A radio frequency ablation system

Abstract

The application discloses a radio frequency ablation system, which comprises an ablation component, the ablation component comprises a puncture component for establishing a channel, a puncture removal component installed on the puncture component and an electrode cutter head installed on the puncture removal component; wherein the puncture removal component comprises a puncture removal guide fixed on the puncture component and a puncture removal handle located at the middle position of the upper end of the puncture removal guide, the puncture removal guide comprises a first puncture removal guide or a second puncture removal guide, the side surface of the first puncture removal guide abuts on the puncture component, at least one end of the second puncture removal guide is buckled on the puncture component, the puncture removal handle is used for inserting the ablation end of the electrode cutter head and penetrating out from the far end of the puncture removal handle. In the application, the puncture removal guide is fixed on the puncture component, and the puncture component, the puncture removal component and the electrode cutter head form a structure stable whole, so that the electrode cutter head can keep stable and accurately ablate in the ablation process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radio frequency ablation systems, in particular to a radio frequency ablation system. BACKGROUND

[0002] Radiofrequency ablation of intraosseous nerves is a minimally invasive interventional therapy technique, mainly used for relieving chronic bone pain, such as knee osteoarthritis, vertebral pain, sacroiliac joint pain, etc. This technique precisely targets intraosseous sensory nerves, uses radiofrequency energy to generate heat effect, and blocks the conduction of pain signals, thereby achieving long-term analgesic effect. Traditional treatment methods for chronic bone joint pain (such as osteoarthritis and osteoporotic pain) include drug analgesia, physical therapy, joint cavity injection and surgical intervention, etc., but some patients do not respond well to conservative treatment, or cannot tolerate surgical risks. Under this background, minimally invasive interventional techniques have gradually become an important choice for pain management.

[0003] Radiofrequency ablation technology was first applied to the treatment of neuropathic pain and spinal joint pain, and with the progress of image-guided technology, its application range has been extended to precise intervention of intraosseous nerves. The core principle of radiofrequency ablation technology is to use high-frequency alternating current to generate controllable heat energy at the electrode tip, block the conduction function of pain fibers, and at the same time avoid damage to motor nerves. Among them, the bending arc and or the depth of the ablation assembly implanted in the bone are difficult to control in actual use, and the split ablation assembly is easy to affect the ablation range due to the structural stability, resulting in difficulty in controlling the precision of the ablation range, which in turn will excessively damage the normal intraosseous nerves. In order to guarantee the stability of the overall structure of the ablation assembly, and realize the precise and controllable ablation target and range, a radio frequency ablation system is proposed. SUMMARY

[0004] The purpose of the present application is to solve the technical problem of precise and controllable ablation range of the split ablation assembly in the prior art, and thus a radio frequency ablation system is proposed.

[0005] In order to achieve the above object, the present application adopts the following technical scheme: a radio frequency ablation system, comprising an ablation component, wherein the ablation component is an ablation end or an ablation assembly of radio frequency ablation, and the ablation component selectively destroys nerve fibers to block pain conduction by generating heat through high-frequency current; the ablation component comprises a puncture component, a cannula component installed on the puncture component, and an electrode cutter head installed on the cannula component, wherein the ablation end of the electrode cutter head is out of the distal end of the cannula component, and the distal end of the cannula component is out of the distal end of the puncture component; wherein the puncture component is used to establish a channel for being placed into the bone; wherein the cannula component comprises a cannula guide installed on the puncture component and a cannula handle located at the middle part of the upper end of the cannula guide, and the cannula guide is used to control the bending curvature and / or the depth of being placed into the bone of the distal end of the cannula handle; the cannula guide comprises a first cannula guide or a second cannula guide, the side surface of the first cannula guide abuts against the puncture component, and at least one end of the second cannula guide is buckled to the puncture component; wherein the cannula handle is used to insert the ablation end of the electrode cutter head and make the ablation end out of the distal end of the cannula handle, and also make one end of the electrode cutter head out of the puncture component, wherein the cannula handle is used to limit the depth and / or the bending curvature of the ablation end of the electrode cutter head being placed into the bone, and the ablation end of the electrode cutter head synchronously follows the cannula handle to be cannulated.

[0006] Preferably, the ablation end of the electrode cutter head is used to be placed into the bone; the electrode cutter head comprises a third handle and an electrode tube, the distal end of the third handle is installed with the electrode tube, and the distal end of the electrode tube is installed with an electrode head; the cannula handle comprises a first tube sleeve inserted into the puncture component, a second tube sleeve sleeved on the first tube sleeve, a limiting disc arranged at the proximal end of the second tube sleeve, and a second handle arranged at the proximal end of the limiting disc; wherein the second tube sleeve is used to be inserted into the first cannula guide or the second cannula guide; wherein a cavity is arranged between the second tube sleeve and the first tube sleeve, and a guide rail is arranged on the inner wall of the second tube sleeve and placed in the cavity; in this embodiment, the guide rail is inserted into the side surface of the cannula guide, and the guide rail makes the angle of the cannula handle adjustable under the limitation of the side wall of the cannula guide.

[0007] Preferably, the puncture component is used to install the cannula handle, wherein the puncture component comprises a puncture catheter and a first handle fixed at the proximal end of the puncture catheter, wherein the puncture catheter is used to establish a puncture channel; wherein a first opening is arranged at the middle part of the upper end of the first handle, a first through hole is arranged at the bottom end of the first opening, the first through hole and the puncture catheter are in communication with each other, and the cannula guide is fixed in the first opening. In the further optional implementation of this embodiment, the groove bottom of the first opening is further provided with a first protruding part in a columnar structure, and a first through hole is arranged at the end of the first protruding part, so that the first protruding part and the puncture catheter are in communication with each other.

[0008] Preferably, the first insertion guide comprises a housing installed in the first opening and a guide tube arranged inside the housing, and a second opening for placing the guide rail is arranged on the curved surface of the guide tube, wherein the number of the second openings is at least one, and the number of the second openings is increased in the embodiment to enable the guide rail inside the second sleeve to be selectively inserted into the second opening, wherein the second opening is used to limit the orientation of the distal end of the first sleeve, thereby achieving the adjustment of the bending direction of the distal end of the first sleeve; wherein the guide tube is used to guide the distal end of the housing and facilitate the insertion of the first sleeve into the puncture part; wherein the housing is used to install the second sleeve and place the second sleeve inside the housing; wherein the outer diameter of the guide tube is not greater than the inner diameter of the second sleeve, so that the second sleeve can be easily separated from the guide tube.

[0009] Further, the groove bottom of the first opening is also provided with a first protruding part in a columnar structure, the outer diameter of the first protruding part is not greater than the inner diameter of the guide tube, so that the first protruding part has a guiding function for the guide tube, wherein the first protruding part can also fix the guide tube through surface contact, thereby achieving the fixation of the first insertion guide; the first insertion guide further comprises a first insertion fixing part for assisting in fixing the housing, the first insertion fixing part comprises a cover body and an elastic clamping plate arranged at the side end of the cover body; wherein the middle part of the cover body is provided with a fourth through hole for penetrating the second sleeve; wherein the distal end of the elastic clamping plate is connected with the cover body, and the proximal end of the elastic clamping plate is outwardly inclined, and the elastic clamping plate is used to abut against the side wall of the first opening, so that the cover body is fixed firmly in the first opening. In the embodiment, the first insertion guide inserts the electrode knife head in a stable and controllable manner by arranging the elastic clamping plate or the first protruding part.

[0010] Preferably, the bottom end of the first protruding part is provided with a first recess; the first insertion guide further comprises a first rotating sleeve for driving the movement of the second sleeve, a pressing ring for supporting the first rotating sleeve, and a snap ring for connecting the first rotating sleeve and the pressing ring, wherein the snap ring is used to connect the pressing ring and the first rotating sleeve to form an integral whole; wherein the outer surface of the second sleeve is provided with external threads, and the first rotating sleeve is threadedly connected with the external threads; in the embodiment, the cover body is used to press the first rotating sleeve to move the pressing ring to the bottom end of the first opening, wherein the pressing ring moving towards the bottom end of the first opening extrudes the buckling part of the guide tube, and the buckling part of the guide tube abuts in the first recess, thereby fixing the lower end of the guide tube on the first handle.

[0011] Preferably, the first rotating sleeve lower end is provided with a fifth through hole; the outer curved surface of the snap ring is provided with a fourth groove in annular structure, so that the distal end inner wall of the first rotating sleeve is embedded in the fourth groove; the fourth groove is further provided with a lower pressing ring inside, the inner wall of the lower pressing ring is provided with a third groove in axial section in a stepped shape, and the proximal end inner wall of the lower pressing ring is embedded in the fourth groove; the inner wall of the lower pressing ring is provided with a fifth protruding part; the outer curved surface of the penetrating guide tube is provided with a first channel, the distal end of the first channel is provided with a first buckle joint, and the first buckle joint can be bent inward under pressure; the fifth protruding part in the embodiment is used for extruding the first buckle joint, so that the first buckle joint is bent radially to the penetrating guide tube; the inner wall of the penetrating guide tube is provided with a second buckle joint, the second buckle joint and the first buckle joint are arranged opposite to each other; the first groove is used for clamping the second buckle joint; the size of the fifth protruding part on the lower pressing ring and the first channel is matched, the number of the first channel is at least one; when the fifth protruding part extrudes the first buckle joint, the second buckle joint is embedded in the first groove, and the penetrating guide tube is fixed on the first protruding part; thus, the fixation of the first penetrating guide and the puncture component is realized, and the first penetrating guide penetrates the electrode knife head in a stable and controllable manner.

[0012] Preferably, the inner wall of the penetrating guide tube is also provided with a second channel, and the second buckle joint is located at the distal end of the second channel; under the action of the second channel without extrusion by external force, the second buckle joint and the first protruding part are separated from each other, that is, the second buckle joint is arranged outside the first groove.

[0013] Preferably, the both ends of the first handle are provided with butterfly-shaped grooves; the butterfly-shaped grooves are arranged to reduce the overall mass of the first handle and enable the butterfly-shaped grooves to clamp the second penetrating guide; the second penetrating guide includes a penetrating bottom plate mounted on the puncture component, a second rotating sleeve located above the penetrating bottom plate, a support frame mounted on the penetrating bottom plate, and sixth protruding parts located at both ends of the penetrating bottom plate; the sixth protruding parts are used for clamping in the butterfly-shaped grooves of the first handle, so that the second penetrating guide is fixed on the first handle. The penetrating bottom plate of the second penetrating guide in the embodiment is equivalent to the shell of the first penetrating guide, that is, the penetrating bottom plate is equivalent to the shell.

[0014] Further, the support frame is in U-shaped structure, the proximal end of the support frame is provided with the second sleeve, and the proximal end of the support frame is abutted on the limiting disc; the support frame is fixed on the penetrating base plate through the setting of the bending rod; the bending rod is the support part of the support frame; the second rotating sleeve is connected with the second sleeve through internal threads.

[0015] Further, the two sixth protruding parts fixed on the first handle are respectively clamped in the butterfly-shaped grooves at the two ends of the first handle, and the two sixth protruding parts are symmetrically arranged at the two ends of the penetrating base plate; one end of the sixth protruding part is provided with a fifth groove with an opening direction towards the butterfly-shaped groove, and the inside of the fifth groove is provided with a second top block and a first spring with end portions abutting each other, wherein one end of the first spring is abutted on the groove bottom of the fifth groove; one end of the second top block is provided with a columnar protruding part with a flat cutting surface, the flat cutting surface of the columnar protruding part is abutted on the inner wall of the butterfly-shaped groove, and the top end of the columnar protruding part is abutted at the top corner of the butterfly-shaped groove and is arranged close to the top end of the first opening; one end of the sixth protruding part is provided with a sixth groove, and the inside of the sixth groove is provided with a first top block and a second spring with end portions abutting each other, one end of the first top block is connected with a pressing handle, and the first top block is radially out of the second top block to limit the axial movement position of the second top block; the middle part of the first top block is provided with a trapezoidal groove, so that the inclined surface of the first top block is abutted on the second top block; the inclined surface is arranged on the first top block through the setting of the trapezoidal groove on the first top block, the inclined surface of the first top block is abutted on the second top block, the inclined surface of the first top block is pressed to the second top block by moving the first top block, so that the position of the columnar protruding part at the end of the second top block is synchronously adjusted, and thus the penetrating base plate is fixed or separated from the first handle.

[0016] Preferably, the ablation system further comprises an ablation host, the ablation host is used for controlling the ablation component to output radio frequency energy; the ablation host and the electrode knife head are connected with a wire, the proximal end of the wire is provided with an output connector, and the proximal end of the output connector is mounted on the ablation host; the output temperature, time or power of the electrode knife head is respectively controlled under the control of the ablation host.

[0017] Beneficial effects: the radio frequency ablation system in the application includes an ablation component for intraosseous ablation, the ablation component includes a puncture component for establishing a channel, a reaming component mounted on the puncture component, and an electrode cutter head mounted on the reaming component, the reaming component includes a first reaming guide abutting on the puncture component on the side or a second reaming guide with an end buckling on the puncture component, by fixing the reaming guide on the puncture component, the puncture component, the reaming component and the electrode cutter head form a structurally stable whole, so that the electrode cutter head remains stable and accurately performs ablation during the ablation process; through the fixation of the reaming guide, the bending arc of the distal end of the reaming handle and / or the depth of insertion into the bone can be stably controlled during the reaming process, wherein the ablation end of the electrode cutter head follows the distal end of the reaming handle for synchronous reaming, thereby enabling the ablation component to accurately control the ablation target and range. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective view of an ablation device of a radio frequency ablation system according to the present application is provided.

[0019] Figure 2 A perspective view of a partial structure of an ablation component of a radio frequency ablation system according to the present application is provided.

[0020] Figure 3 A perspective view of a first reaming guide of an ablation component of a radio frequency ablation system according to the present application is provided.

[0021] Figure 4 A perspective view of a puncture component of an ablation component of a first radio frequency ablation system according to the present application is provided.

[0022] Figure 5 A perspective view of a puncture component of an ablation component of a second radio frequency ablation system according to the present application is provided.

[0023] Figure 6 A perspective view of an ablation component of a radio frequency ablation system according to the present application is provided.

[0024] Figure 7 An elevation view of an ablation component of a radio frequency ablation system according to the present application is provided.

[0025] Figure 8 A perspective view of a partial structure of an ablation component of a radio frequency ablation system according to the present application is provided. Figure 7 A cross-sectional view of A-A of the ablation component of the radio frequency ablation system according to the present application is provided.

[0026] Figure 9 An enlarged view of C of the ablation component of the radio frequency ablation system according to the present application is provided. Figure 8 An enlarged view of C of the ablation component of the radio frequency ablation system according to the present application is provided.

[0027] Figure 10 A perspective view of a partial structure of an ablation component of a radio frequency ablation system according to the present application is provided.

[0028] Figure 11 Figure 3 is a perspective view of a piercing member of an ablation member of a radiofrequency ablation system according to the present invention;

[0029] Figure 12 Figure 4 is an exploded view of a partial structure of an ablation member of a radiofrequency ablation system according to the present invention;

[0030] Figure 13 Figure 5 is a cross-sectional view of the ablation member of Figure 4 taken along line E-E thereof; Figure 12

[0031] Figure 14 Figure 6 is an exploded view of a partial structure of an ablation member of a radiofrequency ablation system according to the present invention;

[0032] Figure 15 Figure 7 is a perspective view of an ablation member of a radiofrequency ablation system according to the present invention;

[0033] Figure 16 Figure 8 is a perspective view of a partial structure of an ablation member of a radiofrequency ablation system according to the present invention;

[0034] Figure 17 Figure 9 is a right side view of a partial structure of an ablation member of a radiofrequency ablation system according to the present invention;

[0035] Figure 18 Figure 10 is a cross-sectional view of the ablation member of Figure 9 taken along line D-D thereof; Figure 17

[0036] Figure 11 is a cross-sectional view of the ablation member of Figure 9 taken along line B-B thereof; Figure 19 Figure 17 Figure 12 is an enlarged view of F of Figure 11;

[0037] Figure 20 Figure 19 Figure 13 is an enlarged view of G of Figure 11;

[0038] Figure 21 Figure 14 is a perspective view of a structure of a radiofrequency ablation system according to the present invention, shown in reduced scale. Figure 18

[0039] Figure 22 Figure 15 is a legend.

[0040] Figure 16 is a legend.

[0041] ​​​​1, puncture component; 11, puncture catheter; 12, first handle; 120, first opening; 1201, butterfly-shaped groove; 121, first protruding part; 1210, first through hole; 1211, first groove; 2, first puncture guide; 20, second through hole; 21, shell; 210, second groove; 22, second protruding part; 23, puncture catheter; 230, second opening; 231, first channel; 2311, first snap joint; 24, second snap joint; 241, second channel; 3, puncture handle; 31, first tube sleeve; 32, second tube sleeve; 321, third tube sleeve; 322, guide rail; 323, external thread; 331, limiting disc; 332, first tube joint; 34, second handle; 341, second tube joint; 4, electrode cutter head; 41, electrode tube; 411, electrode head; 412, limiting clamping sleeve; 42, third handle; 43, wire; 44, ablation host computer; 441, output joint; 5, first puncture fixing part; 50, fourth through hole; 51, cover body; 511, embedded part; 52, elastic clamping plate; 520, third opening; 6, first rotating sleeve; 60, fifth through hole; 61, fourth opening; 62, third protruding part; 63, fourth protruding part; 7, pressing ring; 70, third groove; 71, fifth protruding part; 8, clamping ring; 80, fourth groove; 9, second puncture guide; 901, fifth groove; 91, puncture bottom plate; 92, sixth protruding part; 931, pressing handle; 932, first top block; 9321, trapezoidal groove; 94, support frame; 95, second rotating sleeve; 96, second top block; 961, columnar protruding part; 971, first spring; 972, second spring; 9720, sixth groove; 98, fixed block. DETAILED DESCRIPTION

[0042] 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. 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.

[0043] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] Embodiment one: reference Figures 1-21 , the present application provides an embodiment, a radio frequency ablation system, comprising an ablation component, the ablation component comprises a puncture component 1 for establishing a channel, a puncture component installed on the puncture component 1 and an electrode cutter head 4 installed on the puncture component, wherein the ablation end of the electrode cutter head 4 is out of the distal end of the puncture component, the distal end of the puncture component is out of the distal end of the puncture component 1; wherein the puncture component is installed on the puncture component 1, specifically, the puncture component is fixed on the puncture component 1 in a detachable manner; wherein the puncture component comprises a puncture guide and a puncture handle 3, the puncture handle 3 is installed in the middle of the puncture guide and at the upper end of the puncture guide, the puncture guide is used to control the bending radius of the distal end of the puncture handle 3 and / or the depth of insertion into the bone; the puncture guide comprises a first puncture guide 2 or a second puncture guide 9, the side surface of the first puncture guide 2 abuts on the puncture component 1, so that the first puncture component is fixed on the puncture component 1 by setting the first puncture guide 2; at least one end of the second puncture guide 9 is buckled on the puncture component 1, so that the first puncture component is fixed on the puncture component 1 by setting the second puncture guide 9; wherein the puncture handle 3 is used for inserting the ablation end of the electrode cutter head 4, and the ablation end of the electrode cutter head 4 is out of the distal end of the puncture handle 3.

[0045] The puncture part in the application is a first puncture part or a second puncture part, wherein the first puncture part and the second puncture part are fixed on the puncture part 1 in different fixed ways. The first puncture part has a puncture function through the first puncture guide 2, so that the first puncture part has the puncture function. In the embodiment, the puncture function refers to that the puncture part can be inserted into the proximal end of the puncture part or withdrawn from the puncture part. The first puncture guide 2 is fixed on the puncture part 1 through side abutment, so that the first puncture guide 2 and the puncture part 1 are fixed and arranged with each other. The second puncture part includes a second puncture guide 9 and a puncture handle 3. The second puncture guide 9 and the puncture part 1 are fixed and arranged with each other through buckling. Therefore, the puncture part is fixed on the puncture part 1 through the first puncture guide 2 or the second puncture guide 9, and the puncture part has the puncture function. The puncture guide is fixed on the puncture part 1, so that the puncture part 1, the puncture part and the electrode knife head 4 form a structure stable whole, so that the electrode knife head 4 remains stable and accurate during ablation. Through the fixation of the puncture guide, the bending curvature and / or the depth of insertion into the bone of the distal end of the puncture handle 3 can be stably controlled during the puncture. The ablation end of the electrode knife head 4 follows the distal end of the puncture handle 3 to perform synchronous puncture, so that the ablation part realizes accurate and controllable ablation target and range.

[0046] As a further improved embodiment, the ablation end of the electrode knife head 4 is used to be inserted into the bone and perform radiofrequency ablation on the vertebral nerve in the bone.

[0047] As a further improved embodiment, the electrode knife head 4 includes a third handle 42, the distal end of the third handle 42 is provided with an electrode tube 41, the distal end of the electrode tube 41 is provided with an electrode head 411; the proximal end of the third handle 42 is provided with a wire 43, the wire 43 is used to supply power to the third handle 42; wherein the outer surface of the electrode tube 41 is provided with a limiting sleeve 412, the limiting sleeve 412 limits the depth of insertion of the electrode tube 41 into the puncture handle 3.

[0048] The electrode head 411 is the ablation end of the electrode cutter head 4, and precise ablation of the nerve in the bone is achieved by controlling the position of the electrode head 411 inserted into the bone, wherein the position inserted into the bone can be understood as the pointing direction and / or the insertion depth of the electrode head 411. When the ablation end of the electrode tube 41 is a bendable structure, the electrode tube 41 is bent following the bending angle of the distal end of the penetration handle 3, and the bending curvature of the electrode tube 41 is changed by changing the depth of the electrode head 411, thereby achieving precise ablation of the nerve in the bone. The electrode cutter head 4 and the penetration handle 3 are a split structure or an integrated structure, and the position of the electrode cutter head 4 inserted into the bone is adjusted by controlling the position of the penetration handle 3, thereby enabling the electrode head 411 to treat the nerve in the bone in a stable and controllable manner.

[0049] As a further improved embodiment, the penetration handle 3 includes a first sleeve 31 inserted into the puncture component 1, a second sleeve 32 sleeved on the first sleeve 31, a limiting disc 331 provided at the proximal end of the second sleeve 32, and a second handle 34 provided at the proximal end of the limiting disc 331. The second sleeve 32 is used to be inserted into the first penetration guide 2 or the second penetration guide 9. The inner diameter of the second sleeve 32 is greater than the outer diameter of the first sleeve 31, and a cavity is provided between the second sleeve 32 and the first sleeve 31. A guide rail 322 is provided on the inner wall of the second sleeve 32 and is inserted into the side of the penetration guide, so that the angle of the penetration handle 3 can be adjusted under the opening limitation of the penetration guide, and the bending direction of the distal end of the penetration handle 3 is adjustable. By fine-tuning the angle of the penetration handle 3, the distal end of the penetration handle 3 can be easily inserted into the bone.

[0050] The connection mode between the first sleeve 31, the second sleeve 32, the limiting disc 331, and the second handle 34 is not limited in this embodiment, and the first sleeve 31, the second sleeve 32, the limiting disc 331, and the second handle 34 are integrally formed or detachably fixedly connected with each other. The limiting disc 331 in this embodiment can limit the depth of the first sleeve 31 inserted into the puncture component 1. The first sleeve 31 is used to control the bending curvature and / or depth of the electrode tube 41, wherein the distal end of the electrode tube 41 is in an arc-shaped tubular structure or a straight tubular structure. When the distal end of the electrode tube 41 has a bendable function, the distal end of the electrode tube 41 is bent following the first sleeve 31, so that the distal end of the electrode tube 41 is in an arc-shaped tubular structure.

[0051] As a further improved embodiment, the second sleeve 32 and the first sleeve 31 are provided with a third sleeve 321, and the third sleeve 321 and the guide rail 322 are integrated, wherein the guide rail 322 and the second sleeve 32 are integrated; wherein the third sleeve 321 and the first sleeve 31 are provided with a gap, so that the second sleeve 32 can be inserted on the first puncture guide 2 or the second puncture guide 9; at the same time, under the restriction of the opening of the first puncture guide 2 or the second puncture guide 9, the second sleeve 32 can be adjusted in angle within a certain arc. The first sleeve 31, the second sleeve 32, the limiting disc 331 and the second handle 34 are integrated.

[0052] In the embodiment, the second sleeve 32 can be adjusted in angle within a certain arc by setting the guide rail 322, so that the electrode cutter head 4 installed in the puncture handle 3 can be adjusted in angle synchronously, so that the electrode cutter head 4 and the first sleeve 31 are facilitated to be inserted into the bone by continuous angle adjustment; since the first puncture guide 2 or the second puncture guide 9 is also firmly fixed on the puncture part 1, the movable puncture handle 3 does not affect the firmness of the puncture part 1.

[0053] As a further improved embodiment, the proximal end of the second handle 34 is provided with a second pipe joint 341, and the second pipe joint 341 is used for inserting the electrode pipe 41; the distal end of the second handle 34 is connected with a first pipe joint 332, and the first pipe joint 332 is used for connecting the limiting disc 331. In the embodiment, the second handle 34, the second pipe joint 341 and the first pipe joint 332 are integrated, and the angle of the second sleeve 32 is facilitated to be adjusted by setting the second handle 34, so that the first sleeve 31 and the electrode pipe 41 installed in the first sleeve 31 are facilitated to rotate and / or puncture in the bone.

[0054] As a further improved embodiment, the puncture member 1 comprises a puncture catheter 11, a first handle 12 fixed at the proximal end of the puncture catheter 11, the upper end of the first handle 12 is provided with a first opening 120, and the first opening 120 is arranged in the middle of the first handle 12; the shape of the first handle 12 is not limited in this embodiment; the bottom end of the first opening 120 is provided with a first through hole 1210, wherein the first through hole 1210 and the puncture catheter 11 are in communication with each other. Therefore, by arranging the first through hole 1210, the distal end of the puncture handle 3 is inserted into the puncture catheter 11; the puncture guide is fixed in the first opening 120. The puncture catheter 11 in this embodiment is used to establish an ablation insertion channel and facilitate the adjustment of the insertion depth of the puncture handle 3. Since the puncture guide is fixed in the first opening 120, the puncture accuracy of the puncture handle 3 will not be affected. In this embodiment, the puncture catheter 11 limits the axial movement of the first sleeve 31 through surface contact, wherein the outer diameter of the first sleeve 31 is not greater than the inner diameter of the puncture catheter 11.

[0055] Embodiment two: reference Figures 1-5The difference between the embodiment and the above embodiments is that the first puncture guide 2 comprises a shell 21 and a puncture guide tube 23 arranged inside the shell 21, and a second opening 230 is arranged on the curved surface of the puncture guide tube 23, wherein the second opening 230 extends from the proximal end of the puncture guide tube 23 to the distal end thereof, and the second opening 230 is used to place a guide rail 322 and enable the guide rail 322 to be angularly adjusted within the range of the second opening 230; in the embodiment, when the distal end of the first sleeve 31 is in an arc-shaped tubular structure, the guide rail 322 arranged on the inner wall of the second sleeve 32 is limited in bending direction by being installed in the second opening 230, so that the second opening 230 has the function of indicating the bending direction of the first sleeve 31; in the embodiment, the number of the second openings 230 is at least one, and the second sleeve 32 is penetrated so that the guide rail 322 on the second sleeve 32 is installed in other second openings 230, so that the bending direction of the distal end of the first sleeve 31 is adjusted by increasing the number of the second openings 230; in the embodiment, the distal end of the first sleeve 31 in the initial state is penetrated out of the distal end of the puncture guide tube 11, and the distal end of the first sleeve 31 is penetrated so as to be away from the distal end of the shell 21, so that the distal end of the first sleeve 31 moves to the first handle 12, and when the distal end of the first sleeve 31 is in an arc-shaped tubular structure, the bending curvature of the penetrated distal end of the first sleeve 31 gradually decreases, wherein the distal end of the first sleeve 31 can also be penetrated into the inside of the puncture guide tube 11, and at the same time, the depth of the first sleeve 31 implanted into the bone is reduced, i.e., the first sleeve 31 is gradually moved out of the bone, so that the electrode head 411 implanted in the first sleeve 31 is penetrated with the first sleeve 31, so that the radiofrequency ablation system has the function of controllable ablation range; when the distal end of the first sleeve 31 is a straight tube, the first sleeve 31 only reduces the depth implanted into the bone in the process of penetrating the second sleeve 32; the distal end of the shell 21 abuts against the groove bottom of the first opening 120, so that the shell 21 is installed in the first opening 120.

[0056] The shell 21 is provided with a second groove 210 at the proximal end, and the second sleeve 32 is arranged in the second groove 210; in the embodiment, the puncture guide tube 23 and the shell 21 are integrally connected, the puncture guide tube 23 is used for guiding the distal end of the shell 21, and the first sleeve 31 is facilitated to be inserted into the puncture component 1; the second opening 230 can extend to the bottom of the second groove 210 or extend into the second groove 210; the extension position of the guide rail 322 matches the extension position of the second opening 230, and the end of the second sleeve 32 is moved to the bottom end of the second groove 210; the end of the puncture guide tube 23 is provided with a second through hole 20, the second through hole 20 penetrates the bottom of the second groove 210; the outer diameter of the puncture guide tube 23 is not greater than the inner diameter of the second sleeve 32, so that the second sleeve 32 is facilitated to be separated from the puncture guide tube 23, in the embodiment, external force is applied to the second handle 34 to separate or insert the second sleeve 32 into the puncture guide tube 23, and the side of the shell 21 abuts against the side wall of the first opening 120, so that the first handle 12 fixes the shell 21 through the side wall of the first opening 120, and the first opening 120 is used for clamping the side end of the shell 21. In the embodiment, the end of the distal end of the shell 21 is in the shape of a rectangle, a regular polygon, a rhombus, a trapezoid or a circle; when the distal end of the shell 21 is in the structure of a regular polygon, the bending direction of the first sleeve 31 is adjusted by adjusting the embedding position of the shell 21 and the first opening 120.

[0057] As a further improved embodiment, the guide rail 322 slides along the axial direction of the puncture guide tube 23 to the bottom end of the second opening 230, the size of the second opening 230 is greater than the size of the guide rail 322, the position of the guide rail 322 in the second opening 230 is adjusted, the second sleeve 32 can be adjusted in angle because the guide rail is arranged in the second sleeve 32, and thus the angle of the first sleeve 31 fixed in the second sleeve 32 can be adjusted.

[0058] As a further improved embodiment, the puncture guide tube 23 is located at the middle part of the shell 21.

[0059] As a further improved embodiment, the bottom of the first opening 120 is further provided with a first protruding part 121 in the structure of a column, and the upper end of the first protruding part 121 is provided with a first through hole 1210. The outer diameter of the first protruding part 121 is not greater than the inner diameter of the puncture guide tube 23. The outer diameter of the first protruding part 121 is not greater than the inner diameter of the puncture guide tube 23, so that the first protruding part 121 on the first handle 12 is inserted into the second through hole 20, and thus the puncture guide tube 23 has a guiding function.

[0060] As a further improved embodiment, the distal end of the first sleeve 31 is in a straight or arcuate tubular structure. The preferred first sleeve 31 is a flexible insulating tube, and the flexible first sleeve 31 can be adapted to an electrode tube with a bending function or a straight electrode tube.

[0061] Embodiment three: reference Figures 1-14 The difference between this embodiment and embodiment two is that the first puncture guide 2 further comprises a first puncture fixing member 5 for blocking the second groove 210, the first puncture fixing member 5 comprises a cover 51 and an elastic clamping plate 52 arranged at the side end of the cover 51, wherein the elastic clamping plate 52 and the cover 51 are integrally connected; wherein the middle part of the cover 51 is provided with a fourth through hole 50, and the proximal end of the second sleeve 32 passes out of the fourth through hole 50; wherein the shell 21 and the elastic clamping plate 52 of the cover 51 are both abutted in the first opening 120 of the first handle 12, and the cover 51 can improve the fixing effect of the cover 51 by arranging the elastic clamping plate 52, and at the same time prevent the shell 21 from moving away from the groove bottom of the first opening 120, so that the cover 51 assists in fixing the shell 21; the side end of the cover 51 is provided with a third opening 520, wherein the third opening 520 is provided with an elastic clamping plate 52, wherein the distal end of the elastic clamping plate 52 is connected with the cover 51, and the proximal end of the elastic clamping plate 52 is outwardly inclined, and the elastic clamping plate 52 is used for abutting on the side wall of the first opening 120, so that the cover 51 is firmly fixed in the first opening 120; the shell 21 is placed into the bottom end of the first opening 120 by pressing down the cover 51, wherein the fixing stability of the cover 51 embedded in the first handle 12 is significantly improved by abutting the elastic clamping plate 52, so that the cover 51 assists in fixing the shell 21; therefore, the first puncture guide 2 is fixed in the puncture member 1. In this embodiment, the shape of the proximal end of the shell 21 is rectangular, regular polygon, rhombus, trapezoidal or circular.

[0062] As a further improved embodiment, the lower end of the cover 51 is provided with an embedding part 511, wherein the embedding part 511 is used for embedding in the shell 21, and the cover 51 is fixed above the shell 21 by pressing down; the side end of the cover 51 and the side end of the shell 21 coincide with each other. By arranging the embedding part 511, the stability of the cover 51 and the shell 21 is improved, and the fixing direction is clear.

[0063] As a further improved embodiment, the bottom end of the first protruding part 121 is provided with a first groove 1211; the first pipe guide 2 further comprises a first rotating sleeve 6 for driving the second sleeve 32 to reciprocate, a pressing ring 7 for supporting the first rotating sleeve 6, and a snap ring 8 for connecting the first rotating sleeve 6 and the pressing ring 7; the outer surface of the second sleeve 32 is provided with external threads 323, and the first rotating sleeve 6 is screwed with the second sleeve 32 through the external threads 323, wherein the cover 51 is used to press the first rotating sleeve 6 to move the pressing ring 7 to the bottom end of the first opening 120, and the pressing ring 7 moving to the bottom end of the first opening 120 extrudes the buckling part of the first rotating sleeve 6 and makes the buckling part of the first rotating sleeve 6 abut in the first groove 1211, thereby fixing the lower end of the first rotating sleeve 6 on the first handle 12. The snap ring 8 in this embodiment is used to connect the pressing ring 7 and the first rotating sleeve 6 to form a whole, so that the pressing ring 7 reciprocates with the first rotating sleeve 6, and the pressing ring 7 does not rotate with the first rotating sleeve 6; thus the pressing ring 7 is convenient to separate or install the first opening 120 of the first handle 12 with the first rotating sleeve 6. In this embodiment, the guide rail 322 on the inner wall of the second sleeve 32 is inserted into the pipe guide 23 of the second opening 230.

[0064] As a further improved embodiment, the outer diameter of the first rotating sleeve 6 is not greater than the diameter of the fourth through hole 50, so that the proximal end of the first rotating sleeve 6 passes out of the fourth through hole 50 of the cover 51, and thus the inner wall of the distal end of the first rotating sleeve 6 is embedded on the snap ring 8; the outer curved surface of the first rotating sleeve 6 is provided with a third protruding part 62, which abuts on the lower end surface of the cover 51, wherein the third protruding part 62 is located inside the cover 51, and the third protruding part 62 is driven to move to the first handle 12 by pressing the cover 51, so that the distal end of the first rotating sleeve 6 abuts on the pressing ring 7, and the pressing ring 7 moves to the distal end of the pipe guide 23; the upper end of the first rotating sleeve 6 is provided with a fourth opening 61, and the lower end of the first rotating sleeve 6 is provided with a fifth through hole 60, wherein the diameter of the fifth through hole 60 is smaller than the diameter of the fourth opening 61; the first rotating sleeve 6 is embedded on the snap ring 8 through the fifth through hole 60, and the outer curved surface of the snap ring 8 is provided with a fourth groove 80 in an annular structure, wherein the groove bottom diameter of the fourth groove 80 is not greater than the diameter of the fifth through hole 60, and the diameter of the fifth through hole 60 is not greater than the outer diameter of the snap ring 8, so that the distal end of the first rotating sleeve 6 is embedded in the fourth groove 80 of the snap ring 8, and the pressing ring 7 and the first rotating sleeve 6 are connected to form a whole by arranging the snap ring 8;

[0065] The fourth recess 80 is internally provided with a pressing ring 7, the inner wall of the pressing ring 7 is provided with a third recess 70 with a stepped axial section, the proximal end of the pressing ring 7 is installed in the fourth recess 80, and a gap is provided between the proximal end of the pressing ring 7 and the distal end of the first rotating sleeve 6, so that the pressing ring 7 does not affect the circumferential rotation of the first rotating sleeve 6; when the cap 51 is pulled upward under the action of an external force, the first rotating sleeve 6 is also moved upward, and the synchronous belt is moved upward under the action of the clamping ring 8; the distal end inner diameter of the pressing ring 7 is not greater than the proximal end inner diameter of the pressing ring 7; the inner diameter of the clamping ring 8 is matched with the outer diameter of the guide tube 23, the clamping ring 8 is sleeved on the guide tube 23, and the proximal end inner wall of the pressing ring 7 is embedded in the fourth recess 80 of the clamping ring 8; the inner wall of the pressing ring 7 is provided with a fifth protruding part 71; the outer curved surface of the guide tube 23 is provided with a first channel 231, the distal end of the first channel 231 is provided with a first buckle joint 2311, the first buckle joint 2311 can be bent inward under pressure; the inner wall of the guide tube 23 is provided with a second buckle joint 24, the second buckle joint 24 is provided opposite to the first buckle joint 2311; the bottom end of the first protruding part 121 is provided with a first recess 1211, and the first recess 1211 is used for clamping the second buckle joint 24;

[0066] The fifth protruding part 71 on the pressing ring 7 and the first channel 231 are matched in size, the number of the first channel 231 is at least one, and the fifth protruding part 71 is installed in the first channel 231; during the pressing process of the cap 51, the distal end of the first rotating sleeve 6 abuts against the pressing ring 7, the fifth protruding part 71 of the pressing ring 7 moves to the distal end of the guide tube 23, the fifth protruding part 71 extrudes the first buckle joint 2311 to move to the first recess 1211, the second buckle joint 24 is embedded in the first recess 1211, and thus the second buckle joint 24 is fixed in the first recess 1211, the guide tube 23 is firmly fixed on the first protruding part 121, and the fixing firmness of the first guide tube 23 and the cap 51 is further improved. In this embodiment, there are two ways to fix the shell 21 connected with the guide tube 23, one is that the shell 21 is fixed on the first protruding part 121 only through the second buckle joint 24, and the other is that the shell 21 is fixed on the first protruding part 121 through the second buckle joint 24, and the outer surface of the shell 21 is fixed by abutting against the inner wall of the first opening 120. The guide tube 23 in the middle of the shell 21 is fixed on the first protruding part 121 of the first handle 12 through the second buckle joint 24, when the distal end / proximal end of the shell 21 is in a circular structure or a regular polygon structure, the bending direction of the distal end of the first tube sleeve 31 installed on the guide handle 3 can be adjusted by rotating the shell 21. In this embodiment, the distal end / proximal end of the shell 21 is in a circular structure or a regular polygon structure.

[0067] As a further improved embodiment, the inner wall of the penetrating catheter 23 is also provided with a second channel 241, and the second snap joint 24 is located at the distal end of the second channel 241. The second channel 241 avoids the second snap joint 24 from being buckled in the first groove 1211 without external force.

[0068] As a further improved embodiment, the outer side of the shell 21 is provided with a second protrusion 22 which is symmetrically distributed. The second protrusion 22 facilitates the shell 21 to be separated from the first handle 12. In this embodiment, the second protrusion 22 and the shell 21 are integrally formed or detachably connected. The shape of the second protrusion 22 is not limited. In this embodiment, the second protrusion 22 facilitates the shell 21 to be separated from the first handle 12 under the action of external force. The second protrusion 22 is equivalent to a handle of the shell 21.

[0069] As a further improved embodiment, the outer surface of the first rotating sleeve 6 is provided with a plurality of fourth protrusions 63 which are arranged in a circumferential array. The fourth protrusions 63 facilitate the rotation of the first rotating sleeve 6.

[0070] As a further improved embodiment, the electrode cutter head 4 includes a third handle 42, an electrode tube 41 mounted at the distal end of the third handle 42, and an electrode head 411 mounted at the distal end of the electrode tube 41. The electrode tube 41 is sleeved with a limiting sleeve 412. The limiting sleeve 412 is mounted on the outer surface of the electrode tube 41, and the distal end of the limiting sleeve 412 is mounted at the proximal end of the penetrating handle 3. The limiting sleeve 412 is used to limit the depth of the electrode tube 41 inserted into the penetrating handle 3, and the distal end of the electrode tube 41 or the electrode head 411 is arranged to protrude from the distal end of the penetrating handle 3. In this embodiment, the position of the limiting sleeve 412 is adjusted to make the electrode tube 41 have a controllable penetrating / inserting distance, and the radiofrequency ablation system has a double penetrating mode.

[0071] In this embodiment, the electrode tube 41 and the limiting sleeve 412 are assembled by curved surface contact, and the limiting sleeve 412 limits the axial movement of the electrode tube 41. The position of the limiting sleeve 412 is adjusted to make the distal end of the electrode tube 41 protrude from the distal end of the penetrating handle 3. When the length of the electrode tube 41 is greater than the length of the penetrating handle 3, the limiting sleeve 412 is sleeved on the outer surface of the electrode tube 41 to adapt the electrode tube 41 to the penetrating handle 3. In this embodiment, the limiting sleeve 412 has a straight tubular structure, a stepped tubular structure, a spiral coil structure, a conical tubular structure, or a ring gasket structure.

[0072] Embodiment four: refer to Figures 15-21The difference between the embodiment and the above embodiments is that the puncture component 1 comprises a puncture catheter 11 and a first handle 12, wherein a first opening 120 is arranged in the middle of the upper end of the first handle 12, and a butterfly-shaped groove 1201 is arranged at both ends of the first handle 12; the second puncture guide 9 comprises a puncture base plate 91 arranged on the puncture component 1, a second rotating sleeve 95 arranged above the puncture base plate 91, a support frame 94 arranged on the puncture base plate 91, and a sixth protruding part 92 arranged at both ends of the puncture base plate 91, wherein the sixth protruding part 92 is used for clamping in the butterfly-shaped groove 1201 of the first handle 12; thus, the puncture base plate 91 is fixed in the first handle 12, and the second puncture guide 9 is fixed on the first handle 12.

[0073] In the embodiment, the two sixth protruding parts 92 fixed on the first handle 12 are clamped in the butterfly-shaped grooves 1201 at both ends of the first handle 12, and the two sixth protruding parts 92 are symmetrically arranged at both ends of the puncture base plate 91; wherein the puncture base plate 91 is arranged on the groove bottom of the first opening 120, the clamping part of the sixth protruding part 92 is arranged at the top end of the butterfly-shaped groove 1201, and is close to the first opening 120, thus the clamping part of the sixth protruding part 92 abuts at the top corner of the butterfly-shaped groove 1201, since the two sixth protruding parts 92 are clamped in the butterfly-shaped grooves 1201 at both ends of the first handle 12, and the sixth protruding parts 92 are symmetrically arranged, the movement of the puncture base plate 91 is effectively avoided, thus the puncture base plate 91 is firmly fixed in the first opening 120.

[0074] As a further improved embodiment, the support frame 94 is in a U-shaped structure, a second sleeve 32 is arranged through the proximal end of the support frame 94, and the proximal end of the support frame 94 abuts on the limiting disc 331; the support frame 94 is fixed on the puncture base plate 91 by arranging a bending rod thereon; wherein the bending rod is a support part of the support frame 94; wherein the second rotating sleeve 95 is connected with the second sleeve 32 with external thread 323 through internal thread. In the embodiment, the second rotating sleeve 95 is limited in the support frame 94 and the puncture base plate 91, by rotating the second rotating sleeve 95, the second sleeve 32 is reciprocated along the axial direction, and thus the electrode cutter head 4 arranged in the second sleeve 32 has a puncture function. In the embodiment, the guide rail 322 on the inner wall of the second sleeve 32 is inserted into the puncture guide tube 23 of the second opening 230, wherein the puncture guide tube 23 and the puncture base plate 91 are in an integrated structure.

[0075] As a further improved embodiment, one end of the sixth protruding part 92 is provided with a fifth groove 901, the inside of the fifth groove 901 is provided with a second top block 96 and a first spring 971, one end of the first spring 971 abuts on the groove bottom of the fifth groove 901, the other end of the first spring 971 abuts on the second top block 96; one end of the second top block 96 is provided with a cylindrical protruding part 961 with a flat cutting surface, the flat cutting surface of the cylindrical protruding part 961 abuts on the inner wall of the butterfly-shaped groove 1201, and the top end of the cylindrical protruding part 961 abuts on the top corner of the butterfly-shaped groove 1201 and is arranged near the top end of the first opening 120; one end of the sixth protruding part 92 is provided with a sixth groove 9720, the inside of the sixth groove 9720 is mounted with a first top block 932 and a second spring 972, one end of the first top block 932 abuts on the second spring 972, and the other end is connected with a pressing handle 931, the first top block 932 penetrates out of the radial direction of the second top block 96, so that the second spring 972 is located on one side of the cylindrical protruding part 961, wherein the first top block 932 is used to limit the axial movement position of the second top block 96; the sixth groove 9720 and the fifth groove 901 are respectively located at the adjacent ends of the cylindrical protruding part 961, wherein the opening direction of the fifth groove 901 faces the butterfly-shaped groove 1201; the middle part of the first top block 932 is provided with a trapezoidal groove 9321, wherein by pressing the first top block 932 to compress the second spring 972, the inclined surface of the first top block 932 abuts on the second top block 96, so that the second top block 96 moves to the first spring 971, and then the cylindrical protruding part 961 is retracted into the fifth groove 901, so that the penetrating bottom plate 91 can be separated from the first handle 12; when the external force is removed, the pressing handle 931 is away from the sixth protruding part 92 under the elastic force of the second spring 972 and the limiting of the trapezoidal groove 9321, wherein the cylindrical protruding part 961 moves out of the fifth groove 901 under the elastic force of the first spring 971 during the movement of the second top block 96, so that the cylindrical protruding part 961 can abut in the butterfly-shaped groove 1201, and the penetrating bottom plate 91 is fixed on the first handle 12. In this embodiment, when the first top block 932 is pressed, the inclined surface of the first top block 932 drives the second top block 96 to press the first spring 971, so that the cylindrical protruding part 961 is retracted into the fifth groove 901, and the penetrating bottom plate 91 can be separated from the first handle 12; when the external force is removed, the first top block 932 and the cylindrical protruding part 961 move out of the sixth protruding part 92 under the elastic force of the second spring 972 and the first spring 971 respectively, and the cylindrical protruding part 961 can abut in the butterfly-shaped groove 1201, so that the penetrating bottom plate 91 is fixed on the first handle 12.

[0076] As a further improved embodiment, the distal end of the penetrating base plate 91 is provided with a fixing block 98, and the proximal end of the fixing block 98 is provided with a columnar protruding part 961, wherein the columnar protruding part 961 is used for mounting the second top block 96; wherein the second top block 96 is axially reciprocatingly movable along the fifth groove 901. In this embodiment, the columnar protruding part 961 and the sixth protruding part 92 are integrated, and the sixth protruding part 92 and the penetrating base plate 91 are integrated.

[0077] Embodiment five: with reference to Figures 1-22 The difference between this embodiment and the above embodiments is that the ablation system further comprises an ablation host 44, which is used to control the ablation component to output radio frequency energy, so as to realize radio frequency ablation of the nerve in the bone; the ablation host 44 and the electrode knife head 4 are connected by a wire 43, the distal end of the wire 43 is connected with the electrode knife head 4, the proximal end of the wire 43 is provided with an output connector 441, and the proximal end of the output connector 441 is mounted on the ablation host 44.

[0078] In this embodiment, the ablation host 44 is started to make the electrode knife head 4 perform ablation treatment, wherein the electrode head 411 at the distal end of the electrode knife head 4 is the ablation end of the electrode knife head 4. In this embodiment, the first sleeve 31 is penetrated in a plurality of penetrating ways, and the penetrating stability of the first sleeve 31 is ensured in a stable and controllable way, thereby improving the penetrating stability of the electrode head 411 mounted in the first sleeve 31, and making the ablation end of the electrode knife head 4 have the ablation range precision controllable function. The ablation end of the electrode knife head 4 is the electrode head 411.

[0079] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A radiofrequency ablation system, characterized in that: The ablation component includes a puncture component (1) for establishing a channel, a retraction component mounted on the puncture component (1), and an electrode tip (4) mounted on the retraction component, wherein the ablation end of the electrode tip (4) extends from the distal end of the retraction component, and the distal end of the retraction component extends from the distal end of the puncture component (1). The insertion and withdrawal components include an insertion and withdrawal guide detachably fixed to the puncture component (1) and an insertion and withdrawal handle (3) located at the upper middle part of the insertion and withdrawal guide. The insertion and withdrawal guide is used to control the bending arc of the distal end of the insertion and withdrawal handle (3) and / or the insertion depth into the bone. The insertion and withdrawal guide includes a first insertion and withdrawal guide (2) or a second insertion and withdrawal guide (9). The side of the first insertion and withdrawal guide (2) abuts against the puncture component (1). At least one end of the second insertion and withdrawal guide (9) is fastened to the puncture component (1). The insertion and withdrawal handle (3) is used to insert the ablation end of the electrode tip (4) and protrude from the distal end of the insertion and withdrawal handle (3). The ablation of the electrode tip (4) The end is used for insertion into the bone; the electrode tip (4) includes a third handle (42) and an electrode tube (41) installed at the distal end of the third handle (42), the distal end of the electrode tube (41) is equipped with an electrode head (411), the electrode head (411) is used for intraosseous radiofrequency ablation; the insertion and withdrawal handle (3) includes a first sleeve (31) inserted into the puncture component (1), a second sleeve (32) sleeved on the first sleeve (31), a limiting disc (331) set at the proximal end of the second sleeve (32), and a second handle (34) set at the proximal end of the limiting disc (331); wherein the second sleeve (32) is used for insertion into the first insertion and withdrawal guide (2) or the second insertion and withdrawal guide (9); A chamber is provided between the second sleeve (32) and the first sleeve (31). A guide rail (322) is provided on the inner wall of the second sleeve (32) and placed inside the chamber. The guide rail (322) is inserted into the side of the insertion guide and makes the angle of the distal end of the insertion handle (3) adjustable. The first sleeve (31) is used to control the bending arc and / or depth of the electrode tube (41).

2. The radiofrequency ablation system according to claim 1, characterized in that: The puncture component (1) includes a puncture catheter (11) for establishing a channel and a first handle (12) fixed to the proximal end of the puncture catheter (11). The first handle (12) has a first opening (120) at the middle of its upper end, and a first through hole (1210) is provided at the bottom end of the first opening (120). The first through hole (1210) and the puncture catheter (11) are interconnected. The puncture guide is fixed in the first opening (120).

3. The radiofrequency ablation system according to claim 2, characterized in that: The first insertion / retraction guide (2) includes a housing (21) installed in the first opening (120) and an insertion / retraction conduit (23) disposed inside the housing (21). The curved surface of the insertion / retraction conduit (23) is provided with a second opening (230) for placing the guide rail (322). The number of second openings (230) is at least one. The bending direction of the distal end of the first tube sleeve (31) can be adjusted by increasing the number of second openings (230). The insertion / retraction conduit (23) is used to guide the distal end of the housing (21) and facilitate the insertion of the first tube sleeve (31) into the puncture component (1). The housing (21) is used to install the second tube sleeve (32). The outer diameter of the insertion / retraction conduit (23) is not greater than that of the second tube sleeve (322). 2) The inner diameter makes it easy for the second sleeve (32) to be removed from the insertion and withdrawal catheter (23). During the insertion and withdrawal of the second sleeve (32), when the distal end of the first sleeve (31) is an arc-shaped tubular structure, the curvature of the distal end of the first sleeve (31) gradually decreases, reducing the depth of the first sleeve (31) inserted into the bone. The distal end of the first sleeve (31) can also be inserted and withdrawn into the puncture catheter (11). The electrode head (411) inserted in the first sleeve (31) follows the insertion and withdrawal of the first sleeve (31), so that the radiofrequency ablation system has the function of controllable ablation range. When the distal end of the first sleeve (31) is a straight tube, the first sleeve (31) only reduces the depth of insertion into the bone during the insertion and withdrawal of the second sleeve (32).

4. The radiofrequency ablation system according to claim 3, characterized in that: The bottom of the first opening (120) is also provided with a first protrusion (121) in the form of a column. The outer diameter of the first protrusion (121) is not greater than the inner diameter of the insertion guide (23). The first insertion guide (2) also includes a first insertion fixing member (5) for assisting in fixing the housing (21). The first insertion fixing member (5) includes a cover (51) and an elastic clamp (52) provided on the side of the cover (51). The middle part of the cover (51) is provided with a fourth through hole (50) for inserting the second sleeve (32). The distal end of the elastic clamp (52) is connected to the cover (51), and the proximal end of the elastic clamp (52) is inclined outward. The elastic clamp (52) is used to abut against the side wall of the first opening (120) so that the cover (51) is firmly fixed in the first opening (120).

5. The radiofrequency ablation system according to claim 4, characterized in that: The bottom end of the first protrusion (121) is provided with a first groove (1211); the first insertion guide (2) further includes a first rotating sleeve (6) for driving the second sleeve (32) to move and a lower pressure ring (7) for supporting the first rotating sleeve (6), and a retaining ring (8) for connecting the first rotating sleeve (6) and the lower pressure ring (7), wherein the retaining ring (8) is used to connect the lower pressure ring (7) and the first rotating sleeve (6) to form a whole; wherein the outer surface of the second sleeve (32) is provided with It has an external thread (323) and is threaded to a first rotating sleeve (6); wherein the cover (51) is used to press down the first rotating sleeve (6) to move the pressure ring (7) to the bottom end of the first opening (120), wherein the pressure ring (7) moving to the bottom end of the first opening (120) squeezes the fastening part of the through-and-remove guide (23) and makes the fastening part of the through-and-remove guide (23) abut in the first groove (1211), thereby fixing the lower end of the through-and-remove guide (23) on the first handle (12).

6. The radiofrequency ablation system according to claim 5, characterized in that: The first rotating sleeve (6) extends through the fourth through hole (50) of the cover (51); the outer curved surface of the first rotating sleeve (6) is provided with a third protrusion (62) placed inside the cover (51), wherein the third protrusion (62) abuts against the lower end face of the cover (51), and by pressing down the cover (51), the distal end of the first rotating sleeve (6) abuts against the pressing ring (7), and the pressing ring (7) moves toward the distal end of the through-and-remove guide (23).

7. The radiofrequency ablation system according to claim 5, characterized in that: The lower end of the first rotating sleeve (6) is provided with a fifth through hole (60); the outer curved surface of the retaining ring (8) is provided with a fourth groove (80) in an annular structure, so that the inner wall of the far end of the first rotating sleeve (6) is embedded in the fourth groove (80); a lower pressure ring (7) is also installed inside the fourth groove (80), and the inner wall of the lower pressure ring (7) is provided with a third groove (70) in a stepped axial section, and the inner wall of the proximal end of the lower pressure ring (7) is embedded in the fourth groove (80); The inner wall of the pressure ring (7) is provided with a fifth protrusion (71); the outer curved surface of the through-and-retract conduit (23) is provided with a first channel (231), and the distal end of the first channel (231) is provided with a first snap-fit ​​connector (2311), wherein the first snap-fit ​​connector (2311) can be bent inward under pressure; the inner wall of the through-and-retract conduit (23) is provided with a second snap-fit ​​connector (24), and the second snap-fit ​​connector (24) and the first snap-fit ​​connector (2311) are arranged opposite to each other; wherein the first groove (1211) is used to snap the second snap-fit ​​connector (24); The fifth protrusion (71) on the pressure ring (7) is adapted to the size of the first channel (231), wherein the number of the first channel (231) is at least one, and the fifth protrusion (71) is installed in the first channel (231); when the fifth protrusion (71) of the pressure ring (7) moves toward the distal end of the insertion and withdrawal conduit (23), the fifth protrusion (71) squeezes the first snap connector (2311) to move toward the first groove (1211), so that the second snap connector (24) is embedded in the first groove (1211), and the insertion and withdrawal conduit (23) is fixed on the first protrusion (121).

8. The radiofrequency ablation system according to claim 7, characterized in that: The inner wall of the described insertion and withdrawal conduit (23) is also provided with a second channel (241), wherein the second snap connector (24) is located at the far end of the second channel (241), and the second snap connector (24) is located outside the first groove (1211) by setting the second channel (241).

9. The radiofrequency ablation system according to claim 2, characterized in that: Both ends of the first handle (12) are provided with butterfly-shaped grooves (1201); the second piercing guide (9) includes a piercing base plate (91) installed on the piercing component (1), a second rotating sleeve (95) located above the piercing base plate (91), a support frame (94) installed on the piercing base plate (91), and a sixth protrusion (92) located at both ends of the piercing base plate (91). The sixth protrusion (92) is used to engage with the butterfly groove (1201) of the first handle (12) so that the second piercing guide (9) is fixed on the first handle (12).

10. The radiofrequency ablation system according to claim 9, characterized in that: Two sixth protrusions (92) fixed on the first handle (12) are respectively engaged in the butterfly grooves (1201) at both ends of the first handle (12), and the two sixth protrusions (92) are symmetrically arranged at both ends of the through-hole base plate (91); wherein the through-hole base plate (91) is installed at the bottom of the groove of the first opening (120), and the engaging part of the sixth protrusion (92) is located at the top of the butterfly groove (1201) and is set close to the first opening (120), so that the through-hole base plate (91) is fixed in the first opening (120) under the engaging of the sixth protrusion (92).

11. The radiofrequency ablation system according to claim 9, characterized in that: The sixth protrusion (92) has a fifth groove (901) with its opening facing the butterfly groove (1201) at one end. The fifth groove (901) contains a second top block (96) and a first spring (971) whose ends abut against each other. One end of the first spring (971) abuts against the bottom of the fifth groove (901). The second top block (96) has a columnar protrusion (961) with a flat cut at one end. The flat surface of the sixth protrusion (92) abuts against the inner wall of the butterfly groove (1201), and the top of the columnar protrusion (961) abuts against the apex of the butterfly groove (1201), and is located near the top of the first opening (120); one end of the sixth protrusion (92) is provided with a sixth groove (9720), and the interior of the sixth groove (9720) is equipped with a first top block (932) and a second spring (972) whose ends abut against each other, and one end of the first top block (932) A pressing handle (931) is connected to the first top block (932), which extends radially from the second top block (96) to restrict the axial movement of the second top block (96). A trapezoidal groove (9321) is provided in the middle of the first top block (932), so that the inclined surface of the first top block (932) abuts against the second top block (96). When the first top block (932) is pressed, the inclined surface of the first top block (932) drives the second top block (96) to press the first spring (971) to make the column... The columnar protrusion (961) retracts into the fifth groove (901), allowing the bottom plate (91) to detach from the first handle (12). When the external force is removed, the first top block (932) and the columnar protrusion (961) move out of the sixth protrusion (92) under the elastic force of the second spring (972) and the first spring (971), and the columnar protrusion (961) can abut against the butterfly groove (1201), thereby fixing the bottom plate (91) to the first handle (12).

12. The radiofrequency ablation system according to claim 9, characterized in that: The support frame (94) has a U-shaped structure. The proximal end of the support frame (94) is provided with a second sleeve (32), and the proximal end of the support frame (94) abuts against the limiting plate (331). The second rotating sleeve (95) is connected to the second sleeve (32) with an external thread (323) through an internal thread. The second rotating sleeve (95) is confined in the support frame (94) and the bottom plate (91). By rotating the second rotating sleeve (95), the second sleeve (32) reciprocates along its axial direction.

13. The radiofrequency ablation system according to any one of claims 1-12, characterized in that: The outer surface of the electrode tube (41) is fitted with a limiting sleeve (412), wherein the distal end of the limiting sleeve (412) is installed at the proximal end of the insertion and withdrawal handle (3). The limiting sleeve (412) is used to limit the depth of the electrode tube (41) inserted into the insertion and withdrawal handle (3), so that the distal end of the electrode head (411) passes out from the distal end of the insertion and withdrawal handle (3).

14. The radiofrequency ablation system according to any one of claims 1-12, characterized in that: The ablation system also includes an ablation host (44) for controlling the output radio frequency energy of the ablation component. A wire (43) is connected between the ablation host (44) and the electrode tip (4). An output connector (441) is provided at the proximal end of the wire (43). The proximal end of the output connector (441) is mounted on the ablation host (44).

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