Control mechanism of endoscope handle

Abstract

The utility model discloses a control mechanism of an endoscope handle, which comprises a shell, at least one group of control components are arranged in the shell, an input component of each control component comprises an operating rod arranged in the shell, and an operating end of each operating rod is positioned outside the shell; an output assembly of the control assembly comprises two traction wires; a transmission assembly of the control assembly comprises two transmission rods, the transmission rods extend in the shell in the length direction of the shell, the rear ends of the two transmission rods are connected with an operation rod, two traction wires are fixed to the front ends of the two transmission rods respectively, and steering mechanisms are arranged between the transmission rods and the operation rod or the traction wires. The force received by the operating rod is transmitted through the two transmission rods, the force transmission efficiency of the rigid transmission rods is higher, the force needed by the transmission assembly is reduced, operation is more labor-saving, and control is more comfortable. And the transmission assembly is kept stable in movement in the movement process, so that smooth control can be kept in the operation process, and the operation comfort is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices and equipment, and in particular to a control mechanism for an endoscope handle. Background Technology

[0002] An endoscope is a medical device that enters the body through natural passages to perform examinations or treatments. In recent years, endoscopes have been widely used in the medical field. An endoscope consists of an insertion section that is inserted into the patient's body cavity and an operating lever connected to the base of the insertion section. The operating lever includes an operating rod and an operating knob mounted on the housing. A transmission mechanism is located within the housing, transmitting the driving force received by the operating lever to the insertion section, thereby driving the movable part at the front end of the insertion section for remote operation.

[0003] Traditional transmission mechanisms include a traction wire connected to the operating component. The rotation of the operating component drives the traction wire to pull back and forth for traction. However, the traction wire is a flexible structure, and power cannot be transmitted when the traction wire is not fully stretched. The handle has many control mechanisms inside, and the traction wire may bend during installation or use, resulting in power loss. This means that controlling the bending part requires a lot of force, making the operation of the endoscope very laborious. Utility Model Content

[0004] In order to overcome at least one of the technical problems of the prior art, the present invention provides a control mechanism for an endoscope handle that provides uniform control force, strong operating comfort, and easier operation.

[0005] A control mechanism for an endoscope handle is provided, comprising a housing, within which at least one set of control components is disposed. The control components include an input component, an output component, and a transmission component. The input component includes an operating lever disposed within the housing, with its operating end located outside the housing. The output component includes two traction wires. The transmission component includes two transmission rods extending along the length of the housing and disposed within the housing. The rear ends of the two transmission rods are connected to the operating lever, and the two traction wires are respectively fixed to the front ends of the two transmission rods. A steering mechanism is provided between the transmission rods and the operating lever or traction wires, the steering mechanism causing the transmission rods to drive the traction wires to move in the opposite direction.

[0006] The aforementioned endoscope control mechanism has at least the following beneficial effects: It transmits the force received by the operating lever through two transmission rods; the rigid transmission rods have higher force transmission efficiency, reducing the force required by the transmission components, making operation more effortless and control more comfortable. Furthermore, the transmission components maintain smooth movement during operation, ensuring fluid control and enhancing operational comfort.

[0007] In some embodiments of the aforementioned endoscope control mechanism, the steering mechanism includes a first rotor and a second rotor, which are rotatably mounted within the housing. Two traction wires are wound in opposite directions around the first and second rotors. The front end of a transmission rod is connected to the first and second rotors, and the transmission rod drives the first and second rotors to rotate simultaneously in the same direction. One traction wire rewinds and shortens while the other traction wire extends in the opposite direction. By using two rotors to fix and guide the traction wires, the reverse movement of the traction wires is achieved, reducing the number of components in the transmission assembly, simplifying the installation of the handle, and making the handle lighter and smaller.

[0008] In some embodiments of the aforementioned endoscope control mechanism, two transmission rods are hinged to the first rotor and the second rotor, respectively. The forward and backward movement of the transmission rods drives the first rotor and the second rotor to rotate simultaneously. Direct connection of the transmission rods to the first rotor and the second rotor directly transmits the control force to the rotors, reducing the number of components inside the handle, simplifying handle installation, reducing the space occupied by the control mechanism, and making the handle smaller, lighter, and more suitable for gripping.

[0009] In some embodiments of the aforementioned endoscope control mechanism, the transmission assembly includes a first rotor and a second rotor, which are rotatably disposed within a housing. Two traction wires are wound in the same direction around the first and second rotors. The front end of the transmission rod is connected to the first and second rotors, and the rear end of the transmission rod is connected to a steering mechanism, driving the two transmission rods to move in opposite directions. By controlling the contraction of the traction wires through the rotation of the rotors, the connection between the transmission rods and the rotors is stable and reliable, resulting in more stable control.

[0010] In some embodiments of the aforementioned endoscope control mechanism, the transmission assembly includes a third gear, with the first and second rotors fixed on either side of the third gear, and the front end of the transmission rod meshing with the third gear. The third gear drives the first and second rotors to rotate simultaneously. The transmission assembly has fewer parts, is easy to install, and makes the handle operation more convenient and effortless.

[0011] In some embodiments of the aforementioned endoscope control mechanism, the steering mechanism further includes a first gear and a second gear. The first rotor and the second rotor are respectively fixed to the first gear and the second gear. The first gear and the second gear are respectively meshed with two transmission rods. The back-and-forth movement of the transmission rods drives the first gear and the second gear to rotate. By driving the rotor to rotate through the gears, and with the transmission rods meshing with the gears, the high transmission efficiency of the gears makes the operation of the handle more effortless.

[0012] In some embodiments of the aforementioned endoscope control mechanism, the steering mechanism includes an input gear connected to an operating lever. The operating lever drives the input gear to rotate. Two transmission rods are symmetrically arranged on both sides of the input gear, and each transmission rod meshes with the input gear. The operating lever controls the movement of the two transmission rods. Controlling the simultaneous movement of the two transmission rods via the input gear results in a simple structure with fewer parts. The entire control mechanism is quick and easy to install, occupies little space, and allows for a smaller handle, making it easier to grip and operate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the internal structure of the endoscope handle according to the first embodiment of this utility model;

[0015] Figure 2 This is a front view of the control component according to the first embodiment of the present invention;

[0016] Figure 3 This is a front view of the control component according to the second embodiment of the present invention;

[0017] Figure 4 This is a top view of the control component according to the second embodiment of the present invention;

[0018] Figure 5 This is a front view of the control component according to the third embodiment of the present invention;

[0019] Figure 6 This is a top view of the control component according to the third embodiment of the present invention;

[0020] Figure 7 This is a left view of the control component according to the third embodiment of the present invention;

[0021] Figure 8 This is a top view of the control component according to the fourth embodiment of the present invention;

[0022] Figure 9 This is a front view of the control component according to the fifth embodiment of this utility model. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Reference Figures 1 to 8 A control mechanism for an endoscope handle is provided, including a housing 1. At least one set of control components is disposed within the housing 1, including an input component, an output component, and a transmission component. The endoscope handle is connected to an insertion part. One set of control components controls the insertion part to bend or twist in one direction. When multi-directional bending or twisting is required, multiple sets of control components are disposed within the housing 1 for directional control. Each set of control components includes an input component, an output component, a mounting rotor, and a transmission component. The input component receives the operator's operating force, the transmission component transmits the force to the mounting rotor, the mounting rotor drives the output component to move, and the output component is connected to the insertion part to realize the movement of the insertion part.

[0026] The input component includes an operating rod 2 disposed inside the housing 1, with the operating end of the operating rod 2 located outside the housing 1; the output component includes two traction wires 3. The ends of the two traction wires 3 are respectively fixed to the curved tube of the insertion part, and the two traction wires 3 are located on both sides of the curved tube. Through the opposite movement of the two traction wires 3, the curved tube is extended on one side and contracted on the other side, thus completing the movement of the curved tube.

[0027] The transmission assembly includes two transmission rods 4, which extend along the length of the housing 1 and are disposed within the housing 1. The transmission rods 4 can be configured to match the shape of the housing 1; for example, if the housing 1 is arc-shaped or curved, the transmission rods 4 can be configured as arc-shaped rods, curved rods, or other irregularly shaped structures. The transmission rods 4 also facilitate transmission and control of irregularly shaped handles, avoiding energy loss caused by the movement of the traction wire 3 within the irregularly shaped handle. The rear ends of the two transmission rods 4 are connected to the operating lever 2, and the two traction wires 3 are respectively fixed to the front ends of the two transmission rods 4. A steering mechanism is provided between the transmission rods 4 and the operating lever 2 or the traction wires 3. The steering mechanism causes the transmission rods 4 to drive the traction wires 3 to move in opposite directions, so that one of the traction wires 3 extends while the other retracts and shortens.

[0028] The force received by the operating lever 2 is transmitted through two transmission rods 4. The rigid transmission rods offer higher force transmission efficiency, reducing the force required by the transmission components, making operation more effortless and control more comfortable. Furthermore, the transmission components maintain smooth movement during operation, ensuring fluid control and enhancing user comfort. Using two transmission rods 4 for control improves...

[0029] In some embodiments, the two transmission rods 4 are hinged to the first rotor 5 and the second rotor 6 respectively. The back-and-forth movement of the transmission rods 4 drives the first rotor 5 and the second rotor 6 to rotate simultaneously. The transmission rods 4 are directly connected to the first rotor 5 and the second rotor 6, directly transmitting the control force to the rotors. This reduces the number of parts in the handle, simplifies the handle installation, reduces the space occupied by the control mechanism, and makes the handle smaller, lighter, and more suitable for holding.

[0030] Reference Appendix Figure 1 and attached Figure 2 In the first embodiment, the front end of each transmission rod 4 is connected to the traction wire 3, and the end of the transmission rod 4 is connected to the operating rod 2 through a steering mechanism. The rotation of the operating rod 2 drives the two transmission rods 4 to move in opposite directions. At this time, the two traction wires 3 are pulled to move in different directions, thereby causing the insertion part connected to the end of the traction wire 3 to bend or twist.

[0031] In the first embodiment, the steering mechanism is an input gear 9 fixed to the operating lever 2. Two transmission rods 4 are located on the upper and lower sides of the input gear 9, respectively. When the input gear 9 rotates with the operating lever 2, the two transmission rods 4 move in opposite directions. A single input gear 9 can realize the movement of the two transmission rods 4. The steering mechanism is simple and easy to install. Moreover, the movement of the transmission rods 4 is highly synchronized, the movement distance of the traction wire 3 is equal, the tension on both sides of the insertion end is even, the bending performance is better, and the problem of excessive tension on one side is less likely to occur, reducing the occurrence of bending.

[0032] To facilitate the movement of the traction wire 3 and reduce the space required for its movement, the steering mechanism may include a first rotor 5 and a second rotor 6. The first rotor 5 and the second rotor 6 are rotatably mounted within the housing 1. Two traction wires 3 are wound in opposite directions around the first rotor 5 and the second rotor 6. The front end of the transmission rod 4 is connected to the first rotor 5 and the second rotor 6, and the transmission rod 4 drives the first rotor 5 and the second rotor 6 to rotate simultaneously in the same direction. One traction wire 3 rewinds and shortens while the other traction wire 3 extends in the opposite direction. Using rotors to fix and guide the traction wire 3 facilitates its installation. The reverse movement of the traction wire 3 is achieved through simple components, simplifying the handle installation and making the handle lighter and smaller. Furthermore, installing the rotors keeps the traction wire 3 taut, which helps transmit control force to the end of the traction wire 3, facilitating control of the insertion part.

[0033] Reference Appendix Figure 3 and attached Figure 4 In the second embodiment, the hinge shafts of the first rotor 5 and the second rotor 6 are eccentrically positioned. The connection point between the transmission rod 4 and the first rotor 5 and the second rotor 6 is located at a symmetrical point relative to the center of the hinge shaft, maximizing the distance between the connection point and the hinge shaft and resulting in a longer radius of rotation. This increased radius of rotation leads to a larger circumference of the rotor's motion, resulting in a greater contraction or extension distance of the traction wire 3. Within the same range of motion, the traction wire 3 has a greater range of motion, and the insertion part has a larger bending or twisting angle. This also reduces the size of the first rotor 5 and the second rotor 6, facilitating a reduction in the handle's volume.

[0034] Furthermore, to facilitate control of the rotor rotation, the transmission assembly includes a third gear 10. The first rotor 5 and the second rotor 6 are fixed on both sides of the third gear 10, and the front end of the transmission rod 4 is meshed with the third gear 10. The third gear 10 drives the first rotor 5 and the second rotor 6 to rotate simultaneously. The transmission assembly has fewer parts, is easy to install, and makes the handle operation more convenient and effortless.

[0035] Reference Appendix Figure 3 and attached Figure 4 In the third embodiment, the front end of the transmission rod 4 meshes with the third gear 10, and the first rotor 5 and the second rotor 6 are fixed on both sides of the third gear 10. The third gear 10 and the mounting rotors are fixedly connected, which facilitates the simultaneous assembly of the transmission rod 4 with the two mounting rotors. Moreover, when the first rotor 5 and the second rotor 6 are coaxially fixed on the third gear 10, the rotation speeds of the first rotor 5 and the second rotor 6 are the same, so the release and retraction distances of the two traction wires 3 are also the same, making the force on both sides of the transmission assembly the same and preventing unilateral bending.

[0036] In some other embodiments, the steering mechanism further includes a first gear 7 and a second gear 8. The first rotor 5 and the second rotor 6 are respectively fixed to the first gear 7 and the second gear 8. The first gear 7 and the second gear 8 are respectively meshed with two transmission rods 4. The back-and-forth movement of the transmission rods 4 drives the first gear 7 and the second gear 8 to rotate. The rotation of the rotor is driven by the gears, and the meshing of the transmission rods 4 with the gears results in high transmission efficiency, making the operation of the handle more effortless.

[0037] Reference Appendix Figure 8 The fourth embodiment and the appendix Figure 9 In the fifth embodiment, the first rotor 5 and the second rotor 6 are fixedly connected to the first gear 7 and the second gear 8, respectively. The first gear 7 and the second gear 8 mesh with a transmission rod 4, and the rotation of the first gear 7 and the second gear 8 drives the first rotor 5 and the second rotor 6 to rotate. (See attached...) Figure 5-7 In the third embodiment, the third gear 10 can be replaced by the first gear 7 and the second gear 8. The first rotor 5 and the second rotor are fixedly connected to the first gear 7 and the second gear 8, respectively, and the two transmission rods 4 mesh with the first gear 7 and the second gear 8, respectively. Furthermore, depending on the requirements of the handle's internal structure, tooth patterns can be set at different positions on the transmission rods 4, and the first gear 7 and the second gear 8 can be positioned at different locations on the two transmission rods 4. For example, the first gear 7 meshes with the transmission rod 4 at the front end, and the second gear 8 meshes with the other transmission rod 4 in the middle, making the structure more flexible.

[0038] In some embodiments of the aforementioned endoscope control mechanism, the transmission assembly includes a first rotor 5 and a second rotor 6, which are rotatably disposed within the housing 1. Two traction wires 3 are wound in the same direction around the first rotor 5 and the second rotor 6. The front end of the transmission rod 4 is connected to the first rotor 5 and the second rotor 6, and the rear end of the transmission rod 4 is connected to a steering mechanism, driving the two transmission rods 4 to move in opposite directions. By controlling the contraction of the traction wires 3 through the rotation of the rotors, the connection between the transmission rod 4 and the rotors is stable and reliable, resulting in more stable control.

[0039] Reference Appendix Figure 8 The fourth embodiment and the appendix Figure 9 In the fifth embodiment, the traction wires 3 on the first rotor 5 and the second rotor 6 are wound in the same direction. At this time, the transmission rod 4 is connected to the steering mechanism. The steering mechanism controls the two transmission rods 4 to move in different directions, thereby driving the first rotor 5 and the second rotor 6 to rotate in different directions, so that the two traction wires 3 move in opposite directions.

[0040] Specifically, the steering mechanism includes an input gear 9 connected to the operating lever 2. The operating lever 2 drives the input gear 9 to rotate. In the fourth embodiment, the input gear 9 is located at the upper end of the operating lever 2 and is horizontally arranged. Gears are arranged on the inner sides of the two transmission rods 4, which are located on the left and right sides of the input gear 9. In the fifth embodiment, the input gear 9 is located on the operating lever 2 and is vertically arranged. The two transmission rods 4 are located on the upper and lower sides of the input gear 9.

[0041] Two transmission rods 4 are symmetrically arranged on both sides of the input gear 9. Each transmission rod 4 meshes with the input gear 9, and the operating lever 2 controls the two transmission rods 4 to move in opposite directions. The operating lever 2 and the transmission rods 4 are connected by gear meshing, ensuring a stable connection and fixed stroke, resulting in more stable and comfortable operation and a better feel for using the endoscope. The reverse movement is achieved through the input gear 9. The steering mechanism has a simple structure, fewer parts, and the entire control mechanism is quick and easy to install, occupying less space and allowing for a smaller handle for easier gripping and operation.

[0042] The above is a detailed description of the preferred embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. Other embodiments that can be obtained are all within the protection scope of the present utility model.

Claims

1. A control mechanism for an endoscope handle, comprising a housing (1), wherein at least one set of control components is disposed within the housing (1), characterized in that: The control component includes The input component includes an operating lever (2) disposed inside the housing (1), with the operating end of the operating lever (2) located outside the housing (1); The output component includes two traction wires (3). The transmission assembly includes two transmission rods (4), which extend along the length of the housing (1) and are disposed inside the housing (1). The rear ends of the two transmission rods (4) are connected to the operating rod (2), and two traction wires (3) are respectively fixed to the front ends of the two transmission rods (4). A steering mechanism is provided between the transmission rods (4) and the operating rod (2) or the traction wires (3), and the steering mechanism causes the transmission rods (4) to drive the traction wires (3) to move in the opposite direction.

2. The control mechanism for the endoscope handle according to claim 1, characterized in that: The steering mechanism includes a first rotor (5) and a second rotor (6). The first rotor (5) and the second rotor (6) are rotatably disposed in the housing (1). Two traction wires (3) are wound in opposite directions on the first rotor (5) and the second rotor (6). The front end of the transmission rod (4) is connected to the first rotor (5) and the second rotor (6). The transmission rod (4) drives the first rotor (5) and the second rotor (6) to rotate in the same direction at the same time. One traction wire (3) is wound back and shortened while the other traction wire (3) is stretched in the opposite direction.

3. The control mechanism for the endoscope handle according to claim 2, characterized in that: Two transmission rods (4) are hinged to the first rotor (5) and the second rotor (6) respectively. The back-and-forth movement of the transmission rods (4) drives the first rotor (5) and the second rotor (6) to rotate simultaneously.

4. The control mechanism for the endoscope handle according to claim 1, characterized in that: The transmission assembly includes a first rotor (5) and a second rotor (6). The first rotor (5) and the second rotor (6) are rotatably disposed in the housing (1). Two traction wires (3) are wound in the same direction on the first rotor (5) and the second rotor (6). The front end of the transmission rod (4) is connected to the first rotor (5) and the second rotor (6). The rear end of the transmission rod (4) is connected to the steering mechanism to drive the two transmission rods (4) to move in opposite directions.

5. The control mechanism for the endoscope handle according to claim 2, characterized in that: The transmission assembly includes a third gear (10), the first rotor (5) and the second rotor (6) are fixed on both sides of the third gear (10), and the front end of the transmission rod (4) is meshed with the third gear (10).

6. The control mechanism for the endoscope handle according to claim 2 or 4, characterized in that: The steering mechanism also includes a first gear (7) and a second gear (8). The first rotor (5) and the second rotor (6) are respectively fixed on the first gear (7) and the second gear (8). The first gear (7) and the second gear (8) are respectively meshed with two transmission rods (4). The transmission rods (4) move back and forth, driving the first gear (7) and the second gear (8) to rotate.

7. The control mechanism for the endoscope handle according to claim 1, characterized in that: The steering mechanism includes an input gear (9) connected to the operating lever (2). The operating lever (2) drives the input gear (9) to rotate. Two transmission rods (4) are symmetrically arranged on both sides of the input gear (9). The two transmission rods (4) mesh with the input gear (9) respectively. The operating lever (2) controls the movement of the two transmission rods (4).

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