CA2304216A1 - Apparatus and method for air-in-line detection - Google Patents

Apparatus and method for air-in-line detection Download PDF

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Publication number
CA2304216A1
CA2304216A1 CA002304216A CA2304216A CA2304216A1 CA 2304216 A1 CA2304216 A1 CA 2304216A1 CA 002304216 A CA002304216 A CA 002304216A CA 2304216 A CA2304216 A CA 2304216A CA 2304216 A1 CA2304216 A1 CA 2304216A1
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CA
Canada
Prior art keywords
agent
concentration value
primary
signal values
determined
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
CA002304216A
Other languages
French (fr)
Other versions
CA2304216C (en
Inventor
Robert D. Butterfield
Allen B. Farquhar
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
Alaris Medical Systems, Inc.
Robert D. Butterfield
Allen B. Farquhar
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 Alaris Medical Systems, Inc., Robert D. Butterfield, Allen B. Farquhar, Cardinal Health 303, Inc., Carefusion 303, Inc. filed Critical Alaris Medical Systems, Inc.
Publication of CA2304216A1 publication Critical patent/CA2304216A1/en
Application granted granted Critical
Publication of CA2304216C publication Critical patent/CA2304216C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates
    • 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
    • A61M5/14212—Pumping with an aspiration and an expulsion action
    • A61M5/14228—Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
    • 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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
    • A61M5/365—Air detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/024—Mixtures
    • G01N2291/02433—Gases in liquids, e.g. bubbles, foams
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/13—Infusion monitoring

Abstract

The concentration of air or other agents in a fluid delivery line is determined by monitoring agent signals and processing those agent signals along with information regarding the age of each agent signal. The processor determines a primary agent concentration value based on the received agent signal values, with the primary agent concentration value determined by giving greater weight to more recent agent signal values. Where the primary agent concentration value exceeds a primary threshold value, an alarm signal may be activated.
The processor also may determine a secondary agent concentration value, which may be determined from the actual agent signal values instead of the weighted agent signal values. Where the secondary agent concentration value exceeds a secondary threshold value, an alarm signal may be activated.
CA002304216A 1997-09-19 1998-09-18 Apparatus and method for air-in-line detection Expired - Lifetime CA2304216C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/933,709 US6616633B1 (en) 1997-09-19 1997-09-19 Apparatus and method for air-in-line detection
US08/933,709 1997-09-19
PCT/US1998/019454 WO1999015216A1 (en) 1997-09-19 1998-09-18 Apparatus and method for air-in-line detection

Publications (2)

Publication Number Publication Date
CA2304216A1 true CA2304216A1 (en) 1999-04-01
CA2304216C CA2304216C (en) 2007-07-31

Family

ID=25464392

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002304216A Expired - Lifetime CA2304216C (en) 1997-09-19 1998-09-18 Apparatus and method for air-in-line detection

Country Status (9)

Country Link
US (3) US6616633B1 (en)
EP (1) EP1015053B1 (en)
JP (1) JP4268334B2 (en)
AT (1) ATE336273T1 (en)
CA (1) CA2304216C (en)
DE (1) DE69835599T2 (en)
ES (1) ES2274582T3 (en)
HK (1) HK1029761A1 (en)
WO (1) WO1999015216A1 (en)

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Also Published As

Publication number Publication date
JP4268334B2 (en) 2009-05-27
US6616633B1 (en) 2003-09-09
US20050192529A1 (en) 2005-09-01
US7141037B2 (en) 2006-11-28
US20080208484A1 (en) 2008-08-28
JP2001517498A (en) 2001-10-09
DE69835599D1 (en) 2006-09-28
HK1029761A1 (en) 2001-04-12
CA2304216C (en) 2007-07-31
DE69835599T2 (en) 2007-08-23
EP1015053A1 (en) 2000-07-05
ATE336273T1 (en) 2006-09-15
ES2274582T3 (en) 2007-05-16
WO1999015216A1 (en) 1999-04-01
EP1015053B1 (en) 2006-08-16
US8082112B2 (en) 2011-12-20

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