CA2011595A1 - Apparatus and method for detecting abnormalities in intravascular infusion - Google Patents

Apparatus and method for detecting abnormalities in intravascular infusion

Info

Publication number
CA2011595A1
CA2011595A1 CA2011595A CA2011595A CA2011595A1 CA 2011595 A1 CA2011595 A1 CA 2011595A1 CA 2011595 A CA2011595 A CA 2011595A CA 2011595 A CA2011595 A CA 2011595A CA 2011595 A1 CA2011595 A1 CA 2011595A1
Authority
CA
Canada
Prior art keywords
pressure
fluid
integral
determining
equilibrium
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
CA2011595A
Other languages
French (fr)
Other versions
CA2011595C (en
Inventor
David Doan
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.)
CareFusion 303 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 CA2011595A1 publication Critical patent/CA2011595A1/en
Application granted granted Critical
Publication of CA2011595C publication Critical patent/CA2011595C/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
    • 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
    • A61M5/168Means 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
    • A61M5/16831Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A61M5/16854Monitoring, detecting, signalling or eliminating infusion flow anomalies by monitoring line pressure
    • A61M5/16859Evaluation of pressure response, e.g. to an applied pulse
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00Surgery
    • Y10S128/12Pressure infusion

Abstract

The system and method for detecting abnormalities in infusion of parenteral fluid involves producing perturbation of fluid flow by varying the flow rate of the fluid with respect to an equilibrium flow rate, measuring the pressure level, and measuring the pressure of the fluid over a period of time, to determine equilibrium pressure and a pressure response of the fluid to the perturbation, determining an integral of the difference between the equilibrium pressure and the pressure response, determining resistance to fluid flow, determining a second integral of the difference between the pressure response and equilibrium pressure multiplied by time, and determining compliance by dividing the second integral by the first integral. Resistance and compliance values are displayed, and an alarm is generated when the resistance or compliance parameters fall outside of reference ranges.
CA002011595A 1989-03-13 1990-03-06 Apparatus and method for detecting abnormalities in intravascular infusion Expired - Lifetime CA2011595C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US322,291 1989-03-13
US07/322,291 US5087245A (en) 1989-03-13 1989-03-13 System and method for detecting abnormalities in intravascular infusion

Publications (2)

Publication Number Publication Date
CA2011595A1 true CA2011595A1 (en) 1990-09-13
CA2011595C CA2011595C (en) 1999-03-30

Family

ID=23254235

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002011595A Expired - Lifetime CA2011595C (en) 1989-03-13 1990-03-06 Apparatus and method for detecting abnormalities in intravascular infusion

Country Status (6)

Country Link
US (1) US5087245A (en)
EP (1) EP0387724B1 (en)
JP (1) JPH0649068B2 (en)
CA (1) CA2011595C (en)
DE (1) DE69004833T2 (en)
HK (1) HK1006005A1 (en)

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Also Published As

Publication number Publication date
EP0387724A2 (en) 1990-09-19
CA2011595C (en) 1999-03-30
DE69004833T2 (en) 1994-06-16
JPH03202072A (en) 1991-09-03
US5087245A (en) 1992-02-11
DE69004833D1 (en) 1994-01-13
EP0387724B1 (en) 1993-12-01
JPH0649068B2 (en) 1994-06-29
EP0387724A3 (en) 1990-11-28
HK1006005A1 (en) 1999-02-05

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