Control handle for endoscope and endoscope

Abstract

The embodiments of this specification provide a control handle for an endoscope and an endoscope, the control handle comprising a handle housing and a bending control assembly disposed within the handle housing; the bending control assembly being used to control the bending of the endoscope's bending portion via a traction cable of the endoscope; the bending control assembly comprising a trigger, a driving gear disc, and a driven gear disc, one end of the trigger being connected to the driving gear disc, the trigger being rotationally connected to the handle housing; the driving gear disc being meshed with the driven gear disc; the driven gear disc being used to connect to the traction cable; wherein, when the trigger is pulled and rotated relative to the handle housing, the trigger drives the driving gear disc to rotate, thereby driving the driven gear disc to rotate. The endoscope comprises a bending portion, a traction cable, and the aforementioned control handle, the traction cable being connected between the bending portion and the driven gear disc of the bending control assembly of the control handle.

Description

Technical Field

[0001] This specification relates to the field of medical devices, and in particular to a control handle for an endoscope and an endoscope. Background Art

[0002] Endoscopes are primarily used in surgical procedures and routine medical examinations. Compared to traditional surgical procedures, the functional minimally invasive surgical technique of endoscopes has been widely accepted by both operators and patients. Endoscopes penetrate the human body through natural orifices or small holes created in the body. Once the endoscope lens is inserted, the operator, using other surgical instruments and imaging components, can perform internal examinations and surgical procedures from outside the body.

[0003] To expand the scope of observation and operation, endoscopes typically include a bending portion. This portion's bending and rotation changes the direction of surgical instruments and / or imaging components. Improving the feel and reducing operational difficulty of this bending portion remains a pressing technical challenge for endoscopes. Summary of the Invention

[0004] One of the embodiments of the present specification provides a control handle for an endoscope, which includes a handle shell and a bending control assembly arranged in the handle shell; the bending control assembly is used to control the bending of the bending portion of the endoscope through the traction rope of the endoscope; the bending control assembly includes a trigger, a driving gear disc and a driven gear disc, one end of the trigger is connected to the driving gear disc, and the trigger is rotatably connected to the handle shell; the driving gear disc is engaged with the driven gear disc; the driven gear disc is used to connect the traction rope; wherein, when the trigger is pulled and rotated relative to the handle shell, the trigger drives the driving gear disc to rotate, thereby driving the driven gear disc to rotate.

[0005] In some embodiments, the driving gear disc includes an arc-shaped structure, the inner arc surface of the arc-shaped structure is provided with driving teeth, the driven gear disc includes a gear meshing with the driving teeth and a driven disc fixed to the gear, and the driven disc rotates with the gear; the driven disc is used to connect the traction rope.

[0006] In some embodiments, the transmission ratio of the drive tooth to the gear is 2:1-4:1.

[0007] In some embodiments, the gear is a cylindrical gear, the driven plate is in the shape of a circular plate, and the driven plate is coaxially arranged with the cylindrical gear.

[0008] One embodiment of the present specification provides an endoscope, which includes a bending portion, a traction cable and the above-mentioned control handle, wherein the traction cable is connected between the bending portion and a driven gear disc of a bending control assembly of the control handle.

[0009] In some embodiments, the curved portion includes a snake bone, and the traction cable includes a first sub-traction cable and a second sub-traction cable. One end of the first sub-traction cable passes through the snake bone along the length direction of the snake bone, and the other end of the first sub-traction cable is fixed to the driven gear plate. One end of the second sub-traction cable passes through the snake bone along the length direction of the snake bone, and the other end of the second sub-traction cable is fixed to the driven gear plate. The one end of the first sub-traction cable and the one end of the second sub-traction cable are both fixed to the end of the snake bone away from the control handle.

[0010] In some embodiments, the endoscope further includes an insertion tube and a rotating member, wherein the insertion tube is used to be inserted into the part to be operated through a human body orifice, one end of the insertion tube is connected to the handle housing via the rotating member, and the other end of the insertion tube is provided with the bending portion; the rotating member is rotatably connected to the handle housing, and the rotating member is used to drive the insertion tube to rotate around the axis of the insertion tube.

[0011] In some embodiments, the endoscope further includes a flushing component for flushing the area to be operated on.

[0012] In some embodiments, the flushing assembly includes a liquid inlet pipe, at least a portion of which is disposed in the insertion tube, one end of the liquid inlet pipe is provided with a first liquid inlet for receiving the flushing liquid, and the other end of the liquid inlet pipe is provided with a first liquid outlet for discharging the flushing liquid; the curved portion includes a first mounting hole, and the other end of the liquid inlet pipe is arranged in the first mounting hole, so that the discharge and flushing direction of the first liquid outlet changes as the curved portion rotates.

[0013] In some embodiments, the flushing assembly also includes a drain tube, at least a portion of which is arranged in the insertion tube, one end of the drain tube is provided with a second liquid inlet for absorbing liquid, and the other end of the drain tube is provided with a second liquid outlet; a suction pump is provided at the second liquid inlet; a second mounting hole is provided on the bent portion, and one end of the drain tube is arranged in the second mounting hole, so that the liquid absorption direction of the second liquid inlet changes as the bent portion rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0015] Figure 1 is a schematic diagram of the internal structure of a control handle for an endoscope according to some embodiments of this specification;

[0016] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0017] Figure 3 is a schematic diagram of an exemplary structure of a bending control assembly according to some embodiments of this specification;

[0018] Figure 4 is a schematic structural diagram of an endoscope according to some embodiments of the present application;

[0019] Figure 5 is another structural schematic diagram of an endoscope according to some embodiments of this specification;

[0020] Figure 6 is a schematic structural diagram of the interior and curved portion of an insertion tube according to some embodiments of this specification;

[0021] Figure 7 is another schematic diagram of the internal structure of an endoscope according to some embodiments of this specification;

[0022] Figure 8 It is a schematic diagram of the external structure of an endoscope according to some embodiments of this specification.

[0023] Explanation of reference numerals: 100, endoscope; 110, control handle; 112, handle housing; 112-1, first opening; 112-2, second opening; 114, bending control assembly; 115, trigger; 117, driving gear plate; 117-1, driving gear; 119, driven gear plate; 119-1, gear; 119-2, driven plate; 120, bending portion; 122, snake bone; 130, traction Rope; 131, first sub-traction rope; 132, second sub-traction rope; 140, insertion tube; 150, rotating part; 161, liquid inlet pipe; 161-1, first liquid inlet; 161-2, first liquid outlet; 162, liquid discharge pipe; 162-1, second liquid inlet; 162-2, second liquid outlet; 170, PCB control board; 172, control line; 180, shooting component; 191, light-guiding optical fiber. DETAILED DESCRIPTION

[0024] To more clearly illustrate the technical solutions of the embodiments of this specification, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of this specification. Those skilled in the art can apply this specification to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0025] It should be understood that the terms "system," "device," "unit," and / or "module" used herein are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0026] As used in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not refer to the singular but also include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0027] This specification primarily describes a control handle for an endoscope and an endoscope. The control handle bends and rotates a bending portion by pulling a traction cable. The control handle primarily comprises a handle housing and a bend control assembly housed within the handle housing. The traction cable connects between the bending portion of the endoscope and the bend control assembly, and the bend control assembly controls the bending and rotation of the bending portion via the traction cable. The bend control assembly primarily comprises a trigger, a driving sprocket, and a driven sprocket. One end of the trigger is connected to the driving sprocket, which is rotationally connected to the handle housing. This rotational connection enables the driving sprocket to engage with a driven sprocket, which is connected to the traction cable. When the trigger is pulled and rotated relative to the handle housing, the trigger drives the driving sprocket, which in turn drives the driven sprocket, thereby driving the traction cable to pull the bending portion and rotate it. The structure of the trigger, driving sprocket, and driven sprocket enables control of the bending and rotation of the bending portion while reducing the difficulty of operating the endoscope, enhancing smooth operation and reducing operator effort. The control handle can be applied to an endoscope to control the bending portion of the endoscope to bend (e.g., bend in different directions and at different angles). The endoscope can be used for medical examination or surgery, and can also be used in industry to perform detection and operation in a narrow space.

[0028] Figure 1 is a schematic diagram of the internal structure of a control handle for an endoscope according to some embodiments of this specification. Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of AA, Figure 3 This is an exemplary structural diagram of a bending control assembly according to some embodiments of this specification. Figure 1-3 The control handle for an endoscope involved in the embodiments of the present application is described in detail. It should be noted that the following embodiments are only used to explain the present application and do not constitute a limitation of the present application.

[0029] Please refer to Figure 1-Figure 3The control handle 110 may include a handle housing 112 and a bending control assembly 114 disposed inside the handle housing 112. The handle housing 112 is mainly used to provide a gripping portion for the operator and to provide a mounting and fixing platform for the control handle 110 and other components of the endoscope. The bending control assembly 114 may be used to control the bending of the bending portion 120 through a traction cable 130. The bending control assembly 114 may include a trigger 115, a driving gear disc 117, and a driven gear disc 119. One end of the trigger 115 is connected to the driving gear disc 117, which is engaged with the driven gear disc 119, and the driven gear disc 119 is connected to the traction cable 130. The trigger 115 is rotatably connected to the handle housing 112 so that the trigger 115 can drive the driving gear disc 117 to rotate after being pulled. When the trigger 115 is pulled and rotated relative to the handle housing 112 , the trigger 115 drives the driving gear plate 117 to rotate, thereby driving the driven gear plate 119 to rotate, thereby pulling the traction cable 130 to control the bending portion 120 to bend and rotate.

[0030] Please refer to Figure 1-3 In some embodiments, the driving gear disc 117 may include an arc-shaped structure, and the inner arc surface of the arc-shaped structure may be provided with a driving tooth 117-1. The driven gear disc 119 may include a gear 119-1 meshing with the driving tooth 117-1 and a driven disc 119-2 fixed to the gear 119-1. The driven disc 119-2 is used to connect the traction cable 130. The driven disc 119-2 can rotate with the gear 119-1. When the driving gear disc 117 rotates, it drives the gear 119-1 meshing with the driving tooth 117-1 to rotate, thereby driving the driven disc 119-2 to rotate, and then pulling the traction cable 130 to control the bending rotation of the bending portion 120. Through such a structural setting, the structure of the bending control assembly 114 can be optimized and the space occupied by the bending control assembly 114 can be reduced. In addition, by providing a driven disc 119-2 that rotates with the gear 119-1, it is easy to install the traction cable 130, so that the installation of the traction cable 130 will not interfere with the engagement between the gear 119-1 and the driving gear 117-1. In other embodiments, the driving gear disc 117 and the driven gear disc 119 may both include gears.

[0031] In some embodiments, the transmission ratio between the drive teeth 117-1 of the drive gear plate 117 and the gear 119-1 can be 2:1-4:1. In some embodiments, the transmission ratio between the drive teeth 117-1 and the gear 119-1 can be 3:1. By setting the transmission ratio between the drive teeth 117-1 and the gear 119-1 within the above range, it is easier for the operator to operate and control the bending angle of the bending portion 120 of the endoscope 100.

[0032] In some embodiments, gear 119-1 may be a cylindrical gear, and driven disc 119-2 may be disc-shaped. Driven disc 119-2 and the cylindrical gear may be coaxially arranged. The coaxial arrangement of the cylindrical gear and the disc-shaped driven disc 119-2 ensures stable and uniform transmission between the drive gear disc 117, the cylindrical gear, the driven disc 119-2, and the traction cable 130.

[0033] The beneficial effects that may be brought about by the control handle for endoscope disclosed in this application include but are not limited to: (1) the bending of the bending portion of the endoscope is controlled by the structure of the trigger, the driving dial and the driven dial to change the bending angle of the bending portion, increase the working range of the endoscope, reduce the difficulty of operating the endoscope, improve the smoothness of the operation of the endoscope, and save the operator's operating energy; (2) by setting the driving gear disc as an arc structure with driving teeth, the structure of the bending control component can be optimized and the space occupied by the bending control component can be reduced; (3) by setting the transmission ratio of the driving gear disc and the driven gear disc, it is convenient for the operator to control the bending angle of the bending portion through the trigger; (4) by setting the driven gear disc to include a gear and a driven disc, it is convenient to install the traction rope and ensure that the bending control component can stably control the bending of the bending portion. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects.

[0034] An embodiment of the present application also provides an endoscope. Figure 4 is a schematic structural diagram of an endoscope according to some embodiments of the present application. Figure 5 FIG. 1 is another structural diagram of an endoscope according to some embodiments of this specification. Figure 4 and Figure 5 As shown, the endoscope 100 may include a control handle 110, a bending portion 120, and a traction cable 130. The traction cable 130 is connected between the control handle 110 and the bending portion 120. The control handle 110 can tug on the traction cable 130 to cause the bending portion 120 to bend and rotate. The bending portion 120 may be used to house other functional components (e.g., a camera assembly, a lighting assembly, a flushing assembly, etc.).

[0035] Please refer to Figure 3-5In some embodiments, the bending portion 120 includes a serpentine 122, and the traction cable 130 may include a first sub-traction cable 131 and a second sub-traction cable 132. One end of the first sub-traction cable 131 passes through the serpentine 122 along the length direction of the serpentine 122, and the other end of the first sub-traction cable 131 is fixed (for example, bonded, clamped, etc.) to the driven gear plate 119. One end of the second sub-traction cable 132 passes through the serpentine 122 along the length direction of the serpentine 122, and the other end of the second sub-traction cable 132 is fixed (for example, bonded, clamped, etc.) to the driven gear plate 119. The one end of the first sub-traction cable 131 and the one end of the second sub-traction cable 132 are both fixed to the end of the serpentine 119 away from the control handle 110. In other embodiments, the traction cable 130 may also include only one sub-traction cable. In this case, the middle part of the traction cable 130 can be wound around the driven gear plate 119, and both ends of the traction cable 130 can pass through the snake bone 122 along the length direction of the snake bone 122, and both ends of the traction cable 130 are fixed to the end of the snake bone 122 away from the control handle 110.

[0036] As an example only, the snake bone 122 may include multiple bone segments, and the one end of the first sub-traction cable 131 and the one end of the second sub-traction cable 132 may pass through all the bone segments respectively. When the driven disk 119-2 rotates, the other end of the first sub-traction cable 131 fixed to the driven disk 119-2 and the other end of the second sub-traction cable 132 fixed to the driven disk 119-2 both move with the rotation of the driven disk 119-2. At this time, the length between the one end of the first sub-traction cable 131 and the driven disk 119-2 may shorten (or lengthen), and the length between the one end of the second sub-traction cable 132 and the driven disk 119-2 may correspondingly lengthen (or shorten), thereby causing the snake bone 122 of the traction bending portion 120 to bend, and the direction of the bending rotation is toward the side of the first sub-traction cable 131 (or the second sub-traction cable 132) whose length has shortened, for example, by Figure 5 The status shown changes to Figure 4 In some embodiments, when the snake 122 is not bent, the line connecting the one end of the first sub-traction cable 131 and the one end of the second sub-traction cable 132 is located on the same plane as the axis of the snake 122. This configuration allows the snake 122 to bend in two opposite directions.

[0037] In some embodiments, when the trigger 115 is in its initial position, the bending portion 120 does not bend. When the trigger 115 is pulled to its maximum travel, the bending portion 120 is in its maximum bending and rotational state, at which point the maximum bending and rotational angle of the bending portion 120 can be 60-150°. Due to the structural limitations of the serpentine 122 of the bending portion 120, excessive bending and rotational angles of the bending portion 120 may damage the serpentine 122. However, excessive bending and rotational angles of the bending portion 120 may result in an excessively narrow operating range of the endoscope 100. In some embodiments, the maximum bending and rotational angle of the bending portion 120 can be 90°.

[0038] In some embodiments, the endoscope 100 may further include an insertion tube 140 and a rotating member 150 . Figure 6 FIG. 1 is a schematic diagram of the structure of the interior of the insertion tube 140 and the curved portion 120 according to some embodiments of the present disclosure. Figure 4-6 As shown, the insertion tube 140 can be used to be inserted into the part to be operated through the human body orifice, thereby sending the curved portion 120 to the part to be operated. In addition, other surgical instruments (such as micro needles, etc.) can be inserted into the insertion tube 140 and moved to the part to be operated. On the one hand, the insertion tube 140 plays the role of connecting and supporting the curved portion 120. The operator can operate the control handle 110 to move the curved portion 120 to the part to be operated through the insertion tube 140. On the other hand, the insertion tube 140 can also play the role of isolation protection. For example, when the relevant lines of the endoscope 100 (such as the control line 172, etc., Figure 1 、 Figure 5 When the circuit is inserted into the insertion tube 140 (as shown), the insertion tube 140 protects the circuit and isolates it from the human body, preventing any adverse effects from the circuit on the human body while ensuring its normal operation. In some embodiments, the insertion tube 140 can be a rigid tube, for example, made of a material that does not react with the human body and is harmless to the human body, such as stainless steel.

[0039] In some embodiments, one end of the insertion tube 140 is provided with a curved portion 120, and the other end of the insertion tube 140 (the end away from the curved portion 120) can be connected to the handle housing 112 via a rotating member 150. The rotating member 150 is rotatably connected to the handle housing 112 and can be used to drive the insertion tube 140 to rotate about its axis, thereby changing the direction of the curved portion 120. For example, if the curved portion 120 is curved upward, the rotating member 150 can drive the insertion tube 140 to rotate 90° about its axis, causing the curved portion 120 to curve leftward or rightward.

[0040] In some embodiments, the rotating member 150 may include a rotating bearing, which may include an inner ring and an outer ring that are rotatably connected. The outer ring is fixed to the handle housing 112, and the insertion tube 140 is fixed to the inner ring and arranged coaxially with the inner ring. When the inner ring rotates relative to the outer ring, the inner ring can drive the insertion tube 140 to rotate about the axis of the insertion tube 140. In some embodiments, the connection between the handle housing 112 and the rotating member 150 can be provided with an annular guide rail fixed to the handle housing 112. The rotating member 150 can rotate on the annular guide rail, thereby driving the insertion tube 140 to rotate about the axis of the insertion tube 140.

[0041] In some embodiments, the rotation of the insertion tube 140 may cause the pipes and circuits within the insertion tube 140 to rotate with it, potentially causing significant twisting of the pipes and circuits. In some embodiments, based on the initial position of the rotating member 150, the rotation angle of the rotating member 150 (including forward and / or reverse rotation angles) can be 60-120°, such as 120°, 90°, or 60°. By controlling the rotation angle range of the rotating member 150, tangling and entanglement of components and circuits within the insertion tube 140 (e.g., the control line 172) due to excessive twisting can be minimized.

[0042] In some embodiments, the rotating member 150 can be rotated by manual control. The operator can directly manually operate the rotating member 150 to control the rotation angle of the insertion tube 140. In other embodiments, the endoscope 100 may further include a rotation drive source, the output shaft of which can be connected to the rotating member 150, and the rotation drive source can drive the rotating member 150 to rotate around the axis of the insertion tube 140. By providing a rotation drive source, the rotation angle of the rotating member 150 can be precisely controlled. In some embodiments, the rotation drive source may include a device that provides power output, such as a motor, a pneumatic motor, or a fuel engine. Considering the structural design of the endoscope 100, in some embodiments, the rotation drive source may include a micro motor.

[0043] In some embodiments, the endoscope 100 may further include a controller, the rotational drive source may be connected to the controller, and the controller may be configured to control the rotational drive source to drive the rotating member 150 to rotate. In some embodiments, the controller may be a central processing unit (CPU), a digital signal processor (DSP), a system-on-chip (SoC), a microprocessor (MCU), etc., or any combination thereof. In some embodiments, the controller may be local or remote. For example, the controller may access information and / or data stored in the endoscope 100 via a network. In some embodiments, the controller may include a PCB control board (Printed circuit boards, i.e., printed circuit boards) 170. The PCB control board 170 generates low heat during operation and is relatively small in size. It can be installed inside the handle housing 112 and causes less interference to other components inside the handle housing 112.

[0044] Figure 7 1 is another schematic diagram of the internal structure of the endoscope 100 according to some embodiments of this specification. Figure 8 This is a schematic diagram of the external structure of the endoscope 100 according to some embodiments of this specification. Figure 4-8 In some embodiments, the endoscope 100 may further include a flushing component, which can be used to flush the area to be operated on and remove impurities (such as tissue fluid, blood, etc.) in the area to be operated on to facilitate the operator to perform subsequent operations (such as clamping, cutting, etc.).

[0045] In some embodiments, as Figure 7 As shown, the flushing assembly may include a liquid inlet tube 161, at least a portion of which is disposed within the insertion tube 140. Thus, the liquid inlet tube 161 can be inserted into the area to be operated on along with the insertion tube 150, eliminating the need for an additional insertion step to flush the area to be operated on, thereby reducing the difficulty of operating the endoscope 100. Furthermore, the insertion tube 140 can isolate at least a portion of the liquid inlet tube 161 from the human body, reducing the adverse effects of at least a portion of the liquid inlet tube 161 on the human body and improving the safety of the endoscope 100.

[0046] One end of the liquid inlet pipe 161 is provided with a first liquid inlet port 161-1 for receiving the flushing liquid, and the other end of the liquid inlet pipe 161 is provided with a first liquid outlet port 161-2 for discharging the flushing liquid. In some embodiments, the curved portion 120 may further include a first mounting hole, and the other end of the liquid inlet pipe 161 may be arranged in the first mounting hole, and the first mounting hole is connected to the first liquid outlet port 161-2 of the liquid inlet pipe 161. Since the first liquid outlet port 161-2 is connected to the first mounting hole, the curved portion 120 provided with the first mounting hole can be bent by the traction of the traction rope 130, and the insertion tube 140 connected to the curved portion 120 can be rotated along the axis of the insertion tube 150 under the drive of the rotating member 150. Therefore, the discharge and flushing direction of the first liquid outlet port 161-2 can be changed, thereby increasing the flushing range of the liquid inlet pipe 161 and improving the flushing effect.

[0047] In some embodiments, the liquid inlet pipe 161 may be provided with a control valve, and the control valve may be connected to a controller, and the controller may be configured to control the flow rate of the flushing liquid in the liquid inlet pipe 161 through the control valve.

[0048] In some embodiments, the flushing assembly may further include a drainage tube 162. At least a portion of the drainage tube 162 is disposed within the insertion tube 140. Thus, the drainage tube 162 can be inserted into the operating area along with the insertion tube 140, allowing liquid to be drawn from the operating area without requiring an additional insertion step. Furthermore, the insertion tube 140 isolates at least a portion of the drainage tube 162 from the human body, reducing any adverse effects of the drainage tube 162 on the human body and improving the safety of endoscope 100.

[0049] One end of the drainage tube 162 is provided with a second liquid inlet 162-1 for drawing liquid from the area to be operated on, and the other end of the drainage tube 162 is provided with a second liquid outlet 162-2 for discharging liquid. It should be noted that the liquid drawn by the second liquid inlet 162-1 may include, but is not limited to, flushing fluid, blood, tissue fluid, and other liquids located at the area to be operated on.

[0050] In some embodiments, the handle housing 112 may be provided with a first opening 112-1 and a second opening 112-2. The first opening 112-1 is connected to the first liquid inlet 161-1 of the liquid inlet tube 161, and the second opening 112-2 is connected to the second liquid outlet 162-2 of the liquid discharge tube 162. This integrates the liquid inlet tube 161 and the liquid discharge tube 162 into the handle housing 112, thereby optimizing the structure of the endoscope 100. The curved portion 120 may further include a second mounting hole. One end of the liquid discharge tube 162 may be disposed in the second mounting hole. The second mounting hole is connected to the second liquid outlet 162-2 of the liquid discharge tube 162. Since the second liquid inlet 162-1 is connected to the second mounting hole, and the curved portion 120 provided with the second mounting hole can be bent by the traction of the traction rope 130, and the insertion tube 140 connected to the curved portion 120 can be rotated along the axis of the insertion tube 140 under the drive of the rotating member 150, the liquid suction direction of the second liquid inlet 162-1 can be changed, thereby increasing the liquid suction range of the discharge tube 162, improving the liquid suction effect, and reducing the liquid residue in the part to be operated.

[0051] In some embodiments, the drainage tube 162 may be provided with a suction pump, which may be connected to a controller. The controller may be configured to control the suction pump to generate suction so as to draw the liquid in the area to be operated into the drainage tube 162 from the second liquid inlet 162 - 1 .

[0052] Since the liquid inlet pipe 161 and the liquid discharge pipe 162 may be bent or twisted, in some embodiments, the liquid inlet pipe 161 and the liquid discharge pipe 162 may be flexible pipes, such as rubber hoses, plastic hoses, PVC hoses, metal hoses, etc.

[0053] During the flushing process, flushing liquid is injected from the first opening 112-1 (first liquid inlet 161-1) and discharged from the first mounting hole (first liquid outlet 161-2) through the liquid inlet tube 161, thereby entering and flushing the area to be operated on. The flushed liquid remains in the area to be operated on. Under the action of the suction pump, the flushed liquid (e.g., one or more of flushing liquid, blood, and tissue) is sucked in from the second mounting hole (second liquid inlet 162-1) and discharged from the second opening 112-2 (second liquid outlet 162-2) through the liquid discharge tube 162, thereby completing the extraction of the liquid from the area to be operated on.

[0054] In some embodiments, the endoscope 100 may further include a camera assembly 180, which may be used to capture images of the area to be operated on, providing the operator with a corresponding field of view and facilitating the operator's operation. The camera assembly 180 may be connected to a controller, which may control the operating state of the camera assembly 180, such as whether it is operating or not. The camera assembly 180 may be disposed on the bending portion 120, the bending control assembly 114 may drive the bending portion 120 to bend, and the rotating member 150 may drive the bending portion 120 to rotate, thereby changing the shooting direction of the camera assembly 180.

[0055] In some embodiments, the endoscope 100 may further include an illumination assembly that can illuminate the area to be operated on, thereby making the image of the camera assembly 180 clearer, facilitating operator viewing, and improving surgical efficiency and effectiveness. The illumination assembly may be connected to a controller that can control the operating status of the illumination assembly, such as whether it is operating or not, and the illumination intensity.

[0056] Please refer to Figure 6 In some embodiments, the lighting assembly may include one or more optical fibers 191 disposed within the insertion tube 140. The insertion tube 140 can isolate the optical fibers 191 from the human body, thereby reducing the impact of the optical fibers 191 on the human body and providing a stable working environment for the optical fibers 191. One end of the optical fiber 191 is connected to an external device (e.g., a light source) through the handle housing 112, and the other end is fixed to the curved portion 120, thereby providing lighting for the shooting assembly 180. In some embodiments, the lighting assembly may also include other devices that can provide a light source, such as a light bulb, and the wiring of the lighting assembly is disposed within the insertion tube 140.

[0057] The beneficial effects that the endoscope disclosed in this application may bring include but are not limited to: (1) the bending of the bending portion is controlled by the structure of the trigger, the driving turntable and the driven turntable to change the bending angle of the bending portion, thereby increasing the working range of the endoscope, reducing the difficulty of operating the endoscope, improving the smoothness of the operation of the endoscope, and saving the operator's operating energy; (2) the rotation of the bending portion is controlled by the rotating member to change the rotation angle of the bending portion, thereby increasing the working range of the endoscope; (3) the circuit is integrated into the insertion tube, and the insertion tube provides a stable working environment for the circuit and reduces the adverse effects of the circuit on the human body; (4) the flushing component can flush the operating area to facilitate surgical operation; (5) the lighting component provides a light source, thereby improving the clarity of the imaging of the shooting component. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects.

[0058] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A control handle for an endoscope, characterized in that: The endoscope comprises a handle housing and a bending control assembly disposed in the handle housing; the bending control assembly comprises a trigger, and the trigger is configured to: when the trigger is pulled and rotated relative to the handle housing, control the bending rotation of the bending portion of the endoscope through the traction cable of the endoscope; The bending control assembly further includes a driving gear disc and a driven gear disc, one end of the trigger is connected to the driving gear disc, and the trigger is rotatably connected to the handle housing; the driving gear disc is engaged with the driven gear disc; the driven gear disc is used to connect the traction rope; When the trigger is pulled and rotated relative to the handle housing, the trigger drives the driving gear disc to rotate, thereby driving the driven gear disc to rotate; The driving gear disc comprises an arc-shaped structure, the inner arc surface of which is provided with driving teeth, and the driven gear disc comprises a gear meshing with the driving teeth and a driven disc fixed to the gear, and the driven disc rotates with the gear; the driven disc is used to connect the traction rope; The transmission ratio between the driving teeth and the gear is 2:1-4:1; The gear is a cylindrical gear, the driven disc is disc-shaped, and the driven disc and the cylindrical gear are coaxially arranged.

2. An endoscope, characterized in that: The invention comprises a bending portion, a traction cable and the control handle according to claim 1 , wherein the traction cable is connected between the bending portion and a driven gear plate of a bending control assembly of the control handle.

3. The endoscope according to claim 2, wherein: The bent portion includes a snake bone, and the traction cable includes a first sub-traction cable and a second sub-traction cable. One end of the first sub-traction cable passes through the snake bone along the length direction of the snake bone, and the other end of the first sub-traction cable is fixed to the driven gear plate. One end of the second sub-traction cable passes through the snake bone along the length direction of the snake bone, and the other end of the second sub-traction cable is fixed to the driven gear plate. The one end of the first sub-traction cable and the one end of the second sub-traction cable are both fixed to the end of the snake bone away from the control handle.

4. The endoscope according to claim 2, wherein: The endoscope also includes an insertion tube and a rotating member. The insertion tube is used to be inserted into the part to be operated through a human body orifice. One end of the insertion tube is connected to the handle housing through the rotating member, and the other end of the insertion tube is provided with the bent portion. The rotating member is rotatably connected to the handle housing, and the rotating member is used to drive the insertion tube to rotate around the axis of the insertion tube.

5. The endoscope according to claim 4, wherein: The endoscope further comprises a flushing component, which is used for flushing the part to be operated on.

6. The endoscope according to claim 5, wherein: The flushing assembly includes a liquid inlet pipe, at least a portion of which is disposed within the insertion tube, one end of the liquid inlet pipe being provided with a first liquid inlet for receiving a flushing liquid, and the other end of the liquid inlet pipe being provided with a first liquid outlet for discharging the flushing liquid; The curved portion includes a first mounting hole, and the other end of the liquid inlet pipe is arranged in the first mounting hole, so that the discharge and flushing direction of the first liquid outlet changes as the curved portion rotates.

7. The endoscope according to claim 5, wherein: The flushing assembly further includes a liquid drain pipe, at least a portion of which is disposed within the insertion tube, one end of the liquid drain pipe being provided with a second liquid inlet for drawing liquid, and the other end of the liquid drain pipe being provided with a second liquid outlet; a liquid suction pump being provided at the second liquid inlet; A second mounting hole is provided on the curved portion, and one end of the liquid discharge pipe is arranged in the second mounting hole, so that the liquid suction direction of the second liquid inlet changes as the curved portion rotates.

Images