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1. WO2004024215 - SYRINGE WITH RETRACTABLE NEEDLE ASSEMBLY

Publication Number WO/2004/024215
Publication Date 25.03.2004
International Application No. PCT/US2003/029273
International Filing Date 16.09.2003
Chapter 2 Demand Filed 16.04.2004
IPC
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 5/50 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 2005/3235
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322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
3235triggered 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
A61M 2005/3241
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
3241Needle retraction energy is accumulated inside of a hollow plunger rod
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
Applicants
  • FUTURA MEDICAL TECHNOLOGIES, INC. [US]/[US]
Inventors
  • MONTALVO, Rudy
  • FEITH, Raymond, P.
  • MCCONNELL-MONTALVO, Susan
  • MARANO-FORD, April
Agents
  • MCCONAGHY, John, D.
Priority Data
10/247,78116.09.2002US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYRINGE WITH RETRACTABLE NEEDLE ASSEMBLY
(FR) SERINGUE POURVUE D'UNE AIGUILLE RETRACTABLE
Abstract
(EN)
A hypodermic syringe employing a plunger (30) slidably disposed within a barrel (80). The plunger (30) has a mounting hole (50) extending through the seal end (34) thereof to receive a mandrel (56). The mandrel (56) has a flexible flange (64) to be releasably engaged with the plunger (30). A spring element (140) withdraws the mandrel (56) into a cavity (44) within the plunger (30) upon full extension of the plunger (30) within the barrel (80). The barrel (80) includes a hub retainer (86) at the forward end thereof and a needle hub (100) retained therein. The mandrel (56) includes barbed tines (66, 68) with surfaces having axes of the conical surfaces that are displaced from one another such that movement of the tines (66) toward one another also brings the axes closer. A catch (144) associated with the back end of the spring element (140) coupled with the mandrel (56) at the other end cooperates with shoulders on smooth surfaces within the cavities to retain tension within the spring element. The hub retainer (86) and the needle hub (100) cooperate to insure that the needle hub (100) is constrained to limited motion such that the mandrel (56) will fully engage the needle hub (100).
(FR)
L'invention concerne une seringue hypodermique pourvue d'un piston (30) disposé par glissement dans un cylindre (80). Le piston (30) comprend un orifice (50) de montage s'étendant à travers l'extrémité (34) à joint de celui-ci pour recevoir un mandrin (56). Le mandrin (56) est pourvu d'un rebord flexible (64) destiné à venir en contact avec le piston (30). Un élément (140) à ressort retire le mandrin (56) dans une cavité (44) du piston (30) lors de l'extension complète du piston (30) dans le cylindre (80). Le cylindre (80) comprend un dispositif (86) de retenue d'embout au niveau de son extrémité avant, et un embout (100) d'aiguille retenu à l'intérieur. Le mandrin (56) comprend des dents cannelées (66, 68) avec des surfaces dont les axes coniques sont déplacés l'un par rapport à l'autre de manière que le mouvement des dents (66) l'une vers l'autre rapproche également les axes. Un cliquet (144) associé à l'extrémité arrière de l'élément (140) à ressort couplé au mandrin (56) à l'autre extrémité coopère avec des épaulements des surfaces lisses des cavités afin de maintenir la tension dans l'élément à ressort. Le dispositif (86) de retenue d'embout et l'embout (100) de l'aiguille coopèrent pour contraindre l'embout (100) de l'aiguille à un mouvement limité, afin que le mandrin (56) vienne complètement en contact avec l'embout (100) de l'aiguille.
Also published as
ZA200502901
IN629/KOLNP/2005
Latest bibliographic data on file with the International Bureau