ROTATION LOCKING DRIVER FOR IMAGE GUIDED INSTRUMENTS

摘要

A trackable medical instrument (110) includes a guide member (202) and an emitter array (170) coupled to the guide member (202). A drive shaft (204) is rotatably coupled to the guide member (202), and a locking mechanism (212) is provided along the drive shaft (204). The emitter array (170) emits a signal that is used to track the position of the guide member (202). The locking mechanism (212) has an unlocked position in which the drive shaft (204) rotates relative to the guide member (202). The locking mechanism (212) also has a locked position in which the drive shaft (204) is rotationally stationary relative to the guide member (202). A processor tracks medical instruments (110) using a sensor array and a reference array. A display that is operatively coupled to the processor displays the position of the instrument (110) in relation to a patient.