CN201912078U - Electrocardiogram machine for synchronously outputting electrocardio and electrocardial vector - Google Patents
Electrocardiogram machine for synchronously outputting electrocardio and electrocardial vector Download PDFInfo
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- CN201912078U CN201912078U CN 201120009841 CN201120009841U CN201912078U CN 201912078 U CN201912078 U CN 201912078U CN 201120009841 CN201120009841 CN 201120009841 CN 201120009841 U CN201120009841 U CN 201120009841U CN 201912078 U CN201912078 U CN 201912078U
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Abstract
The utility model discloses an electrocardiogram machine for synchronously outputting electrocardio and electrocardial vector, which comprises a Wilson twelve-lead-mode electrode, an amplifying, filtering and protecting isolation circuit, a digital-to-analog conversion circuit and an embedded control circuit, wherein the electric signal acquired by the Wilson twelve-lead-mode electrode is input into the amplifying, filtering and protecting isolation circuit, the signal output end of the amplifying, filtering and protecting isolation circuit is connected with the digital-to-analog conversion circuit, and the signal output end of the digital-to-analog conversion circuit is connected with the embedded control circuit. The electrocardiogram machine for synchronously outputting electrocardio and electrocardial vector adopts the twelve-lead-mode of the conventional Wilson central electric end to input the human body electric signal acquired by the electrode into the amplifying, filtering and protecting isolation circuit, and the lead mode is simple and uses less electrodes; the electrocardio signal and the electrocardial vector signal are synchronously detected without switching, so the cost is lowered, the operation of clinical application is also simple and convenient, and meanwhile, the operation professional requirements and operation fault of operators are reduced.
Description
Technical field
This utility model relates to a kind of electrocardiograph, is specifically related to a kind of electrocardiograph of realizing exporting synchronously electrocardio and electrocardial vector.
Background technology
Electrocardiogram refers to heart in each cardiac cycle, and is excited in succession by pacemaker, atrium, ventricle, is accompanied by the bioelectric variation of electrocardiogram, draws the figure (being called for short ECG) of the potential change of various ways from body surface by electrocardiograph.Electrocardiogram is the objective indicator of generation, propagation and the recovery process of heart excitement.Vectorcardiogram mainly is to be different with size in each moment according to the direction of heart electricity excition, is the exciting a kind of special examined in spatial direction and size of electricity that produces the record heart each moment.Can write down out the stereo-picture of cardiac motion electric current more truly, can be used to illustrate principle and the explanation electrocardiographic wave that electrocardiogram produces.
Conventional vectorcardiogram is to adopt the Frank quadrature alignment X in the system that leads that leads, Y, three orthogonal leads of Z are checked electrocardiogram, it is with the projection electrocardiogram of vectorcardiographic loop on human body X axle, Y-axis and Z axle, carry out vector operation, obtain spatial vectorcardiographic loop.The electrocardiogram specificity of conventional 12 lead is stronger, and the Frank vectorcardiogram sensitivity of leading is higher.It can provide many additional ecg informations, and it is more flexible aspect the phase relation to lead in expression, and vectorelectrocardiographic criteria has been explained the profile of each vector loop, has also disclosed the implication of amplitude and persistent period.Therefore the two is combined and effectively to improve the accuracy and the effectiveness of Clinical detection.
But the two the system of leading of electrocardiogram and vectorcardiogram is different, and conventional twelve-lead electrocardiogram and the Frank electrocardial vector that leads is combined, and must use electrocardiograph and cardiovectograph respectively, and changing simultaneously leads has brought a lot of inconvenience to clinical.The present simultaneously synchronous electrocardiosignal figure machine that uses, the main electrocardial vector that the electrocardiogram of conventional 12 lead and Frank are led combine demonstration electrocardiogram and the vectorcardiogram synchronously of adopting, this checkout gear, though can realize that the signal that detects is synchronous, dependency, the mode of leading complexity, complicated, inconvenient operation, and cost an arm and a leg, these have all hindered vectorcardiogram in clinical being extensive use of.
The utility model content
At weak point of the prior art, this utility model provides a kind of and has led simply, and easy to operate, the electrocardiograph of electrocardio and electrocardial vector is exported in the realization that economic benefit is high synchronously.
A kind of electrocardiograph of realizing exporting synchronously electrocardio and electrocardial vector that this utility model provides comprises the protection of electrode, amplification filtering buffer circuit, D/A converting circuit and the embedded control system of Wilson 12 lead mode; The signal of telecommunication input amplification filtering protection buffer circuit that the electrode of described Wilson 12 lead mode is gathered, the signal output part linking number analog conversion circuit of amplification filtering protection buffer circuit, the signal output part of D/A converting circuit connects embedded control system.
Further, comprise LCD display and printer, described embedded control system is connected with LCD display by the VGA interface, and described embedded control system is connected with printer by the serial port drive circuit.
The beneficial effects of the utility model: this utility model adopts the 12 lead of conventional Wilson central electric terminal that the signal of telecommunication input amplification filtering that electrode obtains human body is protected buffer circuit, and the mode of leading is simple, and electrode is few; Synchronous detecting electrocardiosignal and electrocardial vector signal need not to switch, and have promptly reduced cost, and simple, convenient in clinical practice, have reduced the professional requirement of operator's operation and the error of operation simultaneously.
Description of drawings
Fig. 1 is the structural representation of electrocardiograph;
Fig. 2 is the electrocardio-data collection flow chart of derivation back projection method.
The specific embodiment
Below in conjunction with the drawings and specific embodiments this utility model is done explanation in further detail.
Fig. 1 is the structural representation of electrocardiograph, as shown in the figure.A kind of electrocardiograph of realizing exporting synchronously electrocardio and electrocardial vector comprises electrode, amplification filtering protection buffer circuit, D/A converting circuit, embedded control system, LCD display and the printer of Wilson 12 lead mode.The signal of telecommunication input amplification filtering protection buffer circuit that the electrode of Wilson 12 lead mode is gathered; the signal output part linking number analog conversion circuit of amplification filtering protection buffer circuit; the signal output part of D/A converting circuit connects embedded control system; embedded control system is connected with LCD display by the VGA interface, and embedded control system is connected with printer by the serial port drive circuit.
When using this realization to export the electrocardiograph of electrocardio and electrocardial vector synchronously:
(1), electrode (electrode is the metal-plated silver electrode) is adsorbed on the surface of human body to obtain the signal of telecommunication of human body, to obtain body electrical signals input ecg signal harvester (as shown in Figure 2) by the electrode of Wilson 12 lead mode, electrocardiogram signal acquisition device output 12 lead electrocardiosignal figure I, II, III, V
R, V
F, V
L, V
Breast 1, V
Breast 2, V
Breast 3, V
Breast 4, V
Breast 5And V
Breast 6, wherein, I is an electrocardio standard I lead signals, II is an electrocardio standard II lead signals, V
R, V
FAnd V
LBe unipolar extremity lead signal, V
Breast 1～breast 6Be electrocardio unipolar chest lead signal; Will be by the frank body electrical signals input electrocardial vector harvester that the electrode of mode obtains that leads, the electrocardial vector value on the output of electrocardial vector harvester X, Y, the Z direction is respectively V
X, V
Y, V
ZBecause the arithmetic speed of computer is very high, be input to electrocardiosignal and the electrocardial vector signal handled in the computer and can think that recording is the signal of synchronization on human body, thereby obtain a large amount of electrocardiosignaies one to one and electrocardial vector signal data, data base of all data construct of obtaining.
(2), above-mentioned parameter is brought into following multiple linear regression mathematical model:
In the following formula,
Be n observed data battle array of P dependent variable,
Be the matrix of the Known designs of m-1 independent variable, and r (X)=m,
Be the regression coefficient matrix of the unknown,
Be the random error matrix,
Be the variance of system, I is a unit matrix;
The MATLAB software of utilization Math Works company is with 1.1) data of database of described foundation carries out the calculating formula of above-mentioned multiple linear regression mathematical model, obtains the multiple linear regression relational matrix of vectorcardiogram electrocardiogram:
Obtain back projection's matrix:
In above-mentioned:
The regression matrix of expression from the ECG signal to the electrocardial vector,
Expression and the ECG signal of electrocardial vector at synchronization.
(3) body electrical signals that will obtain by the electrode of Wilson 12 lead mode is input to amplification filtering protection buffer circuit and carries out signal of telecommunication filter amplifying processing; the filtering amplifying signal is input in the embedded control system after D/A converting circuit is converted into digital signal and further handles, the defeated Electrocardiographic output of final realization.
(4) by embedded control system the electrocardiogram of the final output that realizes in (3) being carried out following back projection simultaneously calculates:
In the present embodiment, the amplification filtering holding circuit mainly is the safety of protection Acquisition Circuit, the destruction that prevents counter electrode and electronic device; The interference of filtered signal and signal is amplified in certain scope to adapt to the processing of D/A converting circuit.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although this utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (2)
1. an electrocardiograph of realizing exporting synchronously electrocardio and electrocardial vector is characterized in that: the electrode, amplification filtering protection buffer circuit, D/A converting circuit and the embedded control system that comprise Wilson 12 lead mode; The signal of telecommunication input amplification filtering protection buffer circuit that the electrode of described Wilson 12 lead mode is gathered, the signal output part linking number analog conversion circuit of amplification filtering protection buffer circuit, the signal output part of D/A converting circuit connects embedded control system.
2. the electrocardiograph of electrocardio and electrocardial vector is exported in realization according to claim 1 synchronously, it is characterized in that: comprise LCD display and printer, described embedded control system is connected with LCD display by the VGA interface, and described embedded control system is connected with printer by the serial port drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120009841 CN201912078U (en) | 2011-01-13 | 2011-01-13 | Electrocardiogram machine for synchronously outputting electrocardio and electrocardial vector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120009841 CN201912078U (en) | 2011-01-13 | 2011-01-13 | Electrocardiogram machine for synchronously outputting electrocardio and electrocardial vector |
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| CN201912078U true CN201912078U (en) | 2011-08-03 |
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| CN 201120009841 Expired - Lifetime CN201912078U (en) | 2011-01-13 | 2011-01-13 | Electrocardiogram machine for synchronously outputting electrocardio and electrocardial vector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102028458A (en) * | 2011-01-13 | 2011-04-27 | 深圳市科曼医疗设备有限公司 | Method for synchronously outputting electrocardiogram and vectorcardiogram |
| CN109480827A (en) * | 2018-12-18 | 2019-03-19 | 武汉中旗生物医疗电子有限公司 | Vectorcardigram classification method and device |
| CN111543979A (en) * | 2020-05-13 | 2020-08-18 | 许祥林 | Method for outputting vector cardiogram through conventional leads |
-
2011
- 2011-01-13 CN CN 201120009841 patent/CN201912078U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102028458A (en) * | 2011-01-13 | 2011-04-27 | 深圳市科曼医疗设备有限公司 | Method for synchronously outputting electrocardiogram and vectorcardiogram |
| CN102028458B (en) * | 2011-01-13 | 2012-05-23 | 深圳市科曼医疗设备有限公司 | Method for synchronously outputting electrocardiogram and vectorcardiogram |
| CN109480827A (en) * | 2018-12-18 | 2019-03-19 | 武汉中旗生物医疗电子有限公司 | Vectorcardigram classification method and device |
| CN109480827B (en) * | 2018-12-18 | 2021-04-16 | 武汉中旗生物医疗电子有限公司 | Vector electrocardiogram classification method and device |
| CN111543979A (en) * | 2020-05-13 | 2020-08-18 | 许祥林 | Method for outputting vector cardiogram through conventional leads |
| CN111543979B (en) * | 2020-05-13 | 2024-02-06 | 许祥林 | Method for outputting electrocardiographic vector diagram by conventional leads |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
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| CX01 | Expiry of patent term |