Walking Training Harness With Vertical Guide Mechanism
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Solution Overview
Problem
Existing walking training systems are inadequate in effectively assisting walking training, particularly for hemiplegic patients, as they fail to provide sufficient support and control over the pelvic girdle during walking motions.
Innovation Solution
A walking training system comprising a harness with a frame fixed to the trainee's trunk, an adjustable attaching member, and a guide mechanism allowing variable positioning in the up/down direction, along with a pulling unit that applies forces to assist pelvic motion, utilizing multiple pulling units and a control unit to dynamically adjust forces for effective walking training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed harness structure is used, then the structure is simple and stable, but it cannot adapt to different walking phases and pelvic positions
Solution Approach 1:
The harness incorporates movable components including a guide mechanism with a guide rail that allows the attaching member to move vertically, and a circumferential adjustment mechanism that enables rotational movement. These dynamic elements allow the harness to adapt to different pelvic positions and walking phases while maintaining a relatively simple overall structure.
Solution Approach 2:
The harness is divided into separate functional components: a frame fixed to the trunk, a movable attaching member, and independent adjustment mechanisms. This segmentation allows each component to perform its specific function while maintaining overall simplicity and enabling adaptability through coordinated movement of individual segments.
2Ease of operation
If pulling force is applied from fixed positions, then the structure is stable, but it cannot simulate natural walking motions effectively
Solution Approach 1:
The pulling unit employs a guide mechanism with a guide rail that directs the pulling force dynamically as the attaching member moves vertically and circumferentially. This dynamic guidance system enables the pulling force to be applied in naturally varying directions throughout the walking cycle, simulating natural pelvic motion without requiring complex multi-actuator systems.
3Reliability
If the attaching member position is fixed, then the structure is simple, but it cannot provide appropriate support during different phases of walking
Solution Approach 1:
The attaching member is equipped with a guide mechanism featuring a guide rail that enables vertical movement, and a circumferential adjustment mechanism that allows rotational movement. These dynamic positioning capabilities enable the attaching member to provide appropriate support during different phases of walking by adapting its position to the pelvic girdle's natural movements.
Solution Approach 2:
The guide mechanism acts as an intermediary between the fixed frame and the movable attaching member, providing a simple yet effective means of controlled movement. The guide rail and associated mechanisms mediate the relationship between structural simplicity and functional adaptability, enabling reliable support without complex actuation systems.
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 effectively assists walking training by providing controlled and adjustable forces to the pelvic girdle, enhancing the training experience for hemiplegic patients by simulating natural walking motions and reducing the load on the trainee.
Implementation Method 1
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Data Source
AI summary
A walking training system, a harness, and an operation method capable of performing training effectively are provided. A walking training system according to an embodiment includes a harness attached to a trainee's trunk and a pulling unit configured to apply a pulling force to the harness, the harness includes a frame fixed to the trainee's trunk, an attaching member to which the pulling unit is attached, and a guide mechanism configured to enable a position of the frame relative to the attaching member to be variable in an up/down direction.