Replaceable Fairing for Prosthetic Limbs and Braces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing prosthetic limbs and braces lack aesthetic symmetry, leading to an asymmetric appearance that can be perceived as a health shortcoming, and current solutions fail to provide a personalized and symmetrical design, causing discomfort and stigma for amputees.
Innovation Solution
A method using computer-aided design (CAD) software and computer-controlled fabrication processes to create a fairing for prosthetic limbs and braces, allowing users to personalize their appearance by creating a mirror image of their intact limb, with a removable fairing that can be easily changed, using photogrammetry and laser scanning for accurate measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional prosthetic limbs and braces are designed to provide structural support and protection, then functionality and durability are improved, but aesthetic symmetry and personalization are lost
Solution Approach 1:
The prosthetic limb is divided into functional components (socket, pylon, foot) and an aesthetic component (fairing). The fairing is a separate, replaceable outer shell that can be customized independently while the internal structure maintains its structural integrity for support and protection.
Solution Approach 2:
The fairing is designed as a mirror image copy of the user's intact limb, creating visual symmetry. This copying approach allows the prosthetic to match the appearance of the healthy limb while maintaining the functional advantages of the mechanical structure underneath.
2Shape
If a custom fairing is created to match the user's intact limb, then aesthetic symmetry is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The fairing design incorporates variable parameters including color, texture, and pattern that can be adjusted to match the user's intact limb. These parameter changes are implemented through digital design and 3D printing, allowing customization without proportionally increasing manufacturing complexity.
Solution Approach 2:
The fairing can be produced in various colors and finishes to match the user's skin tone or personal preferences. The ability to change color and surface properties provides aesthetic customization while using the same basic manufacturing process.
3Adaptability or versatility
If the fairing is made removable and replaceable, then ease of personalization is improved, but attachment reliability may be compromised
Solution Approach 1:
The fairing transitions from a static permanent attachment to a dynamic replaceable component. The attachment mechanism allows for easy removal and reattachment, enabling users to change the fairing for different occasions or preferences while maintaining secure connection during use.
Solution Approach 2:
By separating the fairing from the main prosthetic structure, the design allows the fairing to be independently replaced without affecting the structural components. This segmentation enables personalization while the attachment mechanism ensures reliability during wear.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method enables the creation of prosthetic limbs and braces that are both aesthetically symmetrical and customizable, improving the user's emotional and physical comfort by matching the appearance of the intact limb, reducing stigma and enhancing mobility.
Implementation Method 1
using photogrammetry and laser scanning for accurate measurements
Implementation Method 2
using photogrammetry and laser scanning for accurate measurements
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A fairing can be attached to a prosthetic limb or over a brace to alter the appearance of the prosthetic limb or brace. The outer surface of the prosthetic limb can be a mirror image of an intact limb and the outer surface of the brace can have an outer surface that corresponds to an injured limb. Because the fairing fits closely around the prosthetic limb or brace, the interior surface of the fairing has a surface that corresponds to a mirror image of an intact limb or an outer surface of an injured limb.