Endoscope snake bone

Abstract

The utility model discloses an endoscope snake bone in the field of endoscopes, which comprises a plurality of first snake bones and second snake bones, the first snake bones and the second snake bones are arranged in a staggered manner, and a plurality of openings are formed between the adjacent first snake bones and second snake bones; an elastic piece structure is arranged in the opening, one end of the elastic piece structure is connected with the first snake bone, and the other end of the elastic piece structure is connected with the second snake bone. The problem that the overall manufacturing cost of the endoscope is increased due to the fact that the woven mesh is additionally arranged on the outer side of the snake bone of an existing endoscope is solved, the elastic piece structure can prevent the rubber from entering the opening, additional woven mesh materials and machining cost are not needed, the overall manufacturing cost of the endoscope can be reduced, and production benefits are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopes, and specifically, to an endoscope snake bone. Background Art

[0002] An endoscope is a widely used medical and industrial inspection instrument, which realizes bending and turning by pulling a plurality of mutually connected snake bone joints through a traction steel wire rope. The traction steel wire rope is connected to the inner side of the snake bone joint through a connecting structure to realize the traction of the snake bone joint. When a force is applied to the operating end, the traction steel wire rope can quickly and accurately drive the snake bone joint to bend and turn according to a predetermined trajectory. At the same time, adjacent snake bone joints are hinged to each other to realize relative rotation.

[0003] In the existing endoscope snake bone, the outer side of the endoscope snake bone is usually wrapped with rubber. During the bending process of the endoscope snake bone, the endoscope snake bone is likely to pinch and break the rubber. After the rubber is pinched and broken, it not only easily affects the sealing performance of the endoscope, allowing moisture or other liquids to penetrate, thereby corroding the snake bone or affecting the imaging quality, but also may cause potential harm to patients or inspection objects, seriously affecting the normal use and safety of the endoscope. To solve this problem, a braided mesh is added to the outer side of the existing endoscope snake bone. The braided mesh prevents the rubber from being pinched and broken with its high strength and wear resistance characteristics, so as to avoid the phenomenon of pinching the rubber during the use of the endoscope snake bone. However, the cost of the braided mesh is high, increasing the overall manufacturing cost of the endoscope.

[0004] The above defects need to be solved urgently. Summary of the Utility Model

[0005] To solve the problem that adding a braided mesh to the outer side of the existing endoscope snake bone increases the overall manufacturing cost of the endoscope, the utility model provides an endoscope snake bone.

[0006] The technical solution of the utility model is as follows:

[0007] An endoscope snake bone includes a plurality of first snake bones and second snake bones. The first snake bones and the second snake bones are arranged alternately, and a plurality of openings are formed between adjacent first snake bones and second snake bones;

[0008] A shrapnel structure is arranged in the opening. One end of the shrapnel structure is connected to the first snake bone, and the other end of the shrapnel structure is connected to the second snake bone.

[0009] According to the utility model of the above solution, notches facing the opening are arranged on the upper parts of the first snake bone and the second snake bone, and convex parts facing the opening are arranged on the lower parts of the first snake bone and the second snake bone;

[0010] The elastic piece structure includes a bending section, a first connecting section, and a second connecting section. The bending section is disposed between the first connecting section and the second connecting section, and the bending section cooperates with the notch and the convex portion.

[0011] The first connecting section is connected to one of the first snake bone and the second snake bone, and the second connecting section is connected to the other of the first snake bone and the second snake bone.

[0012] In the present utility model according to the above solution, the bending section is formed by bending downward from the first connecting section and the second connecting section. One end of the first connecting section away from the bending section bends upward, and one end of the second connecting section away from the bending section bends downward.

[0013] In the present utility model according to the above solution, the width of the convex portion and the width of the bending section are both smaller than the width of the notch.

[0014] In the present utility model according to the above solution, a plurality of first connecting portions and second connecting portions are provided on both the first snake bone and the second snake bone;

[0015] The first connecting portion of the first snake bone is connected to the second connecting portion of an adjacent second snake bone, and the second connecting portion of the first snake bone is connected to the first connecting portion of another adjacent second snake bone, so that a plurality of the openings are formed between the first snake bone and the second snake bone.

[0016] In the present utility model according to the above solution, the first connecting portion includes an annular groove, and the second connecting portion includes an annular convex portion. The annular convex portion is rotatably received in the annular groove.

[0017] In the present utility model according to the above solution, the width of the open end of the annular groove is smaller than the width of the annular convex portion.

[0018] In the present utility model according to the above solution, first annular arms are respectively provided on both sides of the annular convex portion, and first annular grooves are respectively provided on both sides of the annular groove. The first annular arms are rotatably received in the first annular grooves.

[0019] In the present utility model according to the above solution, second annular arms are respectively provided on both sides of the first annular groove, and second annular grooves are respectively provided on both sides of the first annular groove. The second annular arms are rotatably received in the second annular grooves.

[0020] In the present utility model according to the above solution, the center of the annular convex portion coincides with the center of the first annular arm.

[0021] In the present utility model according to the above solution, the opening between the first snake bone and an adjacent second snake bone is the first opening, and there are two first openings;

[0022] The opening between the first snake bone and another adjacent second snake bone is the second opening, and there are two second openings;

[0023] The first opening and the second opening are arranged in a vertically offset manner, and the connection line between the two first openings is perpendicular to the connection line between the two second openings.

[0024] The beneficial effects of the present utility model according to the above solution are as follows:

[0025] In the above endoscopic snake bone, a shrapnel structure is arranged in the opening. The shrapnel structure can divide the opening into two small openings, reducing the movement gap of the opening by half. When the endoscopic snake bone is bent, the shrapnel structure can play a blocking role to prevent the rubber on the outer side of the endoscopic snake bone from entering the opening, thereby avoiding the endoscopic snake bone from clamping and breaking the rubber. Compared with adding a braided net on the outer side of the traditional endoscopic snake bone, the present utility model does not require additional braided net materials and their processing costs, can reduce the overall manufacturing cost of the endoscope, and improve production efficiency. In addition, one end of the shrapnel structure is connected to the first snake bone, and the other end of the shrapnel structure is connected to the second snake bone, so that the shrapnel structure is inclined in the opening, further preventing the rubber on the outer side of the endoscopic snake bone from entering the opening and improving the anti-clamping rubber effect of the present utility model. Description of the Drawings

[0026] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0027] Figure 2 is Figure 1 the enlarged view of part A in

[0028] Figure 3 is the second structural schematic diagram of the present utility model;

[0029] Figure 4 is Figure 3 the enlarged view of part B in

[0030] Figure 5 is the partial structural schematic diagram of the present utility model.

[0031] In the figure, 1 is the first snake bone; 2 is the second snake bone; 3 is the first connecting part; 31 is the annular groove; 32 is the first annular groove; 33 is the second annular arm; 4 is the second connecting part; 41 is the annular protrusion; 42 is the first annular arm; 43 is the second annular groove; 5 is the opening; 51 is the first opening; 52 is the second opening; 6 is the elastic piece structure; 61 is the bending section; 62 is the first connecting section; 63 is the second connecting section; 7 is the notch; 8 is the protrusion. Detailed implementation mode

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] As Figure 1 shown, the present utility model provides an endoscope snake bone, which includes a plurality of first snake bones 1 and second snake bones 2. The first snake bones 1 and the second snake bones 2 are arranged alternately, and a plurality of openings 5 are formed between adjacent first snake bones 1 and second snake bones 2. The first snake bones 1 and the second snake bones 2 are connected in series by traction lines, and adjacent first snake bones 1 and second snake bones 2 are rotatably connected. The openings 5 are used to adjust the distance between adjacent first snake bones 1 and second snake bones 2, so as to realize the bending of the endoscope snake bone. In addition, the endoscope snake bone of the present utility model is integrally formed, and the first snake bone 1 and the second snake bone 2 are formed by laser cutting, which makes the production and processing simpler and improves the production efficiency.

[0034] As Figure 1 、 Figure 2As shown, in this embodiment, a number of first connecting portions 3 and second connecting portions 4 are provided on both the first snake bone 1 and the second snake bone 2. The first connecting portion 3 of the first snake bone 1 is connected to the second connecting portion 4 of an adjacent second snake bone 2, and the second connecting portion 4 of the first snake bone 1 is connected to the first connecting portion 3 of another adjacent second snake bone 2, so that a number of openings 5 are formed between the first snake bone 1 and the second snake bone 2. A shrapnel structure 6 is arranged in the opening 5. The shrapnel structure 6 can divide the opening 5 into two small openings, reducing the moving gap of the opening 5 by half. When the endoscope snake bone is bent, the shrapnel structure 6 can play a blocking role to prevent the rubber on the outer side of the endoscope snake bone from entering the opening 5, thereby avoiding the endoscope snake bone from clamping and breaking the rubber. Compared with adding a braided mesh on the outer side of the traditional endoscope snake bone, the present utility model does not require additional braided mesh materials and their processing costs, can reduce the overall manufacturing cost of the endoscope, improve production efficiency, enable the bending angle to easily achieve a large angle bending of 210°, and have stable bending performance. In addition, one end of the shrapnel structure 6 is connected to the first snake bone 1, and the other end of the shrapnel structure 6 is connected to the second snake bone 2, so that the shrapnel structure 6 is inclined in the opening 5, further preventing the rubber on the outer side of the endoscope snake bone from entering the opening 5 and improving the rubber clamping prevention effect of the present utility model. In addition, the shrapnel structure 6 spans the entire opening 5, further improving the rubber clamping prevention effect of the endoscope snake bone.

[0035] As Figures 2 to 5As shown, in this embodiment, notches 7 facing the opening 5 are provided at the upper parts of the first snake bone 1 and the second snake bone 2, and protrusions 8 facing the opening 5 are provided at the lower parts of the first snake bone 1 and the second snake bone 2. The shrapnel structure 6 includes a bending section 61, a first connecting section 62, and a second connecting section 63. The bending section 61 is arranged between the first connecting section 62 and the second connecting section 63. The bending section 61 cooperates with the notch 7 and the protrusion 8, and the shape of the bending section 61 is adapted to the shapes of the notch 7 and the protrusion 8, which can enhance the structural stability and improve the smoothness and accuracy of the endoscope snake bone during the bending process. When the endoscope snake bone bends greatly, the corresponding first protrusion 8 and the shrapnel structure 6 are accommodated in the corresponding notch 7, thereby improving the compressive strength of the endoscope snake bone after bending and reducing the occurrence of the endoscope snake bone being crushed by pressure after bending. In this embodiment, the first connecting section 62 of the shrapnel structure 6 is connected to one of the first snake bone 1 and the second snake bone 2, and the second connecting section 63 of the shrapnel structure 6 is connected to the other of the first snake bone 1 and the second snake bone 2, so as to realize that the shrapnel structure 6 is obliquely arranged in the opening 5, further preventing the endoscope snake bone from clamping and breaking the rubber sheet. In addition, the bending section 61 is formed by bending downward from the first connecting section 62 and the second connecting section 63. One end of the first connecting section 62 away from the bending section 61 bends upward, and one end of the second connecting section 63 away from the bending section 61 bends downward, so that when the endoscope snake bone bends, the shrapnel structure 6 can better adapt to the opening 5 and provide more deformation space. In addition, the width of the protrusion 8 and the width of the bending section 61 of the shrapnel structure 6 are both smaller than the width of the notch 7, preventing the protrusion 8 and the bending section 61 of the shrapnel structure 6 from being stuck in the notch 7 and unable to recover, thereby avoiding bending difficulties or structural damage caused by jamming and improving the flexibility and freedom of the endoscope snake bone during bending.

[0036] As Figures 1 to 5As shown, in this embodiment, both the first connecting portions 3 and the second connecting portions 4 are provided in two. The two first connecting portions 3 and the two second connecting portions 4 are arranged opposite to each other along the radial direction of the first snake bone 1 or the second snake bone 2. And the two first connecting portions 3 are located on the same straight line, and the two second connecting portions 4 are located on the same straight line, which improves the overall strength and torsional resistance of the connecting structure, makes the connection between adjacent snake bone units more stable, and facilitates the bending of the endoscope snake bone. Specifically, the first connecting portion 3 includes an annular groove 31, and the second connecting portion 4 includes an annular protrusion 41. The shape of the annular groove 31 is adapted to that of the annular protrusion 41, and the annular protrusion 41 can be rotatably received in the annular groove 31. In addition, the width of the opening 5 end of the annular groove 31 is smaller than the width of the annular protrusion 41, that is, the opening 5 end of the annular groove 31 contracts to prevent the annular protrusion 41 from disengaging from the annular groove 31. Additionally, both the annular protrusion 41 and the annular groove 31 are located on the annular side wall of the first snake bone 1 or the second snake bone 2, so both the annular protrusion 41 and the annular groove 31 have a radian. At the same time, the inner wall of the annular groove 31 is smooth and the surface of the annular protrusion 41 is smooth, which can reduce the frictional resistance when the two rotate relative to each other.

[0037] As Figure 2 , Figure 3 , Figure 5 As shown, in this embodiment, first annular arms 42 are respectively provided on both sides of the annular protrusion 41, and first annular grooves 32 are respectively provided on both sides of the annular groove 31. The first annular arms 42 can be rotatably received in the first annular grooves 32, which can enhance the connection strength between the first connecting portion 3 and the second connecting portion 4. When the snake bone unit is bent under force, when the adjacent first snake bone 1 and the second snake bone 2 rotate relative to each other, the first annular arms 42 can rotate relative to each other in the first annular grooves 32. The force between the adjacent first snake bone 1 and the second snake bone 2 can be dispersed between the annular protrusion 41 and the annular groove 31, and between the first annular arms 42 and the first annular grooves 32, avoiding force concentration and preventing the first connecting portion 3 and the second connecting portion 4 of the adjacent first snake bone 1 and the second snake bone 2 from being deformed under force, which affects the normal use of the endoscope snake bone. Additionally, second annular arms 33 are respectively provided on both sides of the first annular groove 32, and second annular grooves 43 are respectively provided on both sides of the first annular groove 32. The second annular arms 33 can be rotatably received in the second annular grooves 43, further enhancing the connection strength between the first connecting portion 3 and the second connecting portion 4.

[0038] As Figure 2 , Figure 3 , Figure 5As shown, in this embodiment, the center of the annular protrusion 41 coincides with the center of the first annular arm 42, ensuring the balanced distribution of the first annular arm 42 on both sides of the annular protrusion 41, and also ensuring the synchronization of the two during rotation and force. When the annular protrusion 41 rotates with the relative movement of the first serpentine 1 or the second serpentine 2, the first annular arm 42 can closely follow, and can maintain the same rotation center as the annular protrusion 41 at any angle or direction, thereby avoiding additional friction and stress caused by offset or misalignment. In addition, the center of the annular groove 31 coincides with the center of the first annular groove 32, ensuring that when the annular protrusion 41 and its first annular arm 42 rotate and are accommodated in the annular groove 31 and the first annular groove 32, the contact surface can achieve the best fit and stability, thereby enhancing the overall strength and durability of the connection structure.

[0039] like Figure 2 , Figure 3 , Figure 5 As shown, in this embodiment, the opening 5 between the first serpentine 1 and an adjacent second serpentine 2 can be designed as a first opening 51, and there are two first openings 51, and the two first openings 51 are symmetrically arranged on both sides of the first serpentine 1 or the second serpentine 2. At the same time, the opening 5 between the first serpentine 1 and another adjacent second serpentine 2 can be designed as a second opening 52, and there are two second openings 52, and the two second openings 52 are symmetrically arranged on both sides of the first serpentine 1 or the second serpentine 2. In addition, the first opening 51 and the second opening 52 are staggered up and down, and the line between the two first openings 51 is perpendicular to the line between the two second openings 52, so that the endoscope serpentine can be rotated in four directions, and the twisting and rotation angles of the serpentine unit can be adjusted more freely and accurately. Of course, in actual design, the number of first openings 51 and the number of second openings 52 can be designed according to actual needs.

[0040] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0041] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An endoscope snake bone, characterized in that, It includes a number of first snake bones and second snake bones. The first snake bones and the second snake bones are arranged alternately, and a number of openings are formed between adjacent first snake bones and second snake bones. A shrapnel structure is arranged in the opening. One end of the shrapnel structure is connected to the first snake bone, and the other end of the shrapnel structure is connected to the second snake bone.

2. The endoscope snake bone according to claim 1, wherein Notches facing the opening are arranged on the upper parts of the first snake bone and the second snake bone, and protrusions facing the opening are arranged on the lower parts of the first snake bone and the second snake bone. The shrapnel structure includes a bending section, a first connecting section, and a second connecting section. The bending section is arranged between the first connecting section and the second connecting section, and the bending section cooperates with the notch and the protrusion. The first connecting section is connected to one of the first snake bone and the second snake bone, and the second connecting section is connected to the other of the first snake bone and the second snake bone.

3. The endoscope snake bone according to claim 2, characterized in that The bending section is formed by bending downward from the first connecting section and the second connecting section. One end of the first connecting section away from the bending section bends upward, and one end of the second connecting section away from the bending section bends downward.

4. The endoscope snake bone according to claim 2, characterized in that The width of the protrusion and the width of the bending section are both smaller than the width of the notch.

5. The endoscopic snake bone according to claim 1, characterized in that, A number of first connecting parts and second connecting parts are arranged on both the first snake bone and the second snake bone. The first connecting part of the first snake bone is connected to the second connecting part of an adjacent second snake bone, and the second connecting part of the first snake bone is connected to the first connecting part of another adjacent second snake bone, so that a number of the openings are formed between the first snake bone and the second snake bone.

6. The endoscope snake bone according to claim 5, characterized in that, The first connecting part includes an annular groove, and the second connecting part includes an annular protrusion. The annular protrusion can be rotatably received in the annular groove.

7. The endoscope snake bone according to claim 6, characterized in that, First annular arms are respectively arranged on both sides of the annular protrusion, and first annular grooves are respectively arranged on both sides of the annular groove. The first annular arms can be rotatably received in the first annular grooves.

8. The endoscope snake bone according to claim 7, characterized in that, Second annular arms are respectively arranged on both sides of the first annular groove, and second annular grooves are respectively arranged on both sides of the first annular groove. The second annular arms can be rotatably received in the second annular grooves.

9. The endoscope snake bone according to claim 7, wherein The center of the annular protrusion coincides with the center of the first annular arm.

10. The endoscope snake bone according to claim 1, characterized in that, The opening between the first snake bone and an adjacent second snake bone is a first opening, and there are two first openings. The opening between the first snake bone and another adjacent second snake bone is a second opening, and there are two second openings. The first opening and the second opening are arranged vertically offset, and the line connecting the two first openings is perpendicular to the line connecting the two second openings.

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