Dilator assembly, a device for facilitating tracheostomy and methods of making a percutaneous tracheostoma

A device for facilitating tracheostomy comprising:

• a first branch for arranging inside a trachea,
• a second branch co-operative with the first branch for creating a tracheostoma,
• wherein the first branch has a first end to be introduced into the trachea, which first end has receiving means, and an opposing second end provided with a first coupling part,
• wherein the second branch has a first end with a guide for a neck penetration member and an opposing second end with a second coupling part for coupling with the first coupling part of the first branch, and
• wherein the first branch and the second branch are detachably coupled together at respective second ends, and
• wherein the device further comprises a dilator assembly adapted for percutaneous dilatational tracheostomy in a patient already having an inserted endotracheal tube for ventilation, the dilator assembly comprising a dilator element having a wall and a proximal end part having a length and extending into a distal tip part via an intermediate part, wherein at least the wall of the proximal end part of the dilator element has a substantially U-shaped cross section defining a dilator opening along at least the length of the proximal end part, which dilator opening is dimensioned for engaging and accommodating the already inserted endotracheal tube.