Retractable needle medical device

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/00 (2006.01) A61M 5/178 (2006.01) A61M 5/32 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2338255

A catheter insertion device (10) is provided for inserting an over-the-needle catheter (70). The device (10) includes an insertion needle (30) that is retractable into the housing (20) of the device (10) after use to prevent exposure to the contaminated needle (30). The needle retainer (40) releasably retains the needle (30) in an extended position against the rearward bias of the biasing element (60). The needle retainer (40) engages the hub (72) of the catheter (70) so that when the catheter is removed from the insertion device (10), the needle retainer (40) automatically releases the needle (30). The biasing element (60) then propels the needle rearwards into the housing (20) of the device. Further, a device for inserting a guide wire into a patient is also provided along with methods of inserting the guide wire.

L'invention se rapporte à un dispositif (10) conçu pour permettre l'introduction d'un cathéter (70) sur aiguille. Ledit dispositif (10) comporte une aiguille d'insertion (30) qui peut être escamotée à l'intérieur du logement (20) dudit dispositif (10) après utilisation pour éviter l'exposition à l'aiguille contaminée (30). L'organe de retenue (40) de l'aiguille retient l'aiguille de manière libérable (30) dans une position déployée à l'encontre de la sollicitation exercée vers l'arrière par un élément de sollicitation (60). Ledit organe de retenue (40) entre en contact avec l'embout (72) du cathéter (70) de sorte que lorsque le cathéter est retiré du dispositif d'introduction (10), ce dispositif de retenue (40) libère automatiquement l'aiguille (30). L'élément de sollicitation (60) propulse alors l'aiguille vers l'arrière de façon à la faire rentrer dans le logement (20) du dispositif. L'invention se rapporte en outre à un dispositif permettant d'introduire un fil-guide dans un patient ainsi qu'à des procédés d'introduction dudit fil-guide.

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