Dynamic Prosthetic Support Pressure Control for Fit Stability
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Solution Overview
Problem
There is a need for a dynamic support apparatus that can adapt to the user's body by changing geometry in response to morphing residuum or external mechanical loading, while maintaining a secure, comfortable fit and a comfortable temperature and moisture environment, which existing prosthetic devices fail to provide effectively.
Innovation Solution
A control unit with actuators, sensors, and a control system that adjusts the pressure of the actuators based on detected pressure changes, user activity levels, and safety thresholds, using a detachable manifold and valves to control airflow and maintain a constant pressure, allowing the apparatus to change geometry and adapt to the user's needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the support apparatus uses a fixed geometry structure, then the manufacturing is simpler and device complexity is reduced, but it cannot adapt to user's body changes and maintains poor fit comfort
Solution Approach 1:
The support apparatus employs dynamic geometry adjustment through actuators that can change the shape and configuration of the support structure in real-time. The control system receives input from sensors detecting body changes and actively adjusts the support geometry to maintain optimal fit and comfort, transforming a static structure into an adaptive dynamic system.
Solution Approach 2:
The apparatus changes physical parameters such as shape, volume, and structural configuration through actuator activation. By modifying geometric parameters dynamically in response to detected body changes, the system maintains adaptability while managing complexity through controlled parameter adjustment rather than complete structural redesign.
2Ease of operation
If the support apparatus uses dynamic geometry adjustment, then the fit comfort and adaptability improve, but the device complexity increases
Solution Approach 1:
The control system operates autonomously by continuously monitoring body changes through sensors and automatically adjusting the support geometry without requiring manual user intervention. This self-regulating mechanism maintains optimal fit comfort while reducing the operational burden on the user, effectively managing the trade-off between comfort and complexity.
Solution Approach 2:
The system implements a closed-loop feedback mechanism where sensors detect body changes and transmit information to the control system, which then adjusts the actuator positions to maintain optimal fit. This continuous feedback loop ensures comfort while managing complexity through automated control rather than manual adjustment mechanisms.
3Stability of the object's composition
If the support apparatus increases pressure to maintain secure fit, then the fit stability improves, but the comfort and temperature control deteriorate
Solution Approach 1:
The support apparatus dynamically adjusts pressure distribution rather than maintaining constant high pressure. By modulating pressure levels and distribution patterns in response to detected body changes and comfort parameters, the system maintains fit stability while preventing excessive pressure that would cause temperature and moisture discomfort.
Solution Approach 2:
The system applies different pressure levels to different regions of the support apparatus based on local body characteristics and comfort requirements. By customizing pressure distribution spatially, the system maintains secure fit in critical areas while reducing pressure in areas where temperature and moisture control are priorities.
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 solution provides a secure, comfortable, and adaptable fit, ensuring stability and comfort by dynamically adjusting to the user's body changes and activity levels, while also maintaining a safe temperature and moisture environment.
Implementation Method 1
a sensor detecting a pressure of the at least one actuator
Implementation Method 2
a pump connected to the at least one actuator for causing actuation thereof
Implementation Method 3
the detachable manifold may be attached to the control unit using magnetic force
Implementation Method 4
at least one valve allowing the control system to control airflow through the detachable manifold
Data Source
AI summary
A dynamic support system includes a control system for controlling inflation and deflation of at least one actuator having an inlet connectable to the a control unit of the dynamic support system. The control unit may be in communication with a sensor and may control inflation and deflation of the at least one actuator in response to information provided by the sensor.