Wirthlin Spleno-Renal Shunt ClampDDP Elite USA Wirthlin Spleno Renal Shunt clamp is designed for use in cardiothoracic surgical procedures. This clamp can be used to manipulate blood flow through a spleno renal shunt that has been established to divert blood flow and manipulate blood pressure. The uniquely curved shanks and hook shaped DeBakey jaws make this clamp strong enough to remain where it has been positioned but is gentle enough not to cause damage to the walls of the vessels