WO2018006383A1 - Inter-electrode discharge ablation apparatus - Google Patents
Inter-electrode discharge ablation apparatus Download PDFInfo
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- WO2018006383A1 WO2018006383A1 PCT/CN2016/089276 CN2016089276W WO2018006383A1 WO 2018006383 A1 WO2018006383 A1 WO 2018006383A1 CN 2016089276 W CN2016089276 W CN 2016089276W WO 2018006383 A1 WO2018006383 A1 WO 2018006383A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
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- the invention relates to the field of ablation, in particular to an ablation device for interelectrode discharge.
- the human body is a complex structure composed of many organic and inorganic substances.
- the body fluid contains a large amount of dielectric materials, such as ions, water, colloidal particles, etc., and the human body mainly relies on ions to conduct current.
- dielectric materials such as ions, water, colloidal particles, etc.
- the human body mainly relies on ions to conduct current.
- the direction of concentration change of ions changes with positive and negative half-cycles in the direction of current.
- the ions between the two electrodes move rapidly in the direction of the power line, and gradually change from the moving state to the vibrating state. Due to the different sizes, masses, charges and moving speeds of various ions, the ions rub against each other and collide with other particles to produce biothermal action.
- Radio frequency refers to the radio frequency, but it does not belong to the division of the band in radio communication, because the radiation performance is very low in such a frequency range, so it is rarely used in communication equipment.
- the main effect on the human body is the thermal effect, when the radio frequency current When the frequency is high to a certain value, it will cause the charged ions in the tissue to move and heat up, causing the water inside and outside the tissue to evaporate, dry, shrink and fall off to cause aseptic necrosis.
- Radiofrequency ablation is the use of high-frequency radio frequency current to locally heat up the body's lesion tissue, from the aseptic necrosis of the lesion tissue, thus achieving the purpose of treatment.
- radiofrequency ablation is used in the treatment of a variety of diseases, such as arrhythmias, various types of cancer, disc herniation, and RFA thyroid.
- Commonly used devices are mainly radio frequency devices, back plates and catheter-containing catheters (or electrode pins) that contact the body tissue to be ablated, the back plate is attached to the back of the human body, and the ablation catheter containing the electrodes contacts the body to be ablated.
- the tissue, the back plate is connected to one electrode of the RF device, and the electrode on the ablation catheter is connected to the other electrode of the RF device. If the RF device is working, it will be in the RF device, the back plate, the body tissue and the ablation catheter (or electrode)
- the needle forms a closed current loop.
- the current density of the human tissue in contact with the back plate is much smaller than that of the ablation catheter electrode.
- the commonly used technology is that the head electrode discharges to the back plate. Because the back plate is attached to the human skin tissue, the tissue to be ablated is inside the human body, and the whole body is energized by ablation with radio frequency current, especially the ablation catheter and Human tissue between the current paths of the back plates also has an increased temperature and a higher risk of damaging normal tissue.
- the object of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide an ablation device for making ablation treatment more targeted and controllable, and reducing the inter-electrode discharge to the human body.
- the present invention provides the following technical solutions:
- An inter-electrode discharge ablation device for ablating a lesion tissue in a human body including a tube body, a distal end of the tube body being a distal tube body having an electrode for ablation disposed thereon, the electrode including a positive electrode a negative electrode, the positive electrode and the negative electrode are separately disposed, and the relative positions of the positive electrode and the negative electrode are set to be capable of simultaneously contacting a lesion tissue.
- the ablation of the lesion tissue is ablated by the electrode plus the back plate, and the back plate needs to be in contact with the human body, usually attached to the skin, and then the electrode is inserted into the human body to contact the lesion tissue.
- the electrode-body-back plate forms a current between the plates, generates RF energy
- this ablation method is more complicated, and because the current needs to pass through the whole body, it will also cause certain other healthy tissues.
- the destruction increase the burden on the patient, and even bring sickness;
- a separate positive electrode and a negative electrode are simultaneously disposed on the distal tube body, and the positive electrode and the negative electrode are mutually discharged, and high RF energy is generated in the middle, and the RF energy is used for tissue ablation and ablation.
- the treatment is more targeted and controllable, and there is no longer a need for current to flow through the entire body as in the prior art, causing damage to the positive electrode-disease tissue-negative electrode to form RF energy, compared to existing Technology reduces the damage to the human body during the ablation process.
- two conductive members that apply current to the human tissue are disposed on the ablation catheter, and the area of the human body through which the current passes is small, and it is easy to accurately determine the specific location of the lesion tissue, thereby inducing disease and helping to find the lesion tissue. More accurate and rapid determination of the location of the lesion tissue can save the ablation operation time and improve the ablation efficiency, thereby reducing the patient's pain and reducing the risk of surgery.
- the cooling effect is not good.
- the temperature at which the human tissue and the conductive member are attached is higher than other parts. If the ablative solution is used to cool the ablated human tissue, the ablation temperature may be too high, and the ablation depth may be too deep, even piercing the human tissue. Cause a medical accident.
- at least one of the conductive members is provided with a solution hole communicating with the solution chamber, so that the ablation liquid can be transmitted to the body tissue of a predetermined ablation through the solution chamber and the solution hole, so that the ablation liquid can be cooled and adhered to the conductive member.
- the cooling effect is better, the ablation temperature is easier to control, and the smile effect is better.
- a conductive member is disposed at a center of an end surface of the end portion of the ablation catheter that protrudes into the body tissue, that is, the projection of the tube body is a circle on a projection surface perpendicular to the axis of the tube body.
- a conductive member is disposed at a center of the tube projection.
- the conductive member is provided with the solution hole, and the conductive members are insulated from each other.
- the positive electrode and the negative electrode are both disposed at the distal end of the distal tube body, and are disposed at the end portion, which is more targeted to the lesion tissue.
- an insulating member is disposed between the positive electrode and the negative electrode, and the positive electrode and the negative electrode are absolutely isolated by an insulating member, so that the positive electrode and the negative electrode have better isolation effect, and the positive electrode and the positive electrode are The negative electrodes are facing each other and discharge high RF energy in the middle.
- the RF energy is used for tissue ablation.
- the ablation effect is better than the use of insulating members (although positive and negative electrodes can be achieved without contact). insulation).
- the distal tube body is internally provided with a perfusion tube capable of perfusion liquid, which communicates with the surface of the distal tube body for infusing liquid during cooling ablation to cool the tissue surface to obtain higher Ablation depth.
- the outer wall of the insulating member is provided with a filling hole communicating with the pouring tube.
- a temperature sensor is disposed under the positive electrode and the negative electrode for timely measuring the surface temperature of the tissue to provide a safety guarantee for the doctor during treatment, and to avoid damage to the healthy tissue of the patient due to excessive temperature.
- the temperature sensor is soldered in the positive electrode and the negative electrode to directly measure the temperature of the electrode, and the manufacturing process is more difficult, but the temperature is compared to the way of being disposed below.
- the degree of detection is more accurate, making the ablation process safer.
- the distal end of the distal tube body is provided with a pressure sensor capable of measuring the pressure from the tissue, and the positive electrode and the negative electrode are deformed after contacting the tissue (the elastic force of the tissue is opposite to the electrode The resulting reverse thrust), which causes the pressure sensor at the back end to deform as well, allowing the pressure sensor to detect pressure and provide a scientific basis for the doctor to improve the safety and reliability of the ablation treatment.
- the electrodes are capable of delivering a radio frequency current that is capable of stimulating the lesion for inducing a disease.
- the preferred solution stimulates human tissue by electric shock to induce disease to assist in finding the position of the tissue site that needs to be ablated, that is, when determining the position of the predetermined ablation tissue by using the prior art, the steps of the present scheme are used to assist the body tissue.
- the two conductive members that apply current are disposed on the ablation catheter.
- the area of the human body through which the current passes is small, and it is easy to accurately determine the specific location of the lesion tissue. Therefore, the disease can be induced and the lesion tissue can be searched for, and the lesion tissue can be more accurately and quickly determined.
- the position can save the ablation operation time and improve the ablation efficiency, thereby reducing the patient's pain and reducing the risk of surgery.
- the electrode can be used as a mapping electrode to mark the position of the tip end of the electrode.
- the present invention also provides a method for performing superficial ablation using the ablation device described above, comprising the steps of:
- the electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.
- the stimulation is induced between the electrodes of the distal tube body to induce disease, and if the abnormality electrical signal cannot be detected by the mapping electrode, it is determined that the ablation is successful.
- the invention further provides a method for performing deep ablation using the ablation device described above, comprising the steps of:
- the electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.
- the stimulation is induced between the distal electrodes of the catheter, and the disease is induced. If the abnormality is not detected by the mapping electrode, it is determined that the ablation is successful.
- Figure 1 is a schematic view of ablation of the present invention
- Figure 3 is a cross-sectional view of the present invention.
- Figure 4 is a partial cross-sectional view of the present invention.
- Figure 5 is a cross-sectional view of the main tube
- Figure 6 shows the overall schematic of the device
- an inter-electrode discharge ablation device is used for ablating a lesion tissue in a human body (as shown in FIG. 1, the shaded portion is a human tissue 6, that is, a lesion tissue requiring ablation), including a tube body, A segment of the distal end of the tubular body is a distal tubular body 4 on which an electrode for ablation is disposed. As shown in FIG. 1, the shaded portion is a human tissue 6, that is, a lesion tissue requiring ablation), including a tube body, A segment of the distal end of the tubular body is a distal tubular body 4 on which an electrode for ablation is disposed. As shown in FIG. 1, the shaded portion is a human tissue 6, that is, a lesion tissue requiring ablation), including a tube body, A segment of the distal end of the tubular body is a distal tubular body 4 on which an electrode for ablation is disposed. As shown in FIG. 1, the shaded portion is a human tissue 6, that is, a lesion tissue
- the electrode includes a positive electrode 1 and a negative electrode 2, and the positive electrode 1 and the negative electrode 2 are disposed at The distal end of the distal tube body 4, the positive electrode 1 and the negative electrode 2 are separately disposed, and the insulating member 3 is disposed between the positive electrode 1 and the negative electrode 2 (for plastic materials, if there is good biocompatibility Polycarbonate, etc., the positive electrode 1, the negative electrode 2
- the relative position is set to be able to simultaneously contact a lesion tissue, and the positive electrode 1 and the negative electrode 2 are respectively connected with a positive electrode lead 8 and a negative electrode lead 9 for energizing the electrode, transmitting radio frequency energy, and a positive electrode.
- the wire 8 and the negative electrode wire 9 are disposed inside the distal tube body 4 and arranged along the tube body, and finally connected to the power source.
- the positive electrode 1 and the negative electrode 2 are symmetrically disposed at the distal end of the distal tube body 4. The head.
- the distal tube body 4 is internally provided with a perfusion tube 7 capable of perfusion liquid, which communicates with the surface of the distal tube body 4.
- the outer wall of the insulating member 3 is provided with a communication with the perfusion tube 7.
- the positive electrode 1 and the negative electrode 2 are better contacted to the tissue, and the perfusion hole 31 located between the two electrodes flows out of the liquid, so that the tissue surrounding the electrode can be better cooled.
- the end of the distal tube 4 is provided with a groove, and the positive electrode 1 and the negative electrode 2 are provided with protrusions that cooperate with the grooves, and the positive electrode 1 and the negative electrode 2 pass through the protrusions.
- a temperature sensor 10 is mounted at the end of the distal tube body 4, under the positive electrode 1 and the negative electrode 2, which is soldered in the positive electrode 1 and the negative electrode 2.
- the temperature sensor 10 is 2 thermoelectrics.
- the even lead wire is welded, and the positive electrode lead 8 and the negative electrode lead 9 are connected from the distal tube body 4 through the groove to the positive electrode 1 and the negative electrode 2. This structure is more convenient to install and is easier to process. .
- the rear end of the distal tube body 4 is provided with a pressure sensor 11 capable of measuring pressure from the tissue
- the pressure sensor 11 may be a piezoresistive sensor or a piezoelectric sensor, and the pressure sensor 11 is not Limited to the manner in the embodiments of the present patent, the pressure sensor 11 may further include a pressure sensor 11 that is tested using magnetic, optical, and ultrasonic waves.
- the luer connector 15 is connected to the perfusion tube 8 for delivering a channel for perfusion of liquid.
- Connector 16 for use with Be prepared to connect.
- Embodiments of the present invention may also provide an ablation device that uses a radio frequency current between the electrodes to stimulate a lesion to induce a disease using the emitted radio frequency current.
- the user can adjust the magnitude and period of the RF current according to experience or predetermined settings to induce lesions that may be present.
- An embodiment of the present invention a method for performing superficial ablation using the ablation device described above, comprising the steps of:
- the electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.
- the stimulation is induced between the electrodes of the distal tube body to induce disease, and if the abnormality electrical signal cannot be detected by the mapping electrode, it is determined that the ablation is successful.
- the present invention further provides a method for deep ablation using the backing plate of the above ablation device, comprising the following steps:
- the electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.
- the stimulation is induced between the distal electrodes of the catheter, and the disease is induced. If the abnormality is not detected by the mapping electrode, it is determined that the ablation is successful.
Abstract
Disclosed is an inter-electrode discharge ablation apparatus for ablating a lesion tissue (6) in a human body. The ablation apparatus comprises a tube body, with a section at the distal end thereof being a distal end tube body (4), electrodes (1, 2) for ablation being arranged thereon. The electrodes (1, 2) are arranged separately, the pair of electrodes (1, 2) are arranged at relative positions so that same can simultaneously come into contact with the lesion tissue (6), and the electrodes (1, 2) have a mapping function and mutually release stimulation to find the site of the lesion. The inter-electrode discharge ablation apparatus enables ablation treatment to be more targeted and controllable, and reduces harm to the human body.
Description
本发明涉及消融领域，特别涉及一种极间放电的消融装置。The invention relates to the field of ablation, in particular to an ablation device for interelectrode discharge.
人体是由许多有机和无机物质构成的复杂结构，体液中含有大量的电介质，如离子、水、胶体微粒等，人体主要依靠离子移动传导电流。在高频交流电的作用下，离子的浓度变化方向随电流方向为正负半周往返变化。在高频振荡下，两电极之间的离子沿电力线方向快速运动，由移动状态逐渐变为振动状态。由于各种离子的大小、质量、电荷及移动速度不同，离子相互磨擦并与其它微粒相碰撞而产生生物热作用，The human body is a complex structure composed of many organic and inorganic substances. The body fluid contains a large amount of dielectric materials, such as ions, water, colloidal particles, etc., and the human body mainly relies on ions to conduct current. Under the action of high-frequency alternating current, the direction of concentration change of ions changes with positive and negative half-cycles in the direction of current. Under high-frequency oscillation, the ions between the two electrodes move rapidly in the direction of the power line, and gradually change from the moving state to the vibrating state. Due to the different sizes, masses, charges and moving speeds of various ions, the ions rub against each other and collide with other particles to produce biothermal action.
射频是指无线电频率，但它不属于无线电通信中波段的划分，因为在这样的频率范围内辐射性能很低，故通讯设备中较少采用，面对人体的作用主要是热效应，当射频的电流频率高到一定值时，会引起组织内带电荷的离子运动从而摩擦生热，致使组织内的细胞内外水分蒸发、干燥、固缩脱落以致无菌性坏死。射频消融即是采用高频率的射频电流对人体的病灶组织进行局部升温加热，从使得病灶组织无菌性坏死，从而达到治疗的目的。Radio frequency refers to the radio frequency, but it does not belong to the division of the band in radio communication, because the radiation performance is very low in such a frequency range, so it is rarely used in communication equipment. The main effect on the human body is the thermal effect, when the radio frequency current When the frequency is high to a certain value, it will cause the charged ions in the tissue to move and heat up, causing the water inside and outside the tissue to evaporate, dry, shrink and fall off to cause aseptic necrosis. Radiofrequency ablation is the use of high-frequency radio frequency current to locally heat up the body's lesion tissue, from the aseptic necrosis of the lesion tissue, thus achieving the purpose of treatment.
目前，射频消融术应用于多种疾病的治疗，诸如心率失常、各类癌症、椎间盘突出和RFA甲状腺等。普遍采用的设备主要是射频设备、背极板和接触即将消融的人体组织的含有电极的导管(或电极针)，将背极板贴于人体背部，含有电极的消融导管接触即将消融的人体的组织，背极板与射频设备的一个电极相连，消融导管上的电极与射频设备的另一个电极相连，如射频设备工作时，会在射频设备、背极板、人体组织和消融导管(或电极针)形成一个闭合的电流回路，由于背极板与人体接触的面积远远大于消融导管上的电极与人体组织接触的面积，与背极板接触的人体组织的电流密度远小于与消融导管电极接触
的人体组织电流密度，在射频电流的作用下，与消融导管电极接触的局部人体组织的温度升高，当温度达到一定程度时，该局部人体组织坏死。Currently, radiofrequency ablation is used in the treatment of a variety of diseases, such as arrhythmias, various types of cancer, disc herniation, and RFA thyroid. Commonly used devices are mainly radio frequency devices, back plates and catheter-containing catheters (or electrode pins) that contact the body tissue to be ablated, the back plate is attached to the back of the human body, and the ablation catheter containing the electrodes contacts the body to be ablated. The tissue, the back plate is connected to one electrode of the RF device, and the electrode on the ablation catheter is connected to the other electrode of the RF device. If the RF device is working, it will be in the RF device, the back plate, the body tissue and the ablation catheter (or electrode) The needle) forms a closed current loop. Since the area of the back plate contacting the human body is much larger than the area of the electrode on the ablation catheter contacting the human tissue, the current density of the human tissue in contact with the back plate is much smaller than that of the ablation catheter electrode. Contact
The current density of the human tissue, under the action of the radio frequency current, the temperature of the local human tissue in contact with the ablation catheter electrode is increased, and when the temperature reaches a certain level, the local human tissue is necrotic.
目前常用的技术为头端电极对背极板放电,由于背极板贴于人体皮肤组织，而需要消融的组织在人体内部，通过射频电流进行消融时会对整个人体通电，特别是消融导管与背极板的电流通路之间的人体组织，同样会有温度升高，损坏正常组织的风险较高。At present, the commonly used technology is that the head electrode discharges to the back plate. Because the back plate is attached to the human skin tissue, the tissue to be ablated is inside the human body, and the whole body is energized by ablation with radio frequency current, especially the ablation catheter and Human tissue between the current paths of the back plates also has an increased temperature and a higher risk of damaging normal tissue.
在消融之前需对病灶部位进行准确定位，目前常用的技术为在消融电极消融的同时先放置额外的标测导管进行标测后再进行消融治疗。目前的增加额外的标测导管进行消融治疗会增加手术的难度及时间，同时给患者也增加了痛楚及费用。Accurate positioning of the lesion site is required before ablation. At present, the commonly used technique is to place an additional mapping catheter for the ablation of the ablation electrode before performing the ablation treatment. The current addition of additional mapping catheters for ablation increases the difficulty and time of surgery, and adds pain and expense to the patient.
发明内容Summary of the invention
本发明的目的在于克服现有技术中所存在的上述不足，提供一种使消融治疗更具针对性和可控性，并且降低对人体伤害的极间放电的消融装置。SUMMARY OF THE INVENTION The object of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide an ablation device for making ablation treatment more targeted and controllable, and reducing the inter-electrode discharge to the human body.
为了实现上述发明目的，本发明提供了以下技术方案：In order to achieve the above object, the present invention provides the following technical solutions:
一种极间放电的消融装置，其用于消融人体内的病灶组织，包括管体，管体的远端的一段为远端管体，上面设置有用于消融的电极，所述电极包括正电极、负电极，所述正电极和负电极分开设置，所述正电极、负电极的相对位置被设置为能够同时接触一处病灶组织。An inter-electrode discharge ablation device for ablating a lesion tissue in a human body, including a tube body, a distal end of the tube body being a distal tube body having an electrode for ablation disposed thereon, the electrode including a positive electrode a negative electrode, the positive electrode and the negative electrode are separately disposed, and the relative positions of the positive electrode and the negative electrode are set to be capable of simultaneously contacting a lesion tissue.
现有技术中，对病灶组织的消融是通过电极加上背极板来消融，需要把背极板与人体接触，通常是贴合在皮肤上，然后把电极伸入到人体内，接触病灶组织，通电，使电极-人体-背极板间形成电流，产生射频能量，这种消融方式较复杂，同时由于电流需要穿过整个人体，所以还会对其他健康的组织造成一定
的破坏，增加病人的负担，甚至带来病痛；In the prior art, the ablation of the lesion tissue is ablated by the electrode plus the back plate, and the back plate needs to be in contact with the human body, usually attached to the skin, and then the electrode is inserted into the human body to contact the lesion tissue. , energization, so that the electrode-body-back plate forms a current between the plates, generates RF energy, this ablation method is more complicated, and because the current needs to pass through the whole body, it will also cause certain other healthy tissues.
The destruction, increase the burden on the patient, and even bring sickness;
而本申请在远端管体上同时设置分开的正电极和负电极，正电极和负电极对着相互放电，在其中间会产生高的射频能量，射频能量用于进行对组织消融，使消融治疗更具针对性和可控性，并且不再需要像现有技术那样，电流穿过整个身体造成伤害，只需形成正电极-病灶组织-负电极的电流，形成射频能量，相比现有技术降低了消融过程对人体的伤害。In the present application, a separate positive electrode and a negative electrode are simultaneously disposed on the distal tube body, and the positive electrode and the negative electrode are mutually discharged, and high RF energy is generated in the middle, and the RF energy is used for tissue ablation and ablation. The treatment is more targeted and controllable, and there is no longer a need for current to flow through the entire body as in the prior art, causing damage to the positive electrode-disease tissue-negative electrode to form RF energy, compared to existing Technology reduces the damage to the human body during the ablation process.
此外，临床上某些病例是间歇性的发作，因此在治疗时需进行刺激诱发疾病，在消融治疗时为精确找到病灶部位，目前，对于这类病灶组织的寻找，需要在疾病发作时才能够准确的进行定位，但是，这类间歇性疾病，其发病时间难以控制，多以药物诱发，增加病人痛苦，虽然可以采用电击的方式诱发疾病，但是现有医疗器械并没有相关设备，并且，也难以采用现有消融技术中的消融导管进行诱发刺激，因为电流经过背极板传输至消融导管所经过的人体组织面积太大，即使疾病被诱发，也难以确定病灶组织的具体部位，目前临床并没有采用这种方向诱发寻找病灶组织。而本方案中向人体组织施加电流的两个导电部件均设置在消融导管上，电流经过的人体组织面积小，容易准确确定病灶组织的具***置，因此，能够诱发疾病并帮助寻找病灶组织，能够更加准确快速的判定病灶组织的位置，能够节省消融手术时间，提高消融效率，从而能够减轻病人痛苦，降低手术风险。In addition, some cases in the clinic are intermittent episodes, so it is necessary to carry out stimulation-induced diseases during treatment, and to accurately find the lesions during ablation treatment. At present, the search for such lesions needs to be able to occur at the onset of the disease. Accurate positioning, however, such intermittent disease, its onset time is difficult to control, mostly induced by drugs, increasing patient suffering, although the disease can be induced by electric shock, but the existing medical devices have no related equipment, and It is difficult to use the ablation catheter in the existing ablation technique to induce stimulation, because the area of human tissue passing through the back plate to the ablation catheter is too large, and even if the disease is induced, it is difficult to determine the specific part of the lesion tissue. This direction was not used to induce the search for lesion tissue. In the present solution, two conductive members that apply current to the human tissue are disposed on the ablation catheter, and the area of the human body through which the current passes is small, and it is easy to accurately determine the specific location of the lesion tissue, thereby inducing disease and helping to find the lesion tissue. More accurate and rapid determination of the location of the lesion tissue can save the ablation operation time and improve the ablation efficiency, thereby reducing the patient's pain and reducing the risk of surgery.
在上述方案的基础上，可能还存在冷却效果不好的问题。人体组织与导电部件贴合处的温度比其他部位要高，而如果采用消融液对消融的人体组织冷却效果不好，可能至少消融温度过高，从而消融深度过深，甚至刺穿人体组织，引发医疗事故。为此，至少一个所述导电部件设置有与所述溶液腔相通的溶液孔，使消融液通过溶液腔和溶液孔能够传输至既定消融的人体组织，如此，消融液可以冷却与导电部件贴合处的人体组织，冷却效果更好，消融温度更容易控制，笑容效果更好。
On the basis of the above scheme, there may be a problem that the cooling effect is not good. The temperature at which the human tissue and the conductive member are attached is higher than other parts. If the ablative solution is used to cool the ablated human tissue, the ablation temperature may be too high, and the ablation depth may be too deep, even piercing the human tissue. Cause a medical accident. To this end, at least one of the conductive members is provided with a solution hole communicating with the solution chamber, so that the ablation liquid can be transmitted to the body tissue of a predetermined ablation through the solution chamber and the solution hole, so that the ablation liquid can be cooled and adhered to the conductive member. At the body tissue, the cooling effect is better, the ablation temperature is easier to control, and the smile effect is better.
作为优选，在所述消融导管伸入人体组织的端部的端面中央设置有一个所述导电部件，也就是说，在垂直于管体轴线的投影面上，所述管体的投影为圆，所述管体投影的中央设置有一个导电部件，特别的，所述导电部件设置有所述溶液孔,所述导电部件之间相互绝缘，如此，消融液灌输在消融的中心区域，能够取得更好的消融效果，冷却效果好。Preferably, a conductive member is disposed at a center of an end surface of the end portion of the ablation catheter that protrudes into the body tissue, that is, the projection of the tube body is a circle on a projection surface perpendicular to the axis of the tube body. A conductive member is disposed at a center of the tube projection. In particular, the conductive member is provided with the solution hole, and the conductive members are insulated from each other. Thus, the ablating solution is infused in the central region of the ablation, thereby achieving more Good ablation effect, good cooling effect.
作为本发明的优选方案，所述正电极、负电极均设置在远端管体的远端，均设置在端部，对病灶组织的针对性更强。As a preferred embodiment of the present invention, the positive electrode and the negative electrode are both disposed at the distal end of the distal tube body, and are disposed at the end portion, which is more targeted to the lesion tissue.
作为本发明的优选方案，所述正电极、负电极之间设置有绝缘构件，正电极和负电极中间由绝缘构件进行绝对隔离，使正电极、负电极之间隔离效果更好，正电极与负电极正对着相互放电，在其中间会产生高的射频能量，该射频能量用于进行对组织消融，消融效果相比不使用绝缘构件，效果更好(虽然正负电极不接触也能实现绝缘)。As a preferred embodiment of the present invention, an insulating member is disposed between the positive electrode and the negative electrode, and the positive electrode and the negative electrode are absolutely isolated by an insulating member, so that the positive electrode and the negative electrode have better isolation effect, and the positive electrode and the positive electrode are The negative electrodes are facing each other and discharge high RF energy in the middle. The RF energy is used for tissue ablation. The ablation effect is better than the use of insulating members (although positive and negative electrodes can be achieved without contact). insulation).
作为本发明的优选方案，所述远端管体内部设置有能够灌注液体的灌注管，其与远端管体表面连通，用以在进行放电消融时灌注液体以冷却组织表面以获得更高的消融深度。As a preferred embodiment of the present invention, the distal tube body is internally provided with a perfusion tube capable of perfusion liquid, which communicates with the surface of the distal tube body for infusing liquid during cooling ablation to cool the tissue surface to obtain higher Ablation depth.
作为本发明的优选方案，所述绝缘构件外壁设置有与所述灌注管连通的灌注孔。As a preferred aspect of the invention, the outer wall of the insulating member is provided with a filling hole communicating with the pouring tube.
作为本发明的优选方案，所述正电极和负电极下方设置有温度传感器，用以适时测量组织表面温度为医生在治疗时提供安全性保证，避免因温度过高而损伤病人健康组织。As a preferred embodiment of the present invention, a temperature sensor is disposed under the positive electrode and the negative electrode for timely measuring the surface temperature of the tissue to provide a safety guarantee for the doctor during treatment, and to avoid damage to the healthy tissue of the patient due to excessive temperature.
作为本发明的优选方案，所述温度传感器焊接于正电极和负电极内，直接测量电极的温度，相比较于设置在下方的方式，虽然制造工艺更难，但是对温
度的检测更准确，使消融过程更安全。As a preferred embodiment of the present invention, the temperature sensor is soldered in the positive electrode and the negative electrode to directly measure the temperature of the electrode, and the manufacturing process is more difficult, but the temperature is compared to the way of being disposed below.
The degree of detection is more accurate, making the ablation process safer.
作为本发明的优选方案，所述远端管体后端设置有压力传感器，其能够测量来自所述组织的压力，当正电极、负电极在接触组织后会产生形变(组织的弹力对电极所产生的反向的推力)，该形变会令后端的压力传感器同样产生形变，使压力传感器检测到压力，为医生治疗时提供科学的是否贴靠好的依据，以提升消融治疗的安全可靠性。As a preferred embodiment of the present invention, the distal end of the distal tube body is provided with a pressure sensor capable of measuring the pressure from the tissue, and the positive electrode and the negative electrode are deformed after contacting the tissue (the elastic force of the tissue is opposite to the electrode The resulting reverse thrust), which causes the pressure sensor at the back end to deform as well, allowing the pressure sensor to detect pressure and provide a scientific basis for the doctor to improve the safety and reliability of the ablation treatment.
作为本发明的优选方案，所述电极间能发放射频电流，该射频电流能够刺激病灶用于诱发疾病。As a preferred aspect of the invention, the electrodes are capable of delivering a radio frequency current that is capable of stimulating the lesion for inducing a disease.
该优选方案通过电击刺激人体组织从而诱发疾病以辅助需找需要消融的组织部位的位置，也就是说在采用现有技术确定既定消融组织的位置时，采用本方案的步骤进行辅助，向人体组织施加电流的两个导电部件均设置在消融导管上，电流经过的人体组织面积小，容易准确确定病灶组织的具***置，因此，能够诱发疾病并帮助寻找病灶组织，能够更加准确快速的判定病灶组织的位置，能够节省消融手术时间，提高消融效率，从而能够减轻病人痛苦，降低手术风险。The preferred solution stimulates human tissue by electric shock to induce disease to assist in finding the position of the tissue site that needs to be ablated, that is, when determining the position of the predetermined ablation tissue by using the prior art, the steps of the present scheme are used to assist the body tissue. The two conductive members that apply current are disposed on the ablation catheter. The area of the human body through which the current passes is small, and it is easy to accurately determine the specific location of the lesion tissue. Therefore, the disease can be induced and the lesion tissue can be searched for, and the lesion tissue can be more accurately and quickly determined. The position can save the ablation operation time and improve the ablation efficiency, thereby reducing the patient's pain and reducing the risk of surgery.
作为本发明的优选方案，电极能做为标测电极，标测电极头端的位置。As a preferred embodiment of the invention, the electrode can be used as a mapping electrode to mark the position of the tip end of the electrode.
本发明还提供了一种采用上述消融装置的进行浅表消融的方法，包括以下步骤：The present invention also provides a method for performing superficial ablation using the ablation device described above, comprising the steps of:
(1).所述远端管体的电极达到病灶组织附近，电极间发放刺激，诱发疾病，(1) The electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.
(2).所述远端管体的电极同步标测确定病灶组织的位置，(2) The electrode synchronous mapping of the distal tube body determines the location of the lesion tissue,
(3).所述远端管体直接贴靠标测确定的病灶组织，
(3) The distal tube body directly abuts the lesion tissue determined by the mapping,
(4).确定消融该组织所需的射频能量，(4). Determine the RF energy required to ablate the tissue,
(5).启动射频设备使射频设备发出射频能量进行电极间消融，(5). Start the RF device to enable the RF device to emit RF energy for inter-electrode ablation.
(6).消融结束，关闭射频设备，(6). After the ablation is finished, the RF device is turned off.
(7).所述远端管体的电极间发放刺激，诱发疾病，若标测电极不能检测到异常的电信号，即判定为消融成功。(7) The stimulation is induced between the electrodes of the distal tube body to induce disease, and if the abnormality electrical signal cannot be detected by the mapping electrode, it is determined that the ablation is successful.
本发明又提供了一种采用上述消融装置的进行深度消融的方法，包括以下步骤：The invention further provides a method for performing deep ablation using the ablation device described above, comprising the steps of:
(1).所述远端管体的电极达到病灶组织附近，电极间发放刺激，诱发疾病，(1) The electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.
(2).所述远端管体的电极同步标测确定病灶组织的位置，(2) The electrode synchronous mapping of the distal tube body determines the location of the lesion tissue,
(3).所述远端管体直接贴靠标测确定的病灶组织，(3) The distal tube body directly abuts the lesion tissue determined by the mapping,
(4).在人体背部设置背极板，使电极-人体-背极板形成回路，(4). Set the back plate on the back of the human body to make the electrode-body-back plate form a loop.
(5).确定消融该组织所需的射频能量，(5). Determine the RF energy required to ablate the tissue,
(6).开启灌注，使灌注液体能直接到达病灶组织表面，(6). Turn on the perfusion so that the perfusion fluid can reach the surface of the lesion directly.
(7).启动射频设备使射频设备发出射频能量进行电极消融，电极对背极板放电消融，(7). Start the RF device so that the RF device emits RF energy for electrode ablation, and the electrode discharges to the back plate.
(8).消融结束，关闭射频设备，(8). After the ablation is finished, the RF device is turned off.
(9).导管远端电极间发放刺激，诱发疾病，若标测电极不能检测到异常的电信号，即判定为消融成功。(9). The stimulation is induced between the distal electrodes of the catheter, and the disease is induced. If the abnormality is not detected by the mapping electrode, it is determined that the ablation is successful.
与现有技术相比，本发明的有益效果：Compared with the prior art, the beneficial effects of the present invention:
使消融治疗更具针对性和可控性，并且降低对人体伤害。Make ablation treatment more targeted and controllable, and reduce harm to the human body.
图1为本发明消融示意图；Figure 1 is a schematic view of ablation of the present invention;
图2为本发明结构示意图；2 is a schematic structural view of the present invention;
图3为本发明剖视图；Figure 3 is a cross-sectional view of the present invention;
图4为本发明局部剖视图。Figure 4 is a partial cross-sectional view of the present invention.
图5主体管剖视图Figure 5 is a cross-sectional view of the main tube
图6装置整体示意图Figure 6 shows the overall schematic of the device
图中标记：1-电极A，2-电极B，3-电极C，4-远端管体，6-人体组织，7-灌注管，8-正电极导线，9-负电极导线，10-温度传感器，11-压力传感器，12-牵引钢丝13-主体管14-手柄结构15-鲁尔接头16-连接器31-灌注孔。Marked in the figure: 1-electrode A, 2-electrode B, 3-electrode C, 4-distal tube, 6-human tissue, 7-infusion tube, 8-positive electrode lead, 9-negative electrode lead, 10- Temperature sensor, 11-pressure sensor, 12-traction wire 13 - body tube 14 - handle structure 15 - luer connector 16 - connector 31 - perfusion hole.
下面结合实施例及具体实施方式对本发明作进一步的详细描述。但不应将此理解为本发明上述主题的范围仅限于以下的实施例，凡基于本发明内容所实现的技术均属于本发明的范围。The present invention will be further described in detail below with reference to the embodiments and specific embodiments. However, the scope of the above-mentioned subject matter of the present invention should not be construed as being limited to the following embodiments, and the technology implemented based on the present invention is within the scope of the present invention.
实施例1Example 1
如图1-4，一种极间放电的消融装置，其用于消融人体内的病灶组织(如图1，图中阴影部分为人体组织6，即需要消融的病灶组织)，包括管体，管体的远端的一段为远端管体4，上面设置有用于消融的电极，如图2，所述电极包括正电极1、负电极2，所述正电极1、负电极2均设置在远端管体4的远端，所述正电极1和负电极2分开设置，所述正电极1、负电极2之间设置有绝缘构件3(为塑胶材料，如有良好生物相容性的聚碳酸酯等)，所述正电极1、负电极2
的相对位置被设置为能够同时接触一处病灶组织，所述正电极1和负电极2上分别连接有正电极导线8和负电极导线9，用于给电极供能，传输射频能量，正电极导线8和负电极导线9设置在远端管体4内部并沿管体布置，最终连接电源，本实施例中，正电极1和负电极2相对称地设置在远端管体4的远端的头部。As shown in FIG. 1-4, an inter-electrode discharge ablation device is used for ablating a lesion tissue in a human body (as shown in FIG. 1, the shaded portion is a human tissue 6, that is, a lesion tissue requiring ablation), including a tube body, A segment of the distal end of the tubular body is a distal tubular body 4 on which an electrode for ablation is disposed. As shown in FIG. 2, the electrode includes a positive electrode 1 and a negative electrode 2, and the positive electrode 1 and the negative electrode 2 are disposed at The distal end of the distal tube body 4, the positive electrode 1 and the negative electrode 2 are separately disposed, and the insulating member 3 is disposed between the positive electrode 1 and the negative electrode 2 (for plastic materials, if there is good biocompatibility Polycarbonate, etc., the positive electrode 1, the negative electrode 2
The relative position is set to be able to simultaneously contact a lesion tissue, and the positive electrode 1 and the negative electrode 2 are respectively connected with a positive electrode lead 8 and a negative electrode lead 9 for energizing the electrode, transmitting radio frequency energy, and a positive electrode. The wire 8 and the negative electrode wire 9 are disposed inside the distal tube body 4 and arranged along the tube body, and finally connected to the power source. In this embodiment, the positive electrode 1 and the negative electrode 2 are symmetrically disposed at the distal end of the distal tube body 4. The head.
如图2-3，所述远端管体4内部设置有能够灌注液体的灌注管7，其与远端管体4表面连通，所述绝缘构件3外壁设置有与所述灌注管7连通的灌注孔31，该灌注孔31布置在正电极1、负电极2之间，成一排布置，灌注孔31布置路径位于正电极1、负电极2的对称平面上，消融时，这种对称的结构使正电极1、负电极2对组织的接触更好，位于两个电极中间的灌注孔31流出液体，能够更好地对电极周围的组织进行冷却。As shown in FIG. 2-3, the distal tube body 4 is internally provided with a perfusion tube 7 capable of perfusion liquid, which communicates with the surface of the distal tube body 4. The outer wall of the insulating member 3 is provided with a communication with the perfusion tube 7. a perfusion hole 31, which is arranged between the positive electrode 1 and the negative electrode 2, arranged in a row, the arrangement path of the perfusion hole 31 is located on the symmetry plane of the positive electrode 1 and the negative electrode 2, and the symmetrical structure is formed during ablation The positive electrode 1 and the negative electrode 2 are better contacted to the tissue, and the perfusion hole 31 located between the two electrodes flows out of the liquid, so that the tissue surrounding the electrode can be better cooled.
所述远端管体4端部设置有凹槽，所述正电极1、负电极2上设置有与所述凹槽配合的凸起，所述正电极1、负电极2通过所述凸起安装在远端管体4的端部，所述正电极1和负电极2下方设置有温度传感器10，其焊接于正电极1和负电极2内，本实施例中温度传感器10为2根热电偶导线焊接而成，所述正电极导线8和负电极导线9从远端管体4内通过所述凹槽连接到正电极1、负电极2上，这种结构更方便安装，加工更简单。The end of the distal tube 4 is provided with a groove, and the positive electrode 1 and the negative electrode 2 are provided with protrusions that cooperate with the grooves, and the positive electrode 1 and the negative electrode 2 pass through the protrusions. Mounted at the end of the distal tube body 4, under the positive electrode 1 and the negative electrode 2, a temperature sensor 10 is disposed, which is soldered in the positive electrode 1 and the negative electrode 2. In this embodiment, the temperature sensor 10 is 2 thermoelectrics. The even lead wire is welded, and the positive electrode lead 8 and the negative electrode lead 9 are connected from the distal tube body 4 through the groove to the positive electrode 1 and the negative electrode 2. This structure is more convenient to install and is easier to process. .
如图4，所述远端管体4后端设置有压力传感器11，其能够测量来自所述组织的压力，所述压力传感器11可为压阻传感器或压电传感器，所述压力传感器11不局限于本专利实施例中的方式，压力传感器11还可以包括利用磁学、光学、超声波进行测试的压力传感器11。As shown in FIG. 4, the rear end of the distal tube body 4 is provided with a pressure sensor 11 capable of measuring pressure from the tissue, and the pressure sensor 11 may be a piezoresistive sensor or a piezoelectric sensor, and the pressure sensor 11 is not Limited to the manner in the embodiments of the present patent, the pressure sensor 11 may further include a pressure sensor 11 that is tested using magnetic, optical, and ultrasonic waves.
鲁尔接头15连接灌注管8，用于输送灌注液体的通道。连接器16用于与设
备进行连接。The luer connector 15 is connected to the perfusion tube 8 for delivering a channel for perfusion of liquid. Connector 16 for use with
Be prepared to connect.
本发明的实施例还可以提供一种使用上述电极间发放射频电流，利用发射的射频电流刺激病灶用于诱发疾病的消融装置。使用者可以根据经验或预定设置调节射频电流的大小、周期，用于诱发可能存在疾病的病灶。Embodiments of the present invention may also provide an ablation device that uses a radio frequency current between the electrodes to stimulate a lesion to induce a disease using the emitted radio frequency current. The user can adjust the magnitude and period of the RF current according to experience or predetermined settings to induce lesions that may be present.
本发明的实施例，一种采用上述消融装置的进行浅表消融的方法，包括以下步骤：An embodiment of the present invention, a method for performing superficial ablation using the ablation device described above, comprising the steps of:
(1).所述远端管体的电极达到病灶组织附近，电极间发放刺激，诱发疾病，(1) The electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.
(2).所述远端管体的电极同步标测确定病灶组织的位置，(2) The electrode synchronous mapping of the distal tube body determines the location of the lesion tissue,
(3).所述远端管体直接贴靠标测确定的病灶组织，(3) The distal tube body directly abuts the lesion tissue determined by the mapping,
(4).确定消融该组织所需的射频能量，(4). Determine the RF energy required to ablate the tissue,
(5).启动射频设备使射频设备发出射频能量进行电极间消融，(5). Start the RF device to enable the RF device to emit RF energy for inter-electrode ablation.
(6).消融结束，关闭射频设备，(6). After the ablation is finished, the RF device is turned off.
(7).所述远端管体的电极间发放刺激，诱发疾病，若标测电极不能检测到异常的电信号，即判定为消融成功。(7) The stimulation is induced between the electrodes of the distal tube body to induce disease, and if the abnormality electrical signal cannot be detected by the mapping electrode, it is determined that the ablation is successful.
与上一方法实施例类似的，本发明又提供了一种采用上述消融装置的配合背极板进行深度消融的方法，包括以下步骤：Similar to the previous method embodiment, the present invention further provides a method for deep ablation using the backing plate of the above ablation device, comprising the following steps:
(1).所述远端管体的电极达到病灶组织附近，电极间发放刺激，诱发疾病，(1) The electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.
(2).所述远端管体的电极同步标测确定病灶组织的位置，(2) The electrode synchronous mapping of the distal tube body determines the location of the lesion tissue,
(3).所述远端管体直接贴靠标测确定的病灶组织，(3) The distal tube body directly abuts the lesion tissue determined by the mapping,
(4).在人体背部设置背极板，使电极-人体-背极板形成回路，(4). Set the back plate on the back of the human body to make the electrode-body-back plate form a loop.
(5).确定消融该组织所需的射频能量，
(5). Determine the RF energy required to ablate the tissue,
(6).开启灌注，使灌注液体能直接到达病灶组织表面，(6). Turn on the perfusion so that the perfusion fluid can reach the surface of the lesion directly.
(7).启动射频设备使射频设备发出射频能量进行电极消融，电极对背极板放电消融，(7). Start the RF device so that the RF device emits RF energy for electrode ablation, and the electrode discharges to the back plate.
(8).消融结束，关闭射频设备，(8). After the ablation is finished, the RF device is turned off.
(9).导管远端电极间发放刺激，诱发疾病，若标测电极不能检测到异常的电信号，即判定为消融成功。
(9). The stimulation is induced between the distal electrodes of the catheter, and the disease is induced. If the abnormality is not detected by the mapping electrode, it is determined that the ablation is successful.
Claims (10)
- 一种极间放电的消融装置，其用于消融人体内的病灶组织，包括管体，管体的远端的一段为远端管体，上面设置有用于消融的电极，所述消融装置特征在于，An inter-electrode discharge ablation device for ablating a lesion tissue in a human body, comprising a tube body, a distal end of the tube body being a distal tube body provided with an electrode for ablation, the ablation device being characterized by ,所述电极具有标测功能，同时电极之间能发放刺激以寻找病灶组织，The electrodes have a mapping function, and at the same time, stimulation can be issued between the electrodes to find the lesion tissue.所述电极间分开设置，所述电极的相对位置被设置为能够同时接触一处病灶组织。The electrodes are disposed separately, and the relative positions of the electrodes are set to be capable of simultaneously contacting a lesion tissue.
- 根据权利要求1所述的一种极间放电的消融装置，其特征在于，所述电极均设置在远端管体的远端。An interelectrode discharge ablation device according to claim 1, wherein said electrodes are disposed at a distal end of the distal tube body.
- 根据权利要求2所述的一种极间放电的消融装置，其特征在于，所述电极之间设置有绝缘构件。An ablation discharge ablation device according to claim 2, wherein an insulating member is disposed between said electrodes.
- 根据权利要求3所述的一种极间放电的消融装置，其特征在于，所述远端管体内部设置有能够灌注液体的灌注管，其与远端管体表面连通。The interelectrode discharge ablation device according to claim 3, wherein the distal tube body is internally provided with a perfusion tube capable of perfusion liquid, which is in communication with the surface of the distal tube body.
- 根据权利要求4所述的一种极间放电的消融装置，其特征在于，所述电极外壁设置有与所述灌注管连通的灌注孔。An ablation discharge ablation device according to claim 4, wherein said electrode outer wall is provided with a perfusion hole in communication with said perfusion tube.
- 根据权利要求5所述的一种极间放电的消融装置，其特征在于，所述电极下方设置有温度传感器。An ablation discharge ablation device according to claim 5, wherein a temperature sensor is disposed under the electrode.
- 根据权利要求1所述的一种极间放电的消融装置，其中，所述电极间能发放射频电流，该射频电流能够刺激病灶用于诱发疾病。An interelectrode discharge ablation device according to claim 1, wherein said electrodes are capable of emitting a radio frequency current which is capable of stimulating the lesion for inducing a disease.
- 根据权利要求1所述的一种极间放电的消融装置，电极能做为标测电极，标测电极头端的位置。 An ablation discharge ablation device according to claim 1, wherein the electrode can be used as a mapping electrode to mark the position of the tip end of the electrode.
- 一种采用权利要求1所述消融装置的进行浅表消融的方法，包括以下步骤：A method of performing superficial ablation using the ablation device of claim 1 comprising the steps of:(1).所述远端管体的电极达到病灶组织附近，电极间发放刺激，诱发疾病，(1) The electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.(2).所述远端管体的电极同步标测确定病灶组织的位置，(2) The electrode synchronous mapping of the distal tube body determines the location of the lesion tissue,(3).所述远端管体直接贴靠标测确定的病灶组织，(3) The distal tube body directly abuts the lesion tissue determined by the mapping,(4).确定消融该组织所需的射频能量，(4). Determine the RF energy required to ablate the tissue,(5).启动射频设备使射频设备发出射频能量进行电极间消融，(5). Start the RF device to enable the RF device to emit RF energy for inter-electrode ablation.(6).消融结束，关闭射频设备，(6). After the ablation is finished, the RF device is turned off.(7).所述远端管体的电极间发放刺激，诱发疾病，若标测电极不能检测到异常的电信号，即判定为消融成功。(7) The stimulation is induced between the electrodes of the distal tube body to induce disease, and if the abnormality electrical signal cannot be detected by the mapping electrode, it is determined that the ablation is successful.
- 一种采用权利要求1所述消融装置的进行深度消融的方法，包括以下步骤：A method of performing deep ablation using the ablation device of claim 1 comprising the steps of:(1).所述远端管体的电极达到病灶组织附近，电极间发放刺激，诱发疾病，(1) The electrode of the distal tube reaches the vicinity of the lesion tissue, and the electrodes are stimulated to induce disease.(2).所述远端管体的电极同步标测确定病灶组织的位置，(2) The electrode synchronous mapping of the distal tube body determines the location of the lesion tissue,(3).所述远端管体直接贴靠标测确定的病灶组织，(3) The distal tube body directly abuts the lesion tissue determined by the mapping,(4).在人体背部设置背极板，使电极-人体-背极板形成回路，(4). Set the back plate on the back of the human body to make the electrode-body-back plate form a loop.(5).确定消融该组织所需的射频能量，(5). Determine the RF energy required to ablate the tissue,(6).开启灌注，使灌注液体能直接到达病灶组织表面，(6). Turn on the perfusion so that the perfusion fluid can reach the surface of the lesion directly.(7).启动射频设备使射频设备发出射频能量进行电极消融，电极对背极板放电消融， (7). Start the RF device so that the RF device emits RF energy for electrode ablation, and the electrode discharges to the back plate.(8).消融结束，关闭射频设备，(8). After the ablation is finished, the RF device is turned off.(9).导管远端电极间发放刺激，诱发疾病，若标测电极不能检测到异常的电信号，即判定为消融成功。 (9). The stimulation is induced between the distal electrodes of the catheter, and the disease is induced. If the abnormality is not detected by the mapping electrode, it is determined that the ablation is successful.
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