Snake bone for endoscope

Abstract

The utility model discloses a snake bone for an endoscope. The snake bone comprises a head connecting section, a snake bone main body and a tail connecting section, the snake bone main body consists of a plurality of groups of snake bone joints; hinge structures are arranged between the head connecting section and the snake bone joints, between every two adjacent sets of snake bone joints and between the snake bone joints and the tail connecting section. The hinge structure comprises a connecting male buckle and a connecting female buckle; the connecting male buckle comprises a connecting part and arc-shaped grooves formed in the two sides of the connecting part, and the arc-shaped grooves and the connecting part are concentric; the connecting female buckle comprises a connecting groove and arc-shaped parts arranged on the two sides of the connecting groove, and the arc-shaped parts and the connecting groove are concentric. When the connecting male buckle is matched with the connecting female buckle, the arc-shaped part is matched with the arc-shaped groove; and the connecting part is matched with the connecting groove. When the snake bone for the endoscope is integrally assembled, the installation direction can be conveniently and quickly observed, so that the assembly efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of endoscope processing, and specifically relates to a snake bone for endoscopes. Background Technology

[0002] An endoscope is a detection instrument that integrates traditional optics, ergonomics, precision mechanics, modern electronics, mathematics, and software. It has an image sensor, optical lens, light source illumination, water and air control, etc. It can enter the stomach through the mouth or other natural orifices into the body. Endoscopes can be used to see lesions that cannot be seen by X-rays and other medical equipment.

[0003] Snake-like structures are used in the curved section of endoscopes, where the endoscope's bending and turning are achieved by pulling a steel wire placed inside the snake-like structure. However, currently used snake-like structures are all universal joint structures, manufactured using processes such as cutting steel pipes, welding, and riveting. The bending function is achieved through cut bendable grooves and steel wires threaded through fixing holes.

[0004] However, common snake bones on the market have drawbacks such as jamming, difficult operation, inconvenience in distinguishing directions during assembly, and complex processing. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a snake bone for endoscopes. The snake bone for endoscopes allows for convenient and quick observation of the installation direction during overall assembly, thereby improving assembly efficiency.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is:

[0007] An endoscopic snake skeleton includes a snake skeleton body, a head connecting section and a tail connecting section disposed at both ends of the snake skeleton body, wherein the snake skeleton body is composed of multiple sets of snake skeleton joints; and a hinge structure is provided between the head connecting section and the snake skeleton joints, between two adjacent sets of snake skeleton joints, and between the snake skeleton joints and the tail connecting section.

[0008] The hinge structure includes a male connector and a female connector that mates with the male connector, wherein...

[0009] The male connector includes a connecting part and arc-shaped grooves disposed on both sides of the connecting part, wherein the arc-shaped grooves are concentric with the connecting part;

[0010] The connecting female buckle includes a connecting groove and arc-shaped portions disposed on both sides of the connecting groove, wherein the arc-shaped portions are concentric with the connecting groove;

[0011] When the male connector and the female connector are engaged, the arc-shaped portion engages with the arc-shaped groove; the connecting portion engages with the connecting groove.

[0012] A direction-identifying hole is provided at the center of the male buckle of one of the two adjacent sets of hinge structures.

[0013] Preferably, the included angle between two adjacent sets of hinge structures is 90 degrees.

[0014] Preferably, the connecting portion is provided with a groove, and the bottom of the groove is provided with an arc-shaped convex surface. The groove is provided with a first limiting surface on both sides of the arc-shaped convex surface, and the first limiting surface extends obliquely upward. Correspondingly, the connecting groove is provided with a boss at a position corresponding to the groove. The top of the boss is provided with an arc-shaped concave surface that cooperates with the arc-shaped convex surface. The boss is provided with a second limiting surface on both sides of the arc-shaped concave surface, and the second limiting surface extends obliquely downward. The first limiting surface and the second limiting surface have the same inclination angle.

[0015] Preferably, the bottom of the arc-shaped groove is provided with a third limiting surface that extends downward at an angle; correspondingly, the top of the arc-shaped portion is provided with a fourth limiting surface that extends upward at an angle; the third limiting surface and the fourth limiting surface have the same angle of inclination.

[0016] Preferably, the concave surface, the convex surface, the connecting portion, and the connecting groove are all concentric.

[0017] Preferably, the male connector is disposed on the snake joint and the head connecting segment and / or the tail connecting segment; the female connector is disposed on the snake joint and the tail connecting segment and / or the head connecting segment.

[0018] Preferably, the snake-bone joint and the head connecting segment and / or the tail connecting segment are provided with a first inclined surface on both sides of the male connecting buckle; the snake-bone joint and the tail connecting segment and / or the head connecting segment are provided with a second inclined surface on both sides of the female connecting buckle; the first inclined surface and the second inclined surface are inclined in opposite directions.

[0019] Preferably, except for the angle between the first limiting surface and the bottom of the arc-shaped groove, the angle between the second limiting surface and the bottom of the connecting groove, and the angle between the third limiting surface and the arc-shaped convex surface, the remaining corners of the male connecting buckle and the female connecting buckle are rounded.

[0020] Preferably, both the head connecting segment and the tail connecting segment are provided with positioning grooves.

[0021] Preferably, the head connecting section, the snake bone joint, and the tail connecting section are all provided with threading grooves.

[0022] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0023] 1. In the endoscope snake bone of this utility model, a direction-identifying hole is provided at the center position of one of the connecting male buckles of two adjacent sets of hinge structures. This allows for convenient and quick observation of the installation direction and angle when assembling the endoscope snake bone of this utility model, thereby improving assembly efficiency and thus increasing the production efficiency of the endoscope snake bone of this utility model.

[0024] 2. In the endoscopic snake bone of this utility model, each joint (including the head connecting section, the snake bone joint and the tail connecting section) is connected by a male and female fastener to form a hinge structure. This ensures that the endoscopic snake bone of this utility model will not jam when bent. In addition, the hinge structure can also limit the bending angle of the endoscopic snake bone of this utility model in both directions to prevent the endoscopic snake bone of this utility model from being over-bent. Attached Figure Description

[0025] Figures 1-3 This is a schematic diagram of the snake bone for endoscopy of this utility model from three different perspectives.

[0026] Figures 4-7 The diagram shows the structure of the tail section from four different perspectives.

[0027] Figures 8-11 This is a structural diagram of the head connector segment from four different perspectives.

[0028] Figures 12-15 These are structural diagrams of the snake-bone joint from four different perspectives.

[0029] Figure 16 This is a schematic diagram of the structure for connecting the female buckle.

[0030] Figure 17 This is a schematic diagram of the structure for connecting the male buckle.

[0031] In the diagram: 1-Head connecting section; 2-Snake bone joint; 3-Tail connecting section; 4-Hinged structure; 5-Positioning groove; 6-Threading groove; 7-Connecting female buckle; 701-Connecting groove; 702-Arc-shaped part; 703-Fourth limiting surface; 704-Arc-shaped concave surface; 705-Second limiting surface; 8-Connecting male buckle; 801-Connecting part; 802-Arc-shaped groove; 803-Third limiting surface; 804-Arc-shaped convex surface; 805-First limiting surface; 9-Second inclined surface; 10-First inclined surface. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0033] See Figures 1-17The endoscopic snake skeleton of this utility model includes a snake skeleton body, a head connecting section 1 and a tail connecting section 3 disposed at both ends of the snake skeleton body, wherein the snake skeleton body is composed of multiple sets of snake skeleton joints 2; a hinge structure 4 is provided between the head connecting section 1 and the snake skeleton joint 2, between two adjacent sets of snake skeleton joints 2, and between the snake skeleton joint 2 and the tail connecting section 3; the hinge structure 4 includes a male connecting buckle 8 and a female connecting buckle 7 that mates with the male connecting buckle 8, wherein...

[0034] The connecting male buckle 8 includes a connecting part 801 and arc-shaped grooves 802 disposed on both sides of the connecting part 801, wherein the arc-shaped grooves 802 are concentric with the connecting part 801;

[0035] The connecting female buckle 7 includes a connecting groove 701 and arc-shaped portions 702 disposed on both sides of the connecting groove 701, wherein the arc-shaped portions 702 are concentric with the connecting groove 701;

[0036] When the male connector 8 and the female connector 7 are engaged, the arc-shaped portion 702 engages with the arc-shaped groove 802; the connecting portion 801 engages with the connecting groove 701.

[0037] In this embodiment, the included angle between two adjacent sets of hinge structures 4 is 90 degrees; this enables the endoscopic snake bone of this utility model to bend in both directions, that is, to bend left and right and bend forward and backward.

[0038] See Figures 1-17 The connecting portion 801 is provided with a groove, and the bottom of the groove is provided with an arc-shaped convex surface 804. The groove is provided with first limiting surfaces 805 on both sides of the arc-shaped convex surface 804, and the first limiting surfaces 805 extend obliquely upward. Correspondingly, the connecting groove 701 is provided with a boss at a position corresponding to the groove. The top of the boss is provided with an arc-shaped concave surface 704 that cooperates with the arc-shaped convex surface 804. The boss is provided with second limiting surfaces 705 on both sides of the arc-shaped concave surface 704, and the second limiting surfaces 705 extend obliquely downward. The first limiting surface 805 and the second limiting surface 705 have the same inclination angle.

[0039] In addition, the bottom of the arc-shaped groove 802 is provided with a third limiting surface 803 that extends downward at an incline; correspondingly, the top of the arc-shaped portion 702 is provided with a fourth limiting surface 703 that extends upward at an incline; the third limiting surface 803 and the fourth limiting surface 703 have the same inclination angle.

[0040] In this embodiment, the curvature of the groove is greater than the curvature of the boss;

[0041] Through the above settings, the relative rotation angle between the male connector 8 and the female connector 7 can be limited. That is, when the male connector 8 and the female connector 7 rotate to the point where the first limiting surface 805 is in contact with the second limiting surface 705, or when the third limiting surface 803 and the fourth limiting surface 703 are in contact, the male connector 8 and the female connector 7 can no longer rotate, thereby limiting the relative rotation angle between the male connector 8 and the female connector 7.

[0042] Furthermore, by setting the groove and the boss, the limiting can be made more secure and reliable, and the structure is simple, reducing the laser cutting path and reducing production time and manufacturing costs.

[0043] See Figures 1-17 A direction-identifying hole 11 is provided at the center position of one of the connecting male buckles 8 in two adjacent sets of hinge structures 4; by providing the direction-identifying hole 11, the installation direction and installation angle can be easily and quickly observed when assembling the endoscope snake bone of this utility model, thereby improving the assembly efficiency of the endoscope snake bone of this utility model.

[0044] See Figures 1-17 The concave surface 704, the convex surface 804, the connecting part 801, and the connecting groove 701 are all concentric; this ensures that the male connecting buckle 8 and the female connecting buckle 7 can rotate around the same pivot point when they rotate relative to each other, thereby improving the accuracy and smoothness of the snake bone for the endoscope of this utility model when bending.

[0045] See Figures 1-17 The male connector 8 is disposed on the snake joint 2 and the head connecting segment 1 or / and the tail connecting segment 3; the female connector 7 is disposed on the snake joint 2 and the tail connecting segment 3 or / and the head connecting segment 1.

[0046] In this embodiment, the male connector 8 and the female connector 7 in the hinge structure 4 can be selected to be placed on the corresponding components as needed; in addition, the male connector 8 and the female connector 7 can be integrally formed with the corresponding components.

[0047] See Figures 1-17 The snake joint 2 and the head connecting segment 1 and / or the tail connecting segment 3 are provided with first inclined surfaces 10 on both sides of the male connecting buckle 8; the snake joint 2 and the tail connecting segment 3 and / or the head connecting segment 1 are provided with second inclined surfaces 9 on both sides of the female connecting buckle 7; the first inclined surfaces 10 and the second inclined surfaces 9 are inclined in opposite directions;

[0048] By setting the first inclined surface 10 and the second inclined surface 9, the bending angle between two adjacent joints in the endoscopic snake bone of this utility model can be limited, thereby avoiding excessive bending between two adjacent joints.

[0049] In this embodiment, the tilt angles of the first inclined surface 10 and the second inclined surface 9 can be adjusted according to product requirements.

[0050] See Figures 1-17 Except for the angle between the first limiting surface 805 and the bottom of the arc-shaped groove 802, the angle between the second limiting surface 705 and the bottom of the connecting groove 701, and the angle between the third limiting surface 803 and the arc-shaped convex surface 804, the aforementioned angles can be right angles; the remaining corners of the connecting male buckle 8 and the connecting female buckle 7 are all rounded. Thus, during the joint movement of the endoscope skeleton of this invention, the rounded corner design can reduce jamming caused by manufacturing processes, making the endoscope skeleton of this invention more flexible and smooth, thereby greatly improving the user experience. In addition, the above-mentioned design can reduce manufacturing errors, thereby maximizing the bending angle of the endoscope skeleton of this invention, and further reducing the error value of the bending angle between processed skeletons, thus ensuring that the specifications of the endoscope skeleton of this invention are more uniform and the yield rate is higher.

[0051] See Figures 1-17 The head connecting section 1, the snake bone joint 2, and the tail connecting section 3 are all provided with threading grooves 6; by designing threading positions on the whole snake bone, the steel wire rope can run through the entire snake bone, increasing the traction response of the snake bone, reducing the bending angle, and making it easier for the endoscopic snake bone of this utility model to achieve a smaller bending radius while meeting the bending angle, so as to ensure that it can be manipulated with ease during the operation.

[0052] See Figures 1-17 Both the head connecting section 1 and the tail connecting section 3 are designed with positioning grooves 5. The positioning grooves 5 can prevent the parts from being installed incorrectly during assembly, thereby greatly reducing the risk of assembly errors.

[0053] See Figures 1-17 The snake bone for endoscope of this utility model is made of stainless steel round tube laser cutting. Through a special oblique cutting process, the snake bone joint 2 is tightly fitted with the snake bone joint 2 but will not fall off. The overall structure consists of head connecting end - snake bone joint 2 - snake bone joint 2 - tail connecting section 3. The number of snake bone joint 2 can be increased or decreased according to the actual required length of the snake bone.

[0054] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. An endoscope snake comprising a snake body, a head connecting section and a tail connecting section provided at both ends of the snake body, wherein, The snake bone body is composed of multiple groups of snake bone joints; a hinging structure is arranged between the head connecting section and the snake bone joint, between two adjacent groups of snake bone joints, and between the snake bone joint and the tail connecting section; characterized in that, The hinging structure comprises a connecting male buckle and a connecting female buckle matched with the connecting male buckle, wherein, The connecting male buckle comprises a connecting part and arc-shaped grooves arranged on both sides of the connecting part, and the arc-shaped grooves and the connecting part have the same center; The connecting female buckle comprises a connecting groove and arc-shaped parts arranged on both sides of the connecting groove, and the arc-shaped parts and the connecting groove have the same center; When the connecting male buckle is matched with the connecting female buckle, the arc-shaped parts are matched with the arc-shaped grooves, and the connecting part is matched with the connecting groove; A direction-distinguishing hole is arranged at the center position of one of the connecting male buckles in one of the two adjacent groups of hinging structures.

2. The snake bone for an endoscope according to claim 1, characterized by The included angle between the two adjacent groups of hinging structures is 90 degrees.

3. The snake bone for an endoscope according to claim 2, characterized by A recess is arranged on the connecting part, an arc-shaped convex surface is arranged on the groove bottom of the recess, first limiting surfaces are arranged on both sides of the arc-shaped convex surface, and the first limiting surfaces extend upward in an inclined manner; correspondingly, a boss is arranged at the position corresponding to the recess of the connecting groove, an arc-shaped concave surface matched with the arc-shaped convex surface is arranged on the top of the boss, second limiting surfaces are arranged on both sides of the arc-shaped concave surface, and the second limiting surfaces extend downward in an inclined manner; the inclination angles of the first limiting surfaces and the second limiting surfaces are the same.

4. The snake bone for an endoscope according to claim 3, characterized by The bottom of the arc-shaped groove is provided with a third limiting surface extending downward in an inclined manner; correspondingly, the top of the arc-shaped part is provided with a fourth limiting surface extending upward in an inclined manner; the inclination angles of the third limiting surface and the fourth limiting surface are the same.

5. The snake bone for an endoscope according to claim 4, characterized by The arc-shaped concave surface, the arc-shaped convex surface, the connecting part and the connecting groove have the same center.

6. The snake bone for an endoscope according to claim 1, characterized by The connecting male buckle is arranged on the snake bone joint and the head connecting section or / and the tail connecting section; and the connecting female buckle is arranged on the snake bone joint and the tail connecting section or / and the head connecting section.

7. The snake for an endoscope according to claim 6, characterized by First inclined surfaces are arranged on both sides of the connecting male buckle of the snake bone joint and the head connecting section or / and the tail connecting section; second inclined surfaces are arranged on both sides of the connecting female buckle of the snake bone joint and the tail connecting section or / and the head connecting section; and the inclination directions of the first inclined surfaces and the second inclined surfaces are opposite.

8. The snake bone for an endoscope according to claim 4, characterized by Except for the included angles of the first limiting surfaces and the groove bottom of the arc-shaped groove, the included angles of the second limiting surfaces and the groove bottom of the connecting groove, and the included angles of the third limiting surfaces and the arc-shaped convex surface, the remaining edges and corners of the connecting male buckle and the connecting female buckle are rounded.

9. The snake bone for an endoscope according to claim 1, characterized by, Positioning grooves are arranged on the head connecting section and the tail connecting section.

10. The snake bone for an endoscope according to claim 1, characterized by, Thread grooves are arranged on the head connecting section, the snake bone joint and the tail connecting section.

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