FR2272435A1 - Medical transfusion flow regulator - has throttle valve driven from flow error signal - Google Patents

Medical transfusion flow regulator - has throttle valve driven from flow error signal

Info

Publication number
FR2272435A1
FR2272435A1 FR7418696A FR7418696A FR2272435A1 FR 2272435 A1 FR2272435 A1 FR 2272435A1 FR 7418696 A FR7418696 A FR 7418696A FR 7418696 A FR7418696 A FR 7418696A FR 2272435 A1 FR2272435 A1 FR 2272435A1
Authority
FR
France
Prior art keywords
error signal
throttle valve
flow
valve driven
medical transfusion
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.)
Granted
Application number
FR7418696A
Other languages
French (fr)
Other versions
FR2272435B1 (en
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.)
HANUSSE GERARD
Original Assignee
HANUSSE GERARD
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 HANUSSE GERARD filed Critical HANUSSE GERARD
Priority to FR7418696A priority Critical patent/FR2272435A1/en
Publication of FR2272435A1 publication Critical patent/FR2272435A1/en
Application granted granted Critical
Publication of FR2272435B1 publication Critical patent/FR2272435B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A61M5/16854—Monitoring, detecting, signalling or eliminating infusion flow anomalies by monitoring line 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
    • A61M5/16886—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
    • A61M5/1689—Drip counters
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The regulation of low flow volumes medical transfusions or for use in the chemical industry is performed by a variable throttle downstream of a droplet chamber. Drops of liquid (21) from a nozzle (18) fall into the partly filled (19) droplet chamber (17). The drops pass through electric cell (24) at the input of a signal processing circuit (25). The output signal is compared (26) with a programmed value from a calculator (27) and the difference signal operates a motorised (28) throttle (29). Power supplies (30) and manual control with audible or visible alarms are also provided.
FR7418696A 1974-05-22 1974-05-22 Medical transfusion flow regulator - has throttle valve driven from flow error signal Granted FR2272435A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7418696A FR2272435A1 (en) 1974-05-22 1974-05-22 Medical transfusion flow regulator - has throttle valve driven from flow error signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7418696A FR2272435A1 (en) 1974-05-22 1974-05-22 Medical transfusion flow regulator - has throttle valve driven from flow error signal

Publications (2)

Publication Number Publication Date
FR2272435A1 true FR2272435A1 (en) 1975-12-19
FR2272435B1 FR2272435B1 (en) 1976-10-15

Family

ID=9139422

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7418696A Granted FR2272435A1 (en) 1974-05-22 1974-05-22 Medical transfusion flow regulator - has throttle valve driven from flow error signal

Country Status (1)

Country Link
FR (1) FR2272435A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524320A1 (en) * 1982-04-05 1983-10-07 Ipco Corp APPARATUS FOR MONITORING THE INFUSION OF LIQUIDS
EP0588427A2 (en) * 1992-09-18 1994-03-23 Francesco Bellifemine Device for monitoring and controlling an intravenous infusion system
WO2009109559A1 (en) * 2008-03-06 2009-09-11 T3M Drop counter
CN103984366A (en) * 2014-05-29 2014-08-13 胡达广 Automatic capacitance micro flow control device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524320A1 (en) * 1982-04-05 1983-10-07 Ipco Corp APPARATUS FOR MONITORING THE INFUSION OF LIQUIDS
EP0588427A2 (en) * 1992-09-18 1994-03-23 Francesco Bellifemine Device for monitoring and controlling an intravenous infusion system
EP0588427A3 (en) * 1992-09-18 1994-12-07 Francesco Bellifemine Device for monitoring and controlling an intravenous infusion system.
US5439442A (en) * 1992-09-18 1995-08-08 Bellifemine; Francesco Device for monitoring and controlling an intravenous infusion system
WO2009109559A1 (en) * 2008-03-06 2009-09-11 T3M Drop counter
US7918834B2 (en) 2008-03-06 2011-04-05 T3M Drop counter
CN103984366A (en) * 2014-05-29 2014-08-13 胡达广 Automatic capacitance micro flow control device
CN103984366B (en) * 2014-05-29 2017-01-11 卢碧娴 Automatic capacitance micro flow control device

Also Published As

Publication number Publication date
FR2272435B1 (en) 1976-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse