Non-Contact Pulse Sensing for Heart and Vessel Abnormality Detection
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Solution Overview
Problem
Existing technologies do not provide a method for detecting a pulse of a heart or a blood vessel and determining abnormalities in them.
Innovation Solution
A computer program and information processing system that utilizes infrared and millimeter wave sensors to detect pulses and determine abnormalities in the heart or blood vessels by identifying displacement sites on the body surface using machine learning models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-frequency electromagnetic waves are emitted to monitor living body information, then pulse detection capability is improved, but the ability to determine specific abnormalities in heart or blood vessels deteriorates
Solution Approach 1:
The patent segments the monitoring process into two distinct phases: first detecting pulse information using electromagnetic waves, then analyzing temporal changes in surface displacement to determine specific abnormalities. This segmentation allows each phase to be optimized independently, resolving the contradiction between general pulse detection and specific abnormality determination.
Solution Approach 2:
The patent introduces surface displacement temporal changes as an intermediary parameter between pulse detection and abnormality determination. By measuring how surface displacement changes over time at multiple points, the system bridges the gap between detecting pulses and identifying specific heart or blood vessel abnormalities.
2Reliability
If multiple parameters are monitored to determine abnormalities, then diagnostic accuracy is improved, but device complexity deteriorates
Solution Approach 1:
The patent makes the electromagnetic wave-based monitoring system multi-functional by enabling it to perform both pulse detection and specific abnormality determination using the same hardware infrastructure. The system analyzes temporal changes in surface displacement to achieve multiple diagnostic functions without adding separate dedicated devices, thus maintaining reliability while controlling complexity.
Solution Approach 2:
The patent changes the analysis parameter from static pulse information to dynamic temporal changes in surface displacement. By examining how displacement evolves over time rather than just measuring instantaneous values, the system achieves higher diagnostic accuracy using the same measurement setup, avoiding increased device complexity.
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 the detection of heart and blood vessel pulses and the identification of associated abnormalities, providing accurate and non-invasive monitoring.
Implementation Method 1
the sensor device 9 emits infrared rays 13a to a user and receives reflected light 13b
Implementation Method 2
emits millimeter waves 14a to a user and receives reflected light 14b, thereby detecting surface displacement
Data Source
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AI summary
An information processing method for determining an abnormality in a heart or a blood vessel of a living body, and the method includes: specifying a displacement site at which a surface of the living body is displaced due to the heart or the blood vessel and that is detectable from a first direction; specifying a displacement site at which the surface of the living body is displaced due to the heart or the blood vessel and that is detectable from a second direction; detecting a pulse of the heart or the blood vessel based on the displacement of the surface of the living body at each of the specified displacement sites; and determining an abnormality in the heart or the blood vessel based on information related to the detected pulse of the heart or the blood vessel.