Method of casting hollow bone prosthesis with tailored flexibili

Details Method of casting hollow bone prosthesis with tailored flexibili Method of casting hollow bone prosthesis with tailored flexibili

1996-12-16

1998-07-21

Batten, Jr., J. Reed

Metal founding

Process

Shaping liquid metal against a forming surface

164519, B22D 2500, B22D 2900

Patent

active

057822867

ABSTRACT:
The stem is cast about an irregular plug body, which is then removed, leaving a wall thickness that satisfies the opposing constraints of high strength and relatively low stiffness. The plug narrows the prosthesis wall thickness in upper regions thereof and strengthens the wall about regions of recessed or discontinuous features, or high load coupling, to assure that the stem has adequate strength in regions of high strain, while effectively coupling strain to surrounding bone. The prosthesis is produced in a range of sizes, and plugs or entire molds for casting the hollow body are readily made and modified by a three-dimensional printing mold fabrication technique.

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