Electrosurgical pencil with smoke evacuation and electrode visualization

An electrosurgical pencil, comprising:

• a handle housing defining a longitudinal axis;
• a nozzle slidably received within a fluid lumen defined by the handle housing and configured to move along the longitudinal axis relative to the handle housing between a retracted position and an extended position, the nozzle defining a fluid lumen in fluid communication with the fluid lumen defined by the handle housing for evacuating fluid from a surgical site;
• an electrode at least partially disposed within the fluid lumen defined by the nozzle and configured to deliver electrosurgical energy to tissue;
• and
• a twist lock rotatably coupled to a distal end portion of the handle housing and configured to rotate about the longitudinal axis between a locked position to prevent movement of the nozzle along the longitudinal axis and an unlocked position to permit movement of the nozzle along the longitudinal axis.

An electrosurgical pencil, comprising:

• a handle housing defining a longitudinal axis and including a flexible portion disposed at a distal end portion of the handle housing;
• a nozzle slidably received within a fluid lumen defined by the handle housing and configured to move along the longitudinal axis relative to the handle housing between a retracted position and an extended position, the nozzle defining a fluid lumen in fluid communication with the fluid lumen defined by the handle housing for evacuating fluid from a surgical site;
• an electrode at least partially disposed within the fluid lumen defined by the nozzle and configured to deliver electrosurgical energy to tissue;
• and
• a twist lock rotatably coupled to the distal end portion of the handle housing and configured to rotate about the longitudinal axis between a locked position wherein the twist lock biases the flexible portion into locking engagement with the nozzle to prevent movement of the nozzle along the longitudinal axis and an unlocked position wherein the flexible portion passively engages the nozzle to permit movement of the nozzle along the longitudinal axis.