Integrated snake bone pipe

Abstract

The utility model discloses an integrated snake bone pipe which comprises a snake bone body, the snake bone body is of a hollow tubular structure, and the outer wall of the snake bone body is provided with a plurality of sets of elastic interlocking abutting structures which spirally extend in the length direction and are evenly distributed. Each elastic interlocking abutting structure comprises an S-shaped through groove formed in the snake bone body and a pair of clamping protrusions which are adjacently arranged in a staggered mode, a bending gap is formed between the clamping protrusions which are adjacently arranged in the staggered mode, and the S-shaped through groove forms two connected arc-shaped grooves which are oppositely arranged in a staggered mode in the outer wall of the snake bone body. The outline of the arc-shaped groove is matched with the shape of the corresponding clamping bulge; when the snake bone body is bent, the corresponding adjacent clamping protrusions abut against each other and form a limiting structure, and the limiting structure is suitable for limiting the bending angle of the snake bone body. According to the utility model, the production cost can be reduced while the flexibility is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a one -piece snake bone pipe belongs to medical instrument technical field. BACKGROUND

[0002] At present, with the progress of science and technology and the increase of application demand, snake bone has been widely applied in multiple fields. Snake bone can provide effective support while maintaining good flexibility.

[0003] After searching the prior art, it is found that the Chinese patent with the publication number CN201469245U discloses an endoscope snake bone. The patent connects the operating line through the connecting hole and the snake bone head end joint, the snake bone root end joint and the snake bone middle end connecting joint. It is found that there are many parts in the use process, the machining and production difficulty is large, and then the machining and assembly efficiency of the snake bone is affected. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a one -piece snake bone pipe which can ensure flexibility while reducing production cost.

[0005] In order to solve the above technical problem, the technical scheme of the utility model is as follows: a one -piece snake bone pipe comprises:

[0006] The snake bone body is in a hollow tubular structure, a plurality of elastic interlocking abutting structures extending along the length direction and uniformly distributed are arranged on the outer wall of the snake bone body, each group of the elastic interlocking abutting structures comprises an S-shaped through groove and a pair of adjacent staggered clamping protrusions arranged on the snake bone body, a bending gap is arranged between the pair of adjacent staggered clamping protrusions, the S-shaped through groove forms two connected arc grooves arranged in opposite directions on the outer wall of the snake bone body, and the contour of the arc groove is matched with the shape of the corresponding clamping protrusion.

[0007] When the snake bone body is bent, the corresponding adjacent clamping protrusions abut against each other and form a limiting structure, and the limiting structure is suitable for limiting the bending angle of the snake bone body.

[0008] Further, a specific structure of the clamping protrusion is provided, the clamping protrusion comprises a connecting section and a circular arc end portion, one end of the connecting section is connected with the outer wall of the snake bone body, and the other end is connected with the circular arc end portion.

[0009] Further, in order to enable the adjacent clamping protrusions to abut against each other when bending in the axial direction, an included angle is arranged between the projection of the length direction extension line of the clamping protrusion in the axial direction and the axis of the snake bone body.

[0010] Further, the outer surface of the clamping protrusion is arc-shaped, and the outer surface of the clamping protrusion and the outer surface of the snake bone body are smoothly connected.

[0011] Further, four clamping protrusions are evenly distributed on the outer wall of the snake bone body along each spiral circle.

[0012] Further, a wire guide groove extending along the axial direction of the snake bone body is arranged on the surface of the clamping protrusion facing the center of the snake bone body.

[0013] Further, at least four wire guide grooves are arranged on each spiral circle of the snake bone body.

[0014] Further, the snake bone body is made of metal.

[0015] The above technical scheme has the following beneficial effects:

[0016] In the utility model, the snake bone body is provided with multiple through grooves spirally arranged along the length direction, so that the snake bone body has the performance of being bendable under stress. The through grooves are arranged in S shape and form a pair of staggered clamping protrusions. The elastic interlocking abutting structure is formed by the clamping protrusions and the S-shaped through grooves. When the snake bone body is bent during use, the adjacent clamping protrusions arranged on the outer wall of the snake bone body form a limiting structure through abutting, so that the over-bending is effectively prevented, and the snake bone body cannot return to the initial state after being bent under stress, so that the stability and shape of the snake bone body during use are maintained. In addition, the clamping protrusions on the inner side of the snake bone body are provided with wire guide grooves for accommodating and guiding the wire, so that the smooth passing of the wire is ensured. The snake bone body made of metal has good strength and toughness, and the overall performance is improved.

[0017] In summary, the utility model can be moderately bent under stress while maintaining flexibility, has the ability to rebound, can effectively limit the bending angle when the bending angle is too large, and reduces the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a three-dimensional structure diagram of a one-piece snake bone pipe Figure 1 ;

[0019] Figure 2 The utility model discloses a three-dimensional structure diagram of a one-piece snake bone pipe Figure 2 ;

[0020] Figure 3 It is a front view of the one-piece snake bone pipe. DETAILED DESCRIPTION

[0021] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further explained in detail.

[0022] As Figures 1-3 Illustrated, a one-piece snake bone pipe, comprising:

[0023] Snake bone body 1, snake bone body 1 is hollow tubular structure, snake bone body 1 is provided with multiple groups of elastic interlocking abutment structure along the length direction spiral extension and uniform distribution, each group of elastic interlocking abutment structure includes the S-shaped through groove provided on snake bone body 1 and a pair of adjacent staggered setting card convex 2, a pair of adjacent staggered setting card convex 2 are provided with bending gap, the S-shaped through groove forms two connected arc grooves that are oppositely staggered on the outer wall of snake bone body 1, and the contour of the arc groove is matched with the shape of the corresponding card convex 2;

[0024] When snake bone body 1 is bent, the corresponding adjacent card convex 2 abut each other and form a limiting structure, and the limiting structure is suitable for limiting the bending angle of snake bone body 1.

[0025] In the embodiment, as Figures 1-2 Illustrated, a plurality of through grooves are spirally opened on snake bone body 1 along the length direction to make it have the performance of bending under stress, and the through groove is arranged in S shape and forms a pair of staggered card convex 2, and the elastic interlocking abutment structure is formed by the card convex 2 and the S-shaped through groove, so that in the use process, when snake bone body 1 is bent, the adjacent card convex 2 arranged on the outer wall of snake bone body 1 forms a limiting structure by abutting, effectively prevents overbending, avoids the inability to rebound to the initial state after bending under stress, thereby maintaining the stability and shape of snake bone body 1 in use.

[0026] Specifically, as Figures 1-2 Illustrated, the card convex 2 includes a connecting section and a circular arc end portion, one end of the connecting section is connected with the outer wall of the snake bone body 1, and the other end is connected with the circular arc end portion.

[0027] In the embodiment, by adjusting the groove width and the radius of curvature of the S-shaped through groove, different degrees of bending effect and card convex 2 shape can be realized.

[0028] Specifically, as Figures 1-2 Illustrated, the projection of the length direction extension line of the card convex 2 in the axial direction is provided with an included angle between the axis of the snake bone body 1.

[0029] In the embodiment, as Figures 1-2 Illustrated, the adjacent card convex 2 is provided with a suitable preset angle, which can facilitate the staggered abutment of the adjacent card convex 2 when the snake bone body 1 is bent and deformed, and the preset angle can be between 30 to 80 degrees.

[0030] Specifically, asFigures 1-2 As shown, the outer surface of the clamping protrusion 2 is in an arc structure, and the outer surface of the clamping protrusion 2 and the outer surface of the serpentine body 1 are smoothly transitioned.

[0031] Specifically, as shown in the figure, Figures 1-2 As shown, four clamping protrusions 2 are distributed on the outer wall of the serpentine body 1 along each spiral turn.

[0032] In this embodiment, as shown in the figure, Figures 1-2 As shown, the outer wall of the serpentine body 1 is provided with an elastic interlocking abutting structure extending in the length direction. Each spiral turn refers to a structural unit formed by rotating the elastic interlocking abutting structure on the serpentine body 1 by 360 degrees along the central axis. Each spiral turn not only includes an angular displacement of one revolution around the serpentine body 1, but also includes an axial displacement distance. In this embodiment, four clamping protrusions 2 are uniformly arranged on each complete spiral turn, and the circumferential angle between adjacent clamping protrusions 2 is 90 degrees.

[0033] Specifically, as shown in the figure, Figures 1-3 As shown, the surface of the clamping protrusion 2 facing the center of the serpentine body 1 is provided with a wire guide groove 3 extending in the axial direction of the serpentine body 1, and the wire guide groove 3 is suitable for accommodating and guiding the wire.

[0034] Specifically, as shown in the figure, Figures 1-3 As shown, four wire guide grooves 3 are arranged on each spiral turn of the serpentine body 1.

[0035] In this embodiment, as shown in the figure, Figures 1-3 As shown, the four clamping protrusions 2 arranged on each spiral turn of the outer wall of the serpentine body 1 form a symmetrical structural layout. This uniform distribution design not only ensures that the serpentine tube has the same bending performance in any direction, but also provides stable support effect. The wire guide groove 3 arranged inside each clamping protrusion 2 extends in the axial direction of the serpentine body 1, providing a special accommodation space for the arrangement of the wire.

[0036] Specifically, as shown in the figure, Figures 1-2 As shown, the serpentine body 1 is made of metal material.

[0037] In this embodiment, as shown in the figure, Figures 1-3 As shown, the serpentine body 1 is made of metal material. The metal material not only has excellent mechanical properties and fatigue resistance, but also has good biocompatibility, which can meet the performance requirements in the medical operation process. The serpentine body 1 made of metal material can be precisely cut by numerical control machine tool during processing and manufacturing, ensuring the machining precision of the clamping protrusion 2 and the wire guide groove 3. At the same time, the metal material is also convenient for sterilization and disinfection treatment of the product, which meets the hygiene requirements of medical devices. The serpentine body 1 can be made of medical grade stainless steel, titanium alloy and other special metal materials.

[0038] The above-described specific embodiments further specifically describe the technical problems, technical solutions and beneficial effects solved by the present application, and it should be understood that the above-described specific embodiments are merely specific embodiments of the present application and are not used to limit the present application, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated serpentine tube, characterized by, The utility model relates to a kind of integrated serpentine pipe, including: Serpentine body (1), the serpentine body (1) is hollow tubular structure, the outer wall of the serpentine body (1) is equipped with multiple groups of length direction helical extension and evenly distributed elastic interlocking abutment structure, each group of the elastic interlocking abutment structure includes S-shaped through slot and a pair of adjacent staggered setting card convex (2) arranged on the serpentine body (1), a pair of adjacent staggered setting the card convex (2) between the bending gap is equipped with, the S-shaped through slot forms two connected arc grooves of opposite staggered setting on the outer wall of the serpentine body (1), the profile of the arc groove is matched with the shape of corresponding card convex (2). When the serpentine body (1) is bent, corresponding adjacent card convex (2) abut each other and form limiting structure, the limiting structure is suitable for limiting the bending angle of the serpentine body (1).

2. The integrated serpentine pipe according to claim 1, wherein The card convex (2) includes connecting section and circular arc end, wherein one end of the connecting section is connected with the outer wall of the serpentine body (1), and the other end is connected with the circular arc end.

3. The integrated serpentine pipe according to claim 1, wherein The length direction extension line of the card convex (2) is provided with an included angle between the projection in the axial direction and the axis of the serpentine body (1).

4. The integrated serpentine pipe according to claim 1, wherein The outer surface of the card convex (2) is arc-shaped structure, and the outer surface of the card convex (2) and the outer surface of the serpentine body (1) are smoothly transitioned.

5. The integrated serpentine pipe according to claim 1, wherein Four card convexes (2) are evenly distributed on the outer wall of the serpentine body (1) along each helical circle.

6. The integrated serpentine pipe according to claim 1, wherein The surface of the card convex (2) facing the center of the serpentine body (1) is provided with a wire guide groove (3) extending in the axial direction of the serpentine body (1).

7. The integrated serpentine pipe according to claim 6, wherein At least four wire guide grooves (3) are provided on each helical circle of the serpentine body (1).

8. The integrated serpentine pipe according to claim 1, wherein The serpentine body (1) is made of metal.

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