US Patent 8721720 Dilator for inserting a voice prosthesis

A dilator may include a substantially conical body having a tip portion at a proximal end and a base portion at a distal end thereof. A wire lock portion may be configured to lock a guide wire to the dilator. A voice prosthesis holding portion may be connected to the substantially conical body by a connecting portion. The holding portion may have a central passage configured to have a tubular body of a voice prosthesis positioned therethrough, wherein at least one flange of the prosthesis is substantially unfolded proximally of the central passage.