Orthopaedic applications of ferromagnetic shape memory alloys
Name
321079407-MIT.pdf
Description
Full printable version
Size
7.67 MB
Format
Adobe PDF
Checksum (MD5)
2cd694d47b339cbd07ce901fca471b9c
Author(s)
Guo, Weimin, M. Eng. Massachusetts Institute of Technology
Advisor(s)
Samuel M. Allen.
Alternative Title
Orthopedic applications of ferromagnetic shape memory alloys
Date Issued
2008
Publisher
Massachusetts Institute of Technology
Abstract
Ferromagnetic shape memory alloys (FSMAs) are a new class of magnetic field-actuated active materials with no current commercial applications. By applying a magnetic field of around 0.4 T, they can exert a stress of approximately 1.5 MPa, exhibiting a strain of up to 6%. This thesis evaluates their technical and commercial feasibility in orthopaedic applications. Remote actuation is a key advantage FSMAs have over current implant materials. Also, the human body temperature is constant, providing a stable environment for FSMAs to operate. A number of potential orthopaedic applications are proposed and evaluated. Out of these, the most prominent application is the spinal traction device. It is a temporary implantable device, intended to perform internal spinal traction. A design has been proposed, with suggestions of suitable materials for its various components and appropriate device dimensions. Preliminary market and cost analyses have been conducted. This orthopaedic technology is currently in its infant stage. To commercialize this device, more trials are needed.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2008.
Includes bibliographical references (leaves 36-40).
Subjects
Materials Science and Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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