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FR2236518A1 - Automatically controlled perfusion unit - measures drops per minute by extrapolation of time between consecutive drops - Google Patents

Automatically controlled perfusion unit - measures drops per minute by extrapolation of time between consecutive drops

Info

Publication number
FR2236518A1
FR2236518A1 FR7325924A FR7325924A FR2236518A1 FR 2236518 A1 FR2236518 A1 FR 2236518A1 FR 7325924 A FR7325924 A FR 7325924A FR 7325924 A FR7325924 A FR 7325924A FR 2236518 A1 FR2236518 A1 FR 2236518A1
Authority
FR
France
Prior art keywords
drops
per minute
extrapolation
consecutive
time
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
FR7325924A
Other languages
French (fr)
Other versions
FR2236518B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7325924A priority Critical patent/FR2236518A1/en
Publication of FR2236518A1 publication Critical patent/FR2236518A1/en
Application granted granted Critical
Publication of FR2236518B1 publication Critical patent/FR2236518B1/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
    • A61M5/16886—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)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • 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)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The output in drops per minute is extrapolated from the period separating two consecutive drops, typically by using an opto-electronic device to detect the drops. The time separating the drops can be measured by counting the impulses from an internal clock. A calculator unit can be used to determine the rate per minute, altering it as necessary with each drop. The opto-electronic device (1) does not contaminate the perfusion equipment and the resulting output signal is compared with a pre-programmed value and andy discrepancy is used to adjust the device (6) controlling the flow area of the perfusion tube.
FR7325924A 1973-07-09 1973-07-09 Automatically controlled perfusion unit - measures drops per minute by extrapolation of time between consecutive drops Granted FR2236518A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7325924A FR2236518A1 (en) 1973-07-09 1973-07-09 Automatically controlled perfusion unit - measures drops per minute by extrapolation of time between consecutive drops

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7325924A FR2236518A1 (en) 1973-07-09 1973-07-09 Automatically controlled perfusion unit - measures drops per minute by extrapolation of time between consecutive drops

Publications (2)

Publication Number Publication Date
FR2236518A1 true FR2236518A1 (en) 1975-02-07
FR2236518B1 FR2236518B1 (en) 1976-06-18

Family

ID=9122609

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7325924A Granted FR2236518A1 (en) 1973-07-09 1973-07-09 Automatically controlled perfusion unit - measures drops per minute by extrapolation of time between consecutive drops

Country Status (1)

Country Link
FR (1) FR2236518A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007618A3 (en) * 1978-07-24 1980-02-20 Terumo Corporation A stactometric apparatus
FR2477704A1 (en) * 1980-03-10 1981-09-11 Imed Corp ASSEMBLY TO GIVE A VISUAL IMAGE OF THE LOAD AT WHICH FLUID DROPS CROSS A DRAIN CHAMBER AND TOGETHER TO FACILITATE A VISUAL IMAGE BY A FLOWMETER, FROM THE FALL OF THE FALL OF FLUID DROPS FROM A SOURCE TO A PATIENT

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007618A3 (en) * 1978-07-24 1980-02-20 Terumo Corporation A stactometric apparatus
FR2477704A1 (en) * 1980-03-10 1981-09-11 Imed Corp ASSEMBLY TO GIVE A VISUAL IMAGE OF THE LOAD AT WHICH FLUID DROPS CROSS A DRAIN CHAMBER AND TOGETHER TO FACILITATE A VISUAL IMAGE BY A FLOWMETER, FROM THE FALL OF THE FALL OF FLUID DROPS FROM A SOURCE TO A PATIENT
DE3108848A1 (en) * 1980-03-10 1982-01-14 Imed Corp., 92131 San Diego, Calif. DROP METER
US4346606A (en) * 1980-03-10 1982-08-31 Imed Corporation Rate meter

Also Published As

Publication number Publication date
FR2236518B1 (en) 1976-06-18

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Legal Events

Date Code Title Description
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