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1. WO1996005879 - NEEDLE RETRACTION MECHANISMS

Publication Number WO/1996/005879
Publication Date 29.02.1996
International Application No. PCT/GB1995/001894
International Filing Date 10.08.1995
Chapter 2 Demand Filed 17.02.1996
IPC
A61M 5/19 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
178Syringes
19having more than one chamber
A61M 5/32 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
178Syringes
31Details
32Needles; 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
A61M 5/34 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
178Syringes
31Details
32Needles; 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
34Constructions for connecting the needle
A61M 5/50 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
50having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
CPC
A61M 2005/342
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
178Syringes
31Details
32Needles; Details of needles pertaining to their connection with syringe or hub
34Constructions for connecting the needle ; , e.g. to syringe nozzle or needle hub
342Off-center needles, i.e. needle connections not being coaxial with the longitudinal symmetry axis of syringe barrel
A61M 5/19
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
178Syringes
19having more than one chamber ; , e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly
A61M 5/3234
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
178Syringes
31Details
32Needles; Details of needles pertaining to their connection with syringe or hub
3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
321Means for protection against accidental injuries by used needles
322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
3234Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
A61M 5/508
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
50having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
508Means for preventing re-use by disrupting the piston seal, e.g. by puncturing
Y10S 128/919
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
128Surgery
917Body fluid, devices for protection therefrom, e.g. aids, hepatitus
919Syringe, means to protect user
Applicants
  • NMT GROUP PLC [GB/GB]; Caledonian House Phoenix Crescent Strathclyde Business Park Bellshill, Lanarkshire ML4 3NJ, GB (AllExceptUS)
  • McMAHON, Keith, Herd, Younie [GB/GB]; GB (UsOnly)
Inventors
  • McMAHON, Keith, Herd, Younie; GB
Agents
  • McNEIGHT, David, Leslie ; McNeight & Lawrence Regent House Heaton Lane Stockport Cheshire SK4 1BS, GB
Priority Data
9416710.318.08.1994GB
9509224.305.05.1995GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) NEEDLE RETRACTION MECHANISMS
(FR) MECANISMES DE RAPPEL D'AIGUILLE
Abstract
(EN)
There is disclosed a fluid handling device (2) having a needle retraction assembly adapted to bring about the retraction of a hollow needle (10) after use comprising a hollow body portion (4) provided at one end thereof with an end wall having a mounting portion (8) including a needle passage, and a hollow needle (10) having a mounting means and adapted to be movable between a first position in which a leading end portion of the needle protrudes from a front end portion of said mounting portion (8) and a second position in which the needle is withdrawn within the hollow body portion (4), said mounting means including resilient means (28) that act to bias the needle (10) into the second, withdrawn, position, said needle (10) being provided with an enlarged portion (18) at a location spaced from the leading end portion thereof, there being provided retaining means to maintain the needle in its first position until use is completed, said retaining means comprising in combination an O-ring (20) positioned in a circumferential groove (19) in said enlarged portion (18) and abutting the end of a sleeve (36) which can be forced forwardly to dislodge the O-ring (20) so as to permit the needle (10) to move from its first position into its second position under the influence of said resilient means (28).
(FR)
L'invention concerne un dispositif de refoulement de liquide (2) muni d'un ensemble conçu pour le rappel d'une aiguille creuse (10) après utilisation. Le dispositif est constitué d'un corps creux (4) dont l'une des parois d'extrémité comporte une partie support (8) ayant un passage d'aiguille, et d'une aiguille creuse (10) dotée d'un bâti, mobile entre une première position à partir de laquelle son extrémité antérieure déborde de l'extrémité de la partie support susmentionnée et une seconde position où elle se trouve en retrait dans le corps creux (4). Ledit support (8) comporte un dispositif élastique (28) qui pousse l'aiguille (10) vers cette seconde position de retrait. L'aiguille (10) comporte une partie élargie (18) à une certaine distance de son extrémité antérieure et un système de retenue qui la maintient dans sa position initiale jusqu'à la fin de l'opération. Ledit système de retenue comporte, dans une rainure circulaire (19) de la partie élargie susmentionnée (18), un joint torique (20) butant sur l'extrémité d'un manchon (36) qu'il est possible de pousser pour déloger le joint torique (20) afin que l'aiguille (10) passe de la première à la seconde position par le truchement du dispositif élastique (28).
Also published as
CZPV1997-349
FI970632
KR1019970700664
NO19970700
NZ291205
SK16197
SK199700161
Latest bibliographic data on file with the International Bureau