Patent ID: 7918823

Claim:
An apparatus, comprising: a housing having a distal end portion and a proximal end portion; a needle configured to move between a first needle position and a second needle position, in the first needle position the needle is contained within the housing, in the second needle position at least a portion of the needle extends from the distal end portion of the housing; an energy storage member disposed within the housing, the energy storage member configured to produce a force to move the needle from the first needle position to the second needle position; an actuator including a first actuation member disposed within the housing and a second actuation member coupled to the distal end portion of the housing, the actuator configured to actuate the energy storage member when the first actuation member is moved within the housing; and a safety lock movably coupled to the distal end portion of the housing, the safety lock including a protrusion configured to extend through an opening defined by the second actuation member and engage a portion of the first actuation member to limit movement of the first actuation member.