GB1528385A - Dispensing apparatus - Google Patents

Dispensing apparatus

Info

Publication number
GB1528385A
GB1528385A GB5065775A GB5065775A GB1528385A GB 1528385 A GB1528385 A GB 1528385A GB 5065775 A GB5065775 A GB 5065775A GB 5065775 A GB5065775 A GB 5065775A GB 1528385 A GB1528385 A GB 1528385A
Authority
GB
United Kingdom
Prior art keywords
piston
responsive
motor
dispensing apparatus
energizing current
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
Application number
GB5065775A
Inventor
John Ernest Elson Sharpe
John Ernest Lewin
Peter Colebrook
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB5065775A priority Critical patent/GB1528385A/en
Priority to GB948977A priority patent/GB1601471A/en
Publication of GB1528385A publication Critical patent/GB1528385A/en
Expired 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
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1456—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
    • 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
    • G05D7/0676—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 flow sources

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • General Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (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

1528385 Automatic control NATIONAL RESEARCH DEVELOPMENT CORP 4 March 1977 [10 Dec 1975] 50657/75 Heading G3N A dispensing apparatus comprising a piston for displacing material from a container e.g. a syringe comprises a motor 24 for driving the piston and a bi-stable circuit 59 responsive to periodically repeated signals at 60 from a timing circuit 57, 58 to cause it to feed energizing current to the motor, and responsive to signals at 61 from a piston position sensor 64 to switch off the energizing current each time the piston displacement increases by a predetermined increment.
GB5065775A 1975-12-10 1975-12-10 Dispensing apparatus Expired GB1528385A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5065775A GB1528385A (en) 1975-12-10 1975-12-10 Dispensing apparatus
GB948977A GB1601471A (en) 1975-12-10 1977-03-07 Dispensing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5065775A GB1528385A (en) 1975-12-10 1975-12-10 Dispensing apparatus

Publications (1)

Publication Number Publication Date
GB1528385A true GB1528385A (en) 1978-10-11

Family

ID=10456831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5065775A Expired GB1528385A (en) 1975-12-10 1975-12-10 Dispensing apparatus

Country Status (1)

Country Link
GB (1) GB1528385A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042282A1 (en) * 1980-06-13 1981-12-23 National Research Development Corporation Infusion apparatus
EP0077382A1 (en) * 1981-04-24 1983-04-27 Biotek Inc. Wearable medication infusion system with arcuate reservoir
DE3144825A1 (en) 1981-11-11 1983-05-19 Dr. Eduard Fresenius, Chemisch-pharmazeutische Industrie KG, 6380 Bad Homburg Injection pump
EP0092712A2 (en) * 1982-04-28 1983-11-02 B. Braun-SSC AG Pressure infusion apparatus for medical applications
FR2577433A1 (en) * 1985-02-21 1986-08-22 Commissariat Energie Atomique Apparatus for mixing a plurality of liquids
WO2010102750A1 (en) * 2009-03-12 2010-09-16 Imp Pape Gmbh & Co. Kg Method and device for continuously driving a syringe plunger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042282A1 (en) * 1980-06-13 1981-12-23 National Research Development Corporation Infusion apparatus
EP0077382A1 (en) * 1981-04-24 1983-04-27 Biotek Inc. Wearable medication infusion system with arcuate reservoir
EP0077382A4 (en) * 1981-04-24 1984-11-16 Biotek Inc Wearable medication infusion system with arcuate reservoir.
DE3144825A1 (en) 1981-11-11 1983-05-19 Dr. Eduard Fresenius, Chemisch-pharmazeutische Industrie KG, 6380 Bad Homburg Injection pump
EP0092712A2 (en) * 1982-04-28 1983-11-02 B. Braun-SSC AG Pressure infusion apparatus for medical applications
EP0092712A3 (en) * 1982-04-28 1984-05-30 Intermedicat Gmbh Pressure infusion apparatus for medical applications
FR2577433A1 (en) * 1985-02-21 1986-08-22 Commissariat Energie Atomique Apparatus for mixing a plurality of liquids
WO2010102750A1 (en) * 2009-03-12 2010-09-16 Imp Pape Gmbh & Co. Kg Method and device for continuously driving a syringe plunger

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960304