Patent ID: 8939938
Filing Date: 2015-01-27
Classification: A61M

Abstract:
1. A needle tip protection device comprising: a needle tip protector body having a front portion configured to receive a basal end of an outer needle and a rear portion defining a rearwardly extending engagement tube defining a hole; a stopper member supported by the rear portion of the needle tip protector body, the stopper member being movable from a first position, in which the member obstructs the hole of the engagement tube, to a second position, in which the member provides access to the hole of the engagement tube; a protecting sleeve slidably positioned within the hole of the engagement tube and movable between a first advanced position, in which the sleeve extends through the hole in the engagement tube and past the stopper member, and a retracted position, in which the sleeve extends rearwardly from the needle tip protector body through the hole of the engagement tube, the protecting sleeve having a forward end and a rear end, the rear end of the protecting sleeve being dimensioned to be slidably received in the hole of the engagement tube and the forward end of the protecting sleeve being dimensioned to prevent passage of the forward end of the protecting sleeve through the hole of the engagement tube so the protecting sleeve remains connected to the protector body, the protecting sleeve defining a bore having a forward opening having a first diameter and a rear opening having a second diameter smaller than the first diameter; and an inner needle having a needle tip smaller than the first diameter and larger than the second diameter.