Abstract: Substantially transparent compositions that block electric-arc energy. A process of making the compositions comprise blending an IR/optical dye with a substrate material and subjecting the blend to curing conditions. Products manufactured from the composition ablate upon impact of electric-arc energy.
Abstract: A device (20) for preventing or reducing the passage of air through the mouth (22). The device (20) comprises a top lip member (26) and a bottom lip member (28) having a space (34) therebetween. The space (34) is configured such that, in use, when the top and bottom lips (22T & 22B) of a patient are forced through the space (34), the top and bottom lip members (26 & 28) squeeze the top and bottom lips (22T & 22B) together thereby substantially sealing the mouth (22).