CN216702510U

CN216702510U - Endoscope snake bone and endoscope

Info

Publication number: CN216702510U
Application number: CN202123063749.5U
Authority: CN
Inventors: 易锋; 黎静; 谭晓锋
Original assignee: Guangzhou Red Pine Medical Equipment Co ltd
Current assignee: Guangzhou Red Pine Medical Equipment Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-06-10
Anticipated expiration: 2031-12-07

Abstract

The utility model relates to an endoscope snake bone and an endoscope, wherein the endoscope snake bone comprises: the winding part is provided with a mounting cavity, the winding part is also provided with a first traction wire hole, a second traction wire hole, a third traction wire hole and a fourth traction wire hole which are distributed at intervals around the mounting cavity, the first traction wire hole, the second traction wire hole, the third traction wire hole and the fourth traction wire hole are all arranged along the axial extension of the winding part, the winding part is provided with at least three wire passing holes which are distributed at intervals along the circumferential direction of the winding part, and each wire passing hole is respectively communicated with the mounting cavity; the at least one wire passing hole is positioned between the first traction wire hole and the second traction wire hole, the at least one wire passing hole is positioned between the second traction wire hole and the third traction wire hole, and the at least one wire passing hole is positioned between the third traction wire hole and the fourth traction wire hole. Above-mentioned endoscope snake bone and endoscope can effectively connect the pull wire, and stability is strong, and does not influence the installation of other parts.

Description

Endoscope snake bone and endoscope

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an endoscope snake bone and an endoscope.

Background

With the development of medical technology, there has been developed an endoscope technology for visually inspecting a difficult-to-reach position of organs and the like in a human body to observe a diseased state. Generally, an endoscope includes an elongated insertion tube having a handle at an end of the insertion tube close to an operator and a visual inspection device such as a built-in camera at a distal end of the elongated insertion tube. In order to operate the endoscope in the human body, the endoscope comprises a snake bone which can be bent, and the orientation of the head of the snake bone end is adjusted through the bending of the snake bone, so that the observation visual angle is changed.

The endoscope is connected with the handle and the snake bone through the two traction wires, so that the snake bone is controlled by the handle to bend in four directions, and the traction wires are connected with the snake bone in a welding mode. In the prior art, the endoscope equipment is high in cost, and is disinfected and cleaned after being used, so that the endoscope equipment can be recycled. The mode has the risk of cross infection caused by incomplete disinfection, so that the disposable endoscope is produced, and the components such as the snake bone and the like are made of plastic materials, so that the disposable endoscope is used once.

However, at present, the snake bone made of disposable materials is difficult to connect the traction wire by a welding mode, and how to wind the traction wire on the snake bone without influencing the installation of other components is an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for an endoscope snake bone and endoscope that can effectively connect a pull wire, that is highly stable, and that does not affect the mounting of other components.

An endoscopic snake bone comprising: a connection portion for connecting with a tip; the winding part is connected with the connecting part and provided with an installation cavity, the winding part is also provided with first pulling wire holes, second pulling wire holes, third pulling wire holes and fourth pulling wire holes which are distributed at intervals around the installation cavity, the first pulling wire holes, the second pulling wire holes, the third pulling wire holes and the fourth pulling wire holes are all arranged along the axial extension of the winding part, the winding part is provided with at least three wire passing holes, the at least three wire passing holes are distributed at intervals along the circumferential direction of the winding part, and each wire passing hole is respectively communicated with the installation cavity; the at least one wire passing hole is located between the first traction wire hole and the second traction wire hole, the at least one wire passing hole is located between the second traction wire hole and the third traction wire hole, and the at least one wire passing hole is located between the third traction wire hole and the fourth traction wire hole.

The endoscope snake bone penetrates out a traction wire from the bottom of the first traction wire hole to the bottom along the axial direction of the winding part from bottom to top in the winding process, penetrates out the winding part through the wire passing hole between the first traction wire hole and the second traction wire hole, penetrates into the winding part through the wire passing hole between the second traction wire hole and the third traction wire hole, and finally penetrates into the winding part from top to bottom along the axial direction of the winding part from the top of the third traction wire hole. Then, another traction wire penetrates out of the bottom of the second traction wire hole from bottom to top along the axial direction of the winding part, then penetrates out of the winding part through the wire passing hole between the second traction wire hole and the third traction wire hole, then penetrates into the winding part through the wire passing hole between the third traction wire hole and the fourth traction wire hole, and finally penetrates into the winding part from top to bottom along the axial direction of the winding part from the top of the fourth traction wire hole. The endoscope snake bone can be stably connected with two traction wires through the combination of the four traction wire holes and the at least three wire passing holes, so that the four directions of the endoscope snake bone are effectively dragged, the winding is stable, the endoscope snake bone is not easy to slip, the traction wires do not occupy the position in the installation cavity, and the installation of other components and the normal use of the endoscope snake bone are not influenced.

In one embodiment, the number of the wire passing holes is at least six, at least six of the wire passing holes at least include a first wire passing hole, a second wire passing hole, a third wire passing hole, a fourth wire passing hole, a fifth wire passing hole and a sixth wire passing hole which are sequentially arranged along the circumferential direction of the winding portion, the first wire passing hole and the second wire passing hole are located between the first traction wire hole and the second traction wire hole, the third wire passing hole and the fourth wire passing hole are located between the second traction wire hole and the third traction wire hole, and the fifth wire passing hole and the sixth wire passing hole are located between the third traction wire hole and the fourth traction wire hole.

In one embodiment, the winding part is further provided with a first guide groove, the first guide groove is arranged on the outer wall of the winding part, and the first wire passing hole and the second wire passing hole are communicated with the first guide groove;

the wire winding part is also provided with a second guide groove, the second guide groove is arranged on the outer wall of the wire winding part, and the third wire passing hole and the fourth via hole are communicated with the second guide groove;

the wire winding portion is further provided with a third guide groove, the third guide groove is formed in the outer wall of the wire winding portion, and the fifth wire passing hole and the sixth wire passing hole are communicated with the third guide groove.

In one embodiment, the first guide groove is provided to extend in a circumferential direction of the winding portion, the second guide groove is provided to extend in the circumferential direction of the winding portion, and the third guide groove is provided to extend in the circumferential direction of the winding portion.

In one embodiment, the winding portion further includes a mounting table disposed on an inner wall of the mounting cavity, and the first pulling line hole, the second pulling line hole, the third pulling line hole and the fourth pulling line hole are disposed on the mounting table.

In one embodiment, the mounting tables include a first mounting table, a second mounting table, a third mounting table and a fourth mounting table which are sequentially arranged along the circumferential direction of the mounting cavity, the first mounting table is provided with the first pulling line hole, the second mounting table is provided with the second pulling line hole, the third mounting table is provided with the third pulling line hole, and the fourth mounting table is provided with the fourth pulling line hole.

In one embodiment, the mounting table is provided with a limiting part for preventing the traction wire from entering the mounting cavity.

In one embodiment, the limiting portion includes a first boss corresponding to the first pull wire hole, a second boss corresponding to the second pull wire hole, a third boss corresponding to the third pull wire hole, and a fourth boss corresponding to the fourth pull wire hole, the first pull wire hole is located between the first boss and the inner wall of the mounting cavity, the second pull wire hole is located between the second boss and the inner wall of the mounting cavity, the third pull wire hole is located between the third boss and the inner wall of the mounting cavity, and the fourth pull wire hole is located between the fourth boss and the inner wall of the mounting cavity.

In one embodiment, the connecting portion and the winding portion are of an integral injection molding structure.

An endoscope comprising an endoscope snake bone according to any of the above.

Above-mentioned endoscope, at the wire winding in-process, wear out from the axial from bottom to top of winding portion from the bottom of first traction wire hole with a pull wire, the line hole of crossing between rethread first traction wire hole and the second traction wire hole wears out winding portion, and the line hole of crossing between second traction wire hole and the third traction wire hole penetrates winding portion again, and the top of follow third traction wire hole penetrates from top to bottom along the axial of winding portion at last. Then, another traction wire penetrates out of the bottom of the second traction wire hole from bottom to top along the axial direction of the winding part, then penetrates out of the winding part through the wire passing hole between the second traction wire hole and the third traction wire hole, then penetrates into the winding part through the wire passing hole between the third traction wire hole and the fourth traction wire hole, and finally penetrates into the winding part from top to bottom along the axial direction of the winding part from the top of the fourth traction wire hole. The endoscope snake bone can be stably connected with two traction wires through the combination of the four traction wire holes and the at least three wire passing holes, so that the four directions of the endoscope snake bone are effectively dragged, the winding is stable, the endoscope snake bone is not easy to slip, the traction wires do not occupy the position in the installation cavity, and the installation of other components and the normal use of the endoscope snake bone are not influenced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a first schematic structural view of an endoscope snake bone according to an embodiment;

FIG. 2 is a second schematic structural view of a snake bone of the endoscope according to an embodiment;

FIG. 3 is a third schematic structural view of an endoscope snake bone according to an embodiment;

fig. 4 is a schematic view of the general structure of an endoscope snake bone in one embodiment.

Description of reference numerals:

100. an endoscopic snake bone; 110. a connecting portion; 120. a winding part; 121. a first pulling wire hole; 122. a second pulling wire hole; 123. a third pulling wire hole; 124. a fourth pulling wire hole; 125. a mounting cavity; 126. a first wire passing hole; 127. a second wire passing hole; 128. a third wire passing hole; 129. a fourth wire passing hole; 130. a fifth wire passing hole; 131. a sixth wire passing hole; 132. a first guide groove; 133. a second guide groove; 134. a third guide groove; 135. an installation table; 1351. a first mounting table; 1352. a second mounting table; 1353. a third mounting table; 1354. a fourth mounting table; 136. a limiting part; 1361. a first boss; 1362. a second boss; 1363. a third boss; 1364. and a fourth boss.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In one embodiment, referring to fig. 1, 2, 3 and 4, an endoscopic snake bone 100 comprises: a connection portion 110, the connection portion 110 being for connection with a tip; the winding portion 120 is connected with the connecting portion 110, the winding portion 120 is provided with a mounting cavity 125, the winding portion 120 is further provided with first pulling wire holes 121, second pulling wire holes 122, third pulling wire holes 123 and fourth pulling wire holes 124 which are arranged around the mounting cavity 125 at intervals, the mounting cavity 125, the first pulling wire holes 121, the second pulling wire holes 122, the third pulling wire holes 123 and the fourth pulling wire holes 124 are all arranged along the axial direction of the winding portion 120 in an extending mode, the winding portion 120 is provided with at least three wire passing holes, the at least three wire passing holes are arranged at intervals along the circumferential direction of the winding portion 120, and each wire passing hole is communicated with the mounting cavity 125; at least one wire passing hole is located between the first pulling wire hole 121 and the second pulling wire hole 122, at least one wire passing hole is located between the second pulling wire hole 122 and the third pulling wire hole 123, and at least one wire passing hole is located between the third pulling wire hole 123 and the fourth pulling wire hole 124.

In the winding process of the endoscope snake bone 100, a pulling wire penetrates out from the bottom of the first pulling wire hole 121 along the axial direction of the winding part 120 from the bottom to the top, then penetrates out of the winding part 120 through the wire passing hole between the first pulling wire hole 121 and the second pulling wire hole 122, then penetrates into the winding part 120 through the wire passing hole between the second pulling wire hole 122 and the third pulling wire hole 123, and finally penetrates in from the top to the bottom along the axial direction of the winding part 120 from the top of the third pulling wire hole 123. Then, another pulling wire is passed through the bottom of the second pulling wire hole 122 from bottom to top along the axial direction of the winding portion 120, then passed through the winding portion 120 through the wire passing hole between the second pulling wire hole 122 and the third pulling wire hole 123, then passed through the winding portion 120 through the wire passing hole between the third pulling wire hole 123 and the fourth pulling wire hole 124, and finally passed through the top of the fourth pulling wire hole 124 from top to bottom along the axial direction of the winding portion 120. The endoscope snake bone 100 can be stably connected with two traction wires through the combination of the four traction wire holes and the at least three wire through holes, so that the four directions of the endoscope snake bone are effectively dragged, the winding is stable, the endoscope snake bone is not easy to slip, the traction wires do not occupy the positions in the mounting cavity 125, and the mounting of other components and the normal use of the endoscope snake bone 100 are not influenced.

In one embodiment, referring to fig. 1, the number of the wire holes is at least six. The at least six wire passing holes at least include a first wire passing hole 126, a second wire passing hole 127, a third wire passing hole 128, a fourth wire passing hole 129, a fifth wire passing hole 130 and a sixth wire passing hole 131 which are sequentially arranged along the circumferential direction of the winding portion 120. The first and second

wire passing holes

126 and 127 are located between the first and second pulling

wire holes

121 and 122, the third and fourth

wire passing holes

128 and 129 are located between the second and third pulling

wire holes

122 and 123, and the fifth and sixth

wire passing holes

130 and 131 are located between the third and fourth pulling

wire holes

123 and 124. So, provide new wire winding mode for two pull wires: a traction wire penetrates from bottom to top through a first traction wire hole 121, penetrates through the winding part 120 from a first wire passing hole 126, penetrates through the winding part 120 through a second wire passing hole 127 to continue to be wired, penetrates through the winding part 120 from a third wire passing hole 128, penetrates through the winding part 120 through a fourth wire passing hole 129, penetrates through a third traction wire hole 123 from top to bottom, and is wound and fixed after being tensioned. Another pulling wire penetrates from bottom to top through the second pulling wire hole 122, then penetrates out of the winding part 120 through the third wire passing hole 128, penetrates into the winding part 120 through the fourth wire passing hole 129 to continue to be wired, then penetrates out of the winding part 120 through the fifth wire passing hole 130, penetrates into the winding part 120 through the sixth wire passing hole 131, penetrates into the fourth pulling wire hole 124 from top to bottom, and forms winding fixation after tensioning. And further reduce occupation space after taut, increased frictional force simultaneously, avoid skidding, and then be favorable to improving the use quality and the reliability of endoscope snake bone 100. The present embodiment provides only one specific winding method, but not limited thereto.

In one embodiment, referring to fig. 1, fig. 2 and fig. 3, the winding portion 120 is further provided with a first guide slot 132, the first guide slot 132 is disposed on an outer wall of the winding portion 120, and the first wire passing hole 126 and the second wire passing hole 127 are communicated with the first guide slot 132. Further, the winding portion 120 is further provided with a second guide groove 133, the second guide groove 133 is disposed on an outer wall of the winding portion 120, and the third wire passing hole 128 and the fourth via hole are communicated with the second guide groove 133. Furthermore, the winding portion 120 is further provided with a third guide groove 134, the third guide groove 134 is disposed on the outer wall of the winding portion 120, and the fifth wire passing hole 130 and the sixth wire passing hole are communicated with the third guide groove 134. So, can hide the pull wire, avoid the pull wire arch, guarantee the planarization of wire winding portion 120 outer wall, reduce the wearing and tearing probability of pull wire.

In one embodiment, referring to fig. 2, 3 and 4, the first guide groove 132 extends along the circumferential direction of the winding portion 120, the second guide groove 133 extends along the circumferential direction of the winding portion 120, and the third guide groove 134 extends along the circumferential direction of the winding portion 120. So, at the wire winding in-process, be favorable to improving wire winding convenience through the guide way.

In one embodiment, referring to fig. 1, the winding portion 120 further has a mounting block 135, the mounting block 135 is disposed on an inner wall of the mounting cavity 125, and the first pulling wire hole 121, the second pulling wire hole 122, the third pulling wire hole 123 and the fourth pulling wire hole 124 are disposed on the mounting block 135. In this way, the winding area can be limited on the mounting table 135, and the space of the mounting cavity 125 is not occupied, thereby avoiding affecting the installation and use of other components.

In one embodiment, referring to fig. 1, the mounting table 135 includes a first mounting table 1351, a second mounting table 1352, a third mounting table 1353 and a fourth mounting table 1354 arranged in sequence along a circumferential direction of the mounting cavity 125, the first mounting table 1351 is provided with a first pulling wire hole 121, the second mounting table 1352 is provided with a second pulling wire hole 122, the third mounting table 1353 is provided with a third pulling wire hole 123, and the fourth mounting table 1354 is provided with a fourth pulling wire hole 124. In this way, the first pulling line hole 121, the second pulling line hole 122, the third pulling line hole 123 and the fourth pulling line hole 124 are provided with opening positions, respectively, and the structural strength of the winding portion 120 is improved.

In one embodiment, referring to fig. 1, the mounting platform 135 is provided with a limiting portion 136, and the limiting portion 136 is used for preventing the traction wire from entering the mounting cavity 125. Thus, the pull wire can be limited on the mounting table 135 by the limiting portion 136, and the space of the mounting cavity 125 is not occupied, so that the influence on the mounting and use of other components is avoided.

Specifically, referring to fig. 1, the limiting portion 136 includes a first boss 1361 corresponding to the first pulling line hole 121, a second boss 1362 corresponding to the second pulling line hole 122, a third boss 1363 corresponding to the third pulling line hole 123, and a fourth boss 1364 corresponding to the fourth pulling line hole 124, wherein the first pulling line hole 121 is located between the first boss 1361 and the inner wall of the mounting cavity 125, the second pulling line hole 122 is located between the second boss 1362 and the inner wall of the mounting cavity 125, the third pulling line hole 123 is located between the third boss 1363 and the inner wall of the mounting cavity 125, and the fourth pulling line hole 124 is located between the fourth boss 1364 and the inner wall of the mounting cavity 125. In this way, the pull wire can be further restricted on the mount table 135 by the restricting action of the first boss 1361, the second boss 1362, the third boss 1363, and the fourth boss 1364.

Alternatively, the connection portion 110 and the winding portion 120 may be connected by a plug, a rivet, an adhesive, a snap connection, or other connection methods. Alternatively, the connection portion 110 and the winding portion 120 are integrally formed.

Specifically, referring to fig. 1, 2, 3 and 4, the connecting portion 110 and the winding portion 120 are integrally formed by injection molding. Thus, the structure is simple, the manufacturing is convenient, the cost is low, and meanwhile, the connection stability of the connecting part 110 and the winding part 120 is improved, so that the structural stability of the endoscope snake bone 100 is ensured. The present embodiment provides only a specific connection manner between the connection portion 110 and the winding portion 120, but is not limited thereto.

In one embodiment, an endoscope (not shown) includes the endoscope snake bone 100 of the previous embodiments.

In the endoscope, during the winding process, a pulling wire is passed through the bottom of the first pulling wire hole 121 from bottom to top along the axial direction of the winding portion 120, then passed through the winding portion 120 through the wire passing hole between the first pulling wire hole 121 and the second pulling wire hole 122, then passed through the winding portion 120 through the wire passing hole between the second pulling wire hole 122 and the third pulling wire hole 123, and finally passed through the top of the third pulling wire hole 123 from top to bottom along the axial direction of the winding portion 120. Then, another pulling wire is passed through the bottom of the second pulling wire hole 122 from bottom to top along the axial direction of the winding portion 120, then passed through the winding portion 120 through the wire passing hole between the second pulling wire hole 122 and the third pulling wire hole 123, then passed through the winding portion 120 through the wire passing hole between the third pulling wire hole 123 and the fourth pulling wire hole 124, and finally passed through the top of the fourth pulling wire hole 124 from top to bottom along the axial direction of the winding portion 120. The endoscope snake bone 100 can be stably connected with two traction wires through the combination of the four traction wire holes and the at least three wire through holes, so that the four directions of the two traction wires are effectively dragged, the winding is stable, the two traction wires are not easy to slip, the traction wires do not occupy the position in the installation cavity 125, and the installation of other components and the normal use of the endoscope snake bone 100 are not influenced.

The technical features of the embodiments described above may be arbitrarily combined for the sake of brevity, and all possible combinations of the technical features in the embodiments described above are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An endoscopic snake bone, comprising:

a connection portion for connecting with a tip;

the winding part is connected with the connecting part and provided with an installation cavity, the winding part is also provided with first pulling wire holes, second pulling wire holes, third pulling wire holes and fourth pulling wire holes which are distributed at intervals around the installation cavity, the first pulling wire holes, the second pulling wire holes, the third pulling wire holes and the fourth pulling wire holes are all arranged along the axial extension of the winding part, the winding part is provided with at least three wire passing holes, the at least three wire passing holes are distributed at intervals along the circumferential direction of the winding part, and each wire passing hole is respectively communicated with the installation cavity;

the at least one wire passing hole is located between the first traction wire hole and the second traction wire hole, the at least one wire passing hole is located between the second traction wire hole and the third traction wire hole, and the at least one wire passing hole is located between the third traction wire hole and the fourth traction wire hole.

2. The endoscope snake bone according to claim 1, wherein the number of the wire passing holes is at least six, at least six of the wire passing holes comprise at least a first wire passing hole, a second wire passing hole, a third wire passing hole, a fourth wire passing hole, a fifth wire passing hole and a sixth wire passing hole which are sequentially arranged along the circumferential direction of the wire wrapping portion, the first wire passing hole and the second wire passing hole are located between the first traction wire hole and the second traction wire hole, the third wire passing hole and the fourth wire passing hole are located between the second traction wire hole and the third traction wire hole, and the fifth wire passing hole and the sixth wire passing hole are located between the third traction wire hole and the fourth traction wire hole.

3. The endoscope snake bone as claimed in claim 2, wherein the wire wrapping portion is further provided with a first guide groove, the first guide groove is provided on the outer wall of the wire wrapping portion, and the first wire passing hole and the second wire passing hole are communicated with the first guide groove;

4. The endoscope snake bone according to claim 3, wherein the first guide groove is provided extending in the circumferential direction of the winding portion, the second guide groove is provided extending in the circumferential direction of the winding portion, and the third guide groove is provided extending in the circumferential direction of the winding portion.

5. An endoscope snake bone according to any of the claims 1-4, wherein said wire wrapping portion is further provided with a mounting table, said mounting table is provided on the inner wall of said mounting cavity, and said first, second, third and fourth wire drawing holes are provided on said mounting table.

6. The endoscope snake bone of claim 5, wherein the mounting table comprises a first mounting table, a second mounting table, a third mounting table and a fourth mounting table arranged in sequence along the circumferential direction of the mounting cavity, wherein the first mounting table is provided with the first traction wire hole, the second mounting table is provided with the second traction wire hole, the third mounting table is provided with the third traction wire hole, and the fourth mounting table is provided with the fourth traction wire hole.

7. The endoscopic snake bone according to claim 5, wherein said mounting platform is provided with a stop portion for preventing a pull wire from entering said mounting cavity.

8. The endoscope snake bone of claim 7, wherein said limiting portion comprises a first boss corresponding to said first lead wire hole, a second boss corresponding to said second lead wire hole, a third boss corresponding to said third lead wire hole, and a fourth boss corresponding to said fourth lead wire hole, wherein said first lead wire hole is located between said first boss and the inner wall of said mounting cavity, said second lead wire hole is located between said second boss and the inner wall of said mounting cavity, said third lead wire hole is located between said third boss and the inner wall of said mounting cavity, and said fourth lead wire hole is located between said fourth boss and the inner wall of said mounting cavity.

9. An endoscope snake bone according to any of claims 1-4 and wherein said connecting portion and said wire wrapping portion are of an integral injection molded construction.

10. An endoscope, characterized in that it comprises an endoscope snake according to any of claims 1-9.