Swiveling Seat Support for Hyperlordosis-Free Verticalization
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Solution Overview
Problem
Existing delordosation devices for rehabilitation appliances, such as sit/stand exercise machines and wheelchairs, often cause hyperlordosis and backaches due to inadequate hip extension and pelvis support, leading to compression in the lumbar spine and potential nerve issues during verticalization.
Innovation Solution
A delordosation device with a swiveling seating surface that includes a movable portion, allowing for synchronized or delayed movement to facilitate pelvis rotation, thereby achieving full-range hip extension and relieving intervertebral disk pressure, using mechanisms like gas pressure springs, belt straps, and electromotive drives for adjustable support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the seating area is fixed during verticalization, then the structure is simple and stable, but the pelvis cannot be properly supported causing hyperlordosis and lumbar spine compression
Solution Approach 1:
The seating area is divided into a first seating area portion and a second seating area portion that can move independently relative to each other. This segmentation allows the second portion to provide active pelvis support during verticalization while the first portion remains relatively stable, thereby improving pelvis support quality without requiring complete structural redesign.
Solution Approach 2:
The second seating area portion is made movable relative to the first seating area portion through a movement mechanism. This dynamic element enables the seating area to adapt its configuration during verticalization, providing active pelvis support and preventing hyperlordosis while maintaining overall structural stability.
2Productivity
If the seating area swivels quickly to vertical position, then the verticalization process is fast, but hyperlordosis occurs due to inadequate pelvis rotation control
Solution Approach 1:
The movement mechanism enables the second seating area portion to move dynamically during the verticalization process, allowing for controlled pelvis rotation that prevents hyperlordosis while maintaining efficient verticalization speed.
Solution Approach 2:
The system changes the movement parameters of the seating area portions during verticalization, adjusting the relative movement between the first and second portions to optimize both the speed of verticalization and the quality of pelvis alignment, preventing hyperlordosis.
3Ease of operation
If manual therapy is used for delordosation, then proper pelvis rotation can be achieved, but it requires continuous therapist intervention and is not scalable
Solution Approach 1:
The movement mechanism automatically provides the pelvis rotation and support that previously required manual therapist intervention. The system self-regulates the movement of the second seating area portion relative to the first, enabling proper pelvis alignment during verticalization without continuous human intervention, thereby making the therapy scalable.
4Ease of operation
If the seating area is divided into multiple portions, then pelvis support is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The seating area is segmented into two main portions connected by a movement mechanism. This segmentation provides the necessary pelvis support functionality while maintaining a relatively simple two-component structure that is easier to manufacture and assemble compared to more complex multi-component 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 device enables verticalization without hyperlordosis, providing improved musculoskeletal support and reducing the risk of backaches by simulating therapeutic movements and enhancing stretching effects on the musculature, thus facilitating safe and effective standing for users with restricted mobility.
Implementation Method 1
gas pressure springs to ensure proper pelvis alignment and vertebral column extension
Data Source
AI summary
The invention relates to a delordosation device for users of a rehabilitation appliance, in particular for the verticalization of a sit/stand exercise machine or a wheel chair with a seating area and support aids for a user, the seating area supported in a swiveling manner swiveling for verticalization. To avoid hyperlordosis while patients with a restricted mobility are being straightened up in rehabilitation measures or a verticalization in a sit/stand exercise machine 1 or wheel chair, it is provided that the seating area is supported in a swiveling manner, and at least a portion of the seating area is mounted in a movable manner. Thus, a pelvis rotation can be initiated during verticalization, whereby hyperlordosis is avoided.