| 摘要 |
The invention relates to a hemi-cannula for tracheotomy patients, comprising a main tubular body ( 1.1 ) which is made from a suitable flexible material and which comprises peripheral end fixing flanges ( 1.2 and 1.3 ). One of said flanges ( 1.2 ), which is intended to be disposed inside the trachea next to the inner face of same, takes the form of a wing comprising a cylindrical surface with an oblique axis in relation to an axis perpendicular to the main axis of the main body ( 1.1 ). The other flange ( 1.3 ) takes the shape of a truncated cone comprising a larger outer base. According to the invention, a conduit forming the main tubular body passes through the centre of both of said flanges. The invention is suitable for producing tracheotomy cannulas.
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