Expansion device for percutaneous tracheotomy, comprises hand grip, swiveling handle, peg, screw connected with the handle, nut fixed with the screw, covering stretched by the peg and lock washer fixed in the peg

摘要

The cylindrical handgrip with rounded end has an axial through-hole and a tap. The peg exhibits a base plate in which a cylindrical tube is perpendicularly arranged. Slots are axially arranged in the tube. The screw exhibits an axial passage tapped hole and an external thread. The washer has axial drilling with continuous thread.