FR2448905A1 - Automatic control of drop rate for infusion of serum etc. - with electronic circuit to adjust rate to match frequency of signals from adjustable pulse generator - Google Patents

Automatic control of drop rate for infusion of serum etc. - with electronic circuit to adjust rate to match frequency of signals from adjustable pulse generator

Info

Publication number
FR2448905A1
FR2448905A1 FR7903902A FR7903902A FR2448905A1 FR 2448905 A1 FR2448905 A1 FR 2448905A1 FR 7903902 A FR7903902 A FR 7903902A FR 7903902 A FR7903902 A FR 7903902A FR 2448905 A1 FR2448905 A1 FR 2448905A1
Authority
FR
France
Prior art keywords
pulse generator
drop
rate
electronic circuit
frequency
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
FR7903902A
Other languages
French (fr)
Other versions
FR2448905B1 (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.)
AUTEG
Original Assignee
AUTEG
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 AUTEG filed Critical AUTEG
Priority to FR7903902A priority Critical patent/FR2448905A1/en
Publication of FR2448905A1 publication Critical patent/FR2448905A1/en
Application granted granted Critical
Publication of FR2448905B1 publication Critical patent/FR2448905B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

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

Abstract

The appts. comprises a drop dispenser, a drop detector, a means for establishing a time base datum and an adjustable pulse generator which can be set to the required frequency of the drops to be administered. The appts. now comprises an electronic circuit comprising a counter/comparator which receives signals from both the drop detector and the pulse generator. The circuit operates a servo-mechanism which adjusts the frequency of drop delivery to match the rhythm set on the pulse generator. The quantity of liq. delivered per min. can be varied over a very wide range. The frequency of drops per minute can be changed by adjusting the pulse generator. The drop dispensing nozzle can be selected from a wide range of dias. which offer different numbers of drops per cm3.
FR7903902A 1979-02-15 1979-02-15 Automatic control of drop rate for infusion of serum etc. - with electronic circuit to adjust rate to match frequency of signals from adjustable pulse generator Granted FR2448905A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7903902A FR2448905A1 (en) 1979-02-15 1979-02-15 Automatic control of drop rate for infusion of serum etc. - with electronic circuit to adjust rate to match frequency of signals from adjustable pulse generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7903902A FR2448905A1 (en) 1979-02-15 1979-02-15 Automatic control of drop rate for infusion of serum etc. - with electronic circuit to adjust rate to match frequency of signals from adjustable pulse generator

Publications (2)

Publication Number Publication Date
FR2448905A1 true FR2448905A1 (en) 1980-09-12
FR2448905B1 FR2448905B1 (en) 1983-05-27

Family

ID=9222027

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7903902A Granted FR2448905A1 (en) 1979-02-15 1979-02-15 Automatic control of drop rate for infusion of serum etc. - with electronic circuit to adjust rate to match frequency of signals from adjustable pulse generator

Country Status (1)

Country Link
FR (1) FR2448905A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849703A1 (en) * 2002-12-06 2004-07-09 Irian Aeraulics management model for fluid management system, has micro controller controlling flow control unit independently and in response to signal coming from another control unit from distant measuring module

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1326373A (en) * 1970-04-14 1973-08-08 Ivac Corp Fluid flow control apparatus
NL7414454A (en) * 1974-11-06 1976-05-10 John Allyn Tregoning Liquid infusion apparatus - has adjustable counter regulating drip frequency set by supplying adjusting impulses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1326373A (en) * 1970-04-14 1973-08-08 Ivac Corp Fluid flow control apparatus
NL7414454A (en) * 1974-11-06 1976-05-10 John Allyn Tregoning Liquid infusion apparatus - has adjustable counter regulating drip frequency set by supplying adjusting impulses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849703A1 (en) * 2002-12-06 2004-07-09 Irian Aeraulics management model for fluid management system, has micro controller controlling flow control unit independently and in response to signal coming from another control unit from distant measuring module

Also Published As

Publication number Publication date
FR2448905B1 (en) 1983-05-27

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Legal Events

Date Code Title Description
ST Notification of lapse