Thermoplastic liner blank
OwnerKennet Hellberginventor
Life of this patent
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Abstract
A soft and elastic prosthetic liner blank for customizing to an individual user is formed from thermoplastic material and molded to a hollow, generally rotation symmetric shape having at least one radial dimension. The liner blank has an open proximal end for insertion of the residuum of an amputee's arm or leg and a closed distal end, and the liner blank further having a material composition allowing thermo-forming of the liner blank while maintaining elasticity in the thermally applied shape. The radius of the liner blank is dimensioned to accommodate and to adopt, through plastic deformation, any sectional profile included in the positive copy.
Claims12
A prosthetic liner blank, having an open proximal end and a closed distal end, provided for customizing to an individual user by thermoforming on a positive copy of the residuum of an amputee's arm or leg, the liner blank comprising:
- a thermoplastic material suitable for molding and having a material composition allowing thermoforming at temperatures ranging from about +60° C. and above, while maintaining elasticity in the thermally applied and remaining shape at service temperatures, ranging up to about +60° C.,
- the liner blank being a hollow, seamless and generally rotation symmetric element having a radial dimension,
- said radial dimension of the rotation symmetric element being dimensioned to accommodate all radii included in the positive copy,
- and the customized liner blank being imprinted with the shape and sectional profiles of the positive copy.
Dependencies are inferred from the claim text.