Bed device
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Solution Overview
Problem
Conventional bed devices require constant operator attention to prevent hazardous situations, especially in home care settings where operators are not skilled in controlling the devices, leading to increased risk and burden.
Innovation Solution
A bed device equipped with an operation section, controller, detector, and limitation table that detects patient position and adjusts bed operations accordingly, allowing for automatic limitation and notification of potentially hazardous situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If alarm notification is implemented to warn operators of hazardous patient positions, then operator awareness of risks is improved, but operator burden increases as they must constantly monitor and manually intervene
Solution Approach 1:
The bed device performs self-monitoring of patient position and self-control of operations through automatic limitation based on detected positions, eliminating the need for constant operator attention and manual intervention while maintaining safety
Solution Approach 2:
The system continuously detects patient position, compares it against predetermined safe zones, and automatically adjusts bed operations based on this feedback, creating a closed-loop control system that ensures safety without operator burden
2Measurement precision
If skilled personnel operate the bed device in hospital settings, then control precision and safety are improved, but adaptability to home care environments decreases where unskilled family members must operate the device
Solution Approach 1:
The bed device autonomously monitors patient position and controls operations based on predetermined safe zones, eliminating the need for operator expertise in judging patient position and making the system equally safe for unskilled family members to operate
Solution Approach 2:
The system pre-establishes safe position zones and operation limitations before operation begins, so that even unskilled operators cannot command hazardous movements, effectively embedding expert-level safety controls into the device itself
3Productivity
If automatic bed operations are performed without position-based limitation, then operational speed and productivity are improved, but patient safety deteriorates due to potential hazardous movements
Solution Approach 1:
The system dynamically adjusts operation limitations based on real-time patient position detection, allowing full operational speed when patient is in safe zones while automatically imposing limitations when hazardous positions are detected, thus maintaining both productivity and safety
Data Source
AI summary
A bed device includes: an operation section that receives an operation input; a controller that controls a movement of the bed in accordance with the operation input; a detector that detects a position of a patient on the bed; and, a limitation table that stores a limitation area set on the bed in association with a limitation content, wherein when the position of the patient detected by the detector is included in the limitation area, the limitation content is read out from the limitation table so as to control the controller in accordance with the limitation content. With this configuration, it is possible to provide a higher safety bed device which can not only notify the danger based on the bed movement but also limit the movement of the bed in accordance with the status of the patient or the bed device.