Control mechanism of endoscope

Abstract

The utility model discloses a control mechanism of an endoscope, which comprises a shell, at least one group of control components are arranged in the shell, an input component comprises an operating part arranged in the shell, and an operating end of the operating part is positioned outside the shell; the output assembly comprises two traction wires; the installation rotor comprises a first rotor and a second rotor, the two traction wires are connected with the first rotor and the second rotor respectively, the transmission assembly comprises a transmission rod, the transmission rod extends in the length direction of the handle and is arranged in the shell, and the rear end of the transmission rod is connected with the operation piece. And the front end of the transmission rod is connected with the first rotor and the second rotor. The transmission rod is used for transmitting the force of the operation piece to the traction wire, the transmission rod controls the installation rotor to rotate so as to control the movement of the traction wire, the transmission efficiency of keeping the force of the control assembly in the handle is improved, the force used for handle operation can be reduced, and the endoscope is more labor-saving in use.

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. Background Technology

[0002] An endoscope is a medical device that enters the body through natural passages to perform diagnostic or therapeutic procedures. 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 component connected to the base of the insertion section. The operating component includes controls and knobs mounted on a handle. A transmission mechanism is located within the handle, transmitting the driving force received by the operating component to the insertion section, thereby driving the movable portion 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 with high transmission efficiency and less effort to operate.

[0005] A control mechanism for an endoscope is provided, including a housing. At least one set of control components is disposed within the housing. Each control component includes an input component, an output component, a mounting rotor, and a transmission component. The input component includes an operating element disposed within the housing, with its operating end located outside the housing. The output component includes two traction wires. The mounting rotor is rotatably disposed within a handle and includes a first rotor and a second rotor. The two traction wires are respectively wound around the first and second rotors. The transmission component includes a transmission rod extending along the length of the handle within the housing. The rear end of the transmission rod is connected to the operating element, and the front end of the transmission rod is connected to the first and second rotors, driving the first and second rotors to rotate, causing one traction wire to extend while the other traction wire retracts and shortens.

[0006] The control mechanism of the endoscope described above has at least the following beneficial effects: the transmission rod inside the housing transmits the force of the operating component to the traction wire, the transmission rod controls the rotation of the mounting rotor to control the movement of the traction wire, improves the efficiency of force transmission of the control components inside the handle, reduces the force required to operate the handle, and makes the use of the endoscope more effortless.

[0007] In some embodiments of the control mechanism of the aforementioned endoscope, two traction wires are wound in opposite directions around a first rotor and a second rotor. The front end of the transmission rod is connected to the first rotor and the second rotor, driving the first rotor and the second rotor to move simultaneously in the same direction. Because the winding directions are opposite, the rotation directions of the traction wires are opposite when the two rotors move in the same direction; one rewinds while the other winds up, achieving the effect of one side of the control component extending while the other side shortens. The control component has a simple structure, is easy and quick to install, and the traction wires are kept taut by the rotors, resulting in better control.

[0008] In some embodiments of the control mechanism of the aforementioned endoscope, two traction wires are wound in the same direction around a first rotor and a second rotor. The transmission rod is connected to the first rotor and the second rotor via a steering mechanism, driving the first rotor and the second rotor to move in opposite directions simultaneously. By changing the direction of movement of the rotors through the steering mechanism, the traction wires rotate in opposite directions when the two rotors move in opposite directions; one rewinds while the other winds up, achieving the effect of one side of the control component extending while the other side shortens. The control component has a simple structure, is easy and quick to install, and the traction wires are kept taut by the rotors, resulting in better control.

[0009] In some embodiments of the control mechanism of the aforementioned endoscope, a first gear and a second gear are connected to the front end of the transmission rod. The first rotor and the second rotor are respectively connected to the first gear and the second gear, and the transmission rod is connected to the first gear and the second gear. The transmission rod meshes with the first gear and the second gear, driving the first rotor and the second rotor to move. The gear movement occupies little space, which is suitable for the miniaturization design of the handle. Moreover, the gear meshing transmission efficiency is high, which can reduce the force required for operation.

[0010] In some embodiments of the control mechanism of the aforementioned endoscope, the front end of the transmission rod meshes with a third gear, and the first and second rotors are fixed on both sides of the third gear, rotating in the same direction as 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 the transmission efficiency of the transmission rod meshing with the gear is high, making the operation of the handle more convenient and effortless.

[0011] In some embodiments of the control mechanism of the aforementioned endoscope, the steering mechanism includes a first gear and a second gear connected to the front end of a transmission rod. The first rotor and the second rotor are respectively connected to the first gear and the second gear, and the front end of the transmission rod is connected to either the first gear or the second gear. The transmission rod drives one of the first gear or the second gear to rotate, and the other gear meshes with it. During rotation, the two gears rotate in opposite directions, controlling the first rotor and the second rotor, which are wound in the same direction, to rotate in opposite directions, thus achieving the reverse movement of the traction wire. The steering mechanism is simple to install, occupies little space, reduces the size of the handle, and facilitates handle assembly.

[0012] In some embodiments of the control mechanism of the aforementioned endoscope, the rear end of the transmission rod is provided with teeth, and the lower end of the operating component is provided with a drive gear, which meshes with the teeth at the rear end of the transmission rod. The transmission rod and the operating component drive the transmission rod to move through the meshing of the teeth. The assembly of the operating component and the transmission rod is simple, and the gear meshing transmission efficiency is high, reducing the force required to move the operating component and facilitating handle operation. 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 first embodiment of the present invention;

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

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

[0019] Figure 6 This is a front 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 front view of the control component according to the fourth embodiment of the present invention. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] Reference Figures 1 to 8 An endoscope control mechanism includes a housing 1, within which at least one set of control components is disposed. 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.

[0025] The input component includes an operating element 2 disposed within the housing 1, with the operating end of the operating element 2 located outside the housing 1. The operator holds the housing 1 and manipulates the operating end of the operating element 2 to move it. The output component includes two traction wires 3, which are respectively fixed to the curved tube of the insertion part. The two traction wires 3 are located on both sides of the curved tube. Through the opposite movement of the two traction wires 3, one side of the curved tube extends while the other side contracts, thus completing the movement of the curved tube. A rotatable mounting rotor is disposed within the handle. The mounting rotor includes a first rotor 4 and a second rotor 5. The two traction wires 3 are respectively wound around the first rotor 4 and the second rotor 5. Through the rotation of the first rotor 4 and the second rotor 5, the wound traction wires 3 are rewinded or unwound, causing the traction wires 3 to extend or retract and shorten.

[0026] The transmission assembly includes a transmission rod 6, which extends along the length of the handle and is disposed within the housing 1. Depending on the shape of the housing 1, the transmission rod 6 can be configured to match the shape of the housing 1. For example, if the housing 1 is arc-shaped or curved, the transmission rod 6 can be configured as an arc-shaped rod, a curved rod, or other irregularly shaped structure. The transmission rod 6 also facilitates 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 end of the transmission rod 6 is connected to the operating component 2, and the front end of the transmission rod 6 is connected to the first rotor 4 and the second rotor 5, driving the first rotor 4 and the second rotor 5 to rotate. By controlling the rotation direction of the mounting rotors or the traction wire, one traction wire 3 is released and extended while the other traction wire 3 is retracted and shortened, completing the bending or twisting of the insertion part.

[0027] Within the housing 1, a transmission rod 6 transmits the force received by the operating component 2 to the traction wire 3. The transmission rod 6 controls the rotation of the mounting rotor, thereby controlling the movement of the traction wire 3. Both the transmission rod 6 and the mounting rotor are rigid structures, and their connection within the handle is reliable. This improves the efficiency of force transmission within the control components of the handle, reduces the force required to operate the handle, and makes the use of the endoscope more effortless.

[0028] To enable the traction wires 3 to move in opposite directions simultaneously, this is achieved by reversing the rotation of the traction wires 3. Specifically, two traction wires 3 can be wound in opposite directions around the first rotor 4 and the second rotor 5. The front end of the transmission rod 6 is connected to the first rotor 4 and the second rotor 5, driving the first rotor 4 and the second rotor 5 to move simultaneously in the same direction. Because the winding directions are opposite, the rotation directions of the traction wires 3 are opposite when the two rotors move in the same direction; one rewinds while the other winds up, achieving elongation on one side of the insertion part while shortening on the other. Reversal is achieved through the connection structure between the traction wires 3 and the mounting rotor, without adding any extra parts. The entire control assembly has a simple structure, is easy and quick to install, and the traction wires 3 can maintain tension through the mounting rotor, resulting in a greater traction force on the insertion part and a better control effect.

[0029] The transmission rod 6 drives the first rotor 4 and the second rotor 5 to rotate. In some embodiments, the front end of the transmission rod 6 is connected to a first gear 7 and a second gear 8. The first rotor 4 and the second rotor 5 are respectively connected to the first gear 7 and the second gear 8. The transmission rod 6 is connected to the first gear 7 and the second gear 8, and the first gear 7 and the second gear 8 rotate in the same direction. The transmission rod 6 meshes with the first gear 7 and the second gear 8, driving the first rotor 4 and the second rotor 5 to move. The gear movement occupies little space, which is suitable for the miniaturization design of the handle. Moreover, the gear meshing transmission has high efficiency and reliable connection, which can reduce the force of operation and provide a smoother operating experience.

[0030] Reference Attachment Figure 1 To be continued Figure 3In the first embodiment, the front and rear ends of the transmission rod 6 are provided with teeth. The front end of the transmission rod 6 meshes with the second gear 8. A transmission gear 10 is provided between the first gear 7 and the second gear 8. The movement of the transmission rod 6 drives the second gear 8 to move. The transmission gear 10 connects to the first gear, causing the first gear 7 and the second gear 8 to rotate in the same direction, so that the first rotor 4 and the second rotor 5 rotate simultaneously in the same direction. In addition to providing one transmission gear 10, an odd number of transmission gears can also be provided between the first gear 7 and the second gear 8, depending on the handle structure and transmission requirements.

[0031] In other embodiments, the front end of the transmission rod 6 meshes with the third gear 9, and the first rotor 4 and the second rotor 5 are fixed on both sides of the third gear 9, rotating in the same direction as the third gear 9. The third gear 9 drives the first rotor 4 and the second rotor 5 to rotate simultaneously. The transmission assembly has fewer parts, is easy to install, and the transmission efficiency of the transmission rod 6 meshing with the gear is high, making the operation of the handle more convenient and effortless.

[0032] For details, please refer to the appendix. Figure 4 and attached Figure 5 In the second embodiment, the front and rear ends of the transmission rod 6 are provided with teeth. The front end of the transmission rod 6 meshes with the third gear 9. A first rotor 4 and a second rotor 5 are provided on the left and right sides of the third gear 9. When the third gear 9 rotates, the first rotor 4 and the second rotor 5 rotate simultaneously and in the same direction with the third gear 9. The third gear 9 and the mounting rotor are fixedly connected, which reduces the assembly of the third gear 9 and the mounting rotor. Moreover, when the first rotor 4 and the second rotor 5 are fixed on both sides of the third gear 9, the rotation speed of the first rotor 4 and the second rotor 5 is the same. Therefore, the release and retraction distances of the two traction wires 3 are also the same, so that the force on both sides of the transmission assembly is the same, and it is not easy for unilateral bending to occur.

[0033] In some embodiments, the front end of the transmission rod 6 is hinged to the first rotor 4 and the second rotor 5, and the rear end of the transmission rod 6 is hinged to the lower end of the operating member 2. When the operating member 2 moves back and forth, it drives the rear end of the transmission rod 6 to move, thereby enabling the front end of the transmission rod 6 to drive the first rotor or the second rotor 5 to rotate.

[0034] For details, please refer to the appendix. Figure 6 and attached Figure 7 In the third embodiment, the first rotor 4 and the second rotor 5 are rotatably connected to the housing 1. The first rotor 4 and the second rotor 5 are located on both sides of the transmission rod 6, and the front end of the transmission rod 6 is hinged to the two rotors.

[0035] To achieve a larger rotation radius, the connecting shaft 11 between the first rotor 4 and the second rotor 5 and the housing 1, and the hinge shaft 12 with the transmission rod 6, are both located at the edge of the rotor, and the connecting shaft 11 and the hinge shaft 12 are symmetrically arranged around the center of the rotor. The increased rotation radius results in a larger circumference of the rotor's motion, which in turn increases the 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 torsional angle.

[0036] To achieve simultaneous reverse movement of the traction wire 3, it can be wound in the same direction around the first rotor 4 and the second rotor 5. Then, the transmission rod 6 is connected to the first rotor 4 and the second rotor 5 via a steering mechanism, driving them to move simultaneously in opposite directions. By changing the direction of movement of the rotors through the steering mechanism, the traction wire 3 rotates in opposite directions when the two rotors move in opposite directions; one rewinds while the other winds up. This allows one side of the control component to extend while the other shortens. The control component has a simple structure, is easy and quick to install, and the traction wire 3 is kept taut by the rotors, resulting in better control.

[0037] The steering mechanism includes a first gear 7 and a second gear 8 connected to the front end of the transmission rod 6. The first rotor 4 and the second rotor 5 are respectively connected to the first gear 7 and the second gear 8. The front end of the transmission rod 6 is connected to either the first gear 7 or the second gear 8. The transmission rod 6 drives one of the first gear 7 or the second gear 8 to rotate, and the other gear meshes with it. When rotating, the two gears rotate in opposite directions, which can control the first rotor 4 and the second rotor 5, which are wound in the same direction, to rotate in opposite directions, thereby realizing the reverse movement of the traction wire 3. The steering mechanism is simple to install, occupies little space, and can reduce the size of the handle, making it convenient for handle assembly.

[0038] Reference Attachment Figure 8 In the fourth embodiment, the front end of the transmission rod 6 is provided with teeth. The transmission rod 6 is connected to the first gear 7, the first gear 7 is connected to the second gear 8, the first gear 7 and the second gear 8 mesh with each other, and when the transmission rod 6 moves, the rotation directions of the first gear 7 and the second gear 8 are opposite. The traction wires 3 wound in the same direction on the first rotor 4 and the second rotor 5 rotate in opposite directions, so that one traction wire 3 retracts while the other traction wire 3 extends.

[0039] According to the above embodiments, when the front end of the transmission rod 6 meshes with the gear, preferably, the rear end of the transmission rod 6 also has teeth, and the lower end of the operating member 2 is provided with a drive gear 201, which meshes with the teeth at the rear end of the transmission rod 6. The transmission rod 6 and the operating member 2 drive the transmission rod 6 to move through the meshing of the teeth. The assembly of the operating member 2 and the transmission rod 6 is simple, and the gear meshing transmission efficiency is high, reducing the force required to move the operating member and facilitating handle operation.

[0040] 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, 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 element (2) disposed inside the housing (1), with the operating end of the operating element (2) located outside the housing (1); The output component includes two traction wires (3). The mounting rotor is rotatably disposed in the handle. The mounting rotor includes a first rotor (4) and a second rotor (5), and two traction wires (3) are respectively wrapped around the first rotor (4) and the second rotor (5). The transmission assembly includes a transmission rod (6) which extends along the length of the handle and is disposed in the housing (1). The rear end of the transmission rod (6) is connected to the operating member (2), and the front end of the transmission rod (6) is connected to the first rotor (4) and the second rotor (5), thereby driving the first rotor (4) and the second rotor (5) to rotate, so that one traction wire (3) is released and extended while the other traction wire (3) is retracted and shortened.

2. The control mechanism of the endoscope according to claim 1, characterized in that: Two traction wires (3) are wound in opposite directions around the first rotor (4) and the second rotor (5). The front end of the transmission rod (6) is connected to the first rotor (4) and the second rotor (5) to drive the first rotor (4) and the second rotor (5) to move in the same direction at the same time.

3. The control mechanism of the endoscope according to claim 1, characterized in that: Two traction wires (3) are wound in the same direction on the first rotor (4) and the second rotor (5). The transmission rod (6) is connected to the first rotor (4) and the second rotor (5) through a steering mechanism, which drives the first rotor (4) and the second rotor (5) to move in opposite directions at the same time.

4. The control mechanism of the endoscope according to claim 2, characterized in that: The transmission rod (6) is connected to a first gear (7) and a second gear (8) at its front end. The first rotor (4) and the second rotor (5) are connected to the first gear (7) and the second gear (8) respectively. The transmission rod (6) is connected to the first gear (7) and the second gear (8).

5. The control mechanism for the endoscope according to claim 2, characterized in that: The front end of the transmission rod (6) meshes with the third gear (9), and the first rotor (4) and the second rotor (5) are fixed on both sides of the third gear (9). The rotors rotate in the same direction as the third gear (9).

6. The control mechanism for the endoscope according to claim 3, characterized in that: The steering mechanism includes a first gear (7) and a second gear (8) connected to the front end of the transmission rod (6), the first rotor (4) and the second rotor (5) are respectively connected to the first gear (7) and the second gear (8), and the front end of the transmission rod (6) is connected to the first gear (7) or the second gear (8).

7. The control mechanism of the endoscope according to claim 1, characterized in that: The rear end of the transmission rod (6) is provided with teeth, and the lower end of the operating member (2) is provided with a drive gear (201), which meshes with the teeth at the rear end of the transmission rod (6).

Images