Wrist Sphygmomanometer Automatic Mode Operation Restriction
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Solution Overview
Problem
Wrist-type sphygmomanometers can experience unintended operation during sleep, leading to incorrect automatic blood pressure measurement due to changes in posture, where the device's switch may be pressed against bedding, causing erroneous operation.
Innovation Solution
A wrist-type sphygmomanometer with an automatic blood pressure measurement mode that restricts operation unit functions when set, preventing unintended measurements by requiring specific input instructions, such as long presses, and utilizing a CPU to manage and schedule blood pressure measurements according to a predetermined schedule.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automatic blood pressure measurement mode is enabled, then blood pressure measurement can be performed automatically during sleep, but unintended operation may occur when the switch is pressed against bedding due to posture changes
Solution Approach 1:
The patent applies preliminary anti-action by implementing a restriction mechanism that prevents unintended operation of the automatic blood pressure measurement mode. When the device detects it is in automatic measurement mode, it restricts the functionality of operation units to prevent accidental activation or deactivation caused by posture changes during sleep. This preliminary protective measure ensures that the measurement mode remains stable and reliable throughout the automatic measurement process.
2Ease of operation
If operation units are made accessible for easy operation, then user can easily switch modes, but unintended operation occurs when device is worn during sleep
Solution Approach 1:
The patent applies dynamics by implementing a dynamic restriction mechanism that adapts the operation unit functionality based on the current measurement mode. When in automatic blood pressure measurement mode, the operation units are dynamically restricted to prevent unintended operation. When not in this mode, full operation functionality is restored. This dynamic adjustment resolves the contradiction between ease of operation and prevention of unintended operation during sleep.
Data Source
AI summary
A sphygmomanometer of the present invention is a sphygmomanometer having an automatic blood pressure measurement mode for automatically starting blood pressure measurement according to a predetermined schedule. The sphygmomanometer includes a sphygmomanometer main body configured to be mounted on a measured part and a plurality of operation units to which instructions different from each other are input, the operation units being provided on the sphygmomanometer main body. The operation unit includes an automatic blood pressure measurement mode operation unit to which an automatic blood pressure measurement mode instruction is input for switching a mode to the automatic blood pressure measurement mode. The sphygmomanometer includes a restriction unit that restricts a function of the operation unit when the sphygmomanometer is set in the automatic blood pressure measurement mode as a result of the automatic blood pressure measurement mode operation unit being operated.