Blood Pressure Sensor Module with Liquid-Filled Equalization Sheet
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Solution Overview
Problem
Existing blood pressure measurement technologies struggle to accurately measure blood pressure continuously over a long period, especially in relation to time-based changes, which are crucial for analyzing cardiovascular disease risks.
Innovation Solution
A sensor module that includes a base portion, a pressure equalization sheet filled with liquid or gas, a sensor unit with multiple sensors, and stoppers to maintain uniform pressure and prevent deformation of the pressure equalization sheet, allowing for stable and accurate blood pressure measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are used to measure blood pressure, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The sensor module divides the measurement function into multiple sensors arranged in an array, with each sensor contributing to the overall measurement precision. The sensors are segmented and distributed across the measurement surface to capture pressure distribution information.
Solution Approach 2:
A pressure equalization sheet filled with liquid or gas is introduced as an intermediary between the sensors and the object being measured. This sheet equalizes the pressure across all sensors, ensuring uniform measurement conditions and improving accuracy while simplifying the interaction between multiple sensors and the target object.
2Reliability
If pressure is applied to multiple sensors simultaneously, then measurement reliability is improved, but pressure uniformity deteriorates
Solution Approach 1:
The pressure equalization sheet acts as a mediator that receives pressure from the measurement target and distributes it uniformly across all sensors. The liquid or gas filling allows the sheet to conform to pressure variations and ensure equal pressure transmission to each sensor element.
Solution Approach 2:
The pressure equalization sheet changes its physical state or properties to achieve pressure equalization. The liquid or gas filling allows the sheet to adapt its shape and pressure distribution characteristics, transforming non-uniform pressure input into uniform pressure output across the sensor array.
3Adaptability or versatility
If the pressure equalization sheet is made flexible to conform to the measurement target, then adaptability is improved, but structural stability deteriorates
Solution Approach 1:
The pressure equalization sheet is constructed as a flexible thin film or shell structure that can conform to the surface of the measurement target. This flexible structure maintains its integrity while adapting to different shapes and sizes of objects being measured.
Solution Approach 2:
The pressure equalization sheet is filled with liquid or gas, utilizing hydraulic or pneumatic principles to maintain structural stability while remaining flexible. The fluid filling provides internal pressure support that prevents the thin film from collapsing or deforming excessively, ensuring both adaptability and stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The sensor module enables accurate and continuous measurement of blood pressure by ensuring uniform pressure application across multiple sensors, thereby improving the analysis of cardiovascular disease risks associated with time-based blood pressure changes.
Implementation Method 1
a pressure equalization sheet disposed on one side of the base portion and filled with liquid or gas
Data Source
AI summary
A sensor module for measuring blood pressure includes a base portion, a pressure equalization sheet placed on one side of the base portion and filled with liquid or gas, a sensor unit including at least one sensor placed on one side of the pressure equalization sheet, and stoppers configured to be in close contact with the pressure equalization sheet and face each other.