Motion Sensor Pressure Ulcer Risk Detection System
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Solution Overview
Problem
Current pressure ulcer risk assessment scales are limited by their subjective nature and lack of continuous evaluation, often failing to accurately predict pressure sore development, leading to inappropriate prevention measures and high public health costs.
Innovation Solution
A method using motion sensors to measure and analyze the frequency and amplitude of a bedridden individual's movements, providing a pressure ulcer risk indicator and alert system that is objective and continuous, thereby improving prevention strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional pressure ulcer risk assessment scales are used, then the assessment process is simple and quick, but the assessment is subjective and lacks continuous evaluation, leading to inaccurate predictions
Solution Approach 1:
The patent replaces manual subjective assessment with an automated sensor-based system. Motion sensors objectively detect and quantify patient movements, replacing the mechanical/subjective observer-based evaluation with an automated measurement system that provides continuous, unbiased data on movement frequency and amplitude.
Solution Approach 2:
The system implements continuous monitoring through motion sensors that operate throughout the day, capturing movement data without interruption. This continuous collection of data allows for ongoing risk assessment rather than periodic manual evaluations, improving accuracy while maintaining system operation.
2Reliability
If manual observation and assessment scales are used, then the system is easy to implement, but it introduces subjectivity and does not provide continuous evaluation
Solution Approach 1:
The patent replaces manual observation with automated motion sensors that objectively measure movement parameters. The sensors continuously capture movement data without human intervention, eliminating subjectivity while the automated processing provides reliable, consistent risk assessment results.
3Measurement precision
If continuous monitoring with motion sensors is implemented, then objective and continuous assessment is achieved, but the system complexity and cost increase
Solution Approach 1:
The system divides the monitoring function into separate modular components: motion sensors for detection, processing unit for analysis, and alert generation. This segmentation allows each component to be optimized independently and facilitates easier implementation while maintaining high measurement precision through specialized sensor technology.
Data Source
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AI summary
Device (1) for the prevention of pressure ulcer formation, the device (1) comprising: - sensors (3) arranged between the support and the individual, the sensors (3) being arranged so as to indicate the presence of an object on the support; - a housing (4) connected to the sensors (3), the housing (4) being equipped with: o a control element (10), configured to carry out the steps of a process (100) comprising: - a measurement step (110); - a step (121, 122, 123, 124, 125) for calculating an indicator of the contact surface of the individual with the support; - a step (130) for detecting the presence of the individual on the support as a function of the indicator of the contact surface of the individual with the support; - a step (140) of detecting the absence of movement carried out by the individual according to the indicator of the calculated contact surface, if the presence of an individual is detected on the support;- a step (150) for detecting the amplitude of movements made by the individual based on a variation over time of the calculated contact area indicator, if no movement is detected; - a step (160) for notifying the individual's status; o a memory (12) capable of recording the steps of the process (100); - a monitoring terminal (11) capable of displaying the step (160) of notifying the individual's status.