ATE336273T1 - Vorrichtung und verfahren zur luftblasenerkennung - Google Patents

Vorrichtung und verfahren zur luftblasenerkennung

Info

Publication number
ATE336273T1
ATE336273T1 AT98948318T AT98948318T ATE336273T1 AT E336273 T1 ATE336273 T1 AT E336273T1 AT 98948318 T AT98948318 T AT 98948318T AT 98948318 T AT98948318 T AT 98948318T AT E336273 T1 ATE336273 T1 AT E336273T1
Authority
AT
Austria
Prior art keywords
agent
concentration value
primary
signal values
determined
Prior art date
Application number
AT98948318T
Other languages
English (en)
Inventor
Robert D Butterfield
Allen B Farquhar
Original Assignee
Cardinal Health 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 Cardinal Health 303 Inc filed Critical Cardinal Health 303 Inc
Application granted granted Critical
Publication of ATE336273T1 publication Critical patent/ATE336273T1/de

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
AT98948318T 1997-09-19 1998-09-18 Vorrichtung und verfahren zur luftblasenerkennung ATE336273T1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE336273T1 true ATE336273T1 (de) 2006-09-15

Family

ID=25464392

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98948318T ATE336273T1 (de) 1997-09-19 1998-09-18 Vorrichtung und verfahren zur luftblasenerkennung

Country Status (9)

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

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Also Published As

Publication number Publication date
EP1015053B1 (de) 2006-08-16
US7141037B2 (en) 2006-11-28
JP2001517498A (ja) 2001-10-09
CA2304216C (en) 2007-07-31
US20080208484A1 (en) 2008-08-28
ES2274582T3 (es) 2007-05-16
US8082112B2 (en) 2011-12-20
EP1015053A1 (de) 2000-07-05
DE69835599D1 (de) 2006-09-28
WO1999015216A1 (en) 1999-04-01
US6616633B1 (en) 2003-09-09
US20050192529A1 (en) 2005-09-01
DE69835599T2 (de) 2007-08-23
JP4268334B2 (ja) 2009-05-27
HK1029761A1 (en) 2001-04-12
CA2304216A1 (en) 1999-04-01

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