CN102961131B - Automatic detection and transformation method for loose of electrocardiograph limb electrodes - Google Patents
Automatic detection and transformation method for loose of electrocardiograph limb electrodes Download PDFInfo
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- CN102961131B CN102961131B CN201210487166.1A CN201210487166A CN102961131B CN 102961131 B CN102961131 B CN 102961131B CN 201210487166 A CN201210487166 A CN 201210487166A CN 102961131 B CN102961131 B CN 102961131B
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Abstract
The invention discloses an automatic detection and transformation method for loose of electrocardiograph limb electrodes. When one limb electrode or two limb electrodes loose (s), the loosed electrodes need not to be fixed again; the electric potential at a Wilson center end can be automatically adjusted by a system, and an obtained precordial lead electrocardiogram is still normal, so that under the condition, most parts of recorded electrocardiogram lead signals are ensured to be still available. The automatic detection and transformation method for loose of the electrocardiograph limb electrodes has the characteristic that the signals are recorded stably in a long time process; and through automatic adjustment on the electric potential of the Wilson center, the most parts of recorded electrocardiogram lead signals are ensured to be stable and effective in a long-time recording process under the condition that parts of limb electrodes loose, thereby laying a good foundation for subsequent electrocardiogram analysis and processing.
Description
Technical field
The invention belongs to Medical Instruments technical field, particularly in a kind of electrocardiographic recording process, electrocardio limb electrode comes off and automatically detects and conversion method.
Background technology
Holter system is for recording and analyze the electrocardiogram of patient under orthobiosis state; along with the develop rapidly of electronic technology and memory technology; the electrocardiogram that Holter recorder has been led 24 hours by continuous record patient 2～3 develops into continuous record patient 12 electrocardiogram of 24～72 hours that leads; in electrocardiographic recorder process due to reasons such as human motion and the reductions of electrode viscosity; usually there will be partial electrode to come off, cause the ECG signal quality of record obviously to reduce.Particularly lead under logging mode 12,6 chest leads be the Wilson's central potential that forms taking limb electrode as reference signal, cause Wilson's center-side potential shift if there is any limb electrode to come off, all can cause 6 chest leads to record unsuccessfully.Most Holter system adopts alarm mode, and in the time that electrode comes off, system can point out patient again to wear the electrode that comes off, but has had a strong impact on patient's daily life system.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of electrocardio limb electrode to come off detects and conversion method automatically, in the time that one or two limb electrode comes off, do not need to retighten the electrode that comes off, system can be adjusted the current potential of Wilson's center-side automatically, it is still normal that the breast obtaining is led electrocardiogram, ensures in the case, and most of cardiac diagnosis lead signal of record remains available.
In order to achieve the above object, technical scheme of the present invention is:
A kind of electrocardio limb electrode comes off and automatically detects and conversion method, comprises the following steps:
Step 1, in recording process, the normal amplitude of each lead signals is no more than 5mV, after electrode comes off, lead signals there will be extremely, amplitude obviously increases, first system detects lead signals V5 signal amplitude in 5s and exceeds the shared ratio of 5mV, comes off if can define electrode after this ratio exceedes 50%;
Step 2, detection lead signals V1 signal amplitude in 5s exceed the shared ratio of 5mv, if lead signals V1 is normal, can judge that limb electrode does not come off, and now come off for lead signals V5 electrode; If lead signals V1 is abnormal, detection lead signals I I, lead signals I II signal amplitude in 5s exceed the shared ratio of 5mV, if lead signals I I, lead signals I II are simultaneously normal, can judge that limb electrode does not come off, now come off for lead signals V1, lead signals V5 simultaneously; If lead signals I I, lead signals I II signal have one at least extremely, can define limb electrode and come off; Whether following table is normal according to each lead signals, determines the limb conductive electrode that may come off, and wherein Y represents that lead signals is normal, and N represents that lead signals is abnormal;
Step 3, when being in upper table when state 1, isolated electrode R, automatically adjusts electrode L and electrode F and forms Wilson's center-side, if lead signals V5, lead signals V1 recover normal in the 10s after adjustment, adjusts successfully; In the time being state 2, isolated electrode L, automatically adjusts electrode R and electrode F and forms Wilson's center-side, if lead signals V5, lead signals V1 lead signals recover normal in the 10s after adjustment, adjusts successfully;
Step 4, in the time being state 3, need to carry out substep attempt adjust, be first assumed to be electrode F and come off, isolated electrode F, automatically adjust electrode L and electrode R and form Wilson's center, if lead signals V5, lead signals V1 lead signals recover normal in the 10s after adjustment, adjust successfully; If above-mentioned adjustment failure, isolated electrode L and electrode R, automatically adjusts electrode F and forms Wilson's center, if lead signals V5, lead signals V1 recover normal in the 10s after adjustment, adjusts successfully; If above-mentioned adjustment is failure all, think that electrode L, electrode R and electrode F come off simultaneously or human body comes off with reference to ground electrode, now system is reported to the police.
Effect of the present invention is: the limb electrode of realizing with the present invention comes off and automatically detects and conversion method has the stable feature of signal record in long-time process, by the automatic adjustment to Wilson's central potential, can ensure in non-volatile recording process, in the situation that generation part limb electrode comes off, most of lead signals that still can ensure record is effectively stable, thereby lays good basis for follow-up ecg analysis processing.
Detailed description of the invention
Below structural principle of the present invention and operation principle are described in detail.
A kind of electrocardio limb electrode comes off and automatically detects and conversion method, comprises the following steps:
Step 1, in recording process, the normal amplitude of each lead signals is no more than 5mV, after electrode comes off, lead signals there will be extremely, amplitude obviously increases, first system detects lead signals V5 signal amplitude in 5s and exceeds the shared ratio of 5mV, comes off if can define electrode after this ratio exceedes 50%;
Step 2, detection lead signals V1 signal amplitude in 5s exceed the shared ratio of 5mv, if lead signals V1 is normal, can judge that limb electrode does not come off, and now come off for lead signals V5 electrode; If lead signals V1 is abnormal, detection lead signals I I, lead signals I II signal amplitude in 5s exceed the shared ratio of 5mV, if lead signals I I, lead signals I II are simultaneously normal, can judge that limb electrode does not come off, now come off for lead signals V1, lead signals V5 simultaneously; If lead signals I I, lead signals I II signal have one at least extremely, can define limb electrode and come off; Whether following table is normal according to each lead signals, determines the limb conductive electrode that may come off, and wherein Y represents that lead signals is normal, and N represents that lead signals is abnormal;
Step 3, when being in upper table when state 1, isolated electrode R, automatically adjusts electrode L and electrode F and forms Wilson's center-side, if lead signals V5, lead signals V1 recover normal in the 10s after adjustment, adjusts successfully; In the time being state 2, isolated electrode L, automatically adjusts electrode R and electrode F and forms Wilson's center-side, if lead signals V5, lead signals V1 lead signals recover normal in the 10s after adjustment, adjusts successfully;
Step 4, in the time being state 3, need to carry out substep attempt adjust, be first assumed to be electrode F and come off, isolated electrode F, automatically adjust electrode L and electrode R and form Wilson's center, if lead signals V5, lead signals V1 lead signals recover normal in the 10s after adjustment, adjust successfully; If above-mentioned adjustment failure, isolated electrode L and electrode R, automatically adjusts electrode F and forms Wilson's center, if lead signals V5, lead signals V1 recover normal in the 10s after adjustment, adjusts successfully; If above-mentioned adjustment is failure all, think that electrode L, electrode R and electrode F come off simultaneously or human body comes off with reference to ground electrode, now system is reported to the police.
Embodiment mono-
The exploitation a kind of 12 Holter system of leading, recorder amplifies 200 times to electrocardiosignal.In recording process, lead signals V5, V1, II, III lead signals are detected in real time, exceed 2.5s if lead signals V5 and V1 lead signals amplitude in 5s exceed the cumulative time of 1000mV, carry out limb electrode and come off and automatically detect and conversion.Now, in the time that lead signals V5, V1, II, III combinations of states are state 1, isolated electrode R, automatically adjusts electrode L and F and forms Wilson's center-side, if lead signals V5, V1 recover normal in the 10s after adjustment, adjusts successfully; In the time being state 2, isolated electrode L, automatically adjusts electrode R and F and forms Wilson's center-side, if lead signals V5, V1 lead signals recover normal in the 10s after adjustment, adjusts successfully; In the time being state 3, first isolate F electrode, automatically adjust electrode L and R and form Wilson's center, if lead signals V5, V1 recover normal in the 10s after adjustment, adjust successfully; In the time being state 3, if above-mentioned adjustment failure, isolated electrode L and R electrode, automatically adjusts electrode F and forms Wilson's center, if lead signals V5, V1 recover normal in the 10s after adjustment, adjusts successfully.The present invention is except can be used for Holter system, also can be used for the occasion to the long-time monitoring of electrocardiogram such as multiparameter bedside monitoring.
Claims (1)
1. electrocardio limb electrode comes off and automatically detects and a conversion method, it is characterized in that, comprises the following steps:
Step 1, in recording process, the normal amplitude of each lead signals is no more than 5mV, after electrode comes off, lead signals there will be extremely, amplitude obviously increases, first system detects lead signals V5 signal amplitude in 5s and exceeds the shared ratio of 5mV, comes off if can define electrode after this ratio exceedes 50%;
Step 2, detection lead signals V1 signal amplitude in 5s exceed the shared ratio of 5mv, if lead signals V1 is normal, can judge that limb electrode does not come off, and now come off for lead signals V5 electrode; If lead signals V1 is abnormal, detection lead signals I I, lead signals I II signal amplitude in 5s exceed the shared ratio of 5mV, if lead signals I I, lead signals I II are simultaneously normal, can judge that limb electrode does not come off, now come off for lead signals V1, lead signals V5 simultaneously; If lead signals I I, lead signals I II signal have one at least extremely, can define limb electrode and come off; Whether following table is normal according to each lead signals, determines the limb conductive electrode that may come off, and wherein Y represents that lead signals is normal, and N represents that lead signals is abnormal;
Step 3, when being in upper table when state 1, isolated electrode R, automatically adjusts electrode L and electrode F and forms Wilson's center-side, if lead signals V5, lead signals V1 recover normal in the 10s after adjustment, adjusts successfully; In the time being state 2, isolated electrode L, automatically adjusts electrode R and electrode F and forms Wilson's center-side, if lead signals V5, lead signals V1 lead signals recover normal in the 10s after adjustment, adjusts successfully;
Step 4, in the time being state 3, need to carry out substep attempt adjust, be first assumed to be electrode F and come off, isolated electrode F, automatically adjust electrode L and electrode R and form Wilson's center, if lead signals V5, lead signals V1 lead signals recover normal in the 10s after adjustment, adjust successfully; If above-mentioned adjustment failure, isolated electrode L and electrode R, automatically adjusts electrode F and forms Wilson's center, if lead signals V5, lead signals V1 recover normal in the 10s after adjustment, adjusts successfully; If above-mentioned adjustment is failure all, think that electrode L, electrode R and electrode F come off simultaneously or human body comes off with reference to ground electrode, now system is reported to the police.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103622690B (en) * | 2013-11-14 | 2015-09-23 | 成都博约创信科技有限责任公司 | Based on the electrocardiogram monitoring system of ZigBee technology |
| CN103800004A (en) * | 2013-11-19 | 2014-05-21 | 邱磊 | Automatic detection method used for wrong placement of electrocardio-electrodes and based on kernel function classification algorithm |
| CN103876727B (en) * | 2014-02-27 | 2017-04-05 | 深圳市理邦精密仪器股份有限公司 | The method and apparatus that a kind of cardiac diagnosis lead mode of operation automatically switches |
| CN103908244B (en) * | 2014-04-03 | 2016-01-06 | 深圳市理邦精密仪器股份有限公司 | A kind of method and apparatus that cardiac diagnosis lead misconnection is judged |
| CN104188652B (en) * | 2014-09-09 | 2016-08-24 | 广东工业大学 | Electrocardiographic quality of data real-time control method and system thereof |
| CN104783783B (en) * | 2015-04-23 | 2017-05-17 | 康泰医学系统（秦皇岛）股份有限公司 | Method for handheld electrocardio detector to automatically start electrocardiogram recording |
| CN107485393B (en) * | 2017-09-18 | 2020-04-21 | 山东正心医疗科技有限公司 | Electrode falling monitoring method of surface mount type electrocardiograph |
| CN109975878B (en) * | 2017-12-27 | 2020-11-24 | 四川锦江电子科技有限公司 | Device and method for detecting falling of surface excitation electrode plate of three-dimensional mapping system |
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