Endoscope

Abstract

The utility model relates to an endoscope. The endoscope comprises a snake bone, wherein a tubular sleeving part is arranged at the end part of the snake bone; the tip part comprises a shell and a connecting piece connected to the shell, the connecting piece comprises a tubular main body part and a first inserting part connected to one end of the main body part, the outer diameter of the main body part is equal to the outer diameter of the sleeving part, and the first inserting part is inserted into the sleeving part; wherein at least one buckling protrusion is arranged on the outer surface of the first inserting part, buckling position holes are formed in the positions, corresponding to the buckling protrusions, of the sleeving part, and the buckling protrusions are clamped into the corresponding buckling position holes. According to the endoscope, the connection reliability of the tip part and the snake bone is high, and the tip part and the snake bone are not prone to falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an endoscope. Background Art

[0002] Clinically, using an endoscope for examination and treatment is currently the most commonly used minimally invasive diagnosis and treatment method. The medical endoscope only needs to utilize the natural orifice of the human body or make a small hole when necessary to reach the designated position, and this method causes less damage to the patient. The endoscope generally includes a distal end portion, a bending portion, an insertion portion, and a control assembly connected in sequence. In order to realize the bending of the distal end portion of the endoscope, it is necessary to connect the distal end portion to the snake bone of the bending portion. The traditional connection method between the distal end portion and the snake bone of the endoscope is to directly sleeve the distal end portion on the outer circle of the snake bone and then bond it with an adhesive. Although this connection method can shorten the length of the connection part, there will be an obvious height difference at the transition position between the distal end portion and the snake bone after sleeving, which also increases the difficulty of inserting the endoscope into the human body, and the connection reliability of this connection method is also poor, and the distal end portion and the snake bone are likely to fall off during use. Summary of the Utility Model

[0003] Based on this, it is necessary to provide an endoscope with high connection reliability between the distal end portion and the snake bone and not easily falling off.

[0004] An embodiment of the present application provides an endoscope, including:

[0005] A snake bone, and a tubular socket portion is provided at the end of the snake bone;

[0006] A distal end portion, including a housing and a connecting member connected to the housing. The connecting member includes a tubular main body portion and a first insertion portion connected to one end of the main body portion. The outer diameter of the main body portion is equal to the outer diameter of the socket portion, and the first insertion portion is inserted into the socket portion;

[0007] Wherein, at least one snap protrusion is provided on the outer surface of the first insertion portion, and a snap hole is provided at the position of the socket portion corresponding to the snap protrusion, and each snap protrusion is snapped into the corresponding snap hole.

[0008] In one embodiment, the first insertion portion is configured as a tubular member, and the outer surface of the first insertion portion is attached to the inner wall of the socket portion.

[0009] In one embodiment, an avoidance notch is provided on the first insertion portion, and the avoidance notch extends to the end surface of the first insertion portion facing the snake bone.

[0010] In one embodiment, the number of snap protrusions is two, and the two snap protrusions are oppositely arranged along the radial direction of the first insertion portion and are located on different sides of the avoidance notch.

[0011] In one of the embodiments, at least a portion of the surface of the top end of the snap protrusion is formed as a guiding slope so that the protrusion height of the snap protrusion gradually decreases along a first direction, and the first direction is the direction from the top end to the snake bone.

[0012] In one of the embodiments, an adhesive is provided between the buckle protrusion and the corresponding buckle hole.

[0013] In one embodiment, a limiting portion is provided at the end of the main body connected to the first plug-in portion;

[0014] A matching groove is provided at the end of the sleeve portion at a position corresponding to the limiting portion, and the limiting portion is inserted into the matching groove to limit the relative rotation of the first plug-in portion and the sleeve portion.

[0015] In one embodiment, a limiting portion is provided at the end of the main body connected to the first plug-in portion; a matching groove is provided at the end of the sleeve portion corresponding to the position of the limiting portion, and the limiting portion is inserted into the matching groove to limit the relative rotation of the first plug-in portion and the sleeve portion; a clearance gap is provided on the first plug-in portion, and the clearance gap extends to the end surface of the first plug-in portion facing the snake bone;

[0016] The limiting portion is arranged at a position corresponding to the clearance gap.

[0017] In one of the embodiments, the limiting portion is constructed as a structure extending from the main body toward the snake bone; the matching groove penetrates the sleeve portion along the thickness direction of the sleeve portion.

[0018] In one embodiment, the connector further comprises a second plug-in portion disposed on the main body, the second plug-in portion being located on a side of the main body away from the first plug-in portion;

[0019] The second plug-in portion is plug-fitted with the housing.

[0020] The second plug-in portion may be constructed as a tubular member, and the outer diameter of the main body may be equal to the outer diameter of the shell, so that a smooth transition is also achieved at the interface between the connector and the shell.

[0021] Beneficial effects of the above endoscope:

[0022] Since the first plugging part is inserted into the socket part, at least one buckle protrusion is provided on the outer surface of the first plugging part, and a buckle hole is provided at the position of the socket part corresponding to the buckle protrusion. Each buckle protrusion is snapped into the corresponding buckle hole. In this way, the first plugging part and the socket part can be buckled and matched through the snap connection of the buckle protrusion and the buckle hole. When there is a tendency for the connecting piece and the snake bone in the front end part to separate from each other, the outer wall of the buckle protrusion is blocked by the inner wall of the buckle hole, which can prevent separation. Further, since the separation direction of the buckle protrusion and the buckle hole has an included angle with the separation direction of the connecting piece and the snake bone, it makes it more difficult for the connecting piece and the snake bone to separate. In addition, compared with the adhesive connection in the prior art, the reliability of this mechanical connection method is also improved, and the connection between the front end part and the snake bone is not easily detached. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the endoscope provided by the embodiment of the present application;

[0024] Figure 2 It is a schematic structural diagram of the connection structure between the connecting piece and the snake bone in the endoscope provided by the embodiment of the present application.

[0025] Explanation of the reference numerals in the drawings:

[0026] 100, endoscope;

[0027] 10, snake bone; 20, socket part; 21, buckle hole; 22, fitting groove; 30, front end part; 40, housing; 50, connecting piece; 60, main body part; 601, limiting part; 61, first plugging part; 611, buckle protrusion; 6111, guiding inclined surface; 612, clearance notch; 62, second plugging part. Detailed Embodiments

[0028] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0031] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0033] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0034] The endoscope according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0035] Figure 1 It is a schematic structural diagram of the endoscope provided by the embodiment of the present application. Figure 2 It is a schematic connection structure diagram of the connecting member and the snake bone in the endoscope provided by the embodiment of the present application.

[0036] Refer to Figure 1 、 Figure 2 According to an embodiment of the present application, an endoscope 100 is provided, which includes a snake bone 10 and a distal end portion 30.

[0037] A tubular socket portion 20 is provided at the end of the snake bone 10. The distal end portion 30 includes a housing 40 and a connecting member 50 connected to the housing 40. The connecting member 50 includes a tubular main body portion 60 and a first insertion portion 61 connected to one end of the main body portion 60. The outer diameter of the main body portion 60 is equal to the outer diameter of the socket portion 20, and the first insertion portion 61 is inserted into the socket portion 20.

[0038] Wherein, at least one snap protrusion 611 is provided on the outer surface of the first insertion portion 61, and a snap hole 21 is provided at the position of the socket portion 20 corresponding to the snap protrusion 611, and each snap protrusion 611 is snapped into the corresponding snap hole 21.

[0039] Since the first insertion portion 61 is inserted into the socket portion 20, at least one snap protrusion 611 is provided on the outer surface of the first insertion portion 61, a snap hole 21 is provided at the position of the socket portion 20 corresponding to the snap protrusion 611, and each snap protrusion 611 is snapped into the corresponding snap hole 21. In this way, the first insertion portion 61 and the socket portion 20 can be snap-fitted through the snap connection between the snap protrusion 611 and the snap hole 21. When there is a tendency for the connecting member 50 and the snake bone 10 in the distal end portion 30 to separate from each other, the outer wall of the snap protrusion 611 is blocked by the inner wall of the snap hole 21, and separation can be avoided. Further, since the separation direction of the snap protrusion 611 and the snap hole 21 has an included angle with the separation direction of the connecting member 50 and the snake bone 10, the connecting member 50 and the snake bone 10 are less likely to separate. In addition, compared with the adhesive connection in the prior art, the reliability of this mechanical connection method is also improved, and the connection between the distal end portion 30 and the snake bone 10 is not likely to fall off.

[0040] Further, the outer diameter of the main body portion 60 is equal to the outer diameter of the socket portion 20. Therefore, when the first plugging portion 61 is inserted into the socket portion 20, the transition at the junction of the main body portion 60 and the socket portion 20 is smooth without a height difference, which is more conducive to inserting the endoscope 100 into the human body.

[0041] In the embodiment of the present application, the first plugging portion 61 is configured as a tubular member, and the outer surface of the first plugging portion 61 is attached to the inner wall of the socket portion 20. With such a setting, the first plugging portion 61 and the socket portion 20 are in close contact without gaps, which can further improve the connection reliability between the two. Specifically, the outer diameter of the first plugging portion 61 may be exactly equal to or approximately equal to the inner diameter of the socket portion 20.

[0042] In the embodiment of the present application, a clearance notch 612 is provided on the first plugging portion 61, and the clearance notch 612 extends to the end face of the first plugging portion 61 facing the snake bone 10.

[0043] By providing the clearance notch 612, during the process of inserting the first plugging portion 61 into the socket portion 20, the position of the snap projection 611 on the first plugging portion 61 can elastically deform slightly towards the radial inner side, facilitating the smooth insertion of the first plugging portion 61 into the socket portion 20. When the snap projection 611 moves to the position corresponding to the snap hole 21, the elastic deformation is restored, and the snap projection 611 snaps into the corresponding snap hole 21, realizing the snap connection between the first plugging portion 61 and the socket portion 20, which is convenient for assembly. The form of the clearance notch 612 can be a rectangular notch as shown in the figure, or can be set as needed, as long as it can make the part where the snap projection 611 is located elastically deform. Of course, the first plugging portion 61 can be made of a material with a certain elastic deformation ability.

[0044] In the embodiment of the present application, the number of snap projections 611 is two, and the two snap projections 611 are disposed opposite to each other along the radial direction of the first plugging portion 61 and are located on different sides of the clearance notch 612.

[0045] With such a setting, the provision of one clearance notch 612 can allow the positions of the two first plugging portions 61 to elastically deform towards the radial inner side.

[0046] In the embodiment of the present application, at least a part of the top surface of the snap projection 611 is formed as a guiding inclined surface 6111, so that the protruding height of the snap projection 611 gradually decreases along the first direction F, and the first direction F is the direction from the distal end portion 30 towards the snake bone 10.

[0047] With such arrangement, during the process of inserting the first plug-in part into the socket part 20, after the snap-in protrusion 611 just contacts the end of the socket part 20, the guide bevel 6111 also contacts the socket part 20. As the insertion continues, the guide bevel 6111 contacts the socket part 20 in a sliding manner, making the insertion process more stable and easier to insert.

[0048] In the embodiment of the present application, an adhesive is provided between the buckle protrusion 611 and the corresponding buckle hole 21 .

[0049] Such an arrangement can further improve the connection strength between the first plug-in portion 61 and the sleeve portion 20 .

[0050] In the present application, continue to refer to Figure 1 and Figure 2 The end of the main body 60 connected to the first plug part 61 is provided with a limiter 601. The end of the sleeve part 20 is provided with a matching groove 22 corresponding to the position of the limiter 601, and the limiter 601 is inserted into the matching groove 22 to limit the relative rotation of the first plug part 61 and the sleeve part 20.

[0051] Through the mutual cooperation between the limiting portion 601 and the matching groove 22, the anti-rotation effect of the tip portion 30 and the snake bone 10 can be achieved.

[0052] In the embodiment of the present application, as mentioned above, the first plug-in portion 61 is provided with a clearance gap 612, and when the clearance gap 612 extends to the end surface of the first plug-in portion 61 facing the snake bone 10, the limiting portion 601 is arranged at a position corresponding to the clearance gap 612. For example, the limiting portion 601 is arranged on the radially outer side of the clearance gap 612 along the first plug-in portion 61. Such an arrangement is convenient for installation and processing.

[0053] In the embodiment of the present application, the limiting portion 601 is configured as a structure extending from the main body 60 toward the snake bone 10. For example, it can be a sheet-like structure with a curved profile. The matching groove 22 penetrates the sleeve portion 20 along the thickness direction of the sleeve portion 20.

[0054] In this way, the anti-rotation effect of the tip portion 30 and the snake bone 10 can be reliably achieved when the thickness of the sleeve portion 20 is relatively small.

[0055] In the embodiment of the present application, the connector 50 further includes a second plug-in portion 62 disposed on the main body 60, and the second plug-in portion 62 is located on a side of the main body 60 that is away from the first plug-in portion 61. The second plug-in portion 62 is plugged and matched with the housing 40. For example, the second plug-in portion 62 can be inserted into the housing 40. The outer contour of the second plug-in portion 62 can match the inner contour of the housing 40, so that when the second plug-in portion 62 is inserted into the housing 40, there is no gap between the second plug-in portion 62 and the housing 40.

[0056] The second insertion part 62 can be configured as a tubular member. Specifically, in implementation, the outer diameter of the main body part 60 can be equal to the outer diameter of the housing 40. In this way, at the junction position of the connection between the connecting member 50 and the housing 40, there is also a smooth transition.

[0057] The following will describe Figure 1 the connection process of the tip part 30 and the snake bone 10 of the present application.

[0058] First, with the limiting part 601 aligned with the fitting groove 22, insert the first insertion part 61 of the connecting member 50 into the inner side of the housing 40, and slightly press the first insertion part 61 near the clearance notch 612 radially inward so that the buckle protrusion 611 can contact the inner wall of the housing 40. In this state, continue to insert the first insertion part 61 inward. After the buckle protrusion 611 reaches the buckle hole 21, the buckle protrusion 611 pops up and enters the buckle hole 21, so that the buckle protrusion and the buckle hole 21 are clamped. Of course, glue can also be provided between the buckle protrusion 611 and the buckle hole 21 to assist in connecting the two.

[0059] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0060] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An endoscope, characterized in that, include: A snake bone, wherein the end of the snake bone is provided with a tubular sleeve portion; The tip portion includes a shell and a connector connected to the shell, the connector includes a tubular main body and a first plug-in portion connected to one end of the main body, the outer diameter of the main body is equal to the outer diameter of the sleeve portion, and the first plug-in portion is inserted into the sleeve portion; Wherein, at least one buckle protrusion is disposed on the outer surface of the first plug-in portion, and a buckle hole is disposed on the sleeve portion at a position corresponding to the buckle protrusion, and each buckle protrusion is snapped into the corresponding buckle hole.

2. The endoscope according to claim 1, characterized in that, The first plug-in portion is configured as a tubular member, and an outer surface of the first plug-in portion is attached to an inner wall of the sleeve portion.

3. The endoscope according to claim 2, characterized in that, The first plug-in portion is provided with a gap to avoid air flow, and the gap to avoid air flow extends to the end surface of the first plug-in portion facing the snake bone.

4. The endoscope according to claim 3, characterized in that, The number of the snap-in protrusions is two, and the two snap-in protrusions are arranged opposite to each other along the radial direction of the first plug-in portion and are located on different sides of the air-avoiding gap.

5. The endoscope according to any one of claims 1 to 4, characterized in that, At least part of the surface of the top end of the snap protrusion is formed as a guiding slope, so that the protrusion height of the snap protrusion gradually decreases along the first direction, and the first direction is the direction from the top end to the snake bone.

6. The endoscope according to any one of claims 1-4, characterized in that, Adhesive is provided between the buckle protrusion and the corresponding buckle hole.

7. The endoscope according to any one of claims 1 to 4, characterized in that, The end of the main body connected to the first plug-in portion is provided with a limiting portion; A matching groove is provided at the end of the sleeve portion at a position corresponding to the limiting portion, and the limiting portion is inserted into the matching groove to limit the relative rotation of the first plug-in portion and the sleeve portion.

8. The endoscope according to claim 7, characterized in that, The limiting portion is constructed as a structure extending from the main body toward the snake bone; the matching groove penetrates the sleeve portion along the thickness direction of the sleeve portion.

9. The endoscope according to any one of claims 1 - 2 and 4, characterized in that The end of the main body connected to the first plug-in portion is provided with a limiting portion; the end of the sleeve portion is provided with a matching groove corresponding to the position of the limiting portion, and the limiting portion is inserted into the matching groove to limit the relative rotation of the first plug-in portion and the sleeve portion; The first plug-in portion is provided with a gap for avoiding air, and the gap for avoiding air extends to the end surface of the first plug-in portion facing the snake bone; The limiting portion is arranged at a position corresponding to the clearance gap.

10. The endoscope according to any one of claims 1-4, characterized in that, The connector also includes a second plug-in portion disposed on the main body, the second plug-in portion being located on a side of the main body away from the first plug-in portion; The second plug-in portion is plug-fitted with the housing.

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