CN206507969U - A kind of portable cardiovascular disease diagnosis warning device - Google Patents
A kind of portable cardiovascular disease diagnosis warning device Download PDFInfo
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- CN206507969U CN206507969U CN201621028757.2U CN201621028757U CN206507969U CN 206507969 U CN206507969 U CN 206507969U CN 201621028757 U CN201621028757 U CN 201621028757U CN 206507969 U CN206507969 U CN 206507969U
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Abstract
The utility model is related to a kind of portable cardiovascular disease diagnosis warning device, including heart sound detector, denoising device, high-pass filter and signal contrast module, wherein, heart sound detector is used to heart sound is detected and gathered, and it communicates connection denoising device and can sent the signal collected to denoising device;Denoising device is used to remove external noise, and it communicates connection high-pass filter and can send the signal to high-pass filter;High-pass filter is used to remove low-frequency noise, and it communicates connection signal contrast module and can send the signal to signal contrast module;Signal contrast module is used to adaptively contrast the cardiechema signals collected.Using detector put special auscultation position with patient's heart to gather patient's heart sound, by sending early warning to the angiocardiopathy for comparing people with normal cardiac sound.
Description
Technical field
The utility model is related to the diagnostic instrments of angiocardiopathy, and in particular to a kind of portable cardiovascular disease diagnosis report
Alarm device.
Background technology
In recent years, with population structure change and aging rapid arrival, the morbidity of China's cardiovascular and cerebrovascular disease
Rate and the death rate are in the trend significantly risen, and oneself is through turning into the first killer of China human mortality health.According to incompletely statistics, mesh
All kinds of cardiovascular patients of preceding China about 2.3 hundred million, and the annual number dead because of angiocardiopathy of China is just up to 3,000,000 people
More than.And, the disability rate of angiocardiopathy is very high, even if survivor also is difficult to thorough rehabilitation, many patients from disease again
Therefore self-care ability is lost.This does not only result in the degradation of itself quality of life, also family and society is brought heavy
Burden.Angiocardiopathy has become most important a kind of disease that the world today seriously threatens the mankind.Therefore, how soon
Speed, it is accurate, early diagnosis is easily made to heart disease there is huge clinical meaning and scientific research value.
Existing heart detection method mainly includes stethoscope (conventional stethoscope, electronic auscultation device), phonocardiograph, electrocardio
Figure machine, ECG exercise test, echocardiogram, core angiography scans and coronary vasodilator are according to shadow art etc..Except stethoscope
In addition, the above method often making a definite diagnosis more suitable for heart disease, and need to intervene equipment and the operation of complexity.
Early diagnosis of the identification and analysis of cardiechema signals to angiocardiopathy has very important significance.Traditional heart
Sound is recognized and analysis is carried out by doctor by stethoscope, and its reliability and accuracy are poor, and is existed necessarily
Subjectivity, the doctor for only having certain experiences could recognize that popular colony can not accomplish OBD, it is difficult to popularize.They are high
High testing cost, which hinders them, turns into conventional detection means, while also bringing very big financial burden to patient.
With continuing to develop for signal disposal and analysis technology, the research to heart sound also progressively enters quantitative point by qualitative
The stage of analysis.One of key issue being related in heart sound quantitative analysis process is exactly the identification and segmentation of cardiechema signals.One
Cardiac cycle can be comprising 4 heart sound, and commonly referred to as S1, S2, S3, S4 can only hear S1 and S2 in most cases, therefore current carry out
Cardiechema signals recognize that the research object with being segmented is mainly S1 and S2.
And in fact, normal first heart sound S1 includes two compositions of bicuspid valve (M1) and tricuspid valve (T1).The overwhelming majority
Normal person can hear that M1 morning T1, in generation, belongs to the normal physiological division of first heart sound, both tone intensities are essentially identical.
First heart sound (S1) is produced by the closing that atrioventricular valve is bicuspid valve (M1) and tricuspid valve (T1), is the mark that ventricular systole starts
Will.Within the common 100ms of closing of atrioventricular valve, therefore, first heart sound (S1) sounds like a single sound.
For these reasons, at present on the market the equal None- identified bicuspid valve (M1) of stethoscope and tricuspid valve (T1).
Substantial amounts of clinical test confirms that the division of bicuspid valve (M1) and tricuspid valve (T1) or the asynchronous heart that implies are present
Pathological information, how effectively to distinguish bicuspid valve (M1) and the definite information of tricuspid valve (T1) turns into early diagnosis angiocardiopathy
One vital technical barrier.
The frequency range of heart sound is generally between 10Hz-1000Hz.Wherein first heart sound tone is relatively low, and its frequency is mainly divided
Cloth is in 10Hz-50Hz and 50Hz-140Hz middle low-frequency range;Second heart sound tone is higher, in low frequency and high-frequency range all
It is distributed, is concentrated mainly between tri- frequency ranges of 10Hz-80Hz, 80Hz-200Hz and 220Hz-400Hz.
A kind of portable cardiovascular disease diagnosis warning device on the basis of first heart sound and second heart sound is effectively distinguished,
Emphasis makes a distinction to the bicuspid valve (M1) and tricuspid valve (T1) of first heart sound, to effectively early diagnosis angiocardiopathy, side
Just, accurately, fast.
The content of the invention
For above prior art problem, the purpose of this utility model is to provide a kind of portable cardiovascular disease diagnosis
Warning device, is related in terms of heart sound detection, denoising, high-pass filtering, lifting wavelet transform, signal contrast, abnormal alarm.
The instrument contains speech recognition technology, biological information, computer software and hardware, network engineering, communication engineering and one, is a kind of
FA diagnostic device.Concrete technical scheme is as follows:
A kind of portable cardiovascular disease diagnosis warning device, including heart sound detector, denoising device, high-pass filter
And signal contrast module, wherein, the heart sound detector is used to heart sound is detected and gathered, and it is communicated at connection denoising
Reason device can simultaneously send the signal collected to denoising device;The denoising device is used to remove external noise, and it is communicated
Connection high-pass filter simultaneously can send the signal to high-pass filter;The high-pass filter is used to remove low-frequency noise, and it leads to
News connection signal contrast module simultaneously can send the signal to signal contrast module;The signal contrast module is used for collecting
Cardiechema signals are adaptively contrasted.
Further, in addition to lifting wavelet transform module, it is arranged between high-pass filter and signal contrast module,
And for improving the signal to noise ratio of output signal by lifting wavelet transform, it receives the signal from high-pass filter and will processing
Signal is sent to signal contrast module afterwards.
Further, in addition to alarm module, it is connected to signal contrast module, and for finding abnormal signal in contrast
Shi Jinhang alarms.
Further, the external noise includes the noise that ambient noise, industrial frequency noise and skin friction are produced, described
Low-frequency noise is low-frequency noise present in physiological signal.
Further, the bicuspid valve and tricuspid of first heart sound are gathered when the heart sound detector is acquired to heart sound simultaneously
Valve, and on the basis of the first and second heart sound are distinguished, distinguish the bicuspid valve and tricuspid valve of first heart sound.
Further, described heart sound detector is piezo-electric type, high-sensitivity resonance formula or wideband belt.
Further, sampling routine of attaching most importance in the denoising device carries out denoising, for what is detected to heart sound detector
The bicuspid valve and tricuspid valved signal of cardiechema signals and first heart sound carry out denoising.
Further, the denoising device filters out Hz noise using built-in LevKov filtered Softwares.
Compared with currently available technology, the utility model using detector put special auscultation position with patient's heart from
And patient's heart sound is gathered, by sending early warning to the angiocardiopathy for comparing people with normal cardiac sound.Specifically:
1st, a kind of supporting software of portable cardiovascular disease diagnosis warning device can enter measured heart sound information
Row analysis, and result is shown to user in simple and clear mode, help to find heart disease early, and to daily disease
Disease progression is monitored.
A kind of 2 portable cardiovascular disease diagnosis warning devices have higher than plain edition smart electronicses stethoscope accurate
Property, the first and second heart sound can be accurately told, and the bicuspid valve (M1) and tricuspid valve (T1) of first heart sound can be distinguished effectively
Angiocardiopathy is early diagnosed, it is convenient, accurate, quick.
3rd, a kind of portable cardiovascular disease diagnosis warning device is carried out simultaneously using multiple denoising mode, makes detection
As a result it is more accurate.
4th, a kind of portable cardiovascular disease diagnosis warning device compact, is easy to carry, can serve popular colony,
An effective means of diagnosis can be automatically analyzed as disease.
Brief description of the drawings
Fig. 1 is the bicuspid valve (M1) of normal first heart sound and the location diagram of tricuspid valve (T1)
Fig. 2 is the bicuspid valve (M1) of improper first heart sound and the location diagram of tricuspid valve (T1)
Fig. 3 is a kind of portable cardiovascular disease diagnosis warning device
Description of reference numerals:
A, heart sound detector
B, denoising device
C, high-pass filter
D, lifting wavelet transform
E, comparison software
F, warning device
Embodiment
The utility model is described in detail below according to accompanying drawing, it is one in the utility model numerous embodiments
Plant preferred embodiment.
In a preferred embodiment, a kind of portable cardiovascular disease diagnosis warning device includes:Heart sound detector A,
Denoising device B, high-pass filter C, lifting wavelet transform D, signal contrast software E normal bicuspid valve M1 and tricuspid valve T1 letter
Number, in terms of anomaly alarming device F.Heart sound detector A is detected to heart sound, and the heart sound detector is to 10Hz to the 1200Hz hearts
The dirty voice signal sent has higher sensitivity, on the basis of the first and second heart sound are distinguished, and emphasis distinguishes first heart sound
Bicuspid valve M1 and tricuspid valve T1;Heart sound detector is acquired to heart sound, while gathering the bicuspid valve M1 and three of first heart sound
Cusp T1, then removes noise produced from ambient noise, industrial frequency noise and skin friction etc. by denoising device B;
Low-frequency noise present in physiological signal is then removed by high-pass filter C;Output signal is improved by lifting wavelet transform D
Signal to noise ratio, so as to obtain clean real cardiechema signals, the cardiechema signals collected are entered finally by signal contrast software E
The adaptive contrast of row, passes to anomaly alarming device F by signal after noting abnormalities, reminds people to see a doctor in time.
In a further advantageous embodiment, following scheme can be used:A kind of portable cardiovascular disease diagnosis alarm dress
Put including:Heart sound detector, denoising device, high-pass filter, lifting wavelet transform, the normal bicuspid valve M1 and three of signal contrast
In terms of cusp T1 signals, abnormal alarm.It is characterized in that:Heart sound detector is detected to heart sound, the heart sound detector pair
The voice signal that 10Hz is sent to 1200Hz hearts has higher sensitivity, on the basis of the first and second heart sound are distinguished, weight
Point distinguishes the bicuspid valve M1 and tricuspid valve T1 of first heart sound;Heart sound detector is acquired to heart sound, while gathering first heart sound
Bicuspid valve M1 and tricuspid valve T1, then by denoising device remove come from ambient noise, industrial frequency noise and skin friction
Noise of generation etc.;Low-frequency noise present in physiological signal is then removed by high-pass filter;Pass through lifting wavelet transform
The signal to noise ratio of output signal is improved, so that clean real cardiechema signals are obtained, finally by signal contrast software to collecting
Cardiechema signals adaptively contrasted, signal is passed into anomaly alarming device after noting abnormalities, reminds people to see a doctor in time.
Described heart sound detector is detected to heart sound, the sound that the heart sound detector is sent to 10Hz to 1200Hz hearts
Message number has higher sensitivity, on the basis of the first and second heart sound are distinguished, and emphasis distinguishes the bicuspid valve M1 of first heart sound
With tricuspid valve T1;Heart sound detector is acquired to heart sound, while gathering the bicuspid valve M1 and tricuspid valve T1 of first heart sound, it can
Think piezo-electric type, high-sensitivity resonance formula, wideband belt etc..The heart sound letter that described denoising device is detected to heart sound detector
Number and bicuspid valve M1 and tricuspid valve the T1 signal of first heart sound carry out denoising, attach most importance in the denoising device sampling routine or
The other programs of person carry out denoising.Hz noise is filtered out using LevKov filtered Softwares simultaneously.After described denoising device denoising
Signal pass through high-pass filter remove physiological signal in low-frequency noise signal.The described heart crossed through high pass filter, processes
The boosted wavelet transformation D of message number strengthens some features of heart sound, improves signal to noise ratio.A series of treated hearts of described process
Message number is transferred in comparison software, and normal cardiac sound signal is contrasted, and warning device is alarmed after noting abnormalities, and is reminded
People see a doctor in time.
Heart sound detector is detected to heart sound, the voice signal that the heart sound detector is sent to 10Hz to 1200Hz hearts
There is higher sensitivity, on the basis of the first and second heart sound are distinguished, emphasis distinguishes the bicuspid valve M1 and tricuspid of first heart sound
Valve T1;Heart sound detector is acquired to heart sound, while the bicuspid valve M1 and tricuspid valve T1 of first heart sound are gathered, then by going
Processor of making an uproar removes noise from the generation of ambient noise, industrial frequency noise and skin friction etc.;Then pass through high-pass filter
Remove low-frequency noise present in physiological signal;The signal to noise ratio of output signal is improved by lifting wavelet transform, so as to be done
The cardiechema signals collected are adaptively contrasted, found different by net real cardiechema signals finally by signal contrast software
Signal is passed into anomaly alarming device after often, reminds people to see a doctor in time.
Below in conjunction with the accompanying drawings to the utility model the characteristics of, is further described:
One of the characteristics of the utility model is:Heart sound detector A is detected to heart sound, the heart sound detector to 10Hz extremely
The voice signal that 1200Hz hearts are sent has higher sensitivity, on the basis of the first and second heart sound are distinguished, and emphasis is distinguished
The bicuspid valve M1 and tricuspid valve T1 of first heart sound;Heart sound detector is acquired to heart sound, while gathering two points of first heart sound
Valve M1 and tricuspid valve T1, it can be piezo-electric type, high-sensitivity resonance formula, wideband belt etc..
The two of the characteristics of the utility model are:Denoising device B is to the heart sound detector A cardiechema signals detected and first heart
Bicuspid valve M1 and tricuspid valve the T1 signal of sound carry out attach most importance in denoising, the denoising device sampling routine or other programs
Carry out denoising.Hz noise is filtered out using LevKov filtered Softwares simultaneously.
The three of the characteristics of the utility model are:Signal after denoising device B denoisings removes physiology by high-pass filter C
Low-frequency noise signal in signal.
The four of the characteristics of the utility model are:Add through the high-pass filter C boosted wavelet transformation D of cardiechema signals treated
Some features of cardiac stimulant sound, improve signal to noise ratio.
The five of the characteristics of the utility model are:It is transferred to by a series of treated cardiechema signals in comparison software E, and
Normal cardiac sound signal is contrasted, and warning device F is alarmed after noting abnormalities, and reminds people to see a doctor in time.
According to the above, measure the utility model people has made a model machine:And many cases normal population and cardiac are entered
Test is gone, emphasis is gathered to the bicuspid valve M1 and tricuspid valve T1 signals of first heart sound, surveyed when to normal population
During examination, obtained cardiechema signals are not as shown in figure 1, device is alarmed, from figure 1 it appears that first heart of normal population
The bicuspid valve M1 of sound belongs to the normal physiological division of first heart sound earlier than tricuspid valve T1.Tested when to cardiac
When, obtained cardiechema signals are as shown in Fig. 2 the device is alarmed.As can be seen from Figure 2 the three of the first heart sound of cardiac
Cusp T1 is earlier than bicuspid valve M1, and the crowd is more with ventricular septal defect, patent ductus arteriosus, some bicuspid valve or tricuspid valve
Backflow, the symptom such as serious right ventricular outflow obstruction.Fig. 1 is the bicuspid valve M1 and tricuspid valve T1 of the normal first heart sound measured
Location diagram, Fig. 2 for improper first heart sound bicuspid valve M1 and tricuspid valve T1 location diagram.The arrangement achieves
The function of heart abnormality alarm.
Claims (8)
1. a kind of portable cardiovascular disease diagnosis warning device, it is characterised in that including heart sound detector, denoising device,
High-pass filter and signal contrast module, wherein,
The heart sound detector is used to heart sound is detected and gathered, and it, which is communicated, connects denoising device and will can collect
Signal is sent to denoising device;
The denoising device is used to remove external noise, and it communicates connection high-pass filter and can send the signal to high pass filter
Ripple device;
The high-pass filter is used to remove low-frequency noise, and it communicates connection signal contrast module and can send the signal to signal
Contrast module;
The signal contrast module is used to adaptively contrast the cardiechema signals collected.
2. portable cardiovascular disease diagnosis warning device as claimed in claim 1, it is characterised in that also including Lifting Wavelet
Conversion module, it is arranged between high-pass filter and signal contrast module, and is exported for being improved by lifting wavelet transform
The signal to noise ratio of signal, it receives the signal from high-pass filter and sends signal after processing to signal contrast module.
3. portable cardiovascular disease diagnosis warning device as claimed in claim 1 or 2, it is characterised in that also including alarm
Module, it is connected to signal contrast module, and for being alarmed when contrast finds abnormal signal.
4. portable cardiovascular disease diagnosis warning device as claimed in claim 3, it is characterised in that the external noise bag
The noise that ambient noise, industrial frequency noise and skin friction are produced is included, the low-frequency noise is low frequency present in physiological signal
Noise.
5. the portable cardiovascular disease diagnosis warning device as described in claim 1,2 or 4, it is characterised in that the heart sound
The bicuspid valve and tricuspid valve of first heart sound are gathered when detector is acquired to heart sound simultaneously, and is distinguishing the first and second heart sound
On the basis of, distinguish the bicuspid valve and tricuspid valve of first heart sound.
6. portable cardiovascular disease diagnosis warning device as claimed in claim 5, it is characterised in that described heart sound detection
Device is piezo-electric type, high-sensitivity resonance formula or wideband belt.
7. portable cardiovascular disease diagnosis warning device as claimed in claim 6, it is characterised in that the denoising device
Sampling routine of inside attaching most importance to carries out denoising, for the cardiechema signals and the bicuspid valve of first heart sound and tricuspid detected to heart sound detector
Valved signal carries out denoising.
8. portable cardiovascular disease diagnosis warning device as claimed in claim 7, it is characterised in that the denoising device
Hz noise is filtered out using built-in LevKov filtered Softwares.
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