WO2008136775A3 - A safety syringe - Google Patents

A safety syringe Download PDF

Info

Publication number
WO2008136775A3
WO2008136775A3 PCT/SG2008/000162 SG2008000162W WO2008136775A3 WO 2008136775 A3 WO2008136775 A3 WO 2008136775A3 SG 2008000162 W SG2008000162 W SG 2008000162W WO 2008136775 A3 WO2008136775 A3 WO 2008136775A3
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
needle
adaptor
barrel
piston
Prior art date
Application number
PCT/SG2008/000162
Other languages
French (fr)
Other versions
WO2008136775A2 (en
Inventor
Jun Piao Teng
Original Assignee
Jun Piao Teng
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 Jun Piao Teng filed Critical Jun Piao Teng
Publication of WO2008136775A2 publication Critical patent/WO2008136775A2/en
Publication of WO2008136775A3 publication Critical patent/WO2008136775A3/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
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
    • A61M2005/3224—Means to disalign the needle tip and syringe nozzle
    • 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
    • A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
    • A61M2005/5073—Means for preventing re-use by disconnection of piston and piston-rod by breaking or rupturing the connection parts
    • 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
    • A61M5/3129—Syringe barrels
    • A61M5/3134—Syringe barrels characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula
    • 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
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M5/31515—Connection of piston with piston rod
    • 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/344—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using additional parts, e.g. clamping rings or collets
    • A61M5/345—Adaptors positioned between needle hub and syringe nozzle
    • 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (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

A safety syringe comprises: a hollow barrel, a plunger with a piston, a hard rubber adaptor, and a needle. The piston includes a rubber element having a central room space to allow the plunger tip to move axially therein for performing functions to enable drawing fluid starting at Occ level and interlocking respectively. The adaptor affixed at a distal protruding nose of the barrel and the needle is locked at a threaded portion within the adaptor snugly, which includes a female interlocking structure at proximal end to receive a male interlocking structure aligning a loosen means of the plunger, characterized in that the male interlocking structure is loose staying within, carrying the adaptor with the needle into the barrel upon retracting the plunger, in the manner that the loosen adaptor declines together with the needle causing the needle tip declined and is abutted by the base within. Further pulling the plunger, the piston is abutted by the abutting structure of the barrel allowing the plunger to break at a fragile portion provided, thereby absolutely ensuring non-reusable and avoid needle stick injuries.
PCT/SG2008/000162 2007-05-08 2008-05-05 A safety syringe WO2008136775A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG200703149-5 2007-05-08
SG200703149-5A SG148042A1 (en) 2007-05-08 2007-05-08 A safety syringe

Publications (2)

Publication Number Publication Date
WO2008136775A2 WO2008136775A2 (en) 2008-11-13
WO2008136775A3 true WO2008136775A3 (en) 2008-12-24

Family

ID=39944136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2008/000162 WO2008136775A2 (en) 2007-05-08 2008-05-05 A safety syringe

Country Status (2)

Country Link
SG (1) SG148042A1 (en)
WO (1) WO2008136775A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX352993B (en) * 2009-11-11 2017-12-15 Unitract Syringe Pty Ltd Star Vaccination syringe.
US9352104B2 (en) * 2010-05-04 2016-05-31 Unitract Syringe Pty Ltd Syringe barrel adapter and needle assembly
CN202892570U (en) * 2012-02-29 2013-04-24 王祖扬 A need-pullback-type needle-replaceable safe self-destruction syringe
EP2976118A4 (en) * 2013-03-22 2016-11-23 Reprise Technologies Llc System and method for adaptable safety syringe
GB2544278B (en) * 2015-11-10 2017-11-08 Gbuk Group Ltd Syringes and inserts for syringes
US11291772B2 (en) 2017-02-17 2022-04-05 Becton, Dickinson And Company Syringe and plunger rod with stopper guide

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200240724Y1 (en) * 1999-06-24 2001-09-25 총-밍 황 Improvement in the Structure of a Safety Syringe
KR200391370Y1 (en) * 2005-05-16 2005-08-01 최숙녀 A safe syringe
KR100547617B1 (en) * 2003-10-10 2006-02-02 백우인 disposable safety syringe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200240724Y1 (en) * 1999-06-24 2001-09-25 총-밍 황 Improvement in the Structure of a Safety Syringe
KR100547617B1 (en) * 2003-10-10 2006-02-02 백우인 disposable safety syringe
KR200391370Y1 (en) * 2005-05-16 2005-08-01 최숙녀 A safe syringe

Also Published As

Publication number Publication date
WO2008136775A2 (en) 2008-11-13
SG148042A1 (en) 2008-12-31

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