The invention relates to a tracheostoma spacer with a tubular support
framework. The support framework can be expand from an initial state to a
supporting state of increased diameter and has a fixing element at the
ends. The tracheostoma spacer is intended for use as a spacer in a
tracheostoma (an opening in the trachea). The invention further relates
to a device for inserting a tracheostoma spacer into a tracheostoma with
a cutting instrument in the form of a trocar, the tracheostoma spacer
being able to be positioned on the shaft of said trocar. A cover sleeve
is also provided which can be moved on the shaft over a tracheostoma
spacer positioned there.