| 摘要 |
The present invention concerns a fistula insert with a tubular body which has a distal and a proximal end and a central lumen, in particular to seal fistulas in connection with voice prostheses, speech valves, tracheal cannulas, stoma buttons and connectors. To produce such a device, which on insertion can be conformed individually to the size and shape of the stoma or fistula and produce a suitable seal, in accordance with the invention, the tubular body has an outer surface which can be conformed to the shape of a fistula to be sealed and an inner surface which is essentially stable in shape.
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