Snake bone assembly, insertion part and endoscope

Abstract

The invention discloses a snake bone assembly, an insertion part and an endoscope, and relates to the field of medical instruments, the snake bone assembly is used for the endoscope, the snake bone assembly comprises a plurality of snake bone joints and a riveting structure, the plurality of snake bone joints are sequentially connected end to end, the riveting structure is connected between two adjacent snake bone joints, and the two adjacent snake bone joints rotate around the axis of the riveting structure; the snake bone assembly is provided with an avoiding space, the avoiding space penetrates through the corresponding snake bone joint in the first preset direction, and the riveting structure is exposed. The snake joint is correspondingly provided with an avoiding space, and the avoiding space can enable the riveting structure to be exposed. Due to the fact that the avoiding space achieves open arrangement of the riveting structure, space constraint is avoided, installation personnel can clearly observe the installation condition of the snake bone joint and the riveting structure, alignment installation can be faster, the installation difficulty is reduced, and the assembling efficiency and the riveting success rate of the snake bone assembly are improved.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, and in particular to a snake bone component, 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 bending action, and then the direction of the distal end of the insertion part is adjusted to obtain image information of the target part (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 uses rivets to connect adjacent snake bones. The snake bone is usually a ring structure. When riveting the snake bone, the installer needs to squeeze the rivet on the inside and outside of the snake bone at the same time to realize 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 reduces the assembly efficiency of the snake bone assembly. What's more, the snake bone may fail to be riveted, resulting in a decrease in the yield rate of the snake bone assembly. Summary of the invention

[0004] In view of the shortcomings of the above related technologies, 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, which is used for an endoscope. The snake bone assembly includes a plurality of snake bone joints and a riveted structure. The plurality of snake bone joints are connected end to end in sequence. The riveted structure is connected between two adjacent snake bone joints and enables the two adjacent snake bone joints to rotate around the axis of the riveted structure. The snake bone assembly has an avoidance space, which passes through the corresponding snake bone joint along a first preset direction to expose the riveted structure.

[0006] In one embodiment of the present application, there are multiple riveted structures, and the first preset direction is perpendicular to the arrangement direction of the multiple riveted structures.

[0007] In one embodiment of the present application, one of two adjacent snake bone joints is protruded with a first rotating seat, and the remaining one is protruded with a second rotating seat. The first rotating seat and the second rotating seat are rotatably matched, and a riveted structure is connected between the first rotating seat and the second rotating seat.

[0008] In one embodiment of the present application, the first rotating seat and the second rotating seat are disposed at the axis of the serpentine segment.

[0009] In one embodiment of the present application, the axial direction of the riveted structure is in the same direction as the radial direction of the snake joint.

[0010] In one embodiment of the present application, the protruding direction of the first rotating seat and the second rotating seat is in the same direction as the arrangement direction.

[0011] In one embodiment of the present application, the snake bone joint is a sheet-like structure, and is provided with a first through hole, a second through hole, an instrument hole, and a wiring harness hole. The first through hole and the second through hole are arranged on opposite sides of the rotation axis of the riveted structure. The instrument hole is used to pass the instrument tube of the endoscope, and the wiring harness hole is used to pass the wiring harness of the endoscope. The first through hole, the second through hole, the instrument hole, and the wiring harness hole are spaced apart.

[0012] In one embodiment of the present application, the instrument hole and the harness hole are disposed on opposite sides of a line between the first through hole and the second through hole, and / or the instrument hole, the harness hole, the first through hole and the second through hole are located on the same circumference of the serpentine segment; Alternatively, the instrument hole and the harness hole are provided on a line connecting the first through hole and the second through hole.

[0013] In one embodiment of the present application, the riveted structure includes a first rivet, a second rivet and a connecting rod, the connecting rod having a first end and a second end that are far away from each other, and in two adjacent snake bone joints, the first rotating seat is rotationally matched with the first end, and the second rotating seat is rotationally matched with the second end, the first rivet is connected between the first rotating seat and the first end, and the second rivet is connected between the second rotating seat and the second end.

[0014] In one embodiment of the present application, the axes of the first rivet component and the second rivet component intersect or are parallel.

[0015] In one embodiment of the present application, there are multiple harness holes, and the multiple harness holes are arranged at intervals.

[0016] In one embodiment of the present application, 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 provided on opposite sides of the rotation axis of the second rivet member.

[0017] In one embodiment of the present application, the first through hole, the instrument hole, the second through hole, and the harness hole are distributed along the outer edge of the serpentine segment.

[0018] To achieve the above objectives and other related objectives, the present application provides an insertion portion, including the aforementioned snake bone assembly.

[0019] To achieve the above-mentioned purpose and other related purposes, the present application provides an endoscope, including the aforementioned insertion portion.

[0020] The technical solution adopted by the present invention can achieve the following beneficial effects: the snake bone assembly is composed of a plurality of snake bone sections connected end to end. Two adjacent snake bone sections are arranged to rotate with each other, and the riveted structure rivets the two adjacent snake bone sections to achieve a rotational connection between the snake bone sections. An avoidance space is provided corresponding to the snake bone section, and the avoidance space allows the riveted structure to be exposed. Since the avoidance space realizes the open setting of the riveted structure, it will not be constrained by space, and the installation status of the snake bone section and the riveted structure can be clearly presented to the installer or the collection equipment, and at the same time, it has a larger operating space, so that the installation can be more quickly aligned, reducing the difficulty of installation, and improving the assembly efficiency and riveting success rate of the snake bone assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a schematic structural diagram of a snake bone assembly shown in an exemplary embodiment of the present application; Figure 2 is a schematic structural diagram of a snake bone assembly from another perspective shown in an exemplary embodiment of the present application; Figure 3 is a schematic structural diagram of another snake bone assembly shown in an exemplary embodiment of the present application; Figure 4 is a schematic structural diagram of another snake bone assembly shown in an exemplary embodiment of the present application; Figure 5 is a schematic structural diagram of a snake bone joint shown in an exemplary embodiment of the present application; Figure 6 is a schematic structural diagram of another snake bone joint shown in an exemplary embodiment of the present application; Figure 7 is a schematic structural diagram of another snake bone joint shown in an exemplary embodiment of the present application; Figure 8 is a schematic structural diagram of yet another snake bone joint shown in an exemplary embodiment of the present application; Fig. 9 is a schematic structural diagram of a driving structure shown in an exemplary embodiment of the present application; Fig.10 is a schematic structural diagram of yet another snake bone assembly shown in an exemplary embodiment of the present application; Fig.11is a schematic structural diagram of yet another snake bone assembly shown in an exemplary embodiment of the present application; Fig.12 is a schematic structural diagram of a snake bone joint shown in another exemplary embodiment of the present application; Fig.13 is a schematic structural diagram of another snake bone joint shown in another exemplary embodiment of the present application; Fig.14 It is a schematic diagram of the structure of an endoscope shown in an exemplary embodiment of the present application.

[0023] In the figure: 1, endoscope; 100, snake bone assembly; 110, snake bone joint; 111, first snake bone joint; 112, second snake bone joint; 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 through hole; 1193, third through hole; 1194, fourth through hole; 1195, first mounting hole; 1196, first through hole; 1197, third through hole; 1198, fourth through hole; 1199, first mounting hole; 1191, first mounting hole; 1191, first through hole; 1199, second through hole; 1191, first through hole; 1192, second through hole; 1193, third through hole; 1194, fourth through hole; 1195, first mounting hole; 1196, first through hole; 1197, third through hole; 1198, fourth through hole; 1199, first mounting hole; 1191, first through hole; 1199, first through hole; 1191, first through hole; 1192, second through hole; 1193, first through hole; 1194, second through hole; 1195, first through hole; 1196, first through hole; 1197, third through hole; 1198, fourth through hole; 1199, first mounting hole; 1199, first through hole; 1199, first through hole; 1199, first through hole; 1199, first through hole; 1199 192, second mounting hole; 1193, first sub-mounting hole; 1194, second sub-mounting hole; 1195, third mounting hole; 1196, fourth mounting hole; 120, riveted structure; 121, first rivet; 122, second rivet; 123, connecting rod; 1231, first end; 1232, second end; 130, avoidance space; 140, instrument hole; 150, harness hole; 200, insertion portion; 300, instrument tube; 400, harness. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0025] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one 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 specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0026] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein 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".

[0027] The riveted snake bone assembly connects adjacent snake bones through a rivet structure. The rivet is composed of a smooth cylindrical shaft with a head at one end and a tail at the other end opposite to the head. The head size is larger than the tail size. During installation, the tail of the rivet is passed through the inside of the snake bone, and the head is inside the snake bone. The installer squeezes the rivet on the inside and outside of the snake bone at the same time, and the tail is upset or bent (i.e. deformed) by external force, so that the snake bone is completely riveted and firmly connected.

[0028] During this period, the internal space of the snake bone is limited, and it is difficult for the installer to directly insert his fingers. The riveting tools will block the installer's sight during riveting, which increases the complexity of the riveting operation and reduces the assembly efficiency of the snake bone component. What's more, the snake bone may fail to rivet, resulting in a decrease in the yield rate of the snake bone component.

[0029] At present, the prior art has proposed a structure in which the rivet and the snake bone are cut and formed in one piece, and no assembly is required. However, the rivet formed in one piece has problems such as poor precision, large deformation, and low reliability. For example, it is a structure in which multiple grooves are cut on the periphery of the tube body, and the multiple grooves are deformed to produce relative rotation. The size of the snake bone structure is small, and deformation can easily cause the snake bone structure to be damaged. Moreover, after multiple deformations, the snake bone structure will also undergo irreversible plastic deformation, which will lead to a decrease in the structural strength and reliability of the snake bone structure.

[0030] The present application provides a snake bone assembly 100, see Figure 1 The snake assembly 100 can be used in the endoscope 1. The snake assembly 100 can constitute the bendable and guided insertion portion 200 of the endoscope 1.

[0031] The snake bone assembly 100 may include a plurality of snake bone joints 110 and a rivet structure 120 , wherein the rivet structure 120 connects two adjacent snake bone joints 110 .

[0032] In this example, see Continue Figure 1 The snake bone segment 110 can be a ring structure, a columnar structure, or a sheet structure, etc., which is not limited in this embodiment. A plurality of snake bone segments 110 are connected end to end to have a certain extension length. Figure 1 It is understandable that the number of the snake bone nodes 110 is multiple, such as 2, 3... or even more, which is not limited here. But for the convenience of observation, Figure 1Only the structural schematic diagram of two snake bone sections 110 is shown. At the same time, the adjacent snake bones are rotated to cooperate, 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 force through the traction rope, thereby realizing the bending action of the active bending section. Of course, the snake bone assembly 100 can also rotate with the human body cavity to adapt to different cavities, and can also realize the bending action of the passive bending section.

[0033] See Continue Figure 1 , the riveting structure 120 is connected between two adjacent snake bone sections 110, and enables the two adjacent snake bone sections 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 an axis, a nail, etc., and this embodiment does not limit it. The riveting structure 120 can rivet two adjacent snake bone sections 110, and the structural strength of the riveting structure 120 is high to improve the structural strength of the snake bone assembly 100. In addition, this embodiment is no longer like the one-piece snake bone structure in the prior art. This embodiment does not need to be installed by deformation, and the structural strength of the snake bone assembly 100 is guaranteed. The riveting structure 120 can improve the rotation effect and service life of the snake bone section 110.

[0034] Otherwise, see Continue Figure 1 The snake bone assembly 100 has an escape space 130, and the escape space 130 is along a first preset direction (such as Figure 1 The rivet structure 120 is exposed by the rivet joint 110 (shown in the x direction in FIG. 1 ). It is understood that the exposure means that most of the rivet structure 120 is exposed for subsequent observation and use. Of course, the rivet structure 120 can be completely exposed to improve the installation effect. For example, the rivet structure 120 is partially exposed, but the installer can bend the corresponding serpentine joint 110 to allow the rivet structure 120 to be completely exposed.

[0035] In some other cases, the first preset direction may be perpendicular to the axial direction of the snake bone component 100 (eg Figure 1 The avoidance space 130 may be formed by a through hole, a groove, a depression or a combination thereof provided in the snake bone joint 110. By providing the avoidance space 130, the riveted structure 120 may be directly exposed to the field of vision of the installer. Moreover, during the installation process, the arrangement may also provide a larger installation space, and the installation space of the riveted structure 120 may be improved. The installation space may be the space where the riveted structure 120 extends into the snake bone joint 110. The installer may directly place the riveted structure 120 at a designated position by fingers or tools for subsequent riveting.

[0036] For example, Figure 2 As shown, the ends of two adjacent snake bone joints 110 that are close to each other are both provided with notches, the notches are close to the riveting structure 120, and the notches of the two are combined to form an escape space 130. The riveting structure 120 can be a rivet, and the size and shape of the escape space 130 are adapted to the rivet, and the rivet can easily enter the inside of the snake bone joint 110 from the escape space 130. During the riveting process, the riveting tool can also extend into the inside of the snake bone joint 110 from the escape space 130 to achieve the operation of squeezing the rivet on the inside and outside of the snake bone joint 110 at the same time. 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 to the specified 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., and the optical automatic detection device can automatically determine the assembly effect of the snake bone assembly 100. Alternatively, the camera can collect image information of the snake bone assembly 100 and transmit it to the installer for observation.

[0037] It is understandable that the number of the riveted structures 120 is multiple, such as 2 or 3... or even more, and this embodiment does not limit it. The first preset direction is perpendicular to the arrangement direction of the multiple riveted structures 120. Among them, the arrangement direction of the multiple riveted structures 120 is in the same direction as the distribution direction of the multiple snake bone joints 110, and then the arrangement direction of the multiple riveted structures 120 is in the same direction as the extension direction of the snake bone joints 110, and then the first preset direction can be perpendicular to the extension direction of the snake bone joints 110.

[0038] Further, in one case, the first preset direction may be the radial direction of the snake-bone component 100, and is perpendicular to the arrangement direction of the plurality of riveted structures 120. Therefore, the riveted structure 120 can enter the interior along a certain diameter of the snake-bone component 100. Compared with other directions, the arrangement of inserting along the diameter direction of the snake-bone component 100 can flexibly insert a longer length of the riveted structure 120, thereby increasing the installation space of the riveted structure 120.

[0039] In another case, the first preset direction can be perpendicular to a certain diameter of the snake bone component 100 and perpendicular to the arrangement direction of the plurality of riveted structures 120. This setting can make the avoidance space 130 away from the axis of the snake bone component 100, shorten the distance between the avoidance space 130 and the installation position of the riveted structure 120, and improve the installation efficiency.

[0040] In some other cases, there is an angle between the first preset direction and the axis of the snake bone component 100, and the angle can be 30°, 45°, 60°, etc., which is not limited in this embodiment. The angle can make the avoidance space 130 relatively deviate, which is suitable for the installer's habit of exerting force with the right hand, so as to improve the efficiency of the installer. In addition, different angles can adapt to different riveting structures 120 and riveting tools, etc., and enable the installer to observe the riveting structure 120 at different angles.

[0041] In this example, see Figure 2 , one of the two adjacent snake bone joints 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 rotatably matched, and the riveted structure 120 is connected between the first rotating seat 113 and the second rotating seat 114. The raised setting of the first rotating seat 113 and the second rotating seat 114 can not only increase the distance between the two adjacent snake bone joints 110, but also further increase the range of the avoidance space 130, so that the installer can more easily install the riveted structure 120. Moreover, compared with the recessed setting, the raised setting can increase the cross-sectional area of ​​the snake bone joint 110 to increase the load capacity of the snake bone joint 110. In addition, the raised first rotating seat 113 and the second rotating seat 114 can play a role in strengthening the structure and improve the structural strength of the snake bone joint 110.

[0042] In some other cases, each snake bone joint 110 can have multiple first rotating seats 113 or multiple second rotating seats 114. The multiple first rotating seats 113 and the multiple second rotating seats 114 correspond to each other one by one and cooperate with each other to improve the rotation stability between two adjacent snake bone joints 110, which will not be elaborated here.

[0043] In this example, see Figure 3 The snake joint 110 may be a sheet-like structure, for example, the snake joint 110 may be a round sheet-like structure. The sheet-like structure of the snake joint 110 can avoid the shielding effect of the edge of the snake joint 110 on the inside of the snake joint 110, thereby increasing the size of the avoidance space 130.

[0044] In one embodiment, please refer to Figure 3 as well as 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 provided with a first rotating seat 113, and the second snake bone joint 112 is provided with a second rotating seat 114. The first rotating seat 113 is provided with a first mounting hole 1191 at one end close to the second snake bone joint 112, and the second rotating seat 114 is provided with a second mounting hole 1192 at one end close to the first snake bone joint 111, and the first mounting hole 1191 and the second mounting hole 1192 are provided correspondingly. The riveting structure 120 can be a rivet, which can be inserted into 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 is realized through the riveting operation.

[0045] 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, Figure 5 As shown, the following content is introduced by taking the first rotating seat 113 as an example in which the first connecting block 1131 and the second connecting block 1132 are configured. 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, and the first sub-mounting hole 1193 and the second sub-mounting hole 1194 are arranged coaxially. 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 colinear. The riveting structure 120 can be penetrated in 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 is realized through the riveting operation. The first connecting block 1131 and the second connecting block 1132 can fix the opposite ends of the riveted structure 120 and provide support for the riveted structure 120 to avoid shear force inside the riveted structure 120, which may cause the riveted structure 120 to bend. This arrangement can improve the service life and safety of the riveted structure 120.

[0046] Preferably, please refer to Figure 3 The protruding direction of the first rotating seat 113 and the second rotating seat 114 is the same as the arrangement direction of the plurality of riveted structures 120. Figure 3 The arrangement can increase the spacing between two adjacent snake bone nodes 110 by means of the protrusions of the first rotating seat 113 and the second rotating seat 114. Figure 3In the x direction in FIG. 1 , the avoidance space 130 can be provided between two adjacent snake bone joints 110. For example, the ends of the two adjacent snake bone joints 110 close to each other are both provided 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 riveted structure 120 more easily.

[0047] In some other cases, one of the first rotating seat 113 and the second rotating seat 114 may be convex, and the other may be concave. The first rotating seat 113 and the second rotating seat 114 cooperate with each other, and the groove wall of the concave one can limit the rotation range of the convex one to play a role of limiting, which will not be described in detail here.

[0048] In this example, see Figure 3 as well as 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 riveted structure 120 is in the same direction as the radial direction of the snake bone joint 110. This arrangement 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 rotation offset between the snake bone joints 110. Moreover, the first rotating seat 113 and the second rotating seat 114 have a supporting function, and the center of gravity of the snake bone joint 110 is distributed on the axis of the snake bone joint 110. The first rotating seat 113 and the second rotating seat 114 can stably support the snake bone joint 110 to avoid its offset and the like.

[0049] In addition, please continue to see Figure 6 The snake bone joint 110 may 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 may be arranged around the first rotating seat 113 and the second rotating seat 114, so as to facilitate 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., thereby improving the assembly efficiency of the snake bone assembly 100.

[0050] In one embodiment, please refer to Figure 6The snake bone joint 110 is provided with a first through hole 115, a second through hole 116, an instrument hole 140 and a harness hole 150. The first through hole 115, the second through hole 116, the instrument hole 140 and the harness hole 150 can all be rectangular holes, circular holes or triangular holes, etc., and this embodiment does not limit this. The first through hole 115, the second through hole 116, the instrument hole 140 and the harness hole 150 are spaced apart. The instrument hole 140 is used to pass the instrument tube 300 of the endoscope 1, and the harness hole 150 is used to pass the harness 400 of the endoscope 1. Further, the diameter of the instrument hole 140 can be larger than the diameter of the harness hole 150, which can enable the instrument hole 140 to insert a larger instrument tube 300. The first through hole 115 and the second through hole 116 are used to pass the traction rope. The snake bone joint 110 with a sheet structure can be provided with a plurality of holes for different purposes, and the hole wall plays a restraining role to improve the use effect of the snake bone joint 110.

[0051] On the basis that the snake bone joints 110 are sheet-like structures, the interval between two adjacent snake bone joints 110 is set, and the first rotating seat 113 and the second rotating seat 114 are rotated together, and the connecting function of the riveting structure 120 is added, so that the 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 riveted structure 120. The first through hole 115 and the second through hole 116 are respectively penetrated with traction ropes. By stretching and relaxing the traction ropes, the snake bone joint 110 is rotated toward the first through hole 115 or the second through hole 116 to achieve an active bending effect.

[0052] Preferably, the first through hole 115, the instrument hole 140, the second through hole 116 and the 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 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, avoid the stress concentration of the first rotating seat 113 and the second rotating seat 114, and cause the structure to be damaged, thereby improving the safety of the use of the snake bone component 100.

[0053] In this embodiment, the instrument hole 140 and the harness hole 150 are disposed on opposite sides of the line between the first through hole 115 and the second through hole 116, and / or the instrument hole 140, the harness hole 150, the first through hole 115 and the second through hole 116 are located on the same circumference of the snake bone segment 110. This arrangement can improve the driving effect of the snake bone assembly 100 and improve the safety of the use of the snake bone assembly 100.

[0054] In one embodiment, see Figure 6 , the instrument hole 140 and the harness hole 150 are respectively arranged on opposite sides of the line between the first through hole 115 and the second through hole 116. In addition, the instrument tube 300 and the harness 400 can be separately arranged on the rotation axis. As the snake bone segment 110 bends back and forth, this arrangement can prevent the instrument tube 300 and the harness 400 from being squeezed or stretched, thereby reducing their lifespan. In addition, the instrument tube 300 and the harness 400 can support the snake bone segment 110, maintain the original state of the snake bone assembly 100, prevent the snake bone assembly 100 from bending arbitrarily, and cause the insertion portion 200 of the endoscope 1 to have poor stability, thereby improving the safety of the use of the snake bone assembly 100.

[0055] In another embodiment, see Figure 7 , the instrument hole 140, the harness hole 150, the first through hole 115 and the second through hole 116 are located on the same circumference of the snake bone segment 110. The center of the circle can be located on the axis of the snake bone assembly 100. This setting can ensure that the driving effect of the traction rope on the snake bone segment 110 is more uniform and balanced, and can also evenly drive the instrument tube 300 and the harness 400 to avoid excessive deformation of one of them, thereby improving the safety of the snake bone assembly 100. Furthermore, the instrument hole 140, the harness hole 150, the first through hole 115 and the second through hole 116 are distributed at equal distances. This setting can evenly increase the distance between the two adjacent ones, making it easier for installers to install.

[0056] In another embodiment, the instrument hole 140 and the harness hole 150 are disposed on opposite sides of the line between the first through hole 115 and the second through hole 116, and the instrument hole 140, the harness hole 150, the first through hole 115 and the second through hole 116 are located on the same circumference of the snake bone segment 110. This arrangement can improve the driving effect and use safety of the snake bone assembly 100, and will not be elaborated here.

[0057] In either case, see Figure 8, the instrument hole 140 and the harness hole 150 are provided on the line between the first through hole 115 and the second through hole 116. It is understandable that, in order to ensure the driving effect of the traction rope on the snake bone assembly 100, the line between the first through hole 115 and the second through hole 116 and the axis of the riveted structure 120 have an angle, such as 30°, 60° or 90°, etc., which is not limited in this embodiment. Further, the line between the first through hole 115 and the second through hole 116 can be perpendicular to the axis of the riveted structure 120, so that this setting can ensure that the positions where the instrument hole 140 and the harness hole 150 are provided are not located on the axis of the riveted structure 120. The instrument tube 300 and the wiring harness 400 do not block the two ends of the riveted structure 120 , that is, after the instrument tube 300 and the wiring harness 400 are installed, the installer can perform the riveting operation on the riveted structure 120 without being unable to rivet due to the obstruction of the instrument tube 300 and the wiring harness 400 , thereby improving the assembly flexibility of the snake bone component 100 .

[0058] In another embodiment, see Fig. 9 as well as Fig.10 The riveted structure 120 may include a first riveted member 121, a second riveted member 122 and a connecting rod 123. The first riveted member 121 and the second riveted member 122 may be rivets, etc. Fig.11 As 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 rotatably matched with the first end 1231, and the second rotating seat 114 is rotatably matched with the second end 1232. The first rivet 121 is connected between the first rotating seat 113 and the first end 1231, and the second rivet 122 is connected between the second rotating seat 114 and the second end 1232. Exemplarily, the opposite ends of the connecting rod 123 are respectively provided with a third mounting hole 1195 and a fourth mounting hole 1196, and 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 rivet 121 is inserted into the first mounting hole 1191 and the third mounting hole 1195, and the second rivet 122 is inserted into the second mounting hole 1192 and the fourth mounting hole 1196, and the first rivet 121 and the second rivet 122 are riveted to achieve rotational cooperation between the first rotating seat 113 and the connecting rod 123, and between the second rotating seat 114 and the connecting rod 123. This arrangement can significantly improve the rotation effect and use range of the snake bone assembly 100, so as to achieve a larger rotation range or more directions of the snake bone assembly 100.

[0059] It is understandable that the first rotating seat 113 and / or the second rotating seat 114 can be configured with a first connecting block 1131 and a second connecting block 1132, and the end of the connecting rod 123 can be inserted between the first connecting block 1131 and the second connecting block 1132, and then the first connecting block 1131 and the second connecting block 1132 can support the opposite ends of the first rivet 121 and / or the second rivet 122 to improve the service life and safety of the riveted structure 120, which will not be elaborated here.

[0060] In this embodiment, the axes of the first rivet 121 and the second rivet 122 intersect or are parallel. Fig. 9 , the axis between the first rivet 121 and the second rivet 122 intersects, that is, the rotation direction of the first rivet 121 and the second rivet 122 can be configured as 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 rivet 121. The rotation direction of 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 rivet 122. The axis between the first rivet 121 and the second rivet 122 intersects, so 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 can improve the adaptation range of the insertion portion 200.

[0061] For further information, see Fig.12The snake bone joint 110 is also 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 rivet 122. The third through hole 117 and the fourth through hole 118 are used to pass a traction rope, and the traction rope can drive the snake bone joint 110 to rotate around the second rivet 122. Exemplarily, two adjacent snake bone joints 110 are respectively a first snake bone joint 111 and a second snake bone joint 112, and 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. With respect to the second snake bone joint 112, the first traction rope passed through the first through hole 115 and the second traction rope passed through the second through hole 116 can drive the first snake bone joint 111 to rotate around the axis of the first rivet 121, and the driving directions of the first traction rope and the second traction rope can be opposite, that is, the first direction and the opposite direction. With respect 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 rivet 122, and the driving directions of the third traction rope and the fourth traction rope can be opposite, that is, the second direction and the opposite direction. The axes of the first rivet 121 and the second rivet 122 intersect, so there is an angle between the first direction and the second direction. This setting enables the snake bone assembly 100 to achieve two-axis four-way bending, and the insertion part 200 can improve the adaptation range of the insertion part 200.

[0062] Preferably, see Fig.13 , the instrument hole 140 and the harness hole 150 are respectively arranged on opposite sides of the line between the first through hole 115 and the second through hole 116, and the instrument hole 140 and the harness hole 150 are respectively arranged on opposite sides of the line between the third through hole 117 and the fourth through hole 118. In other words, the instrument hole 140 and the harness hole 150 are not arranged on the line between the first through hole 115 and the second through hole 116, nor are they arranged on the line between the third through hole 117 and the fourth through hole 118. This arrangement can prevent the instrument tube 300 and the harness 400 from bending back and forth with the snake bone segment 110, thereby reducing their lifespan. In addition, the instrument tube 300 and the harness 400 can support the snake bone segment 110, maintain the original state of the snake bone component 100, and prevent the snake bone component 100 from bending arbitrarily, which leads to poor stability of the insertion portion 200 of the endoscope 1, thereby improving the safety of the use of the snake bone component 100.

[0063] Preferably, the number of the harness holes 150 can be multiple, such as 2, 3, or even more, which is not limited in this embodiment. The multiple harness holes 150 are arranged at intervals, and the multiple harness holes 150 arranged at intervals can respectively accommodate multiple harnesses 400, so that the multiple harnesses 400 are separated from each other. This arrangement can avoid the situation where the multiple harnesses 400 are entangled with each other, and can also solve the problem of stress concentration caused by the size of a single harness hole 150 being set too large.

[0064] In another embodiment, the axes of the first rivet 121 and the second rivet 122 are parallel. Therefore, the rotation direction between the first rotating seat 113 and the connecting rod 123 is roughly the same as the rotation direction between the second rotating seat 114 and the connecting rod 123. This setting can make the snake bone component 100 rotate in multiple stages in a certain direction, thereby improving the rotation effect and rotation range of the snake bone component 100. In addition, this setting can also increase the distance between two adjacent snake bone nodes 110, further increase the size of the avoidance space 130, and improve the installation efficiency of the snake bone component 100.

[0065] To achieve the above-mentioned purpose and other related purposes, the present application provides an insertion portion 200, see Fig.14 The inserting part 200 includes the aforementioned snake bone assembly 100. In this way, the inserting part 200 has the beneficial effects of any of the aforementioned solutions, which will not be described in detail here.

[0066] To achieve the above-mentioned and other related purposes, the present application provides an endoscope 1, see Fig.14 , the endoscope 1 includes the aforementioned insertion portion 200. In this way, the endoscope 1 has the beneficial effects of any of the aforementioned solutions, which will not be repeated here. The endoscope 1 of the embodiment of the present application can be a nephroscope, a bronchoscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc.

[0067] The technical solution adopted by the present invention can achieve the following beneficial effects: the snake bone assembly 100 is formed by connecting a plurality of snake bone sections 110 end to end. Two adjacent snake bone sections 110 are arranged to rotate with each other, and the riveting structure 120 rivets two adjacent snake bone sections 110 to realize the rotational connection between the snake bone sections 110. The snake bone sections 110 are provided with avoidance spaces 130 corresponding to the snake bone sections 110, and the avoidance spaces 130 can expose the riveted structures 120. Since the avoidance spaces 130 realize the open setting of the riveted structures 120, they are not constrained by space, and the installation conditions of the snake bone sections 110 and the riveted structures 120 can be clearly presented to the installers or the collection equipment, and at the same time, a larger operating space is provided, so that the alignment installation can be performed more quickly, the installation difficulty is reduced, and the assembly efficiency and riveting success rate of the snake bone assembly 100 are improved.

[0068] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0069] In addition, it should be noted 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 a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0070] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A snake bone assembly for an endoscope, characterized in that: include: A plurality of snake bone joints, wherein the plurality of snake bone joints are sequentially connected end to end; as well as, A riveted structure, the riveted structure is connected between two adjacent snake bone segments and enables the two adjacent snake bone segments to rotate around the axis of the riveted structure; Wherein, the snake bone component has an avoidance space, and the avoidance space penetrates the corresponding snake bone joint along a first preset direction to expose the riveted structure.

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

3. The snake bone assembly according to claim 2, characterized in that: One of the two adjacent snake bone nodes is protrudingly provided with a first rotating seat, and the remaining one is protrudingly provided with a second rotating seat. The first rotating seat and the second rotating seat are rotationally matched, and the riveted structure is connected between the first rotating seat and the second rotating seat.

4. The snake bone assembly according to claim 3, characterized in that: The first rotating seat and the second rotating seat are arranged at the axis of the snake bone segment; And / or, the axial direction of the riveted structure is in the same direction as the radial direction of the snake bone segment; And / or, the protruding direction of the first rotating seat and the second rotating seat is the same as the arrangement direction.

5. The snake bone assembly according to claim 4, characterized in that: The snake bone joint is a sheet-like structure, and is provided with a first through hole, a second through hole, an instrument hole and a wiring harness hole. The first through hole and the second through hole are arranged on opposite sides of the rotation axis of the riveted structure. The instrument hole is used to pass the instrument tube of the endoscope, and the wiring harness hole is used to pass the wiring harness of the endoscope. The first through hole, the second through hole, the instrument hole and the wiring harness hole are spaced apart.

6. The snake bone assembly according to claim 5, characterized in that: The instrument hole and the harness hole are arranged on opposite sides of a line between the first through hole and the second through hole, and / or the instrument hole, the harness hole, the first through hole and the second through hole are located on the same circumference of the snake bone segment; Alternatively, the instrument hole and the harness hole are opened on a line connecting the first through hole and the second through hole.

7. The snake bone assembly according to claim 5, characterized in that: The riveted structure includes a first rivet, a second rivet and a connecting rod, the connecting rod having a first end and a second end that are far away from each other, and in two adjacent snake bone sections, the first rotating seat is rotationally matched with the first end, and the second rotating seat is rotationally matched with the second end, the first rivet is connected between the first rotating seat and the first end, and the second rivet is connected between the second rotating seat and the second end.

8. The snake bone assembly according to claim 7, characterized in that: The axes of the first rivet and the second rivet intersect or are parallel to each other; And / or, the number of the wiring harness holes is multiple, and the multiple wiring harness holes are arranged at intervals; 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 provided on opposite sides of the rotation axis of the second riveted component; And / or, the first through hole, the instrument hole, the second through hole and the harness hole are distributed along the outer edge of the serpentine segment.

9. An insertion portion, characterized in that: It comprises the snake bone component as described in any one of claims 1-8.

10. An endoscope, characterized in that: Comprising the insert portion as claimed in claim 9.

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