WO2008045161A3 - Triggering mechanism for needle-free injector - Google Patents

Triggering mechanism for needle-free injector Download PDF

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Publication number
WO2008045161A3
WO2008045161A3 PCT/US2007/018853 US2007018853W WO2008045161A3 WO 2008045161 A3 WO2008045161 A3 WO 2008045161A3 US 2007018853 W US2007018853 W US 2007018853W WO 2008045161 A3 WO2008045161 A3 WO 2008045161A3
Authority
WO
WIPO (PCT)
Prior art keywords
recoil
restriction
injection
drug delivery
actuation system
Prior art date
Application number
PCT/US2007/018853
Other languages
French (fr)
Other versions
WO2008045161A2 (en
Inventor
Daniel E Williamson
Ryan R Beylund
Original Assignee
Bioject Inc
Daniel E Williamson
Ryan R Beylund
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 Bioject Inc, Daniel E Williamson, Ryan R Beylund filed Critical Bioject Inc
Priority to EP07837389.1A priority Critical patent/EP2076301A4/en
Publication of WO2008045161A2 publication Critical patent/WO2008045161A2/en
Publication of WO2008045161A3 publication Critical patent/WO2008045161A3/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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • 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
    • A61M2005/3123—Details having air entrapping or venting means, e.g. purging channels in pistons
    • 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
    • A61M5/2053—Media being expelled from injector by pressurised fluid or vacuum

Abstract

Needle-free hypodermic jet injection devices having an actuation system to effect an injection from a drug delivery system. The actuation system includes an injection force assembly adapted to transmit a driving force to the drug delivery system. The actuation system further includes a trigger assembly adapted to alter the actuation system between a plurality of configurations including a fired configuration in which the injection force assembly transmits a driving force to the drug delivery system. In some embodiments, the device has a recoil restriction system including a restriction member adapted to couple the recoil restriction system to the trigger assembly and a recoil member coupled to the injection force assembly and movable relative to the restriction member. The restriction member limits movement of the recoil member once the recoil member moves a predetermined distance relative to the restriction member.
PCT/US2007/018853 2006-10-06 2007-08-27 Triggering mechanism for needle-free injector WO2008045161A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07837389.1A EP2076301A4 (en) 2006-10-06 2007-08-27 Triggering mechanism for needle-free injector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/539,585 2006-10-06
US11/539,585 US7547293B2 (en) 2006-10-06 2006-10-06 Triggering mechanism for needle-free injector

Publications (2)

Publication Number Publication Date
WO2008045161A2 WO2008045161A2 (en) 2008-04-17
WO2008045161A3 true WO2008045161A3 (en) 2008-11-13

Family

ID=39275531

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/018853 WO2008045161A2 (en) 2006-10-06 2007-08-27 Triggering mechanism for needle-free injector

Country Status (3)

Country Link
US (2) US7547293B2 (en)
EP (1) EP2076301A4 (en)
WO (1) WO2008045161A2 (en)

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EP2076301A2 (en) 2009-07-08
EP2076301A4 (en) 2013-05-01
US20080086079A1 (en) 2008-04-10
US7547293B2 (en) 2009-06-16
US20090247940A1 (en) 2009-10-01
WO2008045161A2 (en) 2008-04-17
US8105272B2 (en) 2012-01-31

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