CN109589498A - Cardiac pacing system - Google Patents
Cardiac pacing system Download PDFInfo
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- CN109589498A CN109589498A CN201811472114.0A CN201811472114A CN109589498A CN 109589498 A CN109589498 A CN 109589498A CN 201811472114 A CN201811472114 A CN 201811472114A CN 109589498 A CN109589498 A CN 109589498A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
- A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
Abstract
The present invention provides a kind of cardiac pacing system, and the cardiac pacing system includes sensing module and control module；Atrial event is lacked between current ventricular event and preceding ventricular event when sensing module senses；Alternatively, AV interphase is except the first critical field；Or VV interphase is less than the second standard interphase；Then control module determines that current ventricular event is ventricular premature beat event.So, it is possible in detail, systematically realize identification to ventricular premature beat event；And it is capable of providing detailed diagnostic message, to help medical staff to be better understood by the state of an illness of patient and make rational therapy scheme.In addition, cardiac pacing system provided by the invention can be used for the assessment of all kinds of cardiac rhythms, diagnosing and treating etc., the improvement and innovation of more flexible, the simple realization therapeutic scheme of equipment can be made.
Description
Technical field
The present invention relates to medical instruments field, in particular to a kind of cardiac pacing system.
Background technique
Pacemaker (cardiac pacemaker) is that one kind is implanted in intracorporal electronic therapeutic instrument, passes through pulse
Generator granting provides the electric pulse of energy by battery, and by the conduction of lead electrode, the cardiac muscle that stimulating electrode is contacted makes the heart
Dirty excitement and contraction, to achieve the purpose that treatment due to certain arrhythmia caused heart dysfunctions.
Pacemaker can adjust the pace-making issue policy of itself according to the heart own activity perceived, while can be with
The active state of heart is recorded to provide diagnosis information.It therefore is pacemaker for the correct perception and identification of cardiomotility
Vital function and the difficult point for needing to be continuously improved and emphasis.
Wherein premature event is an important cardiac event, and so-called premature beat refers to the too early impulsion that ectopic pacemaker issues
Caused heartbeat is the most common arrhythmia cordis.Some premature beats are no influences, some premature beats can indicate already exist
Or potential disease, some premature beats may cause other bad arrhythmia cordis, especially after implantable pacemaker.For rising
It fights device therapeutic equipment, since premature beat itself is abnormal rhythm and pace of moving things, it is also possible to lead to other undesirable rhythm and pace of moving things, can also indicate it
The generation of his abnormal rhythm, therefore some detections of the generation of premature beat for pacemaker, treatment or the realization meeting of prophylactic function
It has a certain impact, such as premature beat will affect detection of the pacemaker to itself heart rate, for another example take place frequently PVC (premature
Ventricular contraction- Premature Ventricular Beats) may be Ventricle rhythm an instruction information.
When PVC occurs, RR interphase can shorten, i.e., before sinoatrial node impulsion not yet arrives at ventricle, by any one of ventricle position
Or the ectopic rhythm point of interventricular septum issues the depolarization that electricity impulsion causes ventricle, referred to as Premature Ventricular Beats in advance, abbreviation room is early
(PVC).Therefore most important for the perception of premature event and identification.
In current cardiac treatment equipment, sensing chamber can early be sentenced by whether there is atrial event before ventricular cardiac event
It is disconnected, it can also be judged by the stability of RR interphase.But in these current cardiac treatment equipment, identify ventricular premature beat
Method is usually single, cannot comprehensively identify ventricular premature beat event, to cannot be the heart that ventricular premature beat event may cause
The diagnosing and treating of rhythm and pace of moving things disease provides reliable foundation.
Summary of the invention
The purpose of the present invention is to provide a kind of cardiac pacing systems, to solve in existing cardiac treatment equipment to room property morning
The problem of recognition methods fought is single and unsystematic.
In order to solve the above technical problems, the present invention provides a kind of cardiac pacing system, including control module and with it is described
The sensing module of control module connection；
The control module is configured as, and determines that current ventricular event is ventricular premature beat event according to one of following situations:
Situation one: wholeheartedly sexual intercourse is lacked between current ventricular event and preceding ventricular event when the sensing module senses
Part；
Situation two: when the sensing module senses there is wholeheartedly sexual intercourse between current ventricular event and preceding ventricular event
Part, and the AV interphase between the atrial event and current ventricular event is except the first critical field；
Situation three: the cardiac pacing system is dual chamber pacing system, and the sensing module senses current ventricular event
There is an atrial event between preceding ventricular event, and the AV interphase between the atrial event and current ventricular event is first
When within critical field, the sensing module senses the VV interphase between current ventricular event and preceding ventricular event less than
Two standard interphases；Alternatively, the cardiac pacing system is single-chamber pacing system, the sensing module senses current ventricular event
VV interphase between preceding ventricular event is less than the second standard interphase.
Optionally, the control module is configured as, and according to circumstances one determines that current ventricular event is that first kind room property is early
It fights event.
Optionally, the control module is configured as, and according to circumstances two, and when the AV interphase is less than one first setting
When value, determine that current ventricular event is the second class ventricular premature beat event；First setting value is first critical field
Lower limit value.
Optionally, the control module is configured as, and according to circumstances two, and when the AV interphase is greater than one second setting
When value, determine that current ventricular event is third class ventricular premature beat event；Second setting value is first critical field
Upper limit value.
Optionally, the control module is configured as, and according to circumstances three, and when the VV interphase is less than third standard room
When the phase, determine that current ventricular event is the 4th class ventricular premature beat event；Wherein, the third standard interphase is less than second mark
Quasi- interphase.
Optionally, the control module is configured as, and according to circumstances three, and when the VV interphase is not less than the third
When standard interphase, determine that current ventricular event is the 5th class ventricular premature beat event.
Optionally, the average value and first of continuous R VV interphase before the second standard interphase is the VV interphase
The product of coefficient M, wherein R is the natural number not less than 2, and M is percentage number.
Optionally, the average value and second of continuous R VV interphase before the third standard interphase is the VV interphase
The product of coefficient N, wherein R is the natural number not less than 2, and N is percentage number.
Optionally, the cardiac pacing system further includes pacing module, and the pacing module is connect with the control module；
The control module controls the pacing module and works by scheduled mode according to its judging result to current ventricular event.
Optionally, the control module is identified by numerical digit, the atrial event is marked, externally to export.
In conclusion cardiac pacing system provided by the invention includes sensing module and control module；When sensing module sense
It measures in current ventricular event and preceding ventricular event and lacks atrial event；Alternatively, AV interphase is except the first critical field；Again
Alternatively, VV interphase is less than the second standard interphase；Then control module determines that current ventricular event is ventricular premature beat event.In this way, this
The cardiac pacing system of invention can in detail, systematically realize identification to ventricular premature beat event, and be capable of providing detailed
Diagnostic message, to help medical staff to be better understood by the state of an illness of patient and make rational therapy scheme.In addition, the present invention provides
Cardiac pacing system can be used for the assessment of all kinds of cardiac rhythms, diagnosing and treating etc., equipment can be made more flexible, simple
Realization therapeutic scheme improvement and innovation.
Further, control module of the invention can also be by the differentiation to three kinds of situations, to the different degrees of of ventricular premature beat
It is identified, is the assessment of all kinds of cardiac rhythms, diagnosing and treating provides more detailed information；It simultaneously can be free using object
The identification demand needed is selected, equipment can be made to provide more physiological treatment solution.
Detailed description of the invention
It will be understood by those skilled in the art that the attached drawing provided is for a better understanding of the present invention, without to this
The range of invention constitutes any restriction.Wherein:
Fig. 1 is the workflow for the cardiac pacing system that one embodiment of the invention provides；
Fig. 2 is the composite structural diagram of the hardware for the cardiac pacing system that one embodiment of the invention provides.
In attached drawing:
01- main control unit；02- time control unit；03,04- data/information interactive interface；05- pacing module；06-
Sensing module；07- program-controlled unit；08- control module；09- digital-to-analog module.
Specific embodiment
To keep the purpose of the present invention, advantages and features clearer, below in conjunction with the drawings and specific embodiments to the present invention
It is described in further detail.It should be noted that attached drawing is all made of very simplified form and is not drawn on scale, only to side
Just, the purpose of the embodiment of the present invention is lucidly aided in illustrating.In addition, the structure that attached drawing is shown is often one of practical structures
Point.Particularly, the emphasis that each attached drawing needs to show is different, uses different ratios sometimes.
As used in this specification and in the appended claims, singular "a", "an" and "the" packet
Plural reference is included, in addition in addition non-content explicitly points out.As used in the specification and the appended claims, term
"or" be usually carried out with including the meaning of "and/or" using, in addition in addition non-content explicitly points out, term " preceding " or
" rear " is often referred to chronological front and back.
The embodiment of the present invention provides a kind of cardiac pacing system comprising: sensing module and control module, the perception mould
Block and control module preferably pass through data/information interactive interface communication connection.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is the workflow for the cardiac pacing system that one embodiment of the invention provides
Schematic diagram, Fig. 2 are the composite structural diagrams of the hardware for the cardiac pacing system that one embodiment of the invention provides.As shown in Figure 1, this reality
The course of work for applying the cardiac pacing system of example offer specifically includes:
Step 1: sensing ventricular event (being defined as the second ventricular cardiac event, i.e. current ventricular event)；I.e. step 1 is to hold
The precondition of row following step；Here, the second ventricular cardiac event occurs preceding ventricular event (being defined as the first ventricular cardiac event)
Later, and the first ventricular cardiac event specifically may include ventricular sense or ventricular pacemaking；
Step 2: judge current ventricular event and preceding ventricular event (i.e. the first ventricular cardiac event and the second ventricular cardiac event) it
Between whether lack atrial event；
If so, output step A1: judging current ventricular cardiac event (i.e. the second ventricular cardiac event) for ventricular premature beat event PVC
(A1)；If it is not, thening follow the steps 3；
Step 3: judge current AV interphase (A is the abbreviation in (atrium) Atria, and V is the abbreviation of Ventricular (ventricle),
Refer to the interphase between current ventricular event and previous atrial event), if except the first critical field；If so, output step
A1: judge current ventricular cardiac event (i.e. the second ventricular cardiac event) for ventricular premature beat event PVC (A1)；If it is not, thening follow the steps 4；
Step 4: judging current VV interphase (referring to the interphase between current ventricular event and preceding ventricular event) whether less than
Two standard interphases；If so, output step A1: judging current ventricular cardiac event (i.e. the second ventricular cardiac event) for ventricular premature beat event
PVC(A1)；If it is not, thening follow the steps 5；
Step 5: judging current ventricular cardiac event (i.e. the second ventricular cardiac event) for normal R wave.
In general, cardiac pacing system can be divided into dual chamber pacing system and single-chamber pacing system, the dual chamber pacing system
Ventricle can be perceived and be paced, atrium can also be perceived and be paced, that is, its sensing module is in addition to can be used for feeling
It surveys outside ventricular cardiac event, it may also be used for sensing atrial event.And single-chamber pacing system described here is then only used for sensing and pace
Ventricle.
In step 1, when the sensing module senses ventricular event, that is, initially enter to the current ventricular event
Judge comparison program；
When the cardiac pacing system is dual chamber pacing system, since its sensing module is in addition to can be used for sensing ventricle thing
Outside part, it is also used to sense atrial event, therefore, in step 2, if sensing module senses current ventricular event and previous ventricle thing
An atrial event is lacked between part, then it is ventricular premature beat event PVC (A1) that control module, which can directly determine current ventricular event,.Into
Such other ventricular premature beat event recognition can be first kind ventricular premature beat event PVC1 (output step A11) by one step.The first kind
Ventricular premature beat event PVC1 is most typical, is simultaneously also most easy identified ventricular premature beat, without leading atrial event, i.e.,
It is non-by passing initiation under atrial potential, but caused by ventricular ectopic excitement point excitement.It is different that this type PVC shows as complete AV
Step, RR interphase shift to an earlier date.The first kind ventricular premature beat event PVC1 judged can provide reference, example for the diagnosis or treatment of doctor
Such as, specially treated is needed for this kind of ventricular premature beat event or ignored.
In addition, in step 3, if sensing module, which senses, has atrium thing between current ventricular event and preceding ventricular event
Part, but the AV interphase between the atrial event and preceding ventricular event, when except the first critical field, control module also can be true
Determining current ventricular event is ventricular premature beat event PVC (A1).First critical field can be carried out according to the timing of normal heart event
Setting, for the range in section [the first setting value, the second setting value], that is, the first critical field is not less than the first setting
Value, and it is not more than the second setting value, the first setting value is the lower limit value of first critical field, and the second setting value is first mark
The upper limit value of quasi- range.Here the first setting value and the second setting value can be according to the timing of normal heart event or with doctor
The concrete condition of raw experience and patient is set, and such as the first setting value chooses 30ms, and the second setting value chooses 300ms etc.,
It should be understood that the first setting value is less than the second setting value herein.If the AV interphase is not in the first critical field, illustrate to work as
Preceding ventricular cardiac event is not the biography down of previous atrial event, is a ventricular premature beat event.
Further, the AV interphase can further be differentiated at this time, i.e. step 6: judges whether AV interphase is small
In the first setting value.If the AV interphase is less than first setting value, the control module determines that current ventricular event is the
Two class ventricular premature beat event PVC2 (output step A12).Second class ventricular premature beat event PVC2 has been observed that in a device
Leading atrial event, but AV interphase length is too small, without interior in normal range (i.e. the first critical field), at this time still
Think AV be onrelevant, it is asynchronous.It is asynchronous that this type PVC shows as incomplete AV, and the variation of RR interphase is unobvious.It is similar
Ground, the second class ventricular premature beat event PVC2 judged can provide reference for the diagnosis or treatment of doctor, for example, normal
It can be used as normal Vs processing (ventricular sense) in pace-making timing；For another example, it diagnoses or treats in function in part and need it
Count or do specially treated.
And if in the judgement of step 6, the AV interphase be greater than first setting value, due to the previous step 3 of step 6
In it is determined that the AV interphase is in except the first critical field, so can obtain the AV interphase is actually to be greater than second to set
Definite value.At this point, the control module determines that current ventricular event is third class ventricular premature beat event PVC3 (output step
A13).Third class ventricular premature beat event PVC3 is observed that leading atrial event in a device, but AV interphase length
It is too long, without in normal range, still believe that at this time AV be onrelevant, it is asynchronous.This type PVC shows as part
AV is synchronous, RR (R is ventricular depolarization complex)) interphase slightly extends.Similarly, the third class ventricular premature beat event PVC3 judged can
With for doctor diagnosis or treatment reference is provided, for example, can be used as normal Vs processing in normally pace-making timing, generally
It needs to be counted (for example, pacemaker can be within a preset time applied in pacemaker partially diagnosing or treating in function
The number of premature event is counted, to provide foundation for diagnosis) or do specially treated (e.g., applied in pacemaker, pacemaker
Corresponding function is preset, when such premature beat occurs, pacemaker makes corresponding treatment measures) etc..
If in step 3, sensing module senses the AV interphase between atrial event and current ventricular event in the first mark
Within the scope of standard, then step 4 is continued to execute.
In step 4, if the VV interphase between current ventricular event and preceding ventricular event is less than the second standard interphase,
Control module can determine that current ventricular event is ventricular premature beat event PVC (A1).The value of second standard interphase, can be according to patient's
Concrete condition is set, can also be calculated according to the value of several VV interphases before current VV interphase and the standard that acquires
VV interphase is set.Preferably, the second standard interphase before being current VV interphase the average value of continuous R VV interphase and
The product of first coefficient M, wherein R is the natural number not less than 2, and M is percentage number.Here, can will connect before current VV interphase
The average value of R continuous VV interphase is defined as standard VV interphase, and the first coefficient M is then as expansion threshold coefficient, M and R
It is chosen according to the case where experience of doctor or patient.For example, M can use 75%, R desirable 16.In general, if room property does not occur
Premature beat, then VV interphase should be more uniform value, on this basis, takes the average value of multiple VV interphases as standard VV interphase,
And on this basis multiplied by the first coefficient M, to expand the identification range of normal ventricle event, the generation of misrecognition can avoid.
Further, the VV interphase can further be differentiated at this time, i.e. step 7: judges whether VV interphase is small
In third standard interphase, if the VV interphase is less than third standard interphase, the control module determines that current ventricular event is
4th class ventricular premature beat event PVC4 (output step A14)；Wherein, the third standard interphase is less than second standard room
Phase.Preferably, the average value of continuous R VV interphase and the second system before the third standard interphase is the current VV interphase
The product of number N, wherein R is natural number not less than 2, and N is percentage number, and here, N and R can experience according to doctor or trouble
The case where person, is chosen, for example, N can use 45%, R desirable 16.It here, can be right when VV interphase is less than the second standard interphase
It further determines whether also less than third standard interphase, further to judge the degree and type of ventricular premature beat at this time.If VV
Interphase is less than third standard interphase, then is identified as the 4th class ventricular premature beat event PVC4, this kind of premature event typically occurs in fastly
In the case of speed arrhythmia cordis or burst rapid heart rate, in tachyarrhythmia, AV is often onrelevant, and fast in burst
When fast heart rate situation, AV is usually to be associated with, and RR interphase is stablized.Similarly, the 4th class ventricular premature beat event PVC4 judged can
With for doctor diagnosis or treatment reference is provided, for example, the 4th class ventricular premature beat event normally pace-making timing in generally make
For normal Vs processing, then need to be counted or done specially treated (in the advanced function of pacing therapy diagnosing or treating in function
Specially treated can be done in energy).
And if in the judgement of step 7, the VV interphase be not less than the third standard interphase, due to the preamble of step 7
It is determined that the VV interphase is less than the second standard interphase in step 4, so can obtain the VV interphase is actually to be in
Between third standard interphase and the range of the second standard interphase.At this point, the control module determines that current ventricular event is the 5th
Class ventricular premature beat event PVC5 (output step A15).In the case that this kind of ventricular premature beat event typically occurs in the quickening of room rate, have
Leading atrial premature beats event, AV association, RR interphase follow room rate to change；Similarly, the 5th class ventricular premature beat thing judged
Part PVC5 can provide reference for the diagnosis or treatment of doctor, for example, can be used as normal Vs in normally pace-making timing
It handles (ventricular sense)；For another example, it diagnoses or treats in function in part and need to be counted or done specially treated.
It should be understood that above-mentioned steps 2, step 3 and step 4 are progressive option, required step can be chosen as needed
Suddenly it is executed, also can skip some steps, can also directly be opened from intermediate step according to the applicability of cardiac pacing system
Begin to execute, cardiac pacing system provided in this embodiment is not limited to for above-mentioned steps being all finished.Such as in some implementations
In example, the cardiac pacing system is dual chamber pacing system, but can only carry out step 1 and step 2, i.e., only needs to correspond to situation
Whether one identification current ventricular event is ventricular premature beat event PVC, or further whether identification current ventricular event is first
Class ventricular premature beat event PVC1, without making identification and processing to other types of ventricular premature beat event.In some implementations
In example, step 1, step 2 and step 3 can be only carried out, identifies whether current ventricular event is ventricular premature beat thing corresponding to situation two
Part can also execute step 6 further to identify whether as the second class ventricular premature beat event PVC2 or third class ventricular premature beat event
PVC3, without making identification and processing to other types of ventricular premature beat event；In another example in other embodiments,
When the cardiac pacing system is single-chamber pacing system, the sensing module is only used for sensing ventricular cardiac event, can skip at this time
Step 2 and step 3, and after step 1 directly execute step 4, behind execute step 5 or 7.And in some cases, it is not required to
To classify to the degree of ventricular premature beat event, and only need to whether being that ventricular premature beat event is qualitatively differentiated, then this
When can not execute step 6 and step 7.The present invention is not construed as limiting the selection of step 2~step 4 and execution.
Preferably, the control module is identified by numerical digit, the ventricular cardiac event is marked, externally to export.
In the present embodiment, bit coded pattern method can be used, ventricular cardiac event type is identified, for example, as shown in the table:
| Ventricular premature beat type | Event type |
| Bit4~7 is encoded | Bit0~3 is encoded |
A byte can be used to be identified ventricular cardiac event, the current event type of low four labels (do not answer by such as 2 representatives
Phase outer ventricular sense, 6 represent the perception of refractory period ventricular)；Gao Siwei marks whether current event is ventricular premature contraction event (such as 0
Normal ventricle perception is represented, 1,2,3,4,5 respectively represents first, two, three, four, five class ventricular premature beat events), if being then the
The outer ventricular premature contraction of a few class ventricular premature beat events, such as the second class refractory period can be identified as " 0x22 ".Classification and Identification in this way
And mark, what cardiac pacing system can be apparent learns the specifying information of current perception event, and can be used to externally export, with
Just diagnosis is flexibly used in, in the functional modules such as treatment.
Preferably, the cardiac pacing system further include: data/information interactive interface, the control module pass through described
Data/information interactive interface and the sensing module communication connection.
It is furthermore preferred that the cardiac pacing system further includes pacing module, the pacing module and control module pass through number
According to/information interactive interface communication connection；According to its judging result to current ventricular event, control is described to be risen the control module
Module of fighting works by scheduled mode.For example, corresponding function can be preset to cardiac pacing system, when control module judges
When current ventricular event is first kind ventricular premature beat event, then controls the pacing module and work by scheduled mode and make phase
The treatment measures answered.Scheduled mode herein, specifically can be depending on pre-set corresponding function.
Referring to FIG. 2, the hardware of cardiac pacing system provided in this embodiment specifically includes: control module 08, Yi Jiyu
The digital-to-analog module 09 that the control module 08 connects.Here, control module 08 can be microprocessor, control device etc.
Controller.The present invention to the selection of the control module 08 and implementation etc. with no restriction.
The control module 08 may include main control unit 01, time control unit 02 and data/information interactive interface
03.The main control unit 01 is realized to generation event and the control that event need to occurs etc., can also be realized to the event of generation
Record and statistics etc., such as cardiac event.The main control unit 01 can choose through the time control unit 02 come real
The now control function of timing, calendar scheduling time correlation, such as the time control unit 02 can capture and record event
Time, also can control need to occur accurate time of origin of event etc..The data/information interactive interface 03 for realizing with
The interaction of data or information of other intermodules etc., such as interacts with digital-to-analog module 09 in device.Data/the letter
Breath interactive interface 03 can be common I/O interface, be also possible to the data transmission module of serial or parallel, the data/letter
Breath interactive interface 03 can receive perception event information, provide pace events request, serial data interaction, clock data interaction
Deng if pacing signal is to be interactively communicated by the realization of I/O line with perceptual signal.
Digital-to-analog module 09 may include sensing module 06 and pacing module 05, can also include data/information interaction
Interface 04 and program-controlled unit 07；The pacing module 05 includes pace-making control/generation unit, the sensing module 06 including perceiving
Control/amplifying unit.The data/information interactive interface 04 can be with corresponding data/information interactive interface (as being located at control
The data/information interactive interface 03 of module) signal connection is carried out, to interact, its certain implementation can be different from.
Pace-making control/generation the unit receives the signal function for pacing request and generating desired strength of microprocessor in outside, such as
Ventricle or ventricle.Certainly, in some embodiments, the pace-making control/generation unit can also undertake least a portion of control simultaneously
Function processed, such as according to by effective object difference, the intensity of signal, type difference and finely tune pacing signal.The sense
Know that control/amplifying unit can capture and distinguish external true signal and notify control module 08, such as heart signal, and
Signal can be amplified as needed.The program-controlled unit 07 can carry out information exchange, such as connect with the external world, such as user
The request of user mode handover operation is received, by data/information interactive interface 04 and data/information interactive interface 03, will be requested
Information is conveyed to main control unit 01, and controls implementation pattern switching by main control unit 01.Particularly, the sensing module
It is always on no matter 06 cardiac pacing system operates in any mode.
In conclusion cardiac pacing system provided by the invention includes sensing module and control module；When sensing module sense
It measures and lacks atrial event between current ventricular event and preceding ventricular event；Alternatively, AV interphase is except the first critical field；
Or VV interphase is less than the second standard interphase；Then control module determines that current ventricular event is ventricular premature beat event.In this way,
Cardiac pacing system of the invention can in detail, systematically realize identification to ventricular premature beat event, and be capable of providing in detail
Diagnostic message, to help medical staff to be better understood by the state of an illness of patient and make rational therapy scheme.In addition, the present invention mentions
The cardiac pacing system of confession can be used for the assessment of all kinds of cardiac rhythms, diagnosing and treating etc., and equipment can be made more flexible, simple
The improvement and innovation of single realization therapeutic scheme.
Further, control module of the invention can also be by the differentiation to three kinds of situations, to the different degrees of of ventricular premature beat
It is identified, is the assessment of all kinds of cardiac rhythms, diagnosing and treating provides more detailed information；It simultaneously can be free using object
The identification demand needed is selected, equipment can be made to provide more physiological treatment solution
It should be noted that the composed structure of the hardware of cardiac pacing system provided above should be regarded as to the implementation present invention
Type of device a preferable example, the present invention do not make special limit to this.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (10)
1. a kind of cardiac pacing system, which is characterized in that including control module and the sensing module being connect with the control module；
The control module is configured as, and determines that current ventricular event is ventricular premature beat event according to one of following situations:
Situation one: an atrial event is lacked between current ventricular event and preceding ventricular event when the sensing module senses；
Situation two: having an atrial event when the sensing module senses between current ventricular event and preceding ventricular event,
And the AV interphase between the atrial event and current ventricular event is except the first critical field；
Situation three: the cardiac pacing system is dual chamber pacing system, and the sensing module senses current ventricular event with before
There is an atrial event, and the AV interphase between the atrial event and current ventricular event is in the first standard between ventricular event
Within the scope of when, the sensing module sense the VV interphase between current ventricular event and preceding ventricular event less than second mark
Quasi- interphase；Alternatively, the cardiac pacing system is single-chamber pacing system, the sensing module senses current ventricular event with before
VV interphase between ventricular event is less than the second standard interphase.
2. cardiac pacing system according to claim 1, which is characterized in that the control module is configured as, according to feelings
Condition one determines that current ventricular event is first kind ventricular premature beat event.
3. cardiac pacing system according to claim 1, which is characterized in that the control module is configured as, according to feelings
Condition two, and when the AV interphase is less than first setting value, determine that current ventricular event is the second class ventricular premature beat event；
First setting value is the lower limit value of first critical field.
4. cardiac pacing system according to claim 1, which is characterized in that the control module is configured as, according to feelings
Condition two, and when the AV interphase is greater than second setting value, determine that current ventricular event is third class ventricular premature beat event；
Second setting value is the upper limit value of first critical field.
5. cardiac pacing system according to claim 1, which is characterized in that the control module is configured as, according to feelings
Condition three, and when the VV interphase is less than third standard interphase, determine that current ventricular event is the 4th class ventricular premature beat event；
Wherein, the third standard interphase is less than the second standard interphase.
6. cardiac pacing system according to claim 5, which is characterized in that the control module is configured as, according to feelings
Condition three, and when the VV interphase is not less than the third standard interphase, determine that current ventricular event is that the 5th class room property is early
It fights event.
7. cardiac pacing system according to claim 5 or 6, which is characterized in that the second standard interphase is the VV
The product of the average value and the first coefficient M of continuous R VV interphase before interphase, wherein R is the natural number not less than 2, M hundred
Divide and compares number.
8. cardiac pacing system according to claim 5 or 6, which is characterized in that the third standard interphase is the VV
The product of the average value and the second coefficient N of continuous R VV interphase before interphase, wherein R is the natural number not less than 2, N hundred
Divide and compares number.
9. cardiac pacing system according to claim 1, which is characterized in that the cardiac pacing system further includes pace-making mould
Block, the pacing module are connect with the control module；The control module according to its judging result to current ventricular event,
The pacing module is controlled to work by corresponding mode.
10. cardiac pacing system according to claim 1, which is characterized in that the control module is identified by numerical digit, right
The atrial event is marked, externally to export.
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