DE69022449D1 - Nach dem thermischen Laufzeitprinzip arbeitendes Durchflussmesssystem. - Google Patents

Nach dem thermischen Laufzeitprinzip arbeitendes Durchflussmesssystem.

Info

Publication number
DE69022449D1
DE69022449D1 DE69022449T DE69022449T DE69022449D1 DE 69022449 D1 DE69022449 D1 DE 69022449D1 DE 69022449 T DE69022449 T DE 69022449T DE 69022449 T DE69022449 T DE 69022449T DE 69022449 D1 DE69022449 D1 DE 69022449D1
Authority
DE
Germany
Prior art keywords
thermal
system based
measuring system
flow measuring
runtime principle
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.)
Expired - Fee Related
Application number
DE69022449T
Other languages
English (en)
Other versions
DE69022449T2 (de
Inventor
Jack Goldberg
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 Medical Systems 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 Medical Systems Inc filed Critical Ivac Medical Systems Inc
Publication of DE69022449D1 publication Critical patent/DE69022449D1/de
Application granted granted Critical
Publication of DE69022449T2 publication Critical patent/DE69022449T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/7044—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter using thermal tracers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/7084—Measuring the time taken to traverse a fixed distance using thermal detecting arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
DE69022449T 1989-03-06 1990-03-05 Nach dem thermischen Laufzeitprinzip arbeitendes Durchflussmesssystem. Expired - Fee Related DE69022449T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/319,353 US4938079A (en) 1989-03-06 1989-03-06 Thermal transit time flow measurement system

Publications (2)

Publication Number Publication Date
DE69022449D1 true DE69022449D1 (de) 1995-10-26
DE69022449T2 DE69022449T2 (de) 1996-05-02

Family

ID=23241895

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022449T Expired - Fee Related DE69022449T2 (de) 1989-03-06 1990-03-05 Nach dem thermischen Laufzeitprinzip arbeitendes Durchflussmesssystem.

Country Status (5)

Country Link
US (1) US4938079A (de)
EP (1) EP0386670B1 (de)
JP (1) JPH0781894B2 (de)
CA (1) CA2011439C (de)
DE (1) DE69022449T2 (de)

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US8065924B2 (en) * 2008-05-23 2011-11-29 Hospira, Inc. Cassette for differential pressure based medication delivery flow sensor assembly for medication delivery monitoring and method of making the same
US7819838B2 (en) * 2008-09-02 2010-10-26 Hospira, Inc. Cassette for use in a medication delivery flow sensor assembly and method of making the same
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US9186457B2 (en) 2011-04-27 2015-11-17 Freddie Eng Hwee Lee Intravenous infusion monitoring apparatus, system and method
US8656770B2 (en) * 2011-06-30 2014-02-25 Baker Hughes Incorporated Electromagnetically heated thermal flowmeter for wellbore fluids
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WO2014022513A1 (en) 2012-07-31 2014-02-06 Hospira, Inc. Patient care system for critical medications
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SG2012080636A (en) * 2012-10-31 2014-05-29 Eng Hwee Freddie Lee Intravenous (iv) infusion monitoring method and system
US10046112B2 (en) 2013-05-24 2018-08-14 Icu Medical, Inc. Multi-sensor infusion system for detecting air or an occlusion in the infusion system
WO2014194089A1 (en) 2013-05-29 2014-12-04 Hospira, Inc. Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system
ES2845748T3 (es) 2013-05-29 2021-07-27 Icu Medical Inc Sistema de infusión y método de uso que impiden la sobresaturación de un convertidor analógico-digital
US20150133861A1 (en) 2013-11-11 2015-05-14 Kevin P. McLennan Thermal management system and method for medical devices
US10342917B2 (en) 2014-02-28 2019-07-09 Icu Medical, Inc. Infusion system and method which utilizes dual wavelength optical air-in-line detection
CA2947045C (en) 2014-05-29 2022-10-18 Hospira, Inc. Infusion system and pump with configurable closed loop delivery rate catch-up
US10143795B2 (en) 2014-08-18 2018-12-04 Icu Medical, Inc. Intravenous pole integrated power, control, and communication system and method for an infusion pump
US11344668B2 (en) 2014-12-19 2022-05-31 Icu Medical, Inc. Infusion system with concurrent TPN/insulin infusion
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US10850024B2 (en) 2015-03-02 2020-12-01 Icu Medical, Inc. Infusion system, device, and method having advanced infusion features
ES2809505T3 (es) 2015-05-26 2021-03-04 Icu Medical Inc Dispositivo de administración de fluido de infusión desechable para la administración programable de fármacos de gran volumen
US11246985B2 (en) 2016-05-13 2022-02-15 Icu Medical, Inc. Infusion pump system and method with common line auto flush
US11324888B2 (en) 2016-06-10 2022-05-10 Icu Medical, Inc. Acoustic flow sensor for continuous medication flow measurements and feedback control of infusion
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EP3585459A1 (de) * 2017-02-23 2020-01-01 onefusion AG Perfusionssysteme und strömungssensoren zur verwendung mit perfusionssystemen
JP6951663B2 (ja) * 2017-12-26 2021-10-20 住友電装株式会社 コネクタ
US10089055B1 (en) 2017-12-27 2018-10-02 Icu Medical, Inc. Synchronized display of screen content on networked devices
KR102159087B1 (ko) * 2019-02-22 2020-09-23 한국기계연구원 전동식 약물주입펌프용 유량 측정장치 및 이를 이용한 유량 측정방법
USD939079S1 (en) 2019-08-22 2021-12-21 Icu Medical, Inc. Infusion pump
US11278671B2 (en) 2019-12-04 2022-03-22 Icu Medical, Inc. Infusion pump with safety sequence keypad
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US11135360B1 (en) 2020-12-07 2021-10-05 Icu Medical, Inc. Concurrent infusion with common line auto flush

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Also Published As

Publication number Publication date
CA2011439A1 (en) 1990-09-06
US4938079A (en) 1990-07-03
EP0386670B1 (de) 1995-09-20
CA2011439C (en) 1997-07-01
EP0386670A3 (de) 1992-03-18
JPH0781894B2 (ja) 1995-09-06
JPH0333620A (ja) 1991-02-13
DE69022449T2 (de) 1996-05-02
EP0386670A2 (de) 1990-09-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: IVAC MEDICAL SYSTEMS, INC. (N.D.GES.D. STAATES DEL

8327 Change in the person/name/address of the patent owner

Owner name: ALARIS MEDICAL SYSTEMS, INC. (N.D. GESETZEN DES ST

8339 Ceased/non-payment of the annual fee