Snake bone ring, bending assembly, endoscope and snake bone ring profile
By setting an inner concave and outer convex plane and opening a through hole on the snake bone ring body, the problems of complexity and high cost of traditional snake bone ring components are solved, and the effect of simplifying the molding process and reducing costs is achieved.
Patent Information
- Application Number
- CN202422224087.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-09-10
AI Technical Summary
Traditional snake bone ring bending components are complex to manufacture and costly, especially small diameter snake bone rings are difficult to form.
A radially concave first plane and a radially convex second plane are set on the main body of the serpentine ring as rotational mating surfaces, and through holes are opened on each plane. Adjacent serpentine rings are rotationally connected through connecting parts, which simplifies the molding process and avoids interference.
The processing cost of the snake bone ring is reduced, the forming process is simplified, the damage to the hardness during the stamping process is avoided, and the processing efficiency is improved.
Smart Images
Figure CN223323488U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, and more specifically, to a snake bone ring, a bending component, an endoscope, and a snake bone ring profile. Background Art
[0002] Endoscopes are primarily used to observe target locations within the human body and assist in minimally invasive or non-invasive treatments. Due to the complex curvature of human passageways, a bending assembly is installed at the front end of the insertion section to ensure smooth insertion. This bending assembly, which traditionally uses a series of connected snake-bone rings, is driven by a traction rope to achieve the bending of the front end of the insertion section.
[0003] In the process of implementing this application, the inventors discovered that the prior art has at least the following problems:
[0004] Conventional bending components are complex and expensive to manufacture. For the key component of a bending component, the serpentine ring, this is typically machined from a round steel tube and then locally stamped and riveted to form the mating surfaces. This is a cumbersome process. Furthermore, stamping methods present difficulties for small diameter serpentine rings (as small as 3mm). Utility Model Content
[0005] In view of this, the purpose of this application is to provide a serpentine ring, a bending component, an endoscope and a serpentine ring profile. The structural design of the serpentine ring, the bending component, the endoscope and the serpentine ring profile can effectively solve the problem of high cost of serpentine ring molding.
[0006] In order to achieve the above objectives, this application provides the following technical solutions:
[0007] A serpentine ring, a bending component for an endoscope, includes a serpentine ring body, and a first plane and a second plane are respectively provided on radially opposite sides of the serpentine ring body. The first plane is an inwardly concave plane formed by radially concave part of the side wall of the serpentine ring body, and the second plane is an outwardly convex plane formed by radially convex part of the side wall of the serpentine ring body. The first plane is used to be arranged on the inner side of the second plane of another serpentine ring, and the second plane is used to be arranged on the outer side of the first plane of another serpentine ring. The first plane is provided with a first through hole, and the second plane is provided with a second through hole. The first through hole and the second through hole are used to respectively cooperate with the second through hole and the first through hole of another serpentine ring to rotatably connect the serpentine ring with the other serpentine ring.
[0008] Optionally, in the above-mentioned serpentine bone ring, the projections of the radial cross-sections of the serpentine bone ring body on the radial plane overlap.
[0009] Optionally, in the above-mentioned serpentine ring, the first through holes are respectively provided at two axial ends of the first plane, and the second through holes are respectively provided at two axial ends of the second plane.
[0010] Optionally, in the above-mentioned snake bone ring, the first plane is provided with a first lug extending axially, and the first through hole is provided in the first lug;
[0011] And / or, the second plane is provided with a second lug extending axially, and the second through hole is provided in the second lug.
[0012] Optionally, the above-mentioned serpentine bone ring also includes a limiting piece provided on the main body of the serpentine bone ring, and the limiting piece and the main body of the serpentine bone ring form a groove for passing a traction rope that drives the serpentine bone ring to rotate, and the limiting piece is located between the first plane and the second plane. When the serpentine bone ring is rotationally connected to another serpentine bone ring, the limiting pieces of the two adjacent serpentine bone rings are aligned in the circumferential direction.
[0013] Optionally, in the above-mentioned serpentine bone ring, the limiting members are respectively provided on two radially opposite sides of the serpentine bone ring body.
[0014] The present application provides a serpentine ring for use in a bending assembly of an endoscope. The serpentine ring includes a serpentine ring body, with a first plane and a second plane respectively provided on radially opposite sides of the serpentine ring body. The first plane is provided with a first through hole, and the second plane is provided with a second through hole. The first plane and the second plane are respectively configured to cooperate with the first plane and the second plane of another serpentine ring, and the first through hole and the second through hole are respectively configured to cooperate with the first through hole and the second through hole of another serpentine ring to rotatably connect the serpentine ring to the other serpentine ring. The first plane is a concave plane formed by a radial inward concavity of a portion of the sidewall of the serpentine ring body, and the second plane is a convex plane formed by a radial outward convexity of a portion of the sidewall of the serpentine ring body. The first plane is configured to be located inside the second plane of the other serpentine ring, and the second plane is configured to be located outside the first plane of the other serpentine ring.
[0015] When using the serpentine ring provided by the present application, a radially concave first plane and a radially convex second plane are directly set on the radially opposite sides of the serpentine ring body as rotating mating surfaces for rotationally connecting with adjacent serpentine rings, and a through hole is opened on each rotating mating surface for the connecting parts to pass through, so that adjacent serpentine rings can rotate relative to each other and avoid interference. Moreover, the serpentine ring can be directly processed from a profile with a corresponding cross-sectional shape, such as preparing a single serpentine ring unit by cutting, and drilling holes at corresponding positions to form a first through hole and a second through hole, thereby forming the above-mentioned serpentine ring. In summary, the serpentine ring provided by the present application can be processed by using only one specification of profile, without the need for a stamping process, which simplifies the serpentine ring forming process, not only reduces the processing cost, but also avoids the damage to the hardness of the serpentine ring body during the stamping process.
[0016] In order to achieve the above purpose, the present application also provides a bending assembly, which includes any of the above-mentioned snake bone rings. Since the above-mentioned snake bone rings have the above-mentioned technical effects, the bending assembly with the snake bone rings should also have corresponding technical effects.
[0017] To achieve the above-mentioned purpose, the present application further provides an endoscope comprising any of the above-mentioned serpentine rings or curved components. Since the above-mentioned serpentine rings or curved components have the above-mentioned technical effects, the endoscope comprising the serpentine rings or curved components should also have corresponding technical effects.
[0018] To achieve the above objectives, the present application also provides a serpentine ring profile for use in forming a serpentine ring for a curved assembly of an endoscope. The serpentine ring profile comprises a tubular body, with a first tubular body plane and a second tubular body plane respectively defined on radially opposite sides of the tubular body. The first tubular body plane is a concave plane formed by a radially concave portion of the tubular body's sidewall, and the second tubular body plane is a convex plane formed by a radially convex portion of the tubular body's sidewall.
[0019] Optionally, in the above-mentioned serpentine ring profile, the cross-sections of the serpentine ring profile along the radial direction are all the same.
[0020] By using the serpentine ring profile provided by the present application, a radially concave first tube body plane and a radially convex second tube body plane are respectively provided on the radially opposite sides of the tube body, and the serpentine ring unit obtained by cutting has a corresponding first plane and a second plane, which can be used as a rotating mating surface for the rotational connection of adjacent serpentine rings, so that adjacent serpentine rings can rotate relative to each other and avoid interference. The serpentine ring unit can be formed into a through hole by hole processing to form a serpentine ring, and adjacent serpentine rings can be rotated by passing a connector through the through hole. In summary, the serpentine ring profile provided by the present application can be used to directly cut and prepare a serpentine ring with a desired cross-sectional shape, which reduces the subsequent forming work of processing the serpentine ring rotational mating surface, simplifies the serpentine ring forming process, and thus reduces the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0022] Figure 1 This is a schematic diagram of the assembly of a snake bone ring in this application;
[0023] Figure 2 for Figure 1 P-direction view;
[0024] Figure 3 for Figure 2 AA cross-section of
[0025] Figure 4 This is a schematic structural diagram of a bending assembly according to a specific embodiment of the present application;
[0026] Figure 5 This is a schematic structural diagram of a snake-bone ring profile according to a specific embodiment of the present application.
[0027] Reference numerals:
[0028] 1- snake bone ring; 2- connector; 3- traction rope; 4- snake bone ring profile;
[0029] 11- snake bone ring body; 111- first plane; 112- second plane; 113- first through hole; 114- second through hole; 115- first ear; 116- second ear; 12- stopper; 13- groove;
[0030] 21-flange; 22-shaft shoulder;
[0031] 41-pipe body; 42-first pipe body plane; 43-second pipe body plane. DETAILED DESCRIPTION
[0032] The embodiments of the present application disclose a snake bone ring, a bending component, an endoscope and a snake bone ring profile, so as to simplify the snake bone ring manufacturing process and reduce costs while ensuring strength.
[0033] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0034] The endoscope includes an insertion portion, an operating portion, and a light-guiding portion. The insertion portion can enter the human body and, according to its function, includes a head portion, a bending portion, and an insertion tube. The bending portion is provided with a bending assembly, including a plurality of connected serpentine rings, which are rotatably connected to each other so as to adjust the orientation of the head portion by relative rotation between two adjacent serpentine rings, thereby adapting to the curved human body cavity or adjusting the visual area of the head portion. The serpentine ring provided in the present application directly sets a rotating mating surface on the serpentine ring body, so that it can be directly processed from a profile of the corresponding cross-sectional shape, reducing the subsequent molding work of the serpentine ring's rotating mating surface.
[0035] In some embodiments, the present application provides a serpentine ring for use in a bending assembly of an endoscope. The serpentine ring comprises a serpentine ring body, with a first flat surface and a second flat surface defined on radially opposite sides of the serpentine ring body. The serpentine ring body is annular, and its main structure may specifically be a partial circular ring. The partial flat surfaces of the serpentine ring body are the aforementioned first and second flat surfaces. The first and second flat surfaces are parallel and located on radially opposite sides of the serpentine ring body. The first flat surface defines a first through hole, and the second flat surface defines a second through hole. The first and second through holes are coaxial.
[0036] When a plurality of serpentine rings having the above-described structure are used to form a bending assembly of an endoscope, the first plane and the second plane of any serpentine ring are used to respectively cooperate with the second plane and the first plane of another serpentine ring, and the first through hole and the second through hole are used to respectively cooperate with the second through hole and the first through hole of another serpentine ring, so as to rotationally connect the serpentine ring with the other serpentine ring. Specifically, when the two serpentine rings are assembled, the first plane of one serpentine ring is used to cooperate with the second plane of the other serpentine ring, and the corresponding first through hole cooperates with the second through hole of the other serpentine ring, so as to rotationally connect the two serpentine rings via a connecting piece; correspondingly, the second plane of one serpentine ring is used to cooperate with the first plane of the other serpentine ring, and the corresponding second through hole cooperates with the first through hole of the other serpentine ring, so as to rotationally connect the two serpentine rings via a connecting piece.
[0037] For details, please refer to Figure 1-Figure 3 The first plane 111 is a concave plane formed by a radially inward concave portion of the sidewall of the serpentine ring body 11, while the second plane 112 is a convex plane formed by a radially outward convex portion of the sidewall of the serpentine ring body 11. The first plane 111 is intended to be located inside the second plane 112 of the other serpentine ring, while the second plane 112 is intended to be located outside the first plane 111 of the other serpentine ring. In other words, the first plane 111 is a concave plane, and the second plane 112 is a convex plane. It should be understood that the concave and convex terms here refer to the curved sidewalls. The chord lengths of the convex and concave planes are coordinated so that when the two serpentine rings are assembled, the concave plane of one serpentine ring is located inside the convex plane of the other. Specifically, the two planes can have a clearance fit or a transition fit to facilitate installation and relative rotation. This coordination of the two planes provides a rotational mating surface for the rotational connection, preventing motion interference. With this arrangement, the structures of each serpentine ring can be identical, allowing them to be manufactured from the same profile, facilitating molding. Specifically, the first plane 111 and the second plane 112 are respectively arranged on opposite radial sides of the serpentine ring body 11 and are parallel to the axial direction of the serpentine ring body 11, so as to facilitate assembling serpentine rings of the same specification by flipping 180°.
[0038] By using the serpentine ring provided by the present application, a radially concave first plane and a radially convex second plane are directly set on the radially opposite sides of the serpentine ring body as rotating mating surfaces for rotationally connecting with adjacent serpentine rings, and a through hole is opened on each rotating mating surface for the connecting parts to pass through, so that adjacent serpentine rings can rotate relative to each other and avoid interference. Moreover, the serpentine ring can be directly processed from a profile having a radially concave first tube body plane and a radially convex second tube body plane, such as preparing a single serpentine ring unit by cutting, and the serpentine ring unit has corresponding first and second planes, and drilling is performed at corresponding positions to form a first through hole and a second through hole, thereby forming the above-mentioned serpentine ring. In summary, the use of the serpentine ring provided by the present application simplifies the serpentine ring forming process, thereby reducing the processing cost.
[0039] In some embodiments, the projections of the radial sections of the serpentine ring body on the radial plane overlap, that is, the projections of any radial section of the serpentine ring body on the radial plane overlap. It can be understood that the overlap here includes the complete overlap of the projections of any radial section of the serpentine ring body on the radial plane. That is, the inner wall surface and the outer wall surface of the serpentine ring body are parallel to the axial direction. As set above, the serpentine ring body can be directly processed by profiles of corresponding cross-sectional shapes, and the profiles can be formed by extrusion and other methods, thereby facilitating profile processing. In other embodiments, the radial sections of the serpentine ring body may not be exactly the same. For example, on a profile of a certain shape, each first tube body plane and each second tube body plane are first processed corresponding to the first plane and second plane of each serpentine ring body, and then cut to form a serpentine ring unit. That is, there is no need to separately process the rotating mating surface for the serpentine ring, and the effect of simplifying the serpentine ring forming process can also be achieved.
[0040] In some embodiments, a first through hole 113 is provided at each axial end of the first plane 111, and a second through hole 114 is provided at each axial end of the second plane 112. Two first through holes 113 are provided on the first plane 111, and two second through holes 114 are provided on the second plane 112, so as to facilitate rotational connection with the other two serpentine rings, and the other two serpentine rings are respectively connected to the axial ends of the serpentine ring. Depending on the bending requirements, if the two serpentine rings can be rotated to meet the bending requirements, the first plane 111 can also be provided with only one first through hole 113, and the corresponding second plane 112 can be provided with one second through hole 114. Alternatively, for the serpentine ring located at the end of the bending assembly, only one first through hole 113 can be provided on the first plane 111, and one second through hole 114 can be provided on the corresponding second plane 112, so as to be rotatably connected to another serpentine ring on one side.
[0041] In some embodiments, the first plane 111 is provided with an axially extending first lug 115, and the first through-hole 113 is provided in the first lug 115, and / or the second plane 112 is provided with an axially extending second lug 116, and the second through-hole 114 is provided in the second lug 116. It will be understood that axial extension means that the protruding direction of the first lug 115 and the second lug 116 is along the axial direction. By providing the first through-hole 113 in the first lug 115 or the second through-hole 114 in the second lug 116, when the two serpentine rings are assembled, the first lug 115 or the second lug 116 can be inserted into the inner side or outer side of the other serpentine ring, so that the two serpentine rings can be rotatably connected via the connecting member, reducing the rotational interference between the end faces of the adjacent serpentine rings, allowing the adjacent serpentine rings to provide a larger relative rotation angle, thereby increasing the bendable angle of the bending assembly.
[0042] Specifically, when assembling the two serpentine rings, the first lug 115 of one serpentine ring can be inserted into the inner side of the second flat surface 112 of the other serpentine ring, with the first through-hole 113 of the first lug 115 facing the second through-hole 114 of the corresponding second flat surface 112, thereby facilitating the rotational connection of the two serpentine rings via the connecting member. The assembly of the second lug 116 is similar to that of the first lug 115. That is, when assembling the two serpentine rings, the second lug 116 of one serpentine ring can be inserted into the outer side of the first flat surface 111 of the other serpentine ring, with the second through-hole 114 of the second lug 116 facing the first through-hole 113 of the corresponding first flat surface 111, thereby facilitating the rotational connection of the two serpentine rings via the connecting member. In the case where the serpentine bone ring is provided with both the first ear 115 and the second ear 116, when the two serpentine bone rings are assembled, the first ear 115 of any serpentine bone ring can be inserted into the inner side of the second ear 116 of the other serpentine bone ring, and the first through hole 113 of the first ear 115 is made opposite to the second through hole 114 of the corresponding second ear 116, thereby facilitating the rotational connection of the two serpentine bone rings through the connecting piece.
[0043] It can be understood that, for the positions of the first lug 115 and the second lug 116 , the projection of their radial cross-sections on the radial plane should be included in the projection range of the radial cross-section at the middle position of the serpentine ring on the radial plane.
[0044] In some embodiments, the serpentine ring further includes a limiting member 12 provided on the serpentine ring body 11. The limiting member 12 and the serpentine ring body 11 form a groove 13 for passing a traction rope that drives the serpentine ring to rotate, and the limiting member 12 is located between the first plane 111 and the second plane 112. When the serpentine ring is rotatably connected to another serpentine ring, the limiting members 12 of the two adjacent serpentine rings are aligned in the circumferential direction. The limiting member 12 and the serpentine ring body 11 form a groove 13 to pass through the traction rope, that is, it can play a limiting role on the traction rope to prevent it from shaking significantly and affecting the traction effect, so that the bending component can bend according to a predetermined angle. It should be noted that the limiting member 12 is defined as not belonging to the serpentine ring body 11, that is, the radial cross-section of the above-mentioned serpentine ring body 11 does not include the limiting member 12. Specifically, the connection relationship between the limiter 12 and the serpentine bone ring body 11 can be achieved by conventional fixing methods such as bonding and clamping, or by an integrated method. For example, the limiter 12 is formed by partially cutting and concavely ...
[0045] Furthermore, the limiting member 12 is located between the first through hole 113 and the second through hole 114 , so that the traction rope and the rotation axis of the snake bone ring are staggered, thereby achieving effective traction.
[0046] In some embodiments, radially opposite sides of the serpentine ring body 11 are provided with stoppers 12. When the serpentine ring is rotatably connected to one another, the stoppers 12 of the two adjacent serpentine rings are circumferentially aligned. The grooves 13 within the two stoppers 12 of each serpentine ring can accommodate a traction rope. This allows the serpentine ring to be equipped with two traction ropes, enabling traction from two directions and, consequently, relative rotation of the serpentine ring in both directions. Specifically, the distances between each stopper 12 and the first through hole 113 and the second through hole 114 are equal.
[0047] In some embodiments, the serpentine ring body 11 may be provided with a stopper to limit the relative rotation angle between adjacent serpentine rings. Specifically, the stopper may be an axial edge of the serpentine ring body 11. Its shape allows the serpentine ring body 11 to be rotated until the edges abut against each other, thereby limiting the rotation angle. The specific rotation angle can be controlled by the gap between the edges of the adjacent serpentine rings, ensuring that the serpentine rings deform as designed.
[0048] Based on the snake bone ring provided in the above embodiments, the present application further provides a bending assembly, also referred to as a snake bone, which includes any of the snake bone rings in the above embodiments. Since the bending assembly uses the snake bone rings in the above embodiments, the beneficial effects of the bending assembly can be referred to the above embodiments.
[0049] In some embodiments, see Figure 4The bending assembly includes interconnected serpentine rings 1, a connector 2 connecting the serpentine rings 1, and a traction rope 3 that provides traction. The connector 2 is inserted between the corresponding first through-holes 113 and second through-holes 114 of two adjacent serpentine rings 1 to enable rotational connection between the two adjacent serpentine rings 1, serving as the rotation axis for the two adjacent serpentine rings 1. The traction rope 3 is sequentially inserted through the grooves 13 of all serpentine rings 1 in their rotational connection states. One end of the traction rope 3 is connected to a control component for controlling the rotation of the serpentine rings 1, and the other end is connected to the last serpentine ring 1 away from the control component. When the endoscope bending control component is operated, the traction rope 3 is pulled, causing the serpentine rings 1 to rotate about the rotation axis, thereby bending the bending assembly.
[0050] In some embodiments, the connector 2 is a rivet, which rivets the two adjacent serpentine rings 1 together. During assembly, the first through-holes 113 of the two adjacent serpentine rings 1 are aligned with the corresponding second through-holes 114. For details on the alignment, please refer to the relevant descriptions in the above embodiments and will not be repeated here. After the holes are aligned, rivets are inserted into the through-holes to restrict the freedom of the serpentine rings 1 along their axis. This allows the serpentine rings 1 to rotate only about the rivet axis. In a serpentine composed of multiple serpentine rings 1, each serpentine ring 1 can rotate about the rivet axis. Specifically, one end face of the rivet is provided with a flange 21. During assembly, the flange 21 can abut against one serpentine ring 1 to limit its position. After the other end of the rivet passes through the first through-hole 113 and the second through-hole 114, the other end of the rivet is riveted together to form a shoulder 22. Specifically, this shoulder 22 is formed to abut against another serpentine ring 1 to limit its position. This limits the rivet's freedom of movement, preventing it from dislodging from the corresponding through-hole, achieving a reliable connection and ensuring excellent connection strength between the serpentine rings to prevent loosening. In other embodiments, the connector 2 can also be a pin, such as a cotter pin.
[0051] Based on the serpentine ring or curved assembly provided in the above embodiments, the present application further provides an endoscope, which includes any of the serpentine rings or curved assemblies in the above embodiments. Since the endoscope uses the serpentine ring or curved assembly in the above embodiments, the beneficial effects of the endoscope can be referred to the above embodiments.
[0052] The present application also provides a snake bone ring profile for preparing a snake bone ring of a curved component of an endoscope, specifically for preparing any of the snake bone rings in the above embodiments. In some embodiments, please refer to Figure 5The serpentine ring profile 4 includes a tube body 41, and the radially opposite sides of the tube body 41 are respectively provided with a first tube body plane 42 and a second tube body plane 43. The first tube body plane 42 is an inner concave plane formed by the radial concave part of the side wall of the tube body 41, and the second tube body plane 43 is an outer convex plane formed by the radial convex part of the side wall of the tube body 41. The traditional serpentine ring is generally made by processing a round steel pipe into a serpentine ring body, and then forming a rotating mating surface on the annular serpentine ring body through a stamping process, and then assembling. Using the serpentine ring profile 4 provided by the present application, the radially opposite sides of the tube body 41 are respectively provided with a radially concave first tube body plane 42 and a radially convex second tube body plane 43. The serpentine ring unit obtained by cutting has corresponding first planes 111 and second planes 112, which can be used as rotating mating surfaces for rotating connection of adjacent serpentine rings, so that adjacent serpentine rings can rotate relative to each other to avoid interference. The serpentine ring unit can be formed into a through hole through hole processing to form a serpentine ring. Adjacent serpentine rings can be connected by connecting pieces inserted through the through hole to achieve rotation. In summary, the serpentine ring profile 4 provided by this application can be directly assembled after being processed into serpentine rings, without the need to perform the forming process of the rotating mating surface, which greatly simplifies the serpentine ring manufacturing process and reduces the production cost.
[0053] In some embodiments, the cross-sections of the serpentine ring profile along the radial direction are all the same, so that the profile can be formed by extrusion or the like, thereby facilitating profile processing.
[0054] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0055] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A snake bone ring for a curved component of an endoscope, characterized in that: The invention comprises a serpentine ring body (11), wherein radially opposite sides of the serpentine ring body (11) are respectively provided with a first plane (111) and a second plane (112), wherein the first plane (111) is an inner concave plane formed by radially concave part of the side wall of the serpentine ring body (11), and the second plane (112) is an outer convex plane formed by radially convex part of the side wall of the serpentine ring body (11), the first plane (111) is used to be arranged on the inner side of the second plane (112) of another serpentine ring, and the second plane (112) is used to be arranged on the outer side of the first plane (111) of another serpentine ring, the first plane (111) is provided with a first through hole (113), and the second plane (112) is provided with a second through hole (114), and the first through hole (113) and the second through hole (114) are used to respectively cooperate with the second through hole (114) and the first through hole (113) of another serpentine ring to rotatably connect the serpentine ring with the other serpentine ring.
2. The snake bone ring according to claim 1, characterized in that: The projections of the radial cross sections of the serpentine ring body (11) on the radial plane coincide with each other.
3. The snake bone ring according to claim 1, characterized in that: The first through holes (113) are respectively provided at two axial ends of the first plane (111), and the second through holes (114) are respectively provided at two axial ends of the second plane (112).
4. The snake bone ring according to claim 1, characterized in that: The first plane (111) is provided with a first lug (115) extending axially, and the first through hole (113) is provided in the first lug (115); And / or, the second plane (112) is provided with an axially extending second lug (116), and the second through hole (114) is provided in the second lug (116).
5. The snake bone ring according to any one of claims 1 to 4, characterized in that: The invention also includes a limiting member (12) provided on the main body (11) of the serpentine bone ring, wherein the limiting member (12) and the main body (11) of the serpentine bone ring form a groove (13) for passing a traction rope for driving the serpentine bone ring to rotate, and the limiting member (12) is located between the first plane (111) and the second plane (112). When the serpentine bone ring is in a state of being rotatably connected to another serpentine bone ring, the limiting members (12) of the two adjacent serpentine bone rings are aligned in the circumferential direction.
6. The snake bone ring according to claim 5, characterized in that: The limiting components (12) are respectively provided on two radially opposite sides of the snake bone ring body (11).
7. A bending component, characterized in that: The method comprises a plurality of snake bone rings according to any one of claims 1 to 6, and further comprises: A connecting piece is provided between the first through hole (113) and the second through hole (114) corresponding to two adjacent serpentine rings to enable the two adjacent serpentine rings to be rotatably connected; One end of the traction rope is connected to a control component for controlling the rotation of the snake bone ring, and the other end is connected to the last snake bone ring away from the control component.
8. An endoscope, characterized in that: It comprises the snake bone ring according to any one of claims 1 to 6 or the curved component according to claim 7.
9. A snake bone ring profile for preparing a snake bone ring of a curved component, characterized in that: It includes a tube body, and a first tube body plane and a second tube body plane are respectively provided on two radially opposite sides of the tube body. The first tube body plane is an inwardly concave plane formed by the radial inward concavity of part of the side wall of the tube body, and the second tube body plane is an outwardly convex plane formed by the radial outward convexity of part of the side wall of the tube body.
10. The snake bone ring profile according to claim 9, characterized in that: The cross sections of the snake-bone ring profile along the radial direction are all the same.