Bone connective prosthesis comprising a reinforcement element ca

Details Bone connective prosthesis comprising a reinforcement element ca Bone connective prosthesis comprising a reinforcement element ca

1979-08-03

1981-07-28

Smith, William F.

Surgery

Truss

Pad

3 1911, 3 1913, 128 92C, 428170, 428218, 428305, A61F 124

Patent

active

042802334

ABSTRACT:
Improved bone connective prostheses are disclosed. The prostheses comprise a reinforcement element carrying a polymer layer having a varying modulus of elasticity. The exterior surface of the polymer layer constitutes the bone attachment surface of the prostheses and has the lowest modulus of elasticity. The interior surface of the polymer layer is attached to reinforcement element and has the highest modulus of elasticity. Portions of the polymer layer lying between the exterior and the interior surface of the polymer layer have moduli of elasticity which are intermediate with respect to the moduli of elasticity of the exterior and interior surface of the layer. The modulus of elasticity of the layer decreases in the direction of interior to exterior. The decrease in modulus of elasticity may be either continuous or incremental. The reinforcement element may have either a simple or a complex structure.

REFERENCES:
patent: 3623164 (1971-11-01), Bokros
patent: 3707006 (1972-12-01), Bokros et al.
patent: 3781917 (1974-01-01), Mathys
patent: 3806960 (1974-04-01), Weber
patent: 3879767 (1975-04-01), Stubstad
patent: 3893196 (1975-07-01), Hochman
patent: 3938198 (1976-02-01), Kahn et al.
patent: 3986212 (1976-10-01), Sauer
Jastrzebski, Zbignieu, The Nature and Properties of Engineering Materials, John Wiley and Sons, 1976, p. 410.

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