Gamma radiation treated sheet material for use as orthopedic splints and casts and the like
OwnerPeter M. Larson, Lester M. Larsoninventors
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Abstract
Orthopedic splint materials made with thermoplastic polyester, particularly poly (epsilon-caprolactone) with a molecular weight of over 5,000 and melting between 50.degree. C. and 100.degree. C. have improved properties when subjected to gamma radiation in the range from 0.5 to 30 megarads.
Claims12
A method of radiating sheets or numbers of preformed items of poly (epsilon-caprolactone) with gamma radiation, by packaging the sheets or numbers of preformed items in bulk to form packages, and subjecting the packages to gamma radiation until the radiation dosage reaches a range of from about 0.5 to about 20 megarads as measured by strategically placed dosimeters.
Dependencies are inferred from the claim text.