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Updated: Aug 28, 2025

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study

Published on: November 6, 2015

Optimization of Thumb Prosthesis Design by Using Five Performance Criteria.

Nestor Tsamo^1,2, Denis Tcheukam Toko², Pierre Kisito Talla¹

¹Laboratory of Mechanics and Modelling of Physical Systems (L2MPS), Department of Physics, Faculty of Science, University of Dschang, P. O. Box: 67, Dschang, Cameroon.

Applied Bionics and Biomechanics

|September 15, 2022

Summary

This summary is machine-generated.

This study optimized thumb prosthesis design using five criteria, including cost and reliability. Optimal design balances mechanical strength and production expenses for customized prosthetic devices.

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Area of Science:

Biomedical Engineering
Mechanical Engineering
Manufacturing Engineering

Background:

Thumb prostheses require complex mechanisms for optimal function.
Balancing performance, cost, and reliability is crucial in prosthetic design.

Purpose of the Study:

To optimize the design of a thumb prosthesis mechanism.
To integrate manufacturing cost models and strength reliability into the optimization process.

Main Methods:

Utilized five performance criteria: structural error, manufacturing imprecision, driving torque, strength reliability, and production cost.
Developed a manufacturing cost model based on machining cost theory, considering workpiece geometry and part strength.
Employed multiobjective optimization to analyze the impact of different criteria on the prosthetic device configuration.

Main Results:

Multiobjective optimization demonstrated that mechanical reliability and production cost significantly influence design variables.
The optimal manufacturing cost, including labor and equipment, was determined to be 501.0021 USD via numerical simulation.
The study identified a strong correlation between global manufacturing cost, mechanical strength reliability, and structural customization.

Conclusions:

The design of thumb prosthesis mechanisms is significantly impacted by manufacturing cost and mechanical reliability.
Stochastic variations in manufacturing processes necessitate careful consideration of these factors for effective customization.
Achieving an optimal balance between performance, cost, and reliability is key for advanced prosthetic development.