CN220089435U - Skeleton texture and endoscope of endoscope - Google Patents

Abstract

The utility model relates to a skeleton structure of an endoscope and the endoscope, which comprises a first pipe body and a second pipe body, wherein one of the first pipe body and the second pipe body is a snake bone component, the other is an end pipe or an insertion pipe, a clamping groove is arranged on the peripheral wall of the first pipe body, the clamping groove penetrates through the end wall of the first pipe body, the end part of the second pipe body is at least a clamping block with the shape matched with the clamping groove, and the clamping block is clamped into the clamping groove along the axial direction of the first pipe body. The smoothness of the outer wall surface of the joint of the first tube body and the second tube body is better than that of the prior art, and the discomfort caused by the endoscope entering the human body is smaller than that of the prior art.

Description

Skeleton texture and endoscope of endoscope

Technical Field

The utility model relates to the field of endoscopes, in particular to a skeleton structure of an endoscope and the endoscope.

Background

The endoscope main body consists of three parts, namely an insertion tube, a snake bone component and an end tube, wherein the insertion tube and the end tube are respectively positioned at two ends of the snake bone component. The insertion tube enables the endoscope to have enough insertion depth in a human body, and the snake bone component adjusts the position of the end tube in a bending mode, so that the end tube can reach a focus position for observation or minimally invasive surgery.

At present, the insertion tube and the end tube are mainly mounted to the end tube in a glue adhesion mode, so that in order to ensure the connection strength, glue is often used excessively, a bulge is formed at the outer wall surface of the end part of the snake bone component after the glue is dried, the bulge is touched with a human body in the process that a subsequent endoscope enters the human body, and discomfort of the human body is easily increased. In order to reduce the formation of the protrusions and ensure the connection strength of the insertion tube and the end tube, the use amount of the glue is very precise and extremely depends on the experience of an assembler.

Disclosure of Invention

Accordingly, it is necessary to provide a skeleton structure of an endoscope and an endoscope, which are aimed at the problem that the outer wall surface of the endoscope is liable to be raised during the assembly process.

The utility model provides a skeleton texture of endoscope, includes first body and second body, first body with one of second body is snake bone subassembly, and another is end pipe or inserted tube, be provided with the draw-in groove on the periphery wall of first body, the draw-in groove link up to the end wall of first body, the tip of second body at least part be with draw-in groove shape assorted fixture block, the fixture block is followed the axial joint of first body extremely in the draw-in groove.

The first pipe body is a snake bone component, two second pipe bodies are respectively positioned at two ends of the first pipe body, the two second pipe bodies are respectively the end head pipe and the insertion pipe, the skeleton structure further comprises a functional pipe penetrating through the middle of the snake bone component, the functional pipe penetrates through the middle of the snake bone component, so that one end of the functional pipe is positioned in the insertion pipe or the snake bone component, and the other end of the functional pipe is positioned on the end face of the end head pipe, which is far away from the snake bone component.

The clamping block of the end pipe is formed by protruding the end face of the end pipe outwards along the axial direction of the end pipe, so that a gap is reserved between the end face of the end pipe and the end face of the snake bone component, and the clamping block of the end pipe is rotatably arranged in the clamping groove.

The snake bone component is internally provided with a traction channel for penetrating a traction rope, and the end tube is provided with a fixing hole or a fixing groove for fixing the end part of the traction rope.

According to the utility model, the end wall of the insertion tube is abutted against the inner wall of the clamping groove, so that the joint of the insertion tube and the snake bone component is sealed.

The clamping groove in butt fit with the insertion tube is an annular groove.

An endoscope includes a skeletal structure.

The endoscope further comprises a traction rope, wherein the traction rope penetrates through the snake bone component, if the second pipe body is an end pipe, a gap is reserved between the end face of the end pipe and the end face of the snake bone component, the clamping block of the end pipe is rotatably arranged in the clamping groove, and one end of the traction rope is fixedly arranged on the end pipe.

The utility model discloses a snake bone component, which is internally provided with a traction channel, wherein the endoscope further comprises a traction rope, and if a second pipe body is an insertion pipe, the endoscope further comprises a guide pipe positioned in the insertion pipe, and the traction rope is penetrated into the traction channel through the guide pipe.

The first pipe body is a snake bone component, the two second pipe bodies are respectively positioned at two ends of the first pipe body, the two second pipe bodies are respectively the end head pipe and the insertion pipe, and the endoscope also comprises a flexible sheath which is coated on the outer wall of the framework structure and extends from one end of the framework structure to the other end of the framework structure.

The beneficial effects of the utility model are as follows:

the first pipe body and the second pipe body are connected in a clamping mode, enough connection strength is provided for the first pipe body and the second pipe body, the use of glue is avoided, and the phenomenon that the glue forms a bulge after the outer wall of the end part of the snake bone component is dried is avoided. The experience requirement of the assembly personnel is low, as long as the first pipe body and the second pipe body are stable in molding quality, after the clamping blocks are clamped in the clamping grooves, the connecting positions of the first pipe body and the second pipe body are difficult to form steps, or only small steps can be generated, the smoothness of the outer wall surfaces of the connecting positions of the first pipe body and the second pipe body is better than that of the prior art, and the discomfort caused by the fact that the endoscope enters a human body is smaller than that of the prior art.

The clamping groove is communicated with the end wall of the first pipe body, the clamping block is axially clamped into the clamping groove along the first pipe body, and the acting force of the clamping block on the inner wall of the clamping groove in the bending process of the snake bone component is mainly along the radial direction and the circumferential direction of the first pipe body, so that the influence of the snake bone component on the clamping stability of the clamping block in the bending process is small, and the safety of the endoscope in the use process is ensured.

Drawings

FIG. 1 is a schematic perspective view of an endoscope according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view (natural state) of a skeleton structure according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view (curved state) of a skeleton structure according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of an exploded structure of a framework structure according to an embodiment of the present utility model;

FIG. 5 is a diagram of an embodiment of the tip tube and snake bone assembly process according to the utility model;

FIG. 6 is an enlarged view in partial cross-section of an endoscope according to an embodiment of the present utility model;

fig. 7 is an enlarged partial cross-sectional view of an endoscope according to an embodiment of the present utility model.

Reference numerals:

1. the device comprises a framework structure, 11, a head pipe, 12, a snake bone component, 121, a clamping groove, 1211, a clamping block, 13, an insertion pipe, 131, a guide pipe, 2, a flexible sheath, 3, a traction rope, 31, a traction channel, 4, a functional pipe, 41, a wiring pipe, 42 and a forceps channel pipe.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

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

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" 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 are used herein for illustrative purposes only and are not meant to be the only embodiment.

Examples:

referring to fig. 1 to 7, the present embodiment provides an endoscope including a skeleton structure 1, a flexible sheath 2, a functional tube 4, a guide tube 131, and a pulling cord 3.

The skeleton structure 1 comprises at least a first tube and a second tube. If the first tube body is the snake bone component 12, the second tube body is the end tube 11 or the insertion tube 13, for example, in the case of two second tube bodies in this embodiment, the two second tube bodies are the end tube 11 and the insertion tube 13, and the end tube 11 and the insertion tube 13 are connected with two ends of the snake bone component 12 respectively.

In other embodiments, if the second tube is a snake bone module 12, the first tube is a tip tube 11 or an insertion tube 13, where there are typically two first tubes, respectively a tip tube 11 and an insertion tube 13, and the tip tube 11 and the insertion tube 13 are connected to two ends of the snake bone module 12. This scheme is an equivalent scheme of the present embodiment, and will not be described in detail in the present embodiment.

The first tube, i.e. the snake bone component 12 in this embodiment, is provided with a clamping groove 121 on its outer peripheral wall, and the clamping groove 121 penetrates to the end wall of the first tube. In order to achieve the connection with the tip tube 11 and the insertion tube 13, respectively, both ends of the snake bone module 12 are provided with clamping grooves 121. The clamping groove 121 at the front end of the snake bone component 12 penetrates through to the end wall at the front end of the snake bone component 12, and the clamping groove 121 at the rear end of the snake bone component 12 penetrates through to the end wall at the rear end of the snake bone component 12.

Wherein the front end of the snake bone component 12 is connected with the rear end of the tip tube 11, and the rear end of the snake bone component 12 is connected with the front end of the insertion tube 13.

The rear end of the end pipe 11 and the front end of the insertion pipe 13 are at least partially clamping blocks 1211 matched with the clamping grooves 121 in shape, and the clamping blocks 1211 are clamped into the corresponding clamping grooves 121 along the axial direction of the first pipe body.

Taking the insertion tube 13 as an example, the front end of the insertion tube 13 is connected with the rear end of the snake bone component 12 in a clamping manner (the clamping groove 121 is matched with the clamping block 1211), so that sufficient connection strength is provided for the insertion tube 13 and the snake bone component 12, the use of glue is avoided, and no protrusion is formed after the glue is dried at the outer wall of the end part of the snake bone component 12. In addition, the experience requirements of the assembly personnel are low, as long as the molding quality of the insertion tube 13 and the snake bone component 12 is stable, after the clamping block 1211 is clamped in the clamping groove 121, the joint of the snake bone component 12 and the insertion tube 13 is not easy to form a step, or only a small step is generated, and the smoothness of the outer wall surface of the joint of the snake bone component 12 and the insertion tube 13 is better than that of the prior art.

The clamping groove 121 penetrates through the end wall of the snake bone component 12, so that the clamping block 1211 is axially clamped into the clamping groove 121 along the insertion tube 13, and the acting force of the clamping block 1211 on the inner wall of the clamping groove 121 in the bending process of the snake bone component 12 is mainly along the radial direction and the circumferential direction of the insertion tube 13, so that the clamping stability of the clamping block 1211 in the bending process of the snake bone component 12 is less influenced, and the safety of the endoscope in the use process is ensured.

Similarly, the rear end of the end tube 11 and the front end of the snake bone component 12 are clamped, so that similar technical effects can be achieved, and the embodiment is not repeated.

The flexible sheath 2 is coated on the outer wall of the framework structure 1, preferably, the flexible sheath 2 extends from one end of the framework structure 1 to the other end, so that the outer wall surface of the endoscope at two ends of the snake bone component 12 is smoother, and meanwhile, the direct contact between the snake bone component 12 and a human body is avoided, and the discomfort caused by the contact between the endoscope and the human body after the endoscope enters the human body is effectively reduced.

In this embodiment, the clamping groove 121 at the rear end of the snake bone component 12 is an annular groove, and the front end of the insertion tube 13 integrally forms a clamping block 1211 corresponding to the annular groove, so that after the front end of the insertion tube 13 is clamped to the rear end of the snake bone component 12, the rear end of the snake bone component 12 is positioned in the front end of the insertion tube 13, and the end wall of the insertion tube 13 is abutted against the inner wall of the annular groove along the axial direction of the insertion tube, so that the joint of the snake bone component 12 and the insertion tube 13 realizes a sealing effect, and minimally invasive surgical instruments and circuits inside the endoscope are protected. The annular groove also allows the insertion tube 13 to rotate on the snake bone component 12 around the axis thereof, thereby increasing the movable range of the snake bone component 12 on the insertion tube 13 and facilitating the delivery of the end tube 11 to the focus for minimally invasive surgery and observation.

The block 1211 of the header tube 11 of the present embodiment is formed by protruding a part of the rear end surface of the header tube 11 rearward along the axial direction of the header tube 11, so the block 1211 of the header tube 11 is a part of the rear end of the header tube 11. After the clamping blocks 1211 of the end tube 11 are clamped into the clamping grooves 121 at the front end of the snake bone component 12, a gap is reserved between the rear end face of the end tube 11 and the front end face of the snake bone component 12, and the corresponding end tube 11 is provided with a movable allowance at the front end of the snake bone component 12. Based on the bending, the clamping groove 121 at the front end of the snake bone component 12 is arc-shaped to allow the clamping block 1211 of the end head pipe 11 to rotate in the clamping groove 121 at the front end of the snake bone component 12, so that the moving range of the end head pipe 11 is further increased on the basis that the snake bone component 12 bends, and the end head pipe 11 can reach a focus position more conveniently.

The shape of the clamping block 1211 of the end pipe 11 and the shape of the clamping groove 121 at the front end of the snake bone component 12 can be designed by a person skilled in the art according to actual needs, and only the clamping block 1211 of the end pipe 11 is required to be capable of rotating without easily falling out of the clamping groove 121 at the front end of the snake bone component 12. The snake bone component 12 is made of plastic material, so that the inner wall of the clamping groove 121 has a certain elasticity slightly, so that the clamping block 1211 can not be easily separated after being clamped into the clamping groove 121 by manual assembly.

The snake bone component 12 is internally provided with a traction channel 31, the traction rope 3 is arranged in the middle of the traction channel 31 in a penetrating way, the rear end of the insertion tube 13 is connected with a control handle, the rear end of the traction rope 3 is connected with the control handle, the control handle is operated to control the traction rope 3, and the snake bone component 12 is driven to bend.

Because the end tube 11 in this embodiment can rotate at the front end of the snake bone component 12, in this embodiment, a fixing hole or a fixing groove is provided on the end tube 11, and the fixing hole or the fixing groove fixes the front end of the pulling rope 3, so that the front end of the pulling rope 3 is fixed on the end tube 11. Therefore, when the control handle controls the traction rope 3, the bending of the snake bone component 12 and the rotation of the end tube 11 at the front end of the snake bone component 12 can be simultaneously realized, so that the operation flow of the control handle is prevented from being complicated.

The guide tube 131 is positioned in the insertion tube 13, and the pulling rope 3 enters the guide tube 131 from the rear end of the insertion tube 13 and then enters the pulling channel 31 from the front end of the guide tube 131. The cross-sectional dimension of the pulling channel 31 is only slightly larger than the diameter of the pulling rope 3, so that the pulling channel 31 has a guiding effect on the movement of the pulling rope 3, and the part of the pulling rope 3 in the pulling channel 31 is not easy to knot. Since the inner diameter of the insertion tube 13 is much larger than the diameter of the pulling string 3, the inner diameter of the guide tube 131 is set to be only slightly larger than the diameter of the pulling string 3 to perform a similar function to the pulling passage 31, and perform a movement guiding and knot preventing function for the pulling string 3. The guide tube 131 and the pulling channel 31 are matched, so that the pulling rope 3 is in a tensioning state, and the idle stroke distance of the control handle on the pulling rope 3 is reduced.

The functional tube 4 is arranged in the middle of the snake bone component 12 in a penetrating way, the rear end of the functional tube 4 is positioned in the insertion tube 13 or the snake bone component 12, and the other end is positioned on the end face of the end tube 11 away from the snake bone component 12. The snake bone component 12 drives the functional tube 4 to bend together when bending, and the deformation of the functional tube 4 is controlled by the snake bone component 12, so that the deformation of the functional tube 4 is consistent with the deformation of the snake bone component 12. For example, in this embodiment, there are two functional tubes 4, namely, a wire tube 41 and a forceps tube 42, where the wire tube 41 is used for wire routing, the wire is connected to the camera module at the front end face of the tip tube 11, and the forceps tube 42 is used for the minimally invasive surgical instrument to reach the front end face of the tip tube 11 for performing the surgical operation. The forceps channel tube 42 is supported by the snake bone assembly 12, and deformation thereof is limited by the degree of bending of the snake bone assembly 12, thereby facilitating movement of the surgical instrument within the forceps channel tube 42.

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

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a skeleton texture of endoscope, includes first body and second body, first body with one of second body is snake bone subassembly, and another is end pipe or inserted tube, its characterized in that is provided with the draw-in groove on the periphery wall of first body, the draw-in groove link up to the end wall of first body, the tip of second body at least part be with draw-in groove shape assorted fixture block, the fixture block is followed the axial joint of first body is extremely in the draw-in groove.

2. The endoscope framework structure of claim 1, wherein the first tube body is a snake bone component, the second tube bodies are two and are respectively positioned at two ends of the first tube body, the two second tube bodies are respectively the end head tube and the insertion tube, the framework structure further comprises a functional tube penetrating through the middle of the snake bone component, and the functional tube penetrates through the middle of the snake bone component, so that one end of the functional tube is positioned in the insertion tube or the snake bone component, and the other end of the functional tube is positioned on the end face of the end head tube, which is far away from the snake bone component.

3. The skeleton structure of claim 2, wherein the block of the tip tube is formed by protruding an end surface of the tip tube in an axial direction of the tip tube so that a gap is left between the end surface of the tip tube and an end surface of the snake bone component, and the block of the tip tube is rotatably disposed in the block groove.

4. A skeleton structure of an endoscope according to claim 3, wherein a pulling passage for penetrating a pulling rope is provided in the snake bone component, and a fixing hole or a fixing groove for fixing an end of the pulling rope is provided on the tip tube.

5. The endoscope skeletal structure of claim 2, wherein an end wall of the insertion tube abuts against an inner wall of the clip groove to seal a junction of the insertion tube and the snake bone module.

6. The endoscope skeletal structure of claim 5, wherein said clip groove in abutting engagement with said insertion tube is an annular groove.

7. An endoscope comprising the skeletal structure of any one of claims 1-6.

8. The endoscope of claim 7, further comprising a pulling rope, wherein the pulling rope is arranged in the snake bone component in a penetrating manner, if the second pipe body is an end pipe, a gap is reserved between the end face of the end pipe and the end face of the snake bone component, the clamping block of the end pipe is rotatably arranged in the clamping groove, and one end of the pulling rope is fixedly arranged on the end pipe.

9. The endoscope of claim 7, wherein a pulling channel is provided in the snake bone assembly, the endoscope further comprising a pulling cord, and if the second tube is an insertion tube, the endoscope further comprises a guide tube positioned in the insertion tube, the pulling cord being threaded to the pulling channel via the guide tube.

10. The endoscope of claim 7, wherein the first tube is a snake bone assembly, the second tubes are two and are respectively positioned at two ends of the first tube, the two second tubes are respectively the tip tube and the insertion tube, and the endoscope further comprises a flexible sheath which is coated on the outer wall of the framework structure and extends from one end of the framework structure to the other end.