Emergency head immobilizers

A head immobilizing device for use on a stretcher comprising a pair of complementary blocks of material, each block having a top, foot, face, back, outer lateral surface and inner lateral surface, said inner lateral surface including a round section, a flat section and a tapered section, said round section being contoured for snug fitting disposition about the head of a patient lying on a stretcher, said flat section being sized for snug fitting disposition along the side of said patient's neck when the round section is disposed against the side of the patient's head, and said tapered section being such that the blocks are closer together at their tops than at their round sections, whereby the tops of the blocks can be pivoted with respect to each other and thereby immobilize the top of the patient's head as well as the neck and sides thereof as the patient is transported on the stretcher.