CN210931296U

CN210931296U - Snake bone mechanism and endoscope

Info

Publication number: CN210931296U
Application number: CN201920923150.8U
Authority: CN
Inventors: 梁凯涛; 王飞龙; 王超
Original assignee: Zhuhai Seesheen Medical Technology Co ltd
Current assignee: Zhuhai Seesheen Medical Technology Co ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-07-07
Anticipated expiration: 2029-06-18

Abstract

The utility model discloses a snake bone structure and an endoscope comprising the same, wherein, the snake bone structure comprises a main body, the main body comprises a plurality of snake bone joints which are connected end to end, the snake bone joints comprise two groups of male end joints and female end joints which are respectively arranged on the end surfaces of two sides of the snake bone joints, the two groups of male end joints and the female end joints are arranged oppositely along the radial direction, the male end joints comprise U-shaped hook-shaped sheet bodies, the sheet bodies extend outwards along the radial direction, the female end joints comprise annular through holes, and the sheet bodies are embedded into the through holes on one side end surface adjacent to the snake bone joints; compared with the prior art, the utility model discloses simple structure, low cost, the installation is stable, has liberated the articular inner chamber space of snake bone, links the assembly more easily, is favorable to matching to prepare more accords with the endoscope of medical industry demand.

Description

Snake bone mechanism and endoscope

Technical Field

The utility model relates to the field of medical appliances, in particular to a snake bone mechanism and an endoscope.

Background

The endoscope is a common medical instrument, the front end of an insertion tube of the endoscope is provided with a bending part which can be actively bent according to requirements, the bending function is provided by a snake bone, and the snake bone is a part which is formed by connecting a plurality of special tubular joints and can be bent at a certain angle. In the conventional technology, adjacent snake bones are connected by pins, and the connection mode has the following disadvantages:

the process is complicated, and the pin assembling process is difficult to control: the processing requirement of the pin is higher, and the cost is higher; the pin connecting shaft is larger in required space, occupies the space of the inner cavity of the snake bone and exceeds the size of the outer diameter of the snake bone, and has certain limitation on the development of the endoscope with the small channel.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide a snake bone mechanism and endoscope, simple structure, low cost has liberated the inner chamber space of snake bone joint, links the assembly more easily.

In order to compensate the deficiency of the prior art, the embodiment of the utility model provides an adopt technical scheme is:

the first aspect provides a snake bone structure, including the main part, the main part includes the snake bone joint that a plurality of heads and tails connect mutually, the snake bone joint include two sets ofly set up respectively in public end joint and female end joint on the both sides terminal surface of snake bone joint, two sets of public end joint with female end joint sets up along radial relative, public end joint is including being the lamellar body that the U type colluded the form, the lamellar body is along radially outwards stretching out, female end joint is including being annular through-hole, the lamellar body is embedded into adjacently on a side terminal surface of snake bone joint within the through-hole.

Further, female end joint still includes female end limit, female end limit includes zonulae occludens's first hypotenuse and second hypotenuse, first hypotenuse with the second hypotenuse respectively with the pitch arc end both sides of through-hole are held the butt.

Furthermore, the female end connector further comprises a female end bearing sheet, and the through hole is formed in the female end bearing sheet.

Further, the public end connector still includes two sets of recesses, the recess by the terminal surface part of snake bone joint is inwards sunken to form, and is two sets of the recess is connected to respectively the lamellar body and for the lamellar body symmetry.

Furthermore, this technical scheme still including set up in the tip snake bone joint at main part both ends, only be provided with on the terminal surface of one side of tip snake bone joint with snake bone joint assorted male end connects or female end connects.

Further, the difference between the diameter of the through hole and the width of the sheet body is 0.2-0.5 mm.

A second aspect provides an endoscope comprising a snake bone structure as described in any of the above.

The embodiment of the utility model provides an in one or more technical scheme, following beneficial effect has at least: two groups of male end joints and female end joints are respectively arranged on the end surfaces of two sides of the snake bone joint, the arrangement of the joints ensures that the external diameter size of the snake bone joint cannot be exceeded, and meanwhile, two groups of the joints can ensure that the connection between the adjacent snake bone joints has good stability; the male end connector and the female end connector are oppositely arranged along the radial direction, so that the inner cavity space of the snake bone joint is not occupied, and the production and assembly between the adjacent snake bone joints can be facilitated; annular through-hole supplies the lamellar body embedding and supports its at the through-hole internal rotation, and the lamellar body sets up to the U type and colludes the form, can provide the pivot for adjacent snake bone joint and radially have anticreep limiting displacement simultaneously, and both can realize closely matching, need not additionally to set up the pin and connect adjacent snake bone joint. Therefore, the utility model discloses simple structure, low cost, the installation is stable, has liberated the inner chamber space of snake bone joint, and the assembly is linked more easily, is favorable to matching to prepare more accords with the endoscope of medical industry demand.

Drawings

The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.

Fig. 1 is a schematic front view of a snake bone structure according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a snake bone structure according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a snake bone joint according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a snake bone joint according to an embodiment of the present invention;

fig. 5 is a schematic view of an assembly structure of adjacent snake bone joints according to an embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The embodiments of the present invention will be further explained with reference to the drawings.

Referring to fig. 1-5, the embodiment of the utility model provides a snake bone structure, including main part 10, main part 10 includes a plurality of snake bone joints 101 that end to end, snake bone joint 101 include two sets ofly set up respectively in public end joint 102 and female end joint 103 on the both sides terminal surface of snake bone joint 101 are two sets of public end joint 102 with female end joint 103 sets up along radial relative, public end joint 102 colludes the lamellar body 1020 of form including being the U type, lamellar body 1020 radially outwards stretches out, female end joint 103 is including being annular through-hole 1030, lamellar body 1020 is embedded into adjacently on a side terminal surface of snake bone joint 101 within through-hole 1030.

In this embodiment, the number of the snake bone joints 101 is 17, which is not limited in practice, and the design number can be adapted according to medical requirements;

two groups of male end connectors 102 and female end connectors 103 are respectively arranged on the end faces of two sides of the snake bone joint 101, the connectors are arranged so that the outer diameter of the snake bone joint 101 cannot be exceeded, and meanwhile, two groups of connectors are arranged so that the connection between the adjacent snake bone joints 101 can be ensured to have good stability; the male end connector 102 and the female end connector 103 are arranged oppositely along the radial direction, so that the inner cavity space of the snake bone joint 101 is not occupied, and the production and assembly between the adjacent snake bone joints 101 can be facilitated; annular through-hole 1030 supplies lamellar body 1020 embedding and supports its rotation in through-hole 1030, and lamellar body 1020 sets up to the U type and colludes the form, can provide the pivot for adjacent snake bone joint 101 and have anticreep limiting displacement in footpath simultaneously, and both can realize closely matching, need not additionally to set up the pin and connect adjacent snake bone joint 101. Therefore, the utility model discloses simple structure, low cost, the installation is stable, has liberated the inner chamber space of snake bone joint 101, links the assembly more easily, is favorable to matching to prepare more accords with the endoscope of medical industry demand.

Further, another embodiment of the utility model provides a snake bone structure still, wherein, female end joint 103 still includes female end limit, female end limit includes zonulae occludens's first hypotenuse 1031 and second hypotenuse 1032, first hypotenuse 1031 with second hypotenuse 1032 respectively with the pitch arc end both sides of through-hole 1030 butt.

In this embodiment, the two oblique edges can seal two sides of the arc end of the through hole 1030, so that the through hole 1030 is kept in a complete closed state, the sheet body 1020 cannot slide down when being embedded and placed, and the placing stability is good; the angle between the first inclined edge 1031 and the second inclined edge 1032 is preferably an obtuse angle.

Further, another embodiment of the present invention further provides a snake bone structure, wherein the female connector 103 further comprises a female bearing sheet 1033, and the through hole 1030 is disposed in the female bearing sheet 1033.

In this embodiment, set up through-hole 1030 on female end carrier 1033, guarantee that through-hole 1030 is in female end carrier 1033's inside on, consequently with the lamellar body 1020 embedding of U type in through-hole 1030, two limits of lamellar body 1020 can carry out the butt with female end carrier 1033 respectively to can provide the support when embedding in through-hole 1030 for lamellar body 1020.

Further, another embodiment of the present invention provides a snake bone structure, wherein the male end connector 102 further comprises two sets of grooves 1021, the grooves 1021 are formed by inward recessing of the end surface portion of the snake bone joint 101, and the grooves 1021 are connected to the sheet body 1020 and are symmetrical to the sheet body 1020.

In the present embodiment, the groove 1021 is designed to facilitate the hand to hold and rotate the snake bone joint 101, and at the same time, the material can be saved, and the appearance of the snake bone joint 101 has a certain aesthetic property.

Further, another embodiment of the present invention provides a snake bone structure, wherein, further including set up in the tip snake bone joint 104 at main part 10 both ends, tip snake bone joint 104 only is provided with on a side end face with snake bone joint 101 assorted male end joint 102 or female end joint 103.

In this embodiment, the end snake bone joints 104 at both ends of the main body 10 do not need to be matched with the snake bone joints 101 at both sides, so that the above design is only needed, the purpose of saving materials can be achieved, and the appearance is more overall beautiful.

Further, another embodiment of the present invention also provides a snake bone structure, wherein the difference between the diameter of the through hole 1030 and the width of the sheet body 1020 is 0.2-0.5 mm.

In this embodiment, when the sheet body 1020 is placed in the through hole 1030, the sheet body 1020 cannot be tightly fitted, which may cause the sheet body 1020 to be blocked so as not to rotate, but too loose may cause the sheet body 1020 to be unstable to be installed, considering the connection precision between the two, and according to the experience of the inventor, the difference between the diameter of the through hole 1030 and the width of the sheet body 1020 is 0.2-0.5mm, which can avoid the above problems as much as possible.

The utility model also provides an endoscope, including above arbitrary snake bone structure.

In the embodiment, the endoscope is manufactured by adopting the snake bone structure, is low in cost, is easier to link and assemble, is suitable for small channel research and development, and achieves the purpose of improving production.

While the preferred embodiment and basic principles of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is intended to cover various modifications, equivalents and alternatives falling within the scope of the invention as claimed.

Claims

1. A snake bone structure characterized by: the snake bone joint comprises a main body, the main part includes a plurality of end to end's snake bone joint, the snake bone joint include two sets ofly set up respectively in public end joint and female end joint on the both sides terminal surface of snake bone joint are two sets of public end joint with female end joint sets up along radial relative, public end joint colludes the lamellar body of form including being the U type, the lamellar body stretches out along radial outside, female end joint is including being annular through-hole, the lamellar body is embedded into adjacently on a side terminal surface of snake bone joint within the through-hole.

2. A snake bone structure according to claim 1, wherein: female end joint still includes female end limit, female end limit includes zonulae occludens's first hypotenuse and second hypotenuse, first hypotenuse with the second hypotenuse respectively with pitch arc end both sides of through-hole are held the butt.

3. A snake bone structure according to claim 1, wherein: the female end connector further comprises a female end bearing sheet, and the through hole is formed in the female end bearing sheet.

4. A snake bone structure according to claim 1, wherein: public end joint still includes two sets of recesses, the recess by the terminal surface part of snake bone joint is inwards sunken to form, and is two sets of the recess is connected to respectively the lamellar body just for the lamellar body symmetry.

5. A snake bone structure according to any one of claims 1-4, wherein: the snake bone joint is characterized by further comprising end snake bone joints arranged at two ends of the main body, and male end connectors or female end connectors matched with the snake bone joints are arranged on the end face of only one side of each end snake bone joint.

6. A snake bone structure according to claim 1, wherein: the difference between the diameter of the through hole and the width of the sheet body is 0.2-0.5 mm.

7. An endoscope, characterized by: comprising a snake bone structure according to any of claims 1-6.