WO2004039441A3 - Vacuum auto-retractable safety syringe - Google Patents

Vacuum auto-retractable safety syringe Download PDF

Info

Publication number
WO2004039441A3
WO2004039441A3 PCT/IB2003/004784 IB0304784W WO2004039441A3 WO 2004039441 A3 WO2004039441 A3 WO 2004039441A3 IB 0304784 W IB0304784 W IB 0304784W WO 2004039441 A3 WO2004039441 A3 WO 2004039441A3
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
sealing member
syringe
vacuum
safety syringe
Prior art date
Application number
PCT/IB2003/004784
Other languages
French (fr)
Other versions
WO2004039441A2 (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
Priority to EP03758445A priority Critical patent/EP1556109A2/en
Priority to AU2003274470A priority patent/AU2003274470A1/en
Priority to CA002504130A priority patent/CA2504130A1/en
Publication of WO2004039441A2 publication Critical patent/WO2004039441A2/en
Publication of WO2004039441A3 publication Critical patent/WO2004039441A3/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    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • 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
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • 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
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M2005/31508—Means for blocking or restricting the movement of the rod or piston provided on the 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
    • A61M5/3205—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
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3241—Needle retraction energy is accumulated inside of a hollow plunger rod
    • A61M2005/3242—Needle retraction by vacuum
    • 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
    • A61M5/3148—Means for causing or aiding aspiration or plunger retraction
    • 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

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 syringe has a hollow body 10, a plunger 20 slidably mounted in the body 10 and a needle 44 mounted at a first end of the body 10. A first sealing member 30, at a first end of the plunger 20 and within the body, slidably seals against the body 10. A second sealing member seals against the body and slidably seals against the plunger shaft 22, the second sealing member 60 being positioned between the first sealing member 30 and a second, opposing end of the body. Pushing the plunger 20 into the body 10 creates a vacuum between the first and second sealing members 30, 60. This can be used to draw liquid into the syringe for injection. Alternatively, the vacuum can be used to retract the needle 44 automatically into the body 10, if the plunger 20 is first pushed in a sufficient amount. A portion of the plunger 20 is easily broken off after use to ensure that the syringe cannot be re-used.
PCT/IB2003/004784 2002-10-30 2003-10-27 Vacuum auto-retractable safety syringe WO2004039441A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03758445A EP1556109A2 (en) 2002-10-30 2003-10-27 Vacuum auto-retractable safety syringe
AU2003274470A AU2003274470A1 (en) 2002-10-30 2003-10-27 Vacuum auto-retractable safety syringe
CA002504130A CA2504130A1 (en) 2002-10-30 2003-10-27 Vacuum auto-retractable safety syringe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG200206553 2002-10-30
SGSG200206553-0 2002-10-30

Publications (2)

Publication Number Publication Date
WO2004039441A2 WO2004039441A2 (en) 2004-05-13
WO2004039441A3 true WO2004039441A3 (en) 2004-09-02

Family

ID=32227997

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/004784 WO2004039441A2 (en) 2002-10-30 2003-10-27 Vacuum auto-retractable safety syringe

Country Status (4)

Country Link
EP (1) EP1556109A2 (en)
AU (1) AU2003274470A1 (en)
CA (1) CA2504130A1 (en)
WO (1) WO2004039441A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080161760A1 (en) * 2004-08-20 2008-07-03 Medigard Limited Medical Device Containing a Vacuum Chamber
WO2010091132A1 (en) * 2009-02-04 2010-08-12 Mallinckrodt Inc. Hand-actuated syringe with vacuum chamber for auto refill
WO2013140380A2 (en) * 2012-03-23 2013-09-26 Wolfe Tory Medical, Inc Auto-disable syringe assembly
WO2014072993A2 (en) * 2012-11-08 2014-05-15 Rathore Jai Hind Folded- plunger auto-retractable disposable syringe
WO2014072994A2 (en) * 2012-11-08 2014-05-15 Rathore Jai Hind Folded plunger auto retractable syringe for single use
WO2014080420A2 (en) * 2012-11-26 2014-05-30 Rathore Jai Hind Vacuum-retractable safety (vrs) syringe for single use
CN103961770A (en) * 2014-04-04 2014-08-06 安徽省康宁实业（集团）有限公司 Disposable germfree self-destruction type liquid medicine injector
WO2020051782A1 (en) * 2018-09-12 2020-03-19 苏宣维 Self-destruction injection safety needle
CN110812607A (en) * 2019-12-09 2020-02-21 湖南平安医械科技有限公司 Vacuum self-destruction safety syringe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0480862A1 (en) * 1990-10-09 1992-04-15 Adolfo Ibanez Garcia Single use syringe with automatic safety mechanism
US5578015A (en) * 1989-09-18 1996-11-26 Robb Pascal Patent Limited Safety syringe incorporating automatic needle holder release
WO1997044076A1 (en) * 1996-05-23 1997-11-27 Fernando Melero Redrado Disposable syringe
US6413236B1 (en) * 1999-10-08 2002-07-02 Lewis R. Van Dyke Automatically retractable needle safety syringe
US6458105B1 (en) * 2001-02-22 2002-10-01 Maxxon, Inc. Disposable syringe having a retractable needle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5578015A (en) * 1989-09-18 1996-11-26 Robb Pascal Patent Limited Safety syringe incorporating automatic needle holder release
EP0480862A1 (en) * 1990-10-09 1992-04-15 Adolfo Ibanez Garcia Single use syringe with automatic safety mechanism
WO1997044076A1 (en) * 1996-05-23 1997-11-27 Fernando Melero Redrado Disposable syringe
US6413236B1 (en) * 1999-10-08 2002-07-02 Lewis R. Van Dyke Automatically retractable needle safety syringe
US6458105B1 (en) * 2001-02-22 2002-10-01 Maxxon, Inc. Disposable syringe having a retractable needle

Also Published As

Publication number Publication date
CA2504130A1 (en) 2004-05-13
WO2004039441A2 (en) 2004-05-13
EP1556109A2 (en) 2005-07-27
AU2003274470A1 (en) 2004-05-25

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