DK0471000T3 - Forbedret system til strømningsregulering ved trykmåling - Google Patents

Forbedret system til strømningsregulering ved trykmåling

Info

Publication number
DK0471000T3
DK0471000T3 DK90907593T DK90907593T DK0471000T3 DK 0471000 T3 DK0471000 T3 DK 0471000T3 DK 90907593 T DK90907593 T DK 90907593T DK 90907593 T DK90907593 T DK 90907593T DK 0471000 T3 DK0471000 T3 DK 0471000T3
Authority
DK
Denmark
Prior art keywords
container
fluid
control system
flow control
pressure measurement
Prior art date
Application number
DK90907593T
Other languages
English (en)
Inventor
Dean L Kamen
Original Assignee
Deka Products Lp
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 Deka Products Lp filed Critical Deka Products Lp
Application granted granted Critical
Publication of DK0471000T3 publication Critical patent/DK0471000T3/da

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
    • G01F1/05—Measuring 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
    • G01F1/34—Measuring 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04—Pumps having electric drive
    • F04B43/043—Micropumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/004—Actuating devices; Operating means; Releasing devices actuated by piezoelectric means
    • F16K31/005—Piezoelectric benders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
    • 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
    • A61M2005/1401—Functional features
    • A61M2005/1403—Flushing or purging
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Anesthesiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Volume Flow (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • External Artificial Organs (AREA)
  • Flow Control (AREA)
  • Control Of Fluid Pressure (AREA)
DK90907593T 1989-05-01 1990-04-27 Forbedret system til strømningsregulering ved trykmåling DK0471000T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/345,387 US4976162A (en) 1987-09-03 1989-05-01 Enhanced pressure measurement flow control system
PCT/US1990/002321 WO1990013795A2 (en) 1989-05-01 1990-04-27 Enhanced pressure measurement flow control system

Publications (1)

Publication Number Publication Date
DK0471000T3 true DK0471000T3 (da) 1999-08-30

Family

ID=23354846

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90907593T DK0471000T3 (da) 1989-05-01 1990-04-27 Forbedret system til strømningsregulering ved trykmåling

Country Status (9)

Country Link
US (1) US4976162A (da)
EP (1) EP0471000B1 (da)
JP (1) JP2952037B2 (da)
KR (1) KR0166337B1 (da)
AT (1) ATE175270T1 (da)
CA (1) CA2049337C (da)
DE (1) DE69032869T2 (da)
DK (1) DK0471000T3 (da)
WO (1) WO1990013795A2 (da)

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EP0471000B1 (en) 1998-12-30
CA2049337C (en) 2000-08-29
WO1990013795A3 (en) 1991-01-10
JPH05502096A (ja) 1993-04-15
DE69032869D1 (de) 1999-02-11
DE69032869T2 (de) 1999-06-02
JP2952037B2 (ja) 1999-09-20
KR0166337B1 (ko) 1999-05-01
ATE175270T1 (de) 1999-01-15
US4976162A (en) 1990-12-11
WO1990013795A2 (en) 1990-11-15
KR920701791A (ko) 1992-08-12
CA2049337A1 (en) 1990-11-02
EP0471000A1 (en) 1992-02-19

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