Treatment head and luminal treatment system

Abstract

The present application discloses a treatment head and a luminal treatment system for use in luminal treatment, the treatment head being adapted to be removably connected to a handle, the treatment head including a flexible housing and a support assembly, the flexible housing being inflatable with air, and the support assembly being mounted within the flexible housing to support the flexible housing.

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims the priority of a Chinese patent application with the application number 202111280431.4, filed on October 29, 2021, and incorporates all of its contents herein by reference.

[0002] This application relates to the technical field of medical devices, and in particular, to a treatment head and a luminal treatment system.

Background Art

[0003] In related technologies, the support assembly of a luminal treatment system is integrally formed with a handle, and a flexible housing is fitted onto the support assembly and adhered to the handle. Since the treatment head needs to be inserted into the lumen, it is a personal - use item. When the treatment course is completed, although there is no longer a need to use the luminal treatment system, it cannot be used by others, so the luminal treatment system is left unused and wasted.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The main object of this application is to propose a treatment head and a luminal treatment system aimed at saving waste.

Means for Solving the Problems

[0005] To achieve the above object, the treatment head proposed by this application is used for luminal treatment and is used to be removably connected to a handle, and includes a flexible housing and a support assembly. The flexible housing is inflatable by air injection, and the support assembly is mounted within the flexible housing to support the flexible housing.

[0006] In one embodiment, a fastening block is provided on one of the treatment head and the handle, and a fastening groove is provided on the other.

[0007] In one embodiment, the handle is provided with a mounting groove for at least partially accommodating the treatment head, the groove wall of the mounting groove is provided with a fastening groove, the treatment head is provided with a fastening block, the fastening groove includes a passage groove for inserting the fastening block and a holding groove extending in the circumferential direction of the handle, and the passage groove communicates with the holding groove.

[0008] In one embodiment, the treatment head includes a rigid circuit board and a plurality of electrode sheets. The rigid circuit board is attached to the flexible housing to support the flexible housing. The electrode sheets are attached to the rigid circuit board and exposed on the outer peripheral wall of the flexible housing. The plurality of electrode sheets are arranged at intervals in the length direction of the flexible housing.

[0009] In one embodiment, an air injection chamber is provided in the flexible housing. The support assembly includes a support portion that extends into the air injection chamber to support the flexible housing.

[0010] In one embodiment, the treatment head further includes a mounting seat attached to the flexible housing. The mounting seat is provided with an air injection hole communicating with the air injection chamber. The handle is provided with a contact post inserted into the air injection hole, and the contact post is provided with an air inlet.

[0011] In one embodiment, the treatment head further includes a sealing gasket attached to the mounting seat. The sealing gasket includes a gasket body and a sealing ring. The gasket body is located on one surface of the mounting seat away from the handle, and the sealing ring extends along the hole wall surface of the air injection hole and is exposed in the air injection hole.

[0012] In one embodiment, the sealing ring is provided with an outward fold.

[0013] In one embodiment, the treatment head further includes a sealing member attached to the support assembly. The sealing member elastically abuts against the sealing gasket to seal the air injection hole. When the abutting post is inserted into the air injection hole, the abutting post abuts against the sealing member to open the air injection hole.

[0014] In one embodiment, an end opening communicating with the air injection chamber is provided in the flexible housing. An extending ring is provided at the end opening, and a receiving groove for receiving the extending ring is provided in the mounting seat. An annular protrusion used for abutting against the flexible housing is provided at the groove periphery of the receiving groove.

[0015] In one embodiment, there are a plurality of the annular protrusions, and the plurality of annular protrusions are arranged at intervals on the groove periphery of the mounting seat.

[0016] In one embodiment, the treatment head further includes a mounting member attached to the end opening. The mounting member includes an extending cylinder used for connecting to the mounting seat and a fitting ring fitted into the flexible housing.

[0017] In one embodiment, the support assembly further includes a base attached to the mounting seat. The support portion is provided on the base, and the mounting member is engaged with the mounting seat through the base.

[0018] In one embodiment, a fastening hook is provided on one of the mounting member and the mounting seat, and a fastening member fitted with the fastening hook is provided on the other.

[0019] In one embodiment, the treatment head further includes an adapter plate. The adapter plate is attached to the support assembly, electrically connected to the rigid circuit board, and used for being electrically connected to the handle.

[0020] This application further proposes a luminal treatment system, which includes the above-mentioned treatment head and a handle, wherein the handle and the treatment head are removably connected, and the treatment head includes a flexible housing and a support assembly. The flexible housing is inflatable by air injection, and the support assembly is installed in the flexible housing to support the flexible housing.

[0021] In one embodiment, the handle is provided with a position-limiting post that can protrude into the treatment head and is restricted from withdrawing from the treatment head. The treatment head is provided with a position-limiting hole for accommodating the position-limiting post, and the position-limiting hole is offset from the rotation axis of the handle.

[0022] (Beneficial effects) The flexible housing of the technical solution of this application is inflatable by air injection. By removably connecting the treatment head and the handle, after the treatment head is damaged or its service life is exhausted, only a new treatment head needs to be replaced. The handle can be fully utilized, waste of materials is saved, and the service life of the product is improved. On the other hand, when a hospital is carrying out a treatment project, the hospital provides the handle, and each user can purchase their own treatment head. That is, it is not necessary to equip each treatment head with one handle, and multiple treatment heads can share the same handle, so that the treatment cost of the user can be saved and the situation of the handle being left unused can be avoided. In addition, different types of treatment heads can be replaced, and the application range of the product is wide, so that good adhesion between the electrode sheet of the treatment head and the treatment area can be guaranteed, and the treatment effect can be improved and the risk of burns can be reduced.

[0023] To more clearly illustrate the embodiments of this application and the technical solutions of the prior art, the following briefly describes the attached drawings required for the description of the embodiments or the prior art. It is obvious that the attached drawings in the following description are only some embodiments of this application. For those skilled in the art, other attached drawings can be obtained based on the structures shown in these attached drawings without creative labor.

[0024] To more clearly explain the embodiments of the present application and the technical solutions of the prior art, the attached drawings required for the description of the embodiments or the prior art will be briefly described below. It is obvious that the attached drawings in the following description are only a part of the embodiments of the present application, and those skilled in the art can obtain other attached drawings based on the structures shown in these attached drawings without creative labor.

Brief Description of the Drawings

[0025]

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Mode for Carrying Out the Invention

[0026] With reference to the accompanying drawings, the realization, functional features and advantages of the object of the present application will be further described in combination with the embodiments.

[0027] Hereinafter, in combination with the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. It is obvious that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative labor belong to the scope protected by the present application.

[0028] In addition, when there is a directional indication (for example, up, down, left, right, front, back...) in the embodiments of the present application, the directional indication is only used to explain the relative positional relationship, movement status, etc. between each component in a specific posture (refer to the figure). When the specific posture changes, the directional indication also changes accordingly.

[0029] In addition, when it comes to descriptions such as "first" and "second" in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for the purpose of explanation, and should not be understood as presenting or implying their relative importance, or implicitly specifying the number of technical features presented. Therefore, the features limited to "No. 1", "No. 2" may explicitly or implicitly include at least one of such features. Also, "and / or" appearing throughout the text means including three parallel cases. Taking "A and / or B" as an example, it includes case A, or case B, or the case where both A and B are satisfied simultaneously. Also, as long as it can be realized by those skilled in the art, the technical solutions of each embodiment can be combined with each other. If there is a contradiction or it cannot be realized in the combination of technical solutions, it should be understood that such a combination of technical solutions does not exist and is not within the scope that the present application seeks to protect.

[0030] The present application proposes a luminal treatment system.

[0031] In an embodiment of the present application, referring to FIGS. 1 to 2 and FIG. 12, this luminal treatment system 1 includes a handle 20 and a treatment head 10. The treatment head 10 includes a flexible housing 100 that can be inflated by air injection and a support assembly 600 mounted within the flexible housing 100. Here, the treatment head 10 is removably connected to the handle 20.

[0032] The flexible housing 100 of the technical solution of the present application can be inflated by air injection. By removably connecting the treatment head 10 and the handle 20, when the treatment head 10 is damaged, only the new treatment head 10 needs to be replaced, the handle 20 can be fully utilized, waste of materials is saved, and the service life of the product is improved. On the other hand, each individual user can use one treatment head 10 alone. That is, it is not necessary to provide one handle 20 for each treatment head 10, and a plurality of treatment heads 10 can share the same handle 20, so that the treatment cost of the user can be saved and the situation where the handle 20 is left unused can be avoided.

[0033] Specifically, referring to FIGS. 2 to 3, this treatment head 10 includes a flexible housing 100 that is used to be inserted into the lumen for treatment. This flexible housing 100 may have a regular or irregular shape such as spherical, cylindrical, tubular, etc., or may be formed by combining a plurality of regular shapes. Referring to FIGS. 3 to 4, this flexible housing 100 extends in a straight line direction and has a first end 101 for connecting to the handle 20 and a second end 102 opposite to the first end 101. The flexible housing 100 is a flexible member, is gentle on the inner wall of the lumen, has a weak foreign body sensation, and is easily acceptable to the user. The material of this flexible housing 100 is various and may be silicone rubber, rubber, etc.

[0034] Referring to FIG. 3, this treatment head 10 further includes an electrode sheet 200. The electrode sheet 200 contacts the inner wall of the user's lumen by being exposed on the outer peripheral wall of the flexible housing 100 and performs treatments such as heating or electrical stimulation. This electrode sheet 200 may be provided to protrude from the surface of the flexible housing 100 so as to easily contact the inner wall of the lumen. Referring to FIGS. 2 to 3, to more easily achieve the purpose of treatment by attaching the electrode sheet 200 on the flexible housing 100 to the inner wall of the lumen, and to avoid affecting the treatment because the lumen inner diameter of some users is too large to attach the electrode sheet 200, the volume of the flexible housing 100 can be increased by inflating the flexible housing 100 with air injection.

[0035] There are various ways to achieve the expansion of the flexible housing 100. By injecting air into the flexible housing 100, the flexible housing 100 can be expanded and thinned. Referring to FIGS. 2 to 3, in one embodiment, the outer wall surface of the flexible housing 100 is provided with a pleat portion 110 such that the flexible housing 100 has a compressed state without air injection and an expanded state with air injection. Continuing to refer to FIGS. 2 and 3, in the compressed state, no air is injected into the flexible housing 100, the pleat portion 110 is in a contracted state, and since the overall volume of the flexible housing 100 is small, it is easy to insert this flexible housing 100 into the lumen, and the foreign body sensation of the user can be reduced. Then, by injecting air into the flexible housing 100, expanding the pleat portion 110, and bringing the flexible housing 100 into an expanded state, the electrode sheet 200 on the flexible housing 100 can be easily attached to the lumen inner wall.

[0036] Referring to FIG. 3, in one embodiment, the pleat portion 110 may include a plurality of concave grooves 111 formed on the outer wall surface of the flexible housing 100. In the state of expansion by air injection, the outer diameter of the flexible housing 100 increases, and the plurality of concave grooves 111 may extend in the length direction of the flexible housing 100 so that the volume increases uniformly. To sufficiently increase the volume of the flexible housing 100, referring to FIGS. 2 to 3, in one embodiment, the flexible housing 100 is provided with two pleat portions 110, and the two pleat portions 110 are respectively located on opposite sides of the flexible housing 100 and are joined at the second end portion 102 of the flexible housing 100, so that the overall volume of the flexible housing 100 can be increased uniformly, which is advantageous for the contact between the electrode sheet 200 and the lumen inner wall.

[0037] Referring to FIG. 3, there are a plurality of electrode sheets 200. By arranging the plurality of electrode sheets 200 at intervals in the longitudinal direction of the flexible housing 100, the treatment site of the treatment head 10 is increased. The electrode sheets 200 on the flexible housing 100 may each form a plurality of sets including the plurality of electrode sheets 200, and the plurality of sets of electrode sheets 200 may be arranged at intervals in the circumferential direction of the flexible housing 100. Referring to FIGS. 2 to 3, two sets of electrode sheets 200 are respectively formed on opposite sides of the flexible housing 100, and the fold 110 is located between the two sets of electrode sheets 200.

[0038] Referring to FIGS. 4 to 5 and FIG. 7, this treatment head 10 further includes a rigid circuit board 300. The rigid circuit board 300 is attached to the flexible housing 100 and functions to support the flexible housing 100 so that the flexible housing 100 can maintain its shape, and to increase the rigidity of the flexible housing 100 so that the flexible housing 100 can be easily pushed into the receiving lumen. The rigid circuit board 300 may be attached inside the flexible housing 100 without being exposed on the chamber wall surface of the air injection chamber 100a of the flexible housing 100, may be attached inside the flexible housing 100 flush with the chamber wall surface of the air injection chamber 100a of the flexible housing 100, or may be attached on the inner wall surface of the flexible housing 100.

[0039] Referring to FIG. 7, the electrode sheet 200 is attached to the rigid circuit board 300, and the rigid circuit board 300 supports the electrode sheet 200. When the flexible housing 100 is in a compressed state, the electrode sheet 200 is outside the rigid circuit board 300 so that the electrode sheet 200 does not dent into the flexible housing 100. When the flexible housing 100 is in an inflated state, the gas in the air injection chamber 100a of the flexible housing 100 applies an outward pressing force to the rigid circuit board 300, and due to this pressing force, the rigid circuit board 300 abuts against the electrode sheet 200 outwardly, so that the electrode sheet 200 can easily contact the inner wall of the lumen.

[0040] Referring to FIGS. 4 and 7, in one embodiment, this rigid circuit board 300 extends in the longitudinal direction of the flexible housing 100 so as to easily support the flexible housing 100 and the electrode sheet 200. These plurality of electrode sheets 200 may be attached to different rigid circuit boards 300 or may be attached to the same circuit board. Referring to FIG. 7, in one embodiment, the plurality of electrode sheets 200 may be attached to the same rigid circuit board 300. Thereby, the force received by the electrode sheet 200 on the same rigid circuit board 300 can be made uniform, the contact between the electrode sheet 200 and the inner wall of the lumen can be facilitated, the therapeutic effect of the treatment head 10 can be guaranteed, the number of assembled parts can be reduced, the mounting work by the operator can be facilitated, and the assembly efficiency of the treatment head 10 can be improved.

[0041] Continuing to refer to FIG. 7, when a plurality of sets of electrode sheets 200 are provided on the flexible housing 100, each set of electrode sheets 200 may be attached to the same rigid circuit board 300 so that the support force and the contact force received by each set of electrode sheets 200 from the rigid circuit board 300 are substantially the same, and the contact between the electrode sheet 200 and the inner wall of the lumen is facilitated.

[0042] Referring to FIG. 7, in one embodiment, when two sets of electrode sheets 200 are provided on the flexible housing 100, two rigid circuit boards 300 corresponding to each set of electrode sheets 200 may be provided. To realize the treatment of both sides of the inner wall of the lumen facing each other by the treatment head 10 and to make the force received by the electrode sheets 200 on the flexible housing 100 uniform and facilitate the contact between the electrode sheets 200 and the inner wall of the lumen, these two rigid circuit boards 300 may be arranged oppositely on the flexible housing 100.

[0043] There are various methods for attaching this electrode sheet 200 to the rigid circuit board 300. Referring to FIGS. 7, 8 to 9, in one embodiment, a position limiting groove 200a is provided in this electrode sheet 200, and this rigid circuit board 300 is attached to the position limiting groove 200a.

[0044] Specifically, referring to FIGS. 7 and 9, two pressure-receiving portions 210 project from one surface of the electrode sheet 200 facing the air injection chamber 100a of the flexible housing 100 with a space therebetween, and a position-limiting groove 200a for accommodating the rigid circuit board 300 is formed between the two pressure-receiving portions 210. In this way, the electrode sheet 200 is attached to the rigid circuit board 300 by this position-limiting groove 200a, the rigid circuit board 300 is attached to the flexible housing 100, and the pressure-receiving portion 210 functions to limit and position the position of the electrode sheet 200 so that the electrode sheet 200 does not rotate.

[0045] Referring to FIGS. 7 and 9, in one embodiment, this rigid circuit board 300 may be attached to the groove bottom of the position-limiting groove 200a. A connection portion 221 is provided at the groove bottom of the position-limiting groove 200a, and the treatment head 10 may further include a connection member 222. By connecting the connection member 222 through the rigid circuit board 300 to the connection portion 221, the attachment of the rigid circuit board 300 and the electrode sheet 200 is realized. There are multiple connection methods between this connection member 222 and the connection portion 221. Referring to FIG. 9, this connection portion 221 projects from the groove bottom of the position-limiting groove 200a, a screw hole is provided in the connection portion 221, a male screw is provided in the connection member 222, and by screwing the connection member 222 and the connection portion 221 together, the electrode sheet 200 is attached to the rigid circuit board 300. In addition, in order to improve the connection stability of the connection portion 221, the connection portion 221 may be integrally formed with the electrode sheet 200, and this connection member 222 may be a screw.

[0046] To avoid the rigid circuit board 300 being attached in the reverse direction, referring to FIG. 9, in one embodiment, two first positioning posts 230 are provided diagonally at the groove bottom of the position-limiting groove 200a. Referring to FIG. 24, the rigid circuit board 300 is provided with positioning holes 300a that match the first positioning posts 230. By inserting the first positioning posts 230 into the positioning holes 300a, the rigid circuit board 300 is fitted with the electrode sheet 200 according to a certain attachment direction, preventing the incorrect insertion of the rigid circuit board 300, avoiding the operator's backtracking, and improving the assembly efficiency of the product.

[0047] Referring to FIGS. 24 to 25 and FIG. 9, in one embodiment, a temperature sensor 930 is attached to one surface of the rigid circuit board 300 facing the groove bottom of the position limiting groove 200a of the electrode sheet 200, and a retraction groove 200b for accommodating the temperature sensor 930 is further provided at the groove bottom of the position limiting groove 200a. In order to avoid damage to the temperature sensor 930 due to rigid contact between the temperature sensor 930 and the electrode sheet 200, a thermally conductive silicone rubber may be provided in the retraction groove 200b. The temperature sensor 930 functions to protect the temperature sensor 930 by elastically contacting the silicone rubber. At the same time, the silicone rubber timely adjusts the temperature of the electrode sheet 200, and in order to avoid the temperature of the electrode sheet 200 being too high or too low, transfers the heat of the electrode sheet 200 to the temperature sensor 930, enabling the temperature sensor 930 to recognize and sense it.

[0048] The electrode sheet 200 is electrically connected to the rigid circuit board 300. Referring to FIGS. 4 and 7, in one embodiment, the treatment head 10 further includes a first flexible circuit board 820 provided with a plurality of signal lines, and each signal line is connected to the rigid circuit board 300. Referring to FIG. 7, the first flexible circuit board 820 is attached to the rigid circuit board 300. By arranging the plurality of signal lines on the first flexible circuit board 820, the entanglement of the plurality of signal lines is avoided, and the tidiness of the product is enhanced. The first flexible circuit board 820 may be attached to one surface of the rigid circuit board 300 away from the electrode sheet 200, or may be attached to one surface of the rigid circuit board 300 facing the electrode sheet 200. Also, by connecting the first flexible circuit board 820 to other elements, the assembly efficiency of the treatment head 10 can be improved.

[0049] To avoid water leakage and air leakage from the flexible housing 100, referring to FIGS. 4 and 7, to ensure the sealing performance of the flexible housing 100, the flexible housing 100 is made by injection molding of liquid silicone rubber, and the rigid circuit board 300 is attached to the flexible housing 100 and forms part of the housing wall of the flexible housing 100. Specifically, in the molding process of the flexible housing 100, the electrode sheet 200 and the rigid circuit board 300 are positioned in the mold as a whole, the electrode sheet 200 is pressed by pressing the mold, and the liquid silicone rubber is injected into the mold by the pressing force to obtain an integrated structure of the electrode sheet 200, the rigid circuit board 300, and the flexible housing 100. Note that by integrally injection molding the electrode sheet 200, the rigid circuit board 300, and the flexible housing 100 with liquid silicone rubber, not only can the sealing performance of the flexible housing 100 be ensured, but also the stability of the connection between the electrode sheet 200 and the flexible housing 100 can be guaranteed, and it is possible to prevent the electrode 200 from falling off the flexible housing 100 due to the frequent expansion and contraction of the flexible housing 100. Before the rigid circuit board 300 is positioned in the mold, first, a plurality of electrode sheets 200, the rigid circuit board 300, and the first flexible circuit board 820 are assembled, and then injection molding with the flexible housing 100 and liquid silicone rubber may be performed to execute the assembly and processing of the flexible housing 100.

[0050] Referring to FIGS. 2 and 4, in one embodiment, the treatment head 10 further includes a mounting member 500 and a mounting seat 400. The flexible housing 100 is attached to the mounting seat 400 via the mounting member 500, and this mounting seat 400 is used to attach the flexible housing 100 to the handle by being connected to the handle 20.

[0051] Referring to FIG. 4, an end opening 100b communicating with the air injection end is provided at the first end 101 of the flexible housing 100, and the mounting member 500 is attached to the end opening 100b of the flexible housing 100. Specifically, the mounting member 500 includes an extending cylinder 510. The extending cylinder 510 extends at least partially into the air injection chamber 100a, and the other end protrudes at least partially from the end opening 100b. The extending cylinder 510 of the portion protruding from the end opening 100b can be connected to the mounting seat 400.

[0052] Referring to FIGS. 4 and 6, this extending cylinder 510 is provided in a cylindrical shape and may be cylindrical or square cylindrical. Specifically, it may be provided according to the shape of the end opening 100b. This extending cylinder 510 may extend in the direction toward the second end 102 of the flexible housing 100. One end of the extending cylinder 510 extends into the air injection chamber 100a, and the other end protrudes from the end opening 100b of the flexible housing 100 so as to facilitate connecting the extending cylinder 510 and the mounting seat 400 to attach the flexible housing 100 to the mounting seat 400. Referring to FIG. 6, the extending cylinder 510 extends along the inner wall surface of the flexible housing 100, and the flexible housing 100 sandwiches the extending cylinder 510 to play a positioning role.

[0053] Continuing to refer to FIGS. 4 and 6, this mounting member 500 further includes a fitting ring 520 protruding from the side of the extending cylinder 510, and a fitting groove adapted to the fitting ring 520 is provided on the inner wall of the air injection chamber 100a. By fitting the fitting ring 520 into the fitting groove, the mounting member 500 can be easily attached to the end opening 100b of the flexible housing 100. Even if the second end 102 of the flexible housing 100 is deformed to expand, since the fitting ring 520 is fitted to the flexible housing 100, the mounting member 500 is not easily detached from the end opening 100b, and the connection between the flexible housing 100 and the mounting member 500 is stable, highly reliable, and highly practical.

[0054] To further improve the connection stability of the flexible housing 100, referring to FIG. 4, in one embodiment, the fold 110 on the flexible housing 100 extends from the second end 102 to the front side of the first end 101. That is, since the fold 110 is not provided at the first end 101, when the flexible housing 100 is in an inflated state, the width by which the first end 101 expands and becomes larger is reduced, making it less likely for the fitting ring 520 to fall out of the fitting groove, and further improving the connection stability between the mounting member 500 and the flexible housing 100.

[0055] Note that the fitting ring 520 and the extending cylinder 510 may be provided integrally or separately. Referring to FIG. 10, in one embodiment, since the fitting ring 520 and the extending cylinder 510 are provided integrally, the connection stability of the mounting member 500 itself is improved. The width of the fitting ring 520 in the extending cylinder 510 may be the same or different, and specifically, it can be set according to the actual situation of the flexible housing 100.

[0056] Referring to FIGS. 4 and 10, in one embodiment, since the fitting ring 520 extends in the thickness direction of the flexible housing 100, it can be directly and more deeply fitted into the flexible housing 100, making it more difficult for the mounting member 500 to be pulled out from the end opening 100b, and improving the connection stability between the mounting member 500 and the flexible housing 100. By using the mounting member 500 as a rigid member and the mounting seat 400 as a rigid member, the two rigid members can be rigidly connected, improving the reliability of the connection.

[0057] During treatment, it is necessary to support the treatment head 10 by hand. Otherwise, the treatment head 10 is likely to come out of the lumen, affecting the treatment effect. To solve this problem, referring to FIGS. 3 to 4, in one embodiment, a retaining portion 120 having an outer diameter smaller than the outer diameter of the second end 102 is provided between the first end 101 and the second end 102, near the first end 101. During use, the opening of the lumen clamps the retaining portion 120 to perform the retaining function.

[0058] Referring to FIG. 4, this anti-disengagement portion 120 may be formed to incline inward along the axis of the flexible housing 100 from the second end portion 102 to the first end portion 101, or a tapered portion that tapers in the direction from the second end portion 102 to the first end portion 101 may be provided on the flexible housing, or an anti-disengagement groove for one turn may be provided between the first end portion 101 and the second end portion 102.

[0059] With reference to FIGS. 3 to 4, to guide the air injection into the flexible housing 100 to some extent and prevent the flexible housing 100 from taking an irregular shape in the air injection state, in one embodiment, the thickness of the portion of the flexible housing provided with the electrode sheet 200 is larger than the thickness of the pleat portion 110, that is, the thickness of the pleat portion 110 is smaller than the thickness of the flexible housing 100 at the portion where the electrode sheet 200 is provided. Therefore, it is easier to lift the pleat portion 110 by air injection.

[0060] Referring to FIG. 4, in one embodiment, the anti-disengagement portion 120 includes an extending portion 121 and a clamping portion 122. The extending portion 121 is closer to the electrode sheet 200 than the clamping portion 122. The thickness of this anti-disengagement portion 120 gradually decreases from the extending portion 121 toward the clamping portion 122, so that the flexible housing 100 expands uniformly during air injection, and a column having a uniform outer diameter can be formed so that the treatment region of the treatment head 10 (the region where the electrode sheet 200 is located) is in close contact with the lumen surface. If the anti-disengagement portion 120 is too thick, the expansion of the flexible housing 100 at one end (the first end portion 101) close to the anti-disengagement portion is hindered, and an inverse-tapered column is formed. Referring to FIG. 4, in one embodiment, the thickness of the first end portion 101 of the flexible housing 100 gradually increases from the clamping portion 122 toward the first end portion 101. Therefore, when air is injected, the first end portion 101 maintains its original shape without being deformed, thereby preventing the attachment member 500 from coming out of the end opening 100b.

[0061] In order to facilitate the deformation of the flexible housing 100, in one embodiment, the thickness of the clamping portion 122 may be the same as the thickness of the fold portion 110. Referring to FIG. 4, in one embodiment, since the thickness of the flexible housing 100 in the portion where the electrode sheet 200 is provided is uniform, the flexible housing 100 expands more uniformly when air is injected.

[0062] Furthermore, in order to prevent the mounting member 500 from falling off the flexible housing 100, referring to FIGS. 10 to 11, in one embodiment, a strip-shaped protrusion 521 extending in the circumferential direction of the extension cylinder 510 is provided on the annular surface of the fitting ring 520.

[0063] Referring to FIGS. 22 to 23, the strip-shaped protrusion 521 is provided on one surface of the fitting ring 520 that opens toward the end opening 100b. By providing the strip-shaped protrusion 521 on the annular surface of the fitting ring 520, the flexible housing 100 presses and deforms the strip-shaped protrusion 521, and fits the strip-shaped protrusion 521 into the groove wall of the fitting groove. When the mounting member 500 receives an outward tensile force, since the strip-shaped protrusion 521 abuts against the flexible housing 100, the frictional force between the mounting member 500 and the flexible housing 100 increases, making it difficult for the fitting ring 520 to come off, and improving the stability of the connection between the mounting member 500 and the flexible housing 100.

[0064] Referring to FIGS. 10 to 11, there may be a plurality of such strip-shaped protrusions 521. The plurality of strip-shaped protrusions 521 are arranged at intervals in the circumferential direction of the extension cylinder 510, and / or the plurality of strip-shaped protrusions 521 are arranged radially on the fitting ring 520, thereby further improving the stability of the connection between the mounting member 500 and the flexible housing 100. Different from the above embodiment, referring to FIGS. 26 to 28, in one embodiment, no strip-shaped protrusion 521 is provided on the annular surface of the fitting ring 520.

[0065] Referring to FIGS. 15 to 16 and FIG. 23, an annular protrusion 401 may be provided on one surface of the mounting seat 400 facing the flexible housing 100. When the mounting seat 400 is attached to the flexible housing 100, the flexible housing 100 presses and deforms the annular protrusion 401, thereby fitting the annular protrusion 401 into the flexible housing 100. Further, when the mounting seat 400 is engaged with the mounting member 500 and the annular protrusion 401 abuts against the flexible housing 100, the flexible housing 100 is clamped between the mounting member 500 and the mounting seat 400, and the annular protrusion 401 functions to strengthen the clamping and sealing.

[0066] Since the fitting ring 520 protrudes from the cylindrical wall of the extending cylinder 510, in order to increase the strength of the fitting ring 520, referring to FIG. 10, in one embodiment, the mounting member 500 is provided with a reinforcing rib 530 located on the outer wall surface of the extending cylinder 510 and connected to the fitting ring 520.

[0067] This reinforcing rib 530 is provided on one surface of the fitting ring 520 away from the end opening 100b. By connecting the extending cylinder 510 and the fitting ring 520 so that the fitting ring 520 is not easily broken by a collision, the strength of the fitting ring 520 is improved, and thus the service life of the mounting member 500 is extended. Continuing to refer to FIG. 10, there may be a plurality of these reinforcing ribs 530, and by arranging the plurality of reinforcing ribs 530 at intervals in the circumferential direction of the extending cylinder 510, the strength of the fitting ring 520 as a whole is increased.

[0068] Referring to FIG. 10, in one embodiment, these plurality of reinforcing ribs 530 are arranged at unequal intervals in the circumferential direction of the extending cylinder 510. Referring to FIG. 3, a positioning block 130 is provided on the inner wall surface of the first end portion 101 of the flexible housing 100, and a positioning groove is formed between two reinforcing ribs 530. Since the plurality of reinforcing ribs 530 are not arranged at equal intervals on the extending cylinder portion 510, the fitting of the positioning block 130 and the positioning groove prevents the misinsertion of the mounting member 500 so as to limit the mounting position of the support assembly 600 within the flexible housing 100.

[0069] Referring to FIG. 26, in one embodiment, guide ribs 540 are provided on the inner wall surface of the extension cylinder 510. The guide ribs 540 extend in the length direction of the extension cylinder 510, function to guide a support assembly 600 that is inserted into the anti-misinsertion port 510a and slides along the guide ribs 540, while reducing the wobbling of the support assembly 600 on the mounting member 500 and reinforcing the structural strength of the mounting member 500.

[0070] Referring to FIGS. 3 and 12, in one embodiment, the support assembly 600 of the treatment head 10 is used to support the flexible housing 100 so that the flexible housing 100 can be smoothly inserted into the lumen while maintaining a certain shape. Referring to FIGS. 12 - 13 and FIG. 29, this support assembly 600 is provided in a long strip shape to better support the flexible housing 100. Referring to FIGS. 4 and 10, the extension cylinder 510 is provided with an anti-misinsertion port 510a that communicates with the air injection chamber 100a, and the anti-misinsertion port 510a is used for inserting the support assembly 600. By providing the anti-misinsertion port 510a on the extension cylinder 510, the support assembly 600 enters the air injection chamber 100a from the anti-misinsertion port 510a in a certain orientation, avoiding the situation where the support assembly 600 is mounted in the reverse direction, which may cause the operator to have to reverse the operation and affect the product quality.

[0071] That is, the reinforcing ribs 530 on the extension cylinder 510 and the positioning blocks 130 on the inner wall of the flexible housing 100 prevent misinsertion when the mounting member 500 is mounted. And the mounting member 500 is provided with an anti-misinsertion port 510a to limit the insertion position of the support assembly 600 so that the support assembly 600 is mounted in the flexible housing 100 at a certain angle.

[0072] Furthermore, referring to FIGS. 10 - 11, in one embodiment, the anti-misinsertion port 510a is a cross groove, including an intersecting first groove opening 510b and a second groove opening 510c, and the width of the first groove opening 510b is larger than the width of the second groove opening 510c.

[0073] Referring to FIG. 11, since the outer diameter of this support assembly 600 is smaller than the width of the first groove opening 510b and larger than the width of the second groove opening 510c, when assembling this treatment head 10, the support assembly 600 can enter into the air injection chamber 100a from the first groove opening 510b, realizing the positioning of the support assembly 600. When the support assembly 600 enters towards the second groove opening 510c, since the outer diameter of the support assembly 600 is larger than the width of the second groove opening 510c and the support assembly 600 cannot pass through the second groove opening 510c, the operator can discover that it is installed in the reverse direction and can timely adjust the orientation of the support assembly 600, avoiding subsequent rework and improving the working efficiency of product assembly.

[0074] There are various connection methods between this mounting member 500 and the mounting seat 400, which may be a detachable connection or a non-detachable connection. Referring to FIGS. 4 and 12, by detachably connecting the mounting member 500 and the mounting seat 400, the production process is simplified and the assembly work by the operator is facilitated.

[0075] In one embodiment, the mounting member 500 is engaged with the mounting seat 400. Specifically, referring to FIGS. 10 to 11, in one embodiment, at one end of the extending cylinder 510 near the fitting ring 520, a engaging hook 511 used to be engaged with the mounting seat 400 is provided. One end of this extending cylinder 510 located at the end opening 100b protrudes outward to form an engaging hook portion 511a, and by the engagement between the engaging hook 511 and the mounting seat 400, the connection between the mounting member 500 and the mounting seat 400 is realized. Also, referring to FIGS. 22 to 23, when the mounting member 500 and the mounting seat 400 are engaged, the fitting ring 520 and the mounting seat 400 sandwich the first end portion 101 of the flexible housing 100, functioning to seal and avoiding liquid from entering into the flexible housing 100 from the gap between the end of the first end portion 101 and the mounting seat 400.

[0076] Referring to FIGS. 12 to 13, the mounting seat 400 is provided with a fastening member 403 that fits with the fastening hook 511. The fastening hook 511 can be of various types. By the fastening hook 511 snap-fitting onto the fastening member 403, the mounting member 500 and the mounting seat 400 can be quickly connected, improving the assembly efficiency.

[0077] This fastening member 403 may be located on the outer wall surface of the mounting seat 400 or on the inner wall surface of the mounting seat 400. Referring to FIGS. 13, 15 to 16, the mounting seat 400 is provided with a receiving groove 400b at one end facing the flexible housing 100, and the fastening member 403 is provided on the groove wall of the receiving groove 400b.

[0078] Referring to FIGS. 21 to 22, the first end 101 of the flexible housing 100 is inserted into the receiving groove 400b to protect the mounting member 500 so that the connection part between the mounting member 500 and the mounting seat 400 does not break, and the stability of the connection between the mounting member 500 and the mounting seat 400 can be improved. By locking the fastening hook 511 of the mounting member 500 to the fastening member 403 on the groove wall of the receiving groove 400b, the flexible housing 100 is attached to the mounting member 500.

[0079] Referring to FIG. 15, the mounting seat 400 is provided with an air injection hole 400a that communicates with the air injection chamber 100a. Thereby, after the mounting seat 400 and the handle 20 are connected, the air pump in the handle 20 injects air into the flexible housing 100 through this air injection hole 400a for treating the user.

[0080] After the treatment course is completed, it is necessary to clean the treatment head 10. When cleaning, remove the treatment head 10 from the handle 20. In order to prevent liquid from entering the air injection chamber 100a from the air injection hole 400a of the mounting seat 400 during cleaning, in one embodiment, referring to FIGS. 13 and 22, the treatment head 10 further includes a sealing gasket 730 mounted inside the mounting seat 400. The treatment head 10 further includes a sealing member 710, and the sealing member 710 closes the air injection hole 400a by elastically abutting against the sealing gasket 730.

[0081] Referring to FIGS. 22, 36 to 37, the sealing gasket 730 is located on one side of the mounting seat 400 away from the handle 20 and is in close contact with the inner wall surface of the mounting seat 400 so that liquid does not penetrate between the mounting seat 400 and the sealing gasket 730. The sealing member 710 elastically abuts against the sealing gasket 730 and has a larger aperture than the aperture of the air injection hole 400a. Before the treatment head 10 is attached to the handle 20, the sealing member 710 closes the air injection hole 400a by elastic force to isolate the air injection chamber 100a from the external environment. Thereby, it is possible to prevent liquid from entering the air injection chamber 100a of the treatment head 1 during cleaning and avoid a short circuit of the internal circuit structure. On the other hand, when air is injected into the treatment head 10, the cooperation between the sealing member 710 and the sealing gasket 730 can avoid air leakage from the treatment head 10 and improve the airtightness of the treatment head 10.

[0082] Regarding this, referring to FIGS. 4 and 16 to 17, in one embodiment, the sealing gasket 730 is provided with a vent hole 730a facing the air injection hole 400a, and gas enters the gas-air injection chamber 100a through the air injection hole 400a and the vent hole 730a. Referring to FIGS. 13 and 16 to 17, the aperture diameter of the vent hole 730a is smaller than the aperture diameter of the air injection hole 400a, and even if the outer diameter of the sealing member 710 is larger than the aperture diameter of the vent hole 730a, the sealing member 710 elastically abuts against the sealing gasket 730, the sealing member 710 seals the vent hole 730a, and further seals the air injection hole 400a, realizing the sealing of the treatment head 10 and improving the sealing performance of the product. Referring to FIG. 22, when the sealing member 710 receives an external force, the sealing member 710 moves away from the air injection hole 400a, thereby opening the air injection hole 400a to send gas into the air injection chamber 100a. The sealing member 710 is located on one surface of the mounting seat 400 away from the handle 20, and by elastically abutting the sealing member 710 against the mounting seat 400, the sealing of the air injection hole 400a is realized, preventing small foreign objects from entering the air injection chamber 100a and prolonging the service life of the elements in the air injection chamber 100a.

[0083] There are various ways to elastically abut the sealing member 710 against the mounting seat 400. Specifically, referring to FIGS. 12 to 13 and FIG. 22, in one embodiment, the treatment head 10 further includes an elastic member 720 disposed between the sealing member 710 and the support assembly 600 so that the sealing member 710 abuts against the edge of the air injection port.

[0084] Referring to FIG. 22, the sealing member 710 may be connected to the support assembly 600 via an elastic member 720 located between the sealing member 710 and the support. When the support assembly 600 is attached to the mounting seat 400, the elastic piece 720 is in a compressed state and has a pressing force to restore from deformation, so that the sealing member 710 abuts against the periphery of the air injection hole 400a and seals the air injection hole 400a.

[0085] In order to facilitate the attachment of the elastic member 720 and improve the reliability of the contact of the sealing member 710, with reference to FIGS. 21 to 22, in one embodiment, the support assembly 600 is provided with a column 601 at one end facing the air injection hole 400a, the elastic member 720 is fitted around the outer periphery of the column 601, and the sealing member 710 is fitted around the outer periphery of the elastic member 720.

[0086] Referring to FIG. 22, the base 610 of this support assembly 600 is provided with a column 601 extending toward the air injection hole 400a. By fitting the elastic member 720 around the outer periphery of the column 601, the elastic piece 720 is positioned so that the sealing member 710 on the elastic piece 720 does not shift from the air injection hole 400a and the air injection hole 400a cannot be sealed. This sealing member 710 may be provided in a cylindrical shape, and a groove is formed at one end of the sealing member 710 facing the column 601. The sealing member 710 is attached by fitting it around the outer periphery of the elastic member 720. Note that this elastic member 720 may be a spring.

[0087] Referring to FIGS. 22 and 30, in one embodiment, the base 610 has a receiving groove 600a recessed on one surface facing the air injection hole 400a, the column 601 is provided at the groove bottom of the receiving groove 600a, and the receiving groove 600a is provided with a vent hole 600b communicating with the air injection chamber 100a.

[0088] Referring to FIGS. 22 and 30, by providing the receiving groove 600a in the base 610 of the support assembly 600, the connection between the mounting member 500 and the mounting seat 400 becomes easy without the volume of the base 610 becoming too large, and the length of the treatment head 10 does not become too large either. This air injection hole 400a may be provided at the groove bottom of the receiving groove 600a. When the sealing member 710 is subjected to an external force and moves away from the air injection hole, the gas enters the receiving groove 600a from the air injection hole 400a and reaches the air injection chamber 100a through the vent hole 600b of the receiving groove 600a.

[0089] When the sealing member 710 elastically returns to the mounting seat 400, or when the support assembly 600 is attached to the mounting seat 400, considering that the sealing member 710 may deviate from the air injection hole 400a, referring to FIGS. 20 and 22, in one embodiment, the sealing member 710 is provided with a positioning post 711 to be inserted into the air injection hole 400a.

[0090] Referring to FIGS. 21 and 22, by providing the positioning post 711 on the sealing member 710, during installation, first, the sealing member 710 is attached to the support assembly 600, and then the positioning post 711 is aligned with the air injection hole 400a, and the support assembly 600 can be fitted and attached to the mounting seat 400. By functioning such that this positioning post positions, when the support assembly 600 is attached to the mounting seat 400, it is not necessary to adapt to the fitting between the sealing member 710 and the mounting seat 400 in the support assembly 600, so the assembly efficiency of the treatment head 10 is improved. Also, during the elastic restoration of the sealing member 710, since the positioning post 711 functions to guide and position, the return of the sealing member 710 is smoothly performed, and the air injection hole 400a can be sealed.

[0091] Referring to FIGS. 20 and 22, a plurality of positioning posts 711 are provided, and a gap is formed between two positioning posts 711. The gas can flow out from the gap between the positioning posts 711 and enter into the accommodation groove 600a of the base 610 of the support assembly 600. Continuing to refer to FIG. 20, the plurality of positioning posts 711 may be arranged at intervals around the axis of the sealing member 710, and the ends of the positioning posts 711 are provided to be chamfered so as to facilitate the insertion of the positioning posts 711 into the air injection hole 400a of the mounting seat 400.

[0092] In order to improve the sealing performance of the treatment head 10 and reduce air leakage and water leakage, referring to FIGS. 13, 17, and 22, in one embodiment, the treatment head 10 further includes a sealing gasket 730. The sealing gasket 730 includes a gasket body 731, and the vent hole 730a is formed in the gasket body 731. The gasket body 731 is sandwiched between the support assembly 600 and the mounting seat 400. A sealing ring 732 is provided on the gasket body 731. The sealing ring 732 extends along the hole wall surface of the air injection hole 400a from the vent hole 730a and protrudes from the end surface of the mounting seat 400.

[0093] Referring to FIGS. 13, 18, and 22, by attaching the support assembly 600 to the mounting seat 400, the gasket body 731 can be attached to the inner wall of the mounting seat 400. A sealing ring 732 extending along the hole wall surface of the air injection hole 400a is provided on the gasket body 731. Gas can enter the accommodation groove 400b of the support assembly 600 along the sealing gasket 730, and it is avoided that gas or liquid enters between the sealing ring 732 and the mounting seat 400, improving the airtightness of the product.

[0094] Referring to FIGS. 14 and 22, in one embodiment, the mounting seat 400 is provided with a flange 410 at the periphery of the air injection hole 400a. The flange 410 is located on one surface of the mounting seat 400 away from the support assembly 600. The sealing ring 732 is provided with an outward fold-back 732a that is fitted into and exposed by the flange 410.

[0095] Referring to FIG. 14, the outward folding 732a is fitted into the protruding edge 410 of the mounting seat 400, exposed at the end of the mounting seat 400, facilitating the connection between the sealing gasket 730 and the mounting seat 400, and enabling the sealing gasket 730 to be engaged and fixed to the mounting seat 400. On the other hand, after the connection between the mounting seat 400 and the handle 20, the end of the sealing ring 732 functions to abut against the groove bottom of the mounting groove 20a of the handle 20 for sealing, preventing gas from flowing out through the gap between the mounting seat 400 and the handle 20, and thus improving the air leakage prevention performance of the product.

[0096] Referring to FIGS. 16 to 17 and FIG. 22, in one embodiment, the mounting seat 400 is provided with a sealing groove 400c for accommodating the gasket body 731. The sealing groove 400c can be adapted to the gasket body 731. By providing the sealing groove 400c at the groove bottom of the accommodating groove 400b and mounting the gasket body 731 in the sealing groove 400c, displacement of the sealing gasket 730 on the mounting seat 400 can be avoided, and the sealing performance of the product can be improved. Note that the shape of the gasket body 731 may be quadrilateral, pentagonal, or other regular or irregular shapes. The sealing groove 400c restricts the position of the gasket body 731 and prevents the gasket body 731 from rotating within the accommodating groove 400b. Referring to FIG. 17, in one embodiment, the gasket body 731 is further provided with a relief opening 731a for allowing the stud 420 to pass through, thereby further positioning the gasket body 731 and preventing the rotation of the gasket body 731.

[0097] In one embodiment, the treatment head 10 has a four-stage waterproof structure.

[0098] Specifically, referring to FIGS. 3, 4, and 22, an extending ring 140 is provided at the end opening of the flexible housing 100. By extending this extending ring into the receiving groove 400b of the mounting seat 400, a first-stage waterproof structure is formed, making it difficult for liquid to penetrate between the flexible housing 100 and the mounting seat 400. Referring to FIGS. 15, 22 to 23, an annular protrusion 401 is provided on the mounting seat 400. When the mounting seat 400 is attached to the flexible housing 100, the flexible housing 100 presses and deforms the annular protrusion 401, and by fitting the annular protrusion 401 into the flexible housing 100, a second-stage waterproof structure is formed, making it difficult for liquid to penetrate between the flexible housing 100 and the mounting seat 400.

[0099] Note that referring to FIGS. 27 to 28, in one embodiment, there are a plurality of annular protrusions 401 on the mounting seat 400, and the plurality of annular protrusions 401 are provided at intervals in the width direction of the mounting seat, further enhancing the waterproof effect.

[0100] Referring to FIGS. 20 and 22, the sealing member 710 elastically abuts against the periphery of the air injection hole 400a to seal the air injection hole 400a, thereby forming a third-stage waterproof structure and avoiding the intrusion of liquid from the air injection hole 400a into the treatment head 10. Referring to FIGS. 18 and 22, this sealing gasket 730 is mounted on the mounting seat 400 and includes a gasket body 731 and a sealing ring 732. The gasket body 731 is covered on the periphery of the air injection hole, and this sealing ring 732 extends along the hole wall surface of the air injection hole 400a. To avoid the intrusion of liquid from the mounting seat 400 and the handle 20 into the treatment head 10, an outward fold 732a exposed at the end of the mounting seat 400 is provided on the sealing ring 732, thereby forming a fourth-stage waterproof structure.

[0101] Referring to FIG. 13, in one embodiment, the support assembly 600 includes a base 610 and a support portion 620 attached to the base 610. The support portion 620 extends into the air injection chamber 100a of the flexible housing 100 and supports the flexible housing 100 to facilitate the insertion of the treatment head 10 into the lumen.

[0102] Referring to FIGS. 21-22, by attaching the base 610 of the support assembly 600 to the mounting seat 400, the support assembly 600 can be positioned so as to avoid wobbling within the air injection chamber 100a of the flexible housing 100 and affecting the use of the treatment head 10. At the same time, by connecting the mounting member 500 to the mounting seat 400 through the base 610, the flexible housing 100 and the mounting seat 400 are connected.

[0103] Referring to FIGS. 12-14, in one embodiment, the end of the support portion 620 is provided in an arc shape so as to conform to the shape of the treatment head 10. Therefore, when pressed, the support portion 620 is less likely to damage the flexible housing 100. Referring to FIGS. 12-13, in one embodiment, the outer diameter of the end of the support portion 620 is smaller than the outer diameter of the end of the support portion 620 near the base 610. That is, the size of one end of the support portion 620 near the base 610 is larger than the size of one end of the support portion 620 far from the base 610. Therefore, a space for allowing the fold 110 to pass through is left, facilitating assembly. On the other hand, there is a large space for attaching the adapter plate 810 at one end of the support portion 620 near the base 610, which can meet the actual needs.

[0104] In addition, in order to improve the structural stability of the support assembly 600, the support portion 620 and the base 610 may be integrally formed. Referring to FIG. 13, the support assembly 600 is provided with a relief opening 610a for allowing the engaging hook 511 to pass through, and this relief opening 610a may be an opening. Referring to FIGS. 29-30, in one embodiment, a reinforcing strip 622 extending in the circumferential direction of the support portion 620 is provided on the side wall of the support portion 620.

[0105] Referring to FIGS. 12 to 13, in one embodiment, by attaching the base 610 of the support assembly 600 to the mounting seat 400, the support assembly 600 is fixed to the mounting seat 400, avoiding the support assembly 600 from freely wobbling within the air injection chamber 100a of the flexible housing 100 and facilitating its use in daily treatments.

[0106] Referring to FIG. 12, in one embodiment, the base 610 is screwed to the mounting seat 400. By screwing the base 610 of the support assembly 600 to the mounting seat 400, when the support assembly 600 or the mounting seat 400 is damaged, it is not necessary to replace the entire treatment head 10, and only the damaged parts can be replaced, thus avoiding waste of materials.

[0107] Specifically, referring to FIGS. 12 to 13, in one embodiment, the mounting seat 400 is provided with a stud 420, and the base 610 is provided with a mounting hole 610b for passing a screw member. By providing the stud 420 at the groove bottom of the receiving groove 400b of the mounting seat 400 and connecting the screw member to the stud 420 through the mounting hole 610b of the base 610, the support assembly 600 can be attached to the mounting seat 400, realizing the mounting operation of the support assembly 600.

[0108] Referring to FIGS. 12 and 21, the treatment head 10 further includes an adapter plate attached to the air injection chamber 100a, and the rigid circuit board 300 is electrically connected to the handle 20 through this adapter plate 810. By providing the adapter plate 810, the rigid circuit board 300 can be first electrically connected to the adapter board 810 and then electrically connected to the handle 20 through the adapter plate 810. Therefore, it is not necessary to draw out all the conductors connected to the rigid circuit board 300 through the end opening 100b of the flexible housing 100 and electrically connect them to the handle 20. Thereby, the drawing out of the conductors is reduced, and the amount of conductor used can be reduced.

[0109] Referring to FIGS. 4, 12, and 21, by electrically connecting the rigid circuit board 300 to the adapter plate 810 via the first flexible circuit board 820, the connection between the signal line and the adapter plate 810 can be completed, the connection between the signal line and the adapter plate 810 becomes easier, and the assembly efficiency of the treatment head 10 is improved.

[0110] To further facilitate the connection between the first flexible circuit board 820 and the adapter plate 810, referring to FIG. 13, in one embodiment, the adapter plate 810 is provided with a ribbon cable connection terminal 920. By inserting the first flexible circuit board 820 into the ribbon cable connection terminal 920, a rapid connection between the first flexible circuit board 820 and the adapter plate 810 can be realized, and the connection efficiency between the rigid circuit board 300 and the adapter plate 810 can be improved.

[0111] Referring to FIGS. 13 and 22, the treatment head 10 may further include a main board. By sandwiching the main board 830 between the support assembly 600 and the sealing gasket 730, the main board 830 can be fixed. The main board 830 is used to be electrically connected to the rigid circuit board 300. Referring to FIGS. 14 and 19, since the main board 830 is provided with insertion terminals electrically connected to the connection terminals 831, the treatment head 10 can be electrically connected to the handle 20, and the handle 20 can read and display data such as the usage time and usage period of the treatment head 10. After the mounting seat 400 is connected to the handle 20, the connection terminal 831 is exposed on the end face of the mounting seat 400 through the mounting seat 400 so that the connection terminal 831 is connected to the insertion terminal on the handle 20.

[0112] Referring to FIGS. 21 to 22, this adapter plate 810 is electrically connected to the main board 830, and the main board 830 is used to realize the electrical connection between the adapter plate 810 and the handle 20 by being electrically connected to the handle 20. Referring to FIG. 12, the adapter plate 810 is attached to the support assembly 600 to reduce the distance between the adapter plate 810 and the main board 830.

[0113] Referring to FIG. 12, in one embodiment, this treatment head 10 further includes a second flexible circuit board 840 attached to the main board 830. Since the second flexible circuit board 840 is used to be electrically connected to the adapter plate 810, the amount of wire used is reduced and the assembly of the treatment head 10 becomes easier. Note that there may be a plurality of ribbon cable connection terminals 920 of the adapter plate 810. This ribbon cable connection terminal 920 may be connected to the first flexible circuit board 820 or may be connected to the second flexible circuit board 840, so that the connection between the first flexible circuit board 820, the second flexible circuit board 840 and the adapter plate 810 becomes easier.

[0114] To avoid the adapter plate 810 being pushed and damaged by an external force, referring to FIGS. 12, 21 to 22, in one embodiment, this adapter plate 810 is attached to one surface of the support assembly 600 facing the rigid circuit board 300. Since the rigid circuit board 300 and the electrode sheet 200 have a certain degree of hardness, when the flexible case 100 is pressed by an external force, the rigid circuit board 300 and the electrode sheet 200 will not be recessed downward, and it functions to protect the adapter plate 810, so the service life of the product is improved. Specifically, referring to FIGS. 21 to 22, this adapter plate 810 is attached to one surface of the support portion 620 facing the rigid circuit board 300.

[0115] Although there are various ways to attach this adapter plate 810 to the support assembly 600, in order to improve the assembly efficiency, referring to FIGS. 13 to 14, in one embodiment, one end of the adapter plate 810 is inserted into the support portion 620, and the other end is screwed to the support portion 620.

[0116] Referring to FIG. 13, during assembly, one end of the adapter plate 810 is inserted into the support portion 620, and the other end of the adapter is screwed to the support portion 620 using a screw. In this way, not only is the adapter plate 810 firmly attached to the support portion 620, but the amount of screws used is reduced, the assembly process of the operator is reduced, and the assembly efficiency of the product is improved.

[0117] There are various ways to form the insertion groove 620. Referring to FIGS. 13 to 14, in one embodiment, two stopper strips 621 are provided on the support portion 620, and an insertion groove 620 is formed between the two stopper strips 621. Here, the two stopper strips 621 are provided offset in the vertical direction.

[0118] Referring to FIG. 13, since the two stopper strips 621 are offset in the vertical direction, the spatial position between the two stopper strips 621 is large, facilitating the insertion of the adapter plate 810 and improving the assembly efficiency of the adapter plate 810. At the same time, the stopper strip 621 functions to guide the entry of the adapter plate 810 into the insertion groove 620, making the insertion of the adapter plate 810 even easier.

[0119] 12-13, in one embodiment, the support part 620 is provided with a groove 620b, and the groove 620b is adapted to the adapter plate 810 to prevent the adapter plate 810 from being installed in the wrong direction, thereby preventing the adapter plate 810 from being installed backwards and causing rework. This prevents the adapter plate 810 from being installed in the wrong direction, reduces the possibility of installation errors, and improves the consistency of the product, while reducing the weight of the support part 620 and the weight of the entire product, improving the user's convenience. Referring to FIG. 13, both ends of the stopper strip 621 are connected to the groove walls on both sides of the groove 620b, and the two stopper strips 621 form the insertion groove 620 while increasing the strength of the groove 620b and reducing the possibility of deformation of the groove 620b. An attachment hole may be provided at the bottom of this irregular groove 620b, so that the first flexible circuit board 820 attached to the rigid circuit board 300 can be passed through the attachment hole to connect the first flexible circuit board 820 to the adapter plate 810. At the same time, since the adapter plate 810 is attached inside the irregular groove 620b, the strength of the support part 620 can be increased so that the support part 620 is not easily damaged.

[0120] 12-13, in one embodiment, the adapter plate 810 extends in the length direction of the flexible housing 100, making full use of the space of the air injection chamber 100a of the flexible housing 100, avoiding radial increase of the flexible housing 100, and reducing the volume of the flexible housing 100. Referring to FIG. 12, since the adapter plate 810 can be attached to a position of the support part 620 close to the base 610, the distance between the adapter plate 810 and the main board 830 is reduced, the second flexible circuit board 840 is shortened, and the cost is reduced.

[0121] Referring to FIGS. 13 to 14, the width of one end of the adapter plate 810 close to the end opening 100b is larger than the width of one end of the adapter plate 810 far from the end opening 100b. By making the widths of both ends of the adapter plate 810 different, not only can the function of preventing misinsertion be achieved, but also the outer diameter of one end of the support portion 620 far from the base 610 can be made smaller than the outer diameter of one end of the support portion close to the base 610, making it easier to insert the support portion 620 from the end opening 100b into the air injection chamber 100a and facilitating assembly. Also, by making the outer diameter of the second end portion 102 of the flexible housing 100 smaller than the outer diameter of the first end portion 101, it is possible to make it easier to insert the flexible housing 100 into the lumen.

[0122] Continuing to refer to FIGS. 13 to 14, since the ribbon cable connection terminal 920 is a standard component and has a large volume, by attaching the ribbon cable connection terminal to one end of the adapter plate 810 close to the base 610, the ribbon cable connection terminal 920 can be reasonably attached to the adapter plate 810. Referring to FIG. 13, a control unit 910 is further provided on this adapter plate 810. This control unit 910 is used to perform signal conversion, convert the signal of the rigid circuit board 300 into a digital signal, and transmit the digital signal to the main board 830, thereby recording the usage status of the treatment head 10, such as the specific usage time, usage period, etc. Since this control unit 910 has a small volume, referring to FIG. 13, the control unit 910 can be attached to the narrow end of the width of the adapter board 810.

[0123] Referring to FIG. 1, since the mounting seat 400 and the handle 20 are removably connected, it is only necessary to replace the treatment head 10, the handle 20 is fully utilized, waste of materials is saved, and the treatment cost of the user is reduced. Continuing to refer to FIG. 1, in one embodiment, this mounting seat 400 is engaged with the handle 20. By engaging the mounting seat 400 with the handle 20, the mounting seat 400 and the handle 20 can be quickly and efficiently connected, the operation is simple and convenient, and the assembly work for the user is made easier.

[0124] Furthermore, referring to FIGS. 1 to 2, in one embodiment, a fastening block 402 is provided on one of the mounting seat 400 and the handle 20, and a fastening groove 20b is provided on the other. By fastening the fastening block 402 in the fastening groove 20b, the connection between the mounting seat 400 and the handle 20 is realized.

[0125] Continuing to refer to FIGS. 1 to 2, in one embodiment, a fastening block 402 is provided on the outer wall of the mounting seat 400, and a fastening groove 20b is provided on the handle 20. The handle 20 is provided with a mounting groove 20a used to accommodate the mounting seat 400, and a fastening groove 20b is provided on the groove wall of the mounting groove 20a. By fitting the fastening block 402 and the fastening groove 20b, the flexible housing 100 and the handle 20 are connected.

[0126] To facilitate the operation of the user, referring to FIG. 1, in one embodiment, the fastening groove 20b includes a passage groove 20c for inserting the fastening block 402 and a holding groove 20d extending in the circumferential direction of the handle 20, and the passage groove 20c communicates with the holding groove 20d.

[0127] Referring to FIGS. 1 to 2, the fastening block 402 enters the fastening groove 20b through the passage groove 20c. By turning the mounting seat 400, the fastening block 402 moves within the holding groove 20d, and the holding groove 20d holds the fastening block 402 so that the fastening block 402 does not come off from the holding groove 20d. Since the flexible housing 100 is attached to the mounting seat 400, the connection between the flexible housing 100 and the handle 20 is realized. The method of removing the flexible housing 100 is different from the above. First, turn the flexible housing 100, move the fastening block 402 of the mounting seat 400 within the holding groove 20d, and withdraw it from the fastening groove 20b through the passage groove 20c. Furthermore, the flexible housing 100 can be quickly separated from the handle 20. Referring to FIG. 1, this structure of the fastening groove 20b not only facilitates the attachment and detachment between the flexible housing 100 and the handle 20, but also improves the connection stability between the flexible housing 100 and the handle 20.

[0128] Referring to FIGS. 21 to 22, the handle 20 is provided with a contact post 21 corresponding to the air injection hole 400a. When the handle 20 is connected to the mounting seat 400, the contact post 21 is inserted into the air injection hole 400a and abuts against the sealing member 710, so that the sealing member 710 moves away from the air injection hole 400a to open the air injection hole 400a. Continuing to refer to FIGS. 21 to 22, in one embodiment, the contact post 21 of the handle 20 may be provided with an air inlet 21a. The air inlet 21a may be formed on the end face of the contact post 21. The contact post 21 is connected to an air pump via an air injection tube 22. Since the air injection tube 22 communicates with the air inlet 21a, gas enters from the air injection tube 22, passes through the air inlet 21a and into the accommodation groove 600a, and then reaches the air injection chamber 100a of the flexible housing 100 from the accommodation groove 600a.

[0129] Referring to FIGS. 31 to 32, in one embodiment, the handle 20 is provided with a limiting post 23a that can protrude from and retract into the treatment head 10. The mounting seat 400 is provided with a position limiting hole 400d for accommodating the position limiting post 23a, and the position limiting hole 400d is offset from the axis of the treatment head 10. When it is necessary to remove the treatment head 10, first, move the position limiting post 23a into the handle 20, withdraw the position limiting post 23a from the position limiting hole 400d, then turn the treatment head 10, move the engaging block 402 on the mounting seat 400 within the engaging groove 20b, and finally, take out the engaging block 402 from the engaging groove 20b to separate the treatment head 10 from the handle 20. When it is necessary to connect the handle 20 and the treatment head 10, turn the treatment head 10. If the position limiting post 23a is inserted into the position limiting hole 400d, it means that the handle 20 and the treatment head 10 are fitted together.

[0130] On the one hand, when the handle 20 and the treatment head 10 are fitted together, the positioning post 23a extends into the positioning hole 400d. Since the position of the positioning hole 400d on the mounting seat 400 is offset from the axis of the treatment head 10, the positioning post 23a prevents the rotation of the treatment head 10 and the treatment head 10 cannot be further rotated. When the position-limiting post 23a exits from the position-limiting hole 400d, as long as it does not prevent the rotation of the treatment head 10, the end of the position-limiting post 23a may be lower than the groove wall surface of the mounting groove 20a, and a part of the position-limiting post 23a may protrude from the groove wall surface of the mounting groove 20a. The position-limiting post 23a may be provided at the groove bottom of the mounting groove 20a, or may be provided on the side wall of the mounting groove 20a, and specifically, it may be provided according to the actual situation.

[0131] Furthermore, referring to FIGS. 33 to 34, in one embodiment, the position-limiting post 23a is elastically mounted in the handle 20. By elastically mounting the position-limiting post 23a, when no external force is acting, the position-limiting post 23a extends by a length that can enter the position-limiting hole 400d, thereby functioning to limit the position of the treatment head 10. When the position-limiting post 23a receives an external force, the position-limiting post 23a moves into the handle 20 and the position-limiting post 23a exits from the position-limiting hole 400d. Since the position-limiting post 23a is elastically mounted on the handle 20, when the treatment head 10 and the handle 20 are fitted and rotated, the end of the treatment head 10 abuts against the position-limiting post 23a. When the position-limiting post 23a and the position-limiting hole 400d perfectly overlap, the position-limiting post 23a elastically restores and falls into the position-limiting hole 400d. At this time, there is a sound of "click", indicating that the attachment of the treatment head 10 and the handle 20 is successful. Otherwise, it indicates that the fitting of the two is not correctly fitted.

[0132] Referring to FIGS. 33 to 34, in one embodiment, a push key 24 is provided on the handle 20. The push key 24 is connected to the position limiting post 23a to drive the movement of the position limiting post 23a. By pressing this push key 24, the user applies a force to the position limiting post 23a, drives the position limiting post 23a to move into the handle 20, withdraws the position limiting post 23a from the position limiting hole 400d, and enables the treatment head 10 to rotate.

[0133] Referring to FIG. 35, in one embodiment, a cantilever 25 is provided on this handle 20. The cantilever 25 is provided with a push key 24 on its surface and a convex block 25a on its inner side. The convex block 25 has an inclined surface 25b that extends obliquely in a direction toward the cantilever 25 from one end close to the mounting groove. A link 23b and a guide block 23c are provided on the position limiting post 23a. The link 23b connects the position limiting post 23a and the guide block 23c, and the guide block 23c is located on one side of the link 23b facing the inclined surface 25b.

[0134] Referring to FIGS. 32 and 35, when the user presses the push key 24, the cantilever 25 moves downward. At this time, the convex block 25a applies a downward force to the guide block 23c, and the inclined surface 25b provided on the convex block 25a moves the guide block 23c in a direction away from the mounting groove 20a, moves the link 23b backward, and thus moves the position limiting post 23a on the link 23b into the handle 20. In this way, the up and down movement is converted into the axial movement of the handle 20, and the movement of the position limiting post 23a is driven skillfully.

[0135] There are various ways to achieve the elastic movement of the position limiting post 23a in the axial direction of the handle 20. Referring to FIG. 35, in one embodiment, the link 23b realizes the elastic movement of the position limiting post 23a via the elastic member 26. An attachment post 27 is attached to the handle 20, and a guide groove for accommodating the elastic member 26 is provided in the attachment post 27. One end of the elastic member 26 abuts against the link 23b, and the other end abuts against the bottom of the guide groove. When no external force is acting, the elastic member 26 is in a compressed state, driving the link 23b to move in the direction of the attachment groove 20a, and the position limiting post 23a extends and enters the position limiting hole 400d. Due to the action of the push key 24, the link 23b is driven to move in a direction away from the attachment groove 20a, the position limiting post 23a moves into the handle 20, and the elastic member 26 is compressed and its volume becomes smaller. Note that this elastic member 26 may be a spring.

[0136] To facilitate attachment and positioning, referring to FIG. 35, in one embodiment, a guide rod 23d having an outer diameter smaller than the outer diameter of the link 23b is provided at one end of the link 23b that abuts against the elastic member 26, and the elastic member 26 can be fitted onto the outer periphery of the guide rod 23d. Similarly, referring to FIG. 35, a convex post 28 is provided on the back of the bottom of the attachment groove 20a, and a post groove for accommodating the convex post 28 is provided in the link 23b. This not only facilitates the attachment and positioning of the link 23b, but also guides the movement of the link 23b so that the position limiting post 23a does not shift from the through hole for the extension of the position limiting post 23a, enabling the position limiting post 23a to extend smoothly from the through hole during return.

[0137] What has been described above is merely a preferred embodiment of the present application and does not limit the scope of the patent of the present application. Under the inventive concept of the present application, equivalent structural conversions made using the content of the specification and attached drawings of the present application, or direct / indirect applications to other related technical fields, are all included in the scope of patent protection of the present application.

Description of Reference Numerals

[0138] 1 Luminal treatment system 10 Treatment head 20 Handle 20a Mounting Groove 20b Attachment Groove 20c Passage Groove 20d Retaining Groove 21 Contact Post 21a Air Inlet 22 Air Injection Tube 23a Position Limiting Post 23b Link 23c Guide Block 23d Guide Rod 24 Push Key 25 Cantilever 25a Convex Block 25b Inclined Plane 26 Elastic Member 27 Mounting Post 28 Convex Post 100 Flexible Housing 100a Air Injection Chamber 100b End Opening 101 First End 102 Second End 110 Fold 111 Concave Groove 120 Retaining Part 121 Extension Part 122 Clamping Part 130 Positioning Block 140 Extension Ring 200 Electrode Sheet 200a Position Limiting Groove 200b Retraction Groove 210 Pressure Receiving Part 221 Connection Part 222 Connection Member 230 First Positioning Post 300 Rigid Circuit Board 300a Positioning Hole 400 Mounting Seat 400a Air Injection Hole 400b Receiving Groove 400c Sealing Groove 400d Position Limiting Hole 401 Annular Projection 402 Attachment Block 403 Attachment Member 410 Flange 420 Stud 500 Mounting Member 510 Extension Tube 510a Insertion Prevention Opening 510b First Groove Opening 510c Second Groove Opening 511 Attachment Hook 511a Attachment Hook Portion 512 Connection Rib 520 Fitting Ring 521 Strip Protrusion 530 Reinforcing Rib 540 Guide Rib 600 Support Assembly 600a Receiving Groove 600b Vent Hole 601 Column 610 Base 610a Relief Opening 610b Mounting Hole 620 Support Portion 620a Insertion Groove 620b Irregular Groove 621 Stopper Strip 622 Reinforcing Strip 710 Sealing Member 711 Positioning Post 720 Elastic Member 730 Sealing Gasket 730a Vent Hole 731 Gasket Body 731a Relief Opening 732 Seal Ring 732a Outward Fold 810 Adapter Plate 820 First Flexible Circuit Board 830 Main Board 831 Connection Terminal 840 Second Flexible Circuit Board 910 Control Unit 920 Ribbon Cable Connection Terminal 930 Temperature Sensor

Claims

1. A treatment head used for lumen treatment, which is used to be removably connected to a handle, a flexible housing that can be inflated by air injection, a support assembly mounted in the flexible housing to support the flexible housing, a rigid circuit board, and a plurality of electrode sheets, wherein the rigid circuit board is attached to the flexible housing to support the flexible housing, the electrode sheets are attached to the rigid circuit board and exposed on the outer peripheral wall of the flexible housing, and the plurality of electrode sheets are arranged at intervals in the longitudinal direction of the flexible housing Treatment head.

2. An air injection chamber is provided in the flexible housing, the support assembly includes a support portion, and the support portion extends into the air injection chamber to support the flexible housing The treatment head according to claim 1.

3. Further including a mounting seat attached to the flexible housing, wherein the mounting seat is provided with an air injection hole communicating with the air injection chamber The treatment head according to claim 2.

4. Further including a sealing gasket attached to the mounting seat, wherein the sealing gasket includes a gasket body and a sealing ring, the gasket body is located on one surface of the mounting seat away from the handle, and the sealing ring extends along the hole wall surface of the air injection hole and is exposed in the air injection hole The treatment head according to claim 3.

5. The sealing ring is provided with an outward fold The treatment head according to claim 4.

6. Further including a sealing member, wherein the sealing member elastically abuts against the sealing gasket to seal the air injection hole The treatment head according to claim 4.

7. An end opening communicating with the air injection chamber is provided in the flexible housing, an extension ring is provided at the end opening, a receiving groove for receiving the extension ring is provided in the mounting seat, and an annular protrusion for abutting against the flexible housing is provided on the groove peripheral edge of the receiving groove The treatment head according to claim 3.

8. There are a plurality of the annular protrusions, and the plurality of annular protrusions are arranged at intervals on the groove peripheral edge of the mounting seat The treatment head according to claim 7.

9. Further including a mounting member attached to the end opening, The mounting member includes an extending cylinder used to be connected to the mounting seat and a fitting ring fitted into the flexible housing. The treatment head according to claim 7.

10. The support assembly further includes a base attached to the mounting seat. The support portion is provided on the base. The mounting member is engaged with the mounting seat through the base. The treatment head according to claim 9.

11. One of the mounting member and the mounting seat is provided with a fastening hook, and the other is provided with a fastening member that fits with the fastening hook. The treatment head according to claim 10.

12. Further includes an adapter plate. The adapter plate is attached to the support assembly, electrically connected to the rigid circuit board, and used to be electrically connected to the handle. The treatment head according to claim 1.

13. Includes the treatment head according to any one of claims 1 to 12 and a handle, and the treatment head and the handle are removably connected. Luminal treatment system.

14. One of the treatment head and the handle is provided with a fastening block, and the other is provided with a fastening groove. The luminal treatment system according to claim 13.

15. The handle is provided with a mounting groove for accommodating at least a part of the treatment head. The groove wall of the mounting groove is provided with a fastening groove, and the treatment head is provided with a fastening block. The fastening groove includes a passage groove for inserting the fastening block and a holding groove extending in the circumferential direction of the handle, and the passage groove communicates with the holding groove. The luminal treatment system according to claim 14.

16. An air injection chamber is provided in the flexible housing. The treatment head further includes a mounting seat attached to the flexible housing. The mounting seat is provided with an air injection hole communicating with the air injection chamber. The handle is provided with a contact post inserted into the air injection hole, and the contact post is provided with an air inlet. The luminal treatment system according to claim 13.

17. The treatment head further includes a sealing gasket attached to the mounting seat. The sealing gasket includes a gasket body and a sealing ring. The gasket body is located on one surface of the mounting seat away from the handle. The sealing ring extends along the hole wall surface of the air injection hole and is exposed in the air injection hole. The lumen treatment system according to claim 16.

18. The treatment head further includes a sealing member, the sealing member elastically abuts against the sealing gasket to seal the air injection hole, and when the contact post is inserted into the air injection hole, the contact post abuts against the sealing member to open the air injection hole The lumen treatment system according to claim 17.

19. The handle is provided with a position limiting post that can protrude from and retract from the treatment head, the treatment head is provided with a position limiting hole for accommodating the position limiting post, and the position limiting hole is offset from the rotation axis of the handle The lumen treatment system according to claim 13.

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