CN101502442A - Radio frequency ablation system, ablation controller and radio frequency ablation device - Google Patents
Radio frequency ablation system, ablation controller and radio frequency ablation device Download PDFInfo
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- CN101502442A CN101502442A CNA200810057723XA CN200810057723A CN101502442A CN 101502442 A CN101502442 A CN 101502442A CN A200810057723X A CNA200810057723X A CN A200810057723XA CN 200810057723 A CN200810057723 A CN 200810057723A CN 101502442 A CN101502442 A CN 101502442A
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Abstract
The invention discloses an RF ablation system, comprising an ablation controller and an RF ablation device. The ablation controller is used for generating RF energy, controlling the RF energy according to the set programs and conductance value of the ablation part acquired by the RF ablation device, generating excitation current according to the preset programs, receiving the results of measurement carried out by the RF ablation device by using the excitation current and judging whether ablation is successful or not; the RF ablation device is used for receiving the RF energy for RF ablation, sending the conductance value of the ablation part back to the ablation controller, carrying out conduction state measurement on the ablation part by the excitation current generated by the ablation controller and sending the measuring results back to the ablation controller. The operation process is simplified as the operations of taking out the ablation clamps and putting in the pacing leads are unnecessary, thereby reducing the operation time, lowering the operation difficulty, increasing the operation safety and providing better operation effects.
Description
Technical field
The present invention relates to medical instruments field, particularly radio frequency ablation system, ablation controller and RF ablation device.
Background technology
Atrial fibrillation is a kind of common arrhythmia heart disease.Because unnecessary abnormal electrical signal is accepted in the atrium, cause the atrium to beat significantly to speed and extremely irregular, formed auricular fibrillation.Atrial fibrillation can influence the blood-pumping function of heart, also just means, human body brain and other organ can not get enough blood supplies.Along with the development of time, atrial fibrillation can cause that cardiac function descends, and causes the irreversibility heart and injury.When atrial fibrillation caused that cardiac pumping function is not enough, some blood can deposit and form the blood pond in heart, thereby became thickness and form thrombosis.Come off as the fruit part thrombosis, might cause apoplexy.In fact, untreated atrial fibrillation patient, occurrence of stroke exceeds 5 times than the normal person.
In recent years, rise a kind of method for the treatment of atrial fibrillation, be also referred to as radio-frequency ablation procedure.This Therapeutic Method is to produce radio-frequency (RF) energy by the use radio frequency ablation system, utilizes radio-frequency (RF) energy that calcination is carried out at the position that produces the abnormal electrical signal on the heart, and these positions that produce the abnormal electrical signals will form cicatrix because of calcination.The cicatrix that these calcinations form can be blocked the propagation of the abnormal electrical signal that causes atrial fibrillation, thereby cures atrial fibrillation.
At present, in the radio frequency ablation system commonly used, for guaranteeing to melt success, melt after pincers carry out radio-frequency (RF) ablation in use, need to take out and to melt pincers, and use pacing signal mapping equipment to carry out mapping, if mapping result proves that ablation site can't propagating electrical signals, can think then and melt success that melt pincers and carry out ablation operation once more otherwise will use, this process often wants repeated multiple times could guarantee ablation effect preferably.Melt pincers because need repeatedly repeat to take out, put into the pace-making lead, put into the operation of melting pincers again, cause operation complicated, the danger and the operating difficulty of operation are bigger.On the other hand, because existing radio-frequency (RF) ablation pincers adopt scissor closed manners mostly, closing force is inhomogeneous, with inhomogeneous by the contact pressure of ablation tissue, causes the ablation of tissue degree inhomogeneous when melting.Also have, existingly melt the operation that pincers need manually be pushed maintenance,, cause easily and melt incomplete or excessive calcination, make and organize carbonization for the effective controlled pressure of the tissue of different-thickness.
Summary of the invention
The embodiment of the invention provides a kind of radio frequency ablation system, can reduce the operation complexity and the operating difficulty of radio-frequency (RF) ablation operation, reduces operating time.
The embodiment of the invention provides a kind of control device that melts, and can reduce the operation complexity and the operating difficulty of radio-frequency (RF) ablation operation, reduces operating time.
The embodiment of the invention provides a kind of RF ablation device, can reduce the operation complexity and the operating difficulty of radio-frequency (RF) ablation operation, reduces operating time.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of radio frequency ablation system, this system comprises and melts control device and RF ablation device;
The described control device that melts is used to produce radio-frequency (RF) energy, and the electric conductivity value of the ablation site of obtaining according to the program of setting and by RF ablation device, and the radio-frequency (RF) energy that produces is controlled; Produce excitation current according to default program, receive the measurement result that described RF ablation device utilizes excitation current to measure, whether judgement melts successful;
Described RF ablation device is used for the received RF energy and carries out radio-frequency (RF) ablation; The electric conductivity value of ablation site returned melt control device; The excitation current that the control device generation is melted in utilization carries out the conduction state measurement to ablation site, measurement result is returned melted control device.
A kind of control device that melts, this device comprise radio frequency generation module, mapping module and main control module;
Described radio frequency generation module is used for producing radio-frequency (RF) energy according to the control of main control module, and exports to RF ablation device, the electric conductivity value of the ablation site that the received RF ablating device obtains;
Described mapping module is used for producing excitation current according to the control of main control module, receives the measurement result of utilizing excitation current to measure that described RF ablation device returns;
Described main control module is used for the electric conductivity value of ablation site or default the melting the time that receive according to described radio frequency generation module, and the correlation radio-frequency (RF) energy that living module produces that takes place frequently is controlled; Produce excitation current according to default programme-control mapping module, and whether successfully melt according to the described measurement result judgement that RF ablation device returns by the mapping module.
A kind of RF ablation device, this device comprises:
Ablating electrode is used to receive and melts the radio-frequency (RF) energy that control device produces, and ablation site is carried out radio-frequency (RF) ablation; Obtain the electric conductivity value of ablation site, return and melt control device;
Exciting electrode is used to receive and melts the excitation current that control device produces, to the ablation site emission signal of telecommunication;
Measurement electrode is used to measure the signal of telecommunication, measurement result is returned melted control device.
Preferably, described RF ablation device is the radio-frequency (RF) ablation pincers, comprises binding clip, pincers handle and push rod;
Described binding clip comprises fixedly jaw and movable jaw, and fixedly jaw links to each other with described pincers handle, and movable jaw links to each other with described push rod;
Described push rod places in the pincers handle, can slide in the pincers handle.
Preferably, be provided with elastomeric element in the pincers handle of described radio-frequency (RF) ablation pincers, when promoting closed fixedly jaw of push rod and movable jaw, described elastomeric element is compressed, produce counteracting force, the closing force that is maintained fixed between jaw and movable jaw is invariable in set point.
As seen from the above technical solutions, radio frequency ablation system of the present invention is by melting control device and RF ablation device is formed.Wherein, melt control device and be used to produce radio-frequency (RF) energy, and the electric conductivity value of the ablation site of obtaining according to the program of setting and by RF ablation device, the radio-frequency (RF) energy that produces is controlled, produced excitation current, receives measurement result that described RF ablation device utilizes excitation current to measure, judges and melt whether success according to default program; RF ablation device is used for the received RF energy and carries out radio-frequency (RF) ablation, the electric conductivity value of ablation site is returned melt control device, utilize and melt excitation current that control device produces and ablation site is carried out conduction state measure, measurement result returned melt control device, make the doctor not unclamping under the situation that melts pincers directly by melting the mapping functional check ablation effect of control device, if the result of mapping is undesirable, the doctor can not unclamp melts pincers and continues to melt in former ablation locations, perhaps melts once more near ablation locations.Owing to do not need to take out and do not melt pincers, put into operation such as pace-making lead, simplified surgical procedure, therefore can reduce operating time, reduce operating difficulty, increase the safety of performing the operation, better surgical effect is provided.By the electric conductivity value of real-time measurement ablation site, can control flexibly radio-frequency (RF) energy.The radio frequency ablation system of in addition, integrated mapping function can also be saved the instrument space and the power resources of operating room.The pincers that melt of flat-open type have been avoided the uneven problem of ablation effect that causes because of closing force is inhomogeneous.Melt the elastomeric element that uses in the pincers can effectively control to the tissue pressure, to the tissue of different-thickness, can effectively control degree of ablation, be not easy to produce the phenomenon that melts incomplete or excessive calcination.
Description of drawings
Fig. 1 is the radio frequency ablation system structure chart of the embodiment of the invention;
Fig. 2 melts control device guidance panel sketch map for the embodiment of the invention;
Fig. 3 is the perspective view of the RF ablation device of the embodiment of the invention;
Fig. 4 is the pincers handle profile of the radio-frequency (RF) ablation pincers of the embodiment of the invention;
Fig. 5 is the jaw part floor map of the radio-frequency (RF) ablation pincers of the embodiment of the invention.
The specific embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The embodiment of the invention mainly is that the function with radio-frequency (RF) ablation and pacing signal mapping combines, the mapping electrode of the integral measuring signal of telecommunication in the radio-frequency (RF) ablation pincers, need not take out when making ablative surgery to melt to clamp and just can finish the function that melts with mapping, simultaneously by measuring the temperature value and the electric conductivity value of ablation site in real time, radio-frequency (RF) energy is controlled flexibly, thereby reached the minimizing operating time, reduce operating difficulty, increase the safety of operation, the purpose of better surgical effect is provided.
Fig. 1 is the radio frequency ablation system structure chart of the embodiment of the invention, and as shown in the figure, this system comprises and melts control device 101 and RF ablation device 102.
Melt between control device 101 and the RF ablation device 102 and can link to each other by the form of interface and joint, such as adopting an integrated interface to link to each other, this interface is arranged on and melts on the control device 101, and radio-frequency (RF) energy, temperature signal, electric conductivity value signal, excitation current, measurement result etc. all can transmit by the corresponding joint on this interface and the RF ablation device 102.Melt a described integrated interface can be set on the control device 101, also a plurality of integrated interfaces can be set, can depend on actual need and decide.These signals transmission of melting certainly between control device 101 and the RF ablation device 102 also can not adopt an integrated interface to realize, every kind of signal adopts an interface or any two or more signal to adopt an interface also to be fine.
In addition, melting control device 101 can also be further used for detecting being connected the RF ablation device 102 that melts on the control device 101 according to the detection rule that presets, the RF ablation device 102 that has only detection to pass through can normally activate and melt control device 101, if detect failure, then can not enter normal operating conditions, or not allow the user to operate.Whether more typical detection method can be: melt equipment identification information that control device 101 is connected storage in the RF ablation device 102 on the integrated interface by detection and conform to the legitimate device identification information of self storage, as conform to, think then to detect and pass through that failure is then thought to detect and do not passed through.Certainly, judge that RF ablation device 102 is whether legal and also be fine by detecting other information such as password.
In addition, the above-described control device 101 that melts can not controlled the radio-frequency (RF) energy that produces according to the temperature value of ablation site yet, and RF ablation device 102 also can not obtain the temperature value of ablation site.
In above system, melt control device 101 and comprise radio frequency generation module 104, mapping module 105 and main control module 103.
Radio frequency generation module 104 is used for producing radio-frequency (RF) energy according to the control of main control module 103, and exports to RF ablation device 102, temperature value that received RF ablating device 102 obtains and the electric conductivity value between ablating electrode.
Preferably, this device can also comprise signal output module 106, be used for the signal that main control module 103 produces is exported by sound, light or image mode, such as, signal output module 106 can comprise display, loudspeaker, buzzer, light emitting diode etc.Display is in order to displays temperature value, electric conductivity value, radio-frequency power value, mapping result, equipment state etc.In addition, above-mentioned when RF ablation device 102 is detected, pass through if detect, can be on display display device information, do not pass through if detect, can also send prompt messages by light emitting diode, sound etc., such as adopting buzzing warning etc.Certainly melt in the control device 101,, also various signal output interfaces can be set, connect equipment such as external display, loudspeaker if do not comprise signal output module.
Preferably, this device can also comprise human-machine interface module 107, be used to provide the operation interface that melts control device 101 to described, as switch, button, keyboard, touch screen etc., human-machine interface module 107 can directly be controlled each module that melts in the control device, also can control other module indirectly by main control module 103.
Above-mentioned radio frequency generation module 104 comprises radio frequency generating unit 111, temperature measurement unit 113 and conductance measurement unit 112.
Radio frequency generating unit 111 is used for producing radio-frequency (RF) energy under the control of described main control module 103, and exports to RF ablation device 102.
Excite unit 115 to be used under the control of described main control module 103, producing excitation current, and export to RF ablation device 102.
Wherein radio frequency control unit 108 is used for the correlation radio-frequency (RF) energy that living unit 111 produces that takes place frequently and controls, if the temperature value of ablation site surpasses the time of default temperature value or radio-frequency (RF) energy generating unit 111 generation radio-frequency (RF) energy and surpasses the default time limit, then control radio frequency generating unit 111 and stop to produce radio-frequency (RF) energy, and send warning information by signal output module 106; If the electric conductivity value of ablation site is lower than default electric conductivity value and the persistent period reaches preset value, then notify the user to melt success by signal output module 106.
In addition, if melting control device 101 does not control the radio-frequency (RF) energy that produces according to the temperature value of ablation site, also can not comprise temperature measurement unit 113 in the radio frequency generation module so, correspondingly, radio frequency control unit 108 does not need temperature correlation according to the ablation site living unit that takes place frequently to control yet.
Fig. 2 melts control device guidance panel sketch map for the embodiment of the invention; As shown in the figure, mainly comprise main display, temperature display, function switch, display lamp (group), interface (group), mapping button and urgent radio-frequency (RF) switch on the panel.Main display is mainly used in organizes electric conductance, output power information and system status information when showing radio-frequency (RF) ablation; Wherein electric conductance and power information can replace with pointer instrument, and system status information can replace with display lamp.Temperature display can adopt numeral or pointer to show.Function switch is used for selecting radio-frequency (RF) ablation and two functions of mapping, the same time can only have a function selected at most, when selecting ablation functionality, the described control device that melts is used to produce radio-frequency (RF) energy, and the temperature value and the electric conductivity value of the ablation site of obtaining according to the program of setting and by RF ablation device, the radio-frequency (RF) energy that produces is controlled; When selecting the mapping function, the described control device that melts is used for producing excitation current according to default program, receives the measurement result that described RF ablation device utilizes excitation current to measure, and whether judgement melts successful.Certainly, do not have this selector switch also to be fine, and selected a function not represent this function to start immediately, but allow to use this function, this switch can be avoided maloperation, increases the safety of melting control device.Display lamp (group) is used for representing the state of machine, can cooperate buzzer.Interface (group) can be used for stepping on equipment such as switch, mapping line, external control appliance, remote data indicator with RF ablation device 102 and foot and be connected.The mapping button is used for starting and stopping the mapping function, and its mapping is the result be presented on the display screen by figure or literal.Urgent radio-frequency (RF) switch is the on and off switch of radio-frequency signal generator, generally speaking, radio-frequency (RF) ablation is carried out according to preset program, but, preset program might cause ablation site excessively to melt, therefore the doctor can at any time stop or opening the output of radio-frequency (RF) energy by urgent radio-frequency (RF) switch, avoids excessively melting or carrying out the short time ablation operation.Except that the on and off switch that radio-frequency signal generator is arranged on panel, connecting pin can also be set step on the interface of switch, when if foot is stepped on switch and is connected on the interface, two switches can be simultaneously available, perhaps having only foot to step on switch can use, in case foot is stepped on switch and is not connected on the corresponding interface, then the switch on the panel can be used.
Below mainly describe the control device that melts of the embodiment of the invention in detail, will describe the RF ablation device of the embodiment of the invention below in detail.
As shown in Figure 1, RF ablation device 102 comprises ablating electrode 116, temperature sensor 117, exciting electrode 120 and measurement electrode 119.
Ablating electrode 116 is used to receive the radio-frequency (RF) energy that melts control device 101 generations, and ablation site is carried out radio-frequency (RF) ablation; Obtain the electric conductivity value of ablation site, return and melt control device 101.
This device can also comprise sign memory module 118, is used to preserve the equipment identification information of RF ablation device 102, detects for melting control device 101.
Wherein exciting electrode 120 and measurement electrode 119 can be identical on physical arrangement, can be provided with according to concrete purposes, the electrode that is used to receive excitation current is used for received current and supplies to melt the electrode of control device 101 measurements as measurement electrode as exciting electrode.Electrode is specifically as exciting electrode or measurement electrode, can select according to melting in the control device 101 preset program.
Fig. 3 is the perspective view of the RF ablation device of the embodiment of the invention, as shown in the figure, this RF ablation device 102 is radio-frequency (RF) ablation pincers, comprise binding clip 1, pincers handle 2 and push rod 3, push rod 3 can slide in pincers handle 2, pincers handle 2 be provided with cable 4 can with melt control device 101 and link to each other, clamp handle 2 in addition and be provided with handle 5 and push rod release-push 6, binding clip 1 comprises fixedly jaw 7 and movable jaw 8.
Fig. 4 is the pincers handle profile of the radio-frequency (RF) ablation pincers of the embodiment of the invention; As shown in the figure, also be provided with elastomeric element 9 in the pincers handle 2, this elastomeric element can be helical spring, is placed in outside the push rod 3.Certainly adopt other also to be fine as elastomeric elements such as shell fragments.
As shown in Figure 3 and Figure 4, fixedly jaw 7 links to each other with pincers handle 2, and movable jaw 8 links to each other with push rod 3, and push rod 3 places in the pincers handle 2, and push rod 3 can be along the length direction slip of pincers handle 2, thus 8 realizations of drive activity jaw and fixing opening or closed action between the jaw 7.Pincers handle 2 can be made of medical stainless steel, and length is determined according to the requirement of operative site.Angle between two jaws and the pincers handle 2 can be provided with arbitrarily, and wherein 75 ° of angles are preferable angle.When push rod 3 being pushed pincers handle 2 and make two jaws closed, elastomeric element 9 will be compressed, and invariable bounce (as 50N) is provided within the specific limits, make closing force keep invariable, avoid damaged tissue.
In addition, can also be provided with closed-lock device (not shown) in the pincers handle 2, when two jaws are closed into certain position, when just push rod 3 moves to the certain position that clamps in the handle, push rod 3 is locked in the pincers handle, push rod 3 can not be moved again, be used for when melting that fixed RF melts pincers and by the relative position between ablation tissue.Simultaneously, push rod release-push 6 can be used for discharging the push rod 3 of locking, and elastomeric element 9 will make push rod 3 return to initial position by elastic force this moment, i.e. the two jaws position of opening fully.After the two jaw closures, elastomeric element also should have certain flexible surplus, to adapt to different ablation tissue thickness.
Above-mentioned closed-lock device can be the combination of a buckle and draw-in groove, buckle is arranged on the pincers handle 2, draw-in groove is arranged on the push rod 3, after push rod 3 arrives assigned address, buckle snaps in locking push rod 3 in the draw-in groove automatically, when push rod release-push 6 is pressed, buckle is pushed away draw-in groove, thereby discharge push rod; Certainly, the closed-lock device also can adopt other existing methods to realize.
In addition, the sign memory module (not shown) that can also comprise the device identification that is used to store the radio-frequency (RF) ablation pincers in pincers handle 2 or the push rod 3, this module can be arranged on the optional position in pincers handle 2 or the push rod 3, can use any nonvolatile semiconductor memory member to realize.
Fig. 5 is the jaw part floor map of the radio-frequency (RF) ablation pincers of the embodiment of the invention; As shown in the figure, be provided with ablating electrode 10, mapping electrode group 1,2,3,4 in two jaws, preferably, every group of mapping electrode can be made up of 3 mapping electrodes.Fixedly be respectively arranged with an ablating electrode on jaw and the movable jaw, ablating electrode is a line style, mapping electrode group is distributed in the both sides of ablating electrode, wherein a side is as measurement electrode, opposite side is as exciting electrode, as with mapping electrode group 1,3 as exciting electrode, with mapping electrode group 2,4 as measurement electrode.
The mapping electrode can adopt copper as conductive material, can also be gold-plated to prevent copper corrosion.Near the ablating electrode of any one jaw (as the 1mm place) can have the temperature sensor (not shown) in two jaws, to obtain near the temperature of organizing the ablating electrode.Mapping electrode and radio-frequency ablation electrode should maintain a certain distance (as 3mm), make the mapping result accurate.Jaw guarantees that preferably two ablating electrodes can overlap as far as possible when closed, to improve ablation effect.In addition, the electrodeplate that comprises in every group of mapping electrode and the particular location of electrode can be determined as required.
Below legal radio-frequency (RF) ablation pincers are the workflow that example goes on to say the above radio frequency ablation system to insert facility information:
At first select radio frequency generation function, melt pincers in suitable surgery location closure, start the radio-frequency (RF) ablation switch and (can step on switch for foot, button, toggle switch or their combination), melt the ablating electrode that control device produces radio-frequency (RF) energy and clamps by radio-frequency (RF) ablation this moment, to operative site emission radio-frequency (RF) energy, while conductance measurement unit, temperature measurement unit begins real-time with electric conductance between ablating electrode, the measurement result of temperature sends in the main control module near the electrode, and showing (display result can be numeral or figure) by display, main control module picks up counting simultaneously.Surpass default restriction (as 70 degree) if surpass default time limit (as 40 seconds) or temperature, then close the radio frequency generating unit automatically, and by display lamp, display, buzzer warning; If electric conductivity value is lower than default value (as 2.5mS) and more than continual and steady a period of time (as 3 seconds), then master control module judges melts success, and informs the user by display lamp, display, buzzer.This moment, the user can close the radio frequency generating unit, carried out mapping.
When starting the mapping function, system will finish that electric current excites, surveying work automatically according to preset program by the mapping electrode, wherein preset program can for: the 1st group of mapping electrode is as exciting electrode, the emission excitation current, the 2nd, 3 group of mapping electrode receives excitation current as measurement electrode; The 4th group of mapping electrode is as exciting electrode, and emission excitation current, the 2nd, 3 group of mapping electrode receive excitation current as measurement electrode; The 2nd group of mapping electrode is as exciting electrode, and emission excitation current, the 1st, 4 group of mapping electrode receive excitation current as measurement electrode; The 3rd group of mapping electrode is as exciting electrode, and emission excitation current, the 1st, 4 group of mapping electrode receive excitation current as measurement electrode.In one group of exciting electrode, 3 electrodes can be launched excitation current in turn, perhaps launch excitation current simultaneously, and measurement electrode is received current or reception simultaneously in turn too.Concrete mapping program can be according to specifically needing formulation.
The current value that receives according to measurement electrode, melting control device will judge it, if in official hour, in 0.1 millisecond, the current value that measurement electrode receives is lower than the threshold value of setting, then can think and melt success, otherwise for unsuccessful, melting control device can show this current value, judges for the user, perhaps directly shows and melts success or unsuccessful.
In addition, ablating device can also connect radio-frequency (RF) ablation pen or radio-frequency (RF) ablation tweezers, radio-frequency (RF) ablation pen or radio-frequency (RF) ablation tweezers also are a kind of of RF ablation device, melting control device can use device identification to judge the device type of connection, if what connect is radio-frequency (RF) ablation pen or radio-frequency (RF) ablation tweezers, when then starting the radio frequency generating unit, display shows electric conductance between radio frequency power output rather than electrode, simultaneous temperature is measured and the calendar scheduling function still can be used, but mapping function forbidding.At this moment whole system is actual is equivalent to radio-frequency (RF) ablation electric knife of the prior art; Different is, the temperature sensor of native system still can be worked, and protective tissue can be by excessive calcination.
By the above embodiments as seen, this radio frequency ablation system of the present invention, combine by function radio-frequency (RF) ablation and pacing signal mapping, the integrated mapping electrode that can carry out the mapping function in the radio-frequency (RF) ablation pincers, need not take out the radio-frequency (RF) ablation pincers when making ablative surgery and just can finish the function that melts with mapping, reach the minimizing operating time, reduce operating difficulty, increase the safety of operation, the purpose of better surgical effect is provided.By measuring the temperature value and the electric conductivity value of ablation site in real time, can control flexibly simultaneously radio-frequency (RF) energy.The radio frequency ablation system of in addition, integrated mapping function can also be saved the instrument space and the power resources of operating room.The pincers that melt of flat-open type have been avoided the uneven problem of ablation effect that causes because of closing force is inhomogeneous.Melt the buffer spring that uses in the pincers can effectively control to the tissue pressure, to the tissue of different-thickness, can effectively control degree of ablation, be not easy to produce the phenomenon that melts incomplete or excessive calcination.
Institute is understood that; the above is a better embodiment of the present invention only, and is not intended to limit the scope of the invention, and is within the spirit and principles in the present invention all; any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (22)
1, a kind of radio frequency ablation system is characterized in that, this system comprises and melts control device and RF ablation device;
The described control device that melts is used to produce radio-frequency (RF) energy, and the electric conductivity value of the ablation site of obtaining according to the program of setting and by RF ablation device, and the radio-frequency (RF) energy that produces is controlled; Produce excitation current according to default program, receive the measurement result that described RF ablation device utilizes excitation current to measure, whether judgement melts successful;
Described RF ablation device is used for the received RF energy and carries out radio-frequency (RF) ablation; The electric conductivity value of ablation site returned melt control device; The excitation current that the control device generation is melted in utilization carries out the conduction state measurement to ablation site, measurement result is returned melted control device.
2, radio frequency ablation system as claimed in claim 1 is characterized in that, the described control device that melts is further used for the temperature value according to the ablation site of obtaining by RF ablation device, and the radio-frequency (RF) energy that produces is controlled;
Described RF ablation device is further used for temperature value with ablation site and returns and melt control device.
3, radio frequency ablation system as claimed in claim 1 or 2 is characterized in that, the described control device that melts, be further used for RF ablation device being detected according to the detection rule that presets, if detect failure, then do not allow to operate, and send prompt messages.
4, radio frequency ablation system as claimed in claim 2 is characterized in that, the described control device that melts further comprises function switch, is used for selecting at one time a function of ablation functionality and mapping function;
When selecting ablation functionality, the described control device that melts is used to produce radio-frequency (RF) energy, and the temperature value and the electric conductivity value of the ablation site of obtaining according to the program of setting and by RF ablation device, and the radio-frequency (RF) energy that produces is controlled;
When selecting the mapping function, the described control device that melts is used for producing excitation current according to default program, receives the measurement result that described RF ablation device utilizes excitation current to measure, and whether judgement melts successful.
5, a kind of control device that melts is characterized in that, this device comprises radio frequency generation module, mapping module and main control module;
Described radio frequency generation module is used for producing radio-frequency (RF) energy according to the control of main control module, and exports to RF ablation device, the electric conductivity value of the ablation site that the received RF ablating device obtains;
Described mapping module is used for producing excitation current according to the control of main control module, receives the measurement result of utilizing excitation current to measure that described RF ablation device returns;
Described main control module is used for the electric conductivity value of ablation site or default the melting the time that receive according to described radio frequency generation module, and the correlation radio-frequency (RF) energy that living module produces that takes place frequently is controlled; Produce excitation current according to default programme-control mapping module, and whether successfully melt according to the described measurement result judgement that RF ablation device returns by the mapping module.
6, the control device that melts as claimed in claim 5 is characterized in that, this device also comprises:
Signal output module is used for the signal that main control module produces is exported by sound, light or image mode.
7, the control device that melts as claimed in claim 5 is characterized in that, this device also comprises: human-machine interface module is used to provide the operation interface to described main control module.
As claim 5, the 6 or 7 described control device that melt, it is characterized in that 8, described radio frequency generation module comprises:
The radio frequency generating unit is used for producing radio-frequency (RF) energy under the control of described main control module, and exports to RF ablation device;
The conductance measurement unit is used for measuring by RF ablation device the electric conductivity value of ablation site, and sends described main control module to.
9, the control device that melts as claimed in claim 8 is characterized in that, described radio frequency generation module further comprises:
Temperature measurement unit is used for measuring by RF ablation device the temperature value of ablation site, and sends described main control module to.
10, as claim 5, the 6 or 7 described control device that melt, it is characterized in that described mapping module comprises:
Excite the unit, be used under the control of described main control module, producing excitation current, and export to RF ablation device;
Measuring unit is used for utilizing excitation current that ablation site is measured by RF ablation device, and the measurement result that obtains is returned described main control module.
11, as claim 5, the 6 or 7 described control device that melt, it is characterized in that described main control module comprises:
The radio frequency control unit is used for the correlation radio-frequency (RF) energy that living module produces that takes place frequently and controls, and surpasses the default time limit if produce the time of radio-frequency (RF) energy, then controls radio frequency generation module and stops to produce radio-frequency (RF) energy, and send warning information; If the electric conductivity value of ablation site is lower than default electric conductivity value and the persistent period reaches preset value, then sends and melt successfully notice;
The mapping control unit is used for producing excitation current according to preset program control mapping module, if at the appointed time, the measurement result of being returned by the mapping module is not for receiving electric current, then judge and melt success, melt unsuccessfully, and judged result notified otherwise be judged as.
12, the control device that melts as claimed in claim 11 is characterized in that, described main control module further comprises:
The recognition of devices unit is used for the device identification of RF ablation device is detected, if do not detect device identification or device identification is illegal, then bans use of and melts control device, and send warning information.
13, the control device that melts as claimed in claim 11 is characterized in that, described radio frequency control unit is further used for when the temperature value of ablation site surpasses default temperature value, and control radio frequency generation module stops to produce radio-frequency (RF) energy, and sends warning information.
14, a kind of RF ablation device is characterized in that, this device comprises:
Ablating electrode is used to receive and melts the radio-frequency (RF) energy that control device produces, and ablation site is carried out radio-frequency (RF) ablation; Obtain the electric conductivity value of ablation site, return and melt control device;
Exciting electrode is used to receive and melts the excitation current that control device produces, to the ablation site emission signal of telecommunication;
Measurement electrode is used to measure the signal of telecommunication, measurement result is returned melted control device.
15, RF ablation device as claimed in claim 14 is characterized in that, this device also comprises:
Temperature sensor is used to obtain the temperature value of ablation site, returns and melts control device.
16, RF ablation device as claimed in claim 14 is characterized in that, this device also comprises:
Identify memory module, be used to preserve the identification information of RF ablation device, detect for melting control device.
As claim 14,15 or 16 described RF ablation devices, it is characterized in that 17, described RF ablation device is the radio-frequency (RF) ablation pincers, comprises binding clip, pincers handle and push rod;
Described binding clip comprises fixedly jaw and movable jaw, and fixedly jaw links to each other with described pincers handle, and movable jaw links to each other with described push rod;
Described push rod places in the pincers handle, can slide in the pincers handle.
18, RF ablation device as claimed in claim 17 is characterized in that, is provided with described ablating electrode, measurement electrode and exciting electrode on described fixedly jaw and the movable jaw;
Any one is provided with described temperature sensor in described fixedly jaw and the movable jaw.
19, RF ablation device as claimed in claim 18 is characterized in that, described ablating electrode is a line style, is respectively arranged with an ablating electrode on described fixedly jaw and the movable jaw;
One side of described each ablating electrode is provided with one group of measurement electrode;
The opposite side of described each ablating electrode is provided with one group of exciting electrode.
20, RF ablation device as claimed in claim 19 is characterized in that, 3 of described measurement electrode are one group, and 3 of described exciting electrodes are one group.
21, RF ablation device as claimed in claim 17, it is characterized in that, be provided with elastomeric element in the pincers handle of described radio-frequency (RF) ablation pincers, when promoting closed fixedly jaw of push rod and movable jaw, described elastomeric element is compressed, produce counteracting force, the closing force that is maintained fixed between jaw and movable jaw is invariable in set point.
22, RF ablation device as claimed in claim 21 is characterized in that, also is provided with the closed-lock device in the described pincers handle, when being used for the precalculated position in push rod moves to the pincers handle, push-rod lock is fixed in the pincers handle, and push rod can not be moved;
Also be provided with push rod on the described pincers handle and discharge button, be used to discharge blocked push rod.
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| CN200810057723XA CN101502442B (en) | 2008-02-05 | 2008-02-05 | Radio frequency ablation system, ablation controller and radio frequency ablation device |
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