Manual safety device for a medical needle

摘要

A shieldable blood collection set includes a needle cannula and a tip guard axially movable along the needle cannula through a guard drive. The tip guard is axially movable along the needle cannula from a proximal position substantially adjacent a proximal end of the needle cannula, to a distal position in which the tip guard protectively surrounds a puncture tip at the distal end of the needle cannula. The guard drive interconnects the needle cannula and the tip guard through a hub which includes a rigid fin and a tether. The rigid fin is pivotally connected to the hub and extends dorsally from the hub, and the tether interconnects the end of the fin with the tip guard. Pivotal movement of the fin causes the tether to extend to move the tip guard from the proximal position to the distal position for shielding of the needle. <IMAGE>