Needle assembly

Details Needle assembly Needle assembly

A - Human Necessities

61

M

A61M 5/158 (2006.01) A61M 1/30 (2006.01) A61M 5/32 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2426390

A shieldable winged needle assembly includes a hub and a cannula projecting distally beyond the hub. A spring is telescoped over the cannula and engages with or into distal portions of the hub. A hub guide projects radially out from the hub. A first wing includes a center sleeve rotationally mounted on the hub and axially movable along the hub when a slot formed in the center sleeve aligns with the hub guide. A second wing has proximal and distal sleeves mounted at opposite ends of the center sleeve. The proximal and distal sleeves each are rotationally mounted relative to the hub and each include slots that enable sliding movement of the hub guide when the slots of the second wing align with the slot of the first wing. 'The spring propels the cannula and hub into a shielding position when the slots of the wings are rotated into alignment with one another.

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