Evac-U-Splints Extemity Splint, Medium.  The new quick-connect, super seal MaxiValve provides the simplest and fastest evacuation method yet.  The Evac-U-Splint molds to body contours for improved immobilization.  It is constructed of durable, easy-to-clean material that is x-ray translucent and MRI compatible.  Vacuum splints.