CN103479386B - A kind of system based on sound transducer identifying and diagnosing rheumatic heart disease - Google Patents
A kind of system based on sound transducer identifying and diagnosing rheumatic heart disease Download PDFInfo
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- CN103479386B CN103479386B CN201310392642.6A CN201310392642A CN103479386B CN 103479386 B CN103479386 B CN 103479386B CN 201310392642 A CN201310392642 A CN 201310392642A CN 103479386 B CN103479386 B CN 103479386B
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Abstract
The present invention discloses a kind of system based on sound transducer identifying and diagnosing rheumatic heart disease, comprise some sound transducers on the surface, thoracic cavity be positioned over outside heart, described sound transducer is all connected with signal processing system, and described signal processing system is connected with monitor terminal equipment.A kind of method based on sound transducer identifying and diagnosing rheumatic heart disease, the steps include: the surface, thoracic cavity be arranged in by sound transducer outside human heart, the hear sounds that sound transducer detects passes to signal processing system and carries out three dimensional sound source location signal processing, finally acquire the position sending heart hum, this position will be shown on monitor terminal device screen with icon and three-dimensional coordinate form.Advantage of the present invention accurately auscultation can go out the situation of cardiac murmur, and can locate the position of noise sound source accurately, and can show in real time over the display.Utilize method and system equipment of the present invention, can must cross hear sounds very well and carry out diagnosticating rheumatic heart disease.
Description
Technical field
The present invention relates to a kind of system based on sound transducer identifying and diagnosing rheumatic heart disease and diagnostic method.
Background technology
Rheumatic heart disease refers to due to rheumatic fever activity, involves cardiac valve and the heart change caused.Easily there is respiratory tract infection in Patients With Rheumatic Valvular Disease, shows as resistance and decline, easily develop signs of a cold, easily merge bacteriological infection, and increase the weight of heart failure.Meanwhile, rheumatic heart disease patient can occur that labour's property is nervous, tachypnea, and health tolerance declines, and quality of life is obviously influenced.Therefore, diagnosticating rheumatic heart disease is very important exactly early.Analysis of PCG Signal is a kind of basic skills of assess cardiac function state.Hear sounds inspection has non-invasive, reproducible advantage.One of clinical manifestation that rheumatic heart disease is main is exactly that corresponding cardiac murmur appears in the valve area of pathological changes.Therefore hear sounds diagnosis is the cardiopathic a kind of very effective and basic means of diagnosticating rheumatic.
The clinical auscultation to cardiac murmur at present mainly uses conventional stethoscope, is made up of the conduit of resonance plate, sound resonance chamber and conduction sound.This kind of stethoscope can not identify faint cardiac murmur.Therefore accuracy is low.Certain people have also been developed the higher electronic stethoscope of degree of accuracy, and this kind of stethoscope is all often single, although can identify cardiac murmur, but can not accurately judge valve disorder position.
Summary of the invention
The object of the invention is not high for the precision existed in existing procucts and method or cannot the defects such as lesion locations be located, a kind of method and system equipment based on sound transducer identifying and diagnosing rheumatic heart disease is provided.The method and system equipment accurately auscultation can go out cardiac murmur, and can locate the position producing noise exactly, thus correct diagnosticating rheumatic heart disease.
This aspect for achieving the above object, adopts following technical scheme:
A kind of system based on sound transducer identifying and diagnosing rheumatic heart disease, it is characterized in that: the some sound transducers comprising the surface, thoracic cavity be positioned over outside heart, described sound transducer is all connected with signal processing system, and described signal processing system is connected with monitor terminal equipment;
Described sound transducer is for gathering cardiechema signals;
Described signal processing system is for the treatment of cardiechema signals, and localization of sound source;
Described monitor terminal equipment is for showing heart sound data and sound source position.
It is further characterized in that: described signal processing system comprises signal amplifier, wave filter, digital to analog converter and sound localization computing module;
The cardiechema signals that described signal amplifier gathers for amplifying each sound transducer;
Described wave filter is for filtering the noise of cardiechema signals;
Described digital to analog converter is used for the Heart Sound Simulation signal of filters filter to convert digital signal to;
Described sound localization computing module is used for localization of sound source.
Its further feature is also: described monitor terminal equipment can timesharing or simultaneously show all waveform harmony source location information on one screen.
A kind of method based on sound transducer identifying and diagnosing rheumatic heart disease, the steps include: the surface, thoracic cavity be arranged in by sound transducer outside human heart, the hear sounds that sound transducer detects passes to signal processing system and carries out three dimensional sound source location signal processing, finally acquire the position sending heart hum, thus determine the cardiac valve position that pathological changes lost efficacy, this position will be shown on monitor terminal device screen with icon and three-dimensional coordinate form.
Described sound transducer mostly is five most, at least can use when detecting hear sounds simultaneously, also only can use wherein one or several.
Advantage of the present invention accurately auscultation can go out the situation of cardiac murmur, and can locate the position of noise sound source accurately, to determine the valvular particular location of pathological changes, and can show in real time over the display.Utilize method and system equipment of the present invention, can must cross hear sounds very well and carry out diagnosticating rheumatic heart disease.
Accompanying drawing explanation
Fig. 1 sound transducer section front elevational schematic.
Fig. 2 sound transducer section schematic top plan view.
Fig. 3 many sound transducers schematic layout pattern.
Fig. 4 system equipment theory of constitution schematic diagram.
Detailed description of the invention
Embodiments of the invention are further illustrated below in conjunction with accompanying drawing:
If Fig. 1 and Fig. 2 is facing of novel sound transducer and schematic top plan view.Comprise silicon substrate 101, reserve mass 104 to silicon substrate after corroding, be connected between silicon substrate 101 and mass 104 by piezoelectric film 102, supporting construction 105 is also connected to silicon substrate 101 and mass 104 together simultaneously.The structure plan of piezoelectric film 102 and thickness can adopt the method for analytical model method or finite element modeling to determine, to ensure maximum sensitivity and enough intensity.The structure plan of supporting construction 105 and thickness also can adopt analytical model or finite element modeling method to determine, to ensure the sensitivity of enough support strengths and whole sensor.
If Fig. 3 is sound transducer composite module and placement location schematic diagram thereof.Sound transducer 301,302,303,304,305 are placed in the surface, thoracic cavity outside heart 306 respectively.Sound transducer 301 ~ 305 can use simultaneously, and also only can use wherein one or several, concrete usage quantity and accurate putting position are determined according to concrete condition.
As the principle schematic that Fig. 4 is whole system equipment, form primarily of sound transducer 401, signal processing system and display.Signal processing system comprises signal amplifier 402, wave filter 403, analog-digital converter 404 and sound localization computing module 405.Sound transducer 401 at the thoracic cavity acquisition surface of heart exterior to after vibration signal, signal amplifier 402 amplifies the signal of telecommunication collected, then amplifying signal enters into wave filter 403, the noise that elimination is unnecessary, analog digital conversion is carried out again by analog-digital converter 404, obtain digital signal, this digital signal can be divided into two parts to process.A kind of process adopts direct display packing, is directly presented at by the digital waveform of sound transducer on the screen of terminal display 406.Another kind of process, signal is sent into sound localization computing module 405 to calculate, must obtain with accurate the position sending heart hum, this position is shown with icon and digital form on the screen of terminal display 406, and digital form refers to and adopts three-dimensional coordinate to indicate to sound source position.
Present invention employs one or more high-precision sound transducer to monitor, diagnose and whether suffered from rheumatic heart disease and concrete lesion locations.Compared to traditional method and system equipment, the present invention can judge cardiac murmur and noise position more accurately, thus provides more scientific diagnosis basis for doctor.
Claims (3)
1. the system based on sound transducer identifying and diagnosing rheumatic heart disease, it is characterized in that: the some sound transducers comprising the surface, thoracic cavity be positioned over outside heart, described sound transducer is all connected with signal processing system, and described signal processing system is connected with monitor terminal equipment;
Described sound transducer is for gathering cardiechema signals;
Described signal processing system is for the treatment of cardiechema signals, and localization of sound source;
Described monitor terminal equipment is for showing heart sound data and sound source position;
Described sound transducer comprises silicon substrate (101), mass (104) is reserved after silicon substrate (101) is corroded, be connected by piezoelectric film (102) between described silicon substrate (101) and mass (104), supporting construction (105) is also connected to silicon substrate (101) and mass (104) together simultaneously.
2. the system based on sound transducer identifying and diagnosing rheumatic heart disease according to claim 1, is characterized in that: described signal processing system comprises signal amplifier, wave filter, digital to analog converter and sound localization computing module;
The cardiechema signals that described signal amplifier gathers for amplifying each sound transducer;
Described wave filter is for filtering the noise of cardiechema signals;
Described digital to analog converter is used for the Heart Sound Simulation signal of filters filter to convert digital signal to;
Described sound localization computing module is used for localization of sound source.
3. the system based on sound transducer identifying and diagnosing rheumatic heart disease according to claim 1, is characterized in that: described monitor terminal equipment can timesharing or simultaneously show all waveform harmony source location information on one screen.
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| CN201310392642.6A CN103479386B (en) | 2013-09-02 | 2013-09-02 | A kind of system based on sound transducer identifying and diagnosing rheumatic heart disease |
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| CN201310392642.6A CN103479386B (en) | 2013-09-02 | 2013-09-02 | A kind of system based on sound transducer identifying and diagnosing rheumatic heart disease |
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| CN103479386A CN103479386A (en) | 2014-01-01 |
| CN103479386B true CN103479386B (en) | 2015-09-30 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015106377A1 (en) * | 2014-01-14 | 2015-07-23 | 无锡慧思顿科技有限公司 | Device and method of operation thereof, used for aiding in psychological or physiological training |
| US11116478B2 (en) | 2016-02-17 | 2021-09-14 | Sanolla Ltd. | Diagnosis of pathologies using infrasonic signatures |
| US11000257B2 (en) | 2016-02-17 | 2021-05-11 | Sanolla Ltd. | Digital stethoscopes, and auscultation and imaging systems |
| CN106108940A (en) * | 2016-08-31 | 2016-11-16 | 周辉 | A kind of household intelligent electronic stethoscope |
| USD865167S1 (en) | 2017-12-20 | 2019-10-29 | Bat Call D. Adler Ltd. | Digital stethoscope |
| CN109172047B (en) * | 2018-09-18 | 2023-09-15 | 上海工程技术大学 | Prosthetic heart valve function test system |
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| CN201912114U (en) * | 2010-12-27 | 2011-08-03 | 北京超思电子技术有限责任公司 | Visual stethoscope |
| CN102149329A (en) * | 2008-09-10 | 2011-08-10 | 皇家飞利浦电子股份有限公司 | Method and system for locating a sound source |
| CN203506748U (en) * | 2013-09-02 | 2014-04-02 | 无锡慧思顿科技有限公司 | System for recognizing and diagnosing rheumatic heart disease based on sound sensors |
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|---|---|---|---|---|
| US7806833B2 (en) * | 2006-04-27 | 2010-10-05 | Hd Medical Group Limited | Systems and methods for analysis and display of heart sounds |
| US7841445B2 (en) * | 2007-11-09 | 2010-11-30 | Joseph Berk | Dual-sensor stethoscope with electronic sensor |
| CN203027480U (en) * | 2012-12-28 | 2013-06-26 | 缪建民 | High-sensitivity piezoelectric silicon microphone |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149329A (en) * | 2008-09-10 | 2011-08-10 | 皇家飞利浦电子股份有限公司 | Method and system for locating a sound source |
| CN201912114U (en) * | 2010-12-27 | 2011-08-03 | 北京超思电子技术有限责任公司 | Visual stethoscope |
| CN203506748U (en) * | 2013-09-02 | 2014-04-02 | 无锡慧思顿科技有限公司 | System for recognizing and diagnosing rheumatic heart disease based on sound sensors |
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Effective date of registration: 20151021 Address after: 430075, No. 999, hi tech Road, East Lake hi tech Zone, Hubei, Wuhan Province, No. 14, building A, overseas talent building, future science and Technology City Patentee after: Wuhan FineMEMS Inc. Address before: 214135, Wuxi New District, Taihu Jiangsu international science and Technology Park, sensor network, University Science and Technology Park, building 530, C903 Patentee before: Wuxi Hui Sidun Science and Technology Ltd. Patentee before: Wuhan FineMEMS Inc. |