CA2230844A1 - Upstream occlusion detection system - Google Patents

Upstream occlusion detection system

Info

Publication number
CA2230844A1
CA2230844A1 CA002230844A CA2230844A CA2230844A1 CA 2230844 A1 CA2230844 A1 CA 2230844A1 CA 002230844 A CA002230844 A CA 002230844A CA 2230844 A CA2230844 A CA 2230844A CA 2230844 A1 CA2230844 A1 CA 2230844A1
Authority
CA
Canada
Prior art keywords
pressure
fluid
upstream
segment
pressure difference
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
CA002230844A
Other languages
French (fr)
Other versions
CA2230844C (en
Inventor
Robert D. Butterfield
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
Ivac Holdings, Inc.
Robert D. Butterfield
Ivac Corporation
Ivac Medical Systems, Inc.
Alaris Medical Systems, Inc.
Cardinal Health 303, Inc.
Carefusion 303, 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 Ivac Holdings, Inc., Robert D. Butterfield, Ivac Corporation, Ivac Medical Systems, Inc., Alaris Medical Systems, Inc., Cardinal Health 303, Inc., Carefusion 303, Inc. filed Critical Ivac Holdings, Inc.
Publication of CA2230844A1 publication Critical patent/CA2230844A1/en
Application granted granted Critical
Publication of CA2230844C publication Critical patent/CA2230844C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61M5/16859—Evaluation of pressure response, e.g. to an applied pulse
    • 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
    • A61M2005/16863—Occlusion detection
    • A61M2005/16872—Upstream occlusion sensors

Abstract

A pumping segment of a fluid line alternately in fluid communication with the upstream and downstream portions of the fluid line connects a fluid supply to a fluid receiver. A pressure sensor located downstream of the segment monitors the pressure during the segment's communication with the upstream and downstream ends. The pressure difference is used to establish a pressure threshold against which the average pressure is compared to determine if an upstream occlusion exists.
Should the average pressure fall within a cautionary zone, the pump is reversed to examine the pressure difference once again. Based on the pressure difference during thre reversal, a pressure threshold line may be adjusted thereby adapting to fluid administration conditions.
CA002230844A 1995-08-31 1996-08-29 Upstream occlusion detection system Expired - Lifetime CA2230844C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/522,001 US5827223A (en) 1995-08-31 1995-08-31 Upstream occulsion detection system
US08/522,001 1995-08-31
PCT/US1996/013881 WO1997007843A1 (en) 1995-08-31 1996-08-29 Upstream occlusion detection system

Publications (2)

Publication Number Publication Date
CA2230844A1 true CA2230844A1 (en) 1997-03-06
CA2230844C CA2230844C (en) 2003-02-04

Family

ID=24079023

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002230844A Expired - Lifetime CA2230844C (en) 1995-08-31 1996-08-29 Upstream occlusion detection system

Country Status (9)

Country Link
US (2) US5827223A (en)
EP (1) EP0847288B1 (en)
JP (1) JP3670293B2 (en)
AT (1) ATE280600T1 (en)
CA (1) CA2230844C (en)
DE (2) DE847288T1 (en)
ES (1) ES2123478T3 (en)
HK (1) HK1009407A1 (en)
WO (1) WO1997007843A1 (en)

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HK1009407A1 (en) 1999-08-13
CA2230844C (en) 2003-02-04
ES2123478T1 (en) 1999-01-16
DE69633731D1 (en) 2004-12-02
US6358225B1 (en) 2002-03-19
JP3670293B2 (en) 2005-07-13
DE847288T1 (en) 1998-11-12
WO1997007843A1 (en) 1997-03-06
DE69633731T2 (en) 2005-11-10
ATE280600T1 (en) 2004-11-15
EP0847288B1 (en) 2004-10-27
ES2123478T3 (en) 2005-07-01
EP0847288A1 (en) 1998-06-17
JPH11500338A (en) 1999-01-12
US5827223A (en) 1998-10-27

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