Configurable Assistive Device with Adjustable Leg Mechanisms
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Solution Overview
Problem
Mobility impaired and elderly individuals face challenges with the cost and complexity of using multiple assistive devices for different needs, and transferring between these devices can be hazardous for both users and caregivers.
Innovation Solution
A configurable assistive device with a platform, multiple wheels, and independently controllable leg mechanisms that can adjust elevation and inclination, featuring a control system, gyroscopic sensor for self-leveling, and adjustable components like armrests and leg assemblies to facilitate various configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple different assistive devices are purchased for different needs, then the device versatility is improved, but the cost increases and device complexity increases
Solution Approach 1:
The assistive device is designed with multiple configurable positions and orientations through adjustable leg mechanisms, allowing a single device to perform functions previously requiring multiple separate devices (wheelchair, ceiling lift, standing lift, easy track). The platform can be positioned at various elevations and inclinations to accommodate different mobility needs, eliminating the need for purchasing several different assistive devices.
Solution Approach 2:
The device incorporates adjustable leg mechanisms that can dynamically change the platform's elevation and inclination angles. These mechanisms allow the device to transition between different operational configurations (e.g., wheelchair mode, standing lift mode, stair climbing mode) without requiring physical reconfiguration or multiple devices, thereby reducing overall system complexity while maintaining high versatility.
2Adaptability or versatility
If multiple different assistive devices are used for different needs, then the device versatility is improved, but the cost increases
Solution Approach 1:
The assistive device is designed with multiple configurable positions and orientations through adjustable leg mechanisms, allowing a single device to perform functions previously requiring multiple separate devices (wheelchair, ceiling lift, standing lift, easy track). The platform can be positioned at various elevations and inclinations to accommodate different mobility needs, eliminating the need for purchasing several different assistive devices.
3Adaptability or versatility
If transferring between different assistive devices is performed, then the device versatility is improved, but the safety decreases due to transfer risks
Solution Approach 1:
The device merges the functions of multiple assistive devices into a single unified platform that can assume various configurations. By combining wheelchair, standing lift, and stair climbing capabilities into one device with adjustable leg mechanisms, the need to transfer between separate devices is eliminated, thereby removing the associated safety risks while preserving versatility.
Solution Approach 2:
The device incorporates adjustable leg mechanisms that can dynamically change the platform's elevation and inclination angles. These mechanisms allow the device to transition between different operational configurations (e.g., wheelchair mode, standing lift mode, stair climbing mode) without requiring physical reconfiguration or multiple devices, thereby reducing overall system complexity while maintaining high versatility.
4Adaptability or versatility
If the platform is positioned at high elevation and inclination, then the adaptability for different activities is improved, but the stability decreases
Solution Approach 1:
The device incorporates adjustable leg mechanisms that can dynamically change the platform's elevation and inclination angles. These mechanisms allow the device to transition between different operational configurations (e.g., wheelchair mode, standing lift mode, stair climbing mode) without requiring physical reconfiguration or multiple devices, thereby reducing overall system complexity while maintaining high versatility.
Solution Approach 2:
The gyroscopic sensor continuously monitors the platform's orientation and provides feedback to the control system. This feedback enables automatic adjustments to the leg mechanisms to maintain proper balance and stability, allowing the platform to operate safely at various elevations and inclinations without compromising structural integrity or user safety.
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 device reduces the need for multiple assistive devices, enhances safety by minimizing transfer risks, and provides versatility for different activities while maintaining stability on rough and inclined surfaces.
Implementation Method 1
a gyroscopic sensor configured to detect a change in a horizontal level of the platform
Data Source
AI summary
A configurable assistive device comprising: a platform; at least three wheels; and, at least three independent leg mechanisms, each respective leg mechanism coupled to the platform and a respective one of the at least three wheels, each respective leg mechanism configured to move the platform relative to the respective wheel for positioning the platform at an elevation and for inclining the platform to an inclination to configure the assistive device into one of a plurality of configurations.