Ablation mechanism

Abstract

The utility model discloses an ablation mechanism. The ablation mechanism comprises a handle, an ablation assembly and an adjusting assembly. The ablation assembly comprises a first ablation electrode, a second ablation electrode, a first insulating part and a second insulating part which are coaxially arranged; the adjusting assembly is movably arranged on the handle and connected to the first ablation electrode, the first insulating part and the second ablation electrode. Wherein the first ablation electrode is provided with a first electrode part extending out of the first insulating part, the first insulating part is provided with a first insulating part extending out of the second ablation electrode, and the second ablation electrode is provided with a second electrode part extending out of the second insulating part. The adjusting assembly is configured to be capable of driving the first ablation electrode, the first insulating part and the second ablation electrode to move in the axial direction of the ablation assembly so as to adjust the exposed length of at least one of the first electrode part and the second electrode part. The problems that in the prior art, an ablation electrode is single in function, and the action length of the ablation electrode cannot be adjusted according to the size of a target ablation part can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an ablation mechanism. Background Art

[0002] Ablation electrodes, as an important surgical tool, play a crucial role in cardiac, liver, brain, and orthopedic surgeries. Through the transmission of electric current and heat conduction, they can quickly and effectively destroy abnormal tissue, achieving the goal of treating diseases.

[0003] In current clinical practice, when using ablation electrodes to ablate tumors or nerves, different electrodes must be selected according to the size of the ablation area. However, due to the single function of ablation electrodes in existing technologies, the effective length of the ablation electrodes cannot be adjusted according to the size of the target ablation site, thereby causing damage to other tissues outside the target ablation site. Utility Model Content

[0004] The main purpose of the present application is to provide an ablation mechanism to solve the problem in the prior art that the ablation electrode has a single function and cannot adjust the effective length of the ablation electrode according to the size of the target ablation site.

[0005] According to one aspect of the present application, there is provided an ablation mechanism, comprising:

[0006] handle;

[0007] an ablation assembly connected to the handle, comprising a first ablation electrode, a second ablation electrode, a first insulating member, and a second insulating member coaxially arranged, wherein the first ablation electrode is movably connected to the handle, the second ablation electrode is movably sleeved on the outer surface of the first ablation electrode, the first insulating member is movably sleeved between the first ablation electrode and the second ablation electrode, and the second insulating member is sleeved on the outer surface of the second ablation electrode;

[0008] an adjusting component, the adjusting component being movably disposed on the handle and being respectively connected to the first ablation electrode, the first insulating member, and the second ablation electrode;

[0009] In which, the first ablation electrode has a first electrode portion extending from the first insulating member, the first insulating member has a first insulating portion extending from the second ablation electrode, and the second ablation electrode has a second electrode portion extending from the second insulating member. The adjustment component is configured to drive the first ablation electrode, the first insulating member and the second ablation electrode to move along the axial direction of the ablation component to adjust the exposed length of at least one of the first electrode portion and the second electrode portion.

[0010] Furthermore, the handle includes a shell having an accommodating space, at least a portion of the ablation assembly is disposed in the accommodating space, and the adjustment assembly includes a first adjustment component or a second adjustment component;

[0011] The first adjusting component is rotatably connected to the housing and is respectively connected to the first ablation electrode, the first insulating member, and the second ablation electrode in the accommodating space, so as to drive the first ablation electrode, the first insulating member, and the second ablation electrode to move along the axial direction of the ablation assembly, thereby adjusting the exposed length of at least one of the first electrode portion and the second electrode portion;

[0012] The second adjustment component is movably clamped to the shell and respectively connected to the first ablation electrode, the first insulating member and the second ablation electrode in the accommodating space to drive the first ablation electrode, the first insulating member and the second ablation electrode to move along the axial direction of the ablation component, thereby adjusting the exposed length of at least one of the first electrode part and the second electrode part.

[0013] Furthermore, the first adjusting component includes:

[0014] a first adjustment group, the first adjustment group being rotatably connected to the housing and the first ablation electrode, the first adjustment group comprising a first operating portion and a first slider, the first operating portion being rotatably sleeved on the outer surface of the housing and the inner wall of the first operating portion being threadedly engaged with the outer surface of the housing, the first slider being rotatably disposed in the accommodating space and connected between the first operating portion and the first ablation electrode;

[0015] a second adjustment group, the second adjustment group being rotatably connected to the housing and the first insulating member, the second adjustment group comprising a second operating portion and a second slider, the second operating portion being rotatably sleeved on the outer surface of the housing and the inner wall of the second operating portion being threadedly engaged with the outer surface of the housing, the second slider being rotatably disposed in the accommodating space and connected between the second operating portion and the first insulating member;

[0016] a third adjustment group, the third adjustment group being rotatably connected to the housing and the second ablation electrode, the third adjustment group comprising a third operating portion and a third slider, the third operating portion being rotatably sleeved on the outer surface of the housing and the inner wall of the third operating portion being threadedly engaged with the outer surface of the housing, the third slider being rotatably disposed in the accommodating space and connected between the third operating portion and the second ablation electrode;

[0017] Wherein, the first adjustment group, the second adjustment group and the third adjustment group are arranged in sequence along the axial direction of the ablation component;

[0018] The first operating portion is configured to drive the first slider to move along the axial direction of the ablation assembly when rotating so as to extend and retract the first ablation electrode within the first insulating member, thereby adjusting the exposed length of the first electrode portion;

[0019] The second operating portion is configured to drive the second slider to move along the axial direction of the ablation assembly when rotating so that the first insulating member can be extended and retracted within the second ablation electrode, thereby adjusting the exposed length of the first insulating portion;

[0020] The third operating portion is configured to drive the third slider to move along the axial direction of the ablation assembly when rotating so as to extend or retract the second ablation electrode within the second insulating member, thereby adjusting the exposed length of the second electrode portion.

[0021] Furthermore, a first limiting block, a second limiting block and a third limiting block are provided in the accommodating space, and the first limiting block, the second limiting block and the third limiting block are all fixedly mounted on the housing and arranged in sequence along the axial direction of the ablation component;

[0022] A first stopper is embedded in the first operating portion, the first stopper is arranged close to the first slider and located on a side of the first slider facing away from the second slider; a second stopper is embedded in the second operating portion, the second stopper is arranged close to the second slider and located on a side of the second slider close to the first slider; a third stopper is embedded in the third operating portion, the third stopper is arranged close to the third slider and located on a side of the third slider close to the second slider;

[0023] The first slider is rotatably disposed between the first limit block and the second limit block, so as to reciprocate between the first limit block and the second limit block under the drive of the first operating portion, so that the first stopper has a first position abutting against the first limit block and a second position away from the first limit block;

[0024] The second slider is rotatably disposed between the second limit block and the third limit block, so as to reciprocate between the second limit block and the third limit block under the drive of the second operating portion, so that the second stopper has a third position abutting against the second limit block and a fourth position away from the second limit block;

[0025] The third slider is rotatably arranged between the third limit block and the end of the shell, so as to reciprocate between the third limit block and the end of the shell under the drive of the third operating part, so that the third stopper has a fifth position abutting against the third limit block and a sixth position away from the third limit block.

[0026] Furthermore, the first sliding block, the second limiting block, the second sliding block and the third limiting block are all provided with wire holes.

[0027] Furthermore, at least a portion of the second operating portion covers the first operating portion and the third operating portion, and a first scale line group, a second scale line group, and a third scale line group are respectively provided on the first operating portion, the third operating portion, and the housing;

[0028] Among them, the first scale line group, the second scale line group and the third scale line group all include multiple scale values ​​arranged along the axial direction of the ablation component, the first operating part can move between the multiple scale values ​​of the first scale line group when rotating, the second operating part can move between the multiple scale values ​​of the second scale line group when rotating, and the third operating part can move between the multiple scale values ​​of the third scale line group when rotating.

[0029] Furthermore, the second adjusting component includes:

[0030] a fourth adjustment group, the fourth adjustment group being movably snap-fitted to the housing and connected to the first ablation electrode, the fourth adjustment group comprising a fourth operating portion, a first snap ring, and a first elastic member, the first elastic member being disposed in the accommodating space and connected to the first ablation electrode, the first snap ring being disposed in the accommodating space and sleeved on the first elastic member, the fourth operating portion being movably disposed on the outer surface of the housing and fixedly connected to the first snap ring;

[0031] a fifth adjustment group, the fifth adjustment group being movably engaged with the housing and connected to the first insulating member, the fifth adjustment group comprising a fifth operating portion, a second snap ring, and a second elastic member, the second elastic member being disposed within the accommodating space and connected to the first insulating member, the second snap ring being disposed within the accommodating space and sleeved on the second elastic member, the fifth operating portion being movably disposed on an outer surface of the housing and connected to the second snap ring;

[0032] a sixth adjustment group, the sixth adjustment group being movably snap-fitted to the housing and connected to the second ablation electrode, the sixth adjustment group comprising a sixth operating portion, a third snap ring, and a third elastic member, the third elastic member being disposed in the accommodating space and connected to the second ablation electrode, the third snap ring being disposed in the accommodating space and sleeved on the third elastic member, the sixth operating portion being disposed on the outer surface of the housing and connected to the third snap ring;

[0033] Wherein, the fourth adjustment group, the fifth adjustment group and the sixth adjustment group are arranged in sequence along the axial direction of the ablation component;

[0034] The fourth operating portion is configured such that when the fourth operating portion moves, the first elastic member is driven by the first buckle ring to move along the axial direction of the ablation assembly so that the first ablation electrode is retracted within the first insulating member, thereby adjusting the exposed length of the first electrode portion;

[0035] The fifth operating portion is configured such that when the fifth operating portion moves, the second elastic member is driven by the second buckle ring to move along the axial direction of the ablation assembly so that the first insulating member is retracted within the second ablation electrode, thereby adjusting the exposed length of the first insulating portion;

[0036] The sixth operating portion is configured to move so that the third elastic member, driven by the third buckle ring, moves axially along the ablation assembly to extend and retract the second ablation electrode within the second insulating member, thereby adjusting the exposed length of the second ablation electrode.

[0037] Furthermore, the housing has a first slot group adapted to the first snap ring, a second slot group adapted to the second snap ring, and a third slot group adapted to the third snap ring, and the first slot group, the second slot group, and the third slot group each include a plurality of slot segments;

[0038] Among them, when the fourth operating part moves, it can drive the first snap ring to move between multiple slot segments of the first slot group; when the fifth operating part moves, it can drive the second snap ring to move between multiple slot segments of the second slot group; when the sixth operating part moves, it can drive the third snap ring to move between multiple slot segments of the third slot group.

[0039] Furthermore, at least a portion of the fifth operating portion covers the fourth operating portion and the sixth operating portion, and the outer surface of the housing has a fourth scale line group, a fifth scale line group, and a sixth scale line group;

[0040] Among them, the fourth scale line group, the fifth scale line group and the sixth scale line group all include multiple scale values ​​arranged along the axial direction of the ablation component, the fourth operating part can move between the multiple scale values ​​of the fourth scale line group when rotating, the fifth operating part can move between the multiple scale values ​​of the fifth scale line group when rotating, and the sixth operating part can move between the multiple scale values ​​of the sixth scale line group when rotating.

[0041] Furthermore, the first ablation electrode includes an electrode head and an electrode tube, the electrode head is fixedly connected to the end of the electrode tube, the electrode tube has an installation cavity, a water inlet pipe and a water outlet pipe are provided in the installation cavity, the water inlet pipe and the water outlet pipe are connected through the installation cavity, and the water inlet pipe is arranged close to the electrode head, an avoidance space is provided in the electrode head, and a temperature sensor is inserted in the avoidance space.

[0042] Furthermore, the inner wall surface of the electrode tube, the outer surface of the electrode head and the outer surface of the temperature sensor are all provided with a third insulating member.

[0043] When the ablation mechanism of the present application is installed on the ablation device, an electrical connection is achieved between the ablation mechanism and the ablation device through the plug, so that the electrical signal generated by the ablation device is electrically conducted to the ablation mechanism through the plug. After the ablation mechanism receives the electrical signal, an electric field is formed on the lesion site through the first ablation electrode and the second ablation electrode to ablate the lesion site. At the same time, since the first ablation electrode, the first insulating part and the second ablation electrode in the present application are all movably connected to the handle, and the adjustment component is movably provided on the handle and respectively connected to the first ablation electrode, the first insulating part and the second ablation electrode, when the ablation range of the ablation mechanism needs to be adjusted, it is only necessary to move the adjustment component. The adjustment component can drive the first ablation electrode to extend or retract into the first insulating part, and can also drive the first insulating part to extend or retract into the second ablation electrode, and can also drive the second ablation electrode to extend or retract into the second insulating part, thereby changing the exposed length of the first electrode part or the first insulating part or the second electrode part. In this way, when the ablation mechanism is actually used, the ablation mechanism can adjust the exposed length of the first electrode part and / or the second electrode part according to the size of the lesion and the environment around the lesion site, thereby adjusting the ablation area formed on the lesion site, thereby achieving a change in the ablation range, and effectively preventing other tissues outside the lesion site from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0045] Figure 1 A schematic diagram of the structure of the ablation mechanism disclosed in an embodiment of the present application;

[0046] Figure 2 The attached embodiment disclosed in this application Figure 1 Enlarged view of area A in the middle;

[0047] Figure 3 A partial cross-sectional view of the ablation assembly disclosed in an embodiment of the present application;

[0048] Figure 4 This is a schematic structural diagram of the first adjusting component disclosed in an embodiment of the present application;

[0049] Figure 5 A cross-sectional view of a first adjustment component disclosed in an embodiment of the present application;

[0050] Figure 6 This is a schematic structural diagram of a housing with multiple sliders and multiple limit blocks disclosed in an embodiment of the present application;

[0051] Figure 7 This is a schematic structural diagram of the second adjustment component disclosed in an embodiment of the present application;

[0052] Figure 8 A cross-sectional view of a second adjustment component disclosed in an embodiment of the present application;

[0053] Figure 9 This is a schematic structural diagram of a housing with multiple slot groups disclosed in an embodiment of the present application;

[0054] Figure 10 This is a schematic structural diagram of a housing with multiple elastic members disclosed in an embodiment of the present application;

[0055] Figure 11 This is a schematic structural diagram of the first operating unit / second operating unit / third operating unit disclosed in an embodiment of the present application;

[0056] Figure 12 This is a schematic structural diagram of the first elastic member / second elastic member / third elastic member disclosed in an embodiment of the present application.

[0057] The above drawings include the following reference numerals:

[0058] 10. Handle; 101. Accommodation space; 11. Housing; 111. First limit block; 112. Second limit block; 113. Third limit block; 114. First slot group; 115. Second slot group; 116. Third slot group; 12. First scale line group; 13. Second scale line group; 14. Third scale line group; 15. Fourth scale line group; 16. Fifth scale line group; 17. Sixth scale line group;

[0059] 20. Ablation assembly; 201. Mounting cavity; 202. Avoidance space; 21. First ablation electrode; 211. First electrode portion; 212. Electrode head; 213. Electrode tube; 22. Second ablation electrode; 221. Second electrode portion; 23. First insulating member; 231. First insulating member; 24. Second insulating member;

[0060] 30. Adjustment assembly; 31. First adjustment component; 32. Second adjustment component; 33. First adjustment group; 331. First operating portion; 3311. First stopper; 332. First slider; 34. Second adjustment group; 341. Second operating portion; 3411. Second stopper; 342. Second slider; 35. Third adjustment group; 351. Third operating portion; 3511. Third stopper; 352. Third slider; 36. Fourth adjustment group; 361. Fourth operating portion; 362. First snap ring; 363. First elastic member; 37. Fifth adjustment group; 371. Fifth operating portion; 372. Second snap ring; 373. Second elastic member; 38. Sixth adjustment group; 381. Sixth operating portion; 382. Third snap ring; 383. Third elastic member;

[0061] 40. Wire hole; 50. Water inlet pipe; 60. Water outlet pipe; 70. Temperature sensor; 80. Third insulating member; 90. First wire fixing member; 100. Second wire fixing member; 110. Plug. DETAILED DESCRIPTION

[0062] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0063] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0064] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0065] As mentioned in the background art, when ablating tumors or nerves, existing ablation electrodes require different electrodes to be selected based on the size of the ablation area. However, due to the single function of the ablation electrodes in the prior art, the effective length of the ablation electrodes cannot be adjusted according to the size of the target ablation site, thereby causing damage to other tissues outside the target ablation site. To this end, the inventors of this application have designed a new ablation mechanism that can solve the problem of the single function of the ablation electrodes in the prior art and the inability to adjust the effective length of the ablation electrodes according to the size of the target ablation site. The ablation mechanism of this application will be described in detail below with reference to the accompanying drawings.

[0066] It should be noted that the “axial direction of the ablation assembly 20” in this application refers to the Figure 1 The direction indicated by the letter X.

[0067] See also Figures 1 to 12 As shown, according to an embodiment of the present application, an ablation mechanism is provided. The ablation mechanism includes a handle 10 , an ablation component 20 and an adjustment component 30 .

[0068] Specifically, the ablation component 20 is connected to the handle 10, and the ablation component 20 includes a first ablation electrode 21, a second ablation electrode 22, a first insulating member 23 and a second insulating member 24 that are coaxially arranged. The first ablation electrode 21 is movably connected to the handle 10, and the second ablation electrode 22 is movably sleeved on the outer surface of the first ablation electrode 21. The first insulating member 23 is movably sleeved between the first ablation electrode 21 and the second ablation electrode 22, and the second insulating member 24 is sleeved on the outer surface of the second ablation electrode 22; the adjustment component 30 is movably arranged on the handle 10, and the adjustment component 30 is respectively connected to the first ablation electrode 21 and the second ablation electrode 22. electrode 21, a first insulating member 23 and a second ablation electrode 22; wherein, the first ablation electrode 21 has a first electrode portion 211 extending from the first insulating member 23, the first insulating member 23 has a first insulating portion 231 extending from the second ablation electrode 22, and the second ablation electrode 22 has a second electrode portion 221 extending from the second insulating member 24, and the adjustment component 30 is configured to be able to drive the first ablation electrode 21, the first insulating member 23 and the second ablation electrode 22 to move along the axial direction of the ablation component 20 to adjust the exposed length of at least one of the first electrode portion 211 and the second electrode portion 221.

[0069] When the ablation mechanism of the present application is installed on the ablation device, the plug 110 of the ablation mechanism is electrically connected to the ablation device, so that the electrical signal generated by the ablation device is electrically conducted to the ablation mechanism through the plug 110. After the ablation mechanism receives the electrical signal, it forms an electric field on the lesion site through the first ablation electrode 21 and the second ablation electrode 22 to ablate the lesion site. At the same time, since the first ablation electrode 21, the first insulating member 23 and the second ablation electrode 22 in this embodiment are all movably connected to the handle 10, and the adjustment component 30 is movably provided on the handle 10 and respectively connected to the first ablation electrode 21, the first insulating member 23 and the second ablation electrode 22, when it is necessary to adjust the ablation range of the ablation mechanism, it is only necessary to move the adjustment component 30. The adjustment component 30 can drive the first ablation electrode 21 to extend or retract into the first insulating member 23, and can also drive the first insulating member 23 to extend or retract into the second ablation electrode 22. , and can also drive the second ablation electrode 22 to extend or retract into the second insulating part 24, thereby changing the exposed length of the first electrode portion 211 or the first insulating portion 231 or the second electrode portion 221. In this way, when the ablation mechanism is actually used, the ablation mechanism can adjust the exposed length of the first electrode portion 211 and / or the second electrode portion 221 accordingly according to the size of the lesion and the environment around the lesion site, thereby adjusting the ablation area formed on the lesion site, thereby achieving a change in the ablation range and effectively preventing other tissues outside the lesion site from being damaged.

[0070] That is to say, compared with the ablation mechanism in the prior art, this embodiment uses the adjustment component 30 to adjust the length of the first electrode portion 211 exposed from the first insulating member 23 and / or the length of the second electrode portion 221 exposed from the second insulating member 24, thereby adjusting the ablation range of the ablation mechanism during the treatment process. There is no need to replace ablation electrodes of other lengths for ablation treatment, thereby enabling safe and effective ablation treatment of the target ablation site and preventing the ablation mechanism from causing damage to tissues other than the target ablation site. In addition, since the first ablation electrode 21 in this embodiment has a first electrode portion 211 extending from the first insulating member 23, and the second ablation electrode 22 has a second electrode portion 221 extending from the second insulating member 24, with such a configuration, the first insulating member 23 can protect the first ablation electrode 21, and the second insulating member 24 can protect the second ablation electrode 22. Moreover, the configuration of the first insulating member 23 and the second insulating member 24 can ensure that the current only acts at the first electrode portion 211 and the second electrode portion 221, effectively preventing the current from causing unnecessary damage to tissues outside the target ablation site, thereby improving the treatment effect.

[0071] It can be understood that the first insulating part 23 and the second insulating part 24 in this embodiment include an insulating sleeve, the material of which includes ceramic. Ceramics have good heat dissipation performance. While ensuring the insulation performance, it facilitates the heat dissipation of the ablation mechanism, effectively avoids damage to biological tissues caused by high temperature, and effectively ensures the performance of the ablation mechanism.

[0072] Specifically, in this embodiment, the length of the first electrode portion 211 along the axial direction of the ablation component 20 is equal to the length of the second electrode portion 221 along the axial direction of the ablation component 20, and the lengths of the first electrode portion 211 and the second electrode portion 221 along the axial direction of the ablation component 20 are both greater than the length of the first insulating portion 231 along the axial direction of the ablation component 20.

[0073] Further, see Figure 4 as well as Figure 7As shown, the handle 10 in this embodiment includes a shell 11, the shell 11 has an accommodating space 101, at least part of the ablation component 20 is arranged in the accommodating space 101, and the adjustment component 30 includes a first adjustment component 31 or a second adjustment component 32; wherein the first adjustment component 31 is rotatably connected to the shell 11 and is respectively connected to the first ablation electrode 21, the first insulating member 23 and the second ablation electrode 22 in the accommodating space 101, so as to drive the first ablation electrode 21, the first insulating member 23 and the second ablation electrode 22 along the ablation path. The component 20 moves axially to adjust the exposed length of at least one of the first electrode portion 211 and the second electrode portion 221; the second adjusting component 32 is movably clamped to the shell 11 and respectively connected to the first ablation electrode 21, the first insulating member 23 and the second ablation electrode 22 in the accommodating space 101, so as to drive the first ablation electrode 21, the first insulating member 23 and the second ablation electrode 22 to move along the axial direction of the ablation component 20, thereby adjusting the exposed length of at least one of the first electrode portion 211 and the second electrode portion 221.

[0074] Specifically, at least a portion of the ablation assembly 20 in this embodiment is disposed within the accommodating space 101. This configuration facilitates the connection of the adjustment assembly 30 disposed on the housing 11 to the first ablation electrode 21, the first insulating member 23, and the second ablation electrode 22. The adjustment assembly 30 in this embodiment includes a first adjustment component 31 or a second adjustment component 32 with different adjustment methods. Regardless of whether the first adjustment component 31 or the second adjustment component 32 is disposed on the housing 11, both can precisely control the first electrode portion 211 and the second electrode portion 221, effectively ensuring that medical personnel can accurately adjust the exposed length of the first electrode portion 211 and / or the second electrode portion 221 according to different needs during treatment, thereby improving the ablation accuracy of the ablation mechanism.

[0075] That is, when the ablation range of the ablation mechanism needs to be adjusted, it is only necessary to rotate the first adjustment component 31 or move the second adjustment component 32 along the axial direction of the ablation assembly 20 to drive the first ablation electrode 21, the first insulating member 23, and the second ablation electrode 22 to expand and contract along the axial direction of the ablation assembly 20, thereby adjusting the exposed length of at least one of the first electrode portion 211 and the second electrode portion 221. It is understandable that the "adjustment component 30 adjusts the exposed length of at least one of the first electrode portion 211 and the second electrode portion 221" in this embodiment means that the adjustment component 30 can adjust only the exposed length of the first electrode portion 211, only the exposed length of the second electrode portion 221, or simultaneously adjust the exposed lengths of the first electrode portion 211 and the second electrode portion 221.

[0076] Further, see Figures 5 and 6As shown, the first adjustment component 31 in this embodiment includes a first adjustment group 33 , a second adjustment group 34 and a third adjustment group 35 .

[0077] Specifically, the first adjustment group 33 is rotatably connected to the shell 11 and the first ablation electrode 21, and the first adjustment group 33 includes a first operating part 331 and a first slider 332. The first operating part 331 is rotatably sleeved on the outer surface of the shell 11 and the inner wall of the first operating part 331 is threadedly engaged with the outer surface of the shell 11. The first slider 332 is rotatably disposed in the accommodating space 101 and connected between the first operating part 331 and the first ablation electrode 21; the second adjustment group 34 is rotatably connected to the shell 11 and the first insulating member 23, and the second adjustment group 34 includes a second operating part 341 and a second slider 342. The second operating part 341 is rotatably sleeved on the shell 11. 1 and the inner wall of the second operating part 341 is threadedly engaged with the outer surface of the shell 11, the second slider 342 is rotatably disposed in the accommodating space 101 and connected between the second operating part 341 and the first insulating member 23; the third adjustment group 35 is rotatably connected to the shell 11 and the second ablation electrode 22, the third adjustment group 35 includes a third operating part 351 and a third slider 352, the third operating part 351 is rotatably sleeved on the outer surface of the shell 11 and the inner wall of the third operating part 351 is threadedly engaged with the outer surface of the shell 11, the third slider 352 is rotatably disposed in the accommodating space 101 and connected between the third operating part 351 and the second ablation electrode 22.

[0078] Among them, the first adjustment group 33, the second adjustment group 34 and the third adjustment group 35 are arranged in sequence along the axial direction of the ablation component 20; the first operating part 331 is configured to drive the first slider 332 to move along the axial direction of the ablation component 20 when rotating, so that the first ablation electrode 21 can be retracted and contracted in the first insulating part 23, and the exposed length of the first electrode part 211 can be adjusted; the second operating part 341 is configured to drive the second slider 342 to move along the axial direction of the ablation component 20 when rotating, so that the first insulating part 23 can be retracted and contracted in the second ablation electrode 22, and the exposed length of the first insulating part 231 can be adjusted; the third operating part 351 is configured to drive the third slider 352 to move along the axial direction of the ablation component 20 when rotating, so that the second ablation electrode 22 can be retracted and contracted in the second insulating part 24, and the exposed length of the second electrode part 221 can be adjusted.

[0079] Specifically, when it is necessary to adjust the exposed length of the first electrode portion 211, it is only necessary to rotate the first operating portion 331 to accurately control the position of the first ablation electrode 21; when it is necessary to adjust the exposed length of the first insulating portion 231, it is only necessary to rotate the second operating portion 341 to accurately control the position of the first insulating member 23; when it is necessary to adjust the exposed length of the second electrode portion 221, it is only necessary to rotate the third operating portion 351 to accurately control the position of the second ablation electrode 22. The entire first adjustment component 31 has a simple structure and is easy and quick to operate. At the same time, the first operating portion 331, the second operating portion 341 and the third operating portion 351 are all connected to the shell 11 in a threaded manner, which improves the stability of the connection between the first adjustment component 31 and the handle 10, and effectively ensures the accuracy and reliability of the first adjustment component 31 during the ablation mechanism treatment process. It is understandable that in this embodiment, the first slider 332 and the first ablation electrode 21, the second slider 342 and the first insulating member 23, and the third slider 352 and the second ablation electrode 22 can be connected together by gluing or injection molding, which has a simple structure and is easy to process.

[0080] Further, see Figure 5 As shown, the accommodating space 101 in this embodiment is provided with a first limit block 111, a second limit block 112 and a third limit block 113, which are all fixedly mounted on the shell 11 and arranged in sequence along the axial direction of the ablation component 20; a first stop block 3311 is embedded in the first operating part 331, and the first stop block 3311 is arranged close to the first slider 332 and is located on the side of the first slider 332 away from the second slider 342; a second stop block 3411 is embedded in the second operating part 341, and the second stop block 3411 is arranged close to the second slider 342 and is located on the side of the second slider 342 close to the first slider 332; a third stop block 3511 is embedded in the third operating part 351, and the third stop block 3511 is arranged close to the third slider 352 and is located on the side of the third slider 352 close to the second slider 342.

[0081] The first slider 332 is rotatably disposed between the first limit block 111 and the second limit block 112, so as to reciprocate between the first limit block 111 and the second limit block 112 under the drive of the first operating portion 331, so that the first stopper 3311 has a first position abutting against the first limit block 111 and a second position away from the first limit block 111; the second slider 342 is rotatably disposed between the second limit block 112 and the third limit block 113, so as to reciprocate between the first limit block 112 and the second limit block 113 under the drive of the second operating portion 341. The third slider 352 is rotatably disposed between the third limit block 113 and the end of the shell 11, so that the third operating portion 351 can reciprocate between the third limit block 113 and the end of the shell 11, so that the third stopper 3511 has a fifth position abutting against the third limit block 113 and a sixth position away from the third limit block 113.

[0082] Specifically, in this embodiment, the setting of the first limit block 111, the second limit block 112 and the third limit block 113 limits the movement range of the first slider 332, the second slider 342 and the third slider 352, thereby preventing the first slider 332, the second slider 342 and the third slider 352 from excessive displacement under the drive of each operating part, and further preventing the first slider 332, the second slider 342 and the third slider 352 from being damaged, thereby extending the service life of the first adjustment component 31 to a certain extent. At the same time, since the first operating portion 331, the second operating portion 341, and the third operating portion 351 in this embodiment are respectively embedded with the first stopper 3311, the second stopper 3411, and the third stopper 3511, the cooperation between the first stopper 3311 and the first limit block 111, the cooperation between the second stopper 3411 and the second limit block 112, and the cooperation between the third stopper 3511 and the third limit block 113 can achieve accurate control of the positions of the first slider 332, the second slider 342, and the third slider 352, effectively ensuring the stability of the ablation mechanism during treatment. In addition, in this embodiment, by independently controlling the first operating portion 331, the second operating portion 341, and the third operating portion 351, independent control of different sliders can be achieved, thereby improving the accuracy of the operation of the first adjustment component 31.

[0083] Further, see Figure 5As shown, in this embodiment, the first slider 332, the second limit block 112, the second slider 342 and the third limit block 113 are all provided with wire holes 40. Specifically, in this embodiment, the first ablation electrode 21 and the second ablation electrode 22 inserted into the accommodating space 101 need to be electrically connected to the cable in order to receive the electrical signal transmitted by the ablation device, and the provision of the wire holes 40 facilitates the passage of the cables. After the cables pass through the wire holes 40, they are respectively connected to the first ablation electrode 21 and the second ablation electrode 22. The overall structure of the wire holes 40 is simple and easy to process. It can be understood that in this embodiment, the first ablation electrode 21 and the cable, as well as the second ablation electrode 22 and the cable can be fixed together by welding, crimping or bundling.

[0084] Further, see Figures 4 and 5 As shown, at least part of the second operating part 341 in this embodiment covers the first operating part 331 and the third operating part 351, and the first operating part 331, the third operating part 351 and the shell 11 are respectively provided with a first scale line group 12, a second scale line group 13 and a third scale line group 14; wherein, the first scale line group 12, the second scale line group 13 and the third scale line group 14 all include a plurality of scale values ​​arranged along the axial direction of the ablation component 20, the first operating part 331 can move between the multiple scale values ​​of the first scale line group 12 when rotating, the second operating part 341 can move between the multiple scale values ​​of the second scale line group 13 when rotating, and the third operating part 351 can move between the multiple scale values ​​of the third scale line group 14 when rotating.

[0085] Specifically, by covering at least a portion of the second operating portion 341 with the first operating portion 331 and the third operating portion 351, this embodiment can improve the space utilization rate of the outer surface of the housing 11, thereby making the first operating portion 331, the second operating portion 341, and the third operating portion 351 more compactly arranged on the housing 11. At the same time, the arrangement of the first scale line group 12, the second scale line group 13, and the third scale line group 14 in this embodiment can provide an intuitive reference for the operator, allowing the operator to accurately control the position and movement distance of the first operating portion 331, the second operating portion 341, and the third operating portion 351, thereby accurately adjusting the exposed length of the first electrode portion 211, the first insulating portion 231, and the second electrode portion 221, effectively ensuring that the ablation mechanism can perform safe and effective ablation treatment on the target ablation site and preventing the ablation mechanism from causing damage to tissues other than the target ablation site.

[0086] Further, see Figures 7 and 8 as well as Figures 11 to 12 As shown, the second adjustment component 32 in this embodiment includes a fourth adjustment group 36 , a fifth adjustment group 37 and a sixth adjustment group 38 .

[0087] Specifically, the fourth adjustment group 36 is movably clamped to the shell 11 and connected to the first ablation electrode 21. The fourth adjustment group 36 includes a fourth operating part 361, a first snap ring 362 and a first elastic member 363. The first elastic member 363 is arranged in the accommodating space 101 and is connected to the first ablation electrode 21. The first snap ring 362 is arranged in the accommodating space 101 and is sleeved on the first elastic member 363. The fourth operating part 361 is movably arranged on the outer surface of the shell 11 and is fixedly connected to the first snap ring 362; the fifth adjustment group 37 is movably clamped to the shell 11 and connected to the first insulating member 23. The fifth adjustment group 37 includes a fifth operating part 371, a second snap ring 372 and a second elastic member 373. The second elastic member 373 is arranged at The housing 101 is located in the housing 101 and is connected to the first insulating member 23. The second snap ring 372 is arranged in the housing 101 and is sleeved on the second elastic member 373. The fifth operating part 371 is movably arranged on the outer surface of the shell 11 and is connected to the second snap ring 372. The sixth adjustment group 38 is movably clamped to the shell 11 and connected to the second ablation electrode 22. The sixth adjustment group 38 includes a sixth operating part 381, a third snap ring 382 and a third elastic member 383. The third elastic member 383 is arranged in the housing 101 and is connected to the second ablation electrode 22. The third snap ring 382 is arranged in the housing 101 and is sleeved on the third elastic member 383. The sixth operating part 381 is arranged on the outer surface of the shell 11 and is connected to the third snap ring 382.

[0088] Among them, the fourth adjustment group 36, the fifth adjustment group 37 and the sixth adjustment group 38 are arranged in sequence along the axial direction of the ablation component 20; the fourth operating part 361 is configured so that when it moves, the first elastic member 363 moves along the axial direction of the ablation component 20 driven by the first snap ring 362 so that the first ablation electrode 21 is retracted and contracted in the first insulating member 23, thereby adjusting the exposed length of the first electrode portion 211; the fifth operating part 371 is configured so that when it moves, the second elastic member 373 moves along the axial direction of the ablation component 20 driven by the second snap ring 372 so that the first insulating member 23 is retracted and contracted in the second ablation electrode 22, thereby adjusting the exposed length of the first insulating member 231; the sixth operating part 381 is configured so that when it moves, the third elastic member 383 moves along the axial direction of the ablation component 20 driven by the third snap ring 382 so that the second ablation electrode 22 is retracted and contracted in the second insulating member 24, thereby adjusting the exposed length of the second ablation electrode 22.

[0089] Specifically, when the exposed length of the first electrode portion 211 needs to be adjusted, the fourth operating portion 361 only needs to be moved along the axial direction of the ablation component 20 to accurately control the position of the first ablation electrode 21; when the exposed length of the first insulating portion 231 needs to be adjusted, the fifth operating portion 371 only needs to be moved along the axial direction of the ablation component 20 to accurately control the position of the first insulating member 23; when the exposed length of the second electrode portion 221 needs to be adjusted, the sixth operating portion 381 only needs to be moved along the axial direction of the ablation component 20 to accurately control the position of the second ablation electrode 22. The entire second adjustment component 32 has a simple structure and is easy and quick to operate. At the same time, the fourth operating portion 361, the fifth operating portion 371 and the sixth operating portion 381 are all connected to the shell 11 in a snap-fit ​​manner, which improves the stability of the connection between the second adjustment component 32 and the handle 10 and effectively ensures the accuracy and reliability of the second adjustment component 32 during the ablation mechanism treatment process. In addition, the first elastic member 363, the second elastic member 373 and the third elastic member 383 in this embodiment serve as connecting elements, which can be deformed when subjected to external force and return to their original state after the external force is removed, thereby facilitating accurate adjustment of the positions of the first ablation electrode 21, the first insulating member 23 and the second ablation electrode 22 under the drive of the fourth operating part 361, the fifth operating part 371 and the sixth operating part 381.

[0090] It is understood that the first elastic member 363, the second elastic member 373, and the third elastic member 383 in this embodiment all comprise springs. Of course, in other embodiments of the present application, the first elastic member 363, the second elastic member 373, and the third elastic member 383 can also be configured as elastic gaskets, elastic sleeves, or other structures. As long as these other variations are within the scope of protection of the present application, they are all within the scope of protection of the present application. In this embodiment, the first elastic member 363 and the first ablation electrode 21, the second elastic member 373 and the first insulating portion 231, and the third elastic member 383 and the second ablation electrode 22 can all be connected together using adhesive bonding or injection molding, resulting in a simple structure and easy processing.

[0091] Further, see Figure 9As shown, the shell 11 in this embodiment has a first slot group 114 adapted to the first snap ring 362, a second slot group 115 adapted to the second snap ring 372, and a third slot group 116 adapted to the third snap ring 382. The first slot group 114, the second slot group 115 and the third slot group 116 all include multiple slot segments; wherein the fourth operating part 361 can drive the first snap ring 362 to move between the multiple slot segments of the first slot group 114 when moving, the fifth operating part 371 can drive the second snap ring 372 to move between the multiple slot segments of the second slot group 115 when moving, and the sixth operating part 381 can drive the third snap ring 382 to move between the multiple slot segments of the third slot group 116 when moving.

[0092] Specifically, in this embodiment, the cooperation between each snap ring and each slot group makes the operation of each operating part more convenient. It is only necessary to move the fourth operating part 361, the fifth operating part 371 or the sixth operating part 381 respectively to realize the movement of each snap ring in the corresponding slot group, thereby improving the flexibility and adjustability of the second adjustment component 32 and enhancing the stability and reliability of the second adjustment component 32.

[0093] Specifically, see Figure 10 As shown, along the axial direction of the ablation component 20, the length L1 of the slot section of the first slot group 114 in this embodiment and the length L2 of the first elastic member 363 satisfy the relationship: L2>L1. This setting can prevent the first operating part 331 from driving the first elastic member 363 to adjust the position of the first ablation electrode 21 and causing misalignment and jamming.

[0094] Specifically, see Figure 10 As shown, along the axial direction of the ablation component 20, the lengths of the two slot sections of the second slot group 115 in this embodiment are L3 and L4 respectively, and the length of the second elastic member 373 is L5, wherein L3, L4 and L5 satisfy the relationship: L5>L3, and L5>L4. This arrangement can prevent the second operating part 341 from driving the second elastic member 373 to adjust the position of the first insulating part 231 and causing misalignment and jamming.

[0095] Specifically, see Figure 10 As shown, along the axial direction of the ablation component 20, the length L6 of the third slot group 116 in this embodiment and the length L7 of the third elastic member 383 satisfy the relationship: L7>L6. This setting can prevent the third operating part 351 from driving the third elastic member 383 to adjust the position of the second ablation electrode 22 to cause misalignment and jamming.

[0096] Further, see Figure 8As shown, at least part of the fifth operating part 371 in this embodiment covers the fourth operating part 361 and the sixth operating part 381, and the outer surface of the shell 11 has a fourth scale line group 15, a fifth scale line group 16 and a sixth scale line group 17; wherein, the fourth scale line group 15, the fifth scale line group 16 and the sixth scale line group 17 all include a plurality of scale values ​​arranged along the axial direction of the ablation component 20, the fourth operating part 361 can move between the multiple scale values ​​of the fourth scale line group 15 when rotating, the fifth operating part 371 can move between the multiple scale values ​​of the fifth scale line group 16 when rotating, and the sixth operating part 381 can move between the multiple scale values ​​of the sixth scale line group 17 when rotating.

[0097] Specifically, by covering at least a portion of the fifth operating portion 371 with the fourth operating portion 361 and the sixth operating portion 381, this embodiment can improve the space utilization of the outer surface of the housing 11, thereby making the fourth operating portion 361, the fifth operating portion 371, and the sixth operating portion 381 more compactly arranged on the housing 11. Furthermore, the arrangement of the fourth scale line group 15, the fifth scale line group 16, and the sixth scale line group 17 in this embodiment can provide an intuitive reference for the operator, allowing the operator to accurately control the position and movement distance of the fourth operating portion 361, the fifth operating portion 371, and the sixth operating portion 381, thereby accurately adjusting the exposed length of the first electrode portion 211, the first insulating portion 231, and the second electrode portion 221, effectively ensuring that the ablation mechanism can perform safe and effective ablation treatment on the target ablation site and preventing the ablation mechanism from causing damage to tissues other than the target ablation site.

[0098] Further, see Figure 3 As shown, the first ablation electrode 21 in this embodiment includes an electrode head 212 and an electrode tube 213. The electrode head 212 is fixedly connected to the end of the electrode tube 213. The electrode tube 213 has an installation cavity 201. A water inlet pipe 50 and a water outlet pipe 60 are arranged in the installation cavity 201. The water inlet pipe 50 and the water outlet pipe 60 are connected through the installation cavity 201, and the water inlet pipe 50 is arranged close to the electrode head 212. An avoidance space 202 is provided in the electrode head 212, and a temperature sensor 70 is inserted in the avoidance space 202.

[0099] Specifically, the water inlet pipe 50 and the water outlet pipe 60 in this embodiment form a cooling medium circulation system in the installation cavity 201, so that the cooling medium can be transported to the vicinity of the electrode head 212 through the water inlet pipe 50, and then flow out through the water outlet pipe 60. In this process, the heat of the first ablation electrode 21 and the entire ablation mechanism is directly or indirectly absorbed by the cooling medium, so as to prevent the ablation mechanism from overheating. The setting of the avoidance space 202 in this embodiment provides an installation space for the temperature sensor 70, and the limiting step set in the avoidance space 202 can limit the position of the temperature sensor 70 inside the electrode head 212, preventing the temperature sensor 70 from being displaced during the use of the ablation mechanism. The setting of the temperature sensor 70 can monitor the working temperature of the ablation mechanism in real time, and can feed back the monitored temperature information to the ablation device, thereby preventing damage to the ablation mechanism or adverse effects on the treatment effect due to overheating.

[0100] Furthermore, in this embodiment, the inner wall surface of the electrode tube 213 , the outer surface of the electrode head 212 , and the outer surface of the temperature sensor 70 are all provided with a third insulating member 80 .

[0101] Specifically, the third insulating member 80 provided on the inner wall surface of the electrode tube 213 can prevent the current from being conducted through the electrode tube 213 to other functional components in the installation cavity 201. The third insulating member 80 provided on the outer surface of the electrode head 212 and the outer surface of the temperature sensor 70 can protect the electrode head 212 and the temperature sensor 70 from being affected by the cooling medium in the installation cavity 201, thereby ensuring the safe operation of the ablation mechanism and extending the service life of the ablation mechanism. It is understandable that the third insulating member 80 in this embodiment can be an insulating sleeve or an insulating coating. The material of the insulating sleeve can be ceramic, which has good heat dissipation performance, and is convenient for heat dissipation while ensuring insulation performance.

[0102] Further, see Figure 5As shown, when the adjustment assembly 30 in this embodiment includes the first adjustment component 31, a first wire fixing member 90 is further disposed within the housing space 101 of the housing 11. The first wire fixing member 90 is located on the side of the first stop block 111 facing away from the second stop block 112. The first wire fixing member 90 passes through the first stop block 111 and is fixedly connected to the first slider 332. The first wire fixing member 90 has through-holes for the cables, water inlet pipe 50, water outlet pipe 60, and temperature sensor 70 to pass through. Specifically, the provision of the first wire fixing member 90 not only secures the cables, pipes, and other structures, but also guides and protects them from damage or interference. Simultaneously, during rotation of the first operating portion 331, the first wire fixing member 90 moves with the rotation of the first operating portion 331, thereby driving the cables, water inlet pipe 50, and water outlet pipe 60 to follow suit. It is understandable that the first wire fixing member 90 and the first slider 332 in this embodiment can be fixed together by using threading, gluing or welding.

[0103] Further, see Figure 8 As shown, when the adjustment assembly 30 in this embodiment includes the second adjustment component 32, a second wire fixing member 100 is provided at the end of the housing 11 near the fourth adjustment group 36. A wire placement space is defined between the second wire fixing member 100 and the fourth adjustment group 36. The cables, water inlet pipe 50, water outlet pipe 60, and temperature sensor 70 pass through the wire placement space and exit through the through-holes in the second wire fixing member 100. It will be understood that in this embodiment, the cables, water inlet pipe 50, and water outlet pipe 60 are fixedly connected to the through-holes in the second wire fixing member 100 using an interference fit.

[0104] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0105] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0106] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An ablation mechanism, characterized in that: include: handle (10); An ablation assembly (20), the ablation assembly (20) is connected to the handle (10), the ablation assembly (20) comprises a first ablation electrode (21), a second ablation electrode (22), a first insulating member (23) and a second insulating member (24) which are coaxially arranged, the first ablation electrode (21) being movably connected to the handle (10), the second ablation electrode (22) being movably sleeved on the outer surface of the first ablation electrode (21), the first insulating member (23) being movably sleeved between the first ablation electrode (21) and the second ablation electrode (22), and the second insulating member (24) being sleeved on the outer surface of the second ablation electrode (22); an adjusting component (30), the adjusting component (30) being movably disposed on the handle (10), and the adjusting component (30) being respectively connected to the first ablation electrode (21), the first insulating member (23), and the second ablation electrode (22); The first ablation electrode (21) has a first electrode portion (211) extending from the first insulating member (23), the first insulating member (23) has a first insulating portion (231) extending from the second ablation electrode (22), and the second ablation electrode (22) has a second electrode portion (221) extending from the second insulating member (24). The adjustment component (30) is configured to be able to drive the first ablation electrode (21), the first insulating member (23) and the second ablation electrode (22) to move along the axial direction of the ablation component (20) to adjust the exposed length of at least one of the first electrode portion (211) and the second electrode portion (221).

2. The ablation mechanism according to claim 1, characterized in that: The handle (10) comprises a shell (11), the shell (11) has an accommodating space (101), at least a portion of the ablation assembly (20) is disposed in the accommodating space (101), and the adjustment assembly (30) comprises a first adjustment component (31) or a second adjustment component (32); The first adjusting component (31) is rotatably connected to the housing (11) and is respectively connected to the first ablation electrode (21), the first insulating component (23) and the second ablation electrode (22) in the accommodating space (101), so as to drive the first ablation electrode (21), the first insulating component (23) and the second ablation electrode (22) to move along the axial direction of the ablation assembly (20), thereby adjusting the exposed length of at least one of the first electrode portion (211) and the second electrode portion (221); The second adjustment component (32) is movably clamped to the shell (11) and respectively connected to the first ablation electrode (21), the first insulating component (23) and the second ablation electrode (22) in the accommodating space (101), so as to drive the first ablation electrode (21), the first insulating component (23) and the second ablation electrode (22) to move along the axial direction of the ablation component (20) to adjust the exposed length of at least one of the first electrode part (211) and the second electrode part (221).

3. The ablation mechanism according to claim 2, characterized in that: The first adjusting component (31) comprises: a first adjustment group (33), the first adjustment group (33) being rotatably connected to the housing (11) and the first ablation electrode (21), the first adjustment group (33) comprising a first operating portion (331) and a first slider (332), the first operating portion (331) being rotatably sleeved on the outer surface of the housing (11) and the inner wall of the first operating portion (331) being threadedly engaged with the outer surface of the housing (11), the first slider (332) being rotatably disposed in the accommodating space (101) and connected between the first operating portion (331) and the first ablation electrode (21); a second adjustment group (34), the second adjustment group (34) being rotatably connected to the housing (11) and the first insulating member (23), the second adjustment group (34) comprising a second operating portion (341) and a second slider (342), the second operating portion (341) being rotatably sleeved on the outer surface of the housing (11) and the inner wall of the second operating portion (341) being threadedly engaged with the outer surface of the housing (11), the second slider (342) being rotatably disposed in the accommodating space (101) and connected between the second operating portion (341) and the first insulating member (23); a third adjustment group (35), the third adjustment group (35) being rotatably connected to the housing (11) and the second ablation electrode (22), the third adjustment group (35) comprising a third operating portion (351) and a third slider (352), the third operating portion (351) being rotatably sleeved on the outer surface of the housing (11) and the inner wall of the third operating portion (351) being threadedly engaged with the outer surface of the housing (11), the third slider (352) being rotatably disposed in the accommodating space (101) and connected between the third operating portion (351) and the second ablation electrode (22); Wherein, the first adjustment group (33), the second adjustment group (34) and the third adjustment group (35) are arranged in sequence along the axial direction of the ablation component (20); The first operating portion (331) is configured to drive the first slider (332) to move along the axial direction of the ablation assembly (20) when rotating, so as to allow the first ablation electrode (21) to be retracted within the first insulating member (23), thereby adjusting the exposed length of the first electrode portion (211); The second operating portion (341) is configured to drive the second slider (342) to move along the axial direction of the ablation assembly (20) when rotating so as to allow the first insulating member (23) to extend and retract within the second ablation electrode (22), thereby adjusting the exposed length of the first insulating portion (231); The third operating portion (351) is configured to drive the third slider (352) to move along the axial direction of the ablation assembly (20) when rotating so as to allow the second ablation electrode (22) to be retracted within the second insulating member (24) and adjust the exposed length of the second electrode portion (221).

4. The ablation mechanism according to claim 3, characterized in that: A first limiting block (111), a second limiting block (112) and a third limiting block (113) are provided in the accommodating space (101); the first limiting block (111), the second limiting block (112) and the third limiting block (113) are all fixedly mounted on the housing (11) and are sequentially spaced apart along the axial direction of the ablation assembly (20); A first stopper (3311) is embedded in the first operating portion (331), the first stopper (3311) is arranged close to the first slider (332) and is located on the side of the first slider (332) away from the second slider (342); a second stopper (3411) is embedded in the second operating portion (341), the second stopper (3411) is arranged close to the second slider (342) and is located on the side of the second slider (342) close to the first slider (332); a third stopper (3511) is embedded in the third operating portion (351), the third stopper (3511) is arranged close to the third slider (352) and is located on the side of the third slider (352) close to the second slider (342); The first slider (332) is rotatably arranged between the first limiting block (111) and the second limiting block (112), so as to reciprocate between the first limiting block (111) and the second limiting block (112) under the drive of the first operating portion (331), so that the first stopper (3311) has a first position abutting against the first limiting block (111) and a second position away from the first limiting block (111); The second slider (342) is rotatably disposed between the second limiting block (112) and the third limiting block (113), so as to reciprocate between the second limiting block (112) and the third limiting block (113) under the drive of the second operating portion (341), so that the second stopper (3411) has a third position abutting against the second limiting block (112) and a fourth position away from the second limiting block (112); The third slider (352) is rotatably arranged between the third limit block (113) and the end of the housing (11), so as to reciprocate between the third limit block (113) and the end of the housing (11) under the drive of the third operating portion (351), so that the third stopper (3511) has a fifth position abutting against the third limit block (113) and a sixth position away from the third limit block (113).

5. The ablation mechanism according to claim 4, characterized in that: The first sliding block (332), the second limiting block (112), the second sliding block (342) and the third limiting block (113) are all provided with a wire hole (40).

6. The ablation mechanism according to claim 3, characterized in that: At least a portion of the second operating portion (341) covers the first operating portion (331) and the third operating portion (351), and a first scale line group (12), a second scale line group (13), and a third scale line group (14) are respectively provided on the first operating portion (331), the third operating portion (351), and the housing (11); In which, the first scale line group (12), the second scale line group (13) and the third scale line group (14) all include multiple scale values ​​arranged along the axial direction of the ablation component (20), the first operating part (331) can move between the multiple scale values ​​of the first scale line group (12) when rotating, the second operating part (341) can move between the multiple scale values ​​of the second scale line group (13) when rotating, and the third operating part (351) can move between the multiple scale values ​​of the third scale line group (14) when rotating.

7. The ablation mechanism according to claim 2, characterized in that: The second adjusting component (32) comprises: a fourth adjustment group (36), the fourth adjustment group (36) being movably snap-fitted to the housing (11) and connected to the first ablation electrode (21), the fourth adjustment group (36) comprising a fourth operating portion (361), a first snap ring (362) and a first elastic member (363), the first elastic member (363) being arranged in the accommodating space (101) and connected to the first ablation electrode (21), the first snap ring (362) being arranged in the accommodating space (101) and sleeved on the first elastic member (363), the fourth operating portion (361) being movably arranged on the outer surface of the housing (11) and fixedly connected to the first snap ring (362); a fifth adjustment group (37), the fifth adjustment group (37) being movably engaged with the housing (11) and connected to the first insulating member (23), the fifth adjustment group (37) comprising a fifth operating portion (371), a second snap ring (372) and a second elastic member (373), the second elastic member (373) being arranged in the accommodating space (101) and connected to the first insulating member (23), the second snap ring (372) being arranged in the accommodating space (101) and sleeved on the second elastic member (373), the fifth operating portion (371) being movably arranged on the outer surface of the housing (11) and connected to the second snap ring (372); a sixth adjustment group (38), the sixth adjustment group (38) being movably snap-connected to the housing (11) and connected to the second ablation electrode (22), the sixth adjustment group (38) comprising a sixth operating portion (381), a third snap ring (382) and a third elastic member (383), the third elastic member (383) being arranged in the accommodating space (101) and connected to the second ablation electrode (22), the third snap ring (382) being arranged in the accommodating space (101) and sleeved on the third elastic member (383), the sixth operating portion (381) being arranged on the outer surface of the housing (11) and connected to the third snap ring (382); Wherein, the fourth adjustment group (36), the fifth adjustment group (37) and the sixth adjustment group (38) are arranged in sequence along the axial direction of the ablation component (20); The fourth operating portion (361) is configured such that when the fourth operating portion (361) moves, the first elastic member (363) is driven by the first buckle ring (362) to move along the axial direction of the ablation assembly (20) so that the first ablation electrode (21) is retracted within the first insulating member (23), thereby adjusting the exposed length of the first electrode portion (211); The fifth operating portion (371) is configured such that, when moving, the second elastic member (373) is driven by the second snap ring (372) to move along the axial direction of the ablation assembly (20) so that the first insulating member (23) is retracted within the second ablation electrode (22), thereby adjusting the exposed length of the first insulating portion (231); The sixth operating portion (381) is configured such that when it moves, the third elastic member (383) is driven by the third snap ring (382) to move along the axial direction of the ablation assembly (20) so that the second ablation electrode (22) is retracted within the second insulating member (24) to adjust the exposed length of the second ablation electrode (22).

8. The ablation mechanism according to claim 7, characterized in that: The housing (11) has a first slot group (114) adapted to the first snap ring (362), a second slot group (115) adapted to the second snap ring (372), and a third slot group (116) adapted to the third snap ring (382), wherein the first slot group (114), the second slot group (115), and the third slot group (116) each include a plurality of slot segments; Wherein, the fourth operating part (361) can drive the first snap ring (362) to move between the multiple slot segments of the first slot group (114) when it moves, the fifth operating part (371) can drive the second snap ring (372) to move between the multiple slot segments of the second slot group (115) when it moves, and the sixth operating part (381) can drive the third snap ring (382) to move between the multiple slot segments of the third slot group (116) when it moves.

9. The ablation mechanism according to claim 7, characterized in that: At least a portion of the fifth operating portion (371) covers the fourth operating portion (361) and the sixth operating portion (381), and the outer surface of the housing (11) has a fourth scale line group (15), a fifth scale line group (16), and a sixth scale line group (17); In which, the fourth scale line group (15), the fifth scale line group (16) and the sixth scale line group (17) all include multiple scale values ​​arranged along the axial direction of the ablation component (20), the fourth operating part (361) can move between the multiple scale values ​​of the fourth scale line group (15) when rotating, the fifth operating part (371) can move between the multiple scale values ​​of the fifth scale line group (16) when rotating, and the sixth operating part (381) can move between the multiple scale values ​​of the sixth scale line group (17) when rotating.

10. The ablation mechanism according to any one of claims 1 to 9, characterized in that: The first ablation electrode (21) includes an electrode head (212) and an electrode tube (213), wherein the electrode head (212) is fixedly connected to the end of the electrode tube (213), and the electrode tube (213) has an installation cavity (201), wherein a water inlet pipe (50) and a water outlet pipe (60) are arranged in the installation cavity (201), wherein the water inlet pipe (50) and the water outlet pipe (60) are connected through the installation cavity (201), and the water inlet pipe (50) is arranged close to the electrode head (212), and an avoidance space (202) is provided in the electrode head (212), wherein a temperature sensor (70) is inserted in the avoidance space (202).

11. The ablation mechanism according to claim 10, characterized in that: The inner wall surface of the electrode tube (213), the outer surface of the electrode head (212), and the outer surface of the temperature sensor (70) are all provided with a third insulating member (80).

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