CN206372121U - The electric knife device controlled based on biomedicine signals - Google Patents

Abstract

The electric knife device controlled based on biomedicine signals that the utility model is provided, with electric knife system control loop, including ecg signal acquiring module and R ripples identification triggers circuit, ecg signal acquiring module includes passive linear network, driven-right-leg circuit and analog-digital converter again, R ripples identification triggers circuit also includes electric knife standby module provided with phase timing program between the identification of R ripples and synchronous trigger, R R, electric knife device.By surface electrocardiogram R ripples, synchronously triggering starts electric knife system design principle to the utility model, electric knife is only triggered by R ripples to be started, enter pacemaker ventricular refractory period (VRP) afterwards, such as disturb, VRP will continuously be restarted and pacemaker noise reversion (NR) function is triggered, pacemaker impulse granting is not suppressed, so as to avoid random start and use electric knife, suppress ventricular pace pulse release risk in the ventricle vigilance phase, with the good effect for improving medical science intelligentized control method and safety.

Description

The electric knife device controlled based on biomedicine signals

Technical field

The utility model is related to medical supply servicing unit technical field, particularly belongs to what is controlled based on biomedicine signals Electric knife device.

Background technology

For implanting artificial Permanent Cardiac Pacemakers, it is necessary to the patient of surgical operation, because can using electric knife in art Pacemaker can be disturbed to work, the patient especially relied on pacemaker may cause pacemaker impulse to suppress, cardiac arrest, therefore Carry out surgical operation to use before electric knife, need to generally ask heart specialist to be estimated the pacemaker working condition of patient, journey Control and necessary parameter adjustment.Following suggestion is made using electric knife to the patient of implantable pacemaker in internal authority guide：1. Need to provide the Programmable Pacemakers data of 12 months before this, including pacemaker type, mode of operation, pacemaker working condition and each Parameter is planted to be estimated by heart specialist.2. it is more than pair navel operation suggestion by electrode it is program control be bipolar perception and pace-making, it is right Dependent patient must it is preoperative it is program control be DOO or VOO, otherwise electric knife system work may interfere with pacemaker work, severe patient danger And patient vitals' safety.But the Pacemaker programmer of the doctor, technical staff and costliness with pacemaker Specialty knowledge are not Basic hospital is spread to, needs electric knife then to turn higher level hospital if any operation, therefore may also be to the patient for being badly in need of operation Delay treatment, even the surgical operation that can carry out in basic hospital goes out because local hospital is without corresponding Programmable Pacemakers condition Also have to turn higher level hospital in security consideration, the guidance spirit in this and national serious disease Bu Chu counties is not met, while adding trouble Person and the financial burden of national medical insurance, waste relatively limited medical resource.In addition, even in conditional higher level hospital, It is DOO or VOO that program control pacing mode is needed before corrective surgery, and professional people is observed in whole surgical procedure, postoperative recovery from anesthesia Member is again by pacemaker pattern recovery to preoperative mode of operation time-consuming a few hours or even 10 more than hour, and this needs cardiovascular special Section doctor loads heavy Pacemaker programmer and come and gone for several times, and the sub- professional classification of Internal Medicine-Cardiovascular Dept. is very thin at present, is not institute There is doctor to be carried out to pacemaker program control, the doctor for being only engaged in pacemaker implantation work possesses the skill of Programmable Pacemakers Art, Chang Yinwei, which lacks these technicians, to be in time and the delay time at stop, and pacemaker is with unaware pattern work during this period Make, it will constitute competition the rhythm of the heart, influence the haemodynamics of patient, or even induce arrhythmia cordis, such as pacemaker impulse falls into electrocardio Scheme the ventricle vulnerable period of 30ms before T wave crests peak, there will be the risk of initiation malignant ventricular arrhythmia.

The defect of current electric knife system：The patient relied on for the patient of implantable pacemaker, especially pacemaker, there is no one Individual electric knife system can be used under conditions of pacemaker parameter and pattern is not adjusted.Because, current electric knife system is By patient's random start and use, if the ventricle vigilance phase in pacemaker Time Intervals, start or will using electric knife Suppress ventricular pace pulse release, the patient relied on pacemaker, it would be possible to cause cardiac arrest threat to life.

Utility model content

The purpose of this utility model is to be to provide the electric knife device controlled based on biomedicine signals, so that reach can be right The patient that pacemaker is relied on need not carry out that pacing mode is program control can be with the purpose of the electric knife system used.

The electric knife device provided by the utility model controlled based on biomedicine signals, is controlled back with electric knife system Road, including ecg signal acquiring module and R ripples identification triggers circuit, described ecg signal acquiring module include passive linear again Network, driven-right-leg circuit and analog-digital converter, described R ripples identification triggers circuit are recognized and trigger, R- provided with R ripples Phase timing program between R, it is characterised in that electric knife device also includes electric knife standby module, described electric knife standby module is provided with Manual switch, ecg signal acquiring module, electric knife standby module, R ripples identification triggers circuit are connected by wire, access electric knife system Unite control loop, V11, V12 input interface of passive linear network by conducting wire respectively with human body right upper extremity medial electrode piece, Left upper extremity medial electrode piece is connected, and the input interface of driven-right-leg circuit passes through conducting wire and the right ankle-joint medial electrode piece of human body Connection, the output end of driven-right-leg circuit is connected to passive linear network Voc input interfaces, the output port of passive linear network Export and disturb treated electrocardiosignal to be converted into data signal after being handled by analog-digital converter through anti-electric knife, be conveyed to R ripples Triggers circuit is recognized, the electric knife system control loop battery lead plate at patient back connects the identification of R ripples by loop electrode wire and triggered Circuit outer stretch out electric knife loop port, meanwhile, operation technique contact to cut or coagulation tissue location electric knife-pen make The output port of the electric knife system control loop stretched out with electrode by the active wire of electric knife and electric knife stand-by circuit outer in succession, Wherein, electric knife control program is started provided with electrocardiosignal in described R ripples identification triggers circuit.

Further, the present apparatus is additionally provided with pacemaker mode of operation selection key, competitive cardiac rhythm warning light, described pacemaker Mode of operation selection key is engaged with the switching of electric knife system control loop, described competitive cardiac rhythm warning light and competitive cardiac rhythm Operating key is engaged.

Further, described competitive cardiac rhythm operating key is the selective button that collection acts the two-way switching with resetting.

The electric knife device provided by the utility model controlled based on biomedicine signals, it is same by surface electrocardiogram R ripples Step triggering starts the design principle of electric knife system, is only triggered by R ripples, and pacemaker ventricular refractory period (VRP) is entered afterwards, works as electricity Knife is persistently used in VRP, and can such as occur the i.e. electric knife interference signal of interference can be perceived by ventricular lead, it will continuously restart VRP, directly During to basic pacing interval end, noise reversion (NR) function of triggering pacemaker does not suppress pacemaker impulse granting, now such as frequency Answering (R) is opened, then the frequency driven with sensor is paced, and such as R is closed or without R functions, then paced with lower bound frequency, i.e., Make to suspend electric knife during this, restart VRP not up to basic pacing interval end, will not also suppress the granting of pacemaker impulse, so that complete The random start of electric knife is avoided entirely and suppresses the risk that ventricular pace pulse discharges using the ventricle vigilance phase is likely to be at, tool It is improved the good effect of medical science intelligentized control method and safety.

Brief description of the drawings

Fig. 1 is the circuit theory diagrams of ecg signal acquiring module of the prior art；

Fig. 2 is fundamental diagram of the present utility model；

Fig. 3 is control flow chart of the present utility model.

In figure：I is ecg signal acquiring module；

1st, right upper extremity medial electrode piece；2nd, left upper extremity medial electrode piece；3rd, right ankle-joint medial electrode piece；4th, electric knife-pen is made Use electrode；5th, electric knife system control loop battery lead plate.

Embodiment

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：

The electric knife device provided by the utility model controlled based on biomedicine signals, is controlled back with electric knife system Road, including ecg signal acquiring module and R ripples identification triggers circuit and electric knife standby module, described ecg signal acquiring mould Block includes passive linear network, driven-right-leg circuit and analog-digital converter again, and described R ripples identification triggers circuit is provided with R ripples Identification and trigger, R -- R interval timing program and electrocardiosignal start electric knife control program, ecg signal acquiring module, electricity Knife standby module, R ripples identification triggers circuit are connected by wire, access electric knife system control loop, passive linear network V11, V12 input interface are connected with human body right upper extremity medial electrode piece 1, left upper extremity medial electrode piece 2 respectively by conducting wire, right The input interface of leg drive circuit is connected by the right ankle-joint medial electrode piece of conducting wire and human body, the output of driven-right-leg circuit End is connected to passive linear network Voc input interfaces, and the output port output of passive linear network disturbs treated through anti-electric knife Electrocardiosignal handled by analog-digital converter after be converted into data signal, be conveyed to R ripples identification triggers circuit, patient back Electric knife system control loop battery lead plate 5 connects R ripples by loop electrode wire and recognizes the electric knife loop that triggers circuit outer is stretched out Port, meanwhile, operation technique contact will be cut or the electric knife-pen active electrode 4 of tissue location of coagulation passes through the active wire of electric knife With electric knife stand-by circuit outer stretch out electric knife system control loop output port in succession, wherein, passive linear network is to adopting The electrocardiosignal collected carries out anti-electric knife interference processing, so that electric knife does not disturb R -- R interval timing and identification R ripples after starting； Electric knife standby module is provided with the manual switch of electric knife-pen.

In addition, the present apparatus is additionally provided with pacemaker mode of operation selection key, competitive cardiac rhythm warning light, described pacemaker work Mode selecting key is engaged with the switching of electric knife system control loop so that the present apparatus had both been applicable to non-pacemaker Patient, can be used for the patient of pacemaker again.Pacemaker mode of operation selection key is not pressed, that is, gives tacit consent to electric knife work using logical With pattern, the i.e. corrective surgery suitable for non-pacemaker；Pacemaker mode of operation selection key is pressed, electric knife system has been connected Control loop, i.e., the operation of the patient relied on suitable for pacemaker.Described competitive cardiac rhythm warning light and competitive cardiac rhythm operating key It is engaged.

Further, described competitive cardiac rhythm operating key is the selective button that collection acts the two-way switching with resetting. When competitive cardiac rhythm warning light flashes, if patient does not allow competitive cardiac rhythm, competitive cardiac rhythm operating key is pressed, electric knife system is temporarily disconnected System control loop, electric knife break-off, noise reversion (NR) function of pacemaker is terminated, and competitive cardiac rhythm stops, and competitive cardiac rhythm is carried Show that lamp stops flicker, if hereafter patient needs to keep the work continuity of electric knife, and allow that competitive cardiac rhythm is of short duration deposits after assessing Competitive cardiac rhythm operating key can be being pressed again, by not allowing competitive cardiac rhythm state reset to competitive cardiac rhythm state is allowed, i.e., in R Starting electric knife control program by electrocardiosignal after ripple triggering allows to continue to discharge, and lasting triggering maintains noise reversion (NR).

Claims (3)

1. the electric knife device controlled based on biomedicine signals, with electric knife system control loop, including ecg signal acquiring mould Block and R ripples identification triggers circuit, described ecg signal acquiring module again including passive linear network, driven-right-leg circuit and Analog-digital converter, described R ripples identification triggers circuit is provided with R ripples and recognized and synchronous trigger, R -- R interval timing program, its It is characterised by, electric knife device also includes electric knife standby module, described electric knife standby module is provided with manual switch, electrocardiosignal Acquisition module, electric knife standby module, R ripples identification triggers circuit are connected by wire, access electric knife system control loop, passive line Property network V11, V12 input interface by conducting wire respectively with human body right upper extremity medial electrode piece (1), left upper extremity medial electrode piece (2) connect, the input interface of driven-right-leg circuit is connected by the right ankle-joint medial electrode piece (3) of conducting wire and human body, right leg The output end of drive circuit is connected to passive linear network Voc input interfaces, and the output port output of passive linear network is through anti- The treated electrocardiosignal of electric knife interference is converted into data signal after being handled by analog-digital converter, is conveyed to the identification triggering of R ripples Circuit, the electric knife system control loop battery lead plate (5) at patient back connects R ripples by loop electrode wire and recognized outside triggers circuit Along stretch out electric knife loop port, meanwhile, operation technique contact to cut or coagulation tissue location electric knife-pen active electrode (4) output port of the electric knife system control loop stretched out by the active wire of electric knife and electric knife stand-by circuit outer in succession, its In, described R ripples identification triggers circuit starts electric knife control program provided with electrocardiosignal.

2. the electric knife device according to claim 1 controlled based on biomedicine signals, it is characterised in that the present apparatus is also set There are pacemaker mode of operation selection key, competitive cardiac rhythm warning light, described pacemaker mode of operation selection key and electric knife system control The switching in loop processed is engaged, and described competitive cardiac rhythm warning light is engaged with competitive cardiac rhythm operating key.

3. the electric knife device according to claim 2 controlled based on biomedicine signals, it is characterised in that described competition Rhythm of the heart operating key is the selective button that collection acts the two-way switching with resetting.