GB991894A - Hypodermic injector - Google Patents

Hypodermic injector

Info

Publication number
GB991894A
GB991894A GB29444/61A GB2944461A GB991894A GB 991894 A GB991894 A GB 991894A GB 29444/61 A GB29444/61 A GB 29444/61A GB 2944461 A GB2944461 A GB 2944461A GB 991894 A GB991894 A GB 991894A
Authority
GB
United Kingdom
Prior art keywords
spring
injection
plunger
piston
medicament
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
GB29444/61A
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 GB991894A publication Critical patent/GB991894A/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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M5/204—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically connected to external reservoirs for multiple refilling

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

991,894. Surgical injection appliances. R. P. SCHERER CORPORATION. Aug. 15, 1961 [Aug. 15, 1960], No. 29444/61. Heading A5R. A needleless hypodermic injector provides a two-stage injection, the first of which is at relatively high pressure and is achieved by a pre-loaded spring which, on release, drives the plunger forward in advance of the main propelling means. Medicament is received in a chamber 18 from a storage bottle 34 through an adjustable three-way valve 40. The plunger head 74 is attached, with slight lost movement Y, in the end of a plunger rod 72 which is connected to a piston 70 through a pre-compressed spring 78 and adjusting bolt 90. The piston is sealed by a looped diaphragm 69 and is arranged to be driven towards the left by compressed air received through a union 136, the air supply being automatically switched on when the valve 40 is turned 90 degrees clockwise from the position shown, to connect the medicament chamber 18 with the outlet nozzle 52. In use, the valve 40 is first set to the position shown, whereupon the air supply is cut off and a spring 94 returns the plunger assembly to the limit of its travel, at which point a latch 132 engages behind the cup-shaped spring housing 76 and is held by a trigger 126. Retraction of the plunger head 74 draws in medicament from the container 34 and when this operation is complete the valve 40 is rotated to its discharge position. As stated above, this automatically switches on the air supply which consequently advances the piston 70 through the distance X, so compressing the already stressed spring 78. The injection is made by using the trigger 126 to release the latch 132, whereupon, initially, the spring 78 drives the plunger rod 72 forward to strike the head 74 to give a first high pressure stage of medicament injection. Immediately thereafter the piston 70 is advanced steadily by the air pressure, driving the plunger head 74 to the limit of is travel, for the second stage of injection.
GB29444/61A 1960-08-15 1961-08-15 Hypodermic injector Expired GB991894A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49662A US3130723A (en) 1960-08-15 1960-08-15 Multidose jet injector

Publications (1)

Publication Number Publication Date
GB991894A true GB991894A (en) 1965-05-12

Family

ID=21961012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29444/61A Expired GB991894A (en) 1960-08-15 1961-08-15 Hypodermic injector

Country Status (5)

Country Link
US (1) US3130723A (en)
CH (1) CH391964A (en)
DE (1) DE1287743B (en)
GB (1) GB991894A (en)
NL (2) NL133848C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143737A (en) * 1982-05-27 1985-02-20 Preci Tech Ltd Needleless injector

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330276A (en) * 1963-10-07 1967-07-11 Scherer Corp R P Hypodermic jet injector
US3362589A (en) * 1966-06-23 1968-01-09 Continental Can Co Piston for aerosol can
US3805783A (en) * 1971-02-12 1974-04-23 A Ismach Hand powered hypodermic jet injector gun
DE3115372A1 (en) * 1981-04-16 1982-11-11 Hoechst Ag, 6000 Frankfurt PISTON PUMP FOR NEEDLE-FREE INJECTION EQUIPMENT
HU186718B (en) * 1983-06-29 1985-09-30 Radelkis Electrokemiai Automatic needleless syringe operable by cardox cylinder suitable for personal giving injection e.g. insulin
US5049125A (en) * 1987-05-26 1991-09-17 Claude Accaries Needleless injection apparatus of a liquid, notably for dental care
US5024656A (en) * 1988-08-30 1991-06-18 Injet Medical Products, Inc. Gas-pressure-regulated needleless injection system
US5062830A (en) * 1990-04-04 1991-11-05 Derata Corporation Dry disposable nozzle assembly for medical jet injector
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
US5722953A (en) * 1996-02-29 1998-03-03 Medi-Ject Corporation Nozzle assembly for injection device
US5643211A (en) * 1996-02-29 1997-07-01 Medi-Ject Corporation Nozzle assembly having a frangible plunger
US5921967A (en) * 1996-02-29 1999-07-13 Medi-Ject Corporation Plunger for nozzle assembly
US5865795A (en) * 1996-02-29 1999-02-02 Medi-Ject Corporation Safety mechanism for injection devices
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
US6290106B1 (en) * 2001-01-08 2001-09-18 Wen I Kuo Angle adjustable grease dispensing gun
EP2514458B1 (en) * 2004-06-09 2022-12-21 Mark Anderson and Associates, Incorporated Hypodermic injection system
WO2008037801A1 (en) * 2006-09-29 2008-04-03 Novo Nordisk A/S An injection device with electronic detecting means
KR101838631B1 (en) * 2016-11-03 2018-04-26 서울대학교 산학협력단 Automatic recharging micro-jet drug injection device preventing jet speed down problem of repeated injection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573954A (en) * 1950-07-29 1951-11-06 Wesley C Casson Water pistol with mechanism which discharges a succession of water shots
US2754878A (en) * 1953-07-27 1956-07-17 Goodrich Co B F Apparatus for bending valve stems
US2816543A (en) * 1954-07-12 1957-12-17 Scherer Corp R P Hypodermic injector
US2928390A (en) * 1957-07-15 1960-03-15 Scherer Corp R P Multi-dose hypodermic injector
US3057349A (en) * 1959-12-14 1962-10-09 Ismach Aaron Multi-dose jet injection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143737A (en) * 1982-05-27 1985-02-20 Preci Tech Ltd Needleless injector

Also Published As

Publication number Publication date
CH391964A (en) 1965-05-15
NL268186A (en)
US3130723A (en) 1964-04-28
DE1287743B (en) 1969-01-23
NL133848C (en)

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