Establishing Testing Rig

A project log for 3D Printed Tesla VP Shunt Valve

Sterile 3D printing of ventriculoperitoneal shunt valve and other components in developing countries

sohum-desai-mdSohum Desai MD 04/05/2017 at 00:230 Comments

VP shunt valves prior to implantation are tested with a manometer setup as follows:

What you see here is a three way stopcock, manometer (vertical plastic tube marked in increments of centimeters), an adaptor for the outflow nozzle of the 3 way stopcock, and the shunt valve. The switch on the three way stopcock is turned so that the shunt valve is closed. A syringe filled with saline is then attached to the inflow used to fill the manometer. The switch of the three way stopcock is then turned so that the valve is closed.

At this point the column of saline in the manometer will drain out of the distal end of the valve.