COMBINED NEEDLE AND DILATOR DEVICE FOR CENTRAL VENOUS AND ARTERIAL CATHETERIZATION.

摘要

This is a disposable device for arterial or central venous catheterization, comprising a needle (A) connected to a piston (P) perforated in the axial direction to allow for the passage of a Seldinger wire; inserted in a dilator (D) with a tubular container (I) at the end. The container (I) is complete with a lateral aspirator (S), that communicates with the inside of the piston (P) and with the hole in the needle (A) to allow for the position of the needle in the vein to be verified, and where said communication is occluded when said piston (P) is drawn back or partially withdrawn from the container (I). The device is also complete with a Seldinger wire (F) with a corresponding advancement mechanism (Fm).