system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
In an alaryngeal speech, with fistula based voice prosthesis, which of these prosthesis has the feature of "Loading tool with an instantaneous opening of the oesophagal flange
assistant
The correct answer is  Alaryngeal speech is a speech made using sources other than the glottis in the larynx to create voiced sound. There are three types: oesophagal, buccal, and pharyngeal speech. In oesophageal tracheoesophageal puncture can be made and utilized Provox2 is a diameter indwelling silicone voice prosthesis that can be inseed, immediately after TE puncture (primary or secondary), without the need for temporary stenting. Ref: https://en.m.wikipedia.org/wiki/Voice_prosthesis