An insertion tube, an insertion portion, and an endoscope

Abstract

The present invention discloses an insertion tube, an insertion part and an endoscope, belonging to the technical field of endoscopes. The insertion tube includes a bending tube and a clamping member. An installation groove is provided on the side wall of the bending tube, and the installation groove axially penetrates through both ends of the bending tube along the axial direction of the bending tube; the clamping member is a sheet-like structure made of a flexible material, and the clamping member includes an inner wall surface, a first side wall, an outer wall surface and a second side wall arranged in sequence along its circumferential direction. Both the first side wall and the second side wall are connected to the inner wall surface and the outer wall surface; the clamping member can be radially extruded into the installation groove by the camera module along the bending tube, so that the inner walls of the installation groove are all attached to the outer wall surface, and the inner wall surface encloses a receiving cavity for assembling the camera module, and the first side wall and the second side wall are abutted tightly to isolate the notch of the installation groove from the receiving cavity. In this application, by providing the clamping member and cooperating the clamping member with the camera module, the clamping member is assembled while the camera module is assembled, and at the same time, the clamping member wraps the camera module to isolate pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and particularly to an insertion tube, an insertion portion and an endoscope. Background Art

[0002] An endoscope is a commonly used medical device. The endoscope includes an insertion portion which can extend into the human body, and an imaging module at the distal end of the insertion portion is used to obtain image information inside the human body.

[0003] The cost of the imaging module accounts for a relatively large proportion of the cost of a disposable endoscope. In the prior art, generally, the imaging module is separately provided as a slender member, and the imaging module is detachably assembled into the insertion portion, so as to facilitate taking out the imaging module after the disposable endoscope is used, and realize the reuse of the imaging module.

[0004] In some products, an imaging installation channel penetrating through both end faces of the insertion portion is provided in the insertion portion, and then the imaging module is inserted into the imaging installation channel from the proximal end, and the imaging module is pushed to move the imaging module towards the distal end of the insertion portion so as to install the imaging module in place. In this structure, the sealing effect on the imaging module is good, and the probability of the imaging module being polluted by the external environment is relatively low. When the imaging module is reused later, the cleaning steps can be simplified. However, since the size of the installation channel is generally only slightly larger than the imaging module, and in the slender structure of the imaging module, most are cables bundled together or scattered, which are easily bent and deformed, it is not easy for the assembly personnel to push the imaging module to move in the imaging installation channel, and the assembly difficulty of assembling the imaging module into the insertion portion is high.

[0005] In other products, a groove is directly provided at the side wall position of the insertion portion, and the imaging module is installed into the insertion portion from the side of the insertion portion. This installation method is simple and convenient, and the installation difficulty is low. However, the sealing effect of this assembly structure is relatively poor, and when the imaging module is reused later, the cleaning and disinfection steps are complicated. Summary of the Invention

[0006] The purpose of the present application is to provide an insertion tube, an insertion portion and an endoscope to solve the above technical problems existing in the prior art.

[0007] The present application is implemented as follows:

[0008] In a first aspect, an embodiment of the present application provides an insertion tube, which is applied to an endoscope and includes a bending tube and a clamping member. An installation groove is provided on the side wall of the bending tube, and the installation groove penetrates through both ends of the bending tube along the axial direction of the bending tube; the clamping member is a sheet-like structure made of a flexible material, and the clamping member includes an inner wall surface, a first side wall, an outer wall surface, and a second side wall arranged in sequence along its circumferential direction. Both the first side wall and the second side wall are connected to the inner wall surface and the outer wall surface; when the clamping member covers the notch of the installation groove, the outer wall surface faces the installation groove, the inner wall surface is used to contact the camera module, and the clamping member can be radially extruded by the camera module into the installation groove, so that the inner walls of the installation groove are all attached to the outer wall surface, and the inner wall surface encloses a receiving cavity for assembling the camera module, and the first side wall and the second side wall are tightly abutted to isolate the notch of the installation groove from the receiving cavity.

[0009] In a second aspect, an embodiment of the present application provides an insertion part, which includes the insertion tube provided in the first aspect embodiment, and further includes a front end seat. The front end seat is installed at the distal end of the bending tube, and the front end seat is provided with a camera module installation channel. When the inner wall surface of the clamping member encloses a receiving cavity, the camera module installation channel corresponds to and communicates with the receiving cavity.

[0010] In a third aspect, an embodiment of the present application provides an endoscope, which includes the insertion part provided in the second aspect embodiment.

[0011] The technical solution provided by the present application can achieve the following beneficial effects:

[0012] In the present application, the installation groove is provided on the side wall of the bending tube, which is convenient for assembling the camera module into the installation groove; the clamping member is provided to cooperate with the camera module. During the process of assembling the camera module into the installation groove, the camera module can simultaneously extrude the clamping member into the installation groove, simplifying the assembly steps of the clamping member and avoiding the complication of the installation of the camera module due to the presence of the clamping member; at the same time, during the assembly process of the camera module, the clamping member is a flexible structure and can be deformed after being extruded, so as to enclose the camera module, isolating the camera module from the notch of the installation groove, so that the receiving cavity where the camera module is located is an independent space, which can prevent the liquid in the body cavity environment corresponding to the insertion tube from contaminating the camera module through the installation groove.

[0013] In addition, during the use of the endoscope, the camera module is always in the receiving cavity formed by the enclosure of the inner wall surface. After the endoscope is used and the camera module is taken out, the camera module separates the first side wall and the second side wall by extruding the clamping member, and the camera module passes through the opening between the first side wall and the second side wall. The disassembly process of the camera module is convenient, and the camera module only contacts the inner wall surface of the clamping member during the disassembly process, further preventing the camera module from being contaminated. Description of the Drawings

[0014] 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 the description of the embodiments or the prior art. 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.

[0015] Figure 1 is a schematic diagram of the overall structure of the insertion tube provided by some embodiments of the present application;

[0016] Figure 2 is about Figure 1 detail view of location A;

[0017] Figure 3 is a schematic diagram of the cooperation between the insertion tube and the camera module provided by some embodiments of the present application Figure 1 ;

[0018] Figure 4 is about Figure 3 detail view of location B;

[0019] Figure 5 is a schematic diagram of the structure of the bending tube provided by some embodiments of the present application;

[0020] Figure 6 is a schematic diagram of the structure of the clamping member provided by some embodiments of the present application Figure 1 ;

[0021] Figure 7 is a schematic diagram of the structure of the clamping member provided by some embodiments of the present application Figure 2 ;

[0022] Figure 8 is a process diagram of the assembly of the bending tube and the clamping member provided by some embodiments of the present application;

[0023] Figure 9 is a schematic diagram of the cooperation between the insertion tube and the camera module provided by some embodiments of the present application Figure 2 ;

[0024] Figure 10 is a schematic diagram of the cooperation between the insertion tube and the camera module provided by some embodiments of the present application Figure 3 ;

[0025] Figure 11 is about Figure 10 detail view of location C;

[0026] Figure 12 is a schematic diagram of the cooperation between the insertion tube and the camera module provided by some embodiments of the present application Figure 4 ;

[0027] Figure 13 Schematic diagram of the cooperation between the insertion tube and the camera module provided by some embodiments of the present application Figure 5 ;

[0028] Figure 14 Schematic diagram of the overall structure of the endoscope provided by some embodiments of the present application;

[0029] Figure 15 This application is about Figure 14 Detail view of point D.

[0030] In the figure: 100 - bending tube, 110 - mounting groove, 200 - clamping member, 210 - inner wall surface, 220 - first side wall, 230 - outer wall surface, 240 - second side wall, 250 - accommodating cavity, 260 - first sealing portion, 270 - second sealing portion, 280 - rotating portion, 300 - protective film, 400 - front end seat, 500 - camera module, 10 - endoscope, 11 - handle. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0032] In each embodiment of the present application, "proximal end" and "distal end" refer to the relative positions of the endoscope and its accessories to the user in the usage environment. Among them, the end closer to the user is designated as the "proximal end", and the end farther from the user is designated as the "distal end".

[0033] Some embodiments of the present application provide an insertion tube, which is applied to the endoscope 10 and inserted into the human body for use. The insertion tube includes a bending tube 100 and a clamping member 200, as shown in reference to Figure 2 and Figure 4 . The bending tube 100 is a bendable tubular structure. As shown in reference to Figure 1 and Figure 3 , the bending tube 100 can be bent and deformed to adapt to the curved channels in the human body. As shown in reference to Figure 5As shown, the side wall of the bent tube 100 is provided with an installation groove 110, and the installation groove 110 axially penetrates through both ends of the bent tube 100 along the axial direction of the bent tube 100. The installation groove 110 penetrates through both ends of its axial direction. After the camera module 500, which is an elongated structure, is installed in the installation groove 110, both ends of the camera module 500 can be exposed outside the bent tube 100, which is convenient for the distal end of the camera module 500 to be connected to the front seat 400 on the distal side of the bent tube 100, and is also convenient for the proximal end of the camera module 500 to extend to the handle 11 on the proximal side of the bent tube 100.

[0034] The clamping member 200 is a sheet-like structure made of a flexible material, and the clamping member 200 can be deformed under the action of an external force. The clamping member 200 includes an inner wall surface 210, a first side wall 220, an outer wall surface 230, and a second side wall 240 arranged in sequence along its circumferential direction. Both the first side wall 220 and the second side wall 240 are connected to the inner wall surface 210 and the outer wall surface 230, and reference can be made to Figure 6 and Figure 7 shown. The clamping member 200 is a sheet-like structure, and the inner wall surface 210 and the outer wall surface 230 are two surfaces in its thickness direction.

[0035] The clamping member 200 can cover the notch of the installation groove 110. When the clamping member 200 covers the notch of the installation groove 110, reference can be made to Figure 8 shown. The outer wall surface 230 of the clamping member 200 faces the installation groove 110, and the inner wall surface 210 of the clamping member 200 is used to contact the camera module 500. The clamping member 200 can be radially extruded by the camera module 500 into the installation groove 110 along the bent tube 100, so that the inner walls of the installation groove 110 are all in contact with the outer wall surface 230 of the clamping member 200, and the inner wall surface 210 encloses a receiving cavity 250 for assembling the camera module 500. The first side wall 220 and the second side wall 240 are tightened to isolate the notch of the installation groove 110 from the receiving cavity 250. Reference can be made to Figure 6 shown.

[0036] When the clamping member 200 covers the installation groove 110, the camera module 500 contacts the inner wall surface 210 of the clamping member 200. The camera module 500 is above the clamping member 200, and the installation groove 110 is below. Driving the camera module 500 to move along the radial direction of the bent tube 100, the clamping member 200 can be extruded by the camera module 500, so that the clamping member 200 is extruded into the installation groove 110. For the clamping member 200 in the installation groove 110, one side is the camera module 500, and the other side is the inner wall of the installation groove 110. The two cooperate to limit the deformation direction of the clamping member 200, so that the clamping member 200 encloses and wraps around the outside of the camera module 500, and the first side wall 220 and the second side wall 240 of the clamping member 200 are tightened, thereby improving the sealing effect on the camera module 500.

[0037] In the embodiments provided by the present application, the installation groove 110 is arranged on the side wall of the bent tube 100, which facilitates the assembly of the camera module 500 and the clamping member 200 into the installation groove 110, and also facilitates the removal of the camera module 500 and the clamping member 200 from the installation groove 110, so as to disassemble the camera module 500.

[0038] Compared with the structure of arranging a groove on the side wall of the bent tube 100 in the prior art to assemble the camera module 500, in the insertion tube provided by the embodiments of the present application, even though there is an additional clamping member 200, the clamping member 200 can be assembled into the installation groove 110 while assembling the camera module 500, without the need to additionally install the clamping member 200. The presence of the clamping member 200 does not increase the complexity of the installation steps of the camera module 500. At the same time, the clamping member 200 is a flexible structure and is squeezed between the camera module 500 and the inner wall of the installation groove 110, which can improve the installation stability of the camera module 500 in the installation groove 110.

[0039] The clamping member 200 can directly seal the camera module 500 without the need for additional sealing settings. The insertion tube provided by the embodiments of the present application achieves a balance in terms of the installation convenience of the camera module 500 and the sealing effect. It neither increases the installation difficulty of the camera module 500, and at the same time, ensures its sealing effect, avoiding the situation that the camera module 500 is contaminated during the use of the endoscope 10.

[0040] After the clamping member 200 is squeezed into the installation groove 110, the clamping member 200 deforms. The abutment of the first side wall 220 and the second side wall 240 isolates the accommodation cavity 250 formed by the inner wall surface 210 of the clamping member 200 from the notch of the installation groove 110, thereby preventing liquid in the external environment from entering the accommodation cavity 250 through the notch of the installation groove 110 and avoiding the camera module 500 in the accommodation cavity 250 from being contaminated.

[0041] During the use of the insertion tube, both the proximal end and the distal end of the bent tube 100 are connected to other structures, and liquid in the external environment will not enter the installation groove 110 through the two openings at both ends of the installation groove 110. Therefore, isolating the notch of the installation groove 110 from the accommodation cavity 250 can prevent the camera module 500 from being contaminated by the external environment.

[0042] Preferably, the axial length of the clamping member 200 provided in the embodiment of the present application is the same as the axial length of the installation groove 110, and the clamping member 200 can provide sealing protection for the imaging module 500 within the length range of the bending tube 100. In some other embodiments, the axial length of the clamping member 200 may also be shorter than the axial length of the installation groove 110. During the use of the bending tube 100, not all of it is inserted into the human body. The proximal part of the bending tube 100 is connected to the handle 11 of the endoscope 10, and some of the proximal tube segments of the bending tube 100 will not be inserted into the human body and will not come into contact with substances such as tissue fluid. Therefore, the sealing protection effect on the imaging module 500 in this part of the area can be slightly worse, and the clamping member 200 may not be provided to cover the outside of the imaging module 500.

[0043] The clamping member 200 is a sheet-like structure. The thickness of the clamping member 200 depends on the dimensions of the installation groove 110 and the imaging module 500. At the same time, attention also needs to be paid to the width dimension of the clamping member 200 to ensure that when the clamping member 200 is assembled into the installation groove 110, under the limitation of the installation groove 110, its first side wall 220 can be in close contact with the second side wall 240.

[0044] After the clamping member 200 is assembled into the installation groove 110, the inner walls of the installation groove 110 are all in contact with the outer wall surface 230 of the clamping member 200, driving the clamping member 200 to bend. The bending shape of the clamping member 200 is similar to the shape of the installation groove 110. The structure of the clamping member 200 cannot be set arbitrarily. It should be noted that after the clamping member 200 is assembled into the installation groove 110, the first side wall 220 and the second side wall 240 of the clamping member 200 can be in close contact with each other, thereby forming a relatively sealed accommodation cavity 250. Refer to Figure 2 as shown.

[0045] Similar to the step of installing the imaging module 500, when the imaging module 500 is taken out from the installation groove 110, the imaging module 500 is driven to move outward from the installation groove 110. Due to the movement of the imaging module 500, the clamping member 200 will be deformed, and the first side wall 220 and the second side wall 240 in the moving direction of the imaging module 500 will gradually separate as the clamping member 200 deforms, forming an opening for the imaging module 500 to pass through. The imaging module 500 passes through this opening and is taken out from the installation groove 110. The process of taking out the imaging module 500 is simple and convenient to operate. Only the imaging module 500 needs to be moved, and no additional steps are required. Refer to Figure 9 as shown. During the process of taking out the imaging module 500, one end of the imaging module 500 can be directly held, and then the imaging module 500 can be pulled outward to take out the imaging module 500 from the installation groove 110.

[0046] During the use of the endoscope 10 and the removal process of the camera module 500, the camera module 500 only contacts the inner wall surface 210 of the clamping member 200, which can further prevent the camera module 500 from being contaminated, thereby reducing the difficulty of subsequent cleaning and disinfection of the camera module 500.

[0047] In some preferred embodiments of the present application, referring to Figure 6 and Figure 7 As shown, the clamping member 200 includes a first sealing portion 260 and a second sealing portion 270 at both ends in its width direction. The first side wall 220 is located at the first sealing portion 260, and the second side wall 240 is located at the second sealing portion 270. When the first side wall 220 and the second side wall 240 are in tight fit, the first sealing portion 260 and the second sealing portion 270 are clamped between two opposite positions on the inner wall of the installation groove 110.

[0048] Two opposite positions on the inner wall of the installation groove 110 refer to two inner wall regions in the same straight line direction. The first sealing portion 260 and the second sealing portion 270 are clamped between these two inner wall regions. The two sealing portions are under stable force and can maintain the stability of the bent shape of the clamping member 200 to achieve a stable sealing effect on the camera module 500.

[0049] Further preferably, the outer wall surfaces 230 corresponding to the first sealing portion 260 and the outer wall surfaces 230 corresponding to the second sealing portion 270 are both convexly provided, so that when the first side wall 220 and the second side wall 240 are in tight fit, along the circumferential direction of the bent tube 100, the radial distance between the outer wall surfaces 230 of the first sealing portion 260 and the second sealing portion 270 exposed outside the notch of the installation groove 110 and the axis of the bent tube 100 first increases and then decreases, and the edges of the first side wall 220 and the second side wall 240 are aligned. Refer to Figure 12 and Figure 13 As shown.

[0050] Invert the bent tube 100 so that the notch of the installation groove 110 faces the ground. For the first sealing portion 260, the radial distance between the outer wall surface 230 exposed outside the installation groove 110 and the axis of the bent tube 100 first increases and then decreases. The positions where the first sealing portion 260 contacts the notch of the installation groove 110 and the positions where the first sealing portion 260 contacts the second sealing portion 270 are at high points, and the middle region of the first sealing portion 260 is at a low point; for the second sealing portion 270, the radial distance between the outer wall surface 230 exposed outside the installation groove 110 and the axis of the bent tube 100 first increases and then decreases. The positions where the second sealing portion 270 contacts the notch of the installation groove 110 and the positions where the second sealing portion 270 contacts the first sealing portion 260 are at high points, and the middle region of the second sealing portion 270 is at a low point. Here, high and low are relative to the ground.

[0051] When removing the camera module 500, the side of the flexible tube 100 with the installation groove 110 is placed downward, and the regions in the middle of the first sealing portion 260 and the second sealing portion 270 are in a low position. Here, "low" refers to the lower position in the direction of gravity. Placing the flexible tube 100 in this way, the liquid on the surface of the flexible tube 100 will accumulate at the middle position between the first sealing portion 260 and the second sealing portion 270, while the position where the first sealing portion 260 and the second sealing portion 270 are joined is at a higher position in the direction of gravity and generally not prone to liquid accumulation. In this case, when removing the camera module 500 and separating the first side wall 220 from the second side wall 240, it is possible to further avoid the situation where the liquid on the outer wall surface 230 of the clamping member 200 flows to the inner wall surface 210 to contaminate the camera module 500.

[0052] Moreover, when removing the camera module 500, the entire flexible tube 100 and the partial outer wall surface 230 exposed at the notch of the installation groove 110 can be disinfected and cleaned in advance to avoid contaminating the camera module 500 during the process of removing the camera module 500.

[0053] The edges of the first side wall 220 and the edges of the second side wall 240 are aligned with each other, so that the contact area between the first sealing portion 260 and the second sealing portion 270 is as large as possible, thereby making the effect of the first sealing portion 260 and the second sealing portion 270 pressing against each other more stable.

[0054] Further preferably, the joining position between the first sealing portion 260 and the notch of the installation groove 110 is smoothly joined with the circumferential side wall of the flexible tube 100, and the same applies to the second sealing portion 270. This makes the circumferential side wall of the insertion tube as flat as possible to avoid discomfort to the human body caused by the circumferential side wall of the insertion tube during the insertion process.

[0055] In some embodiments of the present application, protective films 300 are installed in partial regions where the inner wall surface 210 is joined with the first side wall 220 and partial regions where the inner wall surface 210 is joined with the second side wall 240. The protective films 300 are of a flexible structure, and the edges of the protective films 300 are fixed to the inner wall surface 210. Moreover, the friction coefficient between the protective films 300 and the inner wall surface 210 is less than the friction coefficient between the protective films 300 and the camera module 500.

[0056] The protective films 300 are arranged at both ends of the inner wall surface 210 and are joined with the first side wall 220 or the second side wall 240. After the first side wall 220 and the second side wall 240 are abutted, the protective films 300 corresponding to the connected two side walls also contact each other. For reference, Figure 2 and Figure 4 as shown, the protective films 300 can further improve the protection effect on the camera module 500.

[0057] When the camera module 500 is taken out from the clamping member 200, the protective film 300 is located on the moving path of the camera module 500, and the protective film 300 will come into contact with the protective film 300. At the same time, since the friction coefficient between the protective film 300 and the inner wall surface 210 is less than the friction coefficient between the protective film 300 and the camera module 500, the frictional force between the camera module 500 and the protective film 300 is greater than the frictional force between the protective film 300 and the inner wall surface 210. After the camera module 500 comes into contact with the protective film 300, the part of the protective film 300 in contact with the camera module 500 will adhere to the outside of the camera module 500 and move with the camera module 500, and this part of the protective film 300 moves relative to the inner wall surface 210 of the clamping member 200.

[0058] During the process of taking out the camera module 500, after the camera module 500 comes into contact with the protective film 300, the camera module 500 continues to move outwards towards the outside of the clamping member 200, and the part of the protective film 300 in contact with the camera module 500 moves with the camera module 500. The part of the protective film 300 located below this part is stretched after being pulled to adapt to the change in the position of the protective film 300; the part of the protective film 300 located above this part is pushed and moves towards the outside of the clamping member 200, and finally accumulates at both ends of the clamping member 200. Refer to Figure 10 and Figure 11 As shown, it can be understood that the above and below here are based on the directions shown in Figure 10 and Figure 11 As shown.

[0059] Since the protective film 300 accumulates at both ends of the clamping member 200, when taking out the camera module 500, it can further prevent the camera module 500 from contacting the first side wall 220 and the second side wall 240 of the clamping member 200, thereby further preventing the camera module 500 from being contaminated, and trying to ensure that the camera module 500 only contacts the inner wall surface 210 of the clamping member 200 and the protective film 300 during the taking-out process, reducing the difficulty of the taking-out operation of the camera module 500.

[0060] The axial length of the protective film 300 should be the same as the axial length of the clamping member 200. The edges at both axial ends of the protective film 300 are fixed to the edges at both axial ends of the clamping member 200. The end of the protective film 300 close to the first side wall 220 is fixed to the edge of the first side wall 220, and the end of the protective film 300 close to the second side wall 240 is fixed to the edge of the second side wall 240. The axial direction mentioned here is parallel to the axial direction of the bending tube 100.

[0061] In some embodiments, the end of the protective film 300 close to the first side wall 220 is fixed to the first side wall 220, the end of the protective film 300 close to the second side wall 240 is fixed to the edge of the second side wall 240, and the other edges of the protective film 300 are freely arranged. In this structure, the protective film 300 can move with the movement of the camera module 500 and is more likely to accumulate at both ends in the width direction of the clamping member 200.

[0062] Further preferably, along the circumferential direction of the clamping member 200, the width of a partial area of the inner wall surface 210 where the protective film 300 is arranged is less than half of the width of the inner wall surface 210. The area where the protective film 300 is arranged should not be too much. When placing the camera module 500 into the clamping member 200, it is necessary to avoid the protective film 300 being located on the movement path of the camera module 500, so as to avoid pulling the protective film 300 during the assembly process of the camera module 500, resulting in the situation that when the camera module 500 is taken out, the protective film 300 cannot be smoothly stacked at both ends of the clamping member 200 to protect the camera module 500.

[0063] In some embodiments of the present application, a rotating portion 280 is arranged on the outer wall surface 230 of the clamping member 200, as shown in Figure 6 and Figure 7 The clamping member 200 covers the notch of the installation groove 110, and the rotating portion 280 is rotatably connected to the bending pipe 100. There is a connection relationship between the clamping member 200 and the bending pipe 100, which can be connected in advance. When the camera module 500 needs to be assembled, the camera module 500 is placed on the inner wall surface 210 and the clamping member 200 is pushed to move. Moreover, there is a connection relationship between the clamping member 200 and the bending pipe 100. When the clamping member 200 is squeezed into the installation groove 110, the clamping member 200 can be installed at the preset assembly position, and it is not easy to have the situation that the actual assembly position of the clamping member 200 is different from the preset assembly position.

[0064] Furthermore, the rotating portion 280 can rotate relative to the bending pipe 100, so that the position of the clamping member 200 has a certain margin of movement, so as to ensure that when the clamping member 200 is squeezed by the camera module 500, it can be smoothly assembled into the installation groove 110 and smoothly covered outside the camera module 500.

[0065] In some other embodiments of the present application, the clamping member 200 is directly connected to the bending pipe 100. When the clamping member 200 covers the notch of the installation groove 110 and the camera module 500 does not squeeze the clamping member 200, the positions where the clamping member 200 and the bending pipe 100 are in contact can be fixed by means such as dotting and welding to limit the relative positions of the clamping member 200 and the bending pipe 100, and avoid the situation that the actual assembly position of the clamping member 200 is different from the preset assembly position.

[0066] In other embodiments of the present application, the clamping member 200 and the bending tube 100 can be independently arranged, and there is no direct connection relationship between the two. However, two positioning grooves are provided on the outer wall surface 230, and the positioning grooves are used for positioning and cooperating with the notch edges of the installation grooves 110, so as to determine the relative positions of the clamping member 200 and the bending tube 100 and avoid deviation in the assembly position of the clamping member 200.

[0067] When the clamping member 200 covers the notch of the installation groove 110, the positioning groove is positioned and cooperated with the notch edge of the installation groove 110 to ensure that the clamping member 200 can be assembled to a suitable position in the installation groove 110 under the extrusion of the imaging module 500.

[0068] The bending tube 100 has two traction rope mounting portions, and the traction rope mounting portions are used for mounting traction ropes. By pulling the traction ropes, the bending of the bending tube 100 can be controlled. Along the circumferential direction of the bending tube 100, the installation groove 110 is located between the two traction rope mounting portions, and the distances from the installation groove 110 to the two traction rope mounting portions are the same, and the influence on the two traction rope mounting portions is the same, so as to ensure that the operating feel in the two bending directions of the bending tube 100 is the same.

[0069] An embodiment of the present application provides an insertion portion. Refer to Figure 14 and Figure 15 As shown, it includes the insertion tube provided in the above embodiment, and further includes a front end seat 400. The front end seat 400 is installed at the distal end of the bending tube 100. The front end seat 400 is provided with an imaging module installation channel. When the inner wall surface 210 of the clamping member 200 encloses to form an accommodation cavity 250, the imaging module installation channel is correspondingly communicated with the accommodation cavity 250, and the imaging module 500 in the accommodation cavity 250 can be installed into the imaging module installation channel.

[0070] An embodiment of the present application further provides an endoscope 10, which includes the insertion portion provided in the above embodiment, and further includes a handle 11. Refer to Figure 14 As shown, the proximal end of the insertion portion is connected to the position of the handle 11.

[0071] The endoscope 10 provided by the embodiment of the present application can be a nephroscope, a bronchoscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a nasal endoscope, an oral endoscope, a laryngoscope, a vaginoscope, a laparoscope, an arthroscope, etc. The embodiment of the present application does not specifically limit the type of the endoscope 10.

[0072] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such a process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0073] As described above, this is only a specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. An insertion tube, applied to an endoscope (10), characterized in that, It includes a bent pipe (100) and a clamping member (200). An installation groove (110) is provided on the side wall of the bent pipe (100), and the installation groove (110) axially penetrates through both ends of the bent pipe (100). The clamping member (200) is a sheet-like structure made of a flexible material. The clamping member (200) includes an inner wall surface (210), a first side wall (220), an outer wall surface (230), and a second side wall (240) arranged in sequence along its circumferential direction. Both the first side wall (220) and the second side wall (240) connect the inner wall surface (210) and the outer wall surface (230). When the clamping member (200) covers the notch of the installation groove (110), the outer wall surface (230) faces the installation groove (110), the inner wall surface (210) is used to contact the camera module (500), and the clamping member (200) can be squeezed by the camera module (500) into the installation groove (110) along the radial direction of the bent pipe (100), so that the inner walls of the installation groove (110) are all attached to the outer wall surface (230). The inner wall surface (210) encloses a receiving cavity (250) for assembling the camera module (500), and the first side wall (220) and the second side wall (240) are pressed tightly to isolate the notch of the installation groove (110) from the receiving cavity (250).

2. The insertion tube according to claim 1, wherein The clamping member (200) includes a first sealing portion (260) and a second sealing portion (270) located at both ends in its width direction. The first side wall (220) is located at the first sealing portion (260), and the second side wall (240) is located at the second sealing portion (270). When the first side wall (220) and the second side wall (240) are tightly fitted, the first sealing portion (260) and the second sealing portion (270) are pressed tightly between two opposite positions on the inner wall of the installation groove (110).

3. An insertion tube according to claim 2, characterized in that, The corresponding part of the outer wall surface (230) of the first sealing portion (260) and the corresponding part of the outer wall surface (230) of the second sealing portion (270) are both convexly arranged, so that when the first side wall (220) and the second side wall (240) are tightly fitted, along the circumferential direction of the bent pipe (100), the radial distance between the part of the outer wall surface (230) of the first sealing portion (260) and the second sealing portion (270) exposed outside the notch of the installation groove (110) and the axis of the bent pipe (100) first increases and then decreases, and the edge of the first side wall (220) is aligned with the edge of the second side wall (240).

4. An insertion tube according to claim 1, characterized in that, A protective film (300) is installed in a partial area where the inner wall surface (210) is in contact with the first side wall (220) and a partial area where the inner wall surface (210) is in contact with the second side wall (240). The protective film (300) is a flexible structure. The edges of the protective film (300) are fixed to the inner wall surface (210). The friction coefficient between the protective film (300) and the inner wall surface (210) is less than the friction coefficient between the protective film (300) and the camera module (500).

5. An insertion tube according to claim 4, characterized in that, Along the circumferential direction of the clamping member (200), the width of the partial area where the protective film (300) is provided on the inner wall surface (210) is less than half of the width of the inner wall surface (210).

6. The insertion tube according to claim 1, wherein, A rotating portion (280) is provided on the outer wall surface (230) of the clamping member (200). The clamping member (200) covers the notch of the installation groove (110). The rotating portion (280) is rotatably connected to the bending pipe (100).

7. An insertion tube according to claim 1, wherein, The clamping member (200) and the bending pipe (100) are independent of each other. Two positioning grooves are provided on the outer wall surface (230). The positioning grooves are used for positioning and mating with the notch edge of the installation groove (110). When the clamping member (200) covers the notch of the installation groove (110), the positioning grooves are in positioning and mating with the notch edge of the installation groove (110).

8. An insertion tube according to claim 1, characterized in that, The bending pipe (100) has two towing rope installation portions for installing towing ropes. Along the circumferential direction of the bending pipe (100), the installation groove (110) is located between the two towing rope installation portions, and the distances from the installation groove (110) to the two towing rope installation portions are the same.

9. An insertion part, characterized in that, It includes the insertion pipe according to any one of claims 1-8, and further includes a front end seat (400). The front end seat (400) is installed at the distal end of the bending pipe (100). The front end seat (400) is provided with a camera module installation channel. When an accommodation cavity (250) is formed by enclosing the inner wall surface (210) of the clamping member (200), the camera module installation channel is correspondingly communicated with the accommodation cavity (250).

10. An endoscope (10), characterized in that, It includes an insertion portion according to claim 9.

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