Patent ID: 8313469

Claim:
An I.V. catheter assembly and needle safety device comprising a catheter assembly including a catheter and a catheter hub; a lock assembly including a housing, a locking member and a stop member, the housing defining a housing throughbore and having a distal end configured to engage a proximal end of the catheter hub, the locking member defining a locking throughbore and being rotatably supported within the housing throughbore, the stop member being positioned to engage the locking member to substantially prevent rotation of the locking member in a first direction; and a needle having a distal tip, the needle being positioned through the housing throughbore, the locking member throughbore and the catheter in an advanced position such that the distal tip of the needle projects from a distal end of the catheter, the needle being movable from the advanced position to a retracted position within the housing, the needle having a first portion movable through the locking member throughbore, the first portion being configured to effect rotation of the locking member in a second direction during movement of the needle toward the retracted position and effect rotation of the locking member in the first direction during movement of the needle towards the advanced position.