CN113855173A

CN113855173A - Electrode catheter system

Info

Publication number: CN113855173A
Application number: CN202010610369.XA
Authority: CN
Inventors: 丁毅寿; 张喜博; 张昱昕; 钱俊; 黄晶; 蒲忠杰
Original assignee: Shanghai Shape Memory Alloy Material Co Ltd
Current assignee: Shanghai Shape Memory Alloy Material Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-12-31

Abstract

The invention provides an electrode catheter system, which comprises an interventional catheter capable of being intervened in a renal artery vessel on one side, a pressure sensor capable of being intervened in the arterial vessel and a data processing module, wherein an electrode element capable of releasing an electric signal towards the inner wall of the renal artery vessel is arranged on the interventional catheter, and the data processing module is connected with the pressure sensor. The electrode element releases an electric signal towards the inner wall of a renal artery vessel, then the blood pressure change is monitored in the renal artery vessel at the other side through the pressure sensor, the data processing module processes monitoring data of the pressure sensor and judges the blood pressure change, the activity of nerves is judged by detecting signals such as the blood pressure of a human body, and therefore a patient with overactive sympathetic nerves is screened out, the operation effect of the denervation operation can be evaluated before or after the operation, and whether ultrasonic ablation needs to be carried out again or not is determined.

Description

Electrode catheter system

Technical Field

The invention relates to the technical field of interventional therapy, in particular to an electrode catheter system.

Background

The high incidence and prevalence of hypertension has become one of the major health risks to humans, the most common chronic disease in humans worldwide. At present, the prevalence rate of refractory hypertension is not accurately counted, but a plurality of clinical researches suggest that the patients account for 20-30% of hypertension patients and belong to common chronic diseases. Sympathetic hyperexcitability has long been recognized as a fundamental link in the development of hypertension. Numerous animal experiments have demonstrated the effect of the sympathetic nervous system on blood pressure. Clinical studies have also found that the extent of sympathetic nerve excitation is positively correlated with the blood pressure level of the patient. Among these, the renal sympathetic nervous system, particularly the renal sympathetic efferent and afferent nerves closest to the renal artery wall, plays a crucial role in the induction and maintenance of systemic hypertension.

Multiple clinical studies show that: the percutaneous catheter renal sympathetic nerve radio frequency ablation is simple to operate, has few complications, can remarkably and continuously reduce the blood pressure of a patient with refractory hypertension, and is a novel, simple and effective method for treating the refractory hypertension. Although a good idea is provided for treating intractable hypertension based on the radio frequency ablation catheter, and the safety and effectiveness of treatment are preliminarily verified, the nerve activity of a patient needs to be screened, if the nerve activity of the onset of hypertension is not enough, the operation cannot be adopted for treatment, and after the operation is performed in the prior art, the ultrasonic ablation catheter system is difficult to evaluate the operation effect of the denervation operation before and after the operation, and is difficult to judge whether to perform ablation again according to the condition of the patient.

Disclosure of Invention

The invention aims to provide an electrode catheter system to solve the technical problem that the assessment of the preoperative and postoperative operation effects is difficult in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: an electrode catheter system is provided, which comprises an interventional catheter capable of being introduced into one side of a renal artery blood vessel and a pressure sensor capable of being introduced into the artery blood vessel; the interventional catheter is provided with an electrode element which can release an electric signal towards the inner wall of the renal artery vessel; the pressure sensor is connected with the data processing module.

Furthermore, the system also comprises an electrocardio detection module for monitoring heartbeat, and the electrocardio detection module is connected with the data processing module.

Further, the pressure sensor is placed in the renal artery vessel on the other side.

Furthermore, the electrode element is made of elastic metal materials, and the electrode element has a first state of being accommodated in the interventional catheter and a second state of being attached to the inner wall of the renal artery blood vessel.

Furthermore, intervene and be equipped with the control silk in the pipe and hold the first seal wire chamber of control silk, electrode component with the control silk is connected, the control silk is in under the effect of external force first seal wire intracavity slides.

Further, the electrode element is preformed into an arc shape, and two ends of the electrode element are fixedly connected with the control wire.

Further, the electrode element is preformed into a spiral ring shape, and one end of the electrode element is fixedly connected with the control wire.

Furthermore, an ablation element is further arranged on the interventional catheter, the ablation element is located at the far end of the interventional catheter, and the electrode element is located at the near end of the ablation element.

Further, the ablation element includes a balloon secured to the distal end of the interventional catheter and an ultrasound transducer disposed within the balloon.

Furthermore, a second wire guide cavity and a lead are arranged in the interventional catheter, the second wire guide cavity is located on the outer edge in the balloon and provided with an energy transducer placing table, the ultrasonic transducer is fixed on the energy transducer placing table, and the ultrasonic transducer is connected with the lead.

Furthermore, a water inlet cavity and a water outlet cavity are also arranged in the interventional catheter, and the water inlet cavity and the water outlet cavity are communicated with the balloon.

Furthermore, the near end of the interventional catheter is also provided with a handle, and the handle is provided with a control button for controlling the electrode element.

The electrode catheter system provided by the invention has the beneficial effects that:

1. the electrode element is arranged in a renal artery blood vessel, the electrode element releases an electric signal towards the inner wall of the renal artery blood vessel, then a pressure sensor is arranged in other artery blood vessels except the side renal artery blood vessel, the blood pressure change is monitored through the pressure sensor, the monitoring data of the pressure sensor is processed and judged through the data processing module, the activity degree of nerves is judged through detecting the blood pressure signal of a human body, and therefore patients with overactive sympathetic nerves are screened out, the operation effect of denervation can be evaluated before or after an operation, and whether ultrasonic ablation needs to be carried out again or not is determined.

2. The heart rate of the human body is monitored through the electrocardio monitoring module, the change of the heart rate of the human body after the electrode element is electrified is combined with the change of the blood pressure, the activity of the nerve is jointly judged, and the monitoring accuracy is higher.

3. Electrode element adopts the elastic material to make, can accomodate in the inside of interveneeing the pipe under the normality in the shrink or opening of human external control element, arranges human inside back in, and the laminating that can be elastic is in the vascular size of inside adaptation of blood vessel, and its control mode is simple, and can be brought into to internal by interveneeing the pipe, and the damage that causes the human body is less.

4. Set up at the front end of interveneeing the pipe and melt the component, can combine together melting and detection, only need intervene a pipe and both can realize screening before the art, supersound ablation and postoperative detection to postoperative detects the denervation unsuccessful and can also continuously carry out the supersound ablation, and convenient to use just probably causes the damage less to the human body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of an electrode catheter system according to embodiment 1 of the present invention, in which an electrode element extends out of an interventional catheter;

fig. 2 is a schematic structural view of an electrode catheter system according to embodiment 1 of the present invention, in which an electrode element is accommodated in an interventional catheter;

FIG. 3 is a schematic structural view of an interventional catheter used in embodiment 1 of the present invention;

fig. 4 is a partially enlarged sectional view of a portion a of fig. 3;

FIG. 5 is a sectional view taken along the direction B-B in FIG. 3;

fig. 6 is a schematic structural view of an interventional catheter used in embodiment 2 of the present invention.

Description of reference numerals:

1. an interventional catheter; 2. a pressure sensor; 3. an electrocardiogram monitor; 4. a handle; 5. renal artery blood vessels; 11. an ablation element; 12. an electrode element; 13. a first guidewire lumen; 14. a second guidewire lumen; 15. A water inlet cavity; 16. a water outlet cavity; 121. controlling the filament; 111. a balloon; 112. an ultrasonic transducer; 41. A control button.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In this document, "proximal" and "distal" are relative orientations, relative positions, and relative directions of elements or actions with respect to each other from the perspective of a physician using the medical device, although "proximal" and "distal" are not limiting, but "proximal" generally refers to the end of the medical device that is near the physician during normal operation, and "distal" generally refers to the end that enters the patient's body first.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

Referring to fig. 1 and 2 together, the electrode catheter system of the present invention will now be described. Electrode catheter system, including interveneeing pipe 1, pressure sensor 2 and data processing module (not shown), intervene pipe 1 and can insert to one side renal artery blood vessel 5 in, the distal end of interveneeing pipe 1 is provided with ablation component 11, the near-end one side of ablation component 11 is provided with electrode component 12, electrode component 12 can release the signal of telecommunication towards renal artery blood vessel 5's inner wall, pressure sensor 2 that is located other arterial blood vessels 5 can real-time detection intravascular pressure, promptly for detecting blood pressure, and turn into blood pressure through the intravascular pressure that data processing module will detect, thereby can judge neural liveness through blood pressure.

The data processing module can be a data processor of a conventional blood pressure instrument in the prior art, can convert the numerical value of the pressure sensor 2 arranged in the blood vessel into a blood pressure value of a human body, can directly judge whether the blood pressure exceeds a certain threshold value, so as to draw a conclusion whether the activity of the nerve is too high, and can also directly feed back a blood pressure change value on a screen, so that an operator comprehensively draws the conclusion whether the activity of the nerve is too high by combining with a blood pressure change rule, and the situation is not limited uniquely.

Preferably, the pressure sensor 2 is placed in any vessel other than the renal artery 5 in which the interventional catheter is placed, in order to avoid that the electrode signals of the electrode elements 12 interfere with the measurement. Optimally, the pressure sensor 2 is arranged in the renal artery vessel on the other side, so that the operation is convenient and the measurement result is more accurate when the operation is performed.

Furthermore, in order to further enhance the accuracy of the detection of the nerve activity, the electrocardio monitoring module 3 can be additionally arranged, and the heart rate change monitored by the electrocardio monitoring module 3 is combined to judge the nerve activity. The electrocardio monitoring module 3 can be an electrocardio monitoring module 3 which is conventionally adopted in the prior art, the electrocardio monitoring module 3 is in communication connection with the data processing module, the heart rate detected by the electrocardio monitoring module 3 can be received through the data processing module, the data processing module can directly judge whether the heart rate exceeds a certain threshold value or not, so that the conclusion whether the activity of the nerve is too high or not is obtained, the heart rate change value can also be directly fed back on a screen, an operator comprehensively obtains the conclusion whether the activity of the nerve is too high or not by combining the change rule of the heart rate and the blood pressure, and the only limitation is not made here.

The specific judgment standard of the nerve activity is the prior art, the nerve activity is judged by detecting the blood pressure signal of a human body, auxiliary judgment can be carried out by combining information such as heart rate and the like, so that a patient with hyperactive sympathetic nerves is screened out, the operation effect of denervation can be evaluated before or after an operation, and whether ultrasonic ablation needs to be carried out again or not is determined.

The operation steps for preoperative detection for neural mapping are as follows:

s1, releasing an electric signal towards the renal artery 5 on one side by an electrode element 12;

s2, monitoring the heart rate through the electrocardiogram monitor 3, monitoring the blood pressure change in the renal artery blood vessel 5 on the other side through the pressure sensor 2, and judging the nerve activity of the patient by judging whether the heart rate and the blood pressure change reach a threshold value or not;

if the heart rate and blood pressure of the patient are lower than the threshold value, the nerve activity of the patient is insufficient, hypertension caused by overexcitation of sympathetic nerves is eliminated, and other modes are needed for treatment;

if the heart rate and blood pressure of the patient reach the threshold value, the nerve activity of the patient is strong, and the patient may be treated by ultrasonic ablation due to hypertension caused by sympathetic nerve hyperexcitation.

The following procedure is used for detecting the recovery of a patient after surgery for neural mapping:

if the change of the heart rate and the blood pressure of the patient is lower than the threshold value, the nerve activity of the patient is reduced to a standard value, the completion effect of the operation is proved to be better, and the treatment can be ended;

if the heart rate and blood pressure change of the patient still reach the threshold value, the nerve activity of the patient is still strong, the operation of the denervation operation is judged not to completely reach the effect, or the ultrasonic ablation part needs to be adjusted, and the ultrasonic ablation step is repeated until the heart rate and blood pressure change of the patient is lower than the threshold value.

By the method, the surgical effect of the denervation can be evaluated before or after the operation, and whether ultrasonic ablation needs to be carried out again is determined. The pressure sensor 2 can be a pressure sensor 2 which can be placed in a blood vessel of a human body to measure the pressure in the blood vessel in the prior art, and the electrocardio monitor 3 can also be conventional electrocardio monitoring equipment in the prior art. The pressure sensor 2 and the electrocardiograph monitor 3 may be connected to a controller, and the detected results may be processed and analyzed by the controller, or the detected values may be displayed separately and judged by the operator according to the detected values, which is not limited herein.

Further, referring to fig. 3 to fig. 5, as an embodiment of the electrode catheter system provided by the present invention, the electrode element 12 is made of an elastic metal material, and the electrode element 12 can be accommodated in the interventional catheter 1 under the driving of the control wire 121, or can be attached to the inner wall of the renal artery 5 under the driving of the control wire 121. Wherein control silk 121 sets up in the inside of interveneeing catheter 1, and intervene catheter 1 and be multicavity catheter, intervene catheter 1 inside be provided with and be used for holding control silk 121's first guide wire chamber 13, control silk 121 can slide in first guide wire chamber 13. Of course, according to practical situations and specific needs, in other embodiments of the present invention, the electrode element 12 may be made of other elastic conductive materials, such as conductive foam, etc., and is not limited herein.

Wherein, handle 4 is located the near-end of interveneeing pipe 1, can make things convenient for the operator to hold to intervene pipe 1 and control. The handle 4 is provided with a control button 41, the control button 41 can control the extension and retraction of the control wire 121, one end of the control wire 121 enters the renal artery 5 through the first guide wire cavity 13, and the other end of the control wire 121 can be connected to the external handle 4 through the interventional catheter 1, so that the control wire 121 can be controlled externally, and then the retraction and release of the electrode element 12 are controlled. The control button 41 can control the control wire 121 to move along the length direction of the interventional catheter 1, and can also control the control wire 121 to rotate along the circumferential direction of the interventional catheter 1.

For the convenience of the operator, the handle 4 may be further provided with other control buttons (not shown), such as a control button for controlling the power on/off of the electrode element 12 or the ablation element 11, which can be connected to and control the power on/off of the lead.

As a specific embodiment of the electrode catheter system provided by the present invention, an electrode wire is generally directly adopted for the electrode element 12, the electrode wire is preformed into an arc shape or a circular shape, two ends of the electrode wire are free ends, two ends of the electrode wire are both directly and fixedly connected with the control wire 121 or integrally formed, the electrode wire can move along the length direction of the interventional catheter 1 under the driving of the control wire 121, so that the electrode wire can move in the interventional catheter 1, and the electrode element 12 is compressed and contained in the interventional catheter 1 before entering a predetermined position, thereby avoiding causing additional damage; after entering the preset position, the control wire 121 drives the electrode element 12 to move towards the far end, and at the moment, the electrode element 12 can be expanded and gradually abutted against the inner wall of the blood vessel; after the operation is completed, the control wire 121 drives the electrode element 12 to move towards the proximal end, and at this time, the electrode element 12 can be retracted and accommodated inside the interventional catheter 1 again. Of course, according to practical conditions and specific requirements, in other embodiments of the present invention, the electrode element 12 may be preformed in a square shape, a triangular shape, or the like, and is not limited herein.

Further, referring to fig. 4, as a specific embodiment of the electrode catheter system provided by the present invention, an ablation element 11 is further disposed on the interventional catheter 1, the ablation element 11 refers to an element that can perform ultrasonic ablation in an ablation procedure, the ablation element 11 is located at the distal end of the interventional catheter 1, the electrode element 12 is located at the proximal end of one side of the ablation element 11, and both the electrode element 12 and the ablation element 11 are located inside the renal artery 5.

The ablation element 11 includes a balloon 111 and an ultrasound transducer 112 disposed in the balloon 111, the balloon 111 is sleeved on the interventional catheter 1 and fixed to the distal end of the interventional catheter 1, the balloon 111 can be inflated after being injected with liquid or gas, and covers the outside of the ultrasound transducer 112, so as to protect the ultrasound transducer 112 and prevent the ultrasound transducer 112 from directly contacting with a human body. The ultrasound transducer 112 may be an ultrasound transducer 112 capable of ultrasound ablation, which is conventional in the art, and the ultrasound transducer 112 may be provided in one or more as needed.

The interventional catheter 1 is a multi-lumen catheter, the interventional catheter 1 is internally provided with a plurality of chambers, and the interior of the interventional catheter 1 is provided with a first guide wire cavity 13, a second guide wire cavity 14, a water inlet cavity 15 and a water outlet cavity 16, wherein the first guide wire cavity 13 is used for a control wire 121 to pass through, and the length of the first guide wire cavity is from the handle 4 to the control wire 121; the second guide wire cavity 14 is used for guiding guide wires for other operations to pass through, generally penetrates through the whole interventional catheter 1, the water inlet cavity 15 and the water outlet cavity 16 are both communicated with the balloon 111, cold water can pass through the water inlet cavity 15 and the water outlet cavity 16, the proximal end part of the water inlet cavity 15 is connected with a pressurizing injector, and the pressurizing injector is filled with the cold water. The far-end of the water inlet cavity 15 is communicated with the balloon 111, a plurality of water outlets are formed in the side wall of the far-end part, the water outlets are communicated with the balloon 111, when ultrasonic ablation is needed, cold water is filled in the balloon 111, meanwhile, the cold water can flow out of the water outlet cavity 16 to the outside of a human body, circulation of the cold water in the balloon 111 can be achieved, the cold water can be completely discharged from the water outlet cavity 16 when the ultrasonic ablation is completed, and the over-high temperature of the ultrasonic transducer 112 in use can be effectively avoided.

A lead (not shown) is further disposed in the interventional catheter 1, the lead can provide electric energy for the ultrasound transducer 112 and the electrode element 12, and the lead can be directly located inside the interventional catheter 1, or can be accommodated inside the second guide wire cavity 14 or other cavities.

Preferably, in order to facilitate the wire to supply the electric energy to the ultrasonic transducer 112, the balloon 111 has only a second guidewire lumen 14 at the inner distal end, a transducer placing table (not shown) for fixing the ultrasonic transducer 112 is directly disposed at the outer edge of the second guidewire lumen 14, and the wire can be inserted into the second guidewire lumen 14 and connected with the ultrasonic transducer 112 via the transducer placing table. The transducer placement stage may be a transducer placement stage that is conventional in the art.

When the interventional catheter is used, the interventional catheter 1 is placed into a renal artery blood vessel 5 of a patient, blood pressure change in the renal artery blood vessel 5 on the other side and heart rate monitoring are carried out simultaneously, after the interventional catheter 1 is placed at a specific position in the renal artery blood vessel 5, the control wire 121 is controlled by the control button to move along the length direction of the interventional catheter 1, the control wire 121 drives the electrode element 12 to move towards the far end, and the electrode element 12 is released and expanded under the elastic action until the electrode element 12 is attached to the inner wall of the renal artery blood vessel 5; the electrode element 12 is controlled to release an electric signal, if the ultrasonic ablation condition is met, water is injected into the balloon 111 through the water inlet and returns to the water through the water outlet to realize water circulation, and the ultrasonic transducer 112 starts ultrasonic ablation work.

If the nerve activity of the patient is detected to be reduced to a standard value, the ultrasonic ablation work is completed, the ultrasonic transducer 112 is stopped, water is injected into the balloon 111, and the water in the balloon 111 flows out from the water outlet; the control wire 121 drives the electrode element 12 to move towards the proximal end, and the electrode element 12 is compressed under the action of the inner wall of the interventional catheter 1 and abuts against the inner wall of the interventional catheter 1 by utilizing the elastic energy of the electrode element.

Example 2

Referring to fig. 6, as another embodiment of the electrode catheter system provided by the present invention, the present embodiment is different from embodiment 1 in that: the electrode member 12 is preformed in a spiral ring shape, and one end of the electrode member 12 is fixedly connected to the control wire 121. The electrode element 12 is again a wire electrode preformed in the shape of a helical loop, which also has two free ends, one of which is fixedly connected or integrally formed directly to the control wire 121 and the other of which is located at the distal end of the control wire 121. The control wire 121 can move along the length direction of the interventional catheter 1 in the first guide wire cavity 13 and can rotate around the circumference of the interventional catheter 1, so that the electrode wire release paper is gradually inserted outside the catheter 1 and is abutted against the inner wall of the renal artery blood vessel 1, the abutting surface and the abutting range of the electrode wire and the inner wall of the renal artery blood vessel 1 are larger, and the stimulation position of the electrode element 12 is wider when the electrode element releases an electric signal towards the renal artery blood vessel 5. Of course, according to practical conditions and specific requirements, in other embodiments of the present invention, the shape of the electrode element 12 may also be a spiral ellipse, a spiral triangle, etc., and is not limited herein.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. Electrode catheter system, is characterized in that, comprises:

an interventional catheter (1), the interventional catheter (1) is provided with an electrode element (12) capable of releasing electrical signals toward the inner wall of the renal artery blood vessel (5);

a pressure sensor (2) accessible into the arterial vessel; and

A data processing module, the pressure sensor (2) is connected with the data processing module.

2. The electrode catheter system according to claim 1, characterized in that: further comprising an ECG monitoring module (3) for monitoring heartbeat, the ECG monitoring module (3) being connected with the data processing module.

3. The electrode catheter system according to claim 1, wherein the pressure sensor (2) is placed in the renal artery on the other side.

4. The electrode catheter system according to claim 1, characterized in that: the electrode element (12) is made of elastic metal material, and the electrode element (12) has a first electrode received in the intervention catheter (1). A state, and a second state of being in contact with the inner wall of the renal artery vessel (5).

5 . The electrode catheter system according to claim 4 , wherein a control wire ( 121 ) and a first guide wire cavity ( 13 ) for accommodating the control wire ( 121 ) are provided in the interventional catheter ( 1 ). 6 . , the electrode element (12) is connected with the control wire (121), and the control wire (121) slides in the first guide wire cavity (13) under the action of an external force.

6. The electrode catheter system according to claim 5, wherein the electrode element (12) is pre-shaped into an arc shape, and both ends of the electrode element (12) are connected to the control wire (121) Fixed connection.

7 . The electrode catheter system according to claim 5 , wherein the electrode element ( 12 ) is pre-shaped into a spiral ring, and one end of the electrode element ( 12 ) is fixedly connected to the control wire ( 121 ). 8 .

8. The electrode catheter system according to any one of claims 1 to 7, characterized in that: the interventional catheter (1) is further provided with an ablation element (11), and the ablation element (11) is located in the interventional catheter (1) The distal end of the catheter (1), the electrode element (12) is located at the proximal end of the ablation element (11).

9. The electrode catheter system according to claim 8, wherein the ablation element (11) comprises a balloon (111) and an ultrasonic transducer (112) arranged in the balloon (111), The balloon (111) is fixed to the distal end of the interventional catheter (1).

10. The electrode catheter system according to claim 9, characterized in that: the interventional catheter (1) is provided with a second guide wire lumen (14) and a guide wire, and the second guide wire lumen (14) is located in the A transducer placement table is provided on the outer edge of the balloon (111), the ultrasonic transducer (112) is fixed on the transducer placement table, and the ultrasonic transducer (112) is connected to the transducer placement table. wires are connected.

11. The electrode catheter system according to claim 9, characterized in that: the interventional catheter (1) is further provided with a water inlet chamber (15) and a water outlet chamber (16), the water inlet chamber (15) and the water inlet chamber (15) The water outlet cavities (16) are all communicated with the balloon (111).

12. The electrode catheter system according to any one of claims 1 to 7, wherein the proximal end of the interventional catheter (1) is further provided with a handle (4), and the handle (4) is provided with a control The control knob (41) of the electrode element (12).