A linking device for a snake bone

Abstract

This invention provides a connecting device for snake bones, relating to the field of medical device technology. The connecting device for snake bones includes: a snake bone segment, comprising an upper segment and a lower segment, connected by a rubber sleeve. Four cylindrical connecting rods arranged in a circular array are fixed to the bottom of the lower segment. Four elongated grooves arranged in a circular array are formed at the top of the upper segment, each groove containing a circular groove in its center. This connecting device for snake bones forms a complete elongated snake bone by splicing multiple snake bone segments. Each independent snake bone segment is movably engaged with the circular groove of another independent snake bone segment via its bottom cylindrical connecting rod. The use of four cylindrical connecting rods allows for bending in multiple directions, solving the problem of limited bending angles in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to a linking device for snake bones. Background Technology

[0002] With the mature application of laser processing, the original riveted snake-bone joints have been gradually phased out due to their high processing costs. One-piece snake-bone joints made using laser cutting have emerged on the market. Laser-cut snake-bone joints have become a new alternative to riveted snake-bone joints due to their low processing cost, ease of processing, and ease of prototyping.

[0003] The invention patent with announcement number CN113317748A discloses a snake bone linking structure. The snake bone linking structure is integrally formed by laser cutting a metal round tube. The linking structure includes a patterned rotating structure, which includes a primary rotating component and a secondary rotating component adapted to the primary rotating component. The primary rotating component includes a primary arc-shaped slider and a secondary arc-shaped slide rail. The secondary rotating component includes a primary arc-shaped slide rail and a secondary arc-shaped slider. The primary arc-shaped slider is adapted to the primary arc-shaped slide rail, and the secondary arc-shaped slider is adapted to the secondary arc-shaped slide rail. The primary arc-shaped slider, the secondary arc-shaped slide rail, the primary arc-shaped slide rail, and the secondary arc-shaped slider are concentric arcs.

[0004] The aforementioned prior art has a single bending direction, which limits its applicability. Furthermore, the bending angle is limited, thus restricting the bending angle of the assembled snake-bone structure and limiting its use. Summary of the Invention

[0005] This invention provides a connecting device for snake bones, which solves the defects of the prior art, such as the single bending direction, which leads to a limited range of applications, and the limited bending angle, which also limits the bending angle of the assembled snake bone structure, resulting in certain limitations in its use.

[0006] On one hand, the present invention provides a linking device for snake bones, comprising:

[0007] The snake-bone joint comprises an upper segment and a lower segment, connected by a rubber sleeve. Four cylindrical connecting rods arranged in a circular array are fixed to the bottom of the lower segment. Four elongated grooves arranged in a circular array are formed at the top of the upper segment, each groove containing a circular groove in its center. Multiple snake-bone joints are spliced ​​together to form a complete elongated snake-bone structure. Each independent snake-bone joint is movably engaged with the circular groove of another independent snake-bone joint via its bottom cylindrical connecting rod. The use of four cylindrical connecting rods allows for bending in multiple directions, solving the problem of limited bending angles in existing technologies.

[0008] On the other hand, both the upper and lower vertebrae are integrally cast from deformable materials, and the top of the upper vertebrae and the bottom of the lower vertebrae each have four arc-shaped structures.

[0009] On the other hand, the four arc-shaped structures at the top of the upper segment are all provided with arc-shaped grooves.

[0010] On the other hand, the specifications of the circular groove are adapted to the cylindrical connecting rod, while the specifications of the elongated groove are smaller than those of the cylindrical connecting rod.

[0011] On the other hand, the snake joint is equipped with an adjustment device for adjusting the hardness of the snake joint.

[0012] On the other hand, the adjustment device includes a lower support and an upper support, which are connected by multiple hollow rubber tubes. A disc is rotatably connected to the bottom of the lower support, and multiple arc-shaped toothed rods are fixed to the outer side of the disc. Multiple gears are rotatably connected to the bottom of the lower support, and each gear has a threaded post threaded inside. The upper part of the threaded post is located inside the hollow rubber tube. By assembling the adjustment device inside the snake joint, the rotation of the disc controls the up-and-down movement of the threaded post, thereby controlling the hardness of the hollow rubber tube and thus the overall hardness of the snake joint, making the assembled snake joint suitable for more usage conditions.

[0013] On the other hand, the gear meshes with the arc-shaped cleaver.

[0014] On the other hand, the top of the upper bracket has multiple rectangular slots, each of which is equipped with a support assembly. Each support assembly includes an elastic telescopic rod fixed within the rectangular slot, with a spherical sleeve fixed to the front end of the elastic telescopic rod. A rubber ball is rolled inside the spherical sleeve. By assembling the support assembly within the upper bracket, the rubber tube connecting the probe can be supported. The contact between the rubber ball in the support assembly and the rubber tube reduces frictional wear on the rubber tube during bending.

[0015] The present invention provides a linking device for snake bones, which has the following advantages:

[0016] (1) The connecting device for snake bones is formed by splicing multiple snake bone segments to form a complete long strip snake bone. Each independent snake bone segment is movably engaged with the circular groove of another independent snake bone segment through the cylindrical connecting rod at its bottom. The connection method of four cylindrical connecting rods allows it to bend in multiple directions, solving the problem of the single bending angle in the prior art.

[0017] (2) The connecting device for snake bone, by assembling an adjustment device inside the snake bone joint, controls the up and down movement of the threaded column by rotating the disc, thereby controlling the softness and hardness of the hollow rubber tube, and thus controlling the overall softness and hardness of the snake bone joint, so that the spliced ​​snake bone can be used in more application states.

[0018] (3) The connecting device for snake bones can support the rubber tube connecting the probe by assembling a support component in the upper bracket. The rubber ball in the support component contacts the rubber tube, which can reduce the frictional loss of the rubber tube during bending. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the assembled appearance structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the assembled appearance structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the overall structure of the snake joint of the present invention;

[0023] Figure 4 This is the present invention. Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the adjusting device of the present invention;

[0025] Figure 6 This is a cross-sectional view of the adjusting device of the present invention;

[0026] Figure 7 This is a partial structural schematic diagram of the adjusting device of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the support component of the present invention.

[0028] Figure label:

[0029] 100. Snake-like joint; 101. Upper joint; 102. Lower joint; 103. Rubber sleeve; 104. Cylindrical connecting rod; 105. Long groove; 106. Circular groove; 107. Arc-shaped groove;

[0030] 200. Adjustment device; 201. Lower support; 202. Upper support; 203. Hollow rubber tube; 204. Disc; 205. Arc-shaped toothed rod; 206. Gear; 207. Threaded column; 208. Rectangular groove;

[0031] 300. Support component; 301. Elastic telescopic rod; 302. Spherical sleeve; 303. Rubber ball. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0033] Example 1, see Figures 1-4 This embodiment provides a linking device for snake bones, comprising:

[0034] Snake joint 100 includes upper joint 101 and lower joint 102. Upper joint 101 and lower joint 102 are connected by rubber sleeve 103. The bottom of lower joint 102 is fixed with four cylindrical connecting rods 104 arranged in a circular array. The top of upper joint 101 is provided with four long grooves 105 arranged in a circular array. Each long groove 105 is provided with a circular groove 106 in the middle.

[0035] Both the upper segment 101 and the lower segment 102 are integrally cast from deformable material. The top of the upper segment 101 and the bottom of the lower segment 102 each have four arc-shaped structures. The interior of each of the four arc-shaped structures at the top of the upper segment 101 has an arc-shaped groove 107. The size of the circular groove 106 is compatible with the cylindrical connecting rod 104, while the size of the elongated groove 105 is smaller than that of the cylindrical connecting rod 104. Multiple snake-bone segments 100 are spliced ​​together to form a complete elongated snake-bone structure. Each independent snake-bone segment 100 is movably engaged with the circular groove 106 of another independent snake-bone segment 100 via a cylindrical connecting rod 104 at its bottom. This connection method using four cylindrical connecting rods 104 allows for bending in multiple directions, solving the problem of limited bending angles in existing technologies.

[0036] In practical use, the above-mentioned device is first taken out as follows: First, two independent snake-bone sections 100 are removed. The four cylindrical connecting rods 104 at the bottom of the lower section 102 of one snake-bone section 100 are then inserted into the circular groove 106 in the upper section 101 of the other snake-bone section 100. This completes the installation of any two snake-bone sections 100. Depending on the length requirements of the application scenario, multiple snake-bone sections 100 of any length are spliced ​​together following the above steps. After splicing, the device is used. Because this application uses four cylindrical connecting rods 104 for connection, therefore… The device can be bent in both directions using any two symmetrical cylindrical connecting rods 104 as fulcrums. Therefore, this application has four bending directions. When any two symmetrical cylindrical connecting rods 104 are used as fulcrums for bending, the other two cylindrical connecting rods 104 will temporarily disengage from the circular groove 106 and need to be reset after use. At the same time, in order to ensure that the upper segment 101 does not have a hard impact with the lower segment 102 during bending, an arc-shaped groove 107 is provided on the upper segment 101 to give the lower segment 102 sufficient space for movement.

[0037] Example 2, see Figure 3 , Figures 5-7 Based on Embodiment 1, this embodiment includes an adjustment device 200 for adjusting the hardness of the snake joint 100, which is installed inside the snake joint 100. The adjustment device 200 includes a lower support 201 and an upper support 202. The lower support 201 and the upper support 202 are connected by multiple hollow rubber tubes 203. A disc 204 is rotatably connected to the bottom of the lower support 201. Multiple arc-shaped toothed rods 205 are fixed to the outside of the disc 204. Multiple gears 206 are rotatably connected to the bottom of the lower support 201. Each gear 206 has a threaded post 207 threaded inside. The upper half of the threaded post 207 is located inside the hollow rubber tube 203. The gear 206 meshes with the arc-shaped toothed rod 205. By assembling an adjustment device 200 inside the snake joint 100, the threaded column 207 can be moved up and down by rotating the disc 204, thereby controlling the hardness of the hollow rubber tube 203, and thus controlling the overall hardness of the snake joint 100, so that the spliced ​​snake joint can be used in more applications.

[0038] In practical use, the above-mentioned device has excellent bending performance because the upper joint 101 and the lower joint 102 are connected by a rubber sleeve 103. Furthermore, the overall flexibility can be adjusted by using an adjusting device 200 for auxiliary connection. Figure 5In the initial state, the threaded post 207 is not inside the hollow rubber tube 203, so the overall hardness is relatively soft. However, the hardness needs to be adjusted for different usage scenarios. By rotating the disc 204, the four arc-shaped toothed rods 205 fixed on its outer side rotate, thereby simultaneously driving the four gears 206 to rotate. At this time, the threaded post 207 connected by the threads inside the four gears 206 will move upward under the action of the gears 206, thus entering the hollow rubber tube 203. At this time, under the action of the threaded post 207 and the hollow rubber tube 203, the upper support 202 and the lower support 201 form a complete rigid structure. This is equivalent to supporting the upper joint 101 and the lower joint 102, increasing the hardness of the entire independent snake joint 100. The hardness can be adjusted according to different usage scenarios, making it more suitable for the complex usage conditions of the medical environment.

[0039] Example 3, see Figure 3 , Figure 5 , Figure 8 Based on Embodiment 1, this embodiment features multiple rectangular slots 208 at the top of the upper support 202. Each rectangular slot 208 houses a support assembly 300. The support assembly 300 includes an elastic telescopic rod 301 fixed within the rectangular slot 208. A spherical sleeve 302 is fixed to the front end of the elastic telescopic rod 301, and a rubber ball 303 is rolled inside the spherical sleeve 302. By assembling the support assembly 300 within the upper support 202, it can support the rubber tube connecting the probe. The contact between the rubber ball 303 in the support assembly 300 and the rubber tube reduces frictional wear on the rubber tube during bending.

[0040] In actual use, the probe connected to the rubber tube will pass through the upper support 202 and lower support 201 inside the adjustment device 200. To prevent hard friction between the rubber tube and the upper support 202 during bending, a rubber ball 303 contacts and supports the rubber tube. Since the rubber ball 303 and the spherical sleeve 302 are connected by a rolling connection, the friction wear with the rubber tube can be minimized. At the same time, the spherical sleeve 302 is connected to the rectangular groove 208 of the upper support 202 through the elastic telescopic rod 301, so it has a certain amount of movement space, which allows the rubber ball 303 to better fit the rubber tube, thereby reducing the friction wear on the rubber tube.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A connecting device for snake bones, characterized in that, include: Snake-bone joint (100), the snake-bone joint (100) includes an upper joint (101) and a lower joint (102), the upper joint (101) and the lower joint (102) are connected by a rubber sleeve (103), the bottom of the lower joint (102) is fixed with four cylindrical connecting rods (104) arranged in a circular array, the top of the upper joint (101) is provided with four long grooves (105) arranged in a circular array, and each long groove (105) is provided with a circular groove (106) in the middle. The specifications of the circular groove (106) are adapted to the cylindrical connecting rod (104); The cylindrical connecting rod (104) is movably engaged with the circular groove (106) of another independent snake joint (100).

2. The connecting device for snake bones according to claim 1, characterized in that, The upper segment (101) and the lower segment (102) are both integrally cast from deformable material. The top of the upper segment (101) and the bottom of the lower segment (102) are both four arc-shaped structures.

3. A connecting device for snake bones according to claim 2, characterized in that, The four arc-shaped structures at the top of the upper segment (101) are all provided with arc-shaped grooves (107).

4. A connecting device for snake bones according to claim 1, characterized in that, The snake joint (100) is internally equipped with an adjustment device (200) for adjusting the hardness of the snake joint (100).

5. A connecting device for snake bones according to claim 4, characterized in that, The adjustment device (200) includes a lower support (201) and an upper support (202). The lower support (201) and the upper support (202) are connected by multiple hollow rubber tubes (203). A disc (204) is rotatably connected to the bottom of the lower support (201). Multiple arc-shaped toothed rods (205) are fixed to the outside of the disc (204). Multiple gears (206) are rotatably connected to the bottom of the lower support (201). Each gear (206) is threaded with a threaded post (207) inside. The upper part of the threaded post (207) is located inside the hollow rubber tube (203).

6. A linking device for snake bones according to claim 5, characterized in that, The gear (206) meshes with the arc-shaped toothed rod (205).

7. A connecting device for snake bones according to claim 5, characterized in that, The top of the upper bracket (202) is provided with a plurality of rectangular slots (208), and each rectangular slot (208) is equipped with a support assembly (300). The support assembly (300) includes an elastic telescopic rod (301) fixed in the rectangular slot (208). A spherical sleeve (302) is fixed to the front end of the elastic telescopic rod (301), and a rubber ball (303) is rolled inside the spherical sleeve (302).

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