GB768432A - Improvements in or relating to assembly for a hypodermic injector - Google Patents

Improvements in or relating to assembly for a hypodermic injector

Info

Publication number
GB768432A
GB768432A GB11524/55A GB1152455A GB768432A GB 768432 A GB768432 A GB 768432A GB 11524/55 A GB11524/55 A GB 11524/55A GB 1152455 A GB1152455 A GB 1152455A GB 768432 A GB768432 A GB 768432A
Authority
GB
United Kingdom
Prior art keywords
levers
force
plunger
plate
disc
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
GB11524/55A
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.)
Catalent Pharma Solutions Inc
Original Assignee
Catalent Pharma Solutions Inc
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 Catalent Pharma Solutions Inc filed Critical Catalent Pharma Solutions Inc
Publication of GB768432A publication Critical patent/GB768432A/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
    • A61M5/30—Syringes for injection by jet action, without needle, e.g. for use with replaceable ampoules or carpules
    • 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
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A61M5/2455—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic with sealing means to be broken or opened
    • A61M5/2459—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic with sealing means to be broken or opened upon internal pressure increase, e.g. pierced or burst

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

768,432. Hypodermic injection appliances. SCHERER CORPORATION, R. P. April 21, 1955 [July 12, 1954], No. 11524/55. Class 81(2) In a needleless hypodermic injector the initial part of the expulsion of medicament is performed under increased pressure by a force-multiplying means and, in the forms described, the said means comprises either cams or levers. Power for operation of the appliance is obtained by winding a disc 66 up a screw 61 against power springs 64 and then releasing both disc and spring as a unit by withdrawing a latch 83. As a central pin 52 is driven down, cam surfaces 54 force triangular blocks 47 outwards and these, by riding on inclined surfaces 49, are forced downwards, thrusting the plunger 40 down with increased force until the foot 66 of the driving assembly engages the plate 43, whereupon the thrust of the springs 64 acts directly on the plunger through this plate and the blocks 47. In a modified form, see Fig. 4 (not shown), the triangular blocks are replaced by spherical balls. A third form is also described, Fig. 5, in which the central screw bears on the inner ends of segmental, arcuate levers 104, the outer ends 110 of which bear against fixed pillars 90a as fulcrums. By this means the plunger head 102 is driven down with an initially increased force which gradually diminishes as the levers roll on the surface 101 until finally the thrust plate 66 bears on the levers and the assembly moves as a unit.
GB11524/55A 1954-07-12 1955-04-21 Improvements in or relating to assembly for a hypodermic injector Expired GB768432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US442613A US2816543A (en) 1954-07-12 1954-07-12 Hypodermic injector

Publications (1)

Publication Number Publication Date
GB768432A true GB768432A (en) 1957-02-13

Family

ID=23757469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11524/55A Expired GB768432A (en) 1954-07-12 1955-04-21 Improvements in or relating to assembly for a hypodermic injector

Country Status (3)

Country Link
US (1) US2816543A (en)
DE (1) DE1093052B (en)
GB (1) GB768432A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL133848C (en) * 1960-08-15
US3167071A (en) * 1961-07-17 1965-01-26 Scherer Corp R P Apparatus for administering intradermal injections
US3518990A (en) * 1968-05-02 1970-07-07 Oscar H Banker Gun type inoculator
US3507276A (en) * 1968-08-28 1970-04-21 Murray B Burgess Jet injector
US4722728A (en) * 1987-01-23 1988-02-02 Patents Unlimited, Ltd. Needleless hypodermic injector
US4874367A (en) * 1988-02-05 1989-10-17 Marpam International, Inc. Hypodermic jet injector and cartridge therefor
US5312335A (en) * 1989-11-09 1994-05-17 Bioject Inc. Needleless hypodermic injection device
US5211607A (en) * 1990-05-24 1993-05-18 Fermaglish Daniel R Baby activity center
US5302163A (en) * 1990-05-24 1994-04-12 Daniel R. Fermaglich Infant exerciser and activity center
US5383851A (en) * 1992-07-24 1995-01-24 Bioject Inc. Needleless hypodermic injection device
US5599302A (en) * 1995-01-09 1997-02-04 Medi-Ject Corporation Medical injection system and method, gas spring thereof and launching device using gas spring
US5697917A (en) * 1996-02-29 1997-12-16 Medi-Ject Corporation Nozzle assembly with adjustable plunger travel gap
US5800388A (en) * 1996-02-29 1998-09-01 Medi-Ject Corporation Plunger/ram assembly adapted for a fluid injector
US5921967A (en) * 1996-02-29 1999-07-13 Medi-Ject Corporation Plunger for nozzle assembly
US5643211A (en) * 1996-02-29 1997-07-01 Medi-Ject Corporation Nozzle assembly having a frangible plunger
US5865795A (en) * 1996-02-29 1999-02-02 Medi-Ject Corporation Safety mechanism for injection devices
US5722953A (en) * 1996-02-29 1998-03-03 Medi-Ject Corporation Nozzle assembly for injection device
US5769138A (en) 1996-04-01 1998-06-23 Medi-Ject Corporation Nozzle and adapter for loading medicament into an injector
US5875976A (en) * 1996-12-24 1999-03-02 Medi-Ject Corporation Locking mechanism for nozzle assembly
US5993412A (en) * 1997-05-19 1999-11-30 Bioject, Inc. Injection apparatus
DE10160393A1 (en) * 2001-12-10 2003-06-18 Roesch Ag Medizintechnik Injection unit, useful e.g. for injection of a medicament into a subcutaneous tissue, comprises blocking and release devices for stopping and resumption of the ampule piston drive
DE102007018868A1 (en) * 2007-04-19 2008-10-23 Lts Lohmann Therapie-Systeme Ag Disposable injector with at least one towing hook and a sliding wedge gear for unlocking releasing a locking element
US9901681B2 (en) * 2008-09-18 2018-02-27 Becton, Dickinson And Company Medical injector with slidable sleeve activation
US9545483B2 (en) * 2008-12-02 2017-01-17 Sanofi-Aventis Deutschland Gmbh Drive assembly suitable for use in a medication delivery device and medication delivery device
US8974423B2 (en) * 2009-06-01 2015-03-10 Sanofi-Aventis Deutschland Gmbh Resettable drug delivery device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE867594C (en) * 1951-03-19 1953-02-19 Scherer Corp R P Injection syringe

Also Published As

Publication number Publication date
US2816543A (en) 1957-12-17
DE1093052B (en) 1960-11-17

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