Dynamic Prosthetic Socket Control for Fit and Pressure Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for a dynamic support apparatus that can accommodate user needs by changing geometry in response to the user, including residuum morphing or external mechanical prosthesis loading, to maintain a secure and comfortable fit with the body, while also maintaining a comfortable temperature and moisture environment.
Innovation Solution
A control unit system that includes a control unit with a charging interface, actuators, a detachable manifold, and a control system that controls the actuators based on sensor feedback to adjust pressure and geometry, ensuring a secure fit and comfortable environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the support apparatus uses a fixed rigid structure, then manufacturing is simple and cost-effective, but it cannot adapt to user needs or maintain a secure fit during movement
Solution Approach 1:
The support apparatus is divided into multiple modular components including a pelvic support portion, thoracic support portion, and connection elements that can be independently adjusted. This segmentation allows each component to be optimized for specific functions while maintaining overall adaptability without excessive complexity.
Solution Approach 2:
The apparatus incorporates dynamic adjustment mechanisms including movable connection elements, adjustable straps, and flexible materials that allow the structure to adapt to user movements and physiological changes. These dynamic features enable the rigid framework to accommodate flexible user needs without requiring complete structural redesign.
2Ease of operation
If the support apparatus uses adjustable components to maintain secure fit, then comfort and security are improved, but the device becomes more complex and difficult to operate
Solution Approach 1:
Multiple adjustment functions are combined into integrated mechanisms. For example, the connection elements between pelvic and thoracic portions serve both structural support and adjustment functions, while straps incorporate both securing and length-adjustment capabilities in single components, reducing the number of separate adjustment mechanisms.
Solution Approach 2:
The apparatus employs user-friendly adjustment mechanisms that allow users to independently modify the fit without assistance. Quick-release buckles, slide adjusters, and elastic components enable users to make adjustments themselves, improving ease of operation while maintaining security.
3Weight of moving object
If the support apparatus uses a lightweight design, then user comfort during movement is improved, but structural strength and stability are reduced
Solution Approach 1:
The support apparatus utilizes composite materials that combine lightweight properties with high strength characteristics. The framework employs materials such as aluminum alloys or carbon fiber composites that provide structural integrity while minimizing weight, allowing the apparatus to remain both strong and lightweight simultaneously.
Solution Approach 2:
The design incorporates curved and contoured elements that distribute mechanical loads more efficiently across the structure. The curved connection elements and contoured support surfaces optimize stress distribution, maintaining structural strength with reduced material usage and lower overall weight.
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 system provides a secure, comfortable, and adaptable fit by dynamically adjusting to user activity levels and environmental conditions, enhancing the usability and stability of prosthetic devices.
Implementation Method 1
at least one magnet located proximate to the control unit charging interface... when the magnet in the control unit is located proximate to the reed switch, the switch is activated
Data Source
AI summary
A control unit system. The system includes a control unit which includes a control unit charging interface, at least one magnet located proximate to the control unit charging interface, at least one actuator, a detachable manifold including at least one magnet, fluidly coupled to the at least one actuator, a pump connected to the at least one actuator for causing actuation thereof, and a control system for controlling the pump, wherein the control system controls the pump to actuate the at least one actuator at least in response to a signal received by the control system. The system also includes a recharging device configured to receive the control unit, the recharging device including a reed switch, wherein when the magnet in the control unit is located proximate to the reed switch, the switch is activated.