S-Shaped Spine Support with Dynamic Brace for EMT Lifting
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Solution Overview
Problem
Emergency medical technicians (EMTs) face frequent back injuries due to heavy lifting of medical equipment and patients, as current back braces restrict mobility and comfort by locking the back muscles and spine in one position.
Innovation Solution
A back support device featuring a flexible 'S' shaped support that conforms to the spine, coupled with a brace portion that forces the support toward the spine when bending, providing adjustable support and preventing hyperextension through a lacing system integrated into garments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current back braces lock the back muscles and spine in one position, then back support is provided, but mobility is limited and discomfort is created
Solution Approach 1:
The patent applies the dynamics principle by replacing static, rigid back braces with a dynamic system consisting of a flexible support that moves with the spine and a brace portion that actively pushes the flexible support toward the spine during bending. This allows the device to adapt to changing spinal positions while maintaining support, resolving the contradiction between reliability and ease of operation.
Solution Approach 2:
The patent changes the physical parameters of the back support from rigid and fixed to flexible and movable. The flexible support can deform and relocate along the spine, while the brace portion adjusts the force applied based on spinal position, enabling both support and mobility.
2Ease of operation
If a flexible support is used to maintain mobility, then comfort is improved, but support effectiveness is reduced without additional stabilization
Solution Approach 1:
The brace portion automatically activates when the wearer bends, using the bending motion itself to generate the supporting force. The system serves itself by converting the mechanical energy of bending into stabilizing force, maintaining support effectiveness while preserving mobility.
Solution Approach 2:
The dynamic interaction between the flexible support and brace portion creates adaptive support that engages when needed (during bending) and releases when not needed (during upright positions), maintaining both mobility and support effectiveness.
3Shape
If the flexible support extends along the spine in an S bend shape, then conformity to natural spine shape is improved, but additional support at the bottom end is needed to utilize the waistline as a fulcrum point
Solution Approach 1:
The patent applies local quality by providing enhanced support specifically at the bottom end of the flexible support where the brace portion is coupled. This localized reinforcement at the critical fulcrum point (waistline) stabilizes the S-bend shape without compromising the overall flexibility and spine conformity of the device.
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 allows EMTs to safely lift heavy loads by automatically adjusting to the lumbar shape, reducing back muscle fatigue and preventing hyperextension, while maintaining flexibility and comfort throughout the day.
Implementation Method 1
a flexible support adapted to be positioned adjacent a spine of a wearer, the flexible support extending along the spine in an 'S' shape
Implementation Method 2
a brace portion coupled to the flexible support at ends of the flexible support, adapted to force the flexible support toward the spine as a wearer bends
Implementation Method 3
providing adjustable support and preventing hyperextension through a lacing system integrated into garments
Data Source
AI summary
A back support device including a flexible support adapted to be positioned adjacent a spine of a wearer, the flexible support extending along the spine in an “S” shape. A brace portion is coupled to the flexible support at ends of the flexible support, and is adapted to force the spring portion toward the spine as a wearer bends.