A novel luminal conformal ablation catheter

Abstract

The application discloses a novel cavity conformal ablation catheter and relates to the technical field of medical devices. The novel cavity conformal ablation catheter comprises a control handle, a catheter main body is fixedly arranged in the control handle, the catheter main body comprises a connecting main pipe, one end of the connecting main pipe is fixedly connected with a connecting hose, one end, away from the connecting main pipe, of the connecting hose is fixedly connected with a connecting catheter, the other end of the connecting main pipe is fixedly connected with a radio frequency cable, and one end, away from the connecting main pipe, of the radio frequency cable is fixedly connected with a radio frequency plug. The novel cavity conformal ablation catheter realizes efficient ablation treatment through inflation of a balloon in a conformal ablation assembly and radio frequency energy transmission, improves treatment precision, improves flexible use of the ablation catheter through an adjusting block in an adjusting assembly, and ensures uniform and stable inflation of the balloon through an arc-shaped block in an auxiliary assembly, so that the situation that the balloon is unevenly inflated and electrode pieces are insufficiently in contact with tissues is avoided.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a novel conformal ablation catheter for cavities. Background Technology

[0002] Ablation catheters play a crucial role in the field of cardiac electrophysiology, primarily used to treat cardiac diseases such as arrhythmias. In recent years, the use of ring-shaped multipolar ablation catheters has been widely adopted due to their advantages over monopolar ablation catheters, including shorter ablation time, less radiation exposure time, and reduced operator skill requirements. However, the unique structure of pulmonary veins and individual differences can prevent effective adhesion between the catheter and the target site, leading to insufficient electric field and inadequate therapeutic effects. Petal-shaped basket catheters, on the other hand, can adjust the size of the basket by the elastic bending of its circumferentially distributed basket framework to accommodate pulmonary vein cavities of varying sizes.

[0003] In existing technologies, the catheter and control handle are directly fixed together, forming a single unit. However, due to environmental factors, it can be inconvenient for personnel to hold the control handle and insert the balloon into the body. In such cases, staff must manually adjust the patient's position, which is extremely cumbersome. Furthermore, many existing ablation catheters mount electrode pads on the balloon, with the balloon inflating to allow the electrode pads to adhere to the body tissue. However, in this technology, because gas is injected into the balloon, the electrode pads cannot be instantly adhered to the body tissue. This can lead to uneven contact between the electrode pads and the tissue, potentially resulting in uneven distribution of ablation energy and affecting the treatment effect. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a novel conformal ablation catheter that solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A novel conformal ablation catheter includes a control handle, inside which a catheter body is fixedly installed. The catheter body includes a connecting main tube, one end of which is fixedly connected to a connecting hose, the end of which, away from the connecting main tube, is fixedly connected to a connecting catheter, the other end of which is fixedly connected to a radio frequency cable, the end of which, away from the connecting main tube, is fixedly connected to a radio frequency plug, and a tracheal connector is fixedly connected to the connecting main tube. A control button is provided on the surface of the control handle.

[0007] The connecting catheter is provided with a conformal ablation assembly, the conformal ablation assembly is provided with an inflatable balloon, and a pressure sensor and a temperature sensor are fixedly installed on the inner side of the inflatable balloon.

[0008] An RF connection delivery line is fixedly installed inside the conduit body, and a corresponding air inlet pipe is fixedly installed inside the conduit body and inside the RF connection delivery line.

[0009] An auxiliary component is provided between the control handle and the conformal ablation component to ensure that the electrode pads on the inflatable balloon make uniform contact with the tissue.

[0010] The control handle is equipped with an adjustment component, which is used to adjust the angle of the connecting conduit.

[0011] Preferably, the conformal ablation assembly includes an installation block fixedly mounted on a connecting catheter, a positioning rod fixedly mounted on the installation block, a connecting block fixedly mounted at the end of the positioning rod away from the installation block, a sensor fixedly mounted on the outer side of the connecting block, an electrode sheet fixedly mounted on the outer surface of the inflatable balloon, and a Mark imaging ring disposed on the inflatable balloon and on one side of the electrode sheet.

[0012] Preferably, the inflatable balloon is fixedly mounted on the mounting block and the connecting block, one end of the radio frequency connection conveyor is fixedly connected to the electrode plate, the other end of the radio frequency connection conveyor is fixedly connected to the radio frequency cable, one end of the air inlet pipe extends into the interior of the inflatable balloon, and the other end of the air inlet pipe is fixedly connected to the air pipe connector.

[0013] Preferably, the adjustment assembly includes a mounting slot on the control handle, a rotating shaft is rotatably mounted inside the mounting slot, an adjustment block is fixedly mounted on the rotating shaft, a worm gear groove is provided on the outer side of the adjustment block, an adjustment shaft is rotatably mounted inside the mounting slot and on one side of the rotating shaft, a worm is fixedly mounted on the adjustment shaft, and adjustment gears are fixedly mounted at both ends of the adjustment shaft.

[0014] Preferably, the outer side of the control handle is provided with an external thread, an adjusting ring is movably mounted on the external thread, an annular groove is provided on the adjusting ring, a T-shaped connecting rod is slidably mounted inside the annular groove, a stabilizing groove is provided on the outer side of the control handle on the side of the external thread, a sliding ring is slidably mounted on the stabilizing groove, and an adjusting toothed plate is fixedly mounted on the outer side of the sliding ring.

[0015] Preferably, the connecting conduit is fixedly mounted on the adjusting block, both ends of the adjusting shaft extend to the outside of the control handle, the worm gear meshes with the worm wheel tooth groove, the adjusting tooth plate meshes with the adjusting gear, and the end of the T-shaped connecting rod away from the annular groove is fixedly connected to the sliding ring.

[0016] Preferably, the auxiliary component includes a motor fixedly mounted on the adjusting block, a rotating rod fixedly mounted on the output end of the motor, symmetrically arranged auxiliary threads on the rotating rod, a first sliding plate and a second sliding plate slidably mounted on the two auxiliary threads respectively, a first driving rod and a second driving rod rotatably mounted on the first sliding plate and the second sliding plate respectively, a connecting frame rotatably mounted on the first driving rod and the second driving rod, and an arc-shaped plate fixedly mounted on the two connecting frames.

[0017] Preferably, the end of the rotating rod away from the motor extends into the interior of the connecting conduit, the rotating rod is located inside the air intake pipe, the auxiliary thread is located inside the inflatable balloon, and both the first and second sliding plates are slidably mounted with the positioning rod.

[0018] This invention provides a novel conformal ablation catheter for cavities. Compared with existing technologies, it has the following advantages:

[0019] 1. This invention delivers the conformal ablation component on the catheter body into the human body via a control handle. Then, the sensor on the connecting block determines the location of the human tissue to be ablated. Next, the external air pump delivers gas through the air inlet tube to the human body via the tracheal connector. The expansion of the balloon causes the electrode pads on the balloon to adhere to the human tissue. Radiofrequency energy is then delivered to the electrode pads attached to the outer wall of the balloon via radiofrequency cables and radiofrequency connection lines, thereby performing ablation treatment on the target treatment area. During the treatment process, the Mark imaging ring adheres tightly to the surface of the balloon as it expands, allowing for clear observation of its real-time position and status, effectively improving the effectiveness of the ablation catheter.

[0020] 2. In this invention, since the catheter and control handle are directly fixed together, when it is inconvenient for personnel to insert the conformal ablation component on the catheter body into the human body due to environmental factors, the adjustment ring is rotated. The adjustment ring engages with the external thread, the T-shaped connecting rod engages with the sliding ring, and the sliding ring engages with the stabilizing groove, thereby driving the adjustment toothed plate on the sliding ring to move horizontally. Then, the adjustment toothed plate engages with the adjustment gear, and the rotation of the adjustment gear drives the adjustment shaft to rotate. The worm gear on the adjustment shaft engages with the worm wheel groove on the adjustment block, and the rotation shaft limits the angle of the connecting catheter on the adjustment block. By adjusting the angle between the control handle and the connecting catheter, the accuracy and flexibility of the medical operation are greatly improved, ensuring that the ablation catheter can be more easily inserted into the human body.

[0021] 3. In this invention, when the inflatable balloon needs to be inflated, a motor drives a rotating rod to rotate. Two auxiliary threads on the rotating rod rotate synchronously. The first and second sliding plates on the rotating rod are limited by a positioning rod, causing them to move inwards simultaneously. The two first and second driving rods on the first and second sliding plates are limited by a connecting frame, causing the arc-shaped plate to move outwards. The arc-shaped plate pre-inflates the deflated balloon, ensuring uniform inflation and better contact with human tissue. This effectively reduces uneven inflation after inflation and avoids insufficient contact between the electrode pads and tissue.

[0022] 4. This invention achieves efficient ablation treatment and improves treatment precision through the expansion balloon and radiofrequency energy transmission in the conformal ablation component. The adjustment block in the adjustment component improves the flexibility of the ablation catheter. Furthermore, the arc-shaped block in the auxiliary component ensures uniform and stable expansion during expansion, avoiding uneven expansion and insufficient contact between the electrode and the tissue. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the control handle in this invention;

[0025] Figure 3 This is a schematic diagram of the structure of the inflatable balloon in this invention;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 This is a schematic diagram of the auxiliary component in this invention;

[0028] Figure 6 This is a cross-sectional view of the control handle in this invention;

[0029] Figure 7 This is a partial cross-sectional view of the control handle in this invention;

[0030] Figure 8 This is a schematic diagram of the structure of the adjusting block in this invention;

[0031] Figure 9 This is a schematic diagram of the internal structure of the inflatable balloon in this invention.

[0032] In the diagram: 1. Control handle; 2. Tube body; 201. Connecting main tube; 202. Connecting hose; 203. Connecting tubing; 3. Radio frequency cable; 4. Radio frequency plug; 5. Tracheal connector; 6. Inflatable balloon; 7. Radio frequency connection delivery line; 8. Inlet tube; 9. Mounting block; 10. Positioning rod; 11. Connecting block; 12. Sensor; 13. Electrode plate; 14. Mounting slot; 15. Rotating shaft; 16. Adjusting block; 17. Worm gear groove; 18. Adjusting shaft; 19. Worm; 2 0. Adjusting gear; 21. External thread; 22. Adjusting ring; 23. Annular groove; 24. T-shaped connecting rod; 25. Stabilizing slide groove; 26. Sliding ring; 27. Adjusting gear plate; 28. Motor; 29. ​​Rotating rod; 30. Auxiliary thread; 31. First slide plate; 32. Second slide plate; 33. First drive rod; 34. Second drive rod; 35. Connecting frame; 36. Arc plate; 37. Mark developing ring; 38. Pressure sensor; 39. Temperature sensor; 40. Control button. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0034] Please see Figure 1-9This invention relates to a novel conformal ablation catheter, comprising a control handle 1, with a catheter body 2 fixedly installed inside the control handle 1. The catheter body 2 includes a connecting main tube 201, one end of which is fixedly connected to a connecting hose 202, and the other end of the connecting hose 202 away from the connecting main tube 201 is fixedly connected to a connecting catheter 203. An radio frequency cable 3 is fixedly connected to the other end of the connecting main tube 201, and an radio frequency plug 4 is fixedly connected to the other end of the radio frequency cable 3 away from the connecting main tube 201. A tracheal connector 5 is fixedly connected to the connecting main tube 201. A control button 40 is provided on the surface of the control handle 1, which is used to control a motor 28. This technology is [not specified in the original text]. The techniques familiar to personnel will not be described in detail here. The connecting catheter 203 is equipped with a conformal ablation component, and the conformal ablation component is equipped with an inflatable balloon 6. A pressure sensor 38 and a temperature sensor 39 are fixedly installed on the inner side of the inflatable balloon 6. An radio frequency connection delivery line 7 is fixedly installed inside the catheter body 2. A corresponding air inlet pipe 8 is fixedly installed inside the catheter body 2 and inside the radio frequency connection delivery line 7. An auxiliary component is provided between the control handle 1 and the conformal ablation component. The auxiliary component ensures that the electrode pads 13 on the inflatable balloon 6 are in uniform contact with the tissue. An adjustment component is provided on the control handle 1. The angle of the connecting catheter 203 is adjusted by adjusting the adjustment component.

[0035] The conformal ablation assembly includes a mounting block 9 fixedly mounted on a connecting catheter 203, a positioning rod 10 fixedly mounted on the mounting block 9, a connecting block 11 fixedly mounted at the end of the positioning rod 10 away from the mounting block 9, a sensor 12 fixedly mounted on the outer surface of the connecting block 11, an electrode pad 13 fixedly mounted on the outer surface of the inflatable balloon 6, a Mark imaging ring 37 disposed on the inflatable balloon 6 and on one side of the electrode pad 13, the inflatable balloon 6 being fixedly mounted on the mounting block 9 and the connecting block 11, and one end of the radiofrequency connection delivery line 7 being fixedly connected to the electrode pad. On 13, the other end of the radio frequency connection transmission line 7 is fixedly connected to the radio frequency cable 3. One end of the air inlet pipe 8 extends into the interior of the inflatable balloon 6, and the other end of the air inlet pipe 8 is fixedly connected to the tracheal connector 5. The inflatable balloon 6 is made of a special material (polytetrafluoroethylene (PTFE) or polyether ether ketone (PEEK)), which has excellent chemical stability, corrosion resistance, low coefficient of friction and good high temperature resistance. Therefore, the inflatable balloon 6 will not rupture due to high temperature or discharge. Meanwhile, the Mark imaging ring 37 is made of a special material (titanium alloy).

[0036] In this embodiment, the conformal ablation component on the catheter body 2 is delivered into the human body via the control handle 1. Then, the sensor 12 on the connecting block 11 determines the location of the human tissue to be ablated. The external air pump is then delivered through the air inlet pipe 8 to the human body via the tracheal connector 5. The expansion of the balloon 6 causes the electrode pads 13 on the balloon 6 to adhere to the human tissue. Radiofrequency energy is then delivered to the electrode pads 13 attached to the outer wall of the balloon 6 via the radiofrequency cable 3 and the radiofrequency connection and delivery line 7, thereby performing ablation treatment on the target treatment area. During the treatment, the Mark imaging ring 37 adheres tightly to the surface of the balloon as the balloon 6 expands. The Mark imaging ring 37 allows for clear observation of its real-time position and status, effectively improving the effectiveness of the ablation catheter.

[0037] The adjustment assembly includes a mounting slot 14 on the control handle 1, a rotating shaft 15 rotatably mounted inside the mounting slot 14, an adjusting block 16 fixedly mounted on the rotating shaft 15, a worm gear groove 17 on the outer side of the adjusting block 16, an adjusting shaft 18 rotatably mounted inside the mounting slot 14 and on one side of the rotating shaft 15, a worm gear 19 fixedly mounted on the adjusting shaft 18, and adjusting gears 20 fixedly mounted at both ends of the adjusting shaft 18, an external thread 21 on the outer side of the control handle 1, an adjusting ring 22 movably mounted on the external thread 21, an annular groove 23 on the adjusting ring 22, a T-shaped connecting rod 24 slidably mounted inside the annular groove 23, and a stabilizing groove 25 on the outer side of the control handle 1 and on the side of the external thread 21. A sliding ring 26 is slidably mounted on the stabilizing groove 25. An adjusting toothed plate 27 is fixedly mounted on the outer side of the sliding ring 26. The connecting conduit 203 is fixedly mounted on the adjusting block 16. Both ends of the adjusting shaft 18 extend to the outside of the control handle 1. The worm 19 meshes with the worm gear tooth groove 17. The adjusting toothed plate 27 meshes with the adjusting gear 20. The end of the T-shaped connecting rod 24 away from the annular groove 23 is fixedly connected to the sliding ring 26. The air inlet pipe 8 inside the conduit body 2 is divided into three sections. The three sections of the air inlet pipe 8 are respectively located in the connecting main pipe 201, the connecting hose 202, and the connecting conduit 203. The air inlet pipe 8 inside the connecting hose 202 is a soft air pipe. The connecting hose 202 is used to ensure that the adjusting block 16 can drive the connecting conduit 203 to rotate at an angle.

[0038] In this embodiment, since the control handle 1 and the catheter body 2 are in the same direction, when it is inconvenient for the person to hold the control handle 1 to insert the conformal ablation component on the catheter body 2 into the human body, by rotating the adjusting ring 22, the adjustment ring 22 and the external thread 21 are engaged, the T-shaped connecting rod and the sliding ring 26 are engaged, and the sliding ring 26 and the stabilizing groove 25 are limited to slide, thereby driving the adjusting tooth plate 27 on the sliding ring 26 to move horizontally. Then, by the engagement of the adjusting tooth plate 27 and the adjusting gear 20, the rotation of the adjusting gear 20 drives the adjusting shaft 18 to rotate. By the engagement of the worm gear 19 on the adjusting shaft 18 and the worm wheel groove 17 on the adjusting block 16, the connecting catheter 203 on the adjusting block 16 is rotated at an angle by the limiting of the rotating shaft 15. By adjusting the angle between the control handle 1 and the connecting catheter 203, the accuracy and flexibility of the medical operation are greatly improved, ensuring that the ablation catheter can be more easily inserted into the human body.

[0039] The auxiliary components include a motor 28 fixedly mounted on an adjusting block 16. A rotating rod 29 is fixedly mounted on the output end of the motor 28. The rotating rod 29 has symmetrically arranged auxiliary threads 30. A first sliding plate 31 and a second sliding plate 32 are slidably mounted on the two auxiliary threads 30, respectively. A first driving rod 33 and a second driving rod 34 are rotatably mounted on the first sliding plate 31 and the second sliding plate 32, respectively. A connecting frame 35 is rotatably mounted on both the first driving rod 33 and the second driving rod 34. An arc-shaped plate 36 is fixedly mounted on the two connecting frames 35. The end of the rotating rod 29 away from the motor 28 extends into the interior of the connecting conduit 203. The rotating rod 29 is located inside the air intake pipe 8. The auxiliary thread 30 is located inside the inflatable balloon 6. The first sliding plate 31 and the second sliding plate 32 are both slidably installed with the positioning rod 10. The arc plate 36 is located between the first drive rod 33 and the second drive rod 34. The first drive rod 33 and the second drive rod 34 are in an inclined device to ensure that the arc plate 36 can be lifted when the first sliding plate 31 and the second sliding plate 32 move inward.

[0040] In this embodiment, when the inflatable balloon 6 needs to be inflated, the motor 28 drives the rotating rod 29 to rotate. The two auxiliary threads 30 on the rotating rod 29 rotate synchronously. The first sliding plate 31 and the second sliding plate 32 on the rotating rod 29 are limited by the positioning rod 10, and thus move inward simultaneously. The two first driving rods 33 and the second driving rods 34 on the first sliding plate 31 and the second sliding plate 32 are limited by the connecting frame 35, and thus drive the arc plate 36 to move outward. The arc plate 36 pre-supports the inflatable balloon 6 in the deflated state. The pre-support of the arc plate 36 ensures that the inflatable balloon 6 can expand evenly, thereby better contacting human tissue and effectively reducing the uneven expansion phenomenon of the inflatable balloon 6 after inflation, avoiding insufficient contact between the electrode sheet 13 and the tissue.

[0041] Working principle: During use, the motor 28 drives the rotating rod 29 to rotate. The two auxiliary threads 30 on the rotating rod 29 rotate synchronously. The first sliding plate 31 and the second sliding plate 32 on the rotating rod 29 move inwards simultaneously due to the limiting position of the positioning rod 10. The two first drive rods 33 and the second drive rod 34 on the first sliding plate 31 and the second sliding plate 32 move outwards due to the limiting position of the connecting frame 35. The arc-shaped plate 36 pre-inflates the deflated balloon 6. The handle 1 delivers the conformal ablation component on the catheter body 2 into the human body. Then, the sensor 12 on the connecting block 11 determines the location of the human tissue to be ablated. Next, the endotracheal connector 5 delivers gas via an external air pump through the inlet tube 8 into the human body. The inflation of the balloon 6 causes the electrode pads 13 on the balloon 6 to adhere to the human tissue. Radiofrequency energy is then delivered to the electrode pads 13 attached to the outer wall of the balloon 6 using the radiofrequency cable 3 and the radiofrequency connection delivery line 7, thereby performing ablation treatment on the target treatment area. During treatment, the Mark imaging ring 37 closely adheres to the surface of the balloon 6 as it expands, allowing for clear observation of its real-time position and status. When, due to environmental factors, it is inconvenient for personnel to hold the control handle 1 to insert the conformal ablation component on the catheter body 2 into the body, the adjusting ring 22 is rotated. This rotation utilizes the engagement between the adjusting ring 22 and the external thread 21, the engagement between the T-shaped connector and the sliding ring 26, and the limiting sliding of the sliding ring 26 against the stabilizing groove 25, thereby driving the sliding ring... The adjusting toothed plate 27 on 26 moves horizontally, and then the adjusting toothed plate 27 cooperates with the adjusting gear 20. The rotation of the adjusting gear 20 drives the adjusting shaft 18 to rotate. The worm gear 19 on the adjusting shaft 18 cooperates with the worm wheel groove 17 on the adjusting block 16. The connecting catheter 203 on the adjusting block 16 is rotated at an angle by limiting the rotation shaft 15. By adjusting the angle between the control handle 1 and the connecting catheter 203, the accuracy and flexibility of the medical operation are greatly improved, ensuring that the ablation catheter can be more easily inserted into the human body.

[0042] In this technical solution, the radiofrequency plug 4 can be inserted into the radiofrequency ablation device, and the endotracheal connector 5 is connected to the air pump. When the radiofrequency plug 4 is inserted into the radiofrequency ablation device, the operator delivers the conformal balloon to the patient's treatment lumen area through the delivery catheter. The operator controls the inflation of the balloon 6 by using the buttons on the radiofrequency ablation device panel. When the balloon 6 reaches the preset pressure, the pressure sensor 38 inside the balloon 6 feeds back the pressure it collects in real time (which can indirectly detect the balloon 6's adhesion to the wall) to the radiofrequency ablation device. The radiofrequency ablation device then issues a command to stop inflating the balloon 6 and start switching the ablation mode. At this time, the electrode pads 13 on the balloon 6 begin to work, performing ablation treatment on the lesion tissue. When ablation reaches a certain extent, the temperature sensor 39 preset inside the balloon 6 can sense the temperature in real time. During the ablation process, real-time temperature changes are collected and fed back to the radiofrequency ablation device. The device's display panel allows for real-time monitoring of the treatment temperature, preventing over-ablation that could lead to tissue carbonization and scab formation. Simultaneously, since radiofrequency ablation works by causing local tissue moisture to vibrate and heat up, leading to denaturation and necrosis of the diseased tissue, the moisture content within the diseased tissue gradually decreases over time. As the moisture content decreases, the current delivered via radiofrequency ablation is affected, indirectly impacting the output of radiofrequency energy. This phenomenon is monitored in real-time by observing changes in impedance values ​​on the device's display panel, thus determining the ablation treatment effect and preventing over-ablation, carbonization, and scab formation.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A novel conformal ablation catheter for cavities, comprising a control handle (1), characterized in that: The control handle (1) has a catheter body (2) fixedly installed inside. The catheter body (2) includes a connecting main tube (201). One end of the connecting main tube (201) is fixedly connected to a connecting hose (202). The end of the connecting hose (202) away from the connecting main tube (201) is fixedly connected to a connecting conduit (203). The other end of the connecting main tube (201) is fixedly connected to an RF cable (3). The end of the RF cable (3) away from the connecting main tube (201) is fixedly connected to an RF plug (4). A tracheal connector (5) is fixedly connected to the connecting main tube (201). The surface of the control handle (1) is provided with a control button (40). The connecting catheter (203) is provided with a conformal ablation assembly, and the conformal ablation assembly is provided with an inflatable balloon (6). A pressure sensor (38) and a temperature sensor (39) are fixedly installed on the inner side of the inflatable balloon (6). The duct body (2) is fixedly installed with an RF connection delivery line (7), and a corresponding air inlet pipe (8) is fixedly installed inside the duct body (2) and on the inner side of the RF connection delivery line (7). An auxiliary component is provided between the control handle (1) and the conformal ablation component, which ensures that the electrode sheet (13) on the inflatable balloon (6) is in uniform contact with the tissue. The control handle (1) is provided with an adjustment component, which is used to adjust the angle of the connecting conduit (203). The adjustment component includes a mounting groove (14) on the control handle (1). A rotating shaft (15) is rotatably mounted inside the mounting groove (14). An adjustment block (16) is fixedly mounted on the rotating shaft (15). A worm gear groove (17) is provided on the outer side of the adjustment block (16). An adjustment shaft (18) is rotatably mounted inside the mounting groove (14) and on one side of the rotating shaft (15). A worm gear (19) is fixedly mounted on the adjustment shaft (18). Adjustment gears (20) are fixedly mounted at both ends of the adjustment shaft (18). An external thread (21) is provided on the outer side of the control handle (1). An adjustment ring (22) is movably mounted on the external thread (21). An annular groove (23) is provided on the adjustment ring (22). A T-shaped connecting rod is slidably mounted inside the annular groove (23). The control handle (1) has a stabilizing groove (25) on its outer side and on the side of the external thread (21). A sliding ring (26) is slidably installed on the stabilizing groove (25). An adjusting toothed plate (27) is fixedly installed on the outer side of the sliding ring (26). The auxiliary component includes a motor (28) fixedly installed on the adjusting block (16). A rotating rod (29) is fixedly installed at the output end of the motor (28). A symmetrically arranged auxiliary thread (30) is provided on the rotating rod (29). A first sliding plate (31) and a second sliding plate (32) are slidably installed on the two auxiliary threads (30). A first driving rod (33) and a second driving rod (34) are rotatably installed on the first sliding plate (31) and the second sliding plate (32). A connecting frame (35) is rotatably installed on both the first driving rod (33) and the second driving rod (34). An arc plate (36) is fixedly installed on the two connecting frames (35).

2. The novel conformal ablation catheter according to claim 1, characterized in that: The conformal ablation assembly includes a mounting block (9) fixedly mounted on a connecting catheter (203), a positioning rod (10) fixedly mounted on the mounting block (9), a connecting block (11) fixedly mounted on the end of the positioning rod (10) away from the mounting block (9), a sensor (12) fixedly mounted on the outer side of the connecting block (11), an electrode sheet (13) fixedly mounted on the outer surface of the inflatable balloon (6), and a Mark imaging ring (37) provided on the inflatable balloon (6) and on one side of the electrode sheet (13).

3. The novel conformal ablation catheter according to claim 2, characterized in that: The inflatable balloon (6) is fixedly installed on the mounting block (9) and the connecting block (11). One end of the radio frequency connection transmission line (7) is fixedly connected to the electrode plate (13), and the other end of the radio frequency connection transmission line (7) is fixedly connected to the radio frequency cable (3). One end of the air inlet pipe (8) extends into the interior of the inflatable balloon (6), and the other end of the air inlet pipe (8) is fixedly connected to the tracheal connector (5).

4. The novel conformal ablation catheter according to claim 1, characterized in that: The connecting conduit (203) is fixedly installed on the adjusting block (16), the two ends of the adjusting shaft (18) extend to the outside of the control handle (1), the worm (19) meshes with the worm gear groove (17), the adjusting tooth plate (27) meshes with the adjusting gear (20), and the end of the T-shaped connecting rod (24) away from the annular groove (23) is fixedly connected to the sliding ring (26).

5. The novel conformal ablation catheter according to claim 1, characterized in that: The end of the rotating rod (29) away from the motor (28) extends into the interior of the connecting conduit (203). The position of the rotating rod (29) is inside the air intake pipe (8). The position of the auxiliary thread (30) is inside the inflatable balloon (6). The first sliding plate (31) and the second sliding plate (32) are both slidably installed with the positioning rod (10).

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