GB1140299A - Hypodermic syringe - Google Patents

Hypodermic syringe

Info

Publication number
GB1140299A
GB1140299A GB2525967A GB2525967A GB1140299A GB 1140299 A GB1140299 A GB 1140299A GB 2525967 A GB2525967 A GB 2525967A GB 2525967 A GB2525967 A GB 2525967A GB 1140299 A GB1140299 A GB 1140299A
Authority
GB
United Kingdom
Prior art keywords
barrel
plunger
floating piston
diaphragm
hypodermic
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
GB2525967A
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 GB2525967A priority Critical patent/GB1140299A/en
Publication of GB1140299A publication Critical patent/GB1140299A/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
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • A61M5/285—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened
    • A61M5/286—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened upon internal pressure increase, e.g. pierced or burst
    • 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
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • A61M5/284—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle comprising means for injection of two or more media, e.g. by mixing

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

1,140,299. Hypodermic syringes. I. SOLOWEY. 1 June, 1967, No. 25259/67. Heading A5R. A hypodermic syringe (see Figure 2) comprises a cylindrical barrel 10, a plunger 14 adapted to slide within the barrel, and a floating piston 40 sealingly slidable within the barrel and comprising a thin frangible diaphragm 22 made for example of rubber and mounted transversely of a hollow cylindrical member 20 also made for example of rubber. The floating piston divides the barrel into two chambers for carrying respectively two separate ingredients to be mixed together on rupture of the diaphragm, the chamber on the side of the floating piston nearer to the plunger containing liquid and the chamber on the side of the floating piston remote from the plunger containing gaseous medium and either a second liquid or powder. The hollow cylindrical member of the floating piston has an expansible waisted portion 41 (see Figure 4) whereby, on operation of the plunger by for example plunger arm 24 to increase the pressure within the barrel, the floating piston grips the inside wall of the barrel until the diaphragm is ruptured thereby to enable the two ingredients to mix. The plunger preferably is provided with a head which is shaped for engagement with the floating piston; as illustrated the plunger has a shoulder 25 defining a head 26 which is contoured to fit inside the cavity of the floating piston. In order to prevent removal of the plunger from the barrel, end 12 of the barrel preferably is provided with a closure member 14a having a central aperture 12a through which extends the plunger arm; the opposite end of the barrel is provided with a tip which is sealed, prior to use of the syringe, by a removable cap 18 and which is adapted, upon removal of the cap, to receive a hypodermic needle (not shown).
GB2525967A 1967-06-01 1967-06-01 Hypodermic syringe Expired GB1140299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2525967A GB1140299A (en) 1967-06-01 1967-06-01 Hypodermic syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2525967A GB1140299A (en) 1967-06-01 1967-06-01 Hypodermic syringe

Publications (1)

Publication Number Publication Date
GB1140299A true GB1140299A (en) 1969-01-15

Family

ID=10224805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2525967A Expired GB1140299A (en) 1967-06-01 1967-06-01 Hypodermic syringe

Country Status (1)

Country Link
GB (1) GB1140299A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1418958A2 (en) * 2001-08-21 2004-05-19 D'Antonio Consultants International, Inc. Hypodermic jet injection kit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1418958A2 (en) * 2001-08-21 2004-05-19 D'Antonio Consultants International, Inc. Hypodermic jet injection kit
EP1418958A4 (en) * 2001-08-21 2006-05-24 Dantonio Consultants Int Hypodermic jet injection kit
EP2095838A3 (en) * 2001-08-21 2009-09-09 D'Antonio Consultants International, Inc. Ampule for needle-less injector
US8348907B2 (en) 2001-08-21 2013-01-08 D'antonio Consultants International Inc. Hypodermic injection system

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