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Design Of A Near-Constant Force Spring For Orthopedic Implants, Christopher Hartman, Paul Rotarius
Design Of A Near-Constant Force Spring For Orthopedic Implants, Christopher Hartman, Paul Rotarius
Honors Theses
The design and testing of a spring assembly for the attachment of an orthopedic implant is presented. The assembly is intended to supply a constant compressive force of approximately 800 lb. at the bone-implant interface, while exhibiting insensitivity to changes in the displacement of the clamping device. This near-constant force will aid in-growth of bone tissue at the implant surface. This constant compressive force was ultimately not attained due to the packaging dimensions and materials available. However, significant improvement was made upon the current design in use by lowering the spring constant around 800 lb.
The final assembly fits in …