Gyroscope Sensor for Left Ventricular Twist Measurement
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Solution Overview
Problem
Current methods lack effective means to accurately measure changes in left ventricular twist of the heart, which is crucial for understanding heart pumping functionality, especially during blood flow occlusion.
Innovation Solution
An apparatus and method utilizing a gyroscope sensor to measure rotational heart movements, combined with an arterial occlusion device like a blood pressure cuff, to determine and control blood flow occlusion, and identify patterns in left ventricular twist changes, employing a processor and neural network for data analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a gyroscope sensor is used to measure rotational heart movements, then measurement precision of left ventricular twist is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical measurement systems with a gyroscope sensor that uses rotational mechanics to directly measure heart movements. The gyroscope sensor converts mechanical rotational movements into electrical signals that can be processed electronically, simplifying the overall measurement system while maintaining high precision.
Solution Approach 2:
The gyroscope sensor acts as an intermediary device that translates complex internal heart rotational movements into measurable external signals. By placing the sensor on the chest wall, it mediates between the internal cardiac mechanics and external measurement systems, enabling non-invasive precise measurement of left ventricular twist.
2Adaptability or versatility
If an arterial occlusion device is used to control blood flow occlusion, then ability to study heart function under occlusion conditions is improved, but device complexity and risk to subject increase
Solution Approach 1:
The arterial occlusion device is designed to perform multiple functions: it can occlude blood flow at controlled levels, monitor occlusion status through integrated sensors, and release occlusion when needed. This multi-functionality reduces the need for separate devices for each operation, simplifying the overall system while enhancing versatility in studying heart function under various occlusion conditions.
3Measurement precision
If neural network is used to identify patterns in left ventricular twist changes, then measurement precision and diagnostic accuracy are improved, but use of energy and computational resources increase
Solution Approach 1:
The neural network is trained in advance with extensive cardiac data to recognize patterns of left ventricular twist changes associated with various cardiac conditions. This preliminary training allows the system to make rapid, energy-efficient predictions during actual measurements, as the complex pattern recognition has already been performed during the offline training phase rather than during real-time data acquisition.
4Ease of operation
If gyroscope sensor is mounted on chest wall for non-invasive measurement, then ease of operation and subject comfort are improved, but measurement precision may be reduced compared to invasive methods
Solution Approach 1:
The patent uses a gyroscope sensor that leverages rotational mechanics and angular velocity measurement to indirectly assess left ventricular twist. This substitution of direct invasive mechanical measurement with rotational sensing allows non-invasive placement on the chest wall while maintaining measurement precision through sophisticated signal processing that extracts cardiac rotational information from the sensor data.
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 precise measurement and control of left ventricular twist changes, improving the understanding and monitoring of heart function during blood flow occlusion, enhancing cardiac performance assessment.
Implementation Method 1
a gyroscope sensor mounted on a subject, the gyroscope sensor configured to measure rotational movement of the subject's heart
Data Source
AI summary
An apparatus and a method are described in which a signal is received from a gyroscope sensor mounted on a subject. The gyroscope sensor is configured to measure rotational movement of the subject's heart, the signal being indicative of a left ventricular twist of the subject's heart. A change in the left ventricular twist of the subject's heart caused by occlusion of blood flow by an arterial occlusion device configured to selectively occlude blood flow of the subject is determined.