A rhinitis ablation electrode

Abstract

The present invention relates to a rhinitis ablation electrode, belonging to the technical field of medical devices. The rhinitis ablation electrode comprises a handle, a blade body, an insulating seat and an electrode assembly connected in sequence; the insulating seat has a back side and a front side, and the front side gradually shrinks toward the back side from the back to the front; the electrode assembly comprises two electrode bodies arranged opposite to each other, and the electrode bodies extend from the front end of the insulating seat and bend to extend to the middle of the front side, so as to form working surfaces at the front end and the first side of the insulating seat. The rhinitis ablation electrode provided by the present invention has a front side of the insulating seat that shrinks inward, and a working surface is formed at the front end and one side of the insulating seat, which can perform ablation treatment on different lesion sites, and ensures that the contact surface of the single side with the tissue is larger 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.

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:

[0010] 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.

[0011] As an optional solution, the front side is in a gradually sloped shape.

[0012] As an option, the front side is stepped.

[0013] As an optional solution, the two electrode bodies are identical, and the electrode bodies are in a wire-like or sheet-like shape.

[0014] As an optional solution, each electrode body is wound into a ring shape, or cooperates with an insulating seat to form a ring shape.

[0015] 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.

[0016] 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.

[0017] As an alternative, 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 bodies.

[0018] As an alternative, the camera and the insulating seat are slidably engaged in the front-rear direction.

[0019] As an alternative, the insulating seat is provided with a mounting hole that penetrates the insulating seat in the front-rear direction, and the camera is inserted into the mounting hole.

[0020] As an alternative, a wire threading groove is provided on one side of the cutter head body, a clamping groove is provided on one side of the insulating seat, and the camera is embedded in the clamping groove.

[0021] As an alternative, plugging bosses are provided on both sides of the camera, plugging chutes are provided on both sides of the clamping groove, and the plugging bosses are slidably embedded in the plugging chutes.

[0022] As an alternative, the rhinitis ablation electrode further includes a flushing and suction assembly, which includes a flushing tube, a suction tube, and a three-way joint. The three-way joint is disposed between the flushing tube and the suction tube and can be used in cooperation with a syringe. The three-way joint selectively connects the flushing tube and the suction tube or connects the flushing tube and the syringe.

[0023] As an alternative, the three-way joint includes a main body and a valve switch. The valve switch is rotatably disposed on the main body. The main body includes a flushing and suction section, a suction section, and a flushing section. The valve switch is disposed 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 rotates, it can selectively connect the suction channel and the flushing channel.

[0024] As an alternative, the valve switch is provided with a wrench. 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.

[0025] As an alternative, the valve switch is provided with a wrench. The valve switch has a suction state in which it extends along the axial direction of the suction tube, and a flushing state in which it extends along the axial direction of the syringe.

[0026] The beneficial effects of the present invention are:

[0027] The rhinitis ablation electrode provided by the present invention has a front surface of the insulating seat that shrinks inward to form a vacant area, which is beneficial to expanding the working surface of the electrode body in 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 with the tissues in the nasal cavity, and this working surface can cooperate with the front working surface to more thoroughly ablate the concave posterior part of the middle nasal meatus. On the premise of minimizing the front-end volume as much as possible, the present invention ensures that the contact surface with the tissue on one side is larger, and there is no need to bend the tool head body during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. As shown in the drawings, the above-mentioned and other objects, features, and advantages of the present invention will become clearer. The same reference numerals indicate the same parts in all the drawings. The drawings are not deliberately drawn to scale in actual size, and the focus is on showing the gist of the present invention.

[0029] Figure 1 It is a schematic structural diagram of the rhinitis ablation electrode provided in Embodiment 1 of the present invention;

[0030] Figure 2 is Figure 1 a partial enlarged schematic view of part A;

[0031] Figure 3 It is a schematic front-end structure diagram of the rhinitis ablation electrode provided in Embodiment 1 of the present invention Figure 1 ;

[0032] Figure 4 It is a schematic front-end structure diagram of the rhinitis ablation electrode provided in Embodiment 1 of the present invention Figure 2 ;

[0033] Figure 5 It is a schematic front-end structure diagram of the rhinitis ablation electrode provided in Embodiment 1 of the present invention Figure 3 - side view;

[0034] Figure 6 It is a schematic structure diagram of the camera of the rhinitis ablation electrode provided in Embodiment 1 of the present invention Figure 1 ;

[0035] Figure 7 It is an exploded schematic view of the front end of the rhinitis ablation electrode provided in Embodiment 1 of the present invention;

[0036] Figure 8Another front-end structure schematic diagram of the rhinitis ablation electrode provided in the first embodiment of the present invention;

[0037] Figure 9 One state schematic diagram of the flushing and suction assembly of the rhinitis ablation electrode provided in the first embodiment of the present invention;

[0038] Figure 10 Another state schematic diagram of the flushing and suction assembly of the rhinitis ablation electrode provided in the first embodiment of the present invention;

[0039] Figure 11 Front-end (without camera) structure schematic diagram of the rhinitis ablation electrode provided in the second embodiment of the present invention;

[0040] Figure 12 Structural schematic of the camera of the rhinitis ablation electrode provided in the second embodiment of the present invention Figure 2 ;

[0041] Figure 13 is Figure 11 and Figure 12 Schematic diagram of the cooperation relationship.

[0042] Icons: 10 - Rhinitis ablation electrode; 11 - Handle; 12 - Knife head body; 13 - Insulating seat; 14 - Electrode assembly; 15 - Camera; 16 - Flushing and suction assembly; 110 - Cable; 111 - Conducting wire; 120 - Threading groove; 121 - Card slot; 122 - Plugging boss; 123 - Plugging chute; 130 - Back surface; 131 - Front surface; 132 - Mounting hole; 133 - Suction and flushing hole; 134 - Empty area; 140 - Working electrode; 141 - Return electrode; 142 - First section; 143 - Second section; 144 - Third section; 145 - Fourth section; 150 - Endoscope module; 151 - LED lamp; 152 - Connecting wire; 160 - Flushing pipe; 161 - Suction pipe; 162 - Three-way joint; 163 - Syringe; 164 - Port A; 165 - Port B; 166 - Port C. Detailed implementation manners

[0043] To make the objectives, 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 with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0044] Accordingly, 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 claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0045] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0046] In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0047] Embodiment 1: Please refer to Figure 1 As shown, Embodiment 1 of the present invention provides a rhinitis ablation electrode 10, which is used for electrical connection with a radiofrequency host and can ablate the parasympathetic nerves on the nasal side wall at the lesion site, thereby blocking the posterior inferior nasal nerves. Of course, the rhinitis ablation electrode 10 can also be applied to ablate other lesion sites or be applied in open surgeries.

[0048] First of all, it should be noted that the "front" and "rear" mentioned in this embodiment are defined based on the positional relationship with the lesion site. Close to the lesion site is the "front", that is, the proximal end, and far from the lesion site is the "rear", that is, the distal end. Of course, the definitions of "front" and "rear" are only relative and not absolute positions, for reference only.

[0049] Among them, please combine Figures 1 - 5 As shown, the rhinitis ablation electrode 10 mainly consists of a handle 11, a cutter head body 12, an insulating seat 13, and an electrode assembly 14. The handle 11, the cutter head body 12, the insulating seat 13, and the electrode assembly 14 are connected in sequence, that is, the rear end of the cutter head body 12 is connected to the handle 11, the insulating seat 13 is located at the front end of the cutter head body 12, and the electrode assembly 14 is installed on the insulating seat 13. The following will discuss each component of the rhinitis ablation electrode 10 in detail.

[0050] The handle 11 is mainly used for doctors to hold. Switch buttons and the like can be provided on the handle 11. Doctors can grasp the handle 11 and press the switch in due course to control the operation or shutdown of the rhinitis ablation electrode 10, or adjust the position of the electrode assembly 14.

[0051] The structure of the handle 11 is not limited and can refer to the prior art. For example, the handle 11 can be of various types such as cylindrical, flat, irregular shapes, etc. Moreover, the material and manufacturing method of the handle 11 are not limited. It can be an integral structure or composed of two half-shells spliced together, which will not be elaborated 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 for electrically connecting to the radiofrequency host, and the radiofrequency host can provide radiofrequency 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.

[0052] The knife head body 12 is a rod-shaped structure and can be rod-shaped or tubular, etc., such as round rod-shaped, square rod-shaped, round tubular, square tubular, triangular tubular, etc. The material of the knife head body 12 is not limited and can be metal material, non-metal material, etc. The knife head body 12 can be straight or pre-bent at a certain angle, and the bending angle is not limited and can be set according to needs. In this embodiment, the knife head body 12 can be made of soft or semi-hard stainless steel tube. During the operation, the doctor can adjust the bending angle of the knife head body 12 according to the surgical needs, so that the insulating seat 13 and the electrode assembly 14 at its front end are more closely attached to the lesion site, facilitating more accurate surgery. Of course, in other embodiments, it is also possible that the knife head body 12 is made of non-bendable materials such as hard steel pipe, or the knife head body 12 is divided into two ends that are hinged to each other, etc.

[0053] The rear end of the knife head body 12 is fixedly connected to the handle 11. A part of the rear end of the knife head body 12 can be inserted into the handle 11, and the connection method between the two is not limited, such as plugging, clamping, welding, bonding, etc. The knife head body 12 mainly plays the role of connecting and supporting the insulator. Of course, if the inside of the knife head body 12 is hollow, a wire 111 can also be passed through it, that is, the wire 111 extends from the inside of the knife head body 12 to its front end and is electrically connected to the electrode assembly 14, and the rear end of the wire 111 is electrically connected to the cable 110 to connect the electrode assembly 14 to the radiofrequency host.

[0054] The diameter and length of the knife head body 12 are not limited and can be set according to needs, and can be thick or thin, long or short. For example, in this embodiment, the diameter of the knife head body 12 is 3 mm - 5 mm, preferably 3 mm, 4 mm, 5 mm, etc. In case of special circumstances or for surgeries in other parts, a thinner or thicker knife head body 12 can be selected according to the actual situation.

[0055] The insulating seat 13 is arranged at the front end of the knife 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 solutions can be adopted but are not limited to: a tubular part is arranged at the front end of the knife head body 12, and a plugging part is arranged at the rear end of the insulating seat 13, and the plugging part is inserted into the tubular part and the two are fixed.

[0056] 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 .

[0057] 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.

[0058] 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.

[0059] 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.

[0060] The contraction style of the front surface 131 is not limited, and the following two solutions may be adopted but are not limited to:

[0061] 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.

[0062] 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.

[0063] Of course, in other embodiments, the front surface 131 may also adopt the above two solutions at the same time, that is, a part of the front surface 131 adopts the first solution, and another part adopts the second solution.

[0064] The electrode assembly 14 is fixed on the insulating seat 13 and can output radio frequency energy at the lesion site. If the cutter head body 12 is made of a conductive metal material, the electrode assembly 14 needs to be insulated from the cutter head body 12. If the cutter head body 12 is made of a non-conductive non-metal material, the electrode assembly 14 can be in contact or not in contact with the cutter head body 12.

[0065] 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 polarities of the two electrode bodies are opposite. The two electrode bodies are the working electrode 140 and the return electrode 141 respectively. The working electrode 140 and the return electrode 141 are arranged opposite to each other. The working electrode can be distributed in the left-right direction of the insulating seat 13. The working electrode 140 and the return electrode 141 are adjacent to the left and right sides of the insulating seat 13 respectively. The so-called "two electrode bodies" herein is only the minimum quantity. In other embodiments, the quantity of the electrode bodies can also be three, four, etc.

[0066] There is a certain distance between the working electrode 140 and the return electrode 141. The size of the distance can be set as needed, such as 1 mm - 5 mm, preferably 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc., which will not be elaborated here.

[0067] The working electrode 140 and the return electrode 141 are electrically connected to the two poles of the radio frequency main unit through a cable 110 and a wire 111 respectively. The cable 110 can pass through the inside of the cutter head body 12.

[0068] The two electrode bodies are the same, for example, having the same shape, the same size, etc. The electrode bodies are made of a conductive metal material. The electrode bodies can be filament electrodes, sheet electrodes, etc. In this embodiment, the electrode bodies adopt filament electrodes, and their diameters can be set as needed, for example, 0.3 mm - 1 mm, preferably 0.3 mm, 0.5 mm, 0.7 mm, 1 mm, etc. In special cases or for surgeries in other parts, electrode wires with finer or coarser diameters can be selected according to the actual situation.

[0069] The electrode bodies are arranged on the insulating seat 13, and the electrode bodies extend forward and into the vacant area 134 at the same time. When the electrode bodies are working, the front ends of the electrode bodies and the front surface form a continuous working surface. Specifically, in this embodiment, the electrode bodies extend out from the front end of the insulating seat 13 and bend to extend to the middle of the front surface 131. The length of the electrode bodies extending out from the front end of the insulating seat 13 is not limited. Please refer to Figure 8As shown, if the extension length is relatively large, a part of the electrode body can be coated with an insulating layer, which can be a heat shrink tube or other styles. Of course, it is also possible not to coat the insulating layer on the extended part. That is, without changing the length of the insulating seat 13, the electrode body can extend further forward, or the length of the insulating seat 13 can be reduced to make the exposed length of the electrode body larger.

[0070] The statement that "the electrode body extends from the front end of the insulating seat 13" mentioned above does not mean that "the electrode body extends from the front end face of the insulating seat 13", but rather "the electrode body extends forward from the front end face or a position near the front end face of the insulating seat 13". Generally speaking, the electrode body extends beyond the foremost end of the insulating seat 13, and the extension length can be 0 - 2 mm. Of course, in other embodiments, a scheme where the electrode body is located behind the foremost end of the insulating seat 13 is not excluded, that is, the electrode body does not extend beyond the foremost end of the insulating seat 13. However, relatively speaking, the operability of this scheme is relatively poor and it is not convenient to operate in the nasal cavity.

[0071] The working electrode 140 and the return electrode 141 form a continuous working surface at the front end and the front face of the insulating seat 13. The continuous working surface includes a front-end working surface and a front-face working surface, with a wider application range. During the operation, doctors do not need to shape the cutter head body 12 to easily perform nerve ablation on parts such as the sphenopalatine foramen and the inferior nasal concha. When dealing with the nerves at the sphenopalatine foramen, the front-end working surface of the electrode is used, and when dealing with the nerves at the inferior nasal concha, the front-face working surface of the electrode is used.

[0072] The electrode body is located within the vacant area 134, and the front face 131 adopts a stepped or gradient design, which can ensure that the front end of the rhinitis ablation electrode 10 can guarantee a larger contact surface with the lesion tissue on one side while minimizing the volume as much as possible, and there is no need to bend the cutter head body 12.

[0073] The electrode body is wound into a ring by itself or the electrode body cooperates with the insulating seat 13 to form a ring, and the ring can be circular, square, polygonal or irregular in shape, etc.

[0074] In order to enable the electrode body to better contact the lesion tissue, in this embodiment, when viewed from the side, the electrode body protrudes from the outermost side of the proximal end of the insulating seat 13 on the front face. Figure 5 For example, the lowermost end of the electrode body is lower than the lowermost end of 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 side of the proximal end of the insulating seat 13 on the front face.

[0075] If the electrode body and the insulating seat 13 cooperate to form a ring shape, the electrode body can be arc-shaped, circular, oval, etc., or can be a multi-segment intersecting straight line shape. In this embodiment, as shown in FIG. 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. These parts can be integrally formed or separately provided and welded. The first section 142, the second section 143, the third section 144, and the fourth section 145 can be straight line segments, arc segments, or part of them are straight line segments and part of them are arc segments. In other embodiments, the electrode body can also adopt various other shapes. For example, the electrode body can 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 line segment, and the arc section extends backward from the front end of the straight section, and the arc section adopts an arc shape, such as a circular arc, a semi-circular arc, an oval arc, etc.

[0076] 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, it can be smoothly transitioned or non-smoothly transitioned. Since the front working surface and the front face working surface need to contact the lesion site, therefore, between the second section 143 and the third section 144, and between the third section 144 and the fourth section 145, a smooth transition is preferred, that is, an arc structure is adopted at the intersection.

[0077] The first section 142 and the third section 144 extend along the front-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, and the end of the fourth section 145 is located in the middle of the front face 131. The electrode body as a whole presents a "mouth" shape with a corner missing.

[0078] In the conventional surgical procedure, the doctor needs to hold a rigid endoscope in one hand and an electrode in the other hand to perform the surgery, which requires a large space to meet the combined use of the mirror and the electrode. If the nasal cavity structure is extremely narrow, such as nasal septum deviation or nasal mucosa swelling, there will often be a phenomenon that the mirror and the electrode fight for space, making the operation of the doctors very inconvenient. Therefore, a narrow nasal cavity requires surgical instruments to be as few as possible.

[0079] Therefore, in this embodiment, please refer to Figure 6As shown, the rhinitis ablation electrode 10 may further include a camera 15. The camera 15 is disposed on the insulating seat 13, and the front end of the camera 15 extends out between the two electrode bodies. The front working surface and the front-facing working surface need to fall within the field of view of the camera 15. The front working surface and the front-facing working surface may fall within the field of view of the camera 15 simultaneously, or by adjusting the direction of the camera 15, at least one of them may fall within the field of view of the camera 15 at a certain moment. Of course, in other embodiments, it is also possible that the rhinitis ablation electrode 10 does not include the camera 15.

[0080] The style of the camera 15 is not limited. Referring to the prior art, in this embodiment, the camera 15 is an endoscope module with a light 150. The camera 15 is composed of an endoscope module 150, an LED light 151, and a connection line 152. Among them, the LED light 151 is the light source, which can illuminate the surgical area. The connection line 152 may be a part of the cable 110, or the two may be independently arranged and electrically connected. The endoscope module 150 captures an image through the lens, converts the optical signal into an electrical signal, then performs digital processing through the image sensor, and finally displays the processed image on the screen through the control unit to help the doctor accurately judge the condition, find a suitable surgical site, and observe the progress of the operation.

[0081] Without increasing the external dimensions of the rhinitis ablation electrode 10, integrating the camera 15 into the electrode not only increases the operating space of the doctor in the nasal cavity, but also enables the doctor to operate with one hand, freeing up one hand for other things.

[0082] The connection method between the camera 15 and the insulating seat 13 is not limited. For example, the two are fixedly connected or integrally formed. The position of the camera 15 on the insulating seat 13 may remain fixed or may slide back and forth relative to the insulating seat 13. If the camera 15 can slide back and forth on the insulating seat 13, the field of view of the camera 15 can be changed to facilitate the doctor to adjust the field of view in a timely manner.

[0083] In this embodiment, the following solutions may be adopted but are not limited to: Please refer to Figure 7 As shown, the insulating seat 13 is provided with an installation hole 132. The installation hole 132 penetrates the insulating seat 13 in the front-rear direction. The front end of the installation hole 132 is located at the front surface 131. The camera 15 is inserted into the installation hole 132, and the front end of the camera 15 extends out from the front end of the installation hole 132. The cable 110 of the camera 15 is inserted into the knife head body 12. With such a setting, the camera 15, the working electrode 140, and the return electrode 141 are all disposed on the insulating member. The camera 15 is located between the working electrode 140 and the return electrode 141, which is convenient for observing the nasal cavity structure, finding a suitable surgical site, and observing the progress of the operation.

[0084] In addition, to achieve the two functions of suction and irrigation, conventional electrodes generally need to be equipped with two holes at the top of the electrode. One hole is connected to a suction tube to achieve the suction function, and the other hole is connected to an irrigation tube to achieve the irrigation function. In this way, the size of the electrode tip will be relatively large, making the already narrow nasal cavity space even narrower and reducing the flexibility of the instrument, which will affect the operability of the surgery and the actual use effect.

[0085] Therefore, in this embodiment, the rhinitis ablation electrode 10 may further include a flushing and suction assembly 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 assembly 16, but it can also be used in cooperation with an independent flushing and suction assembly 16.

[0086] Generally speaking, the flushing and suction assembly 16 can cooperate with a syringe 163. Of course, it can also cooperate with other water supply assemblies. The "syringe 163" is introduced here for convenience of description. The syringe 163 can be regarded as a part of the flushing and suction assembly 16 or not, and it only cooperates during use.

[0087] Please refer to Figure 9 、 Figure 10 As shown, the flushing and suction assembly 16 includes a flushing tube 160, a suction tube 161, and a three-way joint 162. The three-way joint 162 is disposed between the flushing tube 160 and the suction tube 161.

[0088] Please refer to Figure 3 、 Figure 4 、 Figure 6 As shown, the insulating member is provided with a suction and flushing hole 133. The size, position, etc. of the suction and flushing hole 133 are not limited. The flushing tube 160 passes through the cutter head body 12 and through the suction and flushing hole 133. The front end of the flushing tube 160 extends from the front end of the insulating seat 13. The front end of the flushing tube 160 can be located between the working electrode 140 and the return electrode 141; the rear end of the suction tube 161 is communicated with a suction device. Of course, in other embodiments, it is also possible that the insulating member is not provided with the suction and flushing hole 133. For example, the front end of the flushing tube 160 extends from one side of the insulating seat 13 to between the working electrode 140 and the return electrode 141; and the front end of the flushing tube 160 may not be located between the working electrode 140 and the return electrode 141. For example, the front end of the flushing tube 160 is located behind or on one side of the working electrode 140 or the return electrode 141, etc.

[0089] The three-way joint 162 includes a main body and a valve switch. A flow channel is provided in the main body, and the valve switch is used to control the opening and closing of different flow channels in the main body.

[0090] The main body adopts the structure of a three-way pipe. The main body has three interfaces, namely port A 164, port B 165 and port C 166. Among them, port A 164 is matched with the flushing suction pipe 160 and the two are connected. Port B 165 is matched with the suction pipe 161 and the two are connected. Port C 166 is used to be connected with a syringe 163, etc. Of course, port C 166 and the syringe 163 can also be indirectly connected through a flushing pipe.

[0091] The connection methods between port A 164 and the flushing suction pipe 160, between port B 165 and the suction pipe 161, and between port C 166 and the syringe 163 are not limited. They can be integrally formed, or can be connected by plugging, threaded connection, etc.

[0092] 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 arranged 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. When the flushing and suction section and the flushing section are connected, a flushing channel is formed. When the valve switch rotates, it can selectively connect the suction channel and the flushing channel, that is, there can be two states: the flushing and suction section is connected to the suction section and the flushing and suction section is disconnected from the flushing section; the flushing and suction section is connected to the flushing section and the flushing and suction section is disconnected from the suction section.

[0093] The style of the valve switch is not limited. It can be a screwing type, a pressing type, etc. The three-way joint 162 selectively connects the flushing suction pipe 160 and the suction pipe 161 or connects the flushing suction pipe 160 and the syringe 163. Specifically: please refer to Figure 9 As shown, when the valve switch is in the first position, port A 164 is connected to port B 165, that is, the flushing suction pipe 160 is connected to the suction pipe 161. At this time, port A 164 and port C 166 are closed, that is, the flushing suction pipe 160 and the syringe 163 are not connected. Under the action of the suction device, the nosebleed, nasal mucus or waste physiological saline, etc. in the surgical area can be sucked out to keep the surgical area clean. In this state, the syringe 163 can also not be installed; please refer to Figure 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 suction pipe 160 is connected to the syringe 163. At this time, port A 164 and port B 165 are closed, that is, the flushing suction pipe 160 and the suction pipe 161 are not connected. The syringe 163 can transport the physiological saline for flushing, etc. to the surgical area to flush the nasal cavity, prevent the camera 15 from fogging up and make the field of view clearer. Figure 9 and Figure 10 The arrow direction next to the flushing and suction component 16 in represents the flow direction of the physiological saline or waste liquid, etc. inside it.

[0094] Since the ablation treatment of rhinitis does not require the functions of suction and irrigation simultaneously, by improving the structure of the aspiration and irrigation assembly 16, the structure for realizing the suction function and the structure for realizing the irrigation function are integrated into one whole, with a slender shape, which can effectively save the operation space, especially in the narrow cavity of the nasal cavity, and the advantages are more obvious.

[0095] In addition, in some embodiments, in order to enable medical staff to more directly understand the state of the aspiration and irrigation 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 aspiration and irrigation section and the irrigation section are communicated; when the wrench is at the second stop point, the wrench extends along the axial direction of the irrigation section. At this time, the aspiration and irrigation section and the suction section are communicated. Of course, in other embodiments, other solutions can also be adopted. For example: when the wrench is at the first stop point, the aspiration and irrigation section and the irrigation section are communicated; when the wrench is at the second stop point, the aspiration and irrigation section and the suction section are communicated.

[0096] Moreover, marks such as "ON" and "OFF" can be set on the wrench so that medical staff can know which path the wrench is facing and whether that path is open or closed.

[0097] 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 cooperation relationship among the tool head body 12, the insulating seat 13, and the camera 15.

[0098] Please refer to Figures 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 of the insulating seat 13, on the left and right sides, etc. The camera 15 is embedded in the card slot 121, and the fixing method between the two is not limited. For example, it can be snap-connected or bonded. In this embodiment, insertion protrusions 122 are provided on both sides of the camera 15. The cross-section of the insertion protrusions 122 can be arc-shaped, triangular, rectangular, etc. Insertion chutes 123 are provided on both sides of the card slot 121. The shape of the insertion chutes 123 matches that of the insertion protrusions 122, and they can be the same or approximately the same. The insertion protrusions 122 are slidably embedded in the insertion chutes 123, and the insertion protrusions 122 can slide back and forth along the insertion chutes 123 to adjust the position of the camera 15.

[0099] A wire threading groove 120 is provided on one side of the tool head body 12. The wire threading groove 120 is recessed inward, and its shape is not limited. For example, its cross-section can be a superior arc, an inferior arc, a rectangle, etc. The cable 110 of the camera 15 is embedded in the wire threading groove 120, and the two can be snap-connected for convenient wire routing.

[0100] The above are only the preferred embodiments of the present invention and are 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 within the protection scope of the present invention.

Claims

1. A rhinitis ablation electrode, characterized in that, It includes a handle, a cutter head body, an insulating seat, and an electrode assembly connected in sequence; the front surface of the insulating seat gradually shrinks from the back to the front towards the back surface, forming a vacant area; the electrode assembly includes two electrode bodies arranged side by side, the electrode polarities of the electrode bodies are opposite, the electrode bodies are arranged in the insulating seat and extend towards 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 surface during operation; Each of the electrode bodies is wound into a ring by itself or forms a ring in cooperation with the insulating seat, and the electrode body extends out from the front end of the insulating seat and bends to extend to the middle of the front surface; 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-rear direction, and the second section and the fourth section extend in the thickness direction of the insulating seat.

2. The rhinitis ablation electrode according to claim 1, wherein The front surface is in the shape of a slope or a step.

3. The rhinitis ablation electrode according to claim 1, wherein, The two electrode bodies are the same, and the electrode bodies are in the shape of filaments or sheets.

4. The rhinitis ablation electrode according to claim 1, wherein Viewed from the side, the electrode body protrudes from the insulating seat at the outermost side of the proximal end on the front surface.

5. The rhinitis ablation electrode according to claim 1, wherein It further includes a camera, the camera 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.

6. The rhinitis ablation electrode according to claim 5, characterized in that, The camera is slidably engaged with the insulating seat in the front-rear direction.

7. The rhinitis ablation electrode according to claim 5, wherein The insulating seat is provided with a mounting hole, the mounting hole penetrates through the insulating seat in the front-rear direction, and the camera is inserted into the mounting hole.

8. The rhinitis ablation electrode according to claim 5, characterized in that, A wire threading groove is provided on one side of the cutter head body, a clamping groove is provided on one side of the insulating seat, and the camera is embedded in the clamping groove.

9. The rhinitis ablation electrode according to claim 8, characterized in that, Insertion bosses are provided on both sides of the camera, and insertion chutes are provided on both sides of the clamping groove, and the insertion bosses are slidably embedded in the insertion chutes.

10. The rhinitis ablation electrode according to any one of claims 1-9, characterized in that It further includes a flushing and suction assembly, the flushing and suction assembly includes a flushing pipe, a suction pipe, and a three-way joint, the three-way joint is arranged between the flushing pipe and the suction pipe and can be used in cooperation with a syringe, and the three-way joint selectively connects the flushing pipe and the suction pipe or connects the flushing pipe and the syringe.

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