CN104623810A - Synchronous defibrillation system and method for defibrillator-monitor - Google Patents
Synchronous defibrillation system and method for defibrillator-monitor Download PDFInfo
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- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
- A61N1/3904—External heart defibrillators [EHD]
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Abstract
The invention discloses a synchronous defibrillation system and method for a defibrillator-monitor. The method comprises the following steps: controlling an electro-cardio controller to rapidly perform R-wave identification on an obtained digital electro-cardio signal, and setting the level of a first hardware IO (Input/Output) port as a corresponding level when the extreme point of R-waves is identified; controlling a defibrillation controller to detect whether the level of a second hardware IO port is a corresponding level or not, judging whether the electro-cardio controller identifies the extreme point of the R-waves or not, and controlling a defibrillation relay to be started; controlling the defibrillator-monitor to discharge in order to perform high-voltage defibrillation on a patient when the defibrillation relay is started. According to the synchronous defibrillation system and method for the defibrillator-monitor, the level of the first hardware IO port is adopted as a corresponding level by adopting a hardware way to serve as a notification signal, and the defibrillator-monitor is controlled to perform high-voltage defibrillation on the patient, so that delay in synchronous defibrillation can be effectively reduced, the delay time of synchronous defibrillation is effectively controlled, and the risk is lowered.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to the synchronous defibrillation system of a kind of defibrillation monitor and method.
Background technology
Ventricular fibrillation, is called for short ventricular fibrillation or quiver in room, is the most serious a kind of fatal arrhythmia; Up to the present, electric defibrillation is considered to stop the rapidest, the effective mode of ventricular fibrillation.And whether electric defibrillation is according to synchronous with R ripple, be divided into synchronous defibrillation (synchronized defibrillation) and asynchronous defibrillation (non-synchronized defibrillation), synchronous, asynchronous two kinds of defibrillation mode supported by general defibrillator simultaneously.
Due to when synchronous defibrillation, R ripple descending branch or the R ripple that electric current need be released in patient's ECG-QRS Wave started in rear 30ms ventricular absolute refractory period, otherwise may cause ventricular fibrillation; The real-time of therefore carrying out synchronous defibrillation seems particularly important.Current defibrillator when carrying out synchronous defibrillation, the source of synchronous defibrillation electrocardiosignal mainly contain two: one be defibrillation electrocardioelectrode as source of synchronising signal, another one is that monitoring electrocardioelectrode is as source of synchronising signal.
When adopting monitoring electrocardioelectrode as source of synchronising signal, the control of the electric discharge of monitoring electrocardio and defibrillation have employed different processing systems.Owing to have employed different control system, R ripple signal is forwarded, the transmission of signal and reception can cause delay to a certain degree, particularly when the duty ratio of each system is larger, the delay of R ripple signal will strengthen, and synchronous defibrillation require electric current should be discharged into R ripple start after 30ms, therefore, when adopting monitoring electrocardioelectrode as source of synchronising signal, the time delay of synchronous discharge is unstable, and risk is larger.
Summary of the invention
Based on this, be necessary that, for when adopting mornitoring electrode as source of synchronising signal, the time delay of synchronous discharge is unstable, and the problem that risk is larger, provides the synchronous defibrillation system of a kind of defibrillation monitor and method.
The synchronous defibrillation system of a kind of defibrillation monitor, comprising:
Acquisition module, for obtaining the electrocardiosignal of body surface;
Electrocardio pretreatment module, is connected with described acquisition module, for carrying out amplification filtering to the electrocardiosignal of the body surface got, and electrocardiosignal being carried out digitized processing, obtaining digital electrocardiosignal;
Electrocardio controller, is connected with described electrocardio pretreatment module, for carrying out the identification of quick R ripple to the digital electrocardiosignal obtained; Described electrocardio controller comprises the first hardware I/O port, when recognizing the extreme point of R ripple, the level of the first hardware I/O port is set to corresponding level;
Defibrillation controller, comprises the second hardware I/O port; The described second hardware I/O port of described defibrillation controller is connected with the described first hardware I/O port of described electrocardio controller; Described defibrillation controller, for detecting whether the level of the second hardware I/O port is corresponding level, judges whether described electrocardio controller recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay;
Treatment control module, is connected with described defibrillation controller, for when defibrillation relay is opened, controls defibrillation monitor electric discharge and carries out high pressure defibrillation to patient.
Wherein in an embodiment, described electrocardio controller, specifically comprises:
Filter preprocessing unit, for carrying out filter preprocessing to the digital electrocardiosignal obtained, obtains the digital electrocardiosignal X (n) after filter preprocessing;
Difference Calculation unit, for carrying out Difference Calculation to digital electrocardiosignal X (n) m front with it after filter preprocessing digital electrocardiosignal X (n-m), obtains Difference Calculation result;
Threshold decision unit, for judging whether Difference Calculation result is greater than threshold value, thus identifies R ripple;
Extreme value judging unit, for after identification R ripple, by a digital electrocardiosignal amplitude and the magnitude relationship of Contemporary Digital electrocardiosignal amplitude after relatively, judges extreme value, thus the extreme point of identification R ripple.
Wherein in an embodiment, described extreme value judging unit specifically for, when R ripple be inverted and a rear digital electrocardiosignal amplitude be greater than current digital signal amplitude time, Contemporary Digital electrocardiosignal is the minimum point of R ripple; When R ripple is just being put and a rear digital electrocardiosignal amplitude is less than current digital signal amplitude, Contemporary Digital electrocardiosignal is being the maximum point of R ripple;
Wherein, the extreme point of the maximum point of R ripple and the minimum point composition R ripple of R ripple; When the amplitude of digital electrocardiosignal is greater than base value, R ripple is just put; When the amplitude of digital electrocardiosignal is less than base value, R ripple is inverted.
Wherein in an embodiment, described defibrillation controller, specifically comprises:
Detecting unit, for detecting whether the level of the second hardware I/O port is corresponding level;
Break in service unit, for when the level of detection second hardware I/O port is corresponding level, triggered interrupts service routine;
Control unit, for performing in described interrupt service routine, after judging that described electrocardio controller recognizes R ripple, if the electric discharge button controlling defibrillation monitor electric discharge is pressed, controlling defibrillation relay and opening.
Wherein in an embodiment, described defibrillation controller, also comprises:
Postpone detecting unit, for when entering interrupt service routine after, whether be still corresponding level, thus judge whether described electrocardio controller recognizes the extreme point of R ripple if delaying the level that a period of time detects the second hardware I/O port.
Wherein in an embodiment, the priority level of described interrupt service routine is limit priority.
Wherein in an embodiment, also comprise:
Magnetic coupling isolation module, is arranged between described electrocardio controller and described defibrillation controller, for isolating described electrocardio controller and described defibrillation controller.
The synchronous defibrillation method of a kind of defibrillation monitor, comprises step:
Obtain the electrocardiosignal of body surface;
Amplification filtering is carried out to the electrocardiosignal of the body surface got, and electrocardiosignal is carried out digitized processing, obtain digital electrocardiosignal;
Control electrocardio controller and the identification of quick R ripple is carried out to the digital electrocardiosignal obtained, and when recognizing the extreme point of R ripple, the level of the first hardware I/O port is set to corresponding level;
Whether the level that control defibrillation controller detects the second hardware I/O port is corresponding level, judges whether described electrocardio controller recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay;
When defibrillation relay is opened, control defibrillation monitor electric discharge and high pressure defibrillation is carried out to patient.
Wherein in an embodiment, described control electrocardio controller carries out the identification of quick R ripple to the digital electrocardiosignal obtained, and when recognizing the extreme point of R ripple, the level of the first hardware I/O port being set to the step of corresponding level, specifically comprising step:
Filter preprocessing is carried out to the digital electrocardiosignal obtained, obtains the digital electrocardiosignal X (n) after filter preprocessing;
Difference Calculation is carried out to digital electrocardiosignal X (n) m front with it after filter preprocessing digital electrocardiosignal X (n-m), obtains Difference Calculation result;
Judge whether Difference Calculation result is greater than threshold value, thus identify R ripple;
After identification R ripple, by a digital electrocardiosignal amplitude and the magnitude relationship of Contemporary Digital electrocardiosignal amplitude after relatively, judge extreme value, thus the extreme point of identification R ripple.
Wherein in an embodiment, whether the level that described control defibrillation controller detects the second hardware I/O port is corresponding level, judges whether described electrocardio controller recognizes the extreme point of R ripple, and controls the step of defibrillation relay unlatching, specifically comprises:
Whether the level detecting the second hardware I/O port is corresponding level;
When the level of detection second hardware I/O port is corresponding level, triggered interrupts service routine;
After entering interrupt service routine, whether be still corresponding level, thus judge whether described electrocardio controller recognizes the extreme point of R ripple if delaying the level that setting-up time detects the second hardware I/O port;
Perform in described interrupt service routine, after judging that described electrocardio controller recognizes the extreme point of R ripple, if the electric discharge button controlling defibrillation monitor electric discharge is pressed, control defibrillation relay and open.
The synchronous defibrillation system of above-mentioned defibrillation monitor and method, when careful electric controller recognizes the extreme point of R ripple, adopt hardware mode that the level of the first hardware I/O port is set to corresponding level; Whether the level that control defibrillation controller detects the second hardware I/O port is corresponding level, judges whether electrocardio controller recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay.When defibrillation relay is opened, control defibrillation monitor electric discharge and high pressure defibrillation is carried out to patient.Owing to adopting hardware mode, the level of the first hardware I/O port is set to corresponding level, through defibrillation controller, control defibrillation monitor electric discharge and high pressure defibrillation is carried out to patient, effectively can reduce the delay of synchronous defibrillation, the time delay of control synchronization defibrillation effectively, reduce risk.
Accompanying drawing explanation
Fig. 1 is the structure chart of the synchronous defibrillation system of defibrillation monitor in an embodiment;
Fig. 2 is the structure chart of the synchronous defibrillation system of defibrillation monitor in another embodiment;
Fig. 3 is the concrete structure figure of defibrillation monitor synchronous defibrillation system center electric controller in an embodiment;
Fig. 4 is the concrete structure figure of defibrillation controller in the synchronous defibrillation system of defibrillation monitor in an embodiment;
Fig. 5 is the flow chart of the synchronous defibrillation method of defibrillation monitor in an embodiment;
Fig. 6 is the flow chart of the synchronous defibrillation method of defibrillation monitor in another embodiment;
Fig. 7 is the particular flow sheet of a step in the synchronous defibrillation method of defibrillation monitor in an embodiment;
Fig. 8 is the particular flow sheet of another step in the synchronous defibrillation system of defibrillation monitor in an embodiment.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar improvement when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.
The synchronous defibrillation system of a kind of defibrillation monitor, as shown in Figure 1, comprising:
Acquisition module 110, for obtaining the electrocardiosignal of body surface.
The millivolt electrocardiosignal being positioned at body surface is extracted by monitoring electrocardioelectrode.
Electrocardio pretreatment module 120, is connected with acquisition module 110, for carrying out amplification filtering to the electrocardiosignal of the body surface got, and electrocardiosignal being carried out digitized processing, obtaining digital electrocardiosignal.
Wherein, digitized processing adopts analog-digital converter ADC, and analogue signal is converted into digital signal.
Electrocardio controller 140, is connected with electrocardio pretreatment module 120, for carrying out the identification of quick R ripple to the digital electrocardiosignal obtained; Electrocardio controller 140 comprises the first hardware I/O port, when recognizing the extreme point of R ripple, the level of the first hardware I/O port is set to corresponding level.
When identification obtains R ripple, the level of the first hardware I/O port is set to high level.Understandable, when identification obtains R ripple, also the level of the first hardware I/O port can be set to low level.
Defibrillation controller 160, comprises the second hardware I/O port.Second hardware I/O port of defibrillation controller 160 is connected with the first hardware I/O port of electrocardio controller 140, and electrocardio controller 140 is connected with defibrillation controller 160.Defibrillation controller 160, for detecting whether the level of the second hardware I/O port is corresponding level, judges whether electrocardio controller 140 recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay.Control defibrillation relay to open, refer to that the gauge tap controlling defibrillation relay closes.
Directly transmitted the information of the extreme point whether recognizing R ripple by the level of the second hardware I/O port, relative traditional approach, do not need to carry out coding-decoding operation to result data bag, its processing speed is fast.
Treatment control module 180, is connected with defibrillation controller 160, for when defibrillation relay is opened, controls defibrillation monitor electric discharge and carries out high pressure defibrillation to patient.
The synchronous defibrillation system of above-mentioned defibrillation monitor, when careful electric controller 140 recognizes the extreme point of R ripple, adopts hardware mode that the level of the first hardware I/O port is set to corresponding level; Whether the level that defibrillation controller 160 detects the second hardware I/O port is corresponding level, judges whether electrocardio controller 140 recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay.When defibrillation relay is opened, treatment control module 180 controls defibrillation monitor electric discharge and carries out high pressure defibrillation to patient.Owing to adopting hardware mode, the level of the first hardware I/O port is set to corresponding level, through defibrillation controller 160, notice treatment control module 180 controls defibrillation monitor electric discharge and carries out high pressure defibrillation to patient, effectively can reduce the delay of synchronous defibrillation, the time delay of control synchronization defibrillation effectively, reduce risk.
The present invention also provides a kind of defibrillation monitor synchronous defibrillation system, as shown in Figure 2, comprising:
Acquisition module 210, for obtaining the electrocardiosignal of body surface.
The millivolt electrocardiosignal being positioned at body surface is extracted by monitoring electrocardioelectrode.
Electrocardio pretreatment module 220, is connected with acquisition module 210, for carrying out amplification filtering to the electrocardiosignal of the body surface got, and electrocardiosignal being carried out digitized processing, obtaining digital electrocardiosignal.
Wherein, digitized processing adopts analog-digital converter, and analogue signal is converted into digital signal.
Electrocardio controller 240, is connected with electrocardio pretreatment module 220, for carrying out the identification of quick R ripple to the digital electrocardiosignal obtained; Electrocardio controller 240 comprises the first hardware I/O port, when recognizing the extreme point of R ripple, the level of the first hardware I/O port is set to corresponding level.
When identification obtains R ripple, the level of the first hardware I/O port is set to high level.Understandable, when identification obtains R ripple, also the level of the first hardware I/O port can be set to low level.
Defibrillation controller 260, comprises the second hardware I/O port.Second hardware I/O port of defibrillation controller 260 is connected with the first hardware I/O port of electrocardio controller 240, and electrocardio controller 240 is connected with defibrillation controller 260.Defibrillation controller 260, for detecting whether the level of the second hardware I/O port is corresponding level, judges whether electrocardio controller 240 recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay.Control defibrillation relay to open, refer to that the gauge tap controlling defibrillation relay closes.
Magnetic coupling isolation module 250, is arranged between electrocardio controller 240 and defibrillation controller 260, for isolating electrocardio controller 240 and defibrillation controller 260.Electrocardio controller 240 and defibrillation controller 260 are in different earth-return circuits, and signal coupling electrocardio controller 240 sent by magnetic coupling isolation module 250 is to defibrillation controller 260.Avoid there is current flowing between the two, thus allow data to transmit between.
Treatment control module 280, is connected with defibrillation controller 260, for when defibrillation controller 260 judges that electrocardio controller 240 recognizes the extreme point of R ripple, controls defibrillation monitor electric discharge and carries out high pressure defibrillation to patient.
Particularly, treatment control module 280, for when defibrillation relay is opened, controls the electric discharge of defibrillation electrion loop and carries out high pressure defibrillation to patient.
As shown in Figure 3, electrocardio controller 240 adopts difference threshold algorithm to identify R ripple, specifically comprises:
Filter preprocessing unit 241, for carrying out filter preprocessing to the digital electrocardiosignal obtained, obtains the digital electrocardiosignal X (n) after filter preprocessing.
Difference Calculation unit 243, for carrying out Difference Calculation to digital electrocardiosignal X (n) m front with it after filter preprocessing digital electrocardiosignal X (n-m), obtains Difference Calculation result.
Wherein, the value of n is greater than m, m the digital electrocardiosignal that X (n-m) counts forward for X (n).In the present embodiment, m value is 3.The unit interval of every two digital electrocardiosignaies is 2ms.
Threshold decision unit 245, for judging whether Difference Calculation result is greater than threshold value, thus identifies R ripple.
If Difference Calculation result is greater than threshold value, illustrating that electrocardiosignal is in precipitous rising or falling, is R ripple.Otherwise, be not R ripple.
Extreme value judging unit 247, for after identification R ripple, by a digital electrocardiosignal amplitude and the magnitude relationship of Contemporary Digital electrocardiosignal amplitude after relatively, judges extreme value, thus the extreme point of identification R ripple.
For obtaining R ripple more accurately, needing by judging extreme value, identifying the extreme point of R ripple.Extreme value judging unit 247 specifically for: when R ripple be inverted and after a digital electrocardiosignal amplitude be greater than current digital signal amplitude, namely, during X (n+1) > X (n), Contemporary Digital electrocardiosignal is the minimum point of R ripple; When R ripple just putting and after a digital electrocardiosignal amplitude be less than current digital signal amplitude, namely during X (n+1) < X (n), Contemporary Digital electrocardiosignal is the maximum point of R ripple.Otherwise Contemporary Digital electrocardiosignal is not the extreme point of R ripple.The extreme point of the maximum point of R ripple and the minimum point composition R ripple of R ripple.
Wherein, the unit interval of every two digital electrocardiosignaies is 2ms.When the amplitude of digital electrocardiosignal is greater than base value, R ripple is just put; When the amplitude of digital electrocardiosignal is less than base value, R ripple is inverted.Wherein, base value refers to the meansigma methods amplitude of a piece of digital electrocardiosignal.
As shown in Figure 4, defibrillation controller 260, specifically comprises:
Detecting unit 261, for detecting whether the level of the second hardware I/O port is corresponding level.
Break in service unit 263, for when the level of detection second hardware I/O port is corresponding level, triggered interrupts service routine.
Particularly, the priority level of interrupt service routine is limit priority, to reduce time delay to a greater degree.
Postpone detecting unit 265, for when entering interrupt service routine after, whether be still corresponding level, thus judge whether electrocardio controller 240 recognizes the extreme point of R ripple if delaying the level that setting-up time detects the second hardware I/O port.
In the present embodiment, in order to prevent signal disturbing, when delaying level that setting-up time detects the second hardware I/O port still for corresponding level, judge that electrocardio controller 240 recognizes the extreme point of R ripple.So, flase drop is avoided.Wherein, setting-up time can be 1ms, also can be other value, but must be less than the interval of every two digital electrocardiosignaies.
Control unit 267, for performing in interrupt service routine, after judging that electrocardio controller 240 recognizes the extreme point of R ripple, if the electric discharge button controlling defibrillation monitor electric discharge is pressed, controlling defibrillation relay and opening.
The signal transmission whether this electric discharge button is pressed, to defibrillation controller, discharges for controlling defibrillation monitor.As long as electric discharge button is pressed after the extreme point recognizing R ripple, just control defibrillation relay and open.
The synchronous defibrillation system of above-mentioned defibrillation monitor, electrocardio controller 240 adopts the method for differential threshold to identify R ripple, can recognize the extreme point of R ripple fast and exactly.Magnetic coupling isolation module 250, isolation electrocardio controller 240 and defibrillation controller 260.Electrocardio controller 240 and defibrillation controller 260 are in different earth-return circuits, and signal coupling electrocardio controller 240 sent by magnetic coupling isolation module 250 is to defibrillation controller 260.Avoid there is current flowing between the two, thus allow data to transmit between.When the level that defibrillation controller 260 detects the second hardware I/O port is corresponding level, triggered interrupts service routine, reduces time delay; Defibrillation controller 260 have employed the mode of software delay debounce, and whether be still corresponding level, judge whether electrocardio controller 240 recognizes the extreme point of R ripple, thus prevent signal disturbing if delaying the level that setting-up time detects the second hardware I/O port.
The synchronous defibrillation method of a kind of defibrillation monitor, as shown in Figure 5, comprises step:
S110: the electrocardiosignal obtaining body surface.
The millivolt electrocardiosignal being positioned at body surface is extracted by monitoring electrocardioelectrode.
S120: amplification filtering is carried out to the electrocardiosignal of the body surface got, and electrocardiosignal is carried out digitized processing, obtain digital electrocardiosignal.
Wherein, digitized processing adopts analog-digital converter ADC, and analogue signal is converted into digital signal.
S140: control electrocardio controller and the identification of quick R ripple is carried out to the digital electrocardiosignal obtained, and when recognizing the extreme point of R ripple, the level of the first hardware I/O port is set to corresponding level.
When identification obtains R ripple, the level of the first hardware I/O port is set to high level.Understandably, when identification obtains R ripple, also the level of the first hardware I/O port can be set to low level.
S160: whether the level that control defibrillation controller detects the second hardware I/O port is corresponding level, judges whether electrocardio controller recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay.Control defibrillation relay to open, refer to that the gauge tap controlling defibrillation relay closes.
Directly transmitted the information of the extreme point whether recognizing R ripple by the level of the second hardware I/O port, relative traditional approach, do not need to carry out coding-decoding operation to result data bag, its processing speed is fast.
S180: when defibrillation relay is opened, controls defibrillation monitor electric discharge and carries out high pressure defibrillation to patient.
The synchronous defibrillation method of above-mentioned defibrillation monitor, when careful electric controller recognizes the extreme point of R ripple, adopts hardware mode that the level of the first hardware I/O port is set to corresponding level; Whether the level that control defibrillation controller detects the second hardware I/O port is corresponding level, judges whether electrocardio controller recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay.When defibrillation relay is opened, control defibrillation monitor electric discharge and high pressure defibrillation is carried out to patient.Owing to adopting hardware mode, the level of the first hardware I/O port is set to corresponding level, through defibrillation controller, control defibrillation monitor electric discharge and high pressure defibrillation is carried out to patient, effectively can reduce the delay of synchronous defibrillation, the time delay of control synchronization defibrillation effectively, reduce risk.
The present invention also provides a kind of defibrillation monitor synchronous defibrillation method, as shown in Figure 6, comprises step:
S210: the electrocardiosignal obtaining body surface.
The millivolt electrocardiosignal being positioned at body surface is extracted by monitoring electrocardioelectrode.
S220: amplification filtering is carried out to the electrocardiosignal of the body surface got, and electrocardiosignal is carried out digitized processing, obtain digital electrocardiosignal.
Wherein, digitized processing adopts analog-digital converter ADC, and analogue signal is converted into digital signal.
S240: control electrocardio controller and the identification of quick R ripple is carried out to the digital electrocardiosignal obtained, and when recognizing the extreme point of R ripple, the level of the first hardware I/O port is set to corresponding level.
When identification obtains R ripple, the level of the first hardware I/O port is set to high level.Understandable, when identification obtains R ripple, also the level of the first hardware I/O port can be set to low level.
S250: isolation electrocardio controller and defibrillation controller.
S260: whether the level that control defibrillation controller detects the second hardware I/O port is corresponding level, judges whether electrocardio controller recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay.Control defibrillation relay to open, refer to that the gauge tap controlling defibrillation relay closes.
S280: when defibrillation controller judges that electrocardio controller recognizes the extreme point of R ripple, controls defibrillation monitor electric discharge and carries out high pressure defibrillation to patient.
Particularly, when defibrillation relay is opened, control the electric discharge of defibrillation electrion loop and high pressure defibrillation is carried out to patient.
As shown in Figure 7, step S240 adopts difference threshold algorithm to identify R ripple, specifically comprises step:
S241: carry out filter preprocessing to the digital electrocardiosignal obtained, obtains the digital electrocardiosignal X (n) after filter preprocessing.
S243: Difference Calculation is carried out to digital electrocardiosignal X (n) m front with it after filter preprocessing digital electrocardiosignal X (n-m), obtains Difference Calculation result.
Wherein, the value of n is greater than m, m the digital electrocardiosignal that X (n-m) counts forward for X (n).In the present embodiment, m value is 3.The unit interval of every two digital electrocardiosignaies is 2ms.
S245: judge whether Difference Calculation result is greater than threshold value, thus identify R ripple.
If Difference Calculation result is greater than threshold value, illustrating that electrocardiosignal is in precipitous rising or falling, is R ripple.Otherwise, be not R ripple.
S247: after identification R ripple, by a digital electrocardiosignal amplitude and the magnitude relationship of Contemporary Digital electrocardiosignal amplitude after relatively, judges extreme value, thus the extreme point of identification R ripple.
For obtaining R ripple more accurately, needing by judging extreme value, identifying the extreme point of R ripple.When R ripple be inverted and after a digital electrocardiosignal amplitude be greater than current digital signal amplitude, namely during X (n+1) > X (n), Contemporary Digital electrocardiosignal is the minimum point of R ripple; When R ripple just putting and after a digital electrocardiosignal amplitude be less than current digital signal amplitude, namely during X (n+1) < X (n), Contemporary Digital electrocardiosignal is the maximum point of R ripple.Otherwise Contemporary Digital electrocardiosignal is not the extreme point of R ripple.The extreme point of the maximum point of R ripple and the minimum point composition R ripple of R ripple.
Wherein, the unit interval of every two digital electrocardiosignaies is 2ms.When the amplitude of digital electrocardiosignal is greater than base value, R ripple is just put; When the amplitude of digital electrocardiosignal is less than base value, R ripple is inverted.Wherein, base value refers to the meansigma methods amplitude of a piece of digital electrocardiosignal.
As shown in Figure 8, step S260, specifically comprises step:
S261: whether the level detecting the second hardware I/O port is corresponding level.
S263: when the level of detection second hardware I/O port is corresponding level, triggered interrupts service routine.
Particularly, the priority level of interrupt service routine is limit priority, to reduce time delay to a greater degree.
S265: after entering interrupt service routine, whether be still corresponding level, thus judge whether electrocardio controller recognizes the extreme point of R ripple if delaying the level that setting-up time detects the second hardware I/O port.
In the present embodiment, in order to prevent signal disturbing, delay setting-up time detect IO outfan level still for corresponding level time, judge that electrocardio controller recognizes the extreme point of R ripple.So, flase drop is avoided.Wherein, setting-up time can be 1ms, also can be other value, but must be less than the interval of every two digital electrocardiosignaies.
S267: perform in interrupt service routine, after judging that electrocardio controller recognizes the extreme point of R ripple, if the electric discharge button controlling defibrillation monitor electric discharge is pressed, controls defibrillation relay and opens.
This electric discharge button is arranged on defibrillation controller, for controlling defibrillation monitor electric discharge.As long as electric discharge button is pressed after the extreme point recognizing R ripple, just control defibrillation relay and open.
The synchronous defibrillation method of above-mentioned defibrillation monitor, adopts the method for differential threshold to identify R ripple, can fast and identify the extreme point of R ripple exactly.Isolation electrocardio controller and defibrillation controller, prevent electric current from flowing between electrocardio controller and defibrillation controller, affect the level detection of the second hardware I/O port.When to control level that defibrillation controller detects the second hardware I/O port be corresponding level, triggered interrupts service routine, reduces time delay; Have employed the mode of software delay debounce, whether be still corresponding level, thus judge whether electrocardio controller recognizes the extreme point of R ripple if delaying the level that setting-up time detects the second hardware I/O port, thus prevent signal disturbing.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the synchronous defibrillation system of defibrillation monitor, is characterized in that, comprising:
Acquisition module, for obtaining the electrocardiosignal of body surface;
Electrocardio pretreatment module, is connected with described acquisition module, for carrying out amplification filtering to the electrocardiosignal of the body surface got, and electrocardiosignal being carried out digitized processing, obtaining digital electrocardiosignal;
Electrocardio controller, is connected with described electrocardio pretreatment module, for carrying out the identification of quick R ripple to the digital electrocardiosignal obtained; Described electrocardio controller comprises the first hardware I/O port, when recognizing the extreme point of R ripple, the level of the first hardware I/O port is set to corresponding level;
Defibrillation controller, comprises the second hardware I/O port; The described second hardware I/O port of described defibrillation controller is connected with the described first hardware I/O port of described electrocardio controller; Described defibrillation controller, for detecting whether the level of the second hardware I/O port is corresponding level, judges whether described electrocardio controller recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay;
Treatment control module, is connected with described defibrillation controller, for when defibrillation relay is opened, controls defibrillation monitor electric discharge and carries out high pressure defibrillation to patient.
2. the synchronous defibrillation system of defibrillation monitor according to claim 1, is characterized in that, described electrocardio controller, specifically comprises:
Filter preprocessing unit, for carrying out filter preprocessing to the digital electrocardiosignal obtained, obtains the digital electrocardiosignal X (n) after filter preprocessing;
Difference Calculation unit, for carrying out Difference Calculation to digital electrocardiosignal X (n) m front with it after filter preprocessing digital electrocardiosignal X (n-m), obtains Difference Calculation result;
Threshold decision unit, for judging whether Difference Calculation result is greater than threshold value, thus identifies R ripple;
Extreme value judging unit, for after identification R ripple, by a digital electrocardiosignal amplitude and the magnitude relationship of Contemporary Digital electrocardiosignal amplitude after relatively, judges extreme value, thus the extreme point of identification R ripple.
3. the synchronous defibrillation system of defibrillation monitor according to claim 2, it is characterized in that, described extreme value judging unit specifically for, when R ripple be inverted and a rear digital electrocardiosignal amplitude be greater than current digital signal amplitude time, Contemporary Digital electrocardiosignal is the minimum point of R ripple; When R ripple is just being put and a rear digital electrocardiosignal amplitude is less than current digital signal amplitude, Contemporary Digital electrocardiosignal is being the maximum point of R ripple;
Wherein, the extreme point of the maximum point of R ripple and the minimum point composition R ripple of R ripple; When the amplitude of digital electrocardiosignal is greater than base value, R ripple is just put; When the amplitude of digital electrocardiosignal is less than base value, R ripple is inverted.
4. the synchronous defibrillation system of defibrillation monitor according to claim 1, is characterized in that, described defibrillation controller, specifically comprises:
Detecting unit, for detecting whether the level of the second hardware I/O port is corresponding level;
Break in service unit, for when the level of detection second hardware I/O port is corresponding level, triggered interrupts service routine;
Control unit, for performing in described interrupt service routine, after judging that described electrocardio controller recognizes R ripple, if the electric discharge button controlling defibrillation monitor electric discharge is pressed, controlling defibrillation relay and opening.
5. the synchronous defibrillation system of defibrillation monitor according to claim 4, is characterized in that, described defibrillation controller, also comprises:
Postpone detecting unit, for when entering interrupt service routine after, whether be still corresponding level, thus judge whether described electrocardio controller recognizes the extreme point of R ripple if delaying the level that a period of time detects the second hardware I/O port.
6. the synchronous defibrillation system of defibrillation monitor according to claim 4, is characterized in that, the priority level of described interrupt service routine is limit priority.
7. the synchronous defibrillation system of the defibrillation monitor according to claim 1-6 any one, is characterized in that, also comprise:
Magnetic coupling isolation module, is arranged between described electrocardio controller and described defibrillation controller, for isolating described electrocardio controller and described defibrillation controller.
8. the synchronous defibrillation method of defibrillation monitor, is characterized in that, comprise step:
Obtain the electrocardiosignal of body surface;
Amplification filtering is carried out to the electrocardiosignal of the body surface got, and electrocardiosignal is carried out digitized processing, obtain digital electrocardiosignal;
Control electrocardio controller and the identification of quick R ripple is carried out to the digital electrocardiosignal obtained, and when recognizing the extreme point of R ripple, the level of the first hardware I/O port is set to corresponding level;
Whether the level that control defibrillation controller detects the second hardware I/O port is corresponding level, judges whether described electrocardio controller recognizes the extreme point of R ripple, and controls the unlatching of defibrillation relay;
After defibrillation relay is opened, control defibrillation monitor electric discharge and high pressure defibrillation is carried out to patient.
9. the synchronous defibrillation method of defibrillation monitor according to claim 8, it is characterized in that, described control electrocardio controller carries out the identification of quick R ripple to the digital electrocardiosignal obtained, and when recognizing the extreme point of R ripple, the level of the first hardware I/O port is set to the step of corresponding level, specifically comprises step:
Filter preprocessing is carried out to the digital electrocardiosignal obtained, obtains the digital electrocardiosignal X (n) after filter preprocessing;
Difference Calculation is carried out to digital electrocardiosignal X (n) m front with it after filter preprocessing digital electrocardiosignal X (n-m), obtains Difference Calculation result;
Judge whether Difference Calculation result is greater than threshold value, thus identify R ripple;
After identification R ripple, by a digital electrocardiosignal amplitude and the magnitude relationship of Contemporary Digital electrocardiosignal amplitude after relatively, judge extreme value, thus the extreme point of identification R ripple.
10. the synchronous defibrillation method of defibrillation monitor according to claim 8, it is characterized in that, whether the level that described control defibrillation controller detects the second hardware I/O port is corresponding level, judge whether described electrocardio controller recognizes the extreme point of R ripple, and control the step of defibrillation relay unlatching, specifically comprise:
Whether the level detecting the second hardware I/O port is corresponding level;
When the level of detection second hardware I/O port is corresponding level, triggered interrupts service routine;
After entering interrupt service routine, whether be still corresponding level, thus judge whether described electrocardio controller recognizes the extreme point of R ripple if delaying the level that setting-up time detects the second hardware I/O port;
Perform in described interrupt service routine, after judging that described electrocardio controller recognizes the extreme point of R ripple, if the electric discharge button controlling defibrillation monitor electric discharge is pressed, control defibrillation relay and open.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510057184.XA CN104623810A (en) | 2015-02-02 | 2015-02-02 | Synchronous defibrillation system and method for defibrillator-monitor |
| PCT/CN2015/099790 WO2016124054A1 (en) | 2015-02-02 | 2015-12-30 | System and method for synchronized defibrillation of defibrillator monitor |
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| CN201510057184.XA CN104623810A (en) | 2015-02-02 | 2015-02-02 | Synchronous defibrillation system and method for defibrillator-monitor |
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| WO (1) | WO2016124054A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016124054A1 (en) * | 2015-02-02 | 2016-08-11 | 深圳市科曼医疗设备有限公司 | System and method for synchronized defibrillation of defibrillator monitor |
| CN106669038A (en) * | 2016-11-21 | 2017-05-17 | 安徽华米信息科技有限公司 | Wearable defibrillator, defibrillation method thereof and wearable device |
| CN107029355A (en) * | 2015-12-04 | 2017-08-11 | 西艾丰控股公司（开曼群岛） | Wearable cardioverter-defibrillators with isolation patient parameter element（WCD）System |
| CN109922861A (en) * | 2016-11-04 | 2019-06-21 | 日本来富恩株式会社 | Intracardiac defibrillation catheter system |
| CN114533080A (en) * | 2020-11-26 | 2022-05-27 | 深圳市科瑞康实业有限公司 | Method and device for recognizing flutter wave of electrocardiosignal data |
| CN115399785A (en) * | 2022-08-30 | 2022-11-29 | 洲瓴(上海)医疗器械有限公司 | R wave identification system of electrocardiosignal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043620A (en) * | 1988-12-24 | 1990-07-11 | 沈仲元 | Portable intelligent cardioelectric monitor |
| CN201147314Y (en) * | 2007-10-11 | 2008-11-12 | 复旦大学 | Electrocardiogram R wave fast detecting electric appliance for cardiac defibrillator |
| CN102894970A (en) * | 2012-10-22 | 2013-01-30 | 深圳市邦健电子有限公司 | R wave detection circuit, method and defibrillator |
| US20140121552A1 (en) * | 2012-10-30 | 2014-05-01 | Olympus Corporation | Fibrillation detector and defibrillator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002009810A2 (en) * | 2000-07-27 | 2002-02-07 | Medtronic, Inc. | Algorithm for synchronization of atrial cardioversion shock |
| US6584350B2 (en) * | 2001-04-06 | 2003-06-24 | Cardiac Pacemakers, Inc. | Apparatus and method for R-wave detection with dual dynamic sensitivities |
| CN102885621B (en) * | 2012-10-19 | 2015-04-22 | 深圳邦健生物医疗设备股份有限公司 | Signal processing method and circuit for R-wave detection and defibrillator |
| CN103933665A (en) * | 2013-12-10 | 2014-07-23 | 电子科技大学 | Heart defibrillation method capable of automatically generating and controlling discharge mode and device thereof |
| CN104623810A (en) * | 2015-02-02 | 2015-05-20 | 深圳市科曼医疗设备有限公司 | Synchronous defibrillation system and method for defibrillator-monitor |
-
2015
- 2015-02-02 CN CN201510057184.XA patent/CN104623810A/en active Pending
- 2015-12-30 WO PCT/CN2015/099790 patent/WO2016124054A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043620A (en) * | 1988-12-24 | 1990-07-11 | 沈仲元 | Portable intelligent cardioelectric monitor |
| CN201147314Y (en) * | 2007-10-11 | 2008-11-12 | 复旦大学 | Electrocardiogram R wave fast detecting electric appliance for cardiac defibrillator |
| CN102894970A (en) * | 2012-10-22 | 2013-01-30 | 深圳市邦健电子有限公司 | R wave detection circuit, method and defibrillator |
| US20140121552A1 (en) * | 2012-10-30 | 2014-05-01 | Olympus Corporation | Fibrillation detector and defibrillator |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016124054A1 (en) * | 2015-02-02 | 2016-08-11 | 深圳市科曼医疗设备有限公司 | System and method for synchronized defibrillation of defibrillator monitor |
| CN107029355A (en) * | 2015-12-04 | 2017-08-11 | 西艾丰控股公司（开曼群岛） | Wearable cardioverter-defibrillators with isolation patient parameter element（WCD）System |
| CN107029355B (en) * | 2015-12-04 | 2021-06-01 | 西艾丰控股公司（开曼群岛） | Wearable Cardioverter Defibrillator (WCD) system with isolated patient parameter elements |
| CN109922861A (en) * | 2016-11-04 | 2019-06-21 | 日本来富恩株式会社 | Intracardiac defibrillation catheter system |
| CN109922861B (en) * | 2016-11-04 | 2023-07-14 | 日本来富恩株式会社 | Intracardiac defibrillation catheter system |
| CN106669038A (en) * | 2016-11-21 | 2017-05-17 | 安徽华米信息科技有限公司 | Wearable defibrillator, defibrillation method thereof and wearable device |
| CN106669038B (en) * | 2016-11-21 | 2019-03-15 | 安徽华米信息科技有限公司 | Wearable defibrillator and its defibrillation method, wearable device |
| CN114533080A (en) * | 2020-11-26 | 2022-05-27 | 深圳市科瑞康实业有限公司 | Method and device for recognizing flutter wave of electrocardiosignal data |
| CN114533080B (en) * | 2020-11-26 | 2023-10-13 | 深圳市科瑞康实业有限公司 | Method and device for identifying vibration wave of electrocardiosignal data |
| CN115399785A (en) * | 2022-08-30 | 2022-11-29 | 洲瓴(上海)医疗器械有限公司 | R wave identification system of electrocardiosignal |
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|---|---|
| WO2016124054A1 (en) | 2016-08-11 |
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