Fewer operations

Up to fifty per cent of throat cancer patients need their voice box removed, and to be able to regain the power of speech, they need to have a small valve inserted into their throats. These valves are widely recognised as the most successful way to restore speech following laryngectomy, but recipients are subjected to a lifetime of further and frequent operations due to the short lifespan of the valves.

Now, medical engineers at Hull University, working with ear, nose and throat surgeon, Stephen Ell at Hull Royal Infirmary, have designed a new valve that could last significantly longer, reducing throat cancer patients’ suffering and improve their quality of life.

Throat valves restore vocal function by diverting air from the windpipe into the throat, creating vibrations so that speech can be formed. However, current silicone valves suffer rapid deterioration due to bacteria and yeast build-up. This bio-film build-up causes valves to fail quickly, typically after three months, and means a visit to hospital to insert a replacement every time the valve fails for the rest of the patient’s life.