Modular Prosthetic Socket Segmentation for Dynamic Fit
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Solution Overview
Problem
Conventional prosthetic socket fabrication methods are time-consuming, inexact, and limited in modifiability, failing to accommodate the dynamic changes in the residual limb over time, particularly in resource-limited settings where patients with amputations often receive suboptimal care.
Innovation Solution
A modular prosthetic socket system comprising interchangeable components with common attachment features, allowing for direct fitting and adjustment to fit individual residual limbs, accommodating changes in shape and biomechanical demands through adjustable dimensions and contours, and incorporating features like moisture management systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional prosthetic socket fabrication methods using physical molds are used, then the socket can be made to fit the residual limb, but the process is time-consuming and the socket is substantially fixed in form with limited modifiability
Solution Approach 1:
The prosthetic socket is divided into multiple modular components that can be independently selected, adjusted, and assembled. This segmentation allows the socket to be customized for different residual limb shapes and sizes without requiring complete remanufacturing, thereby reducing fabrication time while maintaining adaptability.
Solution Approach 2:
The socket design incorporates adjustable and interchangeable components that allow dynamic adaptation to changing residual limb conditions. The modular system enables the socket to evolve with the patient's needs over time, providing ongoing adaptability without requiring time-consuming recasting processes.
2Measurement precision
If physical molds are used to capture residual limb dimensions, then the socket form is determined, but the process is inexact and does not accommodate dynamic changes in the residual limb over time
Solution Approach 1:
The modular socket components are pre-configured with adjustable features and interchangeable elements that allow for precise fitting. This preliminary preparation of multiple configuration options enables accurate measurement and fitting without relying on static physical molds, while also accommodating future changes in the residual limb.
3Manufacturing precision
If multiple check sockets are made to optimize fit, then the best option can be chosen, but the process is drawn out and time-consuming
Solution Approach 1:
By segmenting the socket into modular components, the system allows for precise fit optimization through selective assembly of pre-fabricated parts rather than manufacturing multiple complete sockets. This approach maintains manufacturing precision while dramatically improving fabrication efficiency.
Data Source
AI summary
The invention relates to a prosthetic socket for a residual limb of the lower extremity or upper extremity of an individual person. The residual limb has particular dimensions and anatomical contours; the prosthetic socket has dimensions and contours that fit the dimensions and contours of the residual limb. The prosthetic socket may also fit in a manner that is biomechanically particularly appropriate for the individual. The prosthetic socket is an assembly of components from groups of components that include (a) struts arranged longitudinally with respect to the residual limb, (b) proximal brim members arranged proximally to the struts and connected thereto; and (c) distal socket members disposed at the distal base of the prosthetic socket. The socket components within these groups may be modular in that they can vary with respect to dimensions and/or contours, and yet have common connecting features that permit assembly of the components together to form the prosthetic socket.