CN114847844A - Snake bone assembly and endoscope - Google Patents

Abstract

The invention relates to an endoscope and discloses a snake bone component and an endoscope, which comprise a snake bone component body, wherein the snake bone component body comprises a plurality of snake bone component units (1) which are sequentially connected and have different bending strengths, and each snake bone component unit (1) comprises one or more snake bone unit sections (2) which are sequentially connected. The snake bone formed by the snake bone components with different bending strengths can achieve the effect that the bone sections of the snake bone are bent firstly and other parts are bent later according to actual clinical requirements, and has better flexibility.

Description

Snake bone assembly and endoscope

Technical Field

The invention relates to an endoscope, in particular to a snake bone component.

Background

Endoscopes are common tools in today's society, are mainly used in medical treatment and industry, and are often used for medical examination, minimally invasive surgery, equipment maintenance and the like.

When the head of the existing endoscope is bent and turned at a bending angle, the bending of the head of the endoscope is realized by drawing a steel wire rope which is arranged in a snake bone and connected with the snake bone.

When the existing snake bone is used, after a user pulls the control steel wire, the snake bone cannot deflect sequentially according to the will of an operator. For example, when the operator needs to bend the snake bone head first, the operator often bends the snake bone head first, which increases the difficulty of the operator.

Disclosure of Invention

The invention provides a snake bone component and an endoscope, aiming at the problems of operation and control of snake bones in the prior art.

In order to solve the technical problem, the invention is solved by the following technical scheme:

a snake bone component comprises a snake bone component body, wherein the snake bone component body comprises a plurality of snake bone component units which are connected in sequence and have different bending strengths, and each snake bone component unit comprises one or more snake bone unit sections connected in sequence.

Assemble the snake bone through connecting the snake bone subassembly that bending strength is different for operating personnel can select to set up different difficult and easy bending sections in required position department according to actual need and reach the bending that has the order according to actual required control snake bone, in order to realize controlling the snake bone more nimble.

Preferably, the snake bone component unit comprises a clamping snake bone component, a riveting snake bone component and a semi-rigid snake bone component.

Preferably, the clamping snake bone assembly comprises a plurality of clamping snake bone unit sections which are sequentially connected and are cylindrical, adjacent clamping snake bone unit sections are rotatably connected, circular lock catch grooves or circular lock catches matched with the adjacent clamping snake bone unit sections are formed in the end portions of the clamping snake bone unit sections, and the adjacent clamping snake bone unit sections are rotatably connected through the circular lock catch grooves and the circular lock catches.

The rotary shaft that circular hasp groove and circular hasp constitute is mutually perpendicular with the center pin of joint snake bone subassembly, can realize the rotation between the adjacent joint snake bone unit festival through the cooperation between circular hasp groove and the circular hasp and connect, and the rotation process is the joint snake bone subassembly process of bending promptly to realize the bending of whole snake bone.

Preferably, the end face of each clamping snake bone unit section is also provided with a convex block or a groove matched with the adjacent clamping snake bone unit section, and the adjacent clamping snake bone unit sections are matched and limited through the convex blocks and the grooves. The clamping between the convex block and the groove can prevent the adjacent clamping snake bone unit sections from generating radial displacement, and the stability of the rotation process between the adjacent clamping snake bone unit sections is effectively ensured.

Preferably, the riveting snake bone component comprises a plurality of cylindrical riveting snake bone unit sections which are connected in sequence, adjacent riveting snake bone unit sections are connected in a rotating mode, and the end portions of the riveting snake bone unit sections are provided with circular connecting pieces which are connected with the adjacent riveting snake bone unit sections in a rotating mode through rivets.

The round connecting pieces between the adjacent riveting snake bone unit sections are connected through rivets to realize rotation between the adjacent riveting snake bone unit sections, and the mutual rotation process is the bending process of the riveting snake bone assembly to realize bending of the whole snake bone.

Preferably, the circular connecting pieces comprise first circular connecting pieces and second circular connecting pieces which are respectively arranged at two ends of the riveting snake bone unit sections, first circular concave shoulders for inserting the second circular connecting pieces on the adjacent riveting snake bone unit sections are formed between the first circular connecting pieces and the end faces of the riveting snake bone unit sections, and second circular concave shoulders for inserting the first circular connecting pieces on the adjacent riveting snake bone unit sections are formed between the second circular connecting pieces and the end faces of the riveting snake bone unit sections. First circular concave shoulder and the circular concave shoulder of second can make adjacent riveting snake bone unit festival cooperation when connecting overall structure compacter, reduce the interference that circular connection piece and rivet produced the space beyond the lateral surface of riveting snake bone subassembly, can play the limiting displacement when connecting current first circular connection piece and the circular connection piece of second simultaneously, guarantee smooth, the steady operation of snake bone.

Preferably, the semi-rigid snake bone component comprises a semi-rigid snake bone unit section, the semi-rigid snake bone unit section is in a cylindrical shape, a first arc-shaped long hole and a second arc-shaped long hole which are oppositely arranged are formed in the side wall of the semi-rigid snake bone unit section, and a connecting rib capable of being elastically deformed is formed between the end portion of the first arc-shaped long hole and the end portion of the second arc-shaped long hole in the side wall of the semi-rigid snake bone unit section.

First arc rectangular hole and second arc rectangular hole constitute the clearance that deflects, and the splice bar constitutes semi-rigid connecting axle, and a plurality of semi-rigid snake bone unit sections constitute semi-rigid snake bone subassembly, and semi-rigid snake bone subassembly can cut the different crooked degree of difficulty that realize semi-rigid snake bone subassembly according to actual need to obtain the splice bar of different thickness for operating personnel can select the semi-rigid snake bone subassembly of different crooked degrees of difficulty to splice according to the needs sequentially crooked snake bone.

Preferably, the first arc-shaped elongated hole and the second arc-shaped elongated hole are arranged in a staggered or opposite mode in the axial direction of the semi-rigid snake bone unit joint.

Preferably, the side wall of the snake bone unit section is integrally formed with a connecting sheet bent towards the center of the snake bone component body, and the bent part of the connecting sheet forms a steel wire channel for a steel wire to pass through. The steel wire channel is simple to process and convenient to assemble due to the forming mode of the steel wire channel.

An endoscope comprising a snake bone, the snake bone comprising a snake bone assembly as described above.

Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:

the snake bone formed by the snake bone components with different bending strengths can achieve the effect that the bone sections of the snake bone are bent firstly and other parts are bent later according to actual clinical requirements, and has better flexibility.

Drawings

FIG. 1 is a schematic view showing the connection structure of the clamping snake bone component and the semi-rigid snake bone component of the invention.

Fig. 2 is a schematic view showing a first usage state of fig. 1.

Fig. 3 is a schematic diagram of the second usage state of fig. 1.

FIG. 4 is a schematic view of the connection structure between the riveted snake bone component and the semi-rigid snake bone component of the invention.

Fig. 5 is a first schematic view of the use state of fig. 4.

Fig. 6 is a schematic diagram of the second usage state of fig. 4.

Fig. 7 is a schematic view of the structure of the snap-in snake bone assembly of fig. 1.

Fig. 8 is a schematic view of the riveted snake bone assembly of fig. 4.

Fig. 9 is a schematic structural view of the semi-rigid snake bone assembly of fig. 1 or 4.

Fig. 10 is a schematic structural view of the snake bone unit joint in fig. 7.

Fig. 11 is a sectional view taken along the plane a-a in fig. 10.

Fig. 12 is a side view of fig. 10.

Fig. 13 is a schematic view of the mating of adjacent riveted snake bone unit segments of fig. 8.

Fig. 14 is a schematic structural view of the riveted snake bone unit segment of fig. 13.

Fig. 15 is a side view of fig. 14.

Fig. 16 is a side view of fig. 9.

Fig. 17 is a front view of fig. 9.

Fig. 18 is a first usage state diagram of fig. 9.

Fig. 19 is a schematic view of the second usage state of fig. 9.

Fig. 20 is a schematic structural view of the half-steel snake bone unit segment of fig. 9.

Fig. 21 is a top view of fig. 20.

Fig. 22 is a schematic view of the use state of fig. 20.

FIG. 23 is a schematic structural view of a half-steel snake bone unit section in example 2.

FIG. 24 is a first structural view of a half-steel snake bone unit section of embodiment 3.

FIG. 25 is a second schematic structural view of a half-steel snake bone unit section of example 3.

FIG. 26 is a third schematic structural view of a half-steel snake bone unit section of example 3.

FIG. 27 is a first structural view of a half-steel snake bone unit section of example 4.

FIG. 28 is a second schematic structural view of a half-steel snake bone unit section of example 4.

Fig. 29 is a third schematic structural view of a half-steel snake bone unit section of embodiment 4.

Detailed Description

The invention is described in further detail below with reference to the figures and examples.

Example 1

A snake bone component, as shown in figures 1-22, comprises a snake bone component body, wherein the snake bone component body comprises a plurality of snake bone component units 1 which are connected in sequence and have different bending strengths, and each snake bone component unit 1 comprises one or more snake bone unit sections 2 which are connected in sequence.

The snake bone component unit 1 in the embodiment comprises a clamping snake bone component 11, a riveting snake bone component 12 and a semi-rigid snake bone component 13.

Wherein, joint snake bone subassembly 11 includes a plurality of joint snake bone unit sections 21 that connect gradually and be the tube-shape, rotates between the adjacent joint snake bone unit section 21 to be connected, and the tip of joint snake bone unit section 21 is equipped with the circular hasp groove 202 or the circular hasp 203 with adjacent joint snake bone unit section 21 complex, rotates through circular hasp groove 202 and circular hasp 203 cooperation between the adjacent joint snake bone unit section 21 and connects.

The opening angle of the circular lock catch groove 202 is smaller than 90 degrees, axial displacement can be effectively limited after the adjacent clamping snake bone unit sections 21 are matched, and in addition, the clamping snake bone unit sections 21 have certain thickness, so that the rotation around the axis can be prevented from occurring between the adjacent clamping snake bone unit sections 21 when the circular lock catch 203 is matched with the circular lock catch groove 202.

The end face of each clamping snake bone unit section 21 is also provided with a convex block 204 or a groove 205 which is matched with the adjacent clamping snake bone unit section 21, and the adjacent clamping snake bone unit sections 21 are matched and limited through the convex blocks 204 and the grooves 205. When the adjacent clamping snake bone unit sections 21 are matched and connected, the convex blocks 204 are clamped in the concave grooves 205, so that radial displacement between the adjacent clamping snake bone unit sections 21 can be prevented.

After the adjacent clamping snake bone unit sections 21 are matched, due to the fact that the circular lock catch groove 202, the circular lock catch 203, the convex block 204 and the groove 205 exist, when one clamping snake bone unit section 21 is fixed, the other clamping snake bone unit section 21 can rotate around the circular lock catch 203, axial displacement does not occur, axial displacement and radial displacement do not occur, an operator can adjust the size of a rotating angle by adjusting the gap between the adjacent clamping snake bone unit sections 21, and gaps with different sizes can be designed according to needs in the machining process to meet operation requirements.

The riveting snake bone component 12 comprises a plurality of cylindrical riveting snake bone unit sections 22 which are connected in sequence, adjacent riveting snake bone unit sections 22 are connected in a rotating mode, and the end portions of the riveting snake bone unit sections 22 are provided with circular connecting pieces 301 which are connected with the adjacent riveting snake bone unit sections 22 in a rotating mode through rivets 302.

The circular connecting sheet 301 comprises a first circular connecting sheet 303 and a second circular connecting sheet 304 which are respectively arranged at two ends of the riveting snake bone unit joint 22, a first circular concave shoulder 305 for inserting the second circular connecting sheet 304 on the adjacent riveting snake bone unit joint 22 is formed between the first circular connecting sheet 303 and the end surface of the riveting snake bone unit joint 22, and a second circular concave shoulder 306 for inserting the first circular connecting sheet 303 on the adjacent riveting snake bone unit joint 22 is formed between the second circular connecting sheet 304 and the end surface of the riveting snake bone unit joint 22.

Realize the connection between first circular connection piece 303 and the circular connection piece 304 through rivet 302, can prevent effectively that 2 riveting snake bone unit sections 22 are except taking place relative round rivet 302 axle rotation, other displacements can not take place, and set up on the riveting snake bone unit section 22 and supply the circular concave shoulder 306 of the first circular connection piece 303 of the first circular concave shoulder 305 of second circular connection piece 304 male and supply, overall structure is compacter when can making adjacent riveting snake bone unit section 22 cooperation connect, reduce the interference that circular connection piece 301 and rivet 302 produced to the space beyond the lateral surface of riveting snake bone subassembly 12, guarantee the smoothness of snake bone, the steady operation, can play the limiting displacement when connecting first circular connection piece 303 and second circular connection piece 304 simultaneously, guarantee both connection stability.

In this embodiment, the semi-rigid snake bone assembly 13 includes a semi-rigid snake bone unit section 23, the semi-rigid snake bone unit section 23 is in a cylindrical shape, a first arc-shaped long hole 101 and a second arc-shaped long hole 102 which are oppositely arranged are formed on a side wall of the semi-rigid snake bone unit section 23, and a connecting rib 103 which can be elastically deformed is formed on the side wall of the semi-rigid snake bone unit section 23 and between an end portion of the first arc-shaped long hole 101 and an end portion of the second arc-shaped long hole 102.

The first arc-shaped long-strip hole 101 and the second arc-shaped long-strip hole 102 are arranged in a staggered manner in the axial direction of the semi-rigid snake bone unit section 23, and the first arc-shaped long-strip hole 101 and the second arc-shaped long-strip hole 102 are identical in shape and equal in width from one end to the other end.

When one side of the steel wire is pulled in use, the semi-rigid snake bone unit section 23 is relatively deflected by means of the elastic deformation of the connecting rib 103 on the semi-rigid snake bone unit section 23. Wherein, the deflection clearance determines the deflection angle, and the thickness of the connecting rib 103 determines the force for enabling the snake bone joint to generate deflection when pulling the steel wire, and the thicker the connecting rib 103, the larger the force is required.

The thickness of the connecting rib 103 can be set according to actual needs by the principle that the thickness of the connecting rib 103 is thicker and the required tension is larger during design, the thickness of the semi-rigid connecting shaft of the part needing to be bent first can be set according to actual needs by cutting the cutting widths of the first arc-shaped long hole 101 and the second arc-shaped long hole 102, and the effect that the snake bone of the part is bent first and other parts are bent later can be achieved only by enabling the thickness of the semi-rigid connecting shaft of the part needing to be bent first to be thinner than the thickness of other connecting shafts. If the operator needs to bend the snake bone head first and then bend the snake bone tail end backward, the thickness of the connecting rib 103 on the snake bone front half snake bone unit body near the head end is set to be thinner than the snake bone back half snake bone unit section 2 near the tail end.

Be equipped with the steel wire passageway 15 that supplies the steel wire to pass on the lateral wall of snake bone unit festival 2 in this embodiment, steel wire passageway 15 is two and the symmetry sets up on the lateral wall of snake bone unit festival 2, and a steel wire is worn to establish respectively by the steel wire passageway 15 that two symmetries set up. The steel wire passes steel wire passageway 15 on the snake bone unit section 2 that connects gradually one by one to after fixing steel wire and snake bone head end, fixed mode can adopt welding or bonding or other modes fixed, from another pulling steel wire, the snake bone will deflect to that side of pulling steel wire, realizes then that can effective stable control snake bone's motion through the steel wire.

The concrete structure mode of the steel wire channel 15 is that a connecting piece 14 bending towards the center of the snake bone component body is integrally formed on the side wall of the snake bone unit section 2, and the bending part of the connecting piece 14 forms the steel wire channel 15 for the steel wire to pass through.

Wherein, the connecting piece 14 of joint snake bone unit festival 21 is through seting up one on the lateral wall of joint snake bone unit festival 21 and being interrupted the hole, and the tip of joint snake bone unit festival 21 forms connecting piece 14 through being interrupted the hole interval, and connecting piece 14 is bent towards snake bone subassembly body center and is formed steel wire channel 15.

The concrete forming modes of the steel wire channel 15 on the riveting snake bone unit section 22 and the semi-rigid snake bone unit section 23 are the same, connecting sheets 16 are arranged on the side walls of the snake bone unit section 2, connecting sheets 14 bent towards the center of the snake bone unit section 2 are arranged on the inner walls of the connecting sheets 16, the steel wire channel 15 is formed at the bent positions of the connecting sheets 14, the connecting sheets 14 and the side walls of the snake bone unit section 2 are integrally formed, the connecting sheets 16 and the connecting sheets 14 are directly formed by cutting, two corresponding cutting grooves are cut on the side walls of the snake bone unit section 2, then the part between the two cutting grooves is bent towards the inside of the snake bone unit section 2 to form the connecting sheets 16, and the part between the two cutting grooves forms the connecting sheets 14.

Through the steel wire passageway 15 that above-mentioned two kinds of modes formed, processing is simple and convenient, and need not fixed unnecessary fragmentary part and constitute steel wire passageway 15, compares in the current processing that realizes steel wire passageway 15 through the mode that punches a hole simultaneously, and the steel wire passageway 15 of this kind of mode can also be wearing to establish the steel wire in-process and adjusting the size to a certain extent, and the steel wire is worn to establish to cooperation operating personnel that can be better, and follow-up assembly is more convenient.

When different snake bone component units 1 are connected, a connecting structure matched with an adjacent snake bone component is arranged at the end part of the corresponding snake bone component unit 1, for example, when the clamping snake bone component 11 is connected with the semi-rigid snake bone component 13, a circular lock catch groove 202 or a circular lock catch 203 and a convex block 204 or a concave groove 205 matched with the end part of the snake bone unit section 2 are arranged at the end part of the snake bone unit section 2 connected with the clamping snake bone component 11 in the semi-rigid snake bone component 13, on one hand, the clamping snake bone component 11 and the semi-rigid snake bone component 13 are connected through the matching of the circular lock catch groove 202 and the circular lock catch 203 as well as the convex block 204 and the concave groove 205, on the other hand, a steel wire passes through a steel wire channel 15 on the clamping snake bone component 11 and the semi-rigid snake bone component 13 to realize the connection of the clamping snake bone component 11 and the semi-rigid snake bone component 13 and the operation and control of the steel wire.

Similarly, the connection position of the semi-rigid snake bone component 13 and the riveting snake bone component 12 is also designed in such a way that when the semi-rigid snake bone component 13 connected with the riveting snake bone component 21 is connected, a circular connecting piece 301 matched with the end part of the riveting snake bone component 21 is arranged at the end part of the semi-rigid snake bone unit section 23 connected with the riveting snake bone component 21 in the semi-rigid snake bone component 13, and the riveting snake bone component 21 and the semi-rigid snake bone component 13 are connected through a rivet to realize the connection of the circular connecting pieces 301.

Example 2

The difference from embodiment 1 is that the first arc-shaped elongated hole 101 and the second arc-shaped elongated hole 102 are arranged to face each other in the axial direction of the semi-rigid serpentine unit segment 23 in this embodiment, as shown in fig. 23.

Example 3

The embodiment 1 is the same as the embodiment 1 except that the first arc-shaped elongated hole 101 and the second arc-shaped elongated hole 102 have the same shape and gradually decrease in width from the middle to both ends, as shown in fig. 24 to 26.

Example 4

The embodiment 2 is the same as the embodiment 2 except that the first arc-shaped elongated hole 101 and the second arc-shaped elongated hole 102 have the same shape and gradually decrease in width from the middle to both ends, as shown in fig. 27 to 29.

Example 5

An endoscope comprising a snake bone, the snake bone comprising a snake bone assembly of any of the embodiments 1-4.

As shown in fig. 1-19, when the relative rotation occurs between the adjacent clamping snake bone unit segments 21 in the clamping snake bone assembly 11, only the friction force between the circular lock catch 203 and the circular lock catch groove 202 is generated, and the friction force is very small; when the adjacent riveting snake bone unit sections 22 in the riveting snake bone component 12 rotate relatively, the friction force between the first circular connecting sheet 303 and the second circular connecting sheet 304 needs to be overcome, the friction force can be controlled by the riveting degree of the rivet 302, the larger the riveting degree of the rivet 302 is, the larger the friction force is, the greater the difficulty of rotation is, and the friction force is possibly the same as or different from the friction force which is only needed to overcome between the circular lock catch 203 and the circular lock catch groove 202 in the clamping snake bone component 11; when the semi-rigid snake bone component 13 rotates, relative deflection occurs between snake bone joints when the steel wire can overcome the elastic deformation force of the semi-rigid connecting shaft, so that the clamping snake bone component 11 or/and the riveting snake bone component 12 can be bent firstly during operation, the semi-rigid snake bone component 13 can be bent later, the clamping snake bone component 11 or/and the riveting snake bone component 12 can be placed at the part needing to be bent in advance by an operator during assembly, the semi-rigid snake bone component 13 is placed at the other part needing not to be bent in advance, the effect required by the operator can be achieved, and sequential control over all parts in the snake bone is achieved.

In addition, the semi-rigid snake bone components 13 of the connecting ribs 103 with different thicknesses can be arranged to complete the assembly of the whole snake bone during the assembly, the connecting ribs 103 in the different semi-rigid snake bone unit sections 23 of the single semi-rigid snake bone components 13 can also be arranged to be different, and processing personnel can process the connecting ribs 103 with different thicknesses according to actual needs, so that the snake bone can be sequentially bent according to actual clinical requirements, sequential deflection is carried out according to the intention of an operator, and the snake bone can be more flexibly matched with the operator for use.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims (10)

1. A snake bone subassembly, includes snake bone subassembly body, its characterized in that: the snake bone component body comprises a plurality of snake bone component units (1) which are connected in sequence and have different bending strengths, and each snake bone component unit (1) comprises one or more snake bone unit sections (2) which are connected in sequence.

2. A snake bone assembly according to claim 1, wherein: the snake bone component unit (1) comprises a clamping snake bone component (11), a riveting snake bone component (12) and a semi-rigid snake bone component (13).

3. A snake bone assembly according to claim 2, wherein: clamping snake bone subassembly (11) include a plurality of joint snake bone unit sections (21) that connect gradually and be the tube-shape, rotate between adjacent joint snake bone unit section (21) and connect, the tip of joint snake bone unit section (21) is equipped with circular hasp groove (202) or circular hasp (203) with adjacent joint snake bone unit section (21) complex, rotate through circular hasp groove (202) and circular hasp (203) cooperation between adjacent joint snake bone unit section (21) and connect.

4. A snake bone assembly according to claim 3, wherein: the end face of each clamping snake bone unit section (21) is also provided with a convex block (204) or a groove (205) matched with the adjacent clamping snake bone unit section (21), and the adjacent clamping snake bone unit sections (21) are matched and limited through the convex blocks (204) and the grooves (205).

5. A snake bone component according to claim 2, wherein: the riveting snake bone component (12) comprises a plurality of riveting snake bone unit sections (22) which are sequentially connected and are cylindrical, adjacent riveting snake bone unit sections (22) are connected in a rotating mode, and the end portions of the riveting snake bone unit sections (22) are provided with circular connecting pieces (301) which are connected with the adjacent riveting snake bone unit sections (22) in a rotating mode through rivets (302).

6. A snake bone component according to claim 5, wherein: circular connecting piece (301) are including setting up respectively in first circular connecting piece (303) and the circular connecting piece of second (304) at the both ends of riveting snake bone unit festival (22), form between the terminal surface of first circular connecting piece (303) and riveting snake bone unit festival (22) and supply second circular connecting piece (304) male first circular concave shoulder (305) on adjacent riveting snake bone unit festival (22), form between the terminal surface of second circular connecting piece (304) and riveting snake bone unit festival (22) and supply first circular connecting piece (303) male second circular concave shoulder (306) on adjacent riveting snake bone unit festival (22).

7. A snake bone assembly according to claim 2, wherein: semi-rigid snake bone subassembly (13) are including semi-rigid snake bone unit section (23), semi-rigid snake bone unit section (23) are the tube-shape, set up relative first arc rectangular hole (101) and the rectangular hole of second arc (102) that set up on the lateral wall of semi-rigid snake bone unit section (23), just be located on the lateral wall of semi-rigid snake bone unit section (23) and constitute between the tip in the long rectangular hole of first arc (101) and the tip in the long rectangular hole of second arc (102) and can elastically deform's splice bar (103).

8. A snake bone component according to claim 7, wherein: the first arc-shaped long-strip hole (101) and the second arc-shaped long-strip hole (102) are arranged in a relative staggered or opposite mode in the axial direction of the semi-rigid snake bone unit joint (23).

9. A snake bone assembly according to claim 1, wherein: the side wall of the snake bone unit section (2) is integrally formed with a connecting sheet (14) which is bent towards the center of the snake bone component body, and the bent part of the connecting sheet (14) forms a steel wire channel (15) for a steel wire to pass through.

10. Endoscope, including the snake bone, its characterized in that: a snake bone comprising a snake bone component as claimed in any of claims 1 to 9.

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