As a catheter, for injection - and drainage purposes and apparatus which can be used for percutaneous paracentesis

摘要

A device for percutaneous paracentesis, injection, drainage and catheterization comprising a hypodermic needle having means for attachment to a syringe, with a central body portion having a reference mark and a smaller diameter leading end portion extending therefrom, its end terminating in a cutting bevel and a trocar adapted to surround the central body portion of the needle and capable of sliding thereon using it as a guide, having a graduated scale related to the overall length of the needle and having its end also terminating in a cutting bevel.