Tracheostomy tubes and assemblies

Details Tracheostomy tubes and assemblies Tracheostomy tubes and assemblies

A - Human Necessities

61

M

A61M 16/04 (2006.01)

Patent

CA 2187696

Tracheostomy tube assemblies may comprise an outer tracheostomy tube and an inner cannula, the outer tube being straight at its patient end and having a short straight machine end with a coupling. In the present invention, the inner cannula is of a flexible material preformed to the shape of the outer tube and smooth on its inside and outside. The patient and machine ends of the outer tube are separated by a curved intermediate region divided along its length into two sub-regions. The first sub-region closer the machine end has a small radius of curvature; the other sub-region closer the patient end has a radius of curvature at least three times that of the first sub-region. This shape enables the patient end of the assembly to be aligned with the patient's trachea.

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