MX9600252A - Sistema y metodo de medicion instantanea del volumen, para medir en forma no invasiva los parametros de liquido. - Google Patents

Sistema y metodo de medicion instantanea del volumen, para medir en forma no invasiva los parametros de liquido.

Info

Publication number
MX9600252A
MX9600252A MX9600252A MX9600252A MX9600252A MX 9600252 A MX9600252 A MX 9600252A MX 9600252 A MX9600252 A MX 9600252A MX 9600252 A MX9600252 A MX 9600252A MX 9600252 A MX9600252 A MX 9600252A
Authority
MX
Mexico
Prior art keywords
liquid
pump
gas
measurement system
instantaneous volume
Prior art date
Application number
MX9600252A
Other languages
English (en)
Inventor
Warren J Packard
Kenneth E Pawlak
Original Assignee
Baxter Int
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 Baxter Int filed Critical Baxter Int
Publication of MX9600252A publication Critical patent/MX9600252A/es

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
    • 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
    • A61M5/16886—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 for measuring fluid flow rate, i.e. flowmeters
    • 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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
    • 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
    • A61M5/16804—Flow controllers
    • A61M5/16809—Flow controllers by repeated filling and emptying of an intermediate volume

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Vascular Medicine (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Reciprocating Pumps (AREA)
  • Measurement Of Radiation (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Se proporciona una técnica no invasiva y un sistema para medir el flujo del líquido impulsado por un diafragma flexible de una bomba de membrana (18). Se monitorea o se verifica de manera continua el flujo, la presion y/o la temperatura de un gas, tal como aire, usado para impulsar la bomba (18). El volumen instantáneo del líquido que es jalado dentro de, o fuera de, una cámara de la bomba (18) se puede calcular a partir de los valores medidos del gas usado para impulsar la bomba (18). Se usan censores o detectores (10, 12 y/o 14) para medir los valores relacionados con el gas. Los parámetros detectados se monitorean o verifican concurrentemente y se determina de manera continua la cantidad de gas que fluye hacia, y desde, el diafragma de la bomba de membrana (18) utilizada para mover el líquido dentro de una trayectoria líquida. Las mediciones luego se pueden usar para calcular la velocidad de flujo instantánea del líquido.
MX9600252A 1994-05-19 1996-01-16 Sistema y metodo de medicion instantanea del volumen, para medir en forma no invasiva los parametros de liquido. MX9600252A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/245,781 US5421208A (en) 1994-05-19 1994-05-19 Instantaneous volume measurement system and method for non-invasively measuring liquid parameters

Publications (1)

Publication Number Publication Date
MX9600252A true MX9600252A (es) 1998-11-30

Family

ID=22928047

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9600252A MX9600252A (es) 1994-05-19 1996-01-16 Sistema y metodo de medicion instantanea del volumen, para medir en forma no invasiva los parametros de liquido.

Country Status (13)

Country Link
US (1) US5421208A (es)
EP (1) EP0708666B1 (es)
JP (2) JPH09500813A (es)
AT (1) ATE210475T1 (es)
BR (1) BR9506252A (es)
CA (1) CA2165422A1 (es)
DE (1) DE69524538T2 (es)
DK (1) DK0708666T3 (es)
ES (1) ES2169757T3 (es)
MX (1) MX9600252A (es)
PT (1) PT708666E (es)
TW (1) TW312618B (es)
WO (1) WO1995032014A1 (es)

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Also Published As

Publication number Publication date
EP0708666B1 (en) 2001-12-12
WO1995032014A1 (en) 1995-11-30
TW312618B (es) 1997-08-11
JPH09500813A (ja) 1997-01-28
PT708666E (pt) 2002-05-31
JP2003293960A (ja) 2003-10-15
DE69524538D1 (de) 2002-01-24
ATE210475T1 (de) 2001-12-15
CA2165422A1 (en) 1995-11-20
DE69524538T2 (de) 2002-08-01
BR9506252A (pt) 1996-04-16
EP0708666A1 (en) 1996-05-01
US5421208A (en) 1995-06-06
ES2169757T3 (es) 2002-07-16
DK0708666T3 (da) 2002-03-18

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