A pulsed ablation device

Abstract

The application relates to the technical field of oral ablation, in particular to a pulse ablation device, which comprises an electrode assembly, a first electrode and a second electrode; an electrode ablation device, a containing shell and a support assembly arranged in the containing shell; the first electrode and the second electrode are arranged on the containing shell in a spaced mode, the connecting end of the first electrode and the connecting end of the second electrode are both inserted into the containing shell and are fixedly connected with the first end of the support assembly; a handle device capable of providing current for the electrode ablation device, the second end of the support assembly is connected with the handle device, and a pulse is formed between the first electrode and the second electrode in a current-on state; the connecting end of the first electrode and the connecting end of the second electrode of the application are both inserted into the containing shell and are fixedly connected with the first end of the support assembly, the structure of the electrode assembly is optimized, the installation structure of the electrode assembly is simplified, the connecting end of the electrode assembly is fixedly connected with the support assembly, and then the preparation cost and the installation difficulty are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oral ablation, in particular to a pulse ablation device. BACKGROUND

[0002] The pulse ablation device uses the principle of pulse ablation electric field, mainly applies short and high pulse voltage between two electrodes made of special materials, changes the original membrane potential of cells, generates irreversible nanoscale holes in the lipid bilayer of the membrane, destroys the steady state of cells, and causes the death of cells. Moreover, this ablation method only causes cell death in a specific area, while the integrity of the cell tissue scaffold, fiber structure, etc. can be preserved, and the tissues near the ablation area (such as blood vessels or normal tissues) are not damaged, avoiding the "heat sink effect" of the ablation area, which is beneficial to the repair of the body.

[0003] The pulse ablation device is mainly used for atrial fibrillation treatment, tumor treatment and cardiac electrophysiological disease treatment, and can perform ablation treatment on oral lesion tissue when treating tumors. At present, the structure of the pulse ablation device for the oral cavity is complex and the electrode installation is difficult, which leads to high cost of the pulse ablation device.

[0004] Based on the shortcomings of the prior art, there is an urgent need to research a pulse ablation device to solve the above problems. SUMMARY

[0005] In order to solve the above technical problems, the present application optimizes the structure of the electrode assembly and simplifies the installation structure of the electrode assembly, so that the connecting end of the electrode assembly is clamped and matched with the support assembly, the fixation of the electrode assembly is realized, and the preparation cost and installation difficulty are reduced.

[0006] The present application provides a pulse ablation device, comprising:

[0007] An electrode assembly comprising a first electrode and a second electrode;

[0008] An electrode ablation device comprising a containing shell and a support assembly partially arranged inside the containing shell; the first electrode and the second electrode are arranged on the containing shell with a spacing, and the connecting end of the first electrode and the connecting end of the second electrode both extend into the containing shell and are clamped and fixed with the first end of the support assembly;

[0009] A handle device capable of providing current to the electrode assembly, the second end of the support assembly is connected with the handle device, and a pulse is formed between the first electrode and the second electrode in the energized state.

[0010] Further, one of the connecting end of the electrode assembly or the first end of the support assembly is provided with a connecting site, and the other is provided with a clamping structure matched with the connecting site.

[0011] Further, the support assembly comprises a first circuit board;

[0012] The connecting site is arranged on the first circuit board.

[0013] Further, the first end of the support assembly is provided with a plurality of connecting sites, and the plurality of connecting sites comprise a first connecting site and a second connecting site arranged at intervals;

[0014] The first electrode and the second electrode are both provided with a clamping structure;

[0015] The first connecting site is matched with the clamping structure of the first electrode, and the second connecting site is matched with the clamping structure of the second electrode.

[0016] Further, the pulse ablation device satisfies at least one of the following features:

[0017] The clamping structure of the first electrode comprises at least one group of first pin assemblies arranged at intervals on the first electrode, and the first pin assembly comprises at least two first pins arranged along the circumference of the first electrode;

[0018] The clamping structure of the second electrode comprises at least one group of second pin assemblies arranged at intervals on the second electrode, and the second pin assembly comprises at least two second pins arranged along the circumference of the second electrode.

[0019] Further, the first pin comprises an abutting portion and a connecting portion connected with each other;

[0020] The connecting portion is clamped with the first connecting site, and the abutting portion is electrically connected with the first circuit board.

[0021] Further, the first pin and the second pin are both welded and fixed with the first circuit board;

[0022] The connecting portion of the first pin and the connecting portion of the second pin are both provided with a through hole.

[0023] Further, the pulse ablation device satisfies at least one of the following features:

[0024] The first electrode comprises a first electrode arc surface and a first bending portion, the first bending portion is arranged along the edge of the first electrode arc surface, the first bending portion is bent towards one side of the accommodating shell, and part of the first bending portion extends into the accommodating shell;

[0025] The second electrode comprises a second electrode arc surface and a second bending part, the second bending part is arranged along the edge of the second electrode arc surface, the second bending part is bent towards one side of the accommodating shell and partially extends into the accommodating shell.

[0026] Further, the pulse ablation device satisfies at least one of the following characteristics:

[0027] The arc surface diameter of the first electrode arc surface is 3.3-3.5mm;

[0028] The arc surface diameter of the second electrode arc surface is 96.8-97mm.

[0029] Further, the support assembly further comprises a connecting piece and a support piece;

[0030] The connecting piece is arranged between the first electrode and the first circuit board, and the first electrode and the first circuit board are fixed on the support piece through the connecting piece.

[0031] Further, the connecting piece has a mounting surface and a fixing part extending towards one side of the first circuit board;

[0032] The first circuit board is further provided with a third connecting position, the first end of the support piece is provided with a fourth connecting position, and the second end of the support piece is connected with the handle device;

[0033] The first electrode is connected with the mounting surface, and the fixing part is fixed to the fourth connecting position after passing through the third connecting position, so as to fix the first electrode and the first circuit board on the support piece.

[0034] Further, the electrode ablation device further comprises a first conductive assembly electrically connected with the first electrode and a second conductive assembly electrically connected with the second electrode; and the handle device is provided with an exposed conductive area;

[0035] One end of the first conductive assembly and one end of the second conductive assembly are protruding on the second end of the support assembly, so as to respectively abut against the conductive area of the handle device.

[0036] Further, the handle device comprises a handle shell and a second circuit board;

[0037] The second circuit board is fixedly arranged on one end of the handle shell close to the electrode ablation device;

[0038] The conductive region comprises a first conductive region and a second conductive region which are arranged at intervals on the second circuit board, a first side of the first conductive region and a first side of the second conductive region are electrically connected with a power supply through wires respectively, a second side of the first conductive region is electrically connected with the first conductive component, and a second side of the second conductive region is electrically connected with the second conductive component.

[0039] Further, the first conductive region and / or the second conductive region is a ring-shaped region.

[0040] In the case that the electrode ablation device rotates at any angle relative to the handle device, the first conductive component can abut against the first conductive region, and the second conductive component can abut against the second conductive region.

[0041] Further, the second end of the support component is threadedly connected with the handle device.

[0042] Further, the pulse ablation device satisfies at least one of the following features:

[0043] The thickness of the first electrode is 0.05-0.1 mm.

[0044] The thickness of the second electrode is 0.05-0.1 mm.

[0045] Further, the area ratio of the first electrode to the second electrode is 0.5-1.5.

[0046] Further, the second electrode is arranged around the outer periphery of the first electrode.

[0047] The implementation of the present application has the following beneficial effects:

[0048] After the electrode ablation device in the present application is connected with the handle device, the handle device provides current for the electrode component, so as to form a pulse between the first electrode and the second electrode arranged at intervals, and to perform pulse ablation on oral lesion tissue; the connecting end of the first electrode and the connecting end of the second electrode in the present application both extend into the accommodating housing and are clamped and fixed with the first end of the support component, which optimizes the structure of the electrode component and simplifies the installation structure of the electrode component, so that the connecting end of the electrode component is clamped and matched with the support component, which can realize the fixation of the electrode component, and further reduces the manufacturing cost and the installation difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some of the embodiments of the present application, and for those skilled in the art, on the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0050] Figure 1 The cross-sectional view of the electrode assembly and the electrode ablation device connected in the embodiment;

[0051] Figure 2 The structure view of the electrode assembly and the electrode ablation device connected in the embodiment;

[0052] Figure 3 The exploded view of the electrode assembly and the electrode ablation device in the embodiment;

[0053] Figure 4 The structure view of the handle device in the embodiment;

[0054] Figure 5 The structure view of the first electrode in the embodiment;

[0055] Figure 6 The structure view of the second electrode in the embodiment;

[0056] Figure 7 The structure view of the connecting piece in the embodiment;

[0057] Figure 8 The structure view of the first circuit board in the embodiment;

[0058] Figure 9 The structure view of the support at the first angle in the embodiment;

[0059] Figure 10 The structure view of the support at the second angle in the embodiment;

[0060] Figure 11 The structure view of the second circuit board in the embodiment;

[0061] Figure 12 The structure view of the first conductive assembly in the embodiment.

[0062] In the drawings, the reference signs correspond to:

[0063] 1-electrode ablation device; 2-handle device; 11-first electrode; 12-second electrode; 13-accommodation housing; 14-connector; 15-first circuit board; 16-support; 17-first conductive assembly; 18-second conductive assembly; 21-handle housing; 22-second circuit board; 111-first pin; 112-first electrode arc surface; 113-first bending part; 121-second pin; 122-second electrode arc surface; 123-second bending part; 141-mounting surface; 142-fixing part; 151-first connecting site; 152-second connecting site; 153-third connecting site; 161-fourth connecting site; 221-first conductive area; 222-second conductive area; 1111-abutment part; 1112-connecting part. DETAILED DESCRIPTION

[0064] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0065] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in other than the order illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0066] Referring to the accompanying drawings Figures 1-12 The present embodiment provides a pulse ablation device, comprising: an electrode assembly comprising a first electrode 11 and a second electrode 12; an electrode ablation device 1 comprising an accommodation housing 13 and a support assembly partially disposed inside the accommodation housing 13; the first electrode 11 and the second electrode 12 are spaced apart on the accommodation housing 13, the connecting end of the first electrode 11 and the connecting end of the second electrode 12 both extend into the accommodation housing 13 and are clamped and fixed with the first end of the support assembly; a handle device 2 capable of providing current to the electrode assembly, the second end of the support assembly is connected with the handle device 2, and a pulse is formed between the first electrode 11 and the second electrode 12 in the energized state.

[0067] It should be noted that: after the electrode ablation device 1 in the embodiment is connected with the handle device 2, the handle device 2 provides current for the electrode assembly, so that pulses are formed between the first electrode 11 and the second electrode 12 arranged at intervals, to perform pulse ablation on the oral lesion tissue; the connecting end of the first electrode 11 and the connecting end of the second electrode 12 in the application both extend into the accommodating shell 12 and are clamped and fixed with the first end of the support assembly, which optimizes the structure of the electrode assembly and simplifies the installation structure of the electrode assembly, so that the connecting end of the electrode assembly is clamped and matched with the support assembly, the fixation of the electrode assembly is realized, and the preparation cost and installation difficulty are reduced.

[0068] In the embodiment, the pulse ablation device is mainly used for oral lesion tissue, the electrode ablation device 1 in the pulse ablation device extends into the oral cavity, and the first electrode 11 and the second electrode 12 arranged on the surface of the accommodating shell 13 abut against the oral lesion tissue, so as to realize the ablation of the oral lesion tissue by the pulses formed between the first electrode 11 and the second electrode 12.

[0069] Specifically, the pulses formed between the first electrode 11 and the second electrode 12 can emit pulses with a width of microseconds to the oral lesion tissue, so as to damage the stability of the cell membrane surface of the oral lesion tissue, make a plurality of hydrophilic micropores appear on the cell surface of the oral lesion tissue, destroy the cell homeostasis of the oral lesion tissue, and cause the cell death of the oral lesion tissue, so as to achieve the treatment effect of pulse ablation on the oral lesion tissue.

[0070] It can be understood that different oral tissue cells have different damage thresholds, the size of the pulse energy emitted by the first electrode 11 and the second electrode 12 can make the pulses emitted by the first electrode 11 and the second electrode 12 accurate to the lesion position, and the pulse ablation treatment has tissue cell selectivity; the size of the pulse energy emitted by the first electrode 11 and the second electrode 12 corresponding to the oral lesion tissue cells, and the pulse only performs pulse ablation treatment on the oral lesion tissue cells, without damaging other tissue cells.

[0071] In the embodiment, the shapes of the first electrode 11 and the second electrode 12 are set according to actual conditions, and the first electrode 11 and the second electrode 12 can be any shape.

[0072] Preferably, the first electrode 11 is a circular structure, and the second electrode 12 is an annular structure, and the second electrode 12 is arranged on the outer peripheral side of the first electrode 11 in a ring shape. By arranging the second electrode 12 on the outer peripheral side of the first electrode 11 in a ring shape, it can be ensured that pulses are generated between the first electrode 11 and the second electrode 12 at any position, and the area that can be ablated by the pulse ablation device is increased, so as to improve the ablation treatment efficiency of the pulse ablation device.

[0073] In the embodiment, the electrode ablation device 1 is a bend structure with an included angle, and the included angle ranges from 0 to 180 degrees.

[0074] Preferably, the electrode ablation device 1 forms an included angle of 45 degrees.

[0075] In some possible embodiments, one of the connecting end of the electrode assembly or the first end of the support assembly is provided with a connecting site, and the other is provided with a clamping structure matched with the connecting site. In this way, the connection structure between the electrode assembly and the support assembly can be further simplified, and the installation difficulty of the electrode assembly can be reduced.

[0076] In the embodiment, the connecting site can be a region with at least one connecting hole, a region with at least one connecting slot, or a region with a connecting structure.

[0077] In the embodiment, the specific structure of the support assembly is not limited, as long as the support assembly has a connecting site or a clamping structure matched with the connecting end of the motor assembly.

[0078] In some possible embodiments, the first end of the support assembly is provided with a connecting site, and the connecting end of the electrode assembly is provided with a clamping structure matched with the connecting site.

[0079] In another possible embodiment, the connecting end of the electrode assembly is provided with a connecting site, and the first end of the support assembly is provided with a clamping structure matched with the connecting site.

[0080] In some possible embodiments, the support assembly includes a first circuit board 15, and the connecting site is arranged on the first circuit board 15. By arranging the connecting site on the first circuit board 15, the connecting end of the electrode assembly can be clamped with the first circuit board 15, so as to fix the electrode assembly. In the case of replacing different first electrodes 11 or second electrodes 12 according to different scenes, only the first circuit board 15 with a corresponding connecting site needs to be adaptively replaced, which can make the pulse ablation device in the embodiment adapt to first electrodes 11 and second electrodes 12 of different sizes and shapes, and further improve the adaptability of the pulse ablation device.

[0081] In the embodiment, the specific structure of the first circuit board 15 is not limited, as long as the first circuit board 15 has a connecting site.

[0082] In some possible embodiments, the first end of the support component is provided with multiple connection positions, including first connection positions 151 and second connection positions 152 spaced apart; both the first electrode 11 and the second electrode 12 are provided with snap-fit ​​structures; the first connection position 151 cooperates with the snap-fit ​​structure of the first electrode 11, and the second connection position 152 cooperates with the snap-fit ​​structure of the second electrode 12. By setting the first connection positions 151 and the second connection positions 152 spaced apart, it can be ensured that after the first electrode 11 and the second electrode 12 are snapped and fixed, they will not interfere with each other, ensuring the stability of the connection structure and thus improving the safety of the pulse ablation device.

[0083] In this embodiment, the first connection position 151 is a region consisting of multiple connection holes, the number of connection holes corresponding to the number and position of the first pins 111 of the first electrode 11, and the second connection position 152 is a region consisting of multiple connection holes, the number of connection holes corresponding to the number and position of the second pins 121 of the second electrode 11.

[0084] In this embodiment, the shape of the connecting hole on the first connecting position 151 is arbitrary, and the shape of the connecting hole on the second connecting position 152 is arbitrary; neither is limited in this respect.

[0085] Preferably, the connecting hole on the first connecting position 151 and the connecting hole on the second connecting position 152 are both elongated holes. This arrangement facilitates the processing of the connecting holes, as well as the processing of the first pin 111 and the second pin 121 that mate with them.

[0086] In this embodiment, the shape of the first connection bit 151 region is the same as the shape of the region formed by the first pin assembly, and the shape of the second connection bit 152 region is the same as the shape of the region formed by the second pin assembly.

[0087] When the first electrode 11 has a circular structure and the second electrode 12 has an annular structure, a set of first pin components disposed on the first electrode 11 are arranged along the circumference of the first electrode 11, that is, the first pin components form an annular structure; a set of second pin components disposed on the second electrode 12 are arranged along the circumference of the second electrode 12, that is, the second pin components form an annular structure; that is, both the first connection position 151 and the second connection position 152 are annular regions.

[0088] In some other possible embodiments, when both the first electrode 11 and the second electrode 12 are rectangular structures, a set of first pin assemblies disposed on the first electrode 11 are arranged along the axis of the first electrode 11, that is, the first pin assemblies form a hollow rectangular region, and a set of second pin assemblies disposed on the second electrode 12 are arranged along the circumference of the second electrode 12, that is, the second pin assemblies form a hollow rectangular region.

[0089] In some possible embodiments, the pulse ablation device satisfies at least one of the following features: the snap-fit ​​structure of the first electrode 11 includes at least one set of first pin assemblies spaced apart on the first electrode 11, the first pin assembly including at least two first pins 111, the at least two first pins 111 being arranged along the circumference of the first electrode 11; the snap-fit ​​structure of the second electrode 12 includes at least one set of second pin assemblies spaced apart on the second electrode 12, the second pin assembly including at least two second pins 121, the at least two second pins 121 being arranged along the circumference of the second electrode 12. This arrangement can ensure that the first electrode 11 can be stably connected to the support assembly, and can also ensure that the second electrode 12 can be stably connected to the support assembly, thereby improving the safety of the pulse ablation device.

[0090] In some other possible embodiments, when at least two sets of first pin components are spaced apart on the first electrode 11, a number of first connection bits 151 corresponding to the number of first pin components also need to be provided; specifically, the multiple connection bits include at least two first connection bits 151 spaced apart, that is, each set of first pin components corresponds to one first connection bit 151.

[0091] In this embodiment, each group of second pin components on the second electrode 12 corresponds to a second connection bit 152.

[0092] In this embodiment, the first electrode 11 has a circular structure and the second electrode 12 has a ring structure. The first electrode 11 includes two sets of first pin assemblies and the second electrode 12 includes one set of second pin assemblies.

[0093] In some possible embodiments, the first pin 111 includes an abutment portion 1111 and a connecting portion 1112 connected to each other; the connecting portion 1112 is engaged with the first connecting position 151, and the abutment portion 1111 is electrically connected to the first circuit board 15. By setting the stepped abutment portion 1111 and the connecting portion 1112, the first electrode 11 can be limited, and the first electrode 11 is kept relatively parallel to the end face of the first circuit board 15 when the first electrode 11 is assembled.

[0094] In this embodiment, the structure of the second pin 121 is the same as that of the first pin 111, that is, the second pin is also a stepped structure. The second pin 121 can also limit the second electrode 12 and ensure that the second electrode 12 is relatively parallel to the end face of the first circuit board 15 when the second electrode 12 is assembled.

[0095] In this embodiment, the length of the connecting hole on the first connecting position 151 is less than the width of the abutting part 1111, but greater than the width of the connecting part 1112.

[0096] In this embodiment, along the length direction of the first pin 11, an abutment portion 1111 and a connecting portion 1112 are sequentially provided. The length direction of the first pin 11 is defined as the length direction of the abutment portion 1111 and the length direction of the connecting portion 1112. The width of the abutment portion 1111 is smaller than the width of the connecting portion 1112, so that the abutment portion 1111 can abut against the connecting hole on the first connecting position 151.

[0097] In some possible embodiments, the first pin 111 and the second pin 121 are both soldered and fixed to the first circuit board 15; the connecting portion 1112 of the first pin 111 and the connecting portion of the second pin 121 are both provided with through holes. By providing through holes, it can be ensured that when the pin is soldered to the first circuit board 15, the solder flows through the through holes to form a lateral shearing force, which further ensures the gripping force and connection reliability during soldering.

[0098] In this embodiment, after the first electrode 11 and the second electrode 12 are plugged into the first circuit board 15, the pins are soldered and fixed on the first circuit board 15 to fix the first electrode 11 and the second electrode 12.

[0099] In some other possible embodiments, the first electrode 11 and the second electrode 12 are fixed to the first circuit board 15 by snap-fit ​​or by adhesive bonding.

[0100] In some possible embodiments, the pulse ablation device satisfies at least one of the following features: the first electrode 11 includes a first electrode arc surface 112 and a first bent portion 113, the first bent portion 113 is disposed along the edge of the first electrode arc surface 112, the first bent portion 113 bends toward the receiving housing 13 and partially extends into the receiving housing 13; the second electrode 12 includes a second electrode arc surface 122 and a second bent portion 123, the second bent portion 123 is disposed along the edge of the second electrode arc surface 122, the second bent portion 123 bends toward the receiving housing 13 and partially extends into the receiving housing 13. In this embodiment, the first bent portion 113 and the second bent portion 123 are electrode tips. By partially extending the first bent portion 113 and the second bent portion 123 into the receiving housing 13, it is possible to avoid the phenomenon of arcing or breakdown that easily occurs when the electrode tips are in contact with a medium with different resistance values ​​in the air during use, due to the tip discharge characteristics. Extending into the receiving housing 13 effectively avoids the occurrence of tip discharge.

[0101] In this embodiment, the effective usable area of ​​the first electrode 11 is the first electrode arc surface 112, and the effective usable area of ​​the second electrode 12 is the second electrode arc surface 112.

[0102] In this embodiment, the connection between the first electrode arc surface 112 and the first bend 113 is a rounded corner structure, and the connection between the second electrode arc surface 122 and the second bend 123 is also a rounded corner structure. Under the same working conditions, the rounded corner structure is less likely to cause tip discharge, further avoiding the occurrence of tip discharge.

[0103] Specifically, the diameter of the rounded corner structure is 0.15-0.25mm.

[0104] Preferably, the diameter of the rounded corner structure is 0.2 mm.

[0105] In this embodiment, both the first electrode 11 and the second electrode 12 are made of stainless steel.

[0106] In some possible embodiments, the pulse ablation device satisfies at least one of the following features: the diameter of the arc surface 112 of the first electrode is 3.3-3.5 mm; the diameter of the arc surface 122 of the second electrode is 96.8-97 mm. Setting such a range can ensure the efficiency of ablation treatment of the first electrode 11 and the second electrode 12, and ensure the maximum efficiency of ablation treatment.

[0107] In this embodiment, the diameter of the arc surface 112 of the first electrode is 3.3-3.5mm, 3.3-3.4mm, 3.3-3.5mm or 3.4-3.5mm, etc.

[0108] In this embodiment, the diameter of the second electrode arc surface 122 is 96.8-97mm, 96.8-96.9mm, 96.8-97mm or 96.9-97mm, etc.

[0109] Preferably, the diameter of the first electrode arc surface 112 is 3.33 mm, and the diameter of the second electrode arc surface 122 is 96.8 mm.

[0110] In some possible embodiments, the pulse ablation device satisfies at least one of the following characteristics: the thickness of the first electrode 11 is 0.05-0.1mm; the thickness of the second electrode 12 is 0.05-0.1mm. By setting the above range, the electrode assembly is very thin, and the arc surface of the electrode assembly is easily deformed by force. Therefore, during use, if there are small hard objects on the contact surface, they will cause the arc surface of the electrode assembly to be squeezed and deformed, which will not have a significant impact on the poor adhesion of the contact surface. This is better than the ablation effect of a hard, flat surface without deformation.

[0111] In this embodiment, the thickness of the first electrode 11 is 0.05-0.1mm, 0.05-0.07mm, 0.05-0.08mm, 0.05-0.1mm, 0.06-0.1mm, or 0.08-0.1mm, etc.; the thickness of the second electrode 12 is 0.05-0.1mm, 0.05-0.07mm, 0.05-0.08mm, 0.05-0.1mm, 0.06-0.1mm, or 0.08-0.1mm, etc.

[0112] In some possible embodiments, the area ratio of the first electrode 11 to the area of ​​the second electrode 12 is 0.5-1.5. Setting it within the above range ensures that a pulse is formed between the first electrode 11 and the second electrode 12, while maximizing the pulse intensity formed between the first electrode 11 and the second electrode 12, thereby improving the efficiency of ablation treatment.

[0113] In some possible embodiments, the support assembly further includes a connector 14 and a support 16; the connector 14 is disposed between the first electrode 11 and the first circuit board 15, and the first electrode 11 and the first circuit board 15 are fixed to the support 16 by the connector 14. By providing the mutually cooperating connector 14 and support 16, the first circuit board 15 can be stably fixed to the support 16 by the connector 14, ensuring the installation stability of the first circuit board 15.

[0114] In this embodiment, the housing 13 includes an installation part and a first connecting part that are connected to each other. Both the installation part and the first connecting part have an inner cavity structure, and the inner cavities of the installation part and the first connecting part are connected. The end of the installation part away from the first connecting part is provided with a mating surface and a receiving groove. The first electrode 11 can be accommodated in the receiving groove, and the first pin 111 of the first electrode 11 extends into the inner cavity of the installation part and is snapped and fixed with the first circuit board 15. The second electrode 12 can be fixedly disposed on the mating surface, and the second pin 121 of the second electrode 12 extends into the inner cavity of the installation part and is snapped and fixed with the first circuit board 15.

[0115] Furthermore, the mounting section has a space capable of accommodating one end of the connector 14 and the support 16 away from the handle device 2, and one end of the connector 14 and the support 16 are fixedly disposed in the inner cavity of the mounting section.

[0116] In this embodiment, the shapes of the mounting part and the first connecting part are not limited, as long as the electrode assembly, connector 14 and support 16 can be installed.

[0117] Preferably, both the mounting part and the first connecting part are cylindrical structures, and the diameter of the mounting part is larger than the diameter of the first connecting part.

[0118] In this embodiment, the specific structure of the mounting part is not limited, as long as the mounting part is a detachable structure so that one end of the first circuit board 15, the connector 14 and the support 16 can be installed into the inner cavity of the mounting part; after the above structure is installed in the mounting part, it is welded and fixed to further realize the stability of the overall structure.

[0119] In this embodiment, the support member 16 sequentially includes a second connecting part, a third connecting part, and a fourth connecting part. The second connecting part, the third connecting part, and the fourth connecting part all have an internal cavity capable of accommodating the structure and are interconnected. The fourth connecting position 161 is disposed on the second connecting part. The second connecting part, the third connecting part, and the fourth connecting part are all cylindrical structures. The cross-sectional area of ​​the second connecting part is smaller than the cross-sectional area of ​​the mounting part, the cross-sectional area of ​​the third connecting part is smaller than the cross-sectional area of ​​the fourth connecting part, and the cross-sectional area of ​​the fourth connecting part is equal to the cross-sectional area of ​​the first connecting part.

[0120] In this embodiment, the second and third connecting portions of the support member 16 are disposed inside the housing 13, and the end of the first connecting portion of the housing 13 away from the mounting portion abuts against the fourth connecting portion. When the diameters of the fourth connecting portions are equal, the connection between the support member 16 and the housing 13 is smooth.

[0121] In some possible embodiments, the connector 14 has a mounting surface 141 and a fixing portion 142 extending toward the first circuit board 15; the first circuit board 15 is also provided with a third connection position 153, the first end of the support member 16 is provided with a fourth connection position 161, and the second end of the support member 16 is connected to the handle device 2; the first electrode 11 is connected to the mounting surface 141, and the fixing portion 142 passes through the third connection position 153 and is fixed to the fourth connection position 161, so as to fix the first electrode 11 and the first circuit board 15 on the support member 16. By fixing the fixing portion 142 of the connector 14 to the fourth connection position 161 after passing through the third connection position 153, the connection structure between the connector 14, the first circuit board 15 and the support member 16 is simplified and the manufacturing cost is reduced, while ensuring the connection stability of the connector 14, the first circuit board 15 and the support member 16.

[0122] In this embodiment, the mounting surface 141 is a circular mounting surface, and the fixing part 142 is arranged along the circumference of the mounting surface 141.

[0123] In this embodiment, at least one fixing part 142 is provided on the connector 14 at intervals, and the at least one fixing part 142 is arranged circumferentially along the mounting surface 141.

[0124] In some possible embodiments, the fixing part 142 passes through the third connection position 153 and the fourth connection position 161 in sequence.

[0125] The third connection position 153 is a region consisting of at least one connection hole, and the fourth connection position 161 is a region consisting of at least one connection hole. The connection hole of the third connection position 153 can be of any shape, and the connection hole of the fourth connection position 161 can be of any shape. No limitation is imposed here.

[0126] In this embodiment, the shape of the third connection position 153 region and the shape of the fourth connection position 161 region are the same as the shape of the region formed by at least one fixing part 142, and the shape of the fixing part 142, the connection hole of the third connection position 153 and the connection hole of the fourth connection position 161 are the same.

[0127] In some possible embodiments, the electrode ablation device 1 further includes a first conductive component 17 electrically connected to the first electrode 11 and a second conductive component 18 electrically connected to the second electrode 12; the handle device 2 is provided with an exposed conductive area; one end of the first conductive component 17 and one end of the second conductive component 18 are both protruding from the second end of the support component to abut against the conductive area of ​​the handle device 2, respectively. By protruding the first conductive component 17 and the second conductive component 18 from the second end of the support component, it can be ensured that after the electrode ablation device 1 is connected to the handle device 2, both the first conductive component 17 and the second conductive component 18 can be electrically connected to the conductive area, thereby ensuring that the handle device 2 can provide current to the electrode components to form a pulse between the first electrode 11 and the second electrode 12.

[0128] In this embodiment, the first conductive component 17 includes a first housing with openings at both ends, a first elastic member, and a first conductive member. The first housing is fixed inside the support member 16. One end of the first elastic member abuts against the first opening end of the first housing. The second end of the second elastic member abuts against the first end of the first conductive member. The second end of the second conductive member protrudes from the second opening end of the first housing.

[0129] In this embodiment, the first conductive component 17 and the second conductive component 18 have the same structure, so the structure of the second conductive component 18 will not be described in detail here.

[0130] In some possible embodiments, the handle device 2 includes a handle housing 21 and a second circuit board 22; the second circuit board 22 is fixedly disposed at one end of the handle housing 21 near the electrode ablation device 1; the conductive area includes a first conductive area 221 and a second conductive area 222 spaced apart on the second circuit board 22, the first side of the first conductive area 221 and the first side of the second conductive area 222 are electrically connected to the power supply through wires respectively, the second side of the first conductive area 221 is electrically connected to the first conductive component 17, and the second side of the second conductive area 222 is electrically connected to the second conductive component 18. By spaced the first conductive area 221 and the second conductive area 222 apart, the misconnection of the first electrode 11 and the second electrode 12 can be avoided, thereby preventing the failure to form a pulse between the first electrode 11 and the second electrode 12, and ensuring the stability of the pulse ablation device operation.

[0131] In this embodiment, a flat recess is provided at one end of the handle housing 21, and the second circuit board 22 is disposed in the flat recess. The shape of the second circuit board 22 is adapted to the shape of the flat recess so that the second circuit board 22 will not shift after being installed in the flat recess, thus ensuring the installation stability of the second circuit board 22.

[0132] Specifically, the second circuit board 22 is disposed behind the flat recess, and the second circuit board 22 is glued and fixed to the flat recess.

[0133] In this embodiment, the first side of the first conductive region 221 and the first side of the second conductive region 222 are electrically connected to the positive and negative terminals of the power supply through two wires, respectively.

[0134] In this embodiment, the positive terminal of the power supply, the wire, the first conductive area 221 of the second circuit board 22, the first conductive component 17, the first electrode 11, the second electrode 12, the second conductive component 18, the second conductive area 222 of the second circuit board 22, and the negative terminal of the power supply form a pulse circuit.

[0135] In this embodiment, the handle housing 2 is a housing of arbitrary structure, including a variable diameter housing, which is specifically set according to the actual situation.

[0136] Preferably, the handle housing 2 is a hexagonal housing with a cavity that can accommodate wires. Setting the handle housing 2 as hexagonal can ensure that the pulse ablation device has the maximum space density stacking during packaging.

[0137] In some possible embodiments, the first conductive region 221 and / or the second conductive region 222 are annular regions. When the electrode ablation device 1 rotates at any angle relative to the handle device 2, the first conductive component 17 can abut against the first conductive region 221, and the second conductive component 18 can abut against the second conductive region 222. By making the first conductive region 221 and / or the second conductive region 222 annular regions, it can be ensured that when the electrode ablation device 1 rotates at any angle relative to the handle device 2, the first conductive component 17 can abut against the first conductive region 221, and the second conductive component 18 can abut against the second conductive region 222. This eliminates the need for limiting the pulse ablation device in this embodiment. Simply installing the electrode ablation device 1 on the handle device 2 is sufficient to achieve electrical connection between the first conductive component 17 and the first conductive region 221, and between the second conductive component 18 and the second conductive region 222, further enhancing the stability of the pulse ablation device operation.

[0138] In some other possible embodiments, the first conductive region 221 is a circular region and the second conductive region 222 is an annular region; or both the first conductive region 221 and the second conductive region 222 are annular regions.

[0139] In some possible embodiments, the second end of the support component is threaded to the handle device 2, which makes the pulse ablation device easy to disassemble, and the structure is simple and easy to install.

[0140] Specifically, the handle device 2 has an internal thread at one end with a flat recess, and the support member 16 has an external thread that mates with it. The electrode ablation device 1 is threadedly connected to the handle device 2.

[0141] In other possible embodiments, the second end of the support component is fixed to the handle device 2 by snap-fitting, gluing, or plugging.

[0142] Example 1

[0143] See appendix Figures 1-12This embodiment provides a pulse ablation device, mainly used for oral lesions. The electrode ablation device 1 in the pulse ablation device extends into the oral cavity. The first electrode 11 and the second electrode 12, which are disposed on the surface of the housing 13, are attached to the oral lesion to ablate the oral lesion by the pulse formed between the first electrode 11 and the second electrode 12. The pulse ablation device includes: an electrode assembly, including the first electrode 11 and the second electrode 12; the electrode ablation device 1, including the housing 13 and a support assembly partially disposed inside the housing 13; the first electrode 11 and the second electrode 12 are disposed at intervals on the housing 13, and the connecting ends of the first electrode 11 and the second electrode 12 both extend into the housing 13 and are snapped and fixed to the first end of the support assembly; and a handle device 2 that can provide current to the electrode assembly. The second end of the support assembly is connected to the handle device 2, and a pulse is formed between the first electrode 11 and the second electrode 12 when energized.

[0144] In this embodiment, the first electrode 11 has a circular structure, and the second electrode 12 has an annular structure, with the second electrode 12 arranged around the outer periphery of the first electrode 11.

[0145] In this embodiment, the pulse ablation device satisfies at least one of the following features: the snap-fit ​​structure of the first electrode 11 includes at least one set of first pin assemblies spaced apart on the first electrode 11, the first pin assembly including at least two first pins 111, the at least two first pins 111 being arranged along the circumference of the first electrode 11; the snap-fit ​​structure of the second electrode 12 includes at least one set of second pin assemblies spaced apart on the second electrode 12, the second pin assembly including at least two second pins 121, the at least two second pins 121 being arranged along the circumference of the second electrode 12.

[0146] Specifically, when at least two sets of first pin components are spaced apart on the first electrode 11, a number of first connection bits 151 corresponding to the number of first pin components also need to be provided; specifically, the multiple connection bits include at least two first connection bits 151 spaced apart, that is, each set of first pin components corresponds to one first connection bit 151; each set of second pin components on the second electrode 12 corresponds to one second connection bit 152.

[0147] In this embodiment, the first electrode 11 includes two sets of first pin assemblies, and the second electrode 12 includes a set of second pin assemblies.

[0148] In this embodiment, the first pin 111 includes an abutment portion 1111 and a connecting portion 1112 connected to each other; the connecting portion 1112 is engaged with the first connecting position 151, and the abutment portion 1111 is electrically connected to the first circuit board 15.

[0149] In this embodiment, the structure of the second pin 121 is the same as that of the first pin 111, that is, the second pin is also a stepped structure. The second pin 121 can also limit the second electrode 12 and ensure that the second electrode 12 is relatively parallel to the end face of the first circuit board 15 when the second electrode 12 is assembled.

[0150] In this embodiment, the length of the connecting hole on the first connecting position 151 is less than the width of the abutting part 1111, but greater than the width of the connecting part 1112.

[0151] In this embodiment, along the length direction of the first pin 11, an abutment portion 1111 and a connecting portion 1112 are sequentially provided. The length direction of the first pin 11 is defined as the length direction of the abutment portion 1111 and the length direction of the connecting portion 1112. The width of the abutment portion 1111 is smaller than the width of the connecting portion 1112, so that the abutment portion 1111 can abut against the connecting hole on the first connecting position 151.

[0152] In this embodiment, both the first pin 111 and the second pin 121 are soldered and fixed to the first circuit board 15; both the connecting portion 1112 of the first pin 111 and the connecting portion of the second pin 121 are provided with through holes.

[0153] In this embodiment, after the first electrode 11 and the second electrode 12 are plugged into the first circuit board 15, the pins are soldered and fixed on the first circuit board 15 to fix the first electrode 11 and the second electrode 12.

[0154] In this embodiment, the pulse ablation device satisfies at least one of the following features: the first electrode 11 includes a first electrode arc surface 112 and a first bending portion 113, the first bending portion 113 is disposed along the edge of the first electrode arc surface 112, the first bending portion 113 bends toward the receiving housing 13 and partially extends into the receiving housing 13; the second electrode 12 includes a second electrode arc surface 122 and a second bending portion 123, the second bending portion 123 is disposed along the edge of the second electrode arc surface 122, the second bending portion 123 bends toward the receiving housing 13 and partially extends into the receiving housing 13.

[0155] In this embodiment, the effective usable area of ​​the first electrode 11 is the first electrode arc surface 112, and the effective usable area of ​​the second electrode 12 is the second electrode arc surface 112.

[0156] In this embodiment, the connection between the first electrode arc surface 112 and the first bend 113 is a rounded corner structure, and the connection between the second electrode arc surface 122 and the second bend 123 is also a rounded corner structure. Under the same working conditions, the rounded corner structure is less likely to cause tip discharge, further avoiding the occurrence of tip discharge.

[0157] Specifically, the diameter of the rounded corner structure is 0.15-0.25mm.

[0158] Preferably, the diameter of the rounded corner structure is 0.2 mm.

[0159] In this embodiment, both the first electrode 11 and the second electrode 12 are made of stainless steel.

[0160] In this embodiment, the pulse ablation device satisfies at least one of the following features: the diameter of the first electrode arc surface 112 is 3.3-3.5 mm; and the diameter of the second electrode arc surface 122 is 96.8-97 mm.

[0161] Preferably, the diameter of the first electrode arc surface 112 is 3.33 mm, and the diameter of the second electrode arc surface 122 is 96.8 mm.

[0162] In this embodiment, the pulse ablation device satisfies at least one of the following features: the thickness of the first electrode 11 is 0.05-0.1 mm; the thickness of the second electrode 12 is 0.05-0.1 mm.

[0163] In this embodiment, the area ratio of the first electrode 11 to the area of ​​the second electrode 12 is 0.5-1.5.

[0164] In this embodiment, the electrode ablation device 1 is an angled elbow structure, and the angle formed by the electrode ablation device 1 is 45°.

[0165] In this embodiment, the support component includes a first circuit board 15; the connection position is disposed on the first circuit board 15.

[0166] In this embodiment, the specific structure of the first circuit board 15 is not limited, as long as the first circuit board 15 has connection positions.

[0167] In this embodiment, the first end of the support component is provided with a plurality of connection positions, including a first connection position 151 and a second connection position 152 arranged at intervals; both the first electrode 11 and the second electrode 12 are provided with a snap-fit ​​structure; the first connection position 151 cooperates with the snap-fit ​​structure of the first electrode 11, and the second connection position 152 cooperates with the snap-fit ​​structure of the second electrode 12.

[0168] In this embodiment, the connection position can be a region with at least one connection hole, a region with at least one connection groove, or a region with a connection structure.

[0169] In this implementation, the specific structure of the support component is not limited, as long as the support component has a connection position or snap-fit ​​structure that matches the connection end of the motor component.

[0170] In this embodiment, the first connection position 151 is a region consisting of multiple connection holes, the number of connection holes corresponding to the number and position of the first pins 111 of the first electrode 11, and the second connection position 152 is a region consisting of multiple connection holes, the number of connection holes corresponding to the number and position of the second pins 121 of the second electrode 11.

[0171] In this embodiment, the shape of the connecting hole on the first connecting position 151 is arbitrary, and the shape of the connecting hole on the second connecting position 152 is arbitrary; neither is limited in this respect.

[0172] Preferably, the connecting hole on the first connecting position 151 and the connecting hole on the second connecting position 152 are both elongated holes. This arrangement facilitates the processing of the connecting holes, as well as the processing of the first pin 111 and the second pin 121 that mate with them.

[0173] In this embodiment, the shape of the first connection bit 151 region is the same as the shape of the region formed by the first pin assembly, and the shape of the second connection bit 152 region is the same as the shape of the region formed by the second pin assembly.

[0174] When the first electrode 11 has a circular structure and the second electrode 12 has an annular structure, a set of first pin components disposed on the first electrode 11 are arranged along the circumference of the first electrode 11, that is, the first pin components form an annular structure; a set of second pin components disposed on the second electrode 12 are arranged along the circumference of the second electrode 12, that is, the second pin components form an annular structure; that is, both the first connection position 151 and the second connection position 152 are annular regions.

[0175] In this embodiment, the support assembly further includes a connector 14 and a support 16; the connector 14 is disposed between the first electrode 11 and the first circuit board 15, and the first electrode 11 and the first circuit board 15 are fixed to the support 16 by the connector 14.

[0176] In this embodiment, the housing 13 includes an installation part and a first connecting part that are connected to each other. Both the installation part and the first connecting part have an inner cavity structure, and the inner cavities of the installation part and the first connecting part are connected. The end of the installation part away from the first connecting part is provided with a mating surface and a receiving groove. The first electrode 11 can be accommodated in the receiving groove, and the first pin 111 of the first electrode 11 extends into the inner cavity of the installation part and is snapped and fixed with the first circuit board 15. The second electrode 12 can be fixedly disposed on the mating surface, and the second pin 121 of the second electrode 12 extends into the inner cavity of the installation part and is snapped and fixed with the first circuit board 15.

[0177] Furthermore, the mounting section has a space capable of accommodating one end of the connector 14 and the support 16 away from the handle device 2, and one end of the connector 14 and the support 16 are fixedly disposed in the inner cavity of the mounting section.

[0178] In this embodiment, the shapes of the mounting part and the first connecting part are not limited, as long as the electrode assembly, connector 14 and support 16 can be installed.

[0179] Preferably, both the mounting part and the first connecting part are cylindrical structures, and the diameter of the mounting part is larger than the diameter of the first connecting part.

[0180] In this embodiment, the specific structure of the mounting part is not limited, as long as the mounting part is a detachable structure so that one end of the first circuit board 15, the connector 14 and the support 16 can be installed into the inner cavity of the mounting part.

[0181] In this embodiment, the support member 16 sequentially includes a second connecting part, a third connecting part, and a fourth connecting part. The second connecting part, the third connecting part, and the fourth connecting part all have an internal cavity capable of accommodating the structure and are interconnected. The fourth connecting position 161 is disposed on the second connecting part. The second connecting part, the third connecting part, and the fourth connecting part are all cylindrical structures. The cross-sectional area of ​​the second connecting part is smaller than the cross-sectional area of ​​the mounting part, the cross-sectional area of ​​the third connecting part is smaller than the cross-sectional area of ​​the fourth connecting part, and the cross-sectional area of ​​the fourth connecting part is equal to the cross-sectional area of ​​the first connecting part.

[0182] In this embodiment, the second and third connecting portions of the support member 16 are disposed inside the housing 13, and the end of the first connecting portion of the housing 13 away from the mounting portion abuts against the fourth connecting portion. When the diameters of the fourth connecting portions are equal, the connection between the support member 16 and the housing 13 is smooth.

[0183] In this embodiment, the connector 14 has a mounting surface 141 and a fixing part 142 extending toward the first circuit board 15; the first circuit board 15 is also provided with a third connection position 153, the first end of the support member 16 is provided with a fourth connection position 161, and the second end of the support member 16 is connected to the handle device 2; the first electrode 11 is connected to the mounting surface 141, and the fixing part 142 passes through the third connection position 153 and is fixed to the fourth connection position 161, so as to fix the first electrode 11 and the first circuit board 15 on the support member 16.

[0184] In this embodiment, the mounting surface 141 is a circular mounting surface, and the fixing part 142 is arranged along the circumference of the mounting surface 141.

[0185] In this embodiment, at least one fixing part 142 is provided on the connector 14 at intervals, and the at least one fixing part 142 is arranged circumferentially along the mounting surface 141.

[0186] In this embodiment, the third connection position 153 is a region consisting of at least one connection hole, and the fourth connection position 161 is a region consisting of at least one connection hole. The connection hole of the third connection position 153 can be of any shape, and the connection hole of the fourth connection position 161 can be of any shape. No limitation is imposed here.

[0187] In this embodiment, the shape of the third connection position 153 region and the shape of the fourth connection position 161 region are the same as the shape of the region formed by at least one fixing part 142, and the shape of the fixing part 142, the connection hole of the third connection position 153 and the connection hole of the fourth connection position 161 are the same.

[0188] In this embodiment, the electrode ablation device 1 further includes a first conductive component 17 electrically connected to the first electrode 11 and a second conductive component 18 electrically connected to the second electrode 12; the handle device 2 is provided with an exposed conductive area; one end of the first conductive component 17 and one end of the second conductive component 18 are both protruding from the second end of the support component, so as to abut against the conductive area of ​​the handle device 2 respectively.

[0189] In this embodiment, the first conductive component 17 includes a first housing with openings at both ends, a first elastic member, and a first conductive member. The first housing is fixed inside the support member 16. One end of the first elastic member abuts against the first opening end of the first housing. The second end of the second elastic member abuts against the first end of the first conductive member. The second end of the second conductive member protrudes from the second opening end of the first housing.

[0190] In this embodiment, the first conductive component 17 and the second conductive component 18 have the same structure, so the structure of the second conductive component 18 will not be described in detail here.

[0191] In this embodiment, the handle device 2 includes a handle housing 21 and a second circuit board 22; the second circuit board 22 is fixedly disposed at one end of the handle housing 21 near the electrode ablation device 1; the conductive area includes a first conductive area 221 and a second conductive area 222 spaced apart on the second circuit board 22, the first side of the first conductive area 221 and the first side of the second conductive area 222 are electrically connected to the power supply through wires respectively, the second side of the first conductive area 221 is electrically connected to the first conductive component 17, and the second side of the second conductive area 222 is electrically connected to the second conductive component 18.

[0192] In this embodiment, a flat recess is provided at one end of the handle housing 21, and the second circuit board 22 is disposed in the flat recess. The shape of the second circuit board 22 is adapted to the shape of the flat recess so that the second circuit board 22 will not shift after being installed in the flat recess, thus ensuring the installation stability of the second circuit board 22.

[0193] Specifically, the second circuit board 22 is disposed behind the flat recess, and the second circuit board 22 is glued and fixed to the flat recess.

[0194] In this embodiment, the first side of the first conductive region 221 and the first side of the second conductive region 222 are electrically connected to the positive and negative terminals of the power supply through two wires, respectively.

[0195] In this embodiment, the positive terminal of the power supply, the wire, the first conductive area 221 of the second circuit board 22, the first conductive component 17, the first electrode 11, the second electrode 12, the second conductive component 18, the second conductive area 222 of the second circuit board 22, and the negative terminal of the power supply form a pulse circuit.

[0196] In this embodiment, the handle housing 2 is a housing of arbitrary structure, including a variable diameter housing, which is specifically set according to the actual situation.

[0197] Preferably, the handle housing 2 is a hexagonal housing with a cavity that can accommodate wires. Setting the handle housing 2 as hexagonal can ensure that the pulse ablation device has the maximum space density stacking during packaging.

[0198] In this embodiment, the first conductive region 221 is a circular region, and the second conductive region 222 is an annular region. When the electrode ablation device 1 rotates at any angle relative to the handle device 2, the first conductive component 17 can abut against the first conductive region 221, and the second conductive component 18 can abut against the second conductive region 222.

[0199] In this embodiment, the second end of the support component is threadedly connected to the handle device 2.

[0200] Specifically, the handle device 2 has an internal thread at one end with a flat recess, and the support member 16 has an external thread that mates with it. The electrode ablation device 1 is threadedly connected to the handle device 2.

[0201] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

[0202] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0203] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A pulse ablation device, characterized in that, include: The electrode assembly includes a first electrode (11) and a second electrode (12), wherein the second electrode (12) is disposed around the outer periphery of the first electrode (11); The electrode ablation device (1) includes a housing (13) and a support assembly partially disposed inside the housing (13); a first electrode (11) and a second electrode (12) are disposed at intervals on the housing (13), and the connecting ends of the first electrode (11) and the second electrode (12) both extend into the housing (13) and are snapped and fixed to the first end of the support assembly; the first electrode (11) includes a first electrode arc surface (112) and a first bend (113), the first bend... (113) is provided along the edge of the first electrode arc surface (112), the first bent portion (113) bends toward the receiving housing (13) and extends partially into the receiving housing (13); the second electrode (12) includes a second electrode arc surface (122) and a second bent portion (123), the second bent portion (123) is provided along the edge of the second electrode arc surface (122), the second bent portion (123) bends toward the receiving housing (13) and extends partially into the receiving housing (13); The first end of the support component is provided with a connection position, and the connection end of the electrode component is provided with a snap-fit ​​structure that cooperates with the connection position. The support assembly includes a connector (14), a first circuit board (15), and a support (16); the connection position is disposed on the first circuit board (15); the connector (14) is disposed between the first electrode (11) and the first circuit board (15), and the first electrode (11) and the first circuit board (15) are fixed on the support (16) by the connector (14); The first end of the support component is provided with a plurality of connection positions, including a first connection position (151) and a second connection position (152) spaced apart; both the first electrode (11) and the second electrode (12) are provided with snap-fit ​​structures along their respective circumferences; the first connection position (151) cooperates with the snap-fit ​​structure of the first electrode (11), and the second connection position (152) cooperates with the snap-fit ​​structure of the second electrode (12); A handle device (2) capable of providing current to the electrode assembly, the second end of the support assembly being connected to the handle device (2), and a pulse being formed between the first electrode (11) and the second electrode (12) in the energized state.

2. The pulse ablation device according to claim 1, characterized in that, The pulse ablation device satisfies at least one of the following characteristics: The snap-fit ​​structure of the first electrode (11) includes at least one set of first pin assemblies spaced apart on the first electrode (11), the first pin assembly including at least two first pins (111) arranged along the circumference of the first electrode (11); The snap-fit ​​structure of the second electrode (12) includes at least one set of second pin assemblies spaced apart on the second electrode (12), the second pin assembly including at least two second pins (121) arranged along the circumference of the second electrode (12).

3. The pulse ablation device according to claim 2, characterized in that, The first pin (111) includes an abutment portion (1111) and a connection portion (1112) that are connected to each other. The connecting part (1112) engages with the first connecting position (151), and the abutting part (1111) is electrically connected to the first circuit board (15).

4. The pulse ablation device according to claim 3, characterized in that, Both the first pin (111) and the second pin (121) are soldered and fixed to the first circuit board (15); Both the connection portion (1112) of the first pin (111) and the connection portion of the second pin (121) are provided with through holes.

5. The pulse ablation device according to claim 1, characterized in that, The pulse ablation device satisfies at least one of the following characteristics: The diameter of the arc surface of the first electrode (112) is 3.3-3.5 mm; The diameter of the second electrode arc surface (122) is 96.8-97 mm.

6. The pulse ablation device according to claim 1, characterized in that, The connector (14) has a mounting surface (141) and a fixing part (142) extending toward the first circuit board (15). The first circuit board (15) is also provided with a third connection position (153), the first end of the support member (16) is provided with a fourth connection position (161), and the second end of the support member (16) is connected to the handle device (2). The first electrode (11) is connected to the mounting surface (141), and the fixing part (142) passes through the third connection position (153) and is fixed to the fourth connection position (161) to fix the first electrode (11) and the first circuit board (15) on the support member (16).

7. The pulse ablation device according to any one of claims 1-4, characterized in that, The electrode ablation device (1) further includes a first conductive component (17) electrically connected to the first electrode (11) and a second conductive component (18) electrically connected to the second electrode (12); the handle device (2) is provided with an exposed conductive area; One end of the first conductive component (17) and one end of the second conductive component (18) are both protruding from the second end of the support component, so as to abut against the conductive area of ​​the handle device (2) respectively.

8. The pulse ablation device according to claim 7, characterized in that, The handle device (2) includes a handle housing (21) and a second circuit board (22); The second circuit board (22) is fixedly disposed at one end of the handle housing (21) near the electrode ablation device (1); The conductive area includes a first conductive area (221) and a second conductive area (222) spaced apart on the second circuit board (22). The first side of the first conductive area (221) and the first side of the second conductive area (222) are electrically connected to the power supply through wires respectively. The second side of the first conductive area (221) is electrically connected to the first conductive component (17), and the second side of the second conductive area (222) is electrically connected to the second conductive component (18).

9. The pulse ablation device according to claim 8, characterized in that, The first conductive region (221) and / or the second conductive region (222) are annular regions; When the electrode ablation device (1) rotates at any angle relative to the handle device (2), the first conductive component (17) can abut against the first conductive area (221), and the second conductive component (18) can abut against the second conductive area (222).

10. The pulse ablation device according to claim 9, characterized in that, The second end of the support component is threadedly connected to the handle device (2).

11. The pulse ablation device according to any one of claims 1-4, characterized in that, The pulse ablation device satisfies at least one of the following characteristics: The thickness of the first electrode (11) is 0.05-0.1 mm; The thickness of the second electrode (12) is 0.05-0.1 mm.

12. The pulse ablation device according to any one of claims 1-4, characterized in that, The area ratio of the first electrode (11) to the area of ​​the second electrode (12) is 0.5-1.5.

Images