A voice prosthesis is a medical device designed to help individuals who have lost their natural voice, often due to conditions like laryngeal cancer. It is typically used by patients who have undergone a laryngectomy, a surgical procedure that removes the larynx. The prosthesis allows users to produce sound by redirecting air from the lungs into the esophagus, creating vibrations that can be shaped into speech. These devices come in various forms, including tracheoesophageal puncture (TEP) valves, which are surgically implanted. Voice prostheses can significantly improve the quality of life for users, enabling them to communicate more effectively and regain a sense of normalcy after their surgery.