A preformed patient-contact device (i.e., wedge) designed to be attached to a rigid flat surface (e.g., backboard) to support cervical and head immobilization during patient extrication and emergency handling. It is intended to maintain natural alignment of the head and neck by preventing lateral and rotational movement once the patient is secured to the backboard. It is typically used by emergency medical services (EMS) as part of spinal immobilization procedures. It is neither a freestanding patient positioner nor an extrication collar. This is a single-use device.