Rhinitis ablation electrode

Abstract

The invention relates to a rhinitis ablation electrode, and belongs to the technical field of medical instruments. The rhinitis ablation electrode comprises a handle, a tool bit body, an insulating base and an electrode assembly which are connected in sequence. The insulating seat is provided with a back surface and a front surface, and the front surface gradually shrinks towards the back surface from back to front; the electrode assembly comprises two electrode bodies which are oppositely arranged, and the electrode bodies extend out of the front end of the insulating base and are bent to extend to the middle of the front face, so that working faces are formed at the front end and the first side of the insulating base. According to the rhinitis ablation electrode, the front face of the insulating base shrinks inwards, the working faces are formed at the front end and one side of the insulating base, ablation treatment can be conducted on different focus parts, and on the premise that the size of the front end is reduced as much as possible, it is guaranteed that the contact face between the single side of the electrode and tissue is larger; and the tool bit body does not need to be bent in the operation.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a rhinitis ablation electrode. Background Art

[0002] Rhinitis is an inflammatory disease of the nasal cavity. It is an inflammation of the nasal mucosa caused by viruses, bacteria, allergens, various physical and chemical factors, and certain systemic diseases. The main pathological changes of rhinitis are congestion, swelling, exudation, hyperplasia, atrophy or necrosis of the nasal mucosa. Rhinitis is a very common disease, affecting the lives of 40% of people worldwide. Since rhinitis is a non-fatal disease that only affects the quality of life, many people do not pay attention to it, and few people choose surgical treatment. Most people will alleviate the symptoms through some simple treatments, but these treatments are difficult to cure and are prone to relapse. Some patients even relapse regularly. Although it is not fatal, it affects life, especially in social occasions, which greatly reduces the patient's image. At the same time, it will also increase medical expenses, bringing unnecessary medical costs to society and patients.

[0003] Clinical studies have shown that the inflammatory process of the nasal mucosa is driven by the parasympathetic nerve branches buried in the inferior turbinate and lateral nasal wall tissues, which are the motor supply of the inflammatory cascade, control signal function and physiological effects of the submucosal glands (rhinorrhoea) and venous sinuses (congestion) in the nasal tissues. Once the parasympathetic nerves of the lateral nasal wall are ablated, the occurrence of rhinitis can be effectively reduced.

[0004] The posterior nasal nerve enters the nasal cavity through the sphenopalatine foramen. It is mainly composed of the postganglionic fibers of the pterygoid canal nerve and the sensory fibers of the maxillary nerve, which are branches of the sphenopalatine nerve. It has three branches, namely the medial branch of the posterior superior nasal nerve distributed in the mucosa of the nasal septum, the lateral branch of the posterior superior nasal nerve distributed in the mucosa of the medial wall of the middle turbinate, and the posterior inferior nasal nerve distributed in the mucosa of the inferior turbinate and paranasal sinuses. They regulate the function of the nasal cavity by controlling the dilation of most blood vessels and the secretion of glands in the nasal cavity.

[0005] Radiofrequency ablation actually blocks the neural regulation pathway in the reaction process of allergic rhinitis by destroying the posterior inferior nasal nerve, making the sympathetic nerve fibers and parasympathetic nerve fibers and some sensory nerve fibers in this pathway in the nasal cavity completely ineffective, unable to establish effective axon reflexes, and reducing the rapid allergic reaction after contact with allergens. The therapeutic effect is obvious and definite. After the posterior inferior nasal nerve is blocked, the microvascular components basically maintain the preoperative level, but the glands in the nasal mucosa atrophy a lot, so the exudation of inflammatory cells such as neutrophils and lymphocytes during the allergic reaction process is reduced. In addition, since the posterior nasal nerve does not contain the autonomic nerve fibers that control the lacrimal glands, adverse reactions such as reduced tears and dry eyes caused by vidian nerve transection will not occur after the posterior nasal nerve is blocked.

[0006] Insert the electrode tip along the lateral wall of the posterior middle nasal passage. Gently push the RF ablation electrode tip upwards so that the treatment site is exactly at the front and rear lower edge of the middle turbinate to be treated. Then perform multiple ablations at the submucosal and rear end of the inferior turbinate.

[0007] In the invention patent application with application number 202310302376.7 and invention name "A rhinitis treatment device and production method", the traditional rhinitis electrode has only one working surface on the front side, and the electrode needs to be bent during the operation to successfully complete the operation, which is time-consuming and labor-intensive. In addition, the ablation process is prone to technical problems such as poor fit and unsatisfactory ablation effect. Summary of the invention

[0008] In view of this, the purpose of the present invention is to provide a rhinitis ablation electrode, which solves the technical problem of poor electrode fit in the prior art, which affects the ablation effect. The present invention ensures that the contact surface between the unilateral side and the tissue is larger and the fit is better, while minimizing the volume of the front end as much as possible, and there is no need to bend the blade body during the operation.

[0009] The technical solution of the present invention is as follows: The present invention provides a rhinitis ablation electrode, comprising a handle, a blade body, an insulating seat and an electrode assembly connected in sequence; the front side of the insulating seat gradually shrinks from the back to the front toward the back side to form a vacant area; the electrode assembly comprises two electrode bodies arranged side by side, the electrical polarities of the electrode bodies are opposite, the electrode bodies are arranged in the insulating seat and extend toward the vacant area and the front end at the same time, so that a continuous working surface is formed at the front end and the front side when working.

[0010] As an optional solution, the front side is in a gradually sloped shape.

[0011] As an option, the front side is stepped.

[0012] As an optional solution, the two electrode bodies are identical, and the electrode bodies are in a wire-like or sheet-like shape.

[0013] As an optional solution, each electrode body is wound into a ring shape, or cooperates with an insulating seat to form a ring shape.

[0014] As an optional solution, the electrode body includes a first section, a second section, a third section and a fourth section arranged in sequence, the first section and the third section extend in the front-to-back direction, and the second section and the fourth section extend in the thickness direction of the insulating seat.

[0015] As an optional solution, when viewed from the side, the electrode body protrudes out of the outermost proximal end of the insulating seat on the front side.

[0016] As an optional solution, the rhinitis ablation electrode further includes a camera, which is disposed on the insulating seat and located between the two electrode bodies, such that the camera faces the working surface of the electrode body.

[0017] As an optional solution, the camera and the insulating seat are slidably matched along the front-to-back direction.

[0018] As an optional solution, the insulating seat is provided with a mounting hole, the mounting hole passes through the insulating seat along the front-to-back direction, and the camera is inserted into the mounting hole.

[0019] As an optional solution, a threading groove is provided on one side of the cutter head body, a card slot is provided on one side of the insulating seat, and the camera is embedded in the card slot.

[0020] As an optional solution, plug-in bosses are provided on both sides of the camera, and plug-in slide grooves are provided on both sides of the card slot, and the plug-in bosses are slidably embedded in the plug-in slide grooves.

[0021] As an optional solution, the rhinitis ablation electrode also includes a flushing and suction component, which includes a flushing and suction tube, a suction tube and a three-way joint. The three-way joint is arranged between the flushing and suction tube and the suction tube and can be used in conjunction with a syringe. The three-way joint selectively connects the flushing and suction tube with the suction tube or connects the flushing and suction tube with a syringe.

[0022] As an optional solution, the three-way joint includes a main body and a valve switch, and the valve switch can be rotatably set on the main body. The main body includes a flushing and suction section, a suction section and a flushing section. The valve switch is set at the intersection of the flushing and suction section, the suction section and the flushing section, the flushing and suction section and the suction section form a suction channel, and the flushing and suction section and the flushing section form a flushing channel. When the valve switch is rotated, the suction channel and the flushing channel can be selectively connected.

[0023] As an alternative, the valve switch is provided with a wrench, and the valve switch has a flushing state in which the wrench extends along the axial direction of the suction tube, and a suction state in which the wrench extends along the axial direction of the syringe.

[0024] As an alternative, the valve switch is provided with a wrench, and the valve switch has a suction state extending along the axial direction of the suction tube, and a flushing state extending along the axial direction of the syringe.

[0025] The beneficial effects of the present invention are: The rhinitis ablation electrode provided by the present invention has a front side of the insulating seat that contracts inward to form a vacant area, so as to facilitate expanding the working surface of the electrode body within a limited space and increasing the working surfaces in different directions, that is, at least increasing the working surface of the gap between the insulating seat and the proximal end of the electrode body. The electrode with this structural design has a better fit to the tissue in the nasal passage, and the working surface can cooperate with the front working surface to more thoroughly ablate the recessed rear end of the middle nasal passage. The present invention ensures that the contact surface between the front side and the tissue is larger on one side while minimizing the volume of the front end, and there is no need to bend the blade body during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. As shown in the accompanying drawings, the above and other purposes, features and advantages of the present invention will be clearer. The same reference numerals in all the drawings indicate the same parts. The drawings are not deliberately scaled to the actual size, and the focus is on illustrating the main purpose of the present invention.

[0027] Figure 1 A schematic diagram of the structure of a rhinitis ablation electrode provided in Embodiment 1 of the present invention; Figure 2 for Figure 1 A partial enlarged schematic diagram of part A; Figure 3 Schematic diagram of the front end structure of the rhinitis ablation electrode provided in the first embodiment of the present invention Figure 1 ; Figure 4 Schematic diagram of the front end structure of the rhinitis ablation electrode provided in the first embodiment of the present invention Figure 2 ; Figure 5 Schematic diagram of the front end structure of the rhinitis ablation electrode provided in the first embodiment of the present invention Figure 3 - side view; Figure 6 Schematic diagram of the structure of the camera of the rhinitis ablation electrode provided in the first embodiment of the present invention Figure 1 ; Figure 7 A schematic diagram of the front end explosion of the rhinitis ablation electrode provided in the first embodiment of the present invention; Figure 8 A schematic diagram of another front-end structure of the rhinitis ablation electrode provided in the first embodiment of the present invention; Fig. 9 A schematic diagram of one state of the flushing and suction component of the rhinitis ablation electrode provided in the first embodiment of the present invention; Fig.10 A schematic diagram of another state of the flushing and suction assembly of the rhinitis ablation electrode provided in the first embodiment of the present invention; Fig.11 A schematic diagram of the front end structure (without camera) of a rhinitis ablation electrode provided in the second embodiment of the present invention; Fig.12 A schematic diagram of the structure of the camera of the rhinitis ablation electrode provided in the second embodiment of the present invention Figure 2 ; Fig.13 for Fig.11 and Fig.12 Schematic diagram of the matching relationship.

[0028] Icons: 10-rhinitis ablation electrode; 11-handle; 12-blade body; 13-insulating seat; 14-electrode assembly; 15-camera; 16-flushing and suction assembly; 110-cable; 111-wire; 120-threading groove; 121-card slot; 122-plug-in boss; 123-plug-in slide; 130-back; 131-front; 132-mounting hole; 133-suction and flushing hole; 134-vacant area; 140-working pole; 141-return pole; 142-first section; 143-second section; 144-third section; 145-fourth section; 150-endoscopic module; 151-LED light; 152-connecting line; 160-flushing and suction tube; 161-suction tube; 162-three-way connector; 163-syringe; 164-A port; 165-B port; 166-C port. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0033] Example 1: Please refer to Figure 1 As shown, the first embodiment of the present invention provides a rhinitis ablation electrode 10, which is used to be electrically connected to a radio frequency host, and can ablate the parasympathetic nerves of the lateral nasal wall at the lesion site, thereby blocking the posterior inferior nasal nerve. Of course, the rhinitis ablation electrode 10 can also be used to ablate other lesions, or used in open surgery.

[0034] First of all, it should be noted that the "front" and "back" mentioned in this embodiment are defined by the positional relationship with the lesion site. The "front", i.e., the proximal end, is close to the lesion site, and the "back", i.e., the distal end, is far from the lesion site. Of course, the definitions of "front" and "back" are only relative, not absolute positions, and are for reference only.

[0035] Please combine Figure 1-Figure 5 As shown, the rhinitis ablation electrode 10 is mainly composed of a handle 11, a blade body 12, an insulating seat 13 and an electrode assembly 14. The handle 11, the blade body 12, the insulating seat 13 and the electrode assembly 14 are connected in sequence, that is, the rear end of the blade body 12 is connected to the handle 11, the insulating seat 13 is located at the front end of the blade body 12, and the electrode assembly 14 is installed on the insulating seat 13. The following is a detailed discussion of each component of the rhinitis ablation electrode 10.

[0036] The handle 11 is mainly used for doctors to hold. A switch button or the like may be set on the handle 11. The doctor can grasp the handle 11 and press the switch at the right time to control the rhinitis ablation electrode 10 to work or shut down, or adjust the position of the electrode assembly 14.

[0037] The structure of the handle 11 is not limited, and can refer to the prior art. For example, the handle 11 adopts various types such as cylindrical, flat, irregular, etc., and the material and manufacturing method of the handle 11 are not limited. It can be an integral structure or two half shells spliced ​​together, which will not be repeated here. A cable 110 can be provided on the handle 11. The cable 110 can extend from the rear end of the handle 11 and is used to be electrically connected to the radio frequency host. The radio frequency host can provide radio frequency energy for the rhinitis ablation electrode 10. Of course, it is also possible for the cable 110 to extend from the middle or front end of the handle 11.

[0038] The cutter head body 12 is a rod-shaped structure, which can be rod-shaped or tubular, such as round rod, square rod, round tube, square tube, triangular tube, etc. The material of the cutter head body 12 is not limited, and it can be a metal material, a non-metallic material, etc. The cutter head body 12 can be a straight line, or it can be pre-bent at a certain angle. The bending angle is not limited and can be set as needed. In this embodiment, the cutter head body 12 can be made of a soft or semi-hard stainless steel tube. During the operation, the doctor can adjust the bending angle of the cutter head body 12 according to the needs of the operation, so that the insulating seat 13 and the electrode assembly 14 at its front end are more in line with the lesion site, so as to facilitate more accurate operation. Of course, in other embodiments, the cutter head body 12 is made of a non-bendable material such as a hard steel tube, or the cutter head body 12 is divided into two end structures that are hinged to each other.

[0039] The rear end of the blade body 12 is connected and fixed to the handle 11, and a part of the rear end of the blade body 12 can be inserted into the handle 11. The connection method between the two is not limited, such as plugging, clamping, welding, bonding, etc. The blade body 12 mainly plays the role of connecting and supporting the insulator. Of course, if the blade body 12 is hollow, a wire 111 can be passed through it, that is, the wire 111 extends from the inside of the blade body 12 to its front end and is electrically connected to the electrode assembly 14. The rear end of the wire 111 is electrically connected to the cable 110 to connect the electrode assembly 14 to the RF host.

[0040] The diameter and length of the blade body 12 are not limited and can be set as needed. They can be thick or thin, long or short. For example, in this embodiment, the diameter of the blade body 12 is 3mm-5mm, preferably 3mm, 4mm, 5mm, etc. If it is a special case or used for surgery in other parts of the body, a thinner or thicker blade body 12 can be selected according to the actual situation.

[0041] The insulating seat 13 is arranged at the front end of the cutter head body 12, and the connection method between the two is not limited, such as bonding, welding, clamping, plugging, etc. In this embodiment, the following schemes can be adopted but are not limited to: a tubular portion is provided at the front end of the cutter head body 12, and a plug-in portion is provided at the rear end of the insulating seat 13, and the plug-in portion is inserted into the tubular portion and the two are fixed.

[0042] The insulating base 13 has a back side 130 and a front side 131 , and the back side 130 and the front side 131 are located on opposite sides of the insulating base 13 .

[0043] For the convenience of description, the following definition is made here: the insulating seat 13 has a front-to-back direction, a thickness direction and a left-to-right direction. The front-to-back direction of the insulating seat 13 is consistent with the front-to-back direction of the rhinitis ablation electrode 10. The thickness direction of the insulating seat 13 refers to the direction from the back side 130 to the front side 131 or from the front side 131 to the back side 130. The front-to-back direction, thickness direction and left-to-right direction of the insulating seat 13 can be perpendicular to each other.

[0044] Among them, in the direction from back to front, the front side 131 gradually shrinks toward the back side 130, that is, the front side 131 shrinks toward the middle part of the insulating seat 13 (it can also cross the middle part), and the front side 131 gradually approaches the back side 130 along the thickness direction of the insulating seat 13, that is, the front side 131 gradually shrinks toward the back side 130, so that the thickness of the insulating seat 13 is gradually reduced, and the recessed part forms a vacant area 134. Such an arrangement can reduce the volume of the insulating seat 13 as much as possible while ensuring the strength of the insulating seat 13, so as to make more space for placing the electrode assembly 14 or other components. The shapes of other parts of the insulating seat 13 are not limited, for example, it can be a cylindrical surface, a prismatic surface, etc.

[0045] The back side 130 may be a plane parallel to the front-to-back direction, or may be gradually processed. For example, the back side 130 gradually shrinks toward the front side 131 or the middle part of the insulating seat 13. Similarly, the two sides of the insulating seat 13 may also be appropriately gradually processed so that the cross-sectional area gradually decreases from the back to the front. With such a configuration, the insulating seat 13 may be prevented from blocking the electrode assembly 14 as much as possible, the field of vision may be more exposed, and the operation may be more precise. Of course, in some embodiments, it is also possible that the back side 130 and the two sides of the insulating seat 13 are not gradually processed.

[0046] The contraction style of the front surface 131 is not limited, and the following two solutions may be adopted but are not limited to: For the first solution, please combine Figure 5 As shown, the front surface 131 is in a gradually changing slope shape, and the front surface 131 can be a plane, a curved surface, or a part of a plane and a part of a curved surface, or composed of a plurality of intersecting planes. Such a configuration makes the contraction of the front surface 131 relatively gentle and smooth.

[0047] In a second solution (not shown in the figure), the front side 131 is in a stepped shape, and the front side 131 has a plurality of steps. The number of steps is not limited, for example, one, two, three, etc., and any two adjacent steps drop off in a cliff-like manner.

[0048] Of course, in other embodiments, the front side 131 may also adopt the above two solutions at the same time, that is, a part of the front side 131 adopts the first solution, and the other part adopts the second solution.

[0049] The electrode assembly 14 is fixed on the insulating seat 13 and can output radio frequency energy at the lesion site. If the blade body 12 is made of a conductive metal material, the electrode assembly 14 needs to be insulated from the blade body 12. If the blade body 12 is made of a non-conductive non-metallic material, the electrode assembly 14 can be in contact with the blade body 12 or not.

[0050] Specifically, the electrode assembly 14 includes two electrode bodies, which are arranged side by side. The two electrode bodies can be located in the vacant area 134. The two electrode bodies have opposite electrical polarities. The two electrode bodies are respectively a working electrode 140 and a loop electrode 141. The working electrode 140 and the loop electrode 141 are arranged oppositely. The working electrodes can be distributed along the left and right directions of the insulating seat 13. The working electrode 140 and the loop electrode 141 are respectively adjacent to the left and right sides of the insulating seat 13. The "two electrode bodies" mentioned here are only the minimum number. In other embodiments, the number of electrode bodies can also be three, four, etc.

[0051] There is a certain distance between the working pole 140 and the loop pole 141 , and the size of the distance can be set as needed, such as 1mm-5mm, preferably 1mm, 2mm, 3mm, 4mm, 5mm, etc., which will not be repeated here.

[0052] The working pole 140 and the return pole 141 are electrically connected to the two poles of the radio frequency host through the cable 110 and the wire 111 respectively. The cable 110 can pass through the inside of the cutter head body 12.

[0053] The two electrode bodies are identical, for example, they have the same shape and size, and are made of conductive metal material. The electrode bodies may be wire electrodes, sheet electrodes, etc. In the present embodiment, the electrode body adopts a wire electrode, and its diameter may be set as needed, for example, 0.3mm-1mm, preferably 0.3mm, 0.5mm, 0.7mm, 1mm, etc. If it is a special case or used in surgery at other parts of the body, a thinner or thicker electrode wire may be selected according to the actual situation.

[0054] The electrode body is arranged on the insulating seat 13, and the electrode body extends to the front end and the vacant area 134 at the same time. When the electrode body is working, the front end and the front face of the electrode body form a continuous working surface. Specifically, in this embodiment, the electrode body extends from the front end of the insulating seat 13 and bends to extend to the middle of the front face 131. The extension length of the electrode body from the front end of the insulating seat 13 is not limited. Please combine Figure 8 As shown, if the extended length is large, a portion of the electrode body may be covered with an insulating layer, which may be a heat shrink tube or other styles. Of course, the extended portion may not be covered with an insulating layer. That is, the electrode body may be extended further to the front end without changing the length of the insulating seat 13, or the length of the insulating seat 13 may be reduced to make the exposed length of the electrode body larger.

[0055] The above-mentioned “the electrode body extends from the front end of the insulating seat 13” does not mean “the electrode body extends from the front end surface of the insulating seat 13”, but “the electrode body extends forward from the front end surface of the insulating seat 13 or a position close to the front end surface”. Generally speaking, the electrode body extends beyond the front end of the insulating seat 13, and the length of the extension can be 0-2mm. Of course, in other embodiments, the solution in which the electrode body is located behind the front end of the insulating seat 13 is not excluded, that is, the electrode body does not extend beyond the front end of the insulating seat 13. However, relatively speaking, this solution is relatively less convenient to operate and is not convenient to operate in the nasal cavity.

[0056] The working pole 140 and the return pole 141 form a continuous working surface at the front end and the front side of the insulating seat 13. The continuous working surface includes the front working surface and the front working surface, and has a wider range of applications. The doctor does not need to shape the blade body 12 during the operation, and can easily perform nerve ablation treatment in the sphenopalatine orifice and inferior turbinate. The front working surface of the electrode is used when treating the nerves in the sphenopalatine orifice, and the front working surface of the electrode is used when treating the nerves in the inferior turbinate.

[0057] The electrode body is located in the vacant area 134, and the front side 131 adopts a stepped or gradient design, which can ensure that the front end of the rhinitis ablation electrode 10 can minimize the volume while ensuring that its single-sided contact surface with the lesion tissue is larger, and there is no need to bend the blade body 12.

[0058] The electrode body itself is wound into a ring shape, or the electrode body and the insulating seat 13 cooperate to form a ring shape, and the ring shape can be a circular ring shape, a square ring shape, a polygonal shape or an irregular shape.

[0059] In order to make the electrode body contact with the lesion tissue better, in this embodiment, the electrode body protrudes from the outermost side of the proximal end of the insulating seat 13 in the front side, Figure 5 For example, the lowermost end of the electrode body is lower than the lowermost end on the left side of the insulating seat 13. Of course, in other embodiments, it is also possible that the electrode body is lower than the outermost proximal end of the insulating seat 13 on the front side.

[0060] If the electrode body cooperates with the insulating seat 13 to form a ring, the electrode body can be an arc, a circle, an ellipse, etc., or a straight line with multiple intersecting sections. In this embodiment, please refer to Figure 5. The electrode body includes a first section 142, a second section 143, a third section 144, and a fourth section 145. The lengths of the first section 142, the second section 143, the third section 144, and the fourth section 145 can be set as needed. The first section 142, the second section 143, the third section 144, and the fourth section 145 are connected in sequence. The parts can be integrally formed or separately set and welded. The first section 142, the second section 143, the third section 144, and the fourth section 145 can be straight sections, arc sections, or partly straight sections and partly arc sections. In other embodiments, the electrode body may also adopt other various shapes. For example, the electrode body may also be divided into a straight section and an arc section. The straight section extends from the front end of the insulating seat 13 and is a straight segment. The arc section extends backward from the front end of the straight section. Moreover, the arc section adopts an arc shape, such as a circular arc, a semicircular shape, an elliptical shape, etc.

[0061] There can be a smooth transition or a non-smooth transition between the first section 142 and the second section 143, between the second section 143 and the third section 144, and between the third section 144 and the fourth section 145. Since the front working surface and the front working surface need to contact the lesion site, it is preferred that the second section 143 and the third section 144, and between the third section 144 and the fourth section 145 have a smooth transition, that is, an arc structure is used at the intersection.

[0062] The first section 142 and the third section 144 extend along the front-to-back direction of the insulating seat 13, the second section 143 and the fourth section 145 extend along the thickness direction of the insulating seat 13, the end of the fourth section 145 is located in the middle of the front side 131, and the electrode body as a whole is in the shape of a "mouth" with one corner missing.

[0063] In conventional procedures, the doctor needs to hold a hard mirror in one hand and an electrode in the other hand to perform the operation, which requires a large space to accommodate the coordinated use of the mirror and the electrode. If the nasal cavity structure is abnormally narrow, such as a deviated nasal septum or swollen nasal mucosa, the mirror and the electrode will often fight for space, making the doctor's operation very inconvenient. Therefore, a narrow nasal cavity requires as few surgical instruments as possible.

[0064] Therefore, in this embodiment, please combine Figure 6As shown, the rhinitis ablation electrode 10 may further include a camera 15, which is disposed on the insulating seat 13, and the front end of the camera 15 extends from between the two electrode bodies, and the front working surface and the front working surface need to fall within the field of view of the camera 15. The front working surface and the front working surface may fall within the field of view of the camera 15 at the same time, or the direction of the camera 15 may be adjusted so that at least one of the two falls within the field of view of the camera 15 at a certain moment. Of course, in other embodiments, the rhinitis ablation electrode 10 may not include the camera 15.

[0065] The style of the camera 15 is not limited, and can refer to the existing technology. In this embodiment, the camera 15 is a lighted endoscope module 150, which is composed of an endoscope module 150, an LED lamp 151 and a connecting wire 152, wherein the LED lamp 151 is a light source, which can illuminate the surgical area, and the connecting wire 152 can be a part of the cable 110, and the two can also be independently set and electrically connected. The endoscope module 150 captures the image through the lens, converts the light signal into an electrical signal; then it is digitized by the image sensor; finally, the processed image is displayed on the screen by the control unit, which helps the doctor to accurately judge the condition, find the appropriate surgical site and observe the progress of the operation.

[0066] Integrating the camera 15 into the electrode without increasing the size of the rhinitis ablation electrode 10 not only increases the doctor's operating space in the nasal cavity, but also enables the doctor to operate with one hand, which can free up one hand for other things.

[0067] The connection method of the camera 15 and the insulating seat 13 is not limited, for example, the two are fixedly connected or integrally formed, and the position of the camera 15 on the insulating seat 13 can remain stationary or can slide forward and backward relative to the insulating seat 13. If the camera 15 can slide forward and backward on the insulating seat 13, the field of view of the camera 15 can be changed, which is convenient for the doctor to adjust the field of view in time.

[0068] In this embodiment, the following solutions can be adopted but are not limited to: Figure 7 As shown, the insulating seat 13 is provided with a mounting hole 132, the mounting hole 132 penetrates the insulating seat 13 in the front-to-back direction, the front end of the mounting hole 132 is located at the front side 131, the camera 15 is inserted into the mounting hole 132, and the front end of the camera 15 extends out from the front end of the mounting hole 132, and the cable 110 of the camera 15 is inserted into the cutter head body 12. In this arrangement, the camera 15, the working pole 140 and the return pole 141 are all arranged on the insulating member, and the camera 15 is located between the working pole 140 and the return pole 141, which is convenient for observing the nasal cavity structure, finding a suitable surgical site and observing the progress of the surgery.

[0069] In addition, conventional electrodes need to realize both suction and flushing functions. Generally, two holes are configured at the top of the electrode. One hole is connected to the suction tube to realize the suction function, and the other hole is connected to the flushing tube to realize the flushing function. In this way, the size of the top of the electrode will be larger, making the already tight nasal space even narrower, and the flexibility of the instrument will be even less, which will affect the operability of the operation and the actual use effect.

[0070] Therefore, in this embodiment, the rhinitis ablation electrode 10 may further include a flushing and suction component 16, which is used to flush the surgical area and suck out waste liquid from the surgical area. Of course, in other embodiments, the rhinitis ablation electrode 10 does not include the flushing and suction component 16, but can also be used in conjunction with an independent flushing and suction component 16.

[0071] Generally speaking, the flushing and suction component 16 can be used in conjunction with the syringe 163, and of course, can also be used in conjunction with other water supply components. The "syringe 163" is introduced here for the convenience of description. The syringe 163 can be regarded as a component of the flushing and suction component 16, or it can be regarded as a component of the flushing and suction component 16, and is only used in conjunction with it during use.

[0072] Please combine Fig. 9 , Fig.10 As shown, the flushing and suction assembly 16 includes a flushing and suction pipe 160 , a suction pipe 161 and a three-way joint 162 , and the three-way joint 162 is arranged between the flushing and suction pipe 160 and the suction pipe 161 .

[0073] Please combine Figure 3 , Figure 4 , Figure 6 As shown, the insulating member is provided with a suction flushing hole 133, and the size and position of the suction flushing hole 133 are not limited. The flushing and suction pipe 160 is arranged in the cutter head body 12 and passes through the suction flushing hole 133. The front end of the flushing and suction pipe 160 extends from the front end of the insulating seat 13, and the front end of the flushing and suction pipe 160 can be located between the working pole 140 and the return pole 141; the rear end of the suction pipe 161 is connected to the aspirator. Of course, in other embodiments, the suction flushing hole 133 may not be provided on the insulating member, for example, the front end of the flushing and suction pipe 160 extends from one side of the insulating seat 13 to between the working pole 140 and the return pole 141; and the front end of the flushing and suction pipe 160 may not be located between the working pole 140 and the return pole 141, for example, the front end of the flushing and suction pipe 160 is located behind or on one side of the working pole 140 or the return pole 141.

[0074] The three-way connector 162 includes a main body and a valve switch. A flow channel is arranged in the main body. The valve switch is used to control the opening and closing of different flow channels in the main body.

[0075] The main body adopts a three-way pipe structure, and has three interfaces, namely, port A 164, port B 165 and port C 166, wherein port A 164 cooperates with flushing and suction tube 160 and the two are connected, port B 165 cooperates with suction tube 161 and the two are connected, and port C 166 is used to communicate with syringe 163, etc. Of course, port C 166 and syringe 163 can also be indirectly connected through a flushing tube.

[0076] The connection method between the A port 164 and the flushing and suction tube 160, between the B port 165 and the suction tube 161, and between the C port 166 and the syringe 163 is not limited, and can be integrally formed, or can be plug-fitted, threaded, etc.

[0077] The interior of the main body is divided into three sections, namely, the flushing and suction section, the suction section and the flushing section. The valve switch is set at the intersection of the flushing and suction section, the suction section and the flushing section. When the flushing and suction section and the suction section are connected, a suction channel is formed, and when the flushing and suction section and the flushing section are connected, a flushing channel is formed. When the valve switch is turned, the suction channel and the flushing channel can be selectively connected, that is, there can be two states: the flushing and suction section is connected to the suction section and the flushing section is disconnected, and the flushing and suction section is connected to the flushing section and the flushing and suction section is disconnected.

[0078] The style of the valve switch is not limited, and can be a screw type, a press type, etc. The three-way connector 162 selectively connects the flushing and suction tube 160 with the suction tube 161 or connects the flushing and suction tube 160 with the syringe 163. For details: Fig. 9 As shown, when the valve switch is in the first position, the A port 164 is connected to the B port 165, that is, the flushing and suction tube 160 is connected to the suction tube 161. At this time, the A port 164 and the C port 166 are closed, that is, the flushing and suction tube 160 and the syringe 163 are not connected. Under the action of the aspirator, the nose blood or nasal mucus or waste physiological saline in the surgical area can be sucked out to keep the surgical area clean. In this state, the syringe 163 can also be not installed; please combine Fig.10 As shown, when the valve switch is rotated or pressed to the second position, port A 164 is connected to port C 166, that is, the flushing and suction tube 160 is connected to the syringe 163. At this time, port A 164 and port B 165 are closed, that is, the flushing and suction tube 160 and the suction tube 161 are not connected. The syringe 163 can deliver physiological saline solution used for flushing to the surgical area to flush the nasal cavity, prevent the camera 15 from fogging, and make the field of view clearer. Fig. 9 and Fig.10 The arrow direction beside the flushing and suction assembly 16 in the figure represents the flow direction of the physiological saline or waste liquid etc. inside the flushing and suction assembly 16.

[0079] Since the ablation treatment of rhinitis does not require both suction and flushing functions, by improving the structure of the flushing and suction component 16, the structure that realizes the suction function and the structure that realizes the flushing function are integrated into a whole. The slim shape can effectively save operating space, especially in the narrow cavity of the nasal cavity, the advantage is more obvious.

[0080] In addition, in some embodiments, in order to enable medical staff to more directly understand the status of the flushing and suction assembly 16, an identification structure can be added. For example, the valve switch is provided with a wrench, and the wrench has two stop points, namely the first stop point and the second stop point: when the wrench is at the first stop point, the wrench extends along the axial direction of the suction section, at this time, the flushing and suction section and the flushing section are connected; when the wrench is at the second stop point, the wrench extends along the axial direction of the flushing section, at this time, the flushing and suction section and the suction section are connected. Of course, in other embodiments, other schemes can also be adopted, for example: when the wrench is at the first stop point, the flushing and suction section and the flushing section are connected; when the wrench is at the second stop point, the flushing and suction section and the suction section are connected.

[0081] In addition, a mark such as "ON" or "OFF" can be set on the wrench so that medical personnel can know which way the wrench is facing and whether it is open or closed.

[0082] Embodiment 2: Embodiment 2 of the present invention provides a rhinitis ablation electrode 10 . The difference between this embodiment and Embodiment 1 lies in the matching relationship among the blade body 12 , the insulating seat 13 and the camera 15 .

[0083] Please combine Figure 11-13 As shown, a card slot 121 is provided on one side of the insulating seat 13. The position, shape and size of the card slot 121 are not limited, for example, it can be located on the first side, left and right sides, etc. of the insulating seat 13. The camera 15 is embedded in the card slot 121. The fixing method of the two is not limited, such as card connection and bonding. In the present embodiment, plug-in bosses 122 are provided on both sides of the camera 15. The cross-section of the plug-in boss 122 can be arc-shaped, triangular, rectangular, etc., and plug-in slides 123 are provided on both sides of the card slot 121. The shape of the plug-in slide 123 matches the plug-in boss 122, and the two can be the same or approximately the same. The plug-in boss 122 is slidably embedded in the plug-in slide 123, and the plug-in boss 122 can slide back and forth along the plug-in slide 123, thereby adjusting the position of the camera 15.

[0084] A threading groove 120 is provided on one side of the cutter body 12. The threading groove 120 is recessed inwardly and its shape is not limited. For example, its cross-section can be a major arc shape, a minor arc shape, a rectangle, etc. The cable 110 of the camera 15 is embedded in the threading groove 120, and the two can be snap-fitted to facilitate wiring.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rhinitis ablation electrode, characterized in that: It comprises a handle, a blade body, an insulating seat and an electrode assembly which are connected in sequence; the front side of the insulating seat gradually shrinks from the back to the front side toward the back side to form a vacant area; the electrode assembly comprises two electrode bodies arranged side by side, the electrode bodies have opposite electrical polarities, the electrode bodies are arranged in the insulating seat and extend toward the vacant area and the front end at the same time, so that a continuous working surface is formed at the front end and the front side when working.

2. The rhinitis ablation electrode according to claim 1, characterized in that: The front side is in a slope or step shape.

3. The rhinitis ablation electrode according to claim 1, characterized in that: The two electrode bodies are identical, and the electrode bodies are in the shape of wires or sheets.

4. The rhinitis ablation electrode according to claim 1, characterized in that: Each electrode body is wound into a ring shape, or cooperates with an insulating seat to form a ring shape.

5. The rhinitis ablation electrode according to claim 4, characterized in that: The electrode body includes a first section, a second section, a third section and a fourth section which are arranged in sequence. The first section and the third section extend in a front-to-back direction, and the second section and the fourth section extend in a thickness direction of the insulating seat.

6. The rhinitis ablation electrode according to claim 1, characterized in that: Seen from the side, the electrode body protrudes outwardly from the proximal outermost side of the insulating seat on the front side.

7. The rhinitis ablation electrode according to claim 1, characterized in that: It also includes a camera, which is arranged on the insulating seat and located between the two electrode bodies, so that the camera faces the working surface of the electrode body.

8. The rhinitis ablation electrode according to claim 7, characterized in that: The camera and the insulating seat are slidably matched along the front-rear direction.

9. The rhinitis ablation electrode according to claim 7, characterized in that: The insulating seat is provided with a mounting hole, the mounting hole penetrates the insulating seat along the front-to-back direction, and the camera is inserted into the mounting hole.

10. The rhinitis ablation electrode according to claim 7, characterized in that: A threading groove is arranged on one side of the cutter head body, a card slot is arranged on one side of the insulating seat, and the camera is embedded in the card slot.

11. The rhinitis ablation electrode according to claim 10, characterized in that: Insertion bosses are arranged on both sides of the camera, and insertion slide grooves are arranged on both sides of the card slot, and the insertion bosses are slidably embedded in the insertion slide grooves.

12. The rhinitis ablation electrode according to any one of claims 1 to 11, characterized in that: It also includes a flushing and suction component, which includes a flushing and suction tube, a suction tube and a three-way joint. The three-way joint is arranged between the flushing and suction tube and the suction tube and can be used in conjunction with a syringe. The three-way joint selectively connects the flushing and suction tube with the suction tube or connects the flushing and suction tube with a syringe.

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