WO2008111931A1 - Seringue - Google Patents

Seringue Download PDF

Info

Publication number
WO2008111931A1
WO2008111931A1 PCT/US2007/006128 US2007006128W WO2008111931A1 WO 2008111931 A1 WO2008111931 A1 WO 2008111931A1 US 2007006128 W US2007006128 W US 2007006128W WO 2008111931 A1 WO2008111931 A1 WO 2008111931A1
Authority
WO
WIPO (PCT)
Prior art keywords
barrel
plunger
needle holder
needle
fingers
Prior art date
Application number
PCT/US2007/006128
Other languages
English (en)
Inventor
William R. Knepshield
Original Assignee
Knepshield William R
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 Knepshield William R filed Critical Knepshield William R
Priority to PCT/US2007/006128 priority Critical patent/WO2008111931A1/fr
Publication of WO2008111931A1 publication Critical patent/WO2008111931A1/fr

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    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
    • A61M5/3234—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
    • A61M2005/3236—Trigger provided at the distal end, i.e. syringe end for mounting a needle

Definitions

  • This invention relates to safety syringes, and more particularly to disposable safety syringes of the type in which, following a single use, for example the administration of an injection, the needle of the syringe can be engaged by the plunger, and withdrawn into the interior of the syringe barrel, where it cannot cause injury.
  • the needle holder has a pair of diametrically opposite, resilient fingers 48 and 50. These fingers are preferably molded as a unit with the needle holder. They extend proximally from the needle holder. Finger 48 has a projection 52, which extends radially outward, and into a recess 54 formed in the inner wall of the barrel. The recess 54 is seen in FIGs. 2 and 3. Finger 50 has a similar projection, which also extends into a recess formed in the inner wall of the barrel. The recesses can be separate recesses, or parts of a single annular groove. Fingers 48 and 50 have triangular notches shaped to mate with the triangular projections on fingers 36 and 38, the notch 56 in finger 48 being shown in FIG. 2.
  • An insert 60 depicted schematically in FIG. 1 cooperates with a cam-shaped annulus 62 formed on the plunger, to prevent the plunger from being pushed inward after the needle is withdrawn into the interior of the barrel.
  • a cam-shaped annulus 62 formed on the plunger, to prevent the plunger from being pushed inward after the needle is withdrawn into the interior of the barrel.
  • the cooperating fingers on the needle holder ensure that the needle holder is positively secured to the distal end of the barrel so that it cannot be pushed away from its seat and into the barrel as the needle is being accidentally pushed into a vial, or as an injection is being administered.

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

L'invention concerne une seringue de sécurité dans laquelle une aiguille (30) installée sur un porte-aiguille (4) est rétractée dans le cylindre de seringue (2) après usage. Le porte-aiguille présente des doigts (48, 51) souples s'étendant de manière proximale munis des saillies radiales qui pénètrent dans des évidements (54) formés sur la paroi intérieure du cylindre pour maintenir le porte-aiguille en place. Des doigts (36, 38) s'étendant de manière distale sur le piston plongeur (6) coopèrent avec les doigts (48, 50) s'étendant de manière proximale du porte-aiguille pour libérer les saillies à partir des évidements ; des encoches et des saillies coopérant, sur les doigts, verrouillent le porte-aiguille sur piston plongeur de sorte que le porte-aiguille, et l'aiguille fixée sur celui-ci, peut être rétracté dans le cylindre.
PCT/US2007/006128 2007-03-09 2007-03-09 Seringue WO2008111931A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2007/006128 WO2008111931A1 (fr) 2007-03-09 2007-03-09 Seringue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/006128 WO2008111931A1 (fr) 2007-03-09 2007-03-09 Seringue

Publications (1)

Publication Number Publication Date
WO2008111931A1 true WO2008111931A1 (fr) 2008-09-18

Family

ID=39759773

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/006128 WO2008111931A1 (fr) 2007-03-09 2007-03-09 Seringue

Country Status (1)

Country Link
WO (1) WO2008111931A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012095679A1 (fr) * 2011-01-11 2012-07-19 Abu Dhabi National Industrial Projects Co. Seringue de sécurité autobloquante
WO2014165205A1 (fr) * 2013-03-12 2014-10-09 Unitract Syringe Pty Ltd Adaptateurs d'aiguille retractables et seringues de securite
US9526846B2 (en) 2009-08-19 2016-12-27 Safety Syringes, Inc. Patient-contact activated needle stick safety device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3890971A (en) * 1973-10-23 1975-06-24 Thomas A Leeson Safety syringe
US5374250A (en) * 1993-11-01 1994-12-20 Dixon; Richard E. Safety syringe
US20050177107A1 (en) * 2000-05-10 2005-08-11 Dugmore Peter B. Safety syringe assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3890971A (en) * 1973-10-23 1975-06-24 Thomas A Leeson Safety syringe
US5374250A (en) * 1993-11-01 1994-12-20 Dixon; Richard E. Safety syringe
US20050177107A1 (en) * 2000-05-10 2005-08-11 Dugmore Peter B. Safety syringe assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9526846B2 (en) 2009-08-19 2016-12-27 Safety Syringes, Inc. Patient-contact activated needle stick safety device
US10314985B2 (en) 2009-08-19 2019-06-11 Safety Syringes, Inc. Patient-contact activated needle stick safety device
US11400234B2 (en) 2009-08-19 2022-08-02 Safety Syringes, Inc. Patient-contact activated needle stick safety device
WO2012095679A1 (fr) * 2011-01-11 2012-07-19 Abu Dhabi National Industrial Projects Co. Seringue de sécurité autobloquante
WO2014165205A1 (fr) * 2013-03-12 2014-10-09 Unitract Syringe Pty Ltd Adaptateurs d'aiguille retractables et seringues de securite
US8979795B2 (en) 2013-03-12 2015-03-17 Unitract Syringe Pty Ltd. Retractable needle adapters and safety syringes
CN105188813A (zh) * 2013-03-12 2015-12-23 尤尼特拉克特注射器公司 回缩式注射针接合器及安全性注射器
US9757527B2 (en) 2013-03-12 2017-09-12 Unl Holdings Llc Retractable needle adapters and safety syringes
RU2652748C2 (ru) * 2013-03-12 2018-04-28 Юнитрект Сириндж Пти Лтд Адаптер с убирающейся иглой для безопасного шприца

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