CA2187094A1 - Rapid response occlusion detector for a medication infusion pump - Google Patents

Rapid response occlusion detector for a medication infusion pump

Info

Publication number
CA2187094A1
CA2187094A1 CA002187094A CA2187094A CA2187094A1 CA 2187094 A1 CA2187094 A1 CA 2187094A1 CA 002187094 A CA002187094 A CA 002187094A CA 2187094 A CA2187094 A CA 2187094A CA 2187094 A1 CA2187094 A1 CA 2187094A1
Authority
CA
Canada
Prior art keywords
medication
infusion pump
medication infusion
rapid response
occlusion detector
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
CA002187094A
Other languages
French (fr)
Other versions
CA2187094C (en
Inventor
William G. Feldmann
Vernon J. Scherbenske
Craig M. Henning
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.)
Medtronic Minimed Inc
Original Assignee
William G. Feldmann
Vernon J. Scherbenske
Craig M. Henning
Minimed Inc.
Medtronic Minimed, 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 William G. Feldmann, Vernon J. Scherbenske, Craig M. Henning, Minimed Inc., Medtronic Minimed, Inc. filed Critical William G. Feldmann
Publication of CA2187094A1 publication Critical patent/CA2187094A1/en
Application granted granted Critical
Publication of CA2187094C publication Critical patent/CA2187094C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A61M5/16854—Monitoring, detecting, signalling or eliminating infusion flow anomalies by monitoring line pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1456—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir

Abstract

An improved occlusion detector is provided in a medication infusion pump (10) to monitor medication delivery to a patient, and to provide an early alarm in the event of medication nondelivery. The detector comprises a force sensor (52) and related control circuit for reading and comparing the pressure applied to the medication at the time of pump operation to administer a dose to the patient, with the same pressure at a later point in time preceding the next dose. If a difference between the pressure readings is less than a predetermined value, an occlusion of the medication delivery line is indicated and an alarm is activated.
CA002187094A 1995-03-03 1996-02-20 Rapid response occlusion detector for a medication infusion pump Expired - Fee Related CA2187094C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/397,797 US5647853A (en) 1995-03-03 1995-03-03 Rapid response occlusion detector for a medication infusion pump
US08/397,797 1995-03-03
PCT/US1996/002199 WO1996027398A1 (en) 1995-03-03 1996-02-20 Rapid response occlusion detector for a medication infusion pump

Publications (2)

Publication Number Publication Date
CA2187094A1 true CA2187094A1 (en) 1996-09-12
CA2187094C CA2187094C (en) 2006-01-31

Family

ID=23572659

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002187094A Expired - Fee Related CA2187094C (en) 1995-03-03 1996-02-20 Rapid response occlusion detector for a medication infusion pump

Country Status (6)

Country Link
US (1) US5647853A (en)
EP (1) EP0758253B1 (en)
JP (1) JP4188414B2 (en)
CA (1) CA2187094C (en)
DE (1) DE69625294T2 (en)
WO (1) WO1996027398A1 (en)

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US5647853A (en) 1997-07-15
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