Particular embodiments disclosed herein provide a surgical instrument comprising a device having a functional end configured to be inserted into a body part, a shaft coupled to a proximal end of the device, and a shaft housing configured to receive a distal end of the shaft and operable to move along a central axis of the shaft. The surgical instrument further comprises a tube coupled to the distal end of the shaft housing and configured to partially house the device such that the functional end of the device at least partially extends beyond the distal end of the tube. The surgical instrument further comprises a plurality of arcuate levers such that pressing one or more of the plurality of arcuate levers moves the shaft housing and the tube toward the functional end of the device, causing the tube to transition the device from a deactivated state to an activated state.
