Endoscope snake bone and endoscope

Abstract

The utility model discloses an endoscope snake bone and an endoscope. The endoscope snake bone comprises a connecting rib and a plurality of bone joints. The joints are sequentially arranged at intervals in the first direction, first holes penetrating through the joints in the first direction are formed in the joints, the first holes of the joints are in one-to-one correspondence in the first direction, a groove is formed in the outer surface of at least one joint, and the grooves are used for fixing snakeskin or fixing pieces. Wherein the joints are connected in sequence, and the adjacent joints can rotate relatively. The groove is formed in the outer surface of the joint, positioning can be provided for the setting position of glue through the groove, then the positioning precision when accessories such as a snake bone skin and a fixing piece are bonded with the joint is improved, and when the glue is extruded for bonding, the wall face of the groove can limit the displacement of the glue, the probability that the glue flows around is reduced, and the service life of the glue is prolonged. And the probability of glue overflow is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an endoscope snake and an endoscope. Background Art

[0002] The endoscope snake bone needs to fix the clamp channel tube, electrical connection wires and snake bone skin covering the outer surface of the joint. In the related technology, glue is usually used to bond the fixing parts, and the clamp channel tube and electrical connection wires are fixed by the fixing parts, and the snake bone skin is also fixed by glue bonding. In the process of using glue to bond, it is easy to have problems such as glue overflow and bonding positioning deviation. Therefore, it is necessary to study and improve the above problems. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an endoscope snake bone, which can reduce the possibility of glue overflow during bonding and improve the positioning accuracy of bonding.

[0004] The utility model also provides an endoscope with the endoscope snake bone.

[0005] According to an embodiment of the utility model, the endoscope snake bone includes a connecting rib and a plurality of joints. Each of the joints is arranged in sequence along a first direction, and each of the joints is provided with a first hole that passes through the first direction. The first holes of each of the joints correspond to each other in the first direction. The outer surface of at least one of the joints is provided with a groove, and the groove is used to fix the snake skin or a fixing member. The joints are connected in sequence, and the adjacent joints can rotate relative to each other.

[0006] The endoscopic snake bone according to the embodiment of the utility model has at least the following beneficial effects: by providing a groove on the outer surface of the joint, the groove can provide a positioning for the setting position of the glue, thereby improving the positioning accuracy when the snake bone skin, fixings and other accessories are bonded to the joint, and when the glue is squeezed and bonded, the wall surface of the groove will limit the displacement of the glue, reducing the probability of the glue flowing around, thereby reducing the probability of glue overflow.

[0007] According to some embodiments of the present invention, in a first direction, the endoscopic snake has a first end and a second end opposite to each other, and at least one of the condyle located at the first end and the condyle located at the second end is provided with the groove.

[0008] According to some embodiments of the present invention, the groove surrounds the outer surface of the condyle along the circumference of the condyle.

[0009] According to some embodiments of the utility model, the endoscope snake bone also includes a fixing piece, and the fixing piece is sleeved in the groove, and in the first direction, the size of the groove is X1, and the size of the fixing piece is X2, satisfying X1>X2.

[0010] According to some embodiments of the utility model, the joint is provided with a plurality of second holes extending along the first direction, the second holes are used for passing traction wires, the second holes of adjacent joints correspond one to one in the first direction, and in the same joint, at least two of the second holes are located on the same side of the first hole in a third direction, and the third direction is perpendicular to the first direction.

[0011] According to some embodiments of the present invention, a first surface and a second surface intersecting normally are respectively provided on the end surfaces facing adjacent bone joints, and the distance between the first surface and the second surface gradually increases in a direction away from the first hole.

[0012] According to some embodiments of the utility model, the joint is provided with a second hole, the second hole is used to pass the traction wire, and the second holes of adjacent joints correspond one to one in the first direction; the joint has an outer wall and an inner wall, the inner wall defines the first hole, and the second hole is located between the outer wall and the inner wall.

[0013] According to some embodiments of the utility model, the endoscopic snake bone also includes connecting ribs, which connect the two end surfaces of adjacent joints facing each other; the joints are provided with a plurality of second holes that pass through along a first direction, and the second holes are used to pass traction wires, and the second holes of adjacent joints correspond one to one in the first direction, wherein the connecting ribs and the second holes are staggered in the circumferential direction of the joints.

[0014] According to some embodiments of the utility model, the endoscopic snake bone also includes connecting ribs, which connect the two end surfaces of adjacent joints facing each other; wherein, a plurality of the connecting ribs are connected between adjacent joints, and at least two of the connecting ribs are arranged relative to each other in a second direction, and the second direction is perpendicular to the first direction.

[0015] According to some embodiments of the utility model, the joints are provided with a plurality of second holes extending along the first direction, the second holes are used for passing traction wires, the second holes of adjacent joints correspond one to one in the first direction, at least one second hole is located on one side of the first hole in the third direction, at least one second hole is located on the other side of the first hole in the third direction, and the second hole is centered in the second direction; wherein the first direction and the second direction are both perpendicular to the third direction.

[0016] According to some embodiments of the present invention, each of the bone joints and each of the connecting ribs are integrally formed.

[0017] The endoscope according to the embodiment of the utility model comprises the endoscope snake bone in the embodiment.

[0018] The endoscope according to the embodiment of the utility model has at least the following beneficial effects: by applying the endoscope snake bone of the embodiment of the present application, the assembly of the fixing parts and the snake bone skin can be facilitated, the probability of glue overflow during bonding can be reduced, and the positioning accuracy of the fixing parts and the snake bone skin can be improved.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 A schematic diagram of an endoscope snake bone according to an embodiment of the utility model;

[0022] Figure 2 It is a front view of the endoscope snake bone of the embodiment of the utility model;

[0023] Figure 3 A side view of an endoscope snake bone according to an embodiment of the utility model;

[0024] Figure 4 for Figure 2 The cross-sectional view of the endoscopic snake bone along AA in;

[0025] Figure 5 for Figure 2 The enlarged schematic diagram of point b in the middle;

[0026] Figure 6 for Figure 3 Enlarged schematic diagram of point c in the middle.

[0027] Reference numerals:

[0028] Endoscopic snake bone 10;

[0029] Condyle 100, inner wall 101, outer wall 102, first hole 110, groove 120, exposed portion 121 of the groove, first surface 130, second surface 140, second hole 150;

[0030] Connecting rib 200 , opening 300 , first end 400 , second end 500 , fixing member 600 . DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] In response to the problems of glue overflow and positioning deviation during gluing of endoscopic snake bones in the related art, the present application provides grooves on the outer surface of the bone joints to provide positioning and accommodation space for the glue, thereby reducing the probability of glue overflow and improving the positioning accuracy of the bonding.

[0037] The following describes the endoscope snake bone of an embodiment of the present application with reference to the accompanying drawings.

[0038] Reference Figures 1 to 4According to the embodiment of the utility model, the endoscope snake bone 10 comprises a plurality of bone joints 100, each bone joint 100 is arranged in sequence along the first direction, and each bone joint 100 is provided with a first hole 110 which passes through along the first direction, and the first hole 110 is used to pass the clamp channel tube, and the first holes 110 of each bone joint 100 correspond to each other in the first direction, and at least one bone joint 100 is provided with a groove 120 on the outer surface, and the groove 120 is used to fix the snake skin or the fixing member 600. By providing the groove 120 on the outer surface of the bone joint 100, the groove 120 can provide positioning for the setting position of the glue, thereby improving the positioning accuracy when the accessories such as the snake skin (not shown in the figure), the fixing member 600 and the bone joint 100 are bonded, and when the glue is squeezed and bonded, the wall surface of the groove 120 will limit the displacement of the glue, reduce the probability of the glue flowing around, and thus reduce the probability of glue overflow.

[0039] The first holes 110 of each joint 100 correspond to each other in the first direction, which can be understood as the coaxial arrangement of the first holes 110 of each joint 100 in the first direction, so that endoscopy components such as a clamp tube and a lighting lamp can smoothly penetrate the first hole 110. Among them, the deviation of the axis within the allowable error range can also be considered as a coaxial arrangement.

[0040] Reference Figure 1 and Figure 2 In the first direction, the endoscope snake bone 10 has a first end 400 and a second end 500 opposite to each other, and at least one of the condyles 100 at the first end 400 and the condyles 100 at the second end 500 is provided with a groove 120. The snake bone skin is used to cover each condyle 100 and the gap between adjacent condyles 100, so the snake bone skin needs to cover from the condyle 100 at the first end 400 to the condyle 100 at the second end 500 along the first direction, and at least one of the condyles 100 at the first end 400 and the condyle 100 at the second end 500 is provided with a groove 120, which can quickly realize the positioning of the bonding position of the head or tail of the snake bone skin, thereby improving the bonding efficiency. According to the bonding requirements, the joint 100 located at the first end 400 and the joint 100 located at the second end 500 can be provided with a groove 120. Furthermore, the outer surface of the joint 100 located in the middle position can also be provided with a groove 120 to further improve the bonding strength between the snake bone skin and the joint 100.

[0041] Specifically, the first end 400 is the patient end, which is used as the end of the endoscope entering the human body. The second end 500 is the doctor operation end, which is used as the end of the endoscope entering the human body, or is used as the end located outside the human body for operation.

[0042] Reference Figure 1Furthermore, the groove 120 surrounds the outer surface of the condyle 100 along the circumference of the condyle 100, so that the groove 120 is an annular groove. Since the fixing member 600 is usually selected as a metal ring to facilitate assembly through plug-in matching, the groove 120 is set as an annular groove so that the metal ring can be sleeved on the groove 120, which can further improve the positioning accuracy of the fixing member 600 and facilitate the bonding of the fixing member 600 to the condyle 100. In addition, in the embodiment where the snake bone skin is wound and fixed by silk thread, the annular groove 120 can provide positioning for the winding position of the silk thread, and the wall surface of the groove 120 can limit the sliding of the silk thread to reduce the difficulty of silk thread winding and the possibility of silk thread slippage.

[0043] Reference Figure 2 On the other hand, in the first direction, the size of the groove 120 is X1, and the size of the fixing piece is X2. The size X1 of the groove 120 is larger than the size X2 of the fixing piece, so that after the fixing piece 600 is sleeved in the groove 120, at least a part of the groove 120 can be exposed, so that the glue can overflow from the exposed part 121 of the groove, and the snake bone skin can be bonded by the glue in the exposed part of the groove 120. The fixing piece 600 and the snake bone skin can be bonded and positioned on the same groove 120, thereby improving the assembly efficiency and simplifying the structure of the endoscope snake bone 10.

[0044] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 , the end faces of the adjacent joints 100 facing each other are respectively provided with a first surface 130 and a second surface 140 intersecting in a normal direction, and the normal intersection makes the first surface 130 and the second surface 140 in the opposite inclination direction relative to the first direction, and the spacing between the first surface 130 and the second surface 140 gradually increases along the direction away from the first hole 110. By setting the first surface 130 and the second surface 140, the interference of the adjacent joints 100 during relative rotation can be reduced, thereby increasing the rotation angle of the adjacent joints 100, so as to improve the overall bendability and bending flexibility of the endoscope snake bone 10. In addition, the maximum bending angle of the adjacent joints 100 can be limited by the inclination angle of the first surface 130 and the second surface 140. When the first surface 130 and the second surface 140 are pressed against each other, the adjacent joints 100 are bent to the maximum angle.

[0045] Specifically, the first surface 130 and the second surface 140 can be set as inclined surfaces, which have higher stability when pressed against each other. The first surface 130 and the second surface 140 can also be set as curved surfaces, which are smoother when in contact with each other, and the process from the mutual movement of adjacent joints 100 to the pressing and locking is gradual, and the rigid collision of adjacent joints 100 is smaller.

[0046] Reference Figure 1 and Figure 4 In order to realize the mutual bending of adjacent joints 100, the endoscopic snake bone 10 also includes a connecting rib 200, which connects the two end faces of adjacent joints 100, and defines an opening 300 connected to the first hole 110 between the connecting rib 200 and the adjacent joints 100. The connecting rib 200 provides a structural connection for each joint 100 and serves as a fulcrum for bearing force during bending. The joints 100 are provided with second holes 150 that pass through along the first direction. The second holes 150 of adjacent joints 100 correspond one to one in the first direction. The traction wire is passed through each second hole 150. By pulling the traction wire, traction can be applied to each joint 100, so that the adjacent joints 100 rotate relative to each other, wherein the opening 300 will expand or shrink as the adjacent joints 100 bend.

[0047] The second holes 150 of the adjacent joints 100 correspond one to one in the first direction, which can be understood as the coaxial arrangement of the second holes 150 of the adjacent joints 100 in the first direction, so that the traction wire can smoothly pass through the second holes 150 to pull the endoscopic snake bone. Among them, the deviation of the axis within the allowable error range can also be considered as a coaxial arrangement.

[0048] Reference Figure 4 The condyle 100 has an outer wall 102 and an inner wall 101, the inner wall 101 defines the first hole 110, and the second holes 150 are distributed along the peripheral track of the first holes 110 on the cross section of the condyle 100 perpendicular to the axial direction of the first hole 110. The second holes 150 can be located inside the inner wall 101, which can be achieved by providing a piercing portion for opening the second holes 150 inside the inner wall 101 of the condyle 100. Alternatively, the second hole 150 can be located outside the outer wall 102, which can be achieved by providing a piercing portion for opening the second holes 150 on the outer wall 102 of the condyle 100.

[0049] Reference Figure 4, further, the second hole 150 is located between the outer wall 102 and the inner wall 101. Compared with providing a penetration portion in the first hole 110 or outside the condyle 100 for the traction wire to be penetrated, the second hole 150 is directly set between the outer wall 102 and the inner wall 101, which can reduce the interference with the first hole 110, thereby enabling the endoscope snake bone 10 to have a larger internal space, so as to reduce the difficulty of penetrating the endoscopic components or realize the setting of more endoscopic functional components, or, when the internal space is constant, the volume of the endoscope snake bone 10 can be reduced to reduce the difficulty of the endoscope snake bone 10 moving in the cavity of the subject. In some embodiments, the boundary of the second hole 150 and the first hole 110 is connected, so that the second hole 150 is connected to the first hole 110. Or, in other embodiments, the boundary of the second hole 150 and the first hole 110 has a certain distance, so that the second hole 150 can be relatively closed to the first hole 110. The embodiments in which the boundaries of the second hole 150 and the first hole 110 are connected or separated are all satisfied that the second hole 150 is located between the outer wall 102 and the inner wall 101. The specific positional relationship between the second hole 150 and the first hole 110 can be adaptively selected according to the process and actual needs.

[0050] Specifically, one or more second holes 150 can be provided on a single condyle 100, and the actual bending direction of the endoscope snake 10 is determined by the position of the traction wire and the connecting rib 200 passing through the second hole 150. For example, in an embodiment in which only one connecting rib 200 and one second hole 150 are provided, the endoscope snake 10 can only achieve unidirectional rotation.

[0051] Furthermore, the connecting rib 200 and the second hole 150 are staggered in the circumferential direction of the condyle 100. Since the connecting rib 200 is a fulcrum subjected to force during bending, it is subjected to greater force. Staggering the second hole 150 and the connecting rib 200 can reduce the influence of the hole position on the structural strength of the connecting rib 200, ensure the structural strength of the connecting rib 200, and when the second hole 150 and the connecting rib 200 are staggered, the utilization rate of the traction force can be improved, and the force required to drive the adjacent condyles 100 to bend can be reduced.

[0052] The connecting rib 200 and the second hole 150 are staggered in the circumferential direction of the condyle 100, which can be understood as taking a cross section perpendicular to the axial direction of the first hole 110 between adjacent condyles 100, and in the cross section, the axis of the second hole 150 and the connecting rib 200 are at least spaced apart in the circumferential direction of the condyle 100. The second hole 150 and the connecting rib 200 can partially overlap in the radial direction of the first hole 110, or can be completely staggered and have no overlap.

[0053] It can be understood that, by setting the second hole 150 between the outer wall 102 and the inner wall 101, compared with providing a penetration portion in the first hole 110 for the traction wire to penetrate, the radial distance between the second hole 150 and the connecting rib 200 is shorter than that of the first hole 110, and since the second hole 150 directly penetrates the wall of the condyle 100, the effect of the opening of the second hole 150 on the structural strength of the connecting rib 200 is increased. By staggering the connecting rib 200 and the second hole 150 in the circumferential direction of the condyle 100, the effect of the opening of the second hole 150 on the structural strength of the connecting rib 200 can be effectively reduced, so as to ensure that the connecting rib 200 has sufficient structural strength for bending support.

[0054] Reference Figure 1 and Figure 4 In some embodiments, in the same condyle 100, at least two second holes 150 are located on the same side of the condyle 100 in the third direction, and the third direction is perpendicular to the first direction, so that multiple traction wires can jointly drive adjacent condyles 100 to bend in the same direction. Compared with the related art that only controls the bending in a single direction by one traction wire, multiple traction wires can be driven together, which can increase the traction force, reduce the deformation of the traction wire, and reduce the load on a single traction wire, so as to reduce the possibility of traction wire breakage. Alternatively, under the condition of providing the same traction force, multiple traction wires with smaller diameters can be used for traction, reducing the size of a single traction wire.

[0055] On the other hand, when a single second hole 150 is used to pass a traction wire, a fixing structure is required to limit the head end of the traction wire to the outside of the second hole 150 to prevent the traction wire from slipping into the second hole 150 when being pulled, resulting in traction failure. When at least two second holes 150 are located on the same side of the condyle 100 in the third direction, the head end of the traction wire can be extended from one of the second holes 150 and then passed through another second hole 150, so as to pass through the first end 400 of the endoscope snake 10 and pass out from the second end 500, and then go back through another second hole 150 from the second section to the first end 400. Since the head end and the tail end of the traction wire are both located on the same side of the endoscope snake 10, traction can be performed by pulling the head end and the tail end of the traction wire at the same time, eliminating the need for a limiting operation of the head end of the traction wire, or the head end of the traction wire can be knotted with the traction wire itself or simply fixed, without the need for an additional fixing structure, thereby reducing costs and assembly difficulty.

[0056] Specifically, the second holes 150 located on the same side can be arranged adjacent to each other to facilitate the insertion of the traction wire, wherein the adjacent second holes 150 can be understood as the outer circle contours of the two second holes 150 being tangent, or can be understood as the outer circle contours of the two second holes 150 being connected. In other embodiments, there is a certain distance between the outer circle contours of the two second holes 150, and the normal use of the same traction wire after winding and passing through can be satisfied at this distance.

[0057] Reference Figure 2 , Figure 4 and Figure 5 In some embodiments, a plurality of connecting ribs 200 are connected between adjacent joints 100, and at least two connecting ribs 200 are arranged oppositely in the second direction so that the adjacent joints 100 can be bent along both sides of the third direction, wherein the second direction is perpendicular to the first direction, and both the first direction and the second direction are perpendicular to the third direction. By setting the positions of at least two connecting ribs 200, the bending of the endoscope snake bone 10 can be made more directionally controllable, the bending control is made more stable, and the control difficulty of medical staff during endoscopic operation is reduced. Specifically, two connecting ribs 200 can be connected between adjacent joints 100, and the two connecting ribs 200 are opposite in the second direction. Adjacent joints 100 can also be connected with a number of connecting ribs 200 that is a multiple of two, part of the connecting ribs 200 is located on one side in the second direction, and another part of the connecting ribs 200 is located on the other side in the second direction, and the connecting ribs 200 located on both sides in the second direction are opposite one to one.

[0058] Reference Figure 1 and Figure 4 Further, at least one second hole 150 is located on one side of the first hole 110 in the third direction, and at least one second hole 150 is located on the other side of the first hole 110 in the third direction. By providing at least one second hole 150 on both sides in the third direction, it is ensured that the traction wires on both sides can achieve the bending of the adjacent joints 100 on both sides in the third direction. In addition, the second hole 150 is centrally arranged in the second direction, so that the traction force of the traction wire can be applied more evenly, and the utilization rate of the traction force can be improved, ensuring that the traction wire can pull the adjacent joints 100 to a state where the facing end faces are tightly pressed.

[0059] It can be understood that the central setting can be understood as the second hole 150 is located on the midline of the line connecting the two connecting ribs 200, or the second hole 150 is located on the midline of the line connecting the two connecting ribs 200 within a range of 2 mm deviation on both sides of the second direction.

[0060] When there are multiple second holes 150 on one side in the third direction, multiple traction wires can be pulled in the same bending direction, and the probability of traction wire breakage can be reduced. The second holes 150 located on the same side can be arranged in sequence along the third direction. Alternatively, they can also be arranged in sequence along the second direction, and further, the midline of the line connecting the two second holes 150 can coincide with the midline of the line connecting the two connecting ribs 200, so that the joint 100 is more evenly stressed.

[0061] As another improvement of the above scheme, each joint 100 and the connecting rib 200 are integrally formed by injection molding. Both the joint 100 and the connecting rib 200 can be selected from conventional plastic or rubber materials in the art, specifically materials with good bending flexibility such as polypropylene or nylon, so as to have good bending characteristics while achieving integral injection molding. In addition, the injection molding method can make the thickness of each joint 100 and the connecting rib 200 thinner, for example, the thickness can be controlled between 0.25 and 0.6 mm, so that under the same joint 100 volume condition, the first hole 110 can have a larger aperture to facilitate the insertion of the clamp channel tube.

[0062] The endoscope according to the embodiment of the utility model includes the endoscope snake bone 10 in the above embodiment. By applying the endoscope snake bone 10 in the embodiment of the present application, the assembly of the fixing part 600 and the snake bone skin can be facilitated, the probability of glue overflow during bonding can be reduced, and the positioning accuracy of the fixing part 600 and the snake bone skin can be improved.

[0063] Specifically, the endoscope includes a traction wire, and the joints 100 of the endoscope snake bone 10 are provided with a plurality of second holes 150 extending along the first direction, and the second holes 150 of adjacent joints 100 correspond one-to-one in the first direction, and the plurality of second holes 150 corresponding one-to-one in the first direction of each joint 100 define a penetration channel, and the traction wire is penetrated in the penetration channel along the first direction. The traction wire is located at one end outside the second end 500, and can be converged by a convergence device such as a hand wheel, so as to facilitate the traction control of each traction wire.

[0064] The endoscope snake bone 10 includes a fixing part 600, and the endoscope also includes a snake bone skin and a clamp channel tube. An adhesive layer is provided in the groove 120, and the fixing part 600 and the snake bone skin are respectively bonded to the adhesive layer. Among them, the fixing part 600 and the snake bone skin can correspond to one or more grooves 120 respectively, or the fixing part 600 and the snake bone skin can also share one or more grooves 120. In the embodiment where the groove 120 is an annular groove, the snake bone skin can also be tied and fixed in the groove 120 by winding a silk thread. The clamp channel tube is inserted into the first hole, and the clamp channel tube is used to insert endoscopic instruments such as a camera.

[0065] Furthermore, one end of the traction wire, which is located outside the body of the subject and is used for operation, can be tightened by a tightening device such as a hand wheel, thereby facilitating the traction control of each traction wire.

[0066] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. Endoscopic snake bone, characterized in that, include: A plurality of bone segments, each of which is arranged in sequence along a first direction, each of which is provided with a first hole extending along the first direction, each of which has a one-to-one correspondence with the first holes in the first direction, and at least one of which has a groove on its outer surface, the groove being used to fix the snake skin or a fixing member; Wherein, the joints are connected in sequence, and adjacent joints can rotate relative to each other.

2. The endoscope snake bone according to claim 1, characterized in that: In a first direction, the endoscopic snake has a first end and a second end opposite to each other, and at least one of the condyle located at the first end and the condyle located at the second end is provided with the groove.

3. The endoscope snake bone according to claim 1 or 2, characterized in that: The groove surrounds the outer surface of the condyle along the circumference of the condyle.

4. The endoscope snake according to claim 3, characterized in that: It also includes a fixing piece, which is sleeved in the groove, and in the first direction, the size of the groove is larger than the size of the fixing piece.

5. The endoscope snake bone according to claim 1, characterized in that: The joint is provided with a plurality of second holes extending along the first direction, and the second holes are used for passing traction wires. The second holes of adjacent joints correspond one to one in the first direction. In the same joint, at least two second holes are located on the same side of the first hole in a third direction, and the third direction is perpendicular to the first direction.

6. The endoscope snake according to claim 1, characterized in that: The end surfaces of the adjacent bone joints facing each other are respectively provided with a first surface and a second surface intersecting in a normal direction, and the distance between the first surface and the second surface gradually increases in a direction away from the first hole.

7. The endoscope snake according to claim 1, characterized in that: The condyle is provided with a second hole for passing a traction wire, and the second holes of adjacent condyles correspond one to one in the first direction; the condyle has an outer wall and an inner wall, the inner wall defines the first hole, and the second hole is located between the outer wall and the inner wall.

8. The endoscope snake according to claim 1, characterized in that: It also includes connecting ribs, which connect the two end surfaces of adjacent joints that are facing each other; the joints are provided with a plurality of second holes that pass through along the first direction, and the second holes are used to pass traction wires, and the second holes of adjacent joints correspond one to one in the first direction, wherein the connecting ribs and the second holes are staggered in the circumferential direction of the joints.

9. The endoscope snake according to claim 8, characterized in that: Each of the bone joints and each of the connecting ribs are integrally formed.

10. An endoscope, characterized in that include: The endoscopic snake bone according to any one of claims 1 to 9.

Images