Handle structure of endoscope and endoscope

Abstract

The utility model relates to a handle structure of an endoscope and the endoscope. The handle structure of the endoscope comprises a shell, a winding piece and a control piece, a first connecting part is arranged on the winding piece, a second connecting part is arranged on the control piece, and the control piece and the winding piece are connected into a whole through connection of the first connecting part and the second connecting part, so that the winding piece can be driven to rotate relative to the shell through a main body part; and the front end of the endoscope is controlled to turn through the pull wire. The control piece and the winding piece are integrally connected through detachable connection of the first connecting part and the second connecting part, the connecting mode is simpler and more reliable, machining and assembling are more convenient, and the manufacturing cost is lower.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a handle structure of an endoscope and an endoscope. Background Art

[0002] With the development of medical technology, endoscopy has emerged. Endoscopes are used to visually inspect hard-to-reach locations such as internal organs to observe pathological conditions. Typically, an endoscope consists of a traction wire, a snake, and a handle. One end of the traction wire is connected to the handle, and the other end is connected to the snake. The handle's operating element pulls the traction wire, thereby controlling the snake to bend in different directions for easier observation.

[0003] In the related art, the matching processing of the handle operating member and the traction line is relatively complicated and the cost is high. Utility Model Content

[0004] Based on this, it is necessary to provide a handle structure for an endoscope to address the problem of poor reliability of existing handle operating parts.

[0005] A handle structure of an endoscope, comprising:

[0006] a housing, wherein the housing is configured with a receiving cavity;

[0007] A winding member, the winding member is rotatably disposed in the accommodating cavity; the winding member is provided with a first connecting portion;

[0008] The operating member includes a main body, one of the main body and the winding member is provided with a first connecting part, and the other is provided with a second connecting part for detachably connecting with the first connecting part, so that the main body can drive the winding member to rotate around its axis.

[0009] In one embodiment, the first connecting portion includes a first connecting block, and the first connecting block is configured with a mounting hole; the second connecting portion includes a mounting shaft extending along the axis, and the mounting shaft is snap-fitted with the mounting hole.

[0010] In one embodiment, the installation shaft is provided with an installation buckle on at least one side along its radial direction, and the installation buckle can overlap the end surface of the first overlapping block to limit the axial movement of the installation shaft.

[0011] In one embodiment, the installation shaft is provided with a limiting rib along at least one side of its radial direction, and the first overlap block is configured with a limiting groove for engaging with the limiting rib to limit the installation shaft from rotating around its own axis.

[0012] In one embodiment, the first connecting portion includes a first threaded hole, and the second connecting portion includes a first threaded member for threaded connection with the first threaded hole.

[0013] In one embodiment, one of the winding member and the housing is configured with a central hole, and the other is configured with a central shaft rotatably connected to the central hole.

[0014] In one embodiment, the winding member is constructed with a second connecting block, and the second connecting block is provided with the central hole; the housing is constructed with the central axis.

[0015] In one embodiment, a central buckle is provided on at least one side of the central axis along its radial direction, and the central buckle can overlap the end surface of the second overlapping block to limit the movement of the winding member along the central axis.

[0016] In one embodiment, the housing includes a rear shell, and the accommodating cavity is constructed in the rear shell;

[0017] The housing further comprises a front housing capable of covering the rear housing;

[0018] The handle structure further comprises a turn buckle for locking the front shell and the rear shell.

[0019] An endoscope comprises the endoscope handle structure described above.

[0020] The handle structure of the endoscope includes a housing, a winding member, and an operating member. A first connecting portion is provided on the winding member, and a second connecting portion is provided on the operating member. The operating member and the winding member are connected as one body through the connection of the first connecting portion and the second connecting portion. The winding member can then be driven by the main body to rotate relative to the housing, and the front end of the endoscope can be controlled to turn by the traction wire. The integrated connection of the operating member and the winding member is achieved by the detachable connection of the first connecting portion and the second connecting portion, which makes the connection method simpler and more reliable, more convenient to process and assemble, and lowers the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 An exploded schematic diagram of the handle structure of an endoscope provided in one embodiment of the present application.

[0022] Figure 2 for Figure 1 A schematic diagram of the winding part and the operating part in the handle structure of the endoscope is shown.

[0023] Figure numbers: 200, handle structure of endoscope; 210, shell; 211, rear shell; 2111, accommodating cavity; 2112, central axis; 2113, central buckle; 2114, perforation; 2115, hook; 212, front shell; 213, rotary buckle; 220, winding member; 221, first overlapping block; 2211, mounting hole; 2212, limiting groove; 222, second overlapping block; 2221, central hole; 230, operating member; 231, mounting axis; 232, mounting buckle; 233, limiting rib; 234, anti-slip pattern; 235, main body. DETAILED DESCRIPTION

[0024] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the 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 therefore cannot be understood as a limitation on this application.

[0026] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0027] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0028] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0030] In the prior art, operating components are typically made of aluminum alloy die-casting followed by a spray-coated surface treatment, or insert-molded using a metal frame. This process is complex and expensive. Therefore, the present application provides a handle structure that addresses the aforementioned issues. The following, combined with the accompanying drawings, provides a detailed description of the handle structure provided in one embodiment of the present application.

[0031] See Figure 1An endoscope handle structure 200 (hereinafter referred to as the handle structure) provided in one embodiment of the present application includes a housing 210, a winding member 220, and an operating member 230. The housing 210 is configured with a housing cavity 2111; the winding member 220 is rotatably disposed within the housing cavity 2111 and is provided with a first connecting portion; the operating member 230 includes a main body 235, one of which is provided with a first connecting portion, and the other is provided with a second connecting portion for detachably connecting to the first connecting portion, so that the main body 235 can drive the winding member 220 to rotate about its axis. It is understood that the housing 210 is configured with a through-hole 2114 for the operating member 230 to pass through, thereby enabling the first connecting portion and the second connecting portion to connect.

[0032] The handle structure 200 of the endoscope is provided with a first connecting portion on the winding member 220 and a second connecting portion on the operating member 230. The operating member 230 and the winding member 220 are connected as one body through the connection of the first connecting portion and the second connecting portion, and the winding member 220 can be driven to rotate relative to the housing 210 by the main body 235, and the front end of the endoscope can be controlled to turn by the traction line. The integral connection between the operating member 230 and the winding member 220 is achieved by the detachable connection of the first connecting portion and the second connecting portion. The connection method is simpler and more reliable, the assembly is more convenient, and the manufacturing cost is lower. Furthermore, the operating member 230 is made of plastic material. In this way, the process of spraying the surface after alloy die-casting can be eliminated, and the metal parts used as the skeleton in the insert molding and injection molding can also be eliminated, thereby simplifying the molding process and achieving the purpose of cost reduction.

[0033] like Figure 1 As shown, in some embodiments, the main body 235 can be an L-shaped rod-shaped structure, with a portion of the main body 235 exposed relative to the housing 210, so that the operator can easily drive the winding member 220 to rotate through the main body 235; the other portion of the main body 235 is located below the housing 210 and is provided with a second connecting portion to facilitate cooperation with the winding member 220. The winding member 220 can be a disc-shaped winding wheel with a traction line (not shown) wound around it. The axis of the winding member 220 is the central axis of the winding wheel; the axial direction mentioned herein is also the Figure 1 The up and down directions shown are radial directions, which are perpendicular to the axial direction, for example Figure 1 Left and right direction in .

[0034] like Figure 2As shown, in one embodiment, the main body 235 of the operating member 230 is provided with anti-slip grooves 234. Thus, when the operator grips the main body 235, the anti-slip grooves 234 can increase grip friction and prevent slipping. This facilitates the operator to rotate the operating member 230 around the housing 210 via the main body 235, reducing operational difficulty and improving operational reliability.

[0035] See Figure 1 and Figure 2 As shown, in one embodiment, the first connecting portion includes a first overlap block 221, and the first overlap block 221 is configured with a mounting hole 2211; the second connecting portion includes a mounting shaft 231 extending along the axis, and the mounting shaft 231 is snap-fitted with the mounting hole 2211. For example, in this embodiment, the winding member 220 is provided with a mounting hole 2211, and the operating member 230 is provided with a mounting shaft 231. Through the axial fit between the mounting shaft 231 and the mounting hole 2211, the winding member 220 and the operating member 230 are integrally connected. Of course, the setting positions of the mounting hole 2211 and the mounting shaft 231 can also be interchanged, that is, the winding member 220 is provided with a mounting shaft 231 protruding outward, and the operating member 230 is provided with a mounting hole 2211, and the mounting shaft 231 passes through the through-hole 2114 on the housing 210 and snap-fitted with the mounting shaft 231. Furthermore, in addition to extending in the axial direction, in other embodiments, the mounting hole 2211 and the mounting shaft 231 may also extend in the radial direction of the winding member (the radial direction is the direction perpendicular to the axial direction). In other words, the mounting shaft and the mounting hole extend from Figure 1 The upper and lower coordination shown can be changed to left and right coordination, so that the operating part can drive the winding part to rotate.

[0036] See Figure 1 and Figure 2 As shown, in one embodiment, the mounting shaft 231 is provided with a mounting buckle 232 on at least one side along its own radial direction, that is, the mounting buckle 232 extends radially outward relative to the mounting shaft 231 to form a lap edge. When the mounting shaft 231 is engaged with the mounting hole 2211, the mounting buckle 232 overlaps the end face of the first lap block 221, thereby limiting the axial movement of the mounting shaft 231, that is, limiting the axial movement of the operating member 230 relative to the winding member 220, ensuring the reliability of the operating member 230 driving the winding member 220 to rotate circumferentially. For example, in this embodiment, mounting buckles 232 are provided on both radial sides of the mounting shaft 231 to improve the reliability of axial limiting. Among them, the mounting shaft 231 is made of a plastic part with a certain deformation ability, so that the mounting buckle 232 can pass through the mounting hole 2211 and overlap the upper end face of the first lap block 221.

[0037] See Figure 1 and Figure 2As shown, in one embodiment, the mounting shaft 231 is provided with a limiting rib 233 along at least one side of its own radial direction, that is, the limiting rib 233 extends radially outward relative to the mounting shaft 231, and the limiting rib 233 and the mounting buckle 232 are arranged at intervals along the axial direction of the mounting shaft 231; correspondingly, the first overlapping block 221 is constructed with a limiting groove 2212 for engaging with the limiting rib 233, and the limiting rib 233 and the limiting groove 2212 are engaged with each other to limit the mounting shaft 231 from rotating around its own axis in the mounting hole 2211, thereby preventing the mounting shaft 231 from rotating on its own, thereby ensuring that the mounting shaft 231 can transmit power to the winding member 220, so as to ensure the reliability of the operating member 230 driving the winding member 220 to rotate circumferentially through the mounting shaft 231.

[0038] In other embodiments, the winding member and the operating member may be threadedly fitted in addition to the snap-fit ​​fit between the mounting shaft and the mounting hole. For example, the first connecting portion provided on the winding member is a first threaded hole, and the second connecting portion provided on the operating member is a first threaded member for threaded connection with the first threaded hole. For example, the second connecting portion is a self-tapping screw, etc. In this way, an integrated connection between the winding member and the operating member is achieved.

[0039] See Figure 1 As shown, in one embodiment, one of the winding member 220 and the housing 210 is configured with a central hole 2221, and the other is configured with a central shaft 2112 rotatably connected to the central hole 2221. Figure 1 In the embodiment shown, the shell 210 is constructed with a central axis 2112 extending in the axial direction, the winding member 220 is a cavity structure, and a second overlapping block 222 extending in the axial direction is provided on the bottom wall of the cavity. The second overlapping block 222 is provided with the central hole 2221, and the central axis 2112 is passed through the central hole 2221 to realize the rotational connection between the two.

[0040] The central axis 2112 and the central hole 2221 can be a clearance fit, thereby reducing the resistance to the winding member 220 rotating relative to the housing 210, making the operation smoother and more fluid. Of course, in other embodiments, the central axis 2112 and the central hole 2221 can also be a transition fit, so that sufficient force is required to rotate the winding member 220 to prevent false triggering, etc. It is understandable that the setting positions of the central axis and the central hole can be interchangeable, that is, the central axis is set on the winding member and the central hole is set on the housing, etc.

[0041] See Figure 1 and Figure 2As shown, in one embodiment, the central shaft 2112 has a central buckle 2113 extending outward along at least one side of its own radial direction. The central buckle 2113 forms a lap edge. When the central shaft 2112 is inserted into the central hole 2221, the central buckle 2113 can overlap the end face of the second lap block 222 to limit the movement of the winding member 220 along the central shaft 2112. For example, in this embodiment, central buckles 2113 are provided on both radial sides of the central shaft 2112 to improve the reliability of axial limiting. The central shaft 2112 is made of a plastic part with a certain degree of deformation ability, so that the central buckle 2113 can pass through the central hole 2221 and overlap the upper end face of the second lap block 222.

[0042] like Figure 1 As shown, in some embodiments, the housing 210 and the winding member 220 are both hollow structures, which not only facilitates the assembly of the two, but also makes the handle structure lighter and reduces material costs. Figure 1 As shown, in one embodiment, the shell 210 includes a rear shell 211, and the accommodating cavity 2111 is constructed in the rear shell 211. Furthermore, the shell 210 also includes a front shell 212 that can cover the rear shell 211, and the accommodating cavity 2111 is closed by the front shell 212, thereby improving the waterproof and dustproof capabilities of components such as the winding member 220. Among them, one of the front shell 212 and the rear shell 211 is provided with a hook 2115, and the other is provided with a slot, and the connection between the front shell 212 and the rear shell 211 is achieved by the engagement of the hook 2115 with the slot. For example, Figure 1 In the embodiment shown, a plurality of evenly distributed hooks 2115 are circumferentially provided on the rear shell 211, and correspondingly, a slot (not shown) for engaging with the front shell 212 is provided on the front shell 212. By cooperating with the plurality of hooks 2115 and the slot, the connection reliability between the front shell 212 and the rear shell 211 is improved, thereby improving the reliability of the handle structure 200.

[0043] like Figure 1 As shown, in one embodiment, the handle structure 200 further includes a knob 213 for locking the front shell 212 and the rear shell 211. Specifically, the front shell 212 and the rear shell 211 are provided with external threads, and the knob 213 is provided with internal threads. After the front shell 212 and the rear shell 211 are closed, the knob 213 is screwed onto the external threads of the front shell 212 and the rear shell 211, further locking the front shell 212 and the rear shell 211 and reducing the possibility of the front shell 212 and the rear shell 211 being separated.

[0044] Further, an embodiment of the present application also provides an endoscope (not shown in the figure) comprising the handle structure 200 of the endoscope as described above. It can be understood that the endoscope can also comprise a traction line (not shown in the figure) and a snake bone (not shown in the figure), one end of the traction line being connected to the winding member and the other end being connected to the snake bone. In use, the operating member is rotated to drive the winding member to rotate through the operating member, and then the bending of the snake bone is realized through the traction line to adapt to the actual use requirement.

[0045] The technical features of the above-mentioned embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist in contradiction, they should be considered as the scope of the present application.

[0046] The above-mentioned embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, however, it should not be understood as the limitation to the patent application scope. It should be pointed out that, for the ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A handle structure of an endoscope, characterized in that: The handle structure of the endoscope includes: A housing (210), wherein the housing (210) is configured with a receiving cavity (2111); A winding member (220), the winding member (220) being rotatably disposed in the accommodating cavity (2111); the winding member (220) being provided with a first connecting portion; An operating member (230) includes a main body (235), one of the main body (235) and the winding member (220) is provided with a first connecting portion, and the other is provided with a second connecting portion for detachably connecting to the first connecting portion, so that the main body (235) can drive the winding member (220) to rotate around its axis.

2. The handle structure of the endoscope according to claim 1, characterized in that: The first connecting portion comprises a first connecting block (221), the first connecting block (221) being configured with a mounting hole (2211); the second connecting portion comprises a mounting shaft (231) extending along the axis, the mounting shaft (231) being snap-fitted with the mounting hole (2211).

3. The handle structure of the endoscope according to claim 2, characterized in that: The installation shaft (231) is provided with an installation buckle (232) on at least one side along its radial direction, and the installation buckle (232) can overlap the end surface of the first overlap block (221) to limit the installation shaft (231) from moving along its own axial direction.

4. The handle structure of the endoscope according to claim 2, characterized in that: The installation shaft (231) is provided with a limiting rib (233) along at least one side of its radial direction, and the first lap block (221) is configured with a limiting groove (2212) for engaging with the limiting rib (233) to limit the installation shaft (231) from rotating around its own axial direction.

5. The handle structure of the endoscope according to claim 1, characterized in that: The first connecting portion includes a first threaded hole, and the second connecting portion includes a first threaded member for threaded connection with the first threaded hole.

6. The handle structure of the endoscope according to claim 1, characterized in that: One of the winding member (220) and the housing (210) is configured with a central hole (2221), and the other is configured with a central shaft (2112) rotatably connected to the central hole (2221).

7. The handle structure of the endoscope according to claim 6, characterized in that: The winding member (220) is constructed with a second overlapping block (222), and the second overlapping block (222) is provided with the central hole (2221); the housing (210) is constructed with the central axis (2112).

8. The handle structure of the endoscope according to claim 7, characterized in that: The central axis (2112) is provided with a central buckle (2113) along at least one side of its own radial direction, and the central buckle (2113) can overlap the end surface of the second overlapping block (222) to limit the movement of the winding member (220) along the central axis (2112).

9. The handle structure of an endoscope according to claim 1, characterized in that: The housing (210) comprises a rear shell (211), and the accommodating cavity (2111) is constructed within the rear shell (211); The housing (210) further includes a front housing (212) capable of covering the rear housing (211); The handle structure further comprises a rotary buckle (213) for locking the front shell (212) and the rear shell (211).

10. An endoscope, characterized in that: A handle structure comprising an endoscope according to any one of claims 1 to 9.

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