Apparatus for subcutaneous placement of an imaging marker

摘要

A subcutaneous marking apparatus for placement of an imaging marker at a predetermined site in a tissue mass comprises a handle (20) having a front portion (22) and a rear portion (24), a cannula (120), a stylet slidably received with the cannula (120), a trigger (60) extending from the front portion (24) of the handle (20) and operably engaging the stylet, and an imaging marker disposed within a marker recess in a distal end (122) of the cannula (120). A user can firmly grasp the marking apparatus in one hand and simultaneously actuate the trigger (60) with a finger or a thumb of the same hand to move the stylet and thereby place the imaging marker at the predetermined site.