Winding module and endoscope

Abstract

The utility model discloses a winding module and an endoscope, the winding module comprises a winding roll, a pull wire and a fastener, the winding roll is rotatably arranged, and the peripheral surface of the winding roll is provided with a wiring groove; the traction wire comprises a traction section and a winding section which are connected with each other, and the winding section comprises a first wire section arranged in the wiring groove; the winding roll is further provided with a blocking rib, and the blocking rib is arranged at a groove opening of the wiring groove and extends in the axial direction of the winding roll so as to limit the first line segment to be disengaged from the interior of the wiring groove outwards. According to the winding module, the assembly process of the winding module can be simplified, repeated dispensing operation can be directly replaced through the arrangement of the partition ribs, the assembly cost can be reduced, and finally the overall quality and reliability of the winding module can be improved.

Description

Technical Field

[0001] This utility model relates to the field of endoscope technology, specifically to a wire winding module and an endoscope. Background Technology

[0002] Current endoscopes typically require a winding module to drive the lateral bending adjustment of the insertion tube. This winding module generally includes a winding reel and a traction cable. The traction cable consists of a section wound around the reel and a section extending outward from the reel and connecting to the insertion tube. In existing endoscopes, when the winding section is positioned within the wiring groove of the reel, multiple applications of adhesive are typically used to secure it in place, preventing it from detaching. This increases the complexity of the overall manufacturing and assembly process of the winding module and raises economic costs. Utility Model Content

[0003] The main purpose of this invention is to propose a winding module and endoscope, which aims to solve the problem that the traction wire in traditional technology requires multiple glue application processes, which easily leads to complicated processing.

[0004] To achieve the above objectives, this utility model proposes a winding module, comprising:

[0005] A cable reel, rotatable about its own axis, has wiring grooves formed on its outer peripheral surface; and,

[0006] The traction line includes a traction section and a winding section connected together, the winding section including a first line segment laid in the wiring groove;

[0007] The reel is further provided with a baffle rib, which is located at the opening of the wiring groove and extends along the axial direction of the reel to restrict the first wire segment from coming out of the wiring groove.

[0008] Optionally, the baffle rib spans across the wiring groove and is connected and fixed to the portion of the cable reel located on both sides of the width of the wiring groove.

[0009] Optionally, the baffle rib is integrally formed with the winding reel; or,

[0010] The baffle rib and the winding reel are separately formed and then connected in a detachable or non-detachable manner.

[0011] Optionally, the wiring groove for the same first line segment includes two groove segments spaced apart along the circumference of the reel, and the portion of the reel located between the two groove segments has a wiring hole extending along its circumference, the wiring hole connecting the two groove segments.

[0012] The portion of the winding reel that passes through the wiring hole constitutes the baffle rib.

[0013] Optionally, the wiring trough for the same first line segment is provided with a baffle rib, which is located at or near the middle section of the wiring trough.

[0014] Optionally, the radial outer surface of the baffle rib is flush with the peripheral surface of the winding reel at the same location.

[0015] Optionally, the reel is also provided with a limiting groove on its shaft end surface, and the limiting groove and the wiring groove are connected by a through hole;

[0016] The winding segment also includes a second segment that is disposed in the limiting groove through the through hole;

[0017] The winding module also includes a fastener that is detachably connected to the winding reel and, when connected, limits the second wire segment within the limiting groove.

[0018] Optionally, the bottom wall of the limiting groove is provided with a connecting hole, and the fastener is detachably inserted into the connecting hole; wherein,

[0019] The connecting hole is provided with an internal thread, and the fastener is provided with an external thread, the external thread engaging with the internal thread for connection; or...

[0020] The wall of the connecting hole is smooth, the fastener is provided with external thread, and the winding module also includes a nut. The nut is located at the shaft end of the winding reel opposite to the limiting groove and is provided with an internal thread that engages with the external thread.

[0021] Optionally, two wiring channels are provided, and they are arranged symmetrically about one radial direction of the cable reel;

[0022] The limiting groove, the traction line, and the fastener are provided in two corresponding to the two wiring grooves.

[0023] In addition, to achieve the above objectives, this utility model also provides an endoscope, including the winding module described above.

[0024] In the technical solution provided by this utility model, when the first line segment is laid in the wiring groove, the baffle ribs provide radial blocking for the first line segment, which can effectively prevent the first line segment from coming out of the wiring groove through the groove opening, thereby achieving the purpose of securing the traction wire in the wiring groove. This can help simplify the assembly process of the winding module. The baffle ribs can directly replace multiple glue application operations, and also help reduce assembly costs, ultimately helping to improve the overall quality and reliability of the winding module. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 A three-dimensional schematic diagram of a partial structure of an embodiment of the endoscope provided by this utility model;

[0027] Figure 2 for Figure 1 A 3D schematic diagram of the winding module;

[0028] Figure 3 for Figure 1 Axial schematic diagram of the winding module;

[0029] Figure 4 for Figure 1 A schematic diagram showing the main structure of the winding module.

[0030] Explanation of icon numbers:

[0031] 100 Housing; 200 Cable winding module; 210 Cable winding reel; 211 Wiring groove; 212 Limiting groove; 212a First groove section; 212b Second groove section; 213 Through hole; 214 Connecting hole; 220 Fastener; 221 Connecting section; 222 End section; 230 Nut; 240 Spacer rib; 241 Wiring hole.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] Please see Figures 1 to 4 This utility model provides a winding module 200 and its operating components and endoscope.

[0037] The endoscope includes an operating component and an insertion component protruding from the front end of the operating component. During the surgical procedure, at least a portion of the insertion component is inserted into the patient's body, while the operating component is externally positioned for the operator to hold, facilitating manipulation of the insertion component and related medical devices.

[0038] The operating components include a housing 100 and a winding module 200. The housing 100 includes at least two shell structures that are detachably connected and, when connected, together enclose and define an inner cavity. The winding module 200 is at least partially housed within the inner cavity of the housing 100.

[0039] Specifically, the winding module 200 includes a winding reel 210 and a traction wire. The winding reel 210 is rotatable around its own axis, and a wiring groove 211 is formed on the outer peripheral surface of the winding reel 210. The traction wire includes a traction section and a winding section connected together, and the winding section includes a first wire segment laid in the wiring groove 211. The winding reel 210 is also provided with a baffle 240, which is located at the opening of the wiring groove 211 and extends along the axial direction of the winding reel 210 to restrict the first wire segment from coming out of the wiring groove 211.

[0040] In the technical solution provided by this utility model, when the first line segment is laid in the wiring groove 211, the baffle 240 radially stops the first line segment, which can effectively prevent the first line segment from coming out of the wiring groove 211 through the groove opening, so as to achieve the purpose of fastening the wiring of the traction wire in the wiring groove 211. This can help simplify the assembly process of the winding module 200. The setting of the baffle 240 can directly replace multiple glue dispensing operations, and also help reduce assembly costs, ultimately helping to improve the overall quality and reliability of the winding module 200.

[0041] The reel 210 is generally disc-shaped, with its own axis corresponding to the central axis of the disc. The reel 210 is generally rotatably mounted inside the housing 100 via a fixed shaft or other structure. Specifically, the winding module 200 generally also includes an operating component, which is connected to the reel 210 and extends at least partially outward from the inner cavity of the housing 100 for the operator to hold and operate, thereby rotating the reel 210.

[0042] A wiring groove 211 is formed on the outer peripheral surface of the reel 210, extending elongatedly along the circumference of the reel 210. The winding section of the traction wire is wound around the reel 210, extending forward and passing through the insertion member, where it is fixedly connected to the side wall of the front end of the insertion member. Thus, when the reel 210 is rotated, the winding section can be driven to either take up or release the wire. During take-up, the traction section causes the insertion member to bend laterally; conversely, during release, the traction section causes the insertion member to return to its original position.

[0043] The wiring groove 211 extends elongatedly along the circumference of the cable reel 210, and has an opening in the wiring groove 211 extending axially along the width of the cable reel 210. For ease of understanding, when the outer peripheral sidewall of the cable reel 210 has a first portion and a second portion that are oppositely positioned to each other in the width direction of the wiring groove 211:

[0044] The partition rib 240 can protrude from the first part and bend towards the second part to maintain a distance from the second part. In this case, the extension length of the partition rib 240 is at least sufficient to cover the first line segment so as to achieve the purpose of limiting and stopping the first line segment.

[0045] Alternatively, the partition rib 240 may protrude from the first part and bend towards the second part to maintain connection with the second part. In this case, the partition rib 240 is directly installed across both sides of the width of the wiring groove 211, which is sufficient to cover the first line segment, so as to achieve the purpose of limiting and stopping the first line segment.

[0046] A gap is maintained between the partition rib 240 and the bottom wall of the wiring trough 211, but the gap between them needs to be set within an appropriate range. This gap should not be too small, causing the partition rib 240 to excessively suppress the first line segment, resulting in structural damage to the first line segment and excessive obstruction to the threading process of the first line segment; conversely, this gap should not be too large, causing the limiting effect of the partition rib 240 on the first line segment to weaken, resulting in the first line segment forming too many unnecessary degrees of freedom in the area between the partition rib 240 and the bottom wall of the wiring trough 211, causing the first line segment to loosen and slip.

[0047] The aforementioned baffle 240 can be integrally formed with the cable reel 210. For example, the wiring groove 211 for the same first line segment includes two groove segments spaced apart circumferentially along the cable reel 210. A wiring hole 241 is provided circumferentially through the portion of the cable reel 210 located between the two groove segments, and the wiring hole 241 connects the two groove segments. The portion of the cable reel 210 through which the wiring hole 241 is provided constitutes the baffle 240. That is, by directly opening two groove structures at the cable reel 210, a stop structure can be naturally formed between the two groove segments. The two groove segments and the wiring hole 241 together constitute the wiring groove 211, and the portion between the two groove segments constitutes the baffle 240, which has the characteristics of simple structure and easy forming.

[0048] Of course, the aforementioned baffle 240 can also be detachably or non-detachably connected to the winding reel 210 after being separately formed. In this way, the material of the baffle 240 can be selectively differentiated from the material of the winding reel 210, for example, the material of the baffle 240 can be an elastic material.

[0049] The number and position of the baffle ribs 240 provided in the wiring trough 211 for the same first line segment can be adjusted according to actual needs. One or at least two baffle ribs 240 can be provided. Furthermore, the baffle ribs 240 can be placed at any suitable location within the wiring trough 211. For example… Figures 1 to 4 In the structure shown, there is one partition rib 240, and the partition rib 240 is located in or near the middle section of the wiring groove 211.

[0050] The radial outer surface of the baffle 240 is flush with the peripheral surface of the coil 210 at its location. This ensures that no protrusions are formed on the entire outer peripheral sidewall of the coil 210, preventing interference with other peripheral components during its rotation.

[0051] Furthermore, based on one or more of the above embodiments, the shaft end surface of the winding reel 210 is provided with a limiting groove 212, and the wiring groove 211 and the limiting groove 212 are connected through a through hole 213; the winding segment also includes a second wire segment laid in the limiting groove 212 through the through hole 213; the winding module 200 also includes a fastener 220, which is detachably connected to the winding reel 210, and when connected, limits the second wire segment in the limiting groove 212.

[0052] While performing the connection and fixing operation between the fastener 220 and the winding reel 210, the second wire segment can also be confined within the limiting groove 212, achieving the purpose of connecting and fixing the winding segment relative to the winding reel 210. Compared with the traditional glue application process, this application helps to simplify the assembly process of the winding module 200. The single fastening operation of the fastener 220 directly replaces multiple glue application operations, which also helps to reduce assembly costs. On the other hand, it helps to improve the connection strength between the winding segment and the winding reel 210, and to a certain extent, the fastener 220 enhances the overall structure of the winding module 200, ultimately helping to improve the overall quality and reliability of the winding module 200.

[0053] The shaft end surface of the reel 210 is provided with a limiting groove 212. In this way, on the one hand, the limiting groove 212 and the wiring groove 211 are staggered on the reel 210, avoiding excessive space occupation on the outer peripheral surface of the reel 210 when the wiring groove 211 and the limiting groove 212 are both opened on the outer peripheral surface of the reel 210, resulting in an excessive thickness of the reel 210; on the other hand, the limiting groove 212 and the wiring groove 211 can be reversed through the through hole 213, that is, the first line segment laid in the wiring groove 211 and the second line segment laid in the limiting groove 212 form an angle, increasing the degree of interference of the reel 210 on the traction line and preventing the traction line from being displaced relative to the reel 210.

[0054] In practical applications, the through hole 213 can be formed at any segment of the wiring groove 211 and / or the limiting groove 212. However, in order to make the structure of the wiring groove 211, the through hole 213, and the limiting groove 212 more reasonable and practical, in one embodiment, the through hole 213 is formed at one circumferential end of the wiring groove 211 and the limiting groove 212; the wiring groove 211 has a first orthographic projection along the axial direction, and the limiting groove 212 has a second orthographic projection along the axial direction. The first and second orthographic projections are radially offset, and the first and second orthographic projections are located on the same circumferential side of the through hole 213. The radial offset of the first and second orthographic projections avoids the creation of too many recessed structures in the same radial area of ​​the winding reel 210, which would reduce its structural strength. The first orthographic projection and the second orthographic projection are located on the same side of the circumference of the through hole 213, which allows the second line segment to be arranged in the opposite direction in the limiting groove 212 when the first line segment is arranged in one direction in the wiring groove 211, thereby increasing the included angle between the first line segment and the second line segment and thus increasing the degree of interference between the winding segment and the winding reel 210 as much as possible.

[0055] Fastener 220 can be a separate structure specifically designed to fasten the second segment. Alternatively, fastener 220 can be an inherent structure in the winding module 200, the operating components, or the endoscope, used to limit the movement of the second segment.

[0056] The detachable connection method between fastener 220 and reel 210 is not limited, and can be, but is not limited to, threaded connection between screw and threaded hole, fastening between snap-fit ​​and snap-hole, adsorption between adsorption component and adsorption surface, interference fit connection between protruding structure and recessed structure, etc.

[0057] Specifically, in one embodiment, the bottom wall of the limiting groove 212 is provided with a connecting hole 214; the fastener 220 is detachably inserted into the connecting hole 214. As can be seen from the above, the fastener 220 and the connecting hole 214 can be directly connected by interference fit, fastening, or threaded connection.

[0058] When threaded connections are made: In one application, the connecting hole 214 is provided with an internal thread, and the fastener 220 is provided with an external thread. The external thread and the internal thread are connected in a mating manner, making the structure simpler and the operation more convenient; or in another application, the hole wall of the connecting hole 214 is a smooth surface, the fastener 220 is provided with an external thread, and the winding module 200 also includes a nut 230. The nut 230 is located at the shaft end of the winding reel 210 opposite to the limiting groove 212, and is provided with an internal thread that mates with the external thread, making the processing technology of the winding reel 210 simpler and the connection strength between the fastener 220 and the winding reel 210 stronger.

[0059] Fastener 220 also does not restrict the limiting method for the second segment:

[0060] In one application, the fastener 220 includes a connecting section 221 extending into a connecting hole 214 and an end section 222 extending out of the connecting hole 214. The end section 222 protrudes laterally from the connecting hole 214, forming a pressing surface. When the connecting section 221 is inserted into the connecting hole 214, the pressing surface of the end section 222 and the bottom wall of the limiting groove 212 together clamp and limit the second line segment, thereby achieving the purpose of pressing and fixing the second line segment against the bottom wall of the limiting groove 212. In this way, it can be ensured that the pressing surface of the end section 222 and the bottom wall of the limiting groove 212 form a large contact area to clamp and limit the second line segment, avoiding stress concentration that could cause the second line segment to be pinched or punctured.

[0061] In the above embodiment, the connecting hole 214 is located in the middle of the limiting groove 212, dividing the limiting groove 212 into a first groove segment 212a near the through hole 213 and the remaining second groove segment 212b; the second line segment extends to the second groove segment 212b. In this way, on the one hand, it can be ensured that the second line segment spans the pressing surface of the end segment 222, providing sufficient area for the end segment 222 to be pressed; on the other hand, a free section of the second line segment can be reserved at the second groove segment 212b, which is convenient for the operator to hold the free section of the second line segment to adjust the installation of the fastener 220 or the traction line.

[0062] Furthermore, in a direction away from the first groove segment 212a, the bottom wall of the second groove segment 212b extends inclined toward its opening. When the free segment of the second line segment is placed at the inclined bottom wall of the second groove segment 212b, the free segment of the second line segment can naturally tilt outward at a certain angle, making it easier for the operator to hold.

[0063] In another application, fastener 220 includes a connecting section 221 extending into a connecting hole 214 and an end section 222 extending out of the connecting hole 214; a second line segment is wound around the outer periphery of the connecting section 221, and when the connecting section 221 is inserted into the connecting hole 214, the second line segment is clamped and limited between the outer wall of the connecting section 221 and the wall of the connecting hole 214. By winding the second line segment at least one turn, the interference area between the second line segment and the fastener 220 can be increased, thereby enhancing the interference strength between the second line segment and the fastener 220, ultimately helping to optimize the fastening effect of the fastener 220 on the second line segment.

[0064] Based on one or more of the above embodiments, further, two wiring slots 211 are provided, and are arranged radially symmetrically about the winding reel 210; two limiting slots 212, two traction wires, and two fasteners 220 are provided corresponding to the two wiring slots 211. The front ends of the two traction wires can be connected and fixed to the radial sides of the same section of the insertion component, thereby realizing forward and reverse lateral bending adjustment of the insertion component in the same section. Alternatively, the front ends of the two traction wires can be connected and fixed to the sides of different sections of the insertion component, thereby realizing lateral bending adjustment of the insertion component in different sections.

[0065] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wire winding module, characterized in that The reel module comprises: a reel rotatable about its axis, the reel having a peripheral surface with a routing groove; and a pull line comprising a pull segment and a winding segment connected together, the winding segment comprising a first line segment routed in the routing groove; wherein the reel further has a barrier rib provided at the opening of the routing groove and extending along the axial direction of the reel to limit the first line segment from escaping out of the routing groove.

2. The wire winding module of claim 1, wherein The barrier rib is provided across the routing groove and is connected and fixed to the reel at positions on both sides of the groove width of the routing groove.

3. The wire winding module of claim 1, wherein the wire winding module is configured to be mounted to a wire winding machine. The barrier rib is integrally formed with the reel; or the barrier rib is separately formed with the reel and then connected together in a detachable or non-detachable manner.

4. The wire winding module of claim 1, wherein The routing groove for routing the same first line segment comprises two groove segments spaced apart along the circumferential direction of the reel, the reel having a routing hole extending through the reel at a position between the two groove segments, the routing hole connecting the two groove segments together; wherein the position of the reel with the routing hole extending therethrough constitutes the barrier rib.

5. The wire winding module of claim 1, wherein the wire winding module is configured to be mounted to a wire winding machine. The routing groove for routing the same first line segment has one barrier rib provided at or close to the middle section of the routing groove.

6. The wire winding module of claim 1, wherein: The radially outer surface of the barrier rib is flush with the peripheral surface of the reel at the position thereof.

7. The wire winding module according to any one of claims 1 to 6, characterized in that The reel further has a limiting groove provided at the axial end surface thereof, the limiting groove and the routing groove being connected together through a through hole; the winding segment further comprises a second line segment routed in the limiting groove through the through hole; the reel module further comprises a fastener detachably connected to the reel and limiting the second line segment in the limiting groove when connected together.

8. The wire winding module of claim 7, wherein the wire guide is a wire guide ring. The bottom wall of the limiting groove has a connecting hole, the fastener being detachably inserted into the connecting hole; wherein the connecting hole has an internal thread, the fastener has an external thread, and the external thread is connected to the internal thread; or the hole wall of the connecting hole is a smooth surface, the fastener has an external thread, the reel module further comprises a nut member provided at the axial end of the reel opposite to the limiting groove and having an internal thread connected to the external thread.

9. The wire winding module of claim 7, wherein the wire guide is a wire guide ring. The routing groove is provided in two and is radially symmetric about the reel; the limiting groove, the pull line and the fastener are respectively provided in two corresponding to the two routing grooves.

10. An endoscope characterized by comprising: The reel module comprises any one of claims 1 to 9.

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