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Related Experiment Videos

A computer-aided socket design procedure for above-knee prostheses.

R Torres-Moreno1, J B Morrison, D Cooper

  • 1School of Kinesiology, Simon Fraser University, Burnaby BC, Canada.

Journal of Rehabilitation Research and Development
|January 1, 1992
PubMed
Summary
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A new computer-aided socket design (CASD) procedure creates custom above-knee prosthetic sockets. This method uses amputee measurements and reference shapes for precise, personalized socket configurations.

Area of Science:

  • Biomedical Engineering
  • Prosthetics and Orthotics
  • Computer-Aided Design

Background:

  • Traditional prosthetic socket design can be time-consuming and relies heavily on prosthetist experience.
  • Developing custom-fit sockets is crucial for amputee comfort, function, and overall prosthetic success.

Purpose of the Study:

  • To introduce a novel computer-aided socket design (CASD) procedure for creating custom above-knee prosthetic sockets.
  • To demonstrate how anthropometric data can be integrated with digital shape libraries for socket fabrication.

Main Methods:

  • The CASD procedure utilizes anthropometric measurements from amputees.
  • Three-dimensional numerical data from a Reference Shape Library are selected and transformed.
  • Tissue mass weighting factors are applied to blend shapes, creating a basic socket shape.

Related Experiment Videos

  • Graphical procedures allow for interactive adjustments by prosthetists.
  • Final socket shape data is transferred to a CNC milling machine for model creation.

    • Main Results:

    • The CASD system successfully generates custom socket configurations based on individual amputee measurements.
    • The procedure allows for precise scaling and blending of reference shapes to match patient anatomy.
    • Interactive graphical adjustments enable prosthetists to refine the socket design to meet specific needs.

    Conclusions:

    • The developed CASD procedure offers an efficient and accurate method for designing custom above-knee prosthetic sockets.
    • This technology has the potential to improve prosthetic fitting and patient outcomes.
    • Integration of anthropometric data and digital modeling streamlines the socket design process.