Abstract: Apparatus and method for performing a tracheostomy operation wherein the trachea is penetrated using a syringe needle (23) attached to a syringe (20) to form a small opening in the trachea. A guide wire (30) is inserted into the trachea through the needle (23) and after the syringe (20) is removed from the needle. The needle (23) is then removed from the trachea leaving the guide wire (30) inserted in the trachea. An instrument (T) specifically adapted for use in tracheostomy operations is inserted into the small trachea opening produced by the needle (23) while being guided by the guide wire (30). The instrument (T) being opened after insertion into the trachea to widen the trachea opening and a cannula for insertion into the opening of the trachea after having been widened by the instrument (T).