GB993309A - Improved hypodermic injector - Google Patents
Improved hypodermic injectorInfo
- Publication number
- GB993309A GB993309A GB1303861A GB1303861A GB993309A GB 993309 A GB993309 A GB 993309A GB 1303861 A GB1303861 A GB 1303861A GB 1303861 A GB1303861 A GB 1303861A GB 993309 A GB993309 A GB 993309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ampoule
- springs
- guide
- injector
- plunger
- 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
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
- A61M5/2422—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule
- A61M5/2425—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule by compression of deformable ampoule or carpule wall
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
993,309. Hypodermic injectors. EXPRESS INJECTOR CO. Ltd. April 6, 1962 [April 11, 1961], No. 13038/61. Heading A5R. A hypodermic injector comprises a housing 10 surrounding the nearly uniform thin walls of an ampoule 11 to support it against any expansion when means 15 impart to its rear end first a percussive force to produce a transient high pressure which discharges medicament from the ampoule followed by a compressive force capable of introverting the ampoule as in Fig. 2 and discharging the remaining medicament from it at a reduced pressure. The front end of the ampoule may be closed by a plug 12 with a minute orifice 13 enabling the medicament to pierce the skin without use of a hypodermic needle or the plug 43 as in Fig. 7 may be of plastic formed with a thin walled nozzle 43 of large bore to cooperate with an orifice 44 formed in the cap 44 which holds the ampoule in the housing of the injector. The rear, thin wall of the ampoule may be flat, stepped annularly as in Fig. 3, or annularly bevelled (Fig. 5, not shown). The plug 43 is assembled to the ampoule shell 42 with a gap 49 which is taken up when the ampoule is screwed home in the housing by the cap 44, thereby ejecting any air bubbles present in the ampoule. The plunger 15 which applies the load to the ampoule is driven by a guide 18 which compresses springs 21 and 22 between a flange on its lower end and a flange on a guide member 17 which is held on the injector casing 16 by a screwed cap 29 which can be turned to adjust the tension of the springs. The guide 18 is mounted telescopically on the member 17 and the springs are held in compression by balls 26 located in holes 25 in the guide member 17 which are locked in a groove 18a around the inside of the member 18 by the conical end 23a of a plunger 23 on a button 28 which is movable with respect to the member 17 against a spring 24. When the button 28 is depressed the plunger head 23a frees the balls 26 from the groove 18a allowing the guide 18 to fly forward and strike the plunger 15 a blow which is followed by a steady pressure, due to the residual compression on the springs. A loading device (not shown) is provided for putting the initial compression on the springs 21 and 22. The members 17 and 18 can be locked together by rotation of a ring 34 on the member 17. Specifications 964,584 and 964,585 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1303861A GB993309A (en) | 1961-04-11 | 1961-04-11 | Improved hypodermic injector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1303861A GB993309A (en) | 1961-04-11 | 1961-04-11 | Improved hypodermic injector |
Publications (1)
Publication Number | Publication Date |
---|---|
GB993309A true GB993309A (en) | 1965-05-26 |
Family
ID=10015671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1303861A Expired GB993309A (en) | 1961-04-11 | 1961-04-11 | Improved hypodermic injector |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB993309A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2143737A (en) * | 1982-05-27 | 1985-02-20 | Preci Tech Ltd | Needleless injector |
WO1995003844A1 (en) * | 1993-07-31 | 1995-02-09 | Weston Medical Limited | Needle-less injector |
US5480381A (en) * | 1991-08-23 | 1996-01-02 | Weston Medical Limited | Needle-less injector |
WO1996024398A1 (en) * | 1995-02-06 | 1996-08-15 | Weston Medical Limited | Needle-less injector |
DE29507987U1 (en) * | 1995-05-15 | 1996-09-19 | Ferton Holding, Delemont | Ejection device for high pressure ejection of a liquid |
EP1125593A1 (en) * | 2000-02-16 | 2001-08-22 | Roche Diagnostics GmbH | Hypodermic needleless injection system |
WO2004037328A2 (en) * | 2002-10-22 | 2004-05-06 | The Medical House Plc | Needleless injection device |
WO2004037327A2 (en) * | 2002-10-22 | 2004-05-06 | The Medical House Plc | Needleless injection device |
US7615234B2 (en) | 2001-09-11 | 2009-11-10 | Glide Pharmaceutical Technologies Limited | Drug delivery technology |
US7727223B2 (en) | 2001-09-11 | 2010-06-01 | Glide Pharmaceutical Technologies Limited | Drug delivery technology |
US7862543B2 (en) | 2002-08-05 | 2011-01-04 | Glide Pharmaceutical Technologies Limited | Drug delivery system |
US9072472B2 (en) | 2005-02-07 | 2015-07-07 | Glide Pharmaceutical Technologies Limited | Disposable assembly containing a skin piercing element |
CN110354341A (en) * | 2019-08-26 | 2019-10-22 | 苏州大藤医疗器械有限公司 | A kind of needleless injector |
CN110882442A (en) * | 2018-09-07 | 2020-03-17 | 群康生技股份有限公司 | Injector propulsion device |
WO2021043475A1 (en) * | 2019-09-04 | 2021-03-11 | Henke-Sass, Wolf Gmbh | Device for administering a fluid |
WO2021043476A1 (en) * | 2019-09-04 | 2021-03-11 | Henke-Sass, Wolf Gmbh | Device for administering a fluid |
EP2340864B2 (en) † | 2005-12-08 | 2021-10-13 | Owen Mumford Limited | Substance delivery device |
US11839748B2 (en) | 2018-09-07 | 2023-12-12 | Cc Biotechnology Corporation | Plunging apparatus for syringe |
-
1961
- 1961-04-11 GB GB1303861A patent/GB993309A/en not_active Expired
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2143737A (en) * | 1982-05-27 | 1985-02-20 | Preci Tech Ltd | Needleless injector |
US5480381A (en) * | 1991-08-23 | 1996-01-02 | Weston Medical Limited | Needle-less injector |
WO1995003844A1 (en) * | 1993-07-31 | 1995-02-09 | Weston Medical Limited | Needle-less injector |
US5891086A (en) * | 1993-07-31 | 1999-04-06 | Weston Medical Limited | Needle-less injector |
EP1020200A2 (en) * | 1993-07-31 | 2000-07-19 | Weston Medical Limited | Needle-less injector |
EP1020200A3 (en) * | 1993-07-31 | 2001-12-05 | Weston Medical Limited | Needle-less injector |
WO1996024398A1 (en) * | 1995-02-06 | 1996-08-15 | Weston Medical Limited | Needle-less injector |
DE29507987U1 (en) * | 1995-05-15 | 1996-09-19 | Ferton Holding, Delemont | Ejection device for high pressure ejection of a liquid |
EP1125593A1 (en) * | 2000-02-16 | 2001-08-22 | Roche Diagnostics GmbH | Hypodermic needleless injection system |
US6440099B2 (en) | 2000-02-16 | 2002-08-27 | Roche Diagnostics Gmbh | Hypodermic needleless injection system |
US7615234B2 (en) | 2001-09-11 | 2009-11-10 | Glide Pharmaceutical Technologies Limited | Drug delivery technology |
US8574188B2 (en) | 2001-09-11 | 2013-11-05 | Glide Pharmaceutical Technologies Limited | Drug delivery technology |
US8088406B2 (en) | 2001-09-11 | 2012-01-03 | Glide Pharmaceutical Technologies Limited | Pioneer projectile drug delivery technology |
US7727223B2 (en) | 2001-09-11 | 2010-06-01 | Glide Pharmaceutical Technologies Limited | Drug delivery technology |
US7862543B2 (en) | 2002-08-05 | 2011-01-04 | Glide Pharmaceutical Technologies Limited | Drug delivery system |
EP1545662B1 (en) * | 2002-08-05 | 2020-03-04 | Enesi Pharma Limited | Drug delivery system |
WO2004037327A3 (en) * | 2002-10-22 | 2004-08-26 | Medical House Plc | Needleless injection device |
WO2004037328A3 (en) * | 2002-10-22 | 2004-09-10 | Medical House Plc | Needleless injection device |
WO2004037328A2 (en) * | 2002-10-22 | 2004-05-06 | The Medical House Plc | Needleless injection device |
WO2004037327A2 (en) * | 2002-10-22 | 2004-05-06 | The Medical House Plc | Needleless injection device |
US7744561B2 (en) | 2002-10-22 | 2010-06-29 | The Medical House Plc | Needleless injection device |
US9072472B2 (en) | 2005-02-07 | 2015-07-07 | Glide Pharmaceutical Technologies Limited | Disposable assembly containing a skin piercing element |
EP2340864B2 (en) † | 2005-12-08 | 2021-10-13 | Owen Mumford Limited | Substance delivery device |
CN110882442A (en) * | 2018-09-07 | 2020-03-17 | 群康生技股份有限公司 | Injector propulsion device |
US11839748B2 (en) | 2018-09-07 | 2023-12-12 | Cc Biotechnology Corporation | Plunging apparatus for syringe |
CN110354341A (en) * | 2019-08-26 | 2019-10-22 | 苏州大藤医疗器械有限公司 | A kind of needleless injector |
WO2021043475A1 (en) * | 2019-09-04 | 2021-03-11 | Henke-Sass, Wolf Gmbh | Device for administering a fluid |
WO2021043476A1 (en) * | 2019-09-04 | 2021-03-11 | Henke-Sass, Wolf Gmbh | Device for administering a fluid |
CN114340553A (en) * | 2019-09-04 | 2022-04-12 | 汉克沙斯伍夫公司 | Device for applying a fluid |
CN114340701A (en) * | 2019-09-04 | 2022-04-12 | 汉克沙斯伍夫公司 | Device for applying a fluid |
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