (12) may be moved along the slot (26, 26A) between a first position (28) (Figure 4) wherein the width of the slot (26, 26A) is sufficient to permit the clamp (20, 20A) to be positioned longitudinally along the IV tubing (12), and a second position (30) wherein the width of the slot (26, 26A) is normally less than the width of the slot (26, 26A) at the first position (28). The clamping arms (24, 24A) are resiliently biased to a closed position (Figure 2) wherein the IV tubing (12) is squeezed when in its second position (30) to close the lumen of the tubing (12) to prevent fluid flow. A clamp-receiving passageway (18, 188) and clamp-opening wedge (22) are provided on the infusion pump (10). The clamp-opening wedge (22) is movable relative to a clamp (20, 20A) received in the passageway (18, 18B) to an operating position (Figure 3), wherein the wedge (22) moves the arms (24, 24A) of the flexible clamp (20, 20A) against their bias to an open position (Figure 3) wherein the lumen of the IV tubing (12) is allowed to open to permit fluid flow during operation of the pump (10).
4:1.22
CA002025519A 1989-10-20 1990-09-17 Free flow prevention system for infusion pump Expired - Lifetime CA2025519C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/424,386 US5017192A (en) 1989-10-20 1989-10-20 Free flow prevention system for infusion pump
US424,386 1989-10-20

Publications (2)

Publication Number Publication Date
CA2025519A1 true CA2025519A1 (en) 1991-04-21
CA2025519C CA2025519C (en) 2002-11-12

Family

ID=23682448

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002025519A Expired - Lifetime CA2025519C (en) 1989-10-20 1990-09-17 Free flow prevention system for infusion pump

Country Status (7)

Country Link
US (1) US5017192A (en)
EP (1) EP0423978B1 (en)
JP (1) JPH03140164A (en)
AU (1) AU626460B2 (en)
CA (1) CA2025519C (en)
DE (1) DE69016347T2 (en)
HK (1) HK1006287A1 (en)

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US7976518B2 (en) 2005-01-13 2011-07-12 Corpak Medsystems, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
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US7611498B2 (en) * 2006-05-18 2009-11-03 Codan Holding Gmbh Arrangement for the coupling of an intravenous tube with infusion pump
US8105282B2 (en) 2007-07-13 2012-01-31 Iradimed Corporation System and method for communication with an infusion device
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JP5903087B2 (en) * 2013-10-24 2016-04-13 本田技研工業株式会社 Spring clip and car fender panel mounting structure
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Also Published As

Publication number Publication date
DE69016347T2 (en) 1995-08-10
CA2025519C (en) 2002-11-12
EP0423978A3 (en) 1991-11-21
DE69016347D1 (en) 1995-03-09
EP0423978B1 (en) 1995-01-25
HK1006287A1 (en) 1999-02-19
JPH03140164A (en) 1991-06-14
EP0423978A2 (en) 1991-04-24
AU6303390A (en) 1991-04-26
US5017192A (en) 1991-05-21
AU626460B2 (en) 1992-07-30

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202