Endoscope and endoscope rear connecting ring

Abstract

The utility model discloses an endoscope and a rear connecting ring thereof, and belongs to the field of medical instruments. The endoscope rear connecting ring comprises a front end part used for being inserted into a hose; the rear end part is used for welding the snake bone; wherein a plurality of anti-falling protrusions are arranged on the front end portion along the axial plane array of the front end portion, the anti-falling protrusions incline towards the rear end portion, and the inclination angle a is larger than 120 degrees. The anti-disengaging protrusion is combined with limitation of the inclination angle a of the anti-disengaging protrusion, so that when the front end portion is matched with the hose, the anti-disengaging protrusion can be firmly clamped into or embedded into the hose, the possibility that the hose slips in the direction away from the snake bone is greatly reduced, meanwhile, in the process that the front end portion is connected with the hose, the connecting smoothness of the front end portion and the hose can be guaranteed, and the anti-disengaging effect is good. According to the design of the rear connecting ring, compared with the prior art that a hoop is directly additionally arranged outside, the stepped feeling of pipe body matching is reduced, and discomfort of the human body is avoided.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and more specifically, to an endoscope and an endoscope rear adapter ring. Background Art

[0002] An endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics, software, etc. It can enter the stomach through the mouth or enter the body through other natural orifices, so as to present the lesion to the doctor. An endoscope usually includes a lens system, a light guide beam, a snake bone or a control handle, etc. Among them, the rear adapter ring of the endoscope is used to connect the hose and the snake bone, and the connection stability needs to be considered during the manufacturing process.

[0003] For example, the Chinese patent document (CN 219183646 U) provides a slotted endoscope adapter ring, which includes a tubular adapter ring section and an insertion section coaxially connected to one end of the adapter ring section for connecting the insertion tube of the endoscope. The diameter of the insertion section is smaller than that of the adapter ring section; the insertion section is provided with a long strip-shaped slot starting from the end face far from the adapter ring section and extending towards the adapter ring section. The capillary is welded and fixed on the slot. The capillary is welded by three solder joints with the same interval distance respectively arranged on the upper and lower sides of the slot. The slot is rectangular, the width of the slot is slightly smaller than the diameter of the capillary, and the capillary is fixed by being embedded into the slot from the inside of the adapter ring outwards.

[0004] The above-mentioned adapter ring section is generally used to connect the snake bone, and the insertion section is generally connected to the hose by glue. However, the connection method has insufficient strength. Once the hose is loosened from the rear adapter ring, it is easy to cause medical accidents.

[0005] In view of the above problems, the related art does not provide an effective solution. Summary of the Utility Model

[0006] In order to solve the problems that may exist in the related art, some embodiments of the present application provide an endoscope rear adapter ring, which is tubular and includes: a front end portion for inserting a hose; a rear end portion for welding a snake bone; wherein, a plurality of anti-loosening protrusions are arranged in an array along the axial plane of the front end portion, the anti-loosening protrusions incline towards the rear end portion, and the inclination angle a is greater than 120°.

[0007] Further, the inclination angle a is greater than 135° and less than 165°.

[0008] Further, the anti-loosening protrusion is in a sharp-corner shape, and the sharp corner faces the rear end portion.

[0009] Further, the anti-loosening protrusion is in a sheet structure, a cut groove is formed in the rear end portion inside the anti-loosening protrusion, and the anti-loosening protrusion is formed by bending the tube wall of the front end portion outwards.

[0010] Furthermore, the front end portion and the rear end portion have the same diameter.

[0011] Furthermore, it includes a snake bone, a snake bone sleeve, a hose and the endoscope rear connecting ring in the above scheme; the front end is covered with glue and inserted into the hose; the snake bone is welded to the rear end, and the snake bone sleeve is sleeved onto the outside of the snake bone; the hose and the snake bone sleeve are abutted against each other.

[0012] Furthermore, the hose comprises three layers, namely an outer layer, a middle layer and an inner layer from the outside to the inside, the outer layer and the inner layer are made of nylon, the inner layer is a stainless steel braided layer, and the anti-slip protrusion is embedded in the inner layer.

[0013] Furthermore, a notch is formed at the front end portion, the notch extends from the end surface of the front end portion toward the rear end portion, the notch avoids the anti-slip protrusion, and a capillary is welded in the notch.

[0014] Furthermore, the outer side wall of the hose is aligned with the outer side wall of the snake-bone sleeve.

[0015] Furthermore, one end of the hose abutting against the snake-bone sleeve is connected to the snake-bone sleeve via a heat shrink tube.

[0016] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0017] The anti-slip protrusion combined with the limitation of its inclination angle a enables the anti-slip protrusion to be firmly stuck or embedded in the hose when the front end is matched with the hose, greatly reducing the possibility of the hose slipping away from the snake bone. At the same time, during the process of connecting the front end with the hose, the smoothness of the connection between the front end and the hose can also be ensured. Moreover, compared with the related art of directly adding a clamp on the outside, the rear connection ring design in this application reduces the step feeling of the pipe body matching and avoids causing discomfort to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0019] Figure 1 It is a schematic diagram of a partial cross-sectional structure of an endoscope according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the structure of an endoscope rear connection ring according to an embodiment of the present application;

[0021] Figure 3Schematic diagram of the partial magnification structure of the endoscope rear adapter according to an embodiment of the present application;

[0022] Figure 4 Schematic diagram of the endoscope rear adapter structure according to an embodiment of the present application;

[0023] Figure 5 Schematic diagram of the cooperation structure between the endoscope rear adapter and the capillary according to an embodiment of the present application;

[0024] Label description:

[0025] 100, rear adapter; 110, front end; 111, anti - detachment protrusion; 1110, cutting groove; 112, notch; 120, rear end;

[0026] 200, flexible tube;

[0027] 300, snake bone; 310, snake bone sleeve;

[0028] 400, capillary. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above - mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so as to describe the embodiments of the present application here.

[0031] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0032] As Figure 1 , 2 shown, this application provides an endoscope rear adapter 100, which is tubular and includes a front end portion 110 and a rear end portion 120. The front end portion 110 is used to insert into the flexible tube 200; the rear end portion 120 is used to weld the snake bone 300.

[0033] Specifically, as Figure 1 shown, the endoscope rear adapter 100 is applied to an endoscope. The endoscope includes a snake bone 300, a snake bone sleeve 310 and a flexible tube 200. The front end portion 110 is covered with glue and inserted into the flexible tube 200. The snake bone 300 is welded to the rear end portion 120, and the snake bone sleeve 310 is sleeved on the outside of the snake bone 300; the flexible tube 200 abuts against the snake bone sleeve 310. More specifically, the snake bone 300 is welded to the end face of the rear end portion 120.

[0034] Generally, the flexible tube 200 is arranged between the endoscope handle and the snake bone 300. The steel wire in the handle sequentially passes through the handle, the flexible tube 200 and the snake bone 300 to achieve precise control of the snake bone 300 by the endoscope handle.

[0035] Among them, as Figure 3As shown, a number of anti - detachment protrusions 111 are arranged in an array along the axial surface of the front end 110. The anti - detachment protrusions 111 incline towards the rear end 120, and the inclination angle a is greater than 120°, such as 130°, 132°, 140° or 145°, etc. In this way, with the limitation of the inclination angle a of the anti - detachment protrusions 111, when the front end 110 is fitted with the hose 200, the anti - detachment protrusions 111 can be snapped into or embedded in the hose 200, greatly reducing the possibility of the hose 200 slipping away from the snake bone 300. At the same time, during the connection process between the front end 110 and the hose 200, the smoothness of the connection between the front end 110 and the hose 200 can also be ensured. Moreover, the design of the rear connection ring 100 in this application, compared with directly adding a clamp outside in the related art, reduces the sense of step in the pipe body fitting and avoids causing discomfort to the human body.

[0036] Specifically, the array arrangement form of the anti - detachment protrusions 111 can be a rectangular array arrangement or a staggered array arrangement.

[0037] Preferably, the inclination angle a is greater than 135° and less than 165°, such as 142°, 150°, 151° or 160°, etc. This design can quickly realize the fitting between the hose 200 and the front end 110, and at the same time effectively prevent the hose 200 from detaching from the front end 110.

[0038] Specifically, as Figure 3 shown, the anti - detachment protrusion 111 is in a sharp - corner shape, with the sharp corner facing the rear end 120. This design can make the anti - detachment protrusion 111 embed into the hose 200 and increase the tightness between the anti - detachment protrusion 111 and the hose 200.

[0039] More specifically, as Figure 3 shown, the anti - detachment protrusion 111 is a sheet - like structure. A cut groove 1110 is formed on the inner side of the anti - detachment protrusion 111 at the rear end 120. The anti - detachment protrusion 111 is formed by bending the pipe wall of the front end 110 outwards. The optional manufacturing method of this structure is: after laser - cutting a steel pipe, the steel pipe is flared to form a structure similar to fish scales. The manufacturing process is simple and the cost is low. Adopting this structure can also make the bending angle of the anti - detachment protrusion 111 more controllable.

[0040] Preferably, as Figure 2 shown, the front end 110 and the rear end 120 have the same diameter. In the related art, the front end 110 and the rear end 120 are generally in a stepped shape to make up for the difference between the hose 200 and the snake bone sleeve 310. However, due to the flexible setting of the anti - detachment protrusions 111 in this application, the height of the anti - detachment protrusions 111 can be changed by adjusting the outward - folding angle of the anti - detachment protrusions 111. Therefore, the front end 110 and the rear end 120 of this application do not need to form a stepped structure, further reducing the processing procedures.

[0041] Specifically, if Figure 1 As shown, the outer side wall of the hose 200 is aligned with the outer side wall of the snake sleeve 310 .

[0042] The hose 200 comprises three layers, which are an outer layer, a middle layer and an inner layer from the outside to the inside. The outer layer and the inner layer are made of nylon, and the inner layer is a stainless steel braided layer. The anti-slip protrusion 111 is embedded in the inner layer. This structure can ensure the strength of the hose 200 and prevent the hose 200 from being cut by the anti-slip protrusion 111 in some cases.

[0043] Preferably, Figure 4 , 5 As shown, a notch 112 is formed at the front end portion, and the notch 112 extends from the end surface of the front end portion 110 toward the rear end portion 120 . The notch 112 avoids the anti-slip protrusion 111 , and a capillary 400 is welded in the notch, reserving more avoidance space for the steel wire rope in the capillary 400 .

[0044] In order to further ensure the connection stability of the endoscope, the end of the hose 200 that abuts against the snake-bone sleeve 310 is connected to the snake-bone sleeve 310 through a heat shrink tube. The use of a heat shrink tube can further avoid the discomfort caused to the user due to the height difference between the components.

[0045] In this application, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, 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 endoscope adapter, which is tubular, is characterized in that include: A front end portion for inserting a hose; The rear end is used for welding the snake bone; Among them, a plurality of anti-slip protrusions are arranged in an array along the axial surface of the front end portion, and the anti-slip protrusions are inclined toward the rear end portion, and the inclination angle a is greater than 120°.

2. The endoscope rear connection ring according to claim 1, characterized in that: The inclination angle a is greater than 135° and less than 165°.

3. The endoscope rear connection ring according to claim 1, characterized in that: The anti-slip protrusion is in a pointed shape, and the pointed corner faces the rear end portion.

4. The endoscope rear connection ring according to claim 3, characterized in that: The anti-slip protrusion is a sheet-like structure, the rear end portion is formed with a groove inside the anti-slip protrusion, and the anti-slip protrusion is formed by bending the tube wall of the front end portion outward.

5. An endoscope rear connection ring according to any one of claims 1 to 4, characterized in that: The front end portion and the rear end portion have equal diameters.

6. An endoscope, characterized in that: It comprises a snake bone, a snake bone sleeve, a hose and any one of the endoscope rear connecting rings of claims 1 to 5; The front end portion is covered with glue and inserted into the hose; the snake bone is welded to the rear end portion, and the snake bone sleeve is sleeved onto the outside of the snake bone; the hose and the snake bone sleeve are pressed against each other.

7. An endoscope according to claim 6, characterized in that: The hose comprises three layers, which are an outer layer, a middle layer and an inner layer from the outside to the inside. The outer layer and the inner layer are made of nylon, the inner layer is a stainless steel braided layer, and the anti-slip protrusion is embedded in the inner layer.

8. An endoscope according to claim 6, characterized in that: The front end portion is formed with a notch, the notch extends from the end surface of the front end portion toward the rear end portion, the notch avoids the anti-slip protrusion, and a capillary is welded in the notch.

9. An endoscope according to claim 8, characterized in that: The outer side wall of the hose is aligned with the outer side wall of the snake sleeve.

10. An endoscope according to claim 9, characterized in that: One end of the hose abutting against the snake-bone sleeve is connected to the snake-bone sleeve through a heat shrink tube.

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