ES2180292T3 - Dispositivo para la medicion de una tasa de flujo. - Google Patents

Dispositivo para la medicion de una tasa de flujo.

Info

Publication number
ES2180292T3
ES2180292T3 ES99915812T ES99915812T ES2180292T3 ES 2180292 T3 ES2180292 T3 ES 2180292T3 ES 99915812 T ES99915812 T ES 99915812T ES 99915812 T ES99915812 T ES 99915812T ES 2180292 T3 ES2180292 T3 ES 2180292T3
Authority
ES
Spain
Prior art keywords
pipe
pressure
liquid
fact
measuring
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 - Lifetime
Application number
ES99915812T
Other languages
English (en)
Inventor
Gilles Bos
Didier Ducournau
Guy Vitally
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.)
Corneal Industrie SA
Original Assignee
Corneal Industrie SA
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 Corneal Industrie SA filed Critical Corneal Industrie SA
Application granted granted Critical
Publication of ES2180292T3 publication Critical patent/ES2180292T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40Details of construction of the flow constriction devices
    • 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71Suction drainage systems
    • A61M1/77Suction-irrigation systems
    • 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71Suction drainage systems
    • A61M1/77Suction-irrigation systems
    • A61M1/777Determination of loss or gain of body fluids due to suction-irrigation, e.g. during surgery
    • 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • A61M2205/3334Measuring or controlling the flow rate

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pulmonology (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Surgery (AREA)
  • Measuring Volume Flow (AREA)
  • Measuring Fluid Pressure (AREA)
  • External Artificial Organs (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

Dispositivo de medición del caudal de un líquido que circula dentro de una tubería y que es extraído de o introducido dentro del cuerpo humano, que consta de dos medios de medición de presión, cada medio de medida de presión consta de una primera extremidad conectada respectivamente a una primera y una segunda porción de la mencionada tubería, y una segunda extremidad de conexión y un elemento de conducción cuyas extremidades están respectivamente conectadas a las segundas extremidades de conexión de los captadores indicados, caracterizado por el hecho de que: el mencionado elemento de conducción es sensiblemente rígido y presenta un diámetro interno (D) sensiblemente igual al de las porciones de tubería para producir un derramamiento laminar del mencionado líquido; por el hecho de que cada medio de medición de presión consta además de: - unos medios que forman una tubería que presenta un taladrado axial cuya cara interna de la pared constituye sensiblemente una solución de continuidad deltubo y que se extiende entre las dos extremidades de conexión, los mencionados medios constan de un orificio que atraviesa la pared y desemboca en la cara interna, y - un captador de presión para medir la presión del mencionado líquido dentro de la tubería, el mencionado captador presenta una superficie sometida a la presión del mencionado líquido, al menos una parte del mencionado captador está montada de modo estanco dentro del mencionado orificio, de tal forma que la mencionada superficie sensible constituye sensiblemente une solución de continuidad de la cara interna de la pared de los medios que forman una tubuladura, y por el hecho de que el mencionado dispositivo consta además de unos medios de tratamiento de las dos presiones medidas para deducir de ello un caudal.
ES99915812T 1998-04-24 1999-04-22 Dispositivo para la medicion de una tasa de flujo. Expired - Lifetime ES2180292T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9805189A FR2777992B1 (fr) 1998-04-24 1998-04-24 Dispositif de mesure de debit

Publications (1)

Publication Number Publication Date
ES2180292T3 true ES2180292T3 (es) 2003-02-01

Family

ID=9525659

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99915812T Expired - Lifetime ES2180292T3 (es) 1998-04-24 1999-04-22 Dispositivo para la medicion de una tasa de flujo.

Country Status (7)

Country Link
EP (1) EP1073884B1 (es)
JP (1) JP2002513140A (es)
CA (1) CA2330068A1 (es)
DE (1) DE69902250T2 (es)
ES (1) ES2180292T3 (es)
FR (1) FR2777992B1 (es)
WO (1) WO1999056090A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011103261A1 (de) * 2011-05-26 2012-11-29 Fresenius Medical Care Deutschland Gmbh Verfahren zum Bestimmen eines Volumenstroms in einer Blutbehandlungsvorrichtung, Recheneinrichtung und Blutbehandlungsvorrichtung
US9295770B2 (en) 2011-05-26 2016-03-29 Fresenius Medical Care Deutschland Gmbh Method for determining a volume flow in a blood treatment apparatus, calculating device and blood treatment apparatus
CN115282465B (zh) * 2022-08-16 2023-10-10 心擎医疗(苏州)股份有限公司 基于血液压力的在线式即时反馈控制的体外式血泵系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467388A1 (fr) * 1979-10-12 1981-04-17 Thomson Csf Dispositif de mesure de debit d'un fluide et systeme senseur du debit d'air dans un moteur a combustion interne mettant en oeuvre un tel dispositif
DE4308313A1 (de) * 1993-03-16 1994-09-22 Werner Haunold Vorrichtung zur Bestimmung der Durchflußrate eines fluiden Mediums nach dem Differenzdruckprinzip
US5410916A (en) * 1994-06-24 1995-05-02 Honeywell Inc. Flowthrough pressure sensor

Also Published As

Publication number Publication date
DE69902250T2 (de) 2002-12-12
FR2777992A1 (fr) 1999-10-29
JP2002513140A (ja) 2002-05-08
CA2330068A1 (en) 1999-11-04
DE69902250D1 (de) 2002-08-29
EP1073884B1 (fr) 2002-07-24
FR2777992B1 (fr) 2000-07-21
WO1999056090A1 (fr) 1999-11-04
EP1073884A1 (fr) 2001-02-07

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