| 主权项 |
1. An apparatus for percutaneously implanting a localization wire within a tissue mass, comprising:
a handle having a grip portion and a base, the grip portion slidably mounted to the base, the base having a keyway; a cannula mounted to the handle, the cannula defining a lumen and having a distal end forming an insertion tip, the cannula being movable relative to the handle between an insertion position and a retracted position; a localization wire positioned to extend from the handle and into the lumen of the cannula, the localization wire having a distal end; an actuator coupled to the cannula and configured to operate between a charged condition and a discharged condition to retract the cannula toward the retracted position to expose the distal end of the localization wire; and a collar mounted to the cannula, the collar including a key having a key projection, and the keyway of the base configured to selectively receive the key projection, and configured such that the key projection is not aligned with the keyway when the actuator is in the charged condition and the key projection is aligned with the keyway in an aligned condition to facilitate retraction of the cannula toward the retracted position to effect the discharged condition. |
