Needle assembly

Details Needle assembly Needle assembly

A - Human Necessities

61

M

A61M 5/32 (2006.01) A61J 1/05 (2006.01) A61M 1/02 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2422472

A shieldable needle assembly provided as part of a blood collection set includes a needle cannula having a proximal end and a distal end with a puncture tip. The needle assembly has a hub member supporting the proximal end of the needle cannula and a shield member having a housing defining a central bore, which is in axial alignment with the hub member. The shield member extends co-axially about the needle cannula and is movable between a retracted position in which the puncture tip of the needle cannula is exposed, and an extended position covering the puncture tip of the needle cannula. An extendable member connects the hub and shield members. A compression spring is further connected between the hub and shield members for moving the shield member to the extended position. A latch assembly provides releasable engagement between the hub and shield members.

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