ATE175270T1 - Verbessertes debitregelungssystem durch druckmessung - Google Patents

Verbessertes debitregelungssystem durch druckmessung

Info

Publication number
ATE175270T1
ATE175270T1 AT90907593T AT90907593T ATE175270T1 AT E175270 T1 ATE175270 T1 AT E175270T1 AT 90907593 T AT90907593 T AT 90907593T AT 90907593 T AT90907593 T AT 90907593T AT E175270 T1 ATE175270 T1 AT E175270T1
Authority
AT
Austria
Prior art keywords
container
fluid
pressure measurement
regulation system
line
Prior art date
Application number
AT90907593T
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 ATE175270T1 publication Critical patent/ATE175270T1/de

Links

Classifications

    • 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
    • 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
    • A61M5/16804—Active flow controllers
    • A61M5/16809—Active 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
    • 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)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Volume Flow (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • External Artificial Organs (AREA)
  • Control Of Fluid Pressure (AREA)
  • Flow Control (AREA)
AT90907593T 1989-05-01 1990-04-27 Verbessertes debitregelungssystem durch druckmessung ATE175270T1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE175270T1 true ATE175270T1 (de) 1999-01-15

Family

ID=23354846

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90907593T ATE175270T1 (de) 1989-05-01 1990-04-27 Verbessertes debitregelungssystem durch druckmessung

Country Status (9)

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

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CA2049337C (en) 2000-08-29
EP0471000B1 (de) 1998-12-30
DE69032869T2 (de) 1999-06-02
US4976162A (en) 1990-12-11
CA2049337A1 (en) 1990-11-02
DK0471000T3 (da) 1999-08-30
KR920701791A (ko) 1992-08-12
JPH05502096A (ja) 1993-04-15
DE69032869D1 (de) 1999-02-11
WO1990013795A3 (en) 1991-01-10
WO1990013795A2 (en) 1990-11-15
KR0166337B1 (ko) 1999-05-01
JP2952037B2 (ja) 1999-09-20
EP0471000A1 (de) 1992-02-19

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