Compact Blood Pressure Module Using Micro Pump and Gas Bag
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Solution Overview
Problem
Current blood pressure measurement devices are large and cumbersome, making it difficult for users to monitor their blood pressure conveniently and regularly, especially outside of medical settings.
Innovation Solution
A compact blood pressure measurement module comprising a top cover, micro pump, driving circuit board, and pressure sensor, which inflates a gas bag to press against the skin, allowing for accurate blood pressure measurement through a pressure sensor controlled by the driving circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional blood pressure measurement devices are used, then measurement accuracy is maintained, but device size becomes too large to be carried easily
Solution Approach 1:
The blood pressure measurement device is divided into separate functional modules: a wearable device portion and a measurement module that can be detached. The measurement module includes its own micro pump, pressure sensor, and gas bag, allowing it to function independently while maintaining accuracy. This segmentation enables the measurement module to be compact and portable without sacrificing measurement precision.
Solution Approach 2:
The measurement module is designed to be nested within or attached to the wearable device. The gas collection chamber is recessed into the accommodation trough, and the micro pump is positioned to cover the gas collection chamber, creating a compact nested structure that reduces overall device volume while maintaining all necessary functional components for accurate blood pressure measurement.
2Measurement precision
If fixed blood pressure measurement instruments are used, then measurement accuracy is ensured, but convenience of regular monitoring is reduced
Solution Approach 1:
The measurement module is designed to be self-contained with integrated power supply, micro pump, pressure sensor, and gas bag. It can autonomously perform blood pressure measurements without requiring external equipment or professional medical staff. The module attaches to the wearable device and automatically conducts measurements, enabling users to monitor their own blood pressure conveniently at home or during daily activities.
Solution Approach 2:
The measurement module transitions from static fixed instruments to a dynamic portable system that can be worn on the body. The module is designed to attach to and detach from the wearable device, allowing users to move freely while maintaining measurement capability. This dynamic design enables regular monitoring during various activities without being constrained by fixed measurement locations.
3Volume of moving object
If compact measurement modules are designed, then portability is improved, but device complexity increases
Solution Approach 1:
Multiple functional components are merged into a single integrated measurement module: the micro pump, pressure sensor, gas bag, gas collection chamber, and accommodation trough are combined in one compact unit. This merging reduces the number of separate parts and simplifies the overall structure, making the module more portable while actually reducing complexity despite the advanced functionality integrated within.
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
Enables users to conveniently and accurately measure blood pressure anywhere, making it suitable for integration with wearable or portable devices, enhancing personal health monitoring capabilities.
Implementation Method 1
The pressure sensor is fixedly disposed on the driving circuit board and electrically connected to the driving circuit board. The driving circuit board covers the accommodation trough of the top cover so as to detect a pressure of gas guided into the accommodation trough.
Implementation Method 2
The micro pump is disposed in the accommodation trough to cover the gas collection chamber. The operation of the micro pump is controlled by the driving circuit board for a gas transmission, so that a gas outside the top cover is guided into the accommodation trough through the gas inlet hole.
Data Source
AI summary
A blood pressure measurement module includes a top cover, a micro pump, a driving circuit board, and a pressure sensor. The top cover has a gas inlet hole, an accommodation trough, and an outlet channel. An inner wall of the accommodation trough is recessed to form a gas collection chamber in communication with the gas inlet hole, and the outlet channel is connected to a gas bag. The pressure sensor is electrically connected to the driving circuit board. The driving circuit board covers the accommodation trough of the top cover. The operation of the micro pump is controlled by the driving circuit board. The gas is continuously guided to the outlet channel and is converged at the gas bag by the micro pump. When the pressure of the gas in the gas bag measured by the pressure sensor reaches a valve value, the micro pump stops its operation.