Flexible Support Structure for Automated Patient Turning
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Solution Overview
Problem
Current devices and methods for preventing decubitus ulcers are inadequate, particularly due to limitations in managing tissue pressure and moisture, and the need for labor-intensive patient turning, which is exacerbated by the increasing elderly population and economic constraints.
Innovation Solution
A device with a flexible body support structure that automatically changes configuration to turn a person from one side to the other, using actuators to enfold, rotate, and pivot the person within the support structure, thereby reducing pressure points and preventing ulcers without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If manual patient turning is performed to prevent decubitus ulcers, then pressure redistribution is achieved, but labor intensity and infection risk increase
Solution Approach 1:
The system performs patient turning automatically without requiring manual intervention by caregivers. Sensors detect patient position and pressure distribution, triggering automated actuators that adjust mattress inclination and elevate limbs to redistribute pressure, thereby eliminating the need for labor-intensive manual turning while continuously preventing decubitus ulcers
Solution Approach 2:
The patent replaces the mechanical manual turning process with an automated control system that uses sensors, microprocessors, and electric actuators. The system substitutes human physical effort with automated mechanical adjustment of mattress angle and limb positioning, reducing labor intensity while maintaining effective pressure redistribution
2Ease of operation
If automated mattress tilting is used to turn patients, then labor intensity is reduced, but abrupt movements and fall risk may occur
Solution Approach 1:
The system employs dynamic, gradual adjustment of mattress inclination through controlled actuation rather than sudden tilting. The mattress angle is modified incrementally over time, allowing the patient's body to adapt smoothly and preventing abrupt movements that could cause discomfort or safety issues, while still achieving effective position changes to prevent decubitus ulcers
Solution Approach 2:
The system prepares for safe patient repositioning by first adjusting the mattress to a gentle incline and then sequentially elevating limbs using integrated actuators. This staged approach cushions the transition and prevents sudden shifts that could lead to falls or discomfort, ensuring safety while reducing labor requirements
3Object-affected harmful factors
If continuous pressure monitoring is implemented, then decubitus ulcer prevention is improved, but device complexity increases
Solution Approach 1:
The mattress integrates multiple functions into a single system: pressure sensing, position detection, automated tilting, and limb elevation. This multi-functional design achieves comprehensive decubitus ulcer prevention through pressure monitoring and active repositioning without requiring separate independent devices, thereby managing complexity while improving pressure management effectiveness
Data Source
AI summary
This invention can help a person in bed to avoid decubitus ulcers. This device has a flexible body support structure (such as a sheet or blanket) which is automatically moved from a first configuration which is flat to a second configuration which enfolds and/or wraps around a person's body. The device turns a person from lying on their first side to lying on their opposite side by: enfolding the person in the support structure; rotating or pivoting the support structure; and then releasing the person by unfolding the support structure.