WO2012154025A3 - An improved needleless hypodermic injection device - Google Patents

An improved needleless hypodermic injection device Download PDF

Info

Publication number
WO2012154025A3
WO2012154025A3 PCT/MY2012/000057 MY2012000057W WO2012154025A3 WO 2012154025 A3 WO2012154025 A3 WO 2012154025A3 MY 2012000057 W MY2012000057 W MY 2012000057W WO 2012154025 A3 WO2012154025 A3 WO 2012154025A3
Authority
WO
WIPO (PCT)
Prior art keywords
injector
injection device
hypodermic injection
needleless hypodermic
spring
Prior art date
Application number
PCT/MY2012/000057
Other languages
French (fr)
Other versions
WO2012154025A2 (en
Inventor
Kam Meng THAI
Chun Teng Tan
Original Assignee
Mht Injex Sdn. Bhd.
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 Mht Injex Sdn. Bhd. filed Critical Mht Injex Sdn. Bhd.
Publication of WO2012154025A2 publication Critical patent/WO2012154025A2/en
Publication of WO2012154025A3 publication Critical patent/WO2012154025A3/en

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
    • A61M2005/2073—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically preventing premature release, e.g. by making use of a safety lock
    • 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
    • A61M5/2033—Spring-loaded one-shot injectors with or without automatic needle insertion
    • 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
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose

Abstract

The present invention relates to an improved needleless hypodermic injection device (10). Accordingly, the needleless hypodermic injection device (10) includes: (a) an injector (12) having a housing (13) formed by first and second housing sections; (b) a spring injector mechanism (14) in associated with a piston (16) disposed within the injector (12); (c) a trigger (20) having a stopper (22) and in associated with a return spring (23) pivotally mounted to the injector (12); (d) a safety lock (30) slidably attached to the injector (12) to prevent undesired release movement of the trigger (20); wherein the piston (16) is in associated with a compression spring (15) and is capable to provide two different setting of spring loaded force for both low and height doses injection.
PCT/MY2012/000057 2011-05-12 2012-03-16 An improved needleless hypodermic injection device WO2012154025A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2011002145 2011-05-12
MYPI2011002145A MY155392A (en) 2011-05-12 2011-05-12 An improved needleless hypodermic injection device

Publications (2)

Publication Number Publication Date
WO2012154025A2 WO2012154025A2 (en) 2012-11-15
WO2012154025A3 true WO2012154025A3 (en) 2013-01-03

Family

ID=47139845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MY2012/000057 WO2012154025A2 (en) 2011-05-12 2012-03-16 An improved needleless hypodermic injection device

Country Status (2)

Country Link
MY (1) MY155392A (en)
WO (1) WO2012154025A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105477749A (en) * 2016-01-13 2016-04-13 北京步腾医学科技有限公司 Disposable needle-free spring syringe
US11752269B2 (en) 2019-12-18 2023-09-12 Integrimedical Llc Spring loaded medical needle-free injection system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5024656A (en) * 1988-08-30 1991-06-18 Injet Medical Products, Inc. Gas-pressure-regulated needleless injection system
US5569189A (en) * 1992-09-28 1996-10-29 Equidyne Systems, Inc. hypodermic jet injector
US20010051789A1 (en) * 2000-04-07 2001-12-13 Parsons J. Stuart Low cost disposable needleless injector system for variable and fixed dose applications
US20030196928A1 (en) * 2002-04-19 2003-10-23 Parsons J. Stuart Multi-component ampule

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5024656A (en) * 1988-08-30 1991-06-18 Injet Medical Products, Inc. Gas-pressure-regulated needleless injection system
US5569189A (en) * 1992-09-28 1996-10-29 Equidyne Systems, Inc. hypodermic jet injector
US20010051789A1 (en) * 2000-04-07 2001-12-13 Parsons J. Stuart Low cost disposable needleless injector system for variable and fixed dose applications
US20030196928A1 (en) * 2002-04-19 2003-10-23 Parsons J. Stuart Multi-component ampule

Also Published As

Publication number Publication date
MY155392A (en) 2015-10-15
WO2012154025A2 (en) 2012-11-15

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