A heart sound signal analysis method, device and system
A technology for analyzing devices and heart sounds, applied in instruments, applications, stethoscopes, etc., to achieve the effect of eliminating the interference of external noise, improving accuracy, and improving accuracy
Active Publication Date: 2019-12-24
XIHUA UNIV
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[0004] In the prior art, the phonocardiogram obtained according to the heart sound signal is a one-dimensional waveform diagram. For those who generally have no basic medical knowledge or experience in cardiovascular disease, the one-dimensional waveform diagram cannot accurately understand the physiological parameters corresponding to the waveform diagram. information or pathological information, it is impossible to accurately judge whether there is cardiovascular disease in the early stage
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[0064] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0065] The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the above drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device compris...
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The embodiment of the invention discloses a heart sound signal analysis method. The method includes the steps that acquired heart sound signals are preprocessed to obtain envelop heart sound signals, then the envelop signals are subjected to quantization coding and segmented processing to obtain a heart sound image matrix of the heart sound signals, a heart sound image map of RGB color space is established according to the heart sound image matrix, characteristic parameters capable of reflecting heart physiological information and pathological information are extracted from the heart sound image map, and the heart status of a person to be tested is evaluated through the characteristic parameters and the color change of the heart sound image map. The intensity of heart sound is represented through the brightness of colors, the change of the heart sound signals is represented through the change of the colors, and the method is convenient, brief, visual and easy to understand. The influence of pulse type noise is effectively eliminated, and the accuracy of whole heart sound analysis is improved. In addition, the embodiment of the invention provides a corresponding implementation device and system. Furthermore, the method has higher practicality, and the device and system have corresponding advantages.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of medical device preparation, in particular to a heart sound signal analysis method, device and system. Background technique [0002] With the fast-paced and increasing pressure of modern life, cardiovascular diseases are showing a trend of younger people, and early detection is of great value for the prevention and control of cardiovascular diseases. However, because human beings do not have enough time and energy to receive regular hospital medical examinations, cardiovascular diseases cannot be detected early and cannot be effectively controlled and prevented, which increases the death rate caused by cardiovascular diseases. [0003] Heart sound is the sound produced by the vibration caused by myocardial contraction, heart valve closure, and blood hitting the ventricular wall and aortic wall. It contains a large amount of physiological and pathological information of the heart a...
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IPC IPC(8): A61B7/04G06F3/01
CPCA61B7/006A61B7/04G06F3/015G06F2203/012
Inventor 刘栋博王海滨刘雪敬房玉唐自祥王维博刘忠明
Owner XIHUA UNIV