Problem Description:   Type-I Thyroplasty is a medical procedure during which an immobilized or paralyzed vocal fold is augmented in order to improve the voice of the patient. This procedure requires visualization of the vocal folds, which is accomplished through the nasal cavity using a Laryngoscope. The Laryngoscope is positioned just above the nose of the patient during the surgery.

Currently, surgeons must improvise their own Laryngoscope suspension systems using stands and poles. The current setup in use by Dr. Weissbrod is pictured below:

Project Objective:  To produce a Laryngoscope suspension system that fulfills the needs of the surgeon, which include the following features:

Final Design

     The final design of the laryngoscope suspension system uses a lead screw to provide motorized vertical motion which will be controlled using a dual foot pedal. The suspension system includes two rotational joints with electromagnetic brakes that will provide the horizontal X-Y plane motion. Adjusting the horizontal motion requires the surgeon to disengage the electromagnetic brakes with a trigger situated on the laryngoscope holder. Additionally, the surgeon can make fine rotational movements using a ball joint at the end of the arm.