Integrated ECG-PCG Sensor for Synchronous Cardiac Signal Capture
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Solution Overview
Problem
Existing methods for synchronously acquiring ECG and PCG signals are inefficient due to the need for separate attachment of suction cup electrodes and manual pressing of a stethoscope, complicating the acquisition process.
Innovation Solution
An ECG-PCG synchronous acquisition device integrating a conductive adsorption unit with an acquisition unit, allowing simultaneous ECG and PCG signal acquisition by stable adhesion to the skin, eliminating the need for manual positioning and continuous pressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If suction cup electrodes are attached to the chest first and then a PCG sensor is manually pressed and held, then ECG and PCG signals can be acquired, but the acquisition process becomes complex and inefficient
Solution Approach 1:
The patent combines the ECG electrode and PCG sensor into a single integrated sensor that can simultaneously acquire both ECG and PCG signals. This merging eliminates the need for separate attachment of suction cup electrodes and manual pressing of stethoscope, directly resolving the technical contradiction by improving acquisition efficiency while reducing process complexity.
2Duration of action of moving object
If manual pressing of stethoscope is used for PCG detection, then PCG signals can be obtained, but continuous signal acquisition is difficult and operation time increases
Solution Approach 1:
The integrated sensor is designed to be attached once to the chest and then automatically maintains continuous contact for simultaneous ECG and PCG acquisition. The device serves itself by maintaining stable adhesion without requiring continuous manual adjustment or pressing, thereby enabling continuous signal acquisition and reducing operation time.
3Reliability
If separate ECG and PCG detection methods are used, then each signal can be detected with conventional means, but synchronous acquisition is not achieved and detection process is complicated
Solution Approach 1:
The patent integrates both ECG electrode and PCG sensor functions into a single device that can be attached once to achieve synchronous acquisition. This maintains the reliability of both detection methods while dramatically simplifying the operation process, as the integrated sensor simultaneously captures both signals without requiring separate manual operations.
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
Enhances the convenience and efficiency of synchronous acquisition, simplifying the medical detection process and reducing operation time by ensuring continuous ECG signal acquisition and simultaneous PCG signal capture.
Implementation Method 1
a hollow suction ball defining a negative pressure cavity and an air intake port connected to the negative pressure cavity
Data Source
AI summary
An electrocardiogram (ECG)-phonocardiogram (PCG) synchronous acquisition device and an ECG-PCG detection system are provided. The ECG-PCG synchronous acquisition device includes a conductive adsorption unit configured to be absorbed to human skin; and an acquisition unit connected to the conductive adsorption unit. The acquisition unit is configured to acquire ECG signals directly, and simultaneously acquire PCG signals through the conductive adsorption unit. The ECG-PCG synchronous acquisition device and the ECG-PCG detection system are used to solve the technical problem of low efficiency in synchronously acquiring electrocardiogram signals and heart sound signals in the related art.