Passive double drive member activated safety blood collection device
AssigneeBecton, Dickinson and Company
InventorBradley M. Wilkinson
Life of this patent
Estimating the term…
Abstract
A shieldable needle device including a drive member is disclosed. The drive member is extendable between a biased position and an extended position for moving a tip guard from an first position to a second position in which the tip guard shields a distal end of the needle cannula. The shieldable needle device includes a pair of wings extending laterally from opposing sides of the hub that are movable between a laterally extending position and a dorsal position. With the wings in the dorsal position, the wings retain the drive member in the biased position thereby maintaining the tip guard in the first position. Movement of the wings from the dorsal position to the laterally extending position releases retainment of the drive member. A second drive member may be included.
Claims16
A shieldable needle device comprising:
- a needle cannula having a proximal end and a distal end;
- a hub supporting at least a portion of the needle cannula;
- a tip guard movable with respect to the needle cannula from a first position adjacent the hub to a second position in which the tip guard shields the distal end of the needle cannula;
- a first drive member extendable between a biased position and an extended position for moving the tip guard from the first position to the second position, the first drive member engaged with the hub and the tip guard;
- a second drive member extendable between a biased position and an extended position for moving the tip guard from the first position to the second position, the second drive member engaged with the hub and the tip guard;
- and
- wherein, when the first drive member and the second drive member are each in the extended position, the first drive member and the second drive member contact each other along a length of the needle cannula between the hub and the tip guard such that the first drive member, the second drive member, and the tip guard encapsulate the needle cannula along the length of the needle cannula.
Dependencies are inferred from the claim text.