Endoscope handle structure

Abstract

The present invention discloses an endoscope handle structure, including a shell, an operating mechanism and a transmission mechanism, wherein the front end of the shell is a mounting portion, and the rear end is a gripping portion, the gripping portion is arranged obliquely relative to the mounting portion, and an operating mechanism is arranged on the gripping portion, and the operating mechanism includes an operating member and a driving member connected to each other. The transmission mechanism includes at least one rigid transmission member, the rear end of the rigid transmission member is connected to the driving member of the operating mechanism, the front end of the rigid transmission member is connected to two traction wires, and the rigid transmission member drives the two traction wires to move in opposite directions to each other. The control force applied to the operating mechanism is transmitted to the traction wire through the rigid transmission member, the distance of the traction wire in the handle is reduced, the bending and deviation of the traction wire are avoided, the transmission efficiency of the transmission mechanism is increased, the loss of operating force is reduced, the force required to operate the bending of the endoscope insertion portion is reduced, the sense of operation is improved, and it is convenient for users to use the endoscope handle for a long time.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and in particular to an endoscope handle structure. Background Art

[0002] An endoscope is a medical device that enters the body through a natural channel to perform inspection or treatment. In recent years, endoscopes have been widely used in the medical field. The endoscope has an insertion portion that is inserted into the patient's body cavity and an operating portion that is connected to the base end of the insertion portion. The operating portion includes an operating rod and an operating knob set on the handle. The handle is provided with a transmission mechanism, which transmits the driving force received by the operating portion to the insertion portion, thereby driving the front movable portion of the insertion portion for remote operation.

[0003] The traditional transmission mechanism includes a traction wire connected to the operating part. The rotation of the operating part drives the traction wire to pull back and forth for traction. However, the traction wire is a flexible structure. When the traction wire is not in a stretched state, power cannot be transmitted. When the traction wire is long in the handle, a tensioning device needs to be provided to keep the traction wire in tension, which makes the transmission mechanism structure more complicated. Moreover, when there is an angle difference at the connection between the transmission mechanism in the handle and the insertion part, the traction wire will bend. Since other components such as a negative pressure suction pipe are also provided in the handle, according to the internal structure design requirements, when the length of the traction wire becomes longer, the traction wire will deviate in both the horizontal and vertical directions, resulting in a loss of the tension. The bending and deviation of the traction wire will increase the transmission loss, resulting in greater effort required to control the movement of the traction wire, making the operation of the endoscope laborious and reducing the sense of use during operation. Summary of the invention

[0004] In order to overcome at least one of the technical problems of the above-mentioned prior art, the present invention provides an endoscope handle structure with an optimized control structure, which utilizes rigid parts to transmit power in the handle, improves transmission efficiency, reduces the force required for handle operation, and improves the user control experience.

[0005] An endoscope handle structure is provided, comprising a housing, an operating mechanism and at least one transmission mechanism, wherein the front end of the housing is a mounting portion, the rear end of the housing is a gripping portion, the gripping portion is arranged obliquely relative to the mounting portion, an operating mechanism is arranged on the gripping portion, the operating mechanism comprises an operating member and a driving member connected to each other, and the operating member is located outside the housing. The transmission mechanism comprises at least one rigid transmission member, the rear end of the rigid transmission member is connected to the driving member of the operating mechanism, the front end of the rigid transmission member is connected to two traction wires, and the rigid transmission member drives the two traction wires to move in opposite directions to each other.

[0006] The above-mentioned endoscope handle structure has at least the following beneficial effects: due to the inclined design of the gripping part in the handle housing, the control force on the operating mechanism is transmitted to the traction wire through the rigid transmission member in the housing, reducing the distance of the traction wire in the handle, avoiding the bending and deviation of the traction wire, and improving the transmission efficiency of the traction wire. Since the rigid transmission member is a rigid structure, the transmission efficiency between the operating mechanism and the traction wire in this part of the handle housing becomes larger, reducing the loss of operating force. The force required to operate the bending of the endoscope insertion part is reduced, the control feeling is improved, and it is convenient for users to use the endoscope handle for a long time.

[0007] In some embodiments of the above-mentioned endoscope handle structure, a rotatable wheel device is provided in the mounting portion of the shell, the end of the traction wire is wound and fixed on the wheel device, the front end of the rigid transmission member is connected to the wheel device, and the rigid transmission member drives the wheel device to rotate. The traction wire is fixed by the wheel device so that the traction wire rotates with the wheel device, which not only plays the role of tensioning the traction wire, but also ensures that the movement direction of the traction wire is consistent. The pulling force of the traction wire is consistent with the direction of the insertion part of the front end of the handle, providing a more stable and greater pulling force to the insertion part. In addition, the wheel device is arranged in the mounting portion, which reduces the length of the traction wire in the handle. The handle is connected and transmitted by a rigid transmission member inside. The rigid transmission member has a fixed structure, which can simplify the structural design in the handle and improve the transmission efficiency in the handle.

[0008] In some embodiments of the above-mentioned endoscope handle structure, two traction wires are respectively wound on the rotating wheel device in opposite directions, and the rigid transmission member drives the rotating wheel device to rotate in the same direction. The front ends of the two traction wires are respectively fixed on both sides of the end of the bending tube connected to the handle. When the rotating wheel device rotates, since the winding directions of the traction wires are opposite, one traction wire is rewound and shortened, and the other traction wire is unwound and extended, so that the bending tube bends or twists toward the shortened side. The traction wires simultaneously achieve fixed connection and reverse movement. The transmission mechanism has no additional parts, is simple and easy to install, and can also reduce the size of the handle, making it easier to hold the handle.

[0009] In some embodiments of the above-mentioned endoscope handle structure, the rotating wheel device includes at least two rotating wheels, two traction wires are respectively wound on a rotating wheel in the same direction, and the rigid transmission member drives the rotating wheels to rotate in opposite directions through a steering mechanism. The front ends of the two traction wires are respectively fixed on both sides of the end of the bending tube connected to the handle. When the rotating wheel device rotates, after passing through the steering mechanism, the rotating wheels wound with the traction wires move in opposite directions, so one traction wire is rewound and shortened, and the other traction wire is unwound and extended, so that the bending tube bends or twists toward the shortened side. The traction wires simultaneously achieve fixed connection and reverse movement, and the traction wires are easy to install.

[0010] In some embodiments of the above-mentioned endoscope handle structure, the rotating wheel device is connected to a gear device, and the rigid transmission member is meshed with the gear device to drive the rotating wheel device to rotate. The rigid transmission member and the rotating wheel device are connected and transmitted through the gear device, and the gear transmission efficiency is high. In addition, the gear structure is easy to install and occupies a small space, which is suitable for internal setting and use of the handle, and is convenient to reduce the volume and weight of the handle.

[0011] In some embodiments of the above-mentioned endoscope handle structure, the driving member includes a driving gear, and the driving gear is meshed with the rigid transmission member. The driving gear and the rigid transmission member are driven by gears, and the transmission is stable and efficient, and the structure is compact, which can reduce the occupied volume and facilitate the reduction of the volume and weight of the handle.

[0012] In some embodiments of the above-mentioned endoscope handle structure, the rigid transmission member includes a transmission rod, the shape of the transmission rod is consistent with the shape of the gripping portion, and the transmission rod is extended and arranged in the housing. The transmission rod is suitable for transmission of handles of different shapes. By keeping the shape of the transmission rod consistent with that of the gripping portion, the transmission rod can be accommodated in the gripping portion for movement, which is suitable for use with non-linear handles. In addition, the transmission rod has a simple structure, is easy to process and install, and improves assembly efficiency.

[0013] In some embodiments of the above-mentioned endoscope handle structure, the rear end of the transmission rod is hinged to the operating member, and the front end of the transmission rod is connected to the traction wire. The movement of the operating member drives the transmission rod to move, so that the front end of the transmission rod moves forward and backward, thereby driving the traction wire at the front end of the transmission rod to move. The structure is simple, the parts are few and easy to assemble, the volume of the transmission mechanism is reduced, and the weight of the handle is reduced.

[0014] In some embodiments of the above endoscope handle structure, the driving member includes a driving gear, and the driving gear is meshed with the rigid transmission member. The transmission between the gears is smooth, the transmission efficiency is high, and the range of movement required is small, which is suitable for transmission in the handle.

[0015] In some embodiments of the above-mentioned endoscope handle structure, the driving member further comprises a motor, the driving gear is arranged at the output end of the motor, and the operating member is an electric control switch, and the electric control switch is electrically connected to the motor. By controlling the movement of the transmission mechanism by the motor, the force required for manipulation can be reduced, making the operation more labor-saving.

[0016] In some embodiments of the above-mentioned endoscope handle structure, the mounting portion is provided with a connection hole for mounting the insertion portion, and when the traction wire is rotated out along the tangent direction of the rotating wheel device, the traction wire is located within the circumference of the connection hole. Ensuring that the traction wire is in a straight line tension state from the rotating wheel device to the insertion portion can reduce the power loss on the traction wire and improve the operation feeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief description of the drawings required for describing the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work:

[0018] Figure 1 It is a structural schematic diagram of the first embodiment of the present invention;

[0019] Figure 2 The internal structure of the first embodiment of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 3 The internal structure of the first embodiment of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 4 It is a front view of the transmission mechanism of the second embodiment of the present invention;

[0022] Figure 5 is a top view of a transmission mechanism according to a second embodiment of the present invention;

[0023] Figure 6 It is a front view of the transmission mechanism of the third embodiment of the present invention;

[0024] Figure 7 It is a front view of the transmission mechanism of the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Reference Figures 1 to 7 , provides an endoscope handle structure, including a shell 1, an operating mechanism and at least one set of transmission mechanisms, the endoscope handle is connected to the insertion part, and a set of transmission mechanisms controls the insertion part to bend or twist in one direction. When multi-directional bending or twisting is required, multiple sets of transmission mechanisms are arranged in the shell 1 for direction control.

[0028] The front end of the shell 1 is a mounting portion 101, and the rear end of the shell 1 is a holding portion 102. The holding portion 102 is tilted relative to the mounting portion 101. An operating mechanism is provided on the holding portion 102. The operating mechanism includes an operating member 2 and a driving member 3 that are connected to each other. The operating member 2 is located outside the shell 1.

[0029] The gripping portion 102 may be a curved structure, a bent line structure, or other shapes not shown, and there is an inflection point at the connection between the mounting portion 101 and the gripping portion 102. In the prior art handle, the traction wire 5 may be bent at the connection between the mounting portion 101 and the gripping portion 102, which reduces the transmission efficiency of the traction wire 5.

[0030] The transmission mechanism includes at least one rigid transmission member 4, the rear end of which is connected to the driving member 3 of the operating mechanism, and the front end of which is connected to two traction wires 5, and the rigid transmission member 4 drives the two traction wires 5 to move in opposite directions. The traction wires 5 are fixed to the end of the bending tube of the insertion part, and the two traction wires 5 are located on both sides of the bending tube. Through the reverse movement of the two traction wires 5, one side of the bending tube is extended and the other side is contracted, and the bending or twisting movement of the bending tube toward the contracted side is achieved.

[0031] When the gripping portion 102 of the handle housing 1 is tilted, the control force on the operating mechanism is transmitted to the traction wire 5 through the rigid transmission member 4 in the housing 1, thereby reducing the distance of the traction wire 5 in the handle, avoiding the bending and deviation of the traction wire 5, and improving the transmission efficiency of the traction wire 5. Since the rigid transmission member 4 is a rigid structure, compared with the flexible structure of the traction wire 5, the transmission efficiency is increased and the loss of the control force in the transmission mechanism is reduced. This reduces the force required to operate the bending of the endoscope insertion portion, improves the sense of control, and facilitates the user to use the endoscope handle for a long time.

[0032] In order to facilitate the fixing and installation of the traction wire 5, a rotatable wheel device is arranged in the mounting portion 101 of the housing 1, the end of the traction wire 5 is wound and fixed on the wheel device, the front end of the rigid transmission member 4 is connected to the wheel device, and the rigid transmission member 4 drives the wheel device to rotate. The traction wire is fixed by the wheel device, so that the traction wire 5 rotates with the wheel device, which not only plays the role of tensioning the traction wire 5, but also ensures that the movement direction of the traction wire 5 is consistent during the control process, so that the pulling force provided by the traction wire 5 is consistent, providing a more stable pulling force to the insertion part. In addition, the wheel device is arranged in the mounting portion, which reduces the length of the traction wire 5 in the handle, and the rigid transmission member 4 is connected and transmitted inside the handle. The rigid transmission member 4 is fixed in structure, which can simplify the structural design in the handle, improve the transmission efficiency in the handle, and provide a greater pulling force to the insertion part, reduce the burden of operation, and improve the sense of use.

[0033] In addition, the mounting portion 101 is provided with a connection hole for mounting the insertion portion. When the traction wire 5 is wound on the rotating wheel device, the end of the traction wire 5 will rotate out along the tangent direction of the rotating wheel device and extend into the insertion portion, and the position of the traction wire 5 when extended is located within the circumference of the connection hole. This ensures that the traction wire 5 can maintain a linear tension state from the rotating wheel device to the insertion portion, reduces the power loss on the traction wire 5, maintains the pulling force provided by the rotating wheel device to the traction wire 5, and further improves the operating feel.

[0034] In order to realize that the two traction wires 5 in a transmission mechanism rotate in different directions, the two traction wires 5 are respectively wound on the rotating wheel device in opposite directions, and the rigid transmission member 4 drives the rotating wheel device to rotate in the same direction. The front ends of the two traction wires 5 are respectively fixed on both sides of the end of the bending tube connected to the handle. When the rotating wheel device rotates, since the winding directions of the traction wires 5 are opposite, one traction wire 5 is rewound and shortened, and the other traction wire 5 is unwound and extended, so that the bending tube bends or twists toward the shortened side. The reverse winding structure of the traction wire 5 simultaneously realizes the two functions of fixed connection and mutual reverse movement. At this time, the transmission mechanism has no additional parts, is simple and easy to install, and can also reduce the volume of the handle, making it convenient to hold the handle.

[0035] Furthermore, the rotating wheel device can also be connected to a gear device, and the rigid transmission member 4 is meshed with the gear device to drive the rotating wheel device to rotate. The rigid transmission member 4 and the rotating wheel device are connected and transmitted through the gear device, and the gear transmission efficiency is high. In addition, the gear structure is easy to install and occupies a small space, which is suitable for the internal setting and use of the handle, and is convenient to reduce the volume and weight of the handle.

[0036] Taking advantage of the gear transmission, the driving member includes a driving gear, which is meshed with the rigid transmission member 4. The driving gear and the rigid transmission member 4 are driven by gears, which is stable and efficient, compact, and has a small range of movement, which can reduce the occupied volume, is suitable for transmission in the handle, and is convenient for reducing the volume and weight of the handle.

[0037] The rigid transmission member 4 includes a transmission rod, the shape of which is consistent with the shape of the grip portion 102, and the transmission rod is extended and arranged in the housing 1. The transmission rod is suitable for transmission of handles of different shapes. By keeping the shape of the transmission rod consistent with that of the grip portion, the transmission rod can be accommodated in the grip portion for movement, which is suitable for use with non-linear handles. In addition, the transmission rod has a simple structure, is easy to process and install, and improves assembly efficiency.

[0038] Refer to the attached Figure 1 To Attachment Figure 3 In the first embodiment, the gripping portion 102 of the housing 1 is curved, a rigid transmission member 4 is arranged in the gripping portion 102, the operating member 2 is a lever, the driving member 3 is a fan-shaped gear connected to the lever, the rotating wheel device comprises a first gear 8 meshed with the rigid transmission member 4, a third gear 10 meshed with the first gear 8, and a second gear 9 meshed with the third gear 10, the third gear 10 plays a transmission role between the first gear 8 and the second gear 9, the first gear 8 and the second gear 9 are respectively connected to the first rotating wheel 6 and the second rotating wheel 7, the first rotating wheel 6 and the second rotating wheel 7 rotate coaxially with the first gear 8 and the second gear 9. Two traction wires 5 are respectively wound around the first gear 8 and the second gear 9 in opposite directions, when the lever is toggled, the fan-shaped gear drives the rigid transmission member 4 to move, the rigid transmission member 4 drives the first gear 8 to rotate, thereby driving the second gear 9 to rotate in the same direction with the first gear 8, so that the first rotating wheel 6 and the second rotating wheel 7 rotate in the same direction. At this time, the reversely wound traction wires 5 move in opposite directions, so that one traction wire 5 is extended while the other traction wire 5 is shortened, thereby controlling the movement of the end of the insertion portion.

[0039] The rigid transmission member 4 in this embodiment adopts an arc-shaped transmission rod, which is extended in the gripping portion 102. The symmetry axis of the first gear 8 and the second gear 9 is coaxial with the connecting hole of the mounting portion 101. The traction wire 5 extends from the mounting portion 101 and penetrates into the insertion portion, thereby reducing the length of the traction wire 5 in the handle, improving the transmission efficiency of the handle, and providing a better operation and usage experience.

[0040] In some other embodiments, in addition to the gear meshing, the rear end of the transmission rod is hinged to the operating member 2, and the front end of the transmission rod is connected to the traction wire 5. The movement of the operating member 2 drives the transmission rod to move, so that the front end of the transmission rod moves forward and backward, thereby driving the traction wire at the front end of the transmission rod to move, with a simple structure, few parts, and easy assembly, which reduces the volume of the transmission mechanism and the weight of the handle.

[0041] Reference Figure 4 To Attachment Figure 5 In the second embodiment of the transmission mechanism, each transmission mechanism includes two rigid transmission members 4, which are transmission rods. The front ends of the two transmission rods are respectively hinged to the first rotating wheel 6 and the second rotating wheel 7, and the rear ends of the two transmission rods are simultaneously hinged to the operating member 2. The two traction wires 5 are reversely wound on the first rotating wheel 6 and the second rotating wheel 7. When the operating member 2 moves to drive the two transmission rods to rotate, the front ends of the two transmission rods simultaneously drive the first rotating wheel 6 and the second rotating wheel 7 to rotate in the same direction, so that one traction wire 5 is extended while the other traction wire 5 is shortened. The hinged structure can also realize transmission and reduce the parts of the transmission mechanism.

[0042] In another embodiment of the transmission mechanism, the rotating wheel device includes at least two rotating wheels 6, two traction wires 5 are respectively wound on one rotating wheel 6 in the same direction, and the rigid transmission member 4 drives the rotating wheels 6 to rotate in opposite directions through a steering mechanism. The front ends of the two traction wires 5 are respectively fixed on both sides of the ends of the bending tube connected to the handle. When the rotating wheel device rotates, after passing through the steering mechanism, the rotating wheels wound with the traction wires 5 move in opposite directions, so one traction wire 5 is rewound and shortened, and the other traction wire 5 is unwound and extended, so that the bending tube bends or twists toward the shortened side. The traction wires 5 simultaneously achieve fixed connection and reverse movement, and the traction wires are easy to install.

[0043] Similarly, the first rotating wheel 6 and the second rotating wheel 7 can also be connected with a gear device, and the rigid transmission member 4 is meshed with the gear device to drive the rotating wheel device to rotate. The gear structure is easy to install, occupies a small space, is suitable for internal setting and use of the handle, and is convenient for reducing the volume and weight of the handle.

[0044] Also taking advantage of the high transmission stability and efficiency of gear transmission and the small range of motion, the driving member may include a driving gear, which is meshed with the rigid transmission member 4. The driving gear and the rigid transmission member 4 are driven by gears, which can improve the transmission efficiency while reducing the occupied volume, and are suitable for transmission in the handle.

[0045] Refer to the attached Figure 6In the third embodiment, each transmission mechanism includes a rigid transmission member 4, the rigid transmission member 4 is a transmission rod, the operating member 2 is a lever, the driving member 3 is a fan-shaped gear connected to the lever, the rotating wheel device includes a first gear 8 meshing with the rigid transmission member 4, a second gear 9 meshing with the first gear 8, the first gear 8 and the second gear 9 are respectively connected to a first rotating wheel 6 and a second rotating wheel 7, the first rotating wheel 6 and the second rotating wheel 7 rotate coaxially with the first gear 8 and the second gear 9, and the first gear 8 and the second gear 9 mesh with each other to form a steering mechanism. Two traction wires 5 are respectively wound on the first gear 8 and the second gear 9 in the same direction. When the lever is moved, the fan-shaped gear drives the rigid transmission member 4 to move, and the rigid transmission member 4 drives the first gear 8 to rotate, thereby driving the second gear 9 to rotate in the opposite direction of the first gear 8, so that the first rotating wheel 6 and the second rotating wheel 7 rotate in opposite directions. At this time, the traction wires 5 wound in the same direction move in opposite directions, so that one traction wire 5 is extended while the other traction wire 5 is shortened, thereby controlling the movement of the end of the insertion part.

[0046] Also in the attached Figure 7 In the fourth embodiment, the operating member 2 is a lever, the driving member 3 is a driving gear connected to the lever, and the transmission mechanism includes two rigid transmission members, the rigid transmission member 4 is a transmission rod, and the rear ends of the two transmission rods are respectively arranged on the upper and lower sides of the driving gear and meshed with the driving gear. The rotating wheel device includes a first gear 8 and a second gear 9 respectively meshed with the two transmission rods, the first gear 8 is fixedly connected to the first rotating wheel 6, and the second gear 9 is fixedly connected to the second rotating wheel 7. The traction wire 5 is wound around the first rotating wheel 6 and the second rotating wheel 7 in the same direction. When the lever is moved, the driving gear is driven to rotate, so that the transmission rods on the upper and lower sides move in opposite directions, driving the first gear 8 and the second gear 9 to rotate in opposite directions. Thereby, one traction wire 5 is extended while the other traction wire 5 is shortened.

[0047] In an embodiment not shown, the driving member 3 further comprises a motor, the driving gear is arranged at the output end of the motor, and the operating member 2 is an electric control switch, which is electrically connected to the motor. By controlling the movement of the transmission mechanism through the motor, the force required for manipulation can be reduced, making the operation more labor-saving.

[0048] The above is a specific description of the preferred embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, technicians familiar with the field can make various equivalent modifications or substitutions without violating the spirit of the present invention. Other embodiments that can be obtained belong to the scope of protection of the present invention.

Claims

1. An endoscope handle structure, comprising a housing (1), the front end of the housing (1) being a mounting portion (101), the rear end of the housing (1) being a gripping portion (102), the gripping portion (102) being arranged obliquely relative to the mounting portion (101), and an inflection point being present at the connection between the mounting portion (101) and the gripping portion (102), characterized in that: Also includes A rotatable rotating wheel device, the rotating wheel device being arranged in a mounting portion (101) of the housing (1); An operating mechanism, the operating mechanism being arranged on the gripping portion (102), the operating mechanism comprising an operating member (2) and a driving member (3) connected to each other, the operating member (2) being located outside the housing (1); At least one transmission mechanism, each transmission mechanism comprises at least one rigid transmission member (4), the rear end of the rigid transmission member (4) is connected to the driving member (3) of the operating mechanism, the rigid transmission member (4) comprises a transmission rod, the transmission rod is extended and arranged in the holding portion (102), the front end of the rigid transmission member (4) is connected to the rotating wheel device, the end of the traction wire (5) is wound and fixed on the rotating wheel device, and the rigid transmission member (4) drives the rotating wheel device to rotate, so that the rigid transmission member (4) drives the two traction wires (5) to move in opposite directions to each other.

2. The endoscope handle structure according to claim 1, characterized in that: The two traction wires (5) are respectively wound around the rotating wheel device in opposite directions, and the rigid transmission member (4) drives the rotating wheel device to rotate in the same direction.

3. The endoscope handle structure according to claim 1, characterized in that: The wheel device comprises at least a first wheel (6) and a second wheel (7), two traction wires (5) are respectively wound around the first wheel (6) and the second wheel (7) in the same direction, and the rigid transmission member (4) drives the first wheel (6) and the second wheel (7) to rotate in opposite directions via a steering mechanism.

4. The endoscope handle structure according to claim 1, characterized in that: The rotating wheel device is connected to a gear device, and the rigid transmission member (4) meshes with the gear device to drive the rotating wheel device to rotate.

5. The endoscope handle structure according to claim 1, characterized in that: The shape of the transmission rod is consistent with the shape of the gripping portion (102).

6. The endoscope handle structure according to claim 5, characterized in that: The rear end of the transmission rod is hinged to the operating member (2), and the front end of the transmission rod is connected to the traction wire (5).

7. The endoscope handle structure according to claim 1 or 5, characterized in that: The driving member (3) comprises a driving gear, and the driving gear is meshed with a rigid transmission member (4).

8. The endoscope handle structure according to claim 7, characterized in that: The driving member (3) further comprises a motor, the driving gear is arranged at the output end of the motor, and the operating member (2) is an electric control switch, and the electric control switch is electrically connected to the motor.

9. The endoscope handle structure according to claim 1, characterized in that: The mounting portion (101) is provided with a connection hole for mounting the insertion portion, and when the traction wire (5) is rotated out along the tangential direction of the rotating wheel device, the traction wire (5) is located within the circumferential range of the connection hole.

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