Safety pen needle assembly

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/32 (2006.01) A61M 5/20 (2006.01) A61M 5/46 (2006.01)

Patent

CA 2733932

In one aspect, a safety pen needle assembly is provided herein which includes a hub with a needle fixed to the hub, the needle having a distal end, formed for insertion into a patient, and a proximal end. The assembly further includes a shield and a biasing member disposed between the hub and the shield configured to urge the shield distally. A protrusion extends from at least one of the hub and the shield with a channel being formed in at least the other of the hub and the shield. The channel is formed to accommodate the protrusion. The shield is movable from a first position to a second position. In the first position, the shield is spaced from the distal end of the needle such that the distal end of the needle is exposed. In the second position, the shield covers the distal end of the needle.

Dans un aspect, l'invention concerne un ensemble aiguille de stylo sécurisé qui comprend un raccord, avec une aiguille fixée au raccord, l'aiguille comportant une extrémité distale, conçue pour être insérée dans le patient, et une extrémité proximale. L'ensemble comprend en outre un élément de protection et un élément de sollicitation placé entre le raccord et l'élément de protection, conçu pour faire avancer l'élément de protection vers l'extrémité distale. Une extension s'étend depuis l'un au moins des éléments raccord et de protection, un conduit étant formé dans au moins l'autre de ces éléments. Le conduit est formé de façon à accueillir l'extension. La protection est mobile entre une première position et une deuxième position. Dans la première position, l'élément de protection est séparé de l'extrémité distale de l'aiguille par une distance telle que l'extrémité distale de l'aiguille est exposée. Dans la deuxième position, l'élément de protection couvre l'extrémité distale de l'aiguille.

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