An orthopedic device comprising a plastic sheet member having one side covered with a thin protective layer which is substantially thinner than said plastic sheet member and the other side covered with an insulating layer, e.g., fabric or foam. The plastic sheet member has a tensile strength of at least...http://www.google.es/patents/US4136686?utm_source=gb-gplus-sharePatente US4136686 - Orthopedic device
