Abstract: 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.

Abstract: The invention relates to an improved can opener which is designed to open a metal container by making a continuous, peripheral cut in the corresponding upper cover of said container. The inventive device is of the type that comprises a pair of interarticulated arms which define a clamp therebetween. According to the invention, one arm is tilted in relation to the other in order to close said clamp and mount the cutting edge on the cover of the container. The aforementioned cover is then cut by rotating a toothed wheel which in turn moves the can opener along the perimeter of the container, the upper edge of the container being disposed between said toothed wheel and a lateral flange of the main arm. The toothed wheel is rotated using a rotation-mounted manual actuation lever or crank handle.

Abstract: 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.