Device in the form of a tracheostomy prosthesis to easily insert and remove an inner cannula easily

摘要

Device in the form of a tracheostoma prosthesis to easily insert and easily remove an inner cannula consisting of an outer cannula (1) in the form of a flexible tube with a proximal part (11) as well as a distal part (12) and an inner cannula ( 4) in the form of a flexible tube, where the inner cannula (4) can be inserted into the opening in the proximal part (11) of the outer cannula (1) and can be locked through interlocking or retaining elements, and the outer edge of the proximal part (11) of the outer cannula (1) has two facing recesses (3), characterized by the fact that the recesses (3) are configured in the form of a circular arc and so that they are accessible by index finger and thumb and the inner cannula has at its proximal end an edge (41) as a bulge.