WO1999062579A1 - Aiguille hypodermique - Google Patents

Aiguille hypodermique Download PDF

Info

Publication number
WO1999062579A1
WO1999062579A1 PCT/GB1999/001006 GB9901006W WO9962579A1 WO 1999062579 A1 WO1999062579 A1 WO 1999062579A1 GB 9901006 W GB9901006 W GB 9901006W WO 9962579 A1 WO9962579 A1 WO 9962579A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
sheath
syringe
connection
barrel
Prior art date
Application number
PCT/GB1999/001006
Other languages
English (en)
Inventor
John Targell
Original Assignee
Nmt Group Plc
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 Nmt Group Plc filed Critical Nmt Group Plc
Priority to AU33385/99A priority Critical patent/AU3338599A/en
Publication of WO1999062579A1 publication Critical patent/WO1999062579A1/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
    • A61M5/3202—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
    • A61M5/178—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
    • 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
    • A61M5/002—Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics

Definitions

  • This invention concerns a hypodermic needle assembly adapted for connection to the barrel of a hypodermic syringe.
  • a needle assembly is provided in a protective sheath having one end closed until the assembly is required for use by a sterile seal, for example a tear-off strip of foil. Once the foil is removed, care is needed to ensure that the assembly does not drop from the sheath onto an unsterile surface. Even when the assembly is removed with care, there is a danger of the needle causing injury or becoming contaminated during the operation of connecting the assembly to a syringe.
  • a sterile seal for example a tear-off strip of foil.
  • a hypodermic needle assembly for connection to the barrel of a syringe and a protective sheath enclosing the assembly until required for use, the assembly and sheath having interengaging means to hold the assembly within the sheath, characterised in that the length of the sheath is such that the rim of its open end engages the barrel of the syringe before connection with the syringe is complete whereby completion of the connection forces disengagement of the interengaging means.
  • the interengaging means may comprise a circumferential rib on the assembly and an indent on the sheath.
  • the assembly may connect with the syringe by means of a screw thread.
  • the assembly may connect with the syringe by means of a bayonet-type connection.
  • Figure 1 shows a side elevation of the needle assembly and sheath
  • Figure 2 shows a cross-section through the needle assembly and sheath on the line II-II of Figure 1
  • Figure 3 shows a cross-section through the needle assembly and sheath on the line III-III of Figure 2;
  • Figures 4 to 7 show fragmentary cross-sections on an enlarged scale of successive stages in the connection of the needle assembly with the barrel of a hypodermic syringe.
  • the needle assembly is generally of the kind disclosed in our European Patent No.0776 225 providing for automatic retraction of the needle 10 into the body of the syringe after administration of an injection.
  • the needle assembly includes an end cap 11 from which the needle 10 extends and a threaded boss 12 adapted to engage with a threaded socket 13 on the forward end of a syringe barrel 14 to connect the needle assembly with the barrel 14.
  • the assembly is retained, until required for use, in a protective and sterile sheath 16 whose open end is initially closed by a tear-off strip 17 of foil.
  • a circumferential rib 18 on the assembly engages a circumferential indent 19 within the sheath 16 to hold the assembly within the sheath and prevent it from falling therefrom.
  • the outer surface of the sheath 16 is knurled at 20 to facilitate its rotation to threadedly engage the boss 12 with the socket 13, torsional forces applied to the sheath 16 being transmitted to the needle assembly by a splined connection between the sheath and assembly comprised by teeth 21 extending outwardly from the end cap 11 engaging keyways 22 in the sheath.
  • the length of the sheath 16 is such that, after removal of the strip 17, the rim of its open end engages the barrel 14 before the threaded connection between the boss 12 and socket 13 is complete whereby completion of the connection forces the sheath forwardly to disengage the rib 18 from the indent 19 and allow the sheath to be removed as shown in Figures 4-7.
  • the needle is contained within the sheath throughout the connection operation reducing the risk of injury or contamination.
  • the assembly may connect with the barrel by way of a bayonet-type connection.
  • interengaging means between assembly and sheath may be a frangible connection.

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (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 combinaison d'un ensemble à aiguille hypodermique pour la connexion au corps (14) d'une seringue et d'une enveloppe protectrice (16) entourant l'ensemble, tel que requis pour l'utilisation, l'ensemble et l'enveloppe (16) présentant des moyens d'engagement réciproque (18, 19) pour maintenir l'ensemble dans l'enveloppe (16). L'invention est caractérisée en ce que la longueur de l'enveloppe (16) est telle que la bordure de son extrémité ouverte coopère avec le corps de seringue (14), avant que la connexion avec la seringue soit réalisée, permettant ainsi aux forces de connexion de se libérer complètement des moyens d'engagement réciproque (18, 19).
PCT/GB1999/001006 1998-05-30 1999-03-31 Aiguille hypodermique WO1999062579A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33385/99A AU3338599A (en) 1998-05-30 1999-03-31 Hypodermic needle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9811603.1A GB9811603D0 (en) 1998-05-30 1998-05-30 Hypodermic needle
GB9811603.1 1998-05-30

Publications (1)

Publication Number Publication Date
WO1999062579A1 true WO1999062579A1 (fr) 1999-12-09

Family

ID=10832933

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/001006 WO1999062579A1 (fr) 1998-05-30 1999-03-31 Aiguille hypodermique

Country Status (5)

Country Link
AR (1) AR019565A1 (fr)
AU (1) AU3338599A (fr)
GB (1) GB9811603D0 (fr)
ID (1) ID23601A (fr)
WO (1) WO1999062579A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6913595B2 (en) 2000-12-22 2005-07-05 Nicodel S.A. Medical device and locking mechanism therefor
WO2008019035A2 (fr) * 2006-08-03 2008-02-14 Becton, Dickinson And Company Seringue à aiguille détachable doté d'un espace mort réduit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1558713A (fr) * 1967-03-14 1969-02-28
WO1988006463A1 (fr) * 1987-03-06 1988-09-07 The Secretary Of State For Defence In Her Britanni Aiguille hypodermique et unite de logement
US4927019A (en) * 1989-06-12 1990-05-22 Habley Medical Technology Corporation Combination needle sheath and sterility package
FR2665079A1 (fr) * 1990-07-27 1992-01-31 Conception Fabr Innovations Me Seringue a aiguille jetable.
EP0776225A1 (fr) 1994-08-18 1997-06-04 NMT Group PLC Mecanismes de rappel d'aiguille

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1558713A (fr) * 1967-03-14 1969-02-28
WO1988006463A1 (fr) * 1987-03-06 1988-09-07 The Secretary Of State For Defence In Her Britanni Aiguille hypodermique et unite de logement
US4927019A (en) * 1989-06-12 1990-05-22 Habley Medical Technology Corporation Combination needle sheath and sterility package
FR2665079A1 (fr) * 1990-07-27 1992-01-31 Conception Fabr Innovations Me Seringue a aiguille jetable.
EP0776225A1 (fr) 1994-08-18 1997-06-04 NMT Group PLC Mecanismes de rappel d'aiguille

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6913595B2 (en) 2000-12-22 2005-07-05 Nicodel S.A. Medical device and locking mechanism therefor
WO2008019035A2 (fr) * 2006-08-03 2008-02-14 Becton, Dickinson And Company Seringue à aiguille détachable doté d'un espace mort réduit
WO2008019035A3 (fr) * 2006-08-03 2009-12-10 Becton, Dickinson And Company Seringue à aiguille détachable doté d'un espace mort réduit
JP2010504106A (ja) * 2006-08-03 2010-02-12 ベクトン・ディキンソン・アンド・カンパニー 縮小されたデッドスペースを有する着脱自在なニードルシリンジ

Also Published As

Publication number Publication date
GB9811603D0 (en) 1998-07-29
AU3338599A (en) 1999-12-20
ID23601A (id) 2000-05-04
AR019565A1 (es) 2002-02-27

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