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Features of the Atos Medical Provox ActiValve Voice Prosthesis:
Provox ActiValve is designed for those who experience short prosthesis lifetime (less than 4 - 8 weeks) caused by early leakage through the prosthesis. Provox ActiValve reduces the need for frequent replacements in a majority of users. Some people suffer from negative pressure in the pharynx/esophagus during swallowing or inhalation. The Provox ActiValve incorporates two low force magnets, one in the valve and one in the outer ring which increase the pressure needed to open the prosthesis valve reducing the chance of inadvertent opening during swallowing or inhalation. Once the valve is open speech is easily achieved. The Provox ActiValve should be considered after a person has experienced approximately 5 consecutive short durations of other prosthesis (shorter than 4 to 8 weeks). Provox ActiValve is NOT intended for primary or secondary placement at the time of surgery.