Sleeping Position-Control Bed with Multi-Axis Tilt Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Bedridden patients often develop pressure ulcers and suffer from sleep disorders like sleep apnea, snoring, and teeth grinding due to inability to change their posture, leading to chronic sleep deprivation and potential health risks, including catastrophic accidents.
Innovation Solution
A bed system that can tilt in multiple directions to prevent pressure ulcers and detect parasomnias such as apnea, hypopnea, snoring, and teeth grinding, automatically adjusting the user's posture to reduce these issues by lifting the back and head surfaces or tilting the bed floor based on mathematical formulas and sensor data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the bed is tilted to help patients change posture, then pressure ulcer prevention is improved, but device complexity increases
Solution Approach 1:
The bed is divided into multiple independently controllable sections (head section, back section, leg section) that can be tilted at different angles. This segmentation allows the bed to achieve complex posture adjustments while using simpler individual actuators for each section, rather than requiring a single complex mechanism to move the entire bed.
Solution Approach 2:
The bed employs dynamic tilt angle adjustments where each section can be independently positioned at various angles. The system dynamically changes the bed configuration based on detected sleep disorders, transitioning between multiple stable positions rather than relying on a single fixed tilted position, thereby simplifying the overall mechanical design while achieving diverse posture control.
2Reliability
If the bed automatically adjusts posture to prevent sleep disorders, then sleep quality is improved, but device complexity increases
Solution Approach 1:
The system incorporates sensors that continuously monitor sleep parameters (breathing, heart rate, body position) and provide feedback to the control system. Based on this feedback, the bed automatically adjusts its tilt angles to optimize sleeping posture and prevent sleep disorders, creating a closed-loop control system that improves reliability while maintaining manageable complexity through automated decision-making.
Solution Approach 2:
The bed system performs self-adjustment of sleeping posture based on sensor data without requiring external intervention. The automated control system independently processes sensor information and executes posture corrections, enabling the system to serve itself in maintaining optimal sleeping conditions, thereby improving sleep quality while reducing the need for complex manual control mechanisms.
3Adaptability or versatility
If multiple sections of the bed are tilted at different angles, then adaptability to different sleeping conditions is improved, but device complexity increases
Solution Approach 1:
The bed is divided into multiple independently controllable sections (head section, back section, leg section) that can be tilted at different angles. This segmentation allows the bed to achieve complex posture adjustments while using simpler individual actuators for each section, rather than requiring a single complex mechanism to move the entire bed.
Solution Approach 2:
Each bed section is designed with universal tilt capability that can be applied to various sleeping conditions and patient needs. The same basic tilt mechanism serves multiple functions: preventing pressure ulcers, treating sleep apnea, reducing snoring, and accommodating different patient positions, thereby achieving high adaptability without proportionally increasing device complexity.
Data Source
AI summary
The sleeping-posture-control bed system includes a bed floor including a back-lifting portion for lifting the user's back, a bed-floor support body supporting the bed floor, and a back-lifting driver for lifting the head side of the back-lifting portion. The back-lifting portion includes a back-receiving surface and a head-receiving surface tiltable at different angles. The back-lifting driver lifts the back-receiving surface and the head-receiving surface, satisfying Mathematical Formula (1):0°<θx≦70°,−45°≦θy<0°, and −30°≦θx+θy (1)where θx is the tilt angle of the back-receiving surface when tilted, and the tilt angle of the back-receiving surface when the back-receiving surface is not lifted is set to be 0°; and θy is the tilt angle of the head-receiving surface when the angle of an extended line of the back-receiving surfaceat the tilt angle θx is referred to as 0°.