UA92005C2 - Auto retractable syringe - Google Patents

Auto retractable syringe

Info

Publication number
UA92005C2
UA92005C2 UAA200711347A UAA200711347A UA92005C2 UA 92005 C2 UA92005 C2 UA 92005C2 UA A200711347 A UAA200711347 A UA A200711347A UA A200711347 A UAA200711347 A UA A200711347A UA 92005 C2 UA92005 C2 UA 92005C2
Authority
UA
Ukraine
Prior art keywords
needle hub
needle
barrel
groove
spring
Prior art date
Application number
UAA200711347A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Грейм Френсис Волтон
Аллан Волш
Original Assignee
Глоубал Медисейф Голдингс Лимитед
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
Priority claimed from AU2005901208A external-priority patent/AU2005901208A0/en
Application filed by Глоубал Медисейф Голдингс Лимитед filed Critical Глоубал Медисейф Голдингс Лимитед
Publication of UA92005C2 publication Critical patent/UA92005C2/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    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
    • 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
    • A61M2005/31516—Piston or piston-rod constructions, e.g. connection of piston with piston-rod reducing dead-space in the syringe barrel after delivery
    • 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
    • A61M2005/3235—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user triggered by radial deflection of the anchoring parts between needle mount and syringe barrel or needle housing, e.g. spreading of needle mount retaining hooks having slanted surfaces by engagement with correspondingly shaped surfaces on the piston at the end of an injection stroke
    • 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
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps
    • 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
    • A61M5/508—Means for preventing re-use by disrupting the piston seal, e.g. by puncturing

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

An auto-retractable safety syringe comprising a syringe barrel (12) having a hollow plunger (13) slideably located therein. The needle assembly comprises a needle and a needle hub (17), with a groove in the end of the barrel (12) to hold the needle hub (17) and a spring disposed over said needle hub (17) and acting between the needle hub (17) and the end of the barrel (12). The needle hub (17) has a groove around its circumference in which a locking means mates so as to retain the needle hub (17) in the end of the syringe barrel (12) during use. The plunger (13) upon completion of an injection and when further depressed activates auto retraction of the needle hub (17) by dislodging said locking means from said groove to release the needle hub (17) hence allowing the needle and spring to retract inside the hollow plunger (13) under the influence of the spring.
UAA200711347A 2005-03-14 2006-03-14 Auto retractable syringe UA92005C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2005901208A AU2005901208A0 (en) 2005-03-14 Exchange needle auto retractable syringe

Publications (1)

Publication Number Publication Date
UA92005C2 true UA92005C2 (en) 2010-09-27

Family

ID=36991179

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA200711347A UA92005C2 (en) 2005-03-14 2006-03-14 Auto retractable syringe

Country Status (4)

Country Link
CN (1) CN101175522A (en)
UA (1) UA92005C2 (en)
WO (1) WO2006096901A1 (en)
ZA (1) ZA200708682B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007013096U1 (en) * 2007-09-19 2009-03-05 Hamilton Bonaduz Ag Syringe with exchangeable needle
CN101927048B (en) * 2009-06-24 2012-03-21 张淑茗 Retraction structure for safety syringe
CN101601882B (en) * 2009-07-15 2012-02-01 无锡市宇寿医疗器械股份有限公司 Disposable safety syringe with replaceable and automatically retracted needle
CN106668989B (en) * 2015-11-10 2021-11-09 C-La中国有限公司 Retractable syringe
EA036074B1 (en) 2015-11-10 2020-09-23 Глобал Медисейф Холдингз Лтд Retractable syringe
WO2018028780A1 (en) * 2016-08-10 2018-02-15 Saga Surgical Ab A biopsy needle arrangement
CN107457161A (en) * 2017-09-18 2017-12-12 湖北云万光电子科技有限公司 A kind of connector-cable point glue equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019044A (en) * 1989-08-14 1991-05-28 Tsao Chien Hua Safety hypodermic syringe
FR2755614A1 (en) * 1996-11-13 1998-05-15 Dufort Maurice Louis Hypodermic syringe
US6183440B1 (en) * 2000-05-25 2001-02-06 Becton, Dickinson And Company Hypodermic syringe having a selectively retractable needle
EP1438979A1 (en) * 2002-12-19 2004-07-21 Henrik Brocks Disposable hypodermic syringe

Also Published As

Publication number Publication date
WO2006096901A1 (en) 2006-09-21
ZA200708682B (en) 2008-10-29
CN101175522A (en) 2008-05-07

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