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DE69032869D1 - Verbessertes debitregelungssystem durch druckmessung - Google Patents

Verbessertes debitregelungssystem durch druckmessung

Info

Publication number
DE69032869D1
DE69032869D1 DE69032869T DE69032869T DE69032869D1 DE 69032869 D1 DE69032869 D1 DE 69032869D1 DE 69032869 T DE69032869 T DE 69032869T DE 69032869 T DE69032869 T DE 69032869T DE 69032869 D1 DE69032869 D1 DE 69032869D1
Authority
DE
Germany
Prior art keywords
container
fluid
control system
pressure measurement
debit control
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
DE69032869T
Other languages
English (en)
Other versions
DE69032869T2 (de
Inventor
Dean Kamen
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.)
Deka Products LP
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
Publication of DE69032869D1 publication Critical patent/DE69032869D1/de
Application granted granted Critical
Publication of DE69032869T2 publication Critical patent/DE69032869T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01F1/05—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)
  • 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)
  • Flow Control (AREA)
  • Control Of Fluid Pressure (AREA)
DE69032869T 1989-05-01 1990-04-27 Verbessertes debitregelungssystem durch druckmessung Expired - Lifetime DE69032869T2 (de)

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 (2)

Publication Number Publication Date
DE69032869D1 true DE69032869D1 (de) 1999-02-11
DE69032869T2 DE69032869T2 (de) 1999-06-02

Family

ID=23354846

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69032869T Expired - Lifetime DE69032869T2 (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
EP0471000A1 (de) 1992-02-19
KR0166337B1 (ko) 1999-05-01
KR920701791A (ko) 1992-08-12
DK0471000T3 (da) 1999-08-30
DE69032869T2 (de) 1999-06-02
JPH05502096A (ja) 1993-04-15
JP2952037B2 (ja) 1999-09-20
CA2049337A1 (en) 1990-11-02
ATE175270T1 (de) 1999-01-15
WO1990013795A2 (en) 1990-11-15
WO1990013795A3 (en) 1991-01-10
US4976162A (en) 1990-12-11
EP0471000B1 (de) 1998-12-30

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