GB751203A - A piston made of plastic material for a syringe for hypodermic injections - Google Patents

A piston made of plastic material for a syringe for hypodermic injections

Info

Publication number
GB751203A
GB751203A GB28832/54A GB2883254A GB751203A GB 751203 A GB751203 A GB 751203A GB 28832/54 A GB28832/54 A GB 28832/54A GB 2883254 A GB2883254 A GB 2883254A GB 751203 A GB751203 A GB 751203A
Authority
GB
United Kingdom
Prior art keywords
piston
tube
syringe
plastic material
oct
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
GB28832/54A
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
Publication of GB751203A publication Critical patent/GB751203A/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
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M5/31513—Piston constructions to improve sealing or sliding

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (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

751,203. Hypodermic syringes. BERTHIOT, M. Oct. 6, 1954 [Oct. 14, 1953], No. 28832/54. Class 81(2). A syringe piston of flexible material, such as polythene, is made inflatable to maintain a liquid tight seal with the syringe barrel. The piston envelope 1 is of approximately the correct size to fit the barrel and is supported by an inner tube 2, sealed to it at the top and bottom. The tube has perforations 3 at its lower end and encloses a piston 6, sealed by a nylon ring 7 and designed to be forced down into the tube 2 by turning in threads 4. If it is desired to vent the interior of the piston during sterilisation, the tube 2 is made hollow and communication with the atmosphere is obtained through holes 9 and a removable cap 8. In this case a second sealing ring 10 is provided above the holes 9.
GB28832/54A 1953-10-14 1954-10-06 A piston made of plastic material for a syringe for hypodermic injections Expired GB751203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR751203X 1953-10-14

Publications (1)

Publication Number Publication Date
GB751203A true GB751203A (en) 1956-06-27

Family

ID=9154096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28832/54A Expired GB751203A (en) 1953-10-14 1954-10-06 A piston made of plastic material for a syringe for hypodermic injections

Country Status (1)

Country Link
GB (1) GB751203A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685514A (en) * 1969-09-23 1972-08-22 Paul E Cheney Two compartment syringe
CN106983929A (en) * 2017-05-19 2017-07-28 四川北辰乾衡科技有限责任公司 A kind of muscle recovery cartridge syringe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685514A (en) * 1969-09-23 1972-08-22 Paul E Cheney Two compartment syringe
CN106983929A (en) * 2017-05-19 2017-07-28 四川北辰乾衡科技有限责任公司 A kind of muscle recovery cartridge syringe

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