A snake bone assembly, an insertion portion, and an endoscope

Abstract

The present invention discloses a snake bone assembly, an insertion part, and an endoscope, relating to the field of medical devices. The snake bone assembly is used for an endoscope and includes a plurality of snake bone segments and a riveting structure. The plurality of snake bone segments are connected end to end in sequence. The riveting structure is connected between two adjacent snake bone segments and enables the two adjacent snake bone segments to rotate around the axis of the riveting structure. The snake bone assembly has an avoidance space that penetrates the corresponding snake bone segment along a first preset direction to expose the riveting structure. The snake bone segment is correspondingly provided with an avoidance space that can expose the riveting structure. Since the avoidance space realizes the open setting of the riveting structure, it is not restricted by space. Installers can clearly observe the installation conditions of the snake bone segment and the riveting structure, and can align and install more quickly, reducing the installation difficulty and improving the assembly efficiency and riveting success rate of the snake bone assembly.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a snake bone assembly, an insertion part, and an endoscope. Background Art

[0002] With the continuous development of medical technology, endoscopes have been widely used in the diagnosis and treatment of diseases. When using an endoscope, the insertion part of the endoscope needs to be inserted into the patient's body, and the active bending section of the insertion part is pulled by a traction rope to achieve a bending action, and then the orientation of the distal end of the insertion part is adjusted to obtain image information of the target site (such as a lesion).

[0003] In the related art, the active bending section usually adopts a riveted snake bone assembly, and the snake bone assembly connects adjacent snake bones through rivets. The snake bone is usually in a ring structure. When riveting the snake bone, the installer needs to simultaneously squeeze the rivets on the inner and outer sides of the snake bone to achieve the riveting process. However, the internal space of the snake bone is limited, and it is difficult for the installer to directly reach into or observe the inside of the snake bone, which increases the complexity of the riveting operation and thus reduces the assembly efficiency of the snake bone assembly. Even worse, the snake bone may be riveted incorrectly, resulting in a decrease in the yield rate of the snake bone assembly. Summary of the Invention

[0004] In view of the above disadvantages of the related art, the present application provides a snake bone assembly, an insertion part, and an endoscope to solve the above technical problems.

[0005] The present application provides a snake bone assembly for an endoscope. The snake bone assembly includes a plurality of snake bone segments and a riveting structure. The plurality of snake bone segments are sequentially connected end to end. The riveting structure is connected between two adjacent snake bone segments and enables the two adjacent snake bone segments to rotate around the axis of the riveting structure. The snake bone assembly has an avoidance space that penetrates the corresponding snake bone segment along a first preset direction to expose the riveting structure.

[0006] In an embodiment of the present application, the number of the riveting structures is multiple, and the first preset direction is perpendicular to the arrangement direction of the multiple riveting structures.

[0007] In an embodiment of the present application, one of the two adjacent snake bone segments is provided with a first rotating seat, and the remaining one is provided with a second rotating seat. The first rotating seat and the second rotating seat are in rotational cooperation, and the riveting structure is connected between the first rotating seat and the second rotating seat.

[0008] In an embodiment of the present application, the first rotating seat and the second rotating seat are arranged at the axis of the snake bone segment.

[0009] In an embodiment of the present application, the axial direction of the riveting structure is the same as the radial direction of the snake bone segment.

[0010] In an embodiment of the present application, the protruding directions of the first rotating seat and the second rotating seat are the same as the arrangement direction.

[0011] In an embodiment of the present application, the snake bone joint is a sheet-like structure. The snake bone joint is provided with a first through hole, a second through hole, an instrument hole, and a wire harness hole. The first through hole and the second through hole are respectively arranged on opposite sides of the rotation axis of the riveting structure. The instrument hole is used for passing through the instrument tube of the endoscope, and the wire harness hole is used for passing through the wire harness of the endoscope. The first through hole, the second through hole, the instrument hole, and the wire harness hole are spaced apart from each other.

[0012] In an embodiment of the present application, the instrument hole and the wire harness hole are respectively arranged on opposite sides of the connection line between the first through hole and the second through hole, and / or the instrument hole, the wire harness hole, the first through hole, and the second through hole are located on the same circumference of the snake bone joint;

[0013] Alternatively, the instrument hole and the wire harness hole are opened on the connection line between the first through hole and the second through hole.

[0014] In an embodiment of the present application, the riveting structure includes a first riveting member, a second riveting member, and a connecting rod. The connecting rod has a first end and a second end that are far away from each other. Among two adjacent snake bone joints, the first rotating seat is rotationally matched with the first end, the second rotating seat is rotationally matched with the second end, the first riveting member is connected between the first rotating seat and the first end, and the second riveting member is connected between the second rotating seat and the second end.

[0015] In an embodiment of the present application, the axes of the first riveting member and the second riveting member intersect or are parallel.

[0016] In an embodiment of the present application, the number of wire harness holes is multiple, and the multiple wire harness holes are spaced apart from each other.

[0017] In an embodiment of the present application, the snake bone joint is further provided with a third through hole and a fourth through hole. The third through hole and the fourth through hole are respectively arranged on opposite sides of the rotation axis of the second riveting member.

[0018] In an embodiment of the present application, the first through hole, the instrument hole, the second through hole, and the wire harness hole are distributed along the outer edge of the snake bone joint.

[0019] To achieve the above object and other related objects, the present application provides an insertion portion, including the aforementioned snake bone assembly.

[0020] To achieve the above object and other related objects, the present application provides an endoscope, including the aforementioned insertion portion.

[0021] The technical solution adopted by the present invention can achieve the following beneficial effects: The snake bone assembly is formed by connecting multiple snake bone segments end to end. Two adjacent snake bone segments are rotatably arranged relative to each other, and a riveting structure is used to rivet the two adjacent snake bone segments to realize the rotational connection between the snake bone segments. The snake bone segments are correspondingly provided with avoidance spaces, and the avoidance spaces can expose the riveting structure. Since the avoidance spaces realize the open setting of the riveting structure, there is no space constraint, and the installation conditions of the snake bone segments and the riveting structure can be clearly presented to the installers or the acquisition equipment. At the same time, there is a large operating space, which can enable faster alignment installation, reduce the installation difficulty, and improve the assembly efficiency and riveting success rate of the snake bone assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a schematic structural diagram of a snake bone assembly shown in an exemplary embodiment of the present application;

[0024] Figure 2 is a schematic structural diagram of the snake bone assembly from another perspective shown in an exemplary embodiment of the present application;

[0025] Figure 3 is a schematic structural diagram of another snake bone assembly shown in an exemplary embodiment of the present application;

[0026] Figure 4 is a schematic structural diagram of yet another snake bone assembly shown in an exemplary embodiment of the present application;

[0027] Figure 5 is a schematic structural diagram of a snake bone segment shown in an exemplary embodiment of the present application;

[0028] Figure 6 is a schematic structural diagram of another snake bone segment shown in an exemplary embodiment of the present application;

[0029] Figure 7 is a schematic structural diagram of yet another snake bone segment shown in an exemplary embodiment of the present application;

[0030] Figure 8 is a schematic structural diagram of yet another snake bone segment shown in an exemplary embodiment of the present application;

[0031] Figure 9 is a schematic structural diagram of a driving structure shown in an exemplary embodiment of the present application;

[0032] Figure 10 It is a schematic structural diagram of yet another snake bone assembly shown in an exemplary embodiment of the present application;

[0033] Figure 11 It is a schematic structural diagram of yet another snake bone assembly shown in an exemplary embodiment of the present application;

[0034] Figure 12 It is a schematic structural diagram of a snake bone segment shown in another exemplary embodiment of the present application;

[0035] Figure 13 It is a schematic structural diagram of another snake bone segment shown in another exemplary embodiment of the present application;

[0036] Figure 14 It is a schematic structural diagram of an endoscope shown in an exemplary embodiment of the present application.

[0037] In the figure: 1, endoscope; 100, snake bone assembly; 110, snake bone segment; 111, first snake bone segment; 112, second snake bone segment; 113, first rotating seat; 1131, first connecting block; 1132, second connecting block; 114, second rotating seat; 115, first through hole; 1151, first sub-through hole; 1152, second sub-through hole; 116, second through hole; 117, third through hole; 118, fourth through hole; 1191, first mounting hole; 1192, second mounting hole; 1193, first sub-mounting hole; 1194, second sub-mounting hole; 1195, third mounting hole; 1196, fourth mounting hole; 120, riveting structure; 121, first riveting part; 122, second riveting part; 123, connecting rod; 1231, first end; 1232, second end; 130, avoidance space; 140, instrument hole; 150, wire harness hole; 200, insertion part; 300, instrument tube; 400, wire harness. Detailed implementation manners

[0038] In order 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 shall fall within the scope protected by the present invention.

[0039] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0040] In various embodiments of this application, "proximal" and "distal" refer to the relative positions of each component to the user in the usage environment. Among them, the end closer to the user is designated as "proximal", and the end farther from the user is designated as "distal".

[0041] The riveted snake bone assembly connects adjacent snake bones through a rivet structure. The rivet consists of a smooth cylindrical shaft, with a head at one end, and the end opposite to the head is called the tail, and the size of the head is larger than that of the tail. During installation, the tail of the rivet passes through the inside of the snake bone, and the head is inside the snake bone. The installer squeezes the rivet simultaneously on the inner and outer sides of the snake bone, and by applying external force, the tail is upset or bent (i.e., deformed) to make the snake bone completely riveted firmly.

[0042] During this period, the internal space of the snake bone is limited, and it is difficult for the installer's fingers to directly reach in. Moreover, the riveting tool will block the installer's line of sight during riveting, increasing the complexity of the riveting operation, and thus reducing the assembly efficiency of the snake bone assembly. Even worse, the snake bone may be riveted unsuccessfully, resulting in a decrease in the yield rate of the snake bone assembly.

[0043] Nowadays, the prior art has proposed a structure in which the rivet and the snake bone are integrally cut and formed, without the need for assembly. However, the integrally cut and formed rivets have problems such as poor accuracy, large deformation, and low reliability. For example, multiple grooves are cut on the outer periphery of the tube body, and relative rotation is generated by the deformation of the multiple grooves. The size of the snake bone structure is small, and the deformation is likely to cause damage to the snake bone structure. Moreover, after multiple deformations, the snake bone structure will also undergo irreversible plastic deformation, thereby reducing the structural strength and reliability of the snake bone structure.

[0044] This application provides a snake bone assembly 100. Please refer to Figure 1 , the snake bone assembly 100 can be used in the endoscope 1. The snake bone assembly 100 can form the bendable and steerable insertion portion 200 of the endoscope 1.

[0045] The snake bone assembly 100 may include a plurality of snake bone segments 110 and a riveting structure 120, and the riveting structure 120 is connected between two adjacent snake bone segments 110.

[0046] In this embodiment, please continue to refer to Figure 1 , the snake bone segment 110 can be a ring structure, a columnar structure, a sheet structure, etc., and this embodiment does not limit it. The plurality of snake bone segments 110 are connected end to end to have a certain extended length. Please refer to Figure 1 , it can be understood that the number of snake bone segments 110 is plural, such as 2, 3... or even more, which is not limited here. But for the convenience of observation, Figure 1 only the structural schematic diagrams of two snake bone segments 110 are shown. At the same time, adjacent snake bones are rotatably fitted, so that the bending action of the active bending section can be realized. In the application scenario of the endoscope 1, the snake bone assembly 100 drives the relative rotation between the snake bones by transmitting the acting force through the traction rope, so as to realize the bending action of the active bending section. Of course, the snake bone assembly 100 can also rotate along with the human body cavity to adapt to different cavities, and can also realize the bending action of the passive bending section.

[0047] Please continue to refer to Figure 1 , the riveting structure 120 is connected between two adjacent snake bone segments 110 and enables the two adjacent snake bone segments 110 to rotate around the axis of the riveting structure 120. The installation direction of the riveting structure 120 can be the radial direction of the snake bone assembly 100. The riveting structure 120 includes but is not limited to shafts, nails, etc., and this embodiment does not limit it. The riveting structure 120 can rivet two adjacent snake bone segments 110, and the structural strength of the riveting structure 120 is high to improve the structural strength of the snake bone assembly 100. And, this embodiment is no longer like the integral snake bone structure in the prior art. This embodiment does not need to be installed by deformation, the structural strength of the snake bone assembly 100 is guaranteed, and the riveting structure 120 can improve the rotation effect and service life of the snake bone segment 110.

[0048] In addition, please continue to refer to Figure 1 , the snake bone assembly 100 has an avoidance space 130, and the avoidance space 130 penetrates the corresponding snake bone segment 110 along a first preset direction (such as Figure 1 the x direction shown in

[0049] to expose the riveting structure 120. It can be understood that this exposure means that most of the riveting structure 120 is exposed for subsequent observation and use. Of course, the riveting structure 120 can be completely exposed to improve the installation effect. Exemplarily, when the riveting structure 120 is partially exposed, but the installer can bend the corresponding snake bone segment 110 so that the riveting structure 120 can be completely exposed. In some other cases, the first preset direction can be perpendicular to the axial direction of the snake bone assembly 100 (such asFigure 1 The direction shown in the y direction in it). The avoidance space 130 can be formed by through holes, grooves, recesses, or a combination of multiple ones opened in the snake bone joint 110. By setting the avoidance space 130, the riveting structure 120 can be directly exposed within the field of vision of the installer. Moreover, during the installation process, this setting can also obtain a larger installation space, and the installation space of the riveting structure 120 is improved. Among them, the installation space can be the space where the riveting structure 120 extends into the snake bone joint 110. The installer can directly place the riveting structure 120 at the designated position with fingers or tools for subsequent riveting use.

[0050] Exemplarily, as Figure 2 shown, notches are arranged at the mutually approaching ends of two adjacent snake bone joints 110. The notches are close to the riveting structure 120, and the combination of the notches of the two forms the avoidance space 130. The riveting structure 120 can be a rivet. The size, shape, etc. of the avoidance space 130 are all adapted to the rivet, and the rivet can easily enter the inside of the snake bone joint 110 from the avoidance space 130. During the riveting process, the riveting tool can also extend into the inside of the snake bone joint 110 from the avoidance space 130 to realize the operation of simultaneously squeezing the rivet on the inner side and the outer side of the snake bone joint 110. During this period, the installer or the acquisition device can observe the rivet throughout the process to ensure that the rivet can be accurately installed at the designated position each time, so as to improve the installation accuracy and installation efficiency of the rivet. Among them, the acquisition device can be a camera, an optical automatic detection device, etc. The optical automatic detection device can automatically judge the assembly effect of the snake bone assembly 100. Or, the camera can collect the image information of the snake bone assembly 100 and transmit it to the installer for observation.

[0051] It can be understood that the number of the riveting structures 120 is multiple, such as 2, 3... or even more, and this embodiment does not limit it. The first preset direction is perpendicular to the arrangement direction of the multiple riveting structures 120. Among them, the arrangement direction of the multiple riveting structures 120 is the same as the distribution direction of the multiple snake bone joints 110. Furthermore, the arrangement direction of the multiple riveting structures 120 is the same as the extension direction of the snake bone joint 110. Furthermore, the first preset direction can be perpendicular to the extension direction of the snake bone joint 110.

[0052] Furthermore, in one case, the first preset direction can be the radial direction of the snake bone assembly 100 and is perpendicular to the arrangement direction of the multiple riveting structures 120. Therefore, the riveting structure 120 can enter the inside along a certain diameter of the snake bone assembly 100. Compared with other directions, the setting of inserting along the diameter direction of the snake bone assembly 100 can flexibly insert a longer riveting structure 120 and improve the installation space of the riveting structure 120.

[0053] In another case, the first preset direction may be perpendicular to a certain diameter of the snake bone assembly 100 and perpendicular to the arrangement direction of the plurality of riveting structures 120. This setting can make the avoidance space 130 away from the axis of the snake bone assembly 100, shorten the distance between the avoidance space 130 and the installation position of the riveting structure 120, and improve the installation efficiency.

[0054] In some other cases, there is an included angle between the first preset direction and the axis of the snake bone assembly 100. The magnitude of this included angle can be 30°, 45°, 60°, etc., and this embodiment does not limit it. This included angle can make the avoidance space 130 deviate relatively, suitable for the habit of the installer's right hand to exert force, so as to improve the efficiency of the installer. In addition, different included angles can be adapted to different riveting structures 120 and riveting tools, etc., and enable the installer to observe the riveting structure 120 at different angles.

[0055] In this embodiment, please refer to Figure 2 , one of the adjacent two snake bone segments 110 is convexly provided with a first rotating seat 113, and the remaining one is convexly provided with a second rotating seat 114. The first rotating seat 113 and the second rotating seat 114 are rotationally matched, and the riveting structure 120 is connected between the first rotating seat 113 and the second rotating seat 114. The convex settings of the first rotating seat 113 and the second rotating seat 114 can not only increase the distance between the adjacent two snake bone segments 110, further increase the range of the avoidance space 130, so that the installer can install the riveting structure 120 more easily. And, compared with the concave setting, the convex setting can increase the cross-sectional area of the snake bone segment 110 to improve the load-bearing capacity of the snake bone segment 110. In addition, the convexly provided first rotating seat 113 and second rotating seat 114 can play a role in strengthening the structure and improve the structural strength of the snake bone segment 110.

[0056] In some other cases, each snake bone segment 110 may have a plurality of first rotating seats 113 or a plurality of second rotating seats 114. The plurality of first rotating seats 113 and the plurality of second rotating seats 114 correspond to each other and cooperate with each other to improve the rotational stability between the adjacent two snake bone segments 110, which will not be elaborated here.

[0057] In this embodiment, please refer to Figure 3 , the snake bone segment 110 can be a sheet-like structure. For example, the snake bone segment 110 can be a circular sheet-like structure. The sheet-like snake bone segment 110 can avoid the shielding effect of the edge part of the snake bone segment 110 on the inside of the snake bone segment 110 and increase the size of the avoidance space 130.

[0058] In one implementation manner, please continue to refer to Figure 3 and Figure 4, two adjacent snake bone joints 110 are respectively the first snake bone joint 111 and the second snake bone joint 112. The first snake bone joint 111 is convexly provided with a first rotating seat 113, and the second snake bone joint 112 is convexly provided with a second rotating seat 114. One end of the first rotating seat 113 close to the second snake bone joint 112 is provided with a first mounting hole 1191, and one end of the second rotating seat 114 close to the first snake bone joint 111 is provided with a second mounting hole 1192. The first mounting hole 1191 and the second mounting hole 1192 are correspondingly arranged. The riveting structure 120 can be a rivet, and the rivet can pass through the first mounting hole 1191 and the second mounting hole 1192, and the rotational cooperation between the first rotating seat 113 and the second rotating seat 114 can be realized through riveting operation.

[0059] In another embodiment, the first rotating seat 113 and / or the second rotating seat 114 are configured with a first connecting block 1131 and a second connecting block 1132. For the convenience of description, as Figure 5 shown, the following content takes the first rotating seat 113 configured with the first connecting block 1131 and the second connecting block 1132 as an example for introduction. The first connecting block 1131 and the second connecting block 1132 are arranged at intervals, and the first connecting block 1131 is provided with a first sub-mounting hole 1193, and the second connecting block 1132 is provided with a second sub-mounting hole 1194. The first sub-mounting hole 1193 and the second sub-mounting hole 1194 are coaxially arranged. The second rotating seat 114 is arranged between the first connecting block 1131 and the second connecting block 1132, and the axes of the first sub-mounting hole 1193, the second sub-mounting hole 1194 and the second mounting hole 1192 are collinear. The riveting structure 120 can pass through the first sub-mounting hole 1193, the second sub-mounting hole 1194 and the second mounting hole 1192, and the rotational cooperation between the first rotating seat 113 and the second rotating seat 114 can be realized through riveting operation. The first connecting block 1131 and the second connecting block 1132 can fix the opposite ends of the riveting structure 120 and simultaneously provide a supporting force for the riveting structure 120, avoiding the occurrence of shear force inside the riveting structure 120 and causing the riveting structure 120 to bend. This setting can improve the service life and safety of the riveting structure 120.

[0060] Preferably, please refer back to Figure 3 , the protruding directions of the first rotating seat 113 and the second rotating seat 114 are the same as the arrangement direction of the plurality of riveting structures 120, and this direction is as shown by the y direction in Figure 3 . This setting can increase the distance between two adjacent snake bone joints 110 through the protruding settings of the first rotating seat 113 and the second rotating seat 114. Further, along the first preset direction (such as Figure 3In the x - direction shown in the figure, the avoidance space 130 can be arranged between two adjacent snake bone joints 110. For example, the mutually approaching ends of two adjacent snake bone joints 110 are both configured with notches, and the notches form the avoidance space 130. The range of the avoidance space 130 is further increased so that the installer can install the riveting structure 120 more easily.

[0061] In some other cases, one of the first rotating seat 113 and the second rotating seat 114 can be convexly arranged, and the remaining one is concavely arranged. The first rotating seat 113 and the second rotating seat 114 cooperate with each other, and the groove wall of the concavely arranged one can limit the rotation amplitude of the convexly arranged one to play a limiting role, which will not be elaborated here.

[0062] In this embodiment, please refer to Figure 3 and Figure 6 , the first rotating seat 113 and the second rotating seat 114 are arranged at the axis of the snake bone joint 110, and the axis of the snake bone joint 110 can be the axis of the entire snake bone assembly 100. The first rotating seat 113 and the second rotating seat 114 are arranged at the axis of the corresponding snake bone joint 110. Further, the axial direction of the riveting structure 120 is the same as the radial direction of the snake bone joint 110. This setting can make the rotation axis between the first rotating seat 113 and the second rotating seat 114 pass through the axis of the snake bone joint 110 to ensure the rotation effect between the first rotating seat 113 and the second rotating seat 114 and avoid the situation of rotational deviation between the snake bone joints 110. Moreover, the first rotating seat 113 and the second rotating seat 114 have a supporting effect. The center of gravity of the snake bone joint 110 is distributed on the axis of the snake bone joint 110, and the first rotating seat 113 and the second rotating seat 114 can stably support the snake bone joint 110 to avoid its deviation and other situations.

[0063] In addition, please continue to refer to Figure 6 , the snake bone joint 110 can also be provided with other holes, including but not limited to the wire harness hole 150, the instrument hole 140, etc. The first rotating seat 113 and the second rotating seat 114 are arranged at the axis, and other holes can be arranged around the first rotating seat 113 and the second rotating seat 114, which is convenient for the installer to pass the wire harness 400 through the wire harness hole 150, the instrument tube 300 through the instrument hole 140, and the subsequent maintenance and recovery of the wire harness 400 and the instrument tube 300, etc., improving the assembly efficiency of the snake bone assembly 100.

[0064] In one implementation manner, please continue to refer to Figure 6, the snake bone joint 110 is provided with a first through hole 115, a second through hole 116, an instrument hole 140, and a wire harness hole 150. The first through hole 115, the second through hole 116, the instrument hole 140, and the wire harness hole 150 can all be rectangular holes, circular holes, triangular holes, etc., and this embodiment does not limit them. The first through hole 115, the second through hole 116, the instrument hole 140, and the wire harness hole 150 are distributed at intervals. The instrument hole 140 is used to pass through the instrument tube 300 of the endoscope 1, and the wire harness hole 150 is used to pass through the wire harness 400 of the endoscope 1. Further, the diameter of the instrument hole 140 can be larger than the diameter of the wire harness hole 150, which enables a larger instrument tube 300 to be inserted into the instrument hole 140. The first through hole 115 and the second through hole 116 are used to pass through the traction ropes. The sheet-like snake bone joint 110 can be provided with multiple holes for different purposes, and the hole walls play a constraining role to improve the use effect of the snake bone joint 110.

[0065] On the basis that the snake bone joint 110 is of a sheet-like structure, there is a gap between two adjacent snake bone joints 110, and they are rotationally matched through the first rotating seat 113 and the second rotating seat 114. Coupled with the connection of the riveting structure 120, two adjacent sheet-like snake bone joints 110 can rotate around the axis of the riveting structure 120. Please refer to Figure 6 , the first through hole 115 and the second through hole 116 are respectively arranged on opposite sides of the rotation axis of the riveting structure 120. The first through hole 115 and the second through hole 116 respectively pass through the traction ropes. Through the stretching and relaxation operations of the traction ropes, the rotational effect of the snake bone joint 110 towards the first through hole 115 or the second through hole 116 is achieved, so as to achieve the effect of active bending.

[0066] Preferably, the first through hole 115, the instrument hole 140, the second through hole 116, and the wire harness hole 150 are distributed along the outer edge of the snake bone joint 110. The first through hole 115, the instrument hole 140, the second through hole 116, and the wire harness hole 150 do not affect the first rotating seat 113 and the second rotating seat 114 located at the center of the snake bone joint 110. This setting can avoid the interference of the holes with the first rotating seat 113 and the second rotating seat 114, and avoid the stress concentration of the first rotating seat 113 and the second rotating seat 114, which may cause structural damage, and improve the use safety of the snake bone assembly 100.

[0067] In this embodiment, the instrument hole 140 and the wire harness hole 150 are respectively arranged on opposite sides of the line connecting the first through hole 115 and the second through hole 116, and / or, the instrument hole 140, the wire harness hole 150, the first through hole 115, and the second through hole 116 are located on the same circumference of the snake bone joint 110. This setting can improve the driving effect of the snake bone assembly 100 and the use safety of the snake bone assembly 100.

[0068] In one implementation manner, please refer toFigure 6 , the instrument hole 140 and the wire harness hole 150 are respectively arranged on the opposite sides of the connection line between the first through hole 115 and the second through hole 116. Moreover, the instrument tube 300 and the wire harness 400 can be respectively arranged on the rotation axis. As the snake bone joint 110 reciprocates and bends, this arrangement can prevent the instrument tube 300 and the wire harness 400 from being squeezed or stretched, thereby reducing their service life. In addition, the instrument tube 300 and the wire harness 400 can support the snake bone joint 110, maintain the original state of the snake bone assembly 100, prevent the snake bone assembly 100 from bending arbitrarily, which may lead to poor stability of the insertion part 200 of the endoscope 1, and improve the use safety of the snake bone assembly 100.

[0069] In another embodiment, please refer to Figure 7 , the instrument hole 140, the wire harness hole 150, the first through hole 115, and the second through hole 116 are located on the same circumference of the snake bone joint 110. Among them, the center of this circumference can be located on the axis of the snake bone assembly 100. This arrangement can ensure that the driving effect of the traction rope on the snake bone joint 110 is more uniform and balanced, and can also drive the instrument tube 300 and the wire harness 400 evenly, preventing excessive deformation of one of them, and improving the safety of the snake bone assembly 100. Further, the instrument hole 140, the wire harness hole 150, the first through hole 115, and the second through hole 116 are equidistantly spaced. This arrangement can uniformly increase the distance between adjacent two, facilitating the installer for installation.

[0070] In another embodiment, the instrument hole 140 and the wire harness hole 150 are respectively arranged on the opposite sides of the connection line between the first through hole 115 and the second through hole 116, and the instrument hole 140, the wire harness hole 150, the first through hole 115, and the second through hole 116 are located on the same circumference of the snake bone joint 110. This arrangement can improve the driving effect and use safety of the snake bone assembly 100, and will not be elaborated here too much.

[0071] In another case, please refer to Figure 8, the instrument hole 140 and the wire harness hole 150 are opened on the line connecting the first through hole 115 and the second through hole 116. It can be understood that, to ensure the driving effect of the traction rope on the snake bone assembly 100, there is an included angle between the line connecting the first through hole 115 and the second through hole 116 and the axis of the riveting structure 120, such as 30°, 60°, or 90°, etc., and this embodiment does not limit it. Further, the line connecting the first through hole 115 and the second through hole 116 can be perpendicular to the axis of the riveting structure 120. Therefore, this setting can ensure that the opening positions of the instrument hole 140 and the wire harness hole 150 are not on the axis of the riveting structure 120 either. The instrument tube 300 and the wire harness 400 will not block both ends of the riveting structure 120, that is, after the instrument tube 300 and the wire harness 400 are installed, the installer performs the riveting operation on the riveting structure 120, and it will not be impossible to rivet due to the blockage of the instrument tube 300 and the wire harness 400, improving the assembly flexibility of the snake bone assembly 100.

[0072] In another embodiment, please refer to Figure 9 and Figure 10 , the riveting structure 120 can include a first riveting member 121, a second riveting member 122, and a connecting rod 123. Among them, the first riveting member 121 and the second riveting member 122 can be rivets, etc. As Figure 11 shown, the connecting rod 123 can be a prism or a cylinder, etc., and this embodiment does not limit it. The connecting rod 123 has a first end 1231 and a second end 1232 that are far away from each other. In two adjacent snake bone joints 110, the first rotating seat 113 is rotationally matched with the first end 1231, and the second rotating seat 114 is rotationally matched with the second end 1232. The first riveting member 121 is connected between the first rotating seat 113 and the first end 1231, and the second riveting member 122 is connected between the second rotating seat 114 and the second end 1232. Exemplarily, third mounting holes 1195 and fourth mounting holes 1196 are respectively opened at opposite ends of the connecting rod 123. The third mounting hole 1195 is correspondingly arranged with the first mounting hole 1191 of the first rotating seat 113, and the fourth mounting hole 1196 is correspondingly arranged with the second mounting hole 1192 of the second rotating seat 114. The first riveting member 121 passes through the first mounting hole 1191 and the third mounting hole 1195, and the second riveting member 122 passes through the second mounting hole 1192 and the fourth mounting hole 1196, and a riveting operation is performed on the first riveting member 121 and the second riveting member 122 to enable rotational cooperation between the first rotating seat 113 and the connecting rod 123, and rotational cooperation between the second rotating seat 114 and the connecting rod 123. This setting can significantly improve the rotational effect and the range of use of the snake bone assembly 100, so as to achieve a larger rotational range or more directions of the snake bone assembly 100.

[0073] It is understandable that the first rotating seat 113 and / or the second rotating seat 114 may be configured with a first connecting block 1131 and a second connecting block 1132. The end of the connecting rod 123 may be inserted between the first connecting block 1131 and the second connecting block 1132. Furthermore, the first connecting block 1131 and the second connecting block 1132 may support the opposite ends of the first riveting member 121 and / or the second riveting member 122 to improve the service life and safety of the riveting structure 120, which will not be elaborated here too much.

[0074] In this embodiment, the axes of the first riveting member 121 and the second riveting member 122 intersect or are parallel. In one implementation, please refer back to Figure 9 , the axes between the first riveting member 121 and the second riveting member 122 intersect, that is, the rotation directions of the first riveting member 121 and the second riveting member 122 can be configured in different directions. Exemplarily, the rotation direction between the first rotating seat 113 and the connecting rod 123 can be a first direction, and the first direction is set around the axis of the first riveting member 121. The rotation direction between the second rotating seat 114 and the connecting rod 123 can be a second direction, and the second direction is set around the axis of the second riveting member 122. Since the axes between the first riveting member 121 and the second riveting member 122 intersect, there is an angle between the first direction and the second direction, and the angle can be 30°, 60°, or 90°, etc., which is not limited in this embodiment. This setting enables the snake bone assembly 100 to achieve two-axis four-way bending, and the insertion portion 200 to improve the adaptation range of the insertion portion 200.

[0075] Furthermore, please refer to Figure 12, the snake bone joint 110 is further provided with a third through hole 117 and a fourth through hole 118, and the third through hole 117 and the fourth through hole 118 are respectively arranged on opposite sides of the rotation axis of the second riveting member 122. The third through hole 117 and the fourth through hole 118 are used for threading a traction rope, and the traction rope can drive the snake bone joint 110 to rotate around the second riveting member 122. Exemplarily, two adjacent snake bone joints 110 are respectively a first snake bone joint 111 and a second snake bone joint 112. The first snake bone joint 111 is convexly provided with a first rotating seat 113, and the second snake bone joint 112 is convexly provided with a second rotating seat 114. Relative to the second snake bone joint 112, the first traction rope passing through the first through hole 115 and the second traction rope passing through the second through hole 116 can drive the first snake bone joint 111 to rotate around the axis of the first riveting member 121, and the driving directions of the first traction rope and the second traction rope can be opposite, that is, the first direction and its opposite direction. Relative to the second snake bone joint 112, the third traction rope passing through the third through hole 117 and the fourth traction rope passing through the fourth through hole 118 can drive the first snake bone joint 111 to rotate around the axis of the second riveting member 122, and the driving directions of the third traction rope and the fourth traction rope can be opposite, that is, the second direction and its opposite direction. The axes of the first riveting member 121 and the second riveting member 122 intersect, so there is an included angle between the first direction and the second direction. This setting can enable the snake bone assembly 100 to achieve two-axis four-direction bending, and the insertion portion 200 to improve the adaptation range of the insertion portion 200.

[0076] Preferably, please refer to Figure 13 , the instrument hole 140 and the wire harness hole 150 are respectively arranged on opposite sides of the connection line between the first through hole 115 and the second through hole 116, and the instrument hole 140 and the wire harness hole 150 are respectively arranged on opposite sides of the connection line between the third through hole 117 and the fourth through hole 118. In other words, the instrument hole 140 and the wire harness hole 150 are not arranged on the connection line between the first through hole 115 and the second through hole 116, nor are they arranged on the connection line between the third through hole 117 and the fourth through hole 118. This setting can prevent the instrument tube 300 and the wire harness 400 from reciprocatingly bending with the snake bone joint 110, thereby reducing their service life. In addition, the instrument tube 300 and the wire harness 400 can support the snake bone joint 110, maintain the original state of the snake bone assembly 100, prevent the snake bone assembly 100 from bending arbitrarily, resulting in poor stability of the insertion portion 200 of the endoscope 1, and improve the use safety of the snake bone assembly 100.

[0077] Preferably, the number of wire harness holes 150 can be multiple, such as 2, 3,... or even more, and this embodiment does not limit. The multiple wire harness holes 150 are arranged at intervals. The multiple wire harness holes 150 arranged at intervals can respectively accommodate multiple wire harnesses 400, so that the multiple wire harnesses 400 are separated from each other. This setting can avoid the situation of mutual entanglement between the multiple wire harnesses 400, and can also solve the problem of stress concentration caused by the over-large size of a single wire harness hole 150.

[0078] In another embodiment, the axes of the first riveting member 121 and the second riveting member 122 are parallel. Therefore, the rotation directions of the first rotating seat 113 and the connecting rod 123 and the rotation direction of the second rotating seat 114 and the connecting rod 123 are generally the same. This setting can enable the snake bone assembly 100 to rotate in multiple segments in a certain direction, improving the rotation effect and rotation amplitude of the snake bone assembly 100. In addition, this setting can also increase the distance between two adjacent snake bone joints 110, further increasing the size of the avoidance space 130 to improve the installation efficiency of the snake bone assembly 100.

[0079] To achieve the above and other related purposes, the present application provides an insertion part 200. Please refer to Figure 14 , the insertion part 200 includes the aforementioned snake bone assembly 100. In this way, the insertion part 200 has the beneficial effects of any of the foregoing solutions, and will not be elaborated herein.

[0080] To achieve the above and other related purposes, the present application provides an endoscope 1. Please refer to Figure 14 , the endoscope 1 includes the aforementioned insertion part 200. In this way, the endoscope 1 has the beneficial effects of any of the foregoing solutions, and will not be elaborated herein. The endoscope 1 in the embodiments 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.

[0081] The technical solution adopted by the present invention can achieve the following beneficial effects: The snake bone assembly 100 is formed by connecting multiple snake bone joints 110 end to end. Two adjacent snake bone joints 110 are rotatably arranged relative to each other, and the riveting structure 120 rivets two adjacent snake bone joints 110 to realize the rotational connection between the snake bone joints 110. The snake bone joints 110 are correspondingly provided with avoidance spaces 130, and the avoidance spaces 130 can expose the riveting structure 120. Since the avoidance spaces 130 realize the open setting of the riveting structure 120, there is no space constraint. The installation conditions of the snake bone joints 110 and the riveting structure 120 can be clearly presented to the installers or the acquisition equipment, and at the same time, there is a large operating space, so that the alignment installation can be carried out more quickly, reducing the installation difficulty and improving the assembly efficiency and riveting success rate of the snake bone assembly 100.

[0082] It should be noted that, in this document, the terms "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising that element.

[0083] In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0084] As described above, the above are only specific embodiments 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. A snake bone component for an endoscope, characterized in that Comprising: A plurality of snake bone joints, the plurality of snake bone joints are connected end to end in sequence. One of the adjacent two snake bone joints is provided with a first rotating seat in a protruding manner, and the remaining one is provided with a second rotating seat in a protruding manner. The first rotating seat and the second rotating seat are rotationally matched, and the first rotating seat and the second rotating seat are arranged at the axis of the snake bone joint; And A riveting structure, the riveting structure is connected between the first rotating seat and the second rotating seat, and enables the adjacent two snake bone joints to rotate around the axis of the riveting structure; Wherein, the snake bone assembly has an avoidance space, and the avoidance space penetrates through the corresponding snake bone joint along a first preset direction to expose the riveting structure.

2. The snake bone assembly according to claim 1, characterized in that, The number of the riveting structures is multiple, and the first preset direction is perpendicular to the arrangement direction of the multiple riveting structures.

3. The snake bone assembly according to claim 2, wherein, The axial direction of the riveting structure is the same as the radial direction of the snake bone joint; And / or, the protruding directions of the first rotating seat and the second rotating seat are the same as the arrangement direction.

4. The snake bone assembly according to claim 3, characterized in that, The snake bone joint is a sheet-like structure. The snake bone joint is provided with a first through hole, a second through hole, an instrument hole and a wire harness hole. The first through hole and the second through hole are respectively arranged on opposite sides of the rotation axis of the riveting structure. The instrument hole is used for threading an instrument tube of an endoscope, and the wire harness hole is used for threading a wire harness of an endoscope. The first through hole, the second through hole, the instrument hole and the wire harness hole are spaced apart from each other.

5. The snake bone component according to claim 4, wherein The instrument hole and the wire harness hole are respectively arranged on opposite sides of the line connecting the first through hole and the second through hole, and / or, the instrument hole, the wire harness hole, the first through hole and the second through hole are located on the same circumference of the snake bone joint; Or, the instrument hole and the wire harness hole are opened on the line connecting the first through hole and the second through hole.

6. The snake bone component according to claim 4, wherein, The riveting structure includes a first riveting part, a second riveting part and a connecting rod. The connecting rod has a first end and a second end that are far away from each other. In two adjacent snake bone joints, the first rotating seat is rotationally matched with the first end, the second rotating seat is rotationally matched with the second end, the first riveting part is connected between the first rotating seat and the first end, and the second riveting part is connected between the second rotating seat and the second end.

7. The snake bone assembly according to claim 6, wherein The axes of the first riveting part and the second riveting part intersect or are parallel; And / or, the number of the wire harness holes is multiple, and the multiple wire harness holes are spaced apart from each other; And / or, the snake bone joint is further provided with a third through hole and a fourth through hole, and the third through hole and the fourth through hole are respectively arranged on opposite sides of the rotation axis of the second riveting part; And / or, the first through hole, the instrument hole, the second through hole and the wire harness hole are distributed along the outer edge of the snake bone joint.

8. An insertion part, characterized in that, Comprising the snake bone assembly according to any one of claims 1-7.

9. An endoscope, characterized in that, Comprising the insertion part according to claim 8.

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