Operation unit and endoscope

Abstract

The embodiment of the present application provides an operating part and an endoscope. The operating part comprises a shell, a driving mechanism, a traction line and a guide. The shell is formed with a sliding groove. Part of the driving mechanism and part of the traction line are located in the sliding groove. The guide is fixed to the sliding groove. The traction line comprises a first traction section, and the first traction section is arranged in the driving mechanism and the part of the sliding groove outside the driving mechanism. The guide has a guide channel. One end of the traction line is used for being connected with a forceps elevator of the endoscope, and the other end of the traction line passes through the guide channel and is connected with the driving mechanism. The driving mechanism can drive the traction line to move relative to the guide and the sliding groove, so that the lifting and resetting of the forceps elevator are realized. The guide channel wraps at least part of the first traction section. The operating part provided by the embodiment of the present application can provide structural restriction on the movement of the traction line relative to the sliding groove, so that the probability of arching or bending of the traction line is reduced, and the operation reliability of the operating part is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, and in particular to an operation part and an endoscope. BACKGROUND

[0002] The endoscope generally comprises an insertion part and an operation part. The insertion part enters the human body. An end of the insertion part away from the operation part is provided with a lifting forceps. The operation part is located outside the human body and is used by a user to operate and control the lifting forceps located in the human body.

[0003] In the related art, the operation part of the endoscope is generally used to drive a traction line to pull and reset the lifting forceps. However, the traction line is prone to bending and deforming under stress when being reset, thereby affecting the control of the operation part on the lifting forceps. SUMMARY

[0004] Therefore, the embodiments of the present application aim to provide an operation part and an endoscope to solve the problem that the traction line is prone to bending and deforming under stress when being reset, thereby affecting the control of the operation part on the lifting forceps.

[0005] To achieve the above-mentioned purpose, one aspect of the embodiments of the present application provides an operation part, comprising:

[0006] a housing, which is formed with a sliding groove;

[0007] a driving mechanism;

[0008] a traction line, part of the driving mechanism is located in the sliding groove, and the traction line comprises a first traction section, which is arranged in the driving mechanism and the part of the sliding groove located outside the driving mechanism;

[0009] a guide member, which is fixed to the sliding groove and has a guide channel, one end of the traction line is used to be connected with a lifting forceps of the endoscope, and the other end passes through the guide channel and is connected with the driving mechanism, and the driving mechanism can drive the traction line to move relative to the guide member and the sliding groove to realize lifting and resetting of the lifting forceps;

[0010] The guide channel wraps at least part of the first traction section.

[0011] In some embodiments, the driving mechanism comprises a driving member, a first transmission member and a second transmission member. The first transmission member and the second transmission member are arranged in the housing, the driving member is arranged outside the housing, one end of the first transmission member is connected with the driving member, and the other end is connected with the second transmission member. At least part of the second transmission member is arranged in the sliding groove. The driving member is used to drive the first transmission member to rotate. The second transmission member can convert the rotary motion of the first transmission member into linear motion to drive the traction line to move relative to the sliding groove.

[0012] In some embodiments, the driving member comprises a lever, the first transmission member comprises a gear assembly, and the second transmission member comprises a rack, the lever is connected with the gear assembly, and the gear assembly is engaged with the rack.

[0013] In some embodiments, the second transmission member comprises a connecting end and a matching end, the matching end is configured to be connected with the first transmission member, and the connecting end is provided with a mounting groove, the traction line is connected with the connecting end and is arranged in the mounting groove, and at least part of the guide member is located in the mounting groove and is in contact with the groove wall of the mounting groove when the second transmission member drives the traction line to move relative to the guide member.

[0014] In some embodiments, the second transmission member and the sliding groove extend along a first direction, and the first direction is parallel to the length direction of the shell or the included angle between the first direction and the length direction of the shell is an acute angle.

[0015] In some embodiments, the guide member comprises a guide column and a limiting member, at least part of the guide column is located in the mounting groove, the limiting member is located outside the mounting groove, the guide channel penetrates through the guide column and the limiting member, the guide column extends along the extension direction of the sliding groove, the limiting member extends along a second direction, the shell is formed with a clamping groove, the clamping groove is located on at least one side of the sliding groove along the second direction and is in communication with the sliding groove, and at least one end of the limiting member along the second direction is arranged in the clamping groove to limit the movement of the guide member relative to the sliding groove, wherein the second direction intersects with the extension direction of the sliding groove.

[0016] In some embodiments, the clamping groove penetrates through the side wall of at least one side of the sliding groove along the second direction;

[0017] Alternatively, at least one side wall of the sliding groove along the second direction is outwardly recessed to form the clamping groove;

[0018] Alternatively, at least one side wall of the sliding groove along the second direction is inwardly protruded to form the clamping groove.

[0019] In some embodiments, the operation part further comprises a spring sleeve, the traction line comprises a second traction section, one end of the second traction section is connected with the other end of the first traction section away from the driving mechanism, and the other end is configured to be connected with the elevator of the endoscope, the spring sleeve is sleeved with at least part of the second traction section, the shell is provided with a guide groove, the guide groove is in communication with the sliding groove, the extension direction of the guide groove is the same as the extension direction of the sliding groove, and the spring sleeve is arranged in the guide groove.

[0020] In some embodiments, the guide is an integrally injection molded structure.

[0021] In some embodiments, the first transmission member and the second transmission member are integrally injection molded structures.

[0022] Another aspect of the embodiments of the present application provides an endoscope, comprising:

[0023] an insertion portion;

[0024] and the operation portion of any one of the above, the insertion portion is provided with a forceps lifter at one end away from the operation portion, and the forceps lifter is connected with the traction wire.

[0025] The operation portion provided by the embodiments of the present application, the guide is provided, and the guide channel of the guide guides and protects at least the part of the traction wire located in the driving mechanism and located in the sliding groove. The guide channel can provide structural restriction for the movement of the traction wire relative to the sliding groove, reduce the probability of arching or bending of the traction wire, so that the traction wire always moves along the preset trajectory during the movement, the probability of angle deviation during driving the forceps lifter is low, the treatment instrument is convenient to place, and the operation reliability of the operation portion is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 An exploded schematic view of the operation portion provided by the present application;

[0027] Figure 2 A structural schematic view of the operation portion provided by the present application when the traction pulls the forceps lifter;

[0028] Figure 3 A structural schematic view of the operation portion provided by the present application when the forceps lifter is reset;

[0029] Figure 4 A structural schematic view of the shell provided by the present application;

[0030] Figure 5 A structural schematic view of the second transmission member provided by the present application;

[0031] Figure 6 A structural schematic view of the guide provided by the present application.

[0032] REFERENCE SIGNS

[0033] 10, operation part; 11, housing; 11a, sliding groove; 11b, clamping groove; 11c, guide groove; 12, driving mechanism; 121, driving piece; 121a, lever; 122, first transmission piece; 122a, gear; 123, second transmission piece; 123a, rack; 123b, matching end; 123c, connecting end; 123d, mounting groove; 13, traction line; 131, first traction section; 132, second traction section; 14, guide piece; 14a, guide channel; 141, guide column; 142, limiting piece; 15, spring sleeve. DETAILED DESCRIPTION

[0034] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0035] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "communication" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] In the related art, the traction line is usually driven by the operation part of the endoscope to pull and reset the elevator, but the traction line is easy to bend and deform under force when resetting, thereby affecting the control of the operation part on the elevator.

[0038] Based on the above situation, the first aspect of the embodiments of the present application provides an operation part 10 for an endoscope, please refer to Figures 1 to 6The operation part 10 comprises a housing 11, a driving mechanism 12, a traction line 13 and a guide 14. The housing 11 is formed with a sliding groove 11a. The driving mechanism 12 is partially located in the sliding groove 11a. The traction line 13 comprises a first traction section 131. The first traction section 131 is arranged through the driving mechanism 12 and the part of the sliding groove 11a outside the driving mechanism 12. The guide 14 is fixed to the sliding groove 11a. The guide 14 has a guide channel 14a. One end of the traction line 13 is used to be connected with a forceps lifter of an endoscope, and the other end is arranged through the guide channel 14a and connected with the driving mechanism 12. The driving mechanism 12 can drive the traction line 13 to move relative to the guide 14 and the sliding groove 11a, so as to realize lifting and resetting of the forceps lifter. The guide channel 14a wraps at least part of the first traction section 131.

[0039] For example, the endoscope is applied to the medical technical field. The endoscope is used to enter the human body through a natural cavity or a surgical stoma of the human body or an animal body. With the endoscope, the lesion part of the human body or the animal body can be observed, diagnosed and treated. The forceps lifter is used to help medical staff to operate various treatment instruments, such as biopsy forceps and electrocision rings, more conveniently during endoscopic examination or surgery. The endoscope in the present application can be a digestive tract endoscope, for example, can be a duodenoscope.

[0040] The lifting and resetting functions of the forceps lifter can facilitate fine adjustment of the angle and depth of the instrument entering the human body, increase the operation flexibility, reduce the damage to the normal tissues around the lesion part, and also facilitate protection of the endoscope.

[0041] It should be noted that the sliding groove 11a is used to provide a fixed track to guide the movement of an object along a preset path. The part of the driving mechanism 12 arranged in the sliding groove 11a can move along the preset path under the guidance of the sliding groove 11a.

[0042] The part of the driving mechanism 12 located in the sliding groove 11a means that part of the driving mechanism 12 is in the sliding groove 11a, and the other part is outside the sliding groove 11a.

[0043] The traction line 13 comprises the first traction section 131. The first traction section 131 is arranged through the driving mechanism 12 and the part of the sliding groove 11a outside the driving mechanism 12. This means that part of the first traction section 131 is located in the driving mechanism 12, and part of the first traction section 131 is also located in the sliding groove 11a outside the driving mechanism 12. The part of the first traction section 131 located in the driving mechanism 12 can also be located in the sliding groove 11a.

[0044] The guide 14 is fixed to the sliding groove 11a, which means that there is no relative movement between the guide 14 and the sliding groove 11a. When the part of the driving mechanism 12 arranged in the sliding groove 11a moves along the sliding groove 11a, the guide 14 will not move relative to the sliding groove 11a.

[0045] The traction line 13 is directly connectable with the elevator, and can be a steel wire or the like structure with certain rigidity. One end of the traction line 13 is connected with the elevator, and the other end enters the operation part 10 through the guide channel 14a and is connected with the driving mechanism 12. Under the driving of the driving mechanism 12, the traction line 13 can move relative to the sliding groove 11a and the guide 14, so as to realize the lifting and resetting of the elevator.

[0046] When the driving mechanism 12 drives the traction line 13 to move relative to the guide 14 and the sliding groove 11a in the direction away from the elevator, the driving mechanism 12 provides a pulling force for the traction line 13 to pull the elevator to lift; when the driving mechanism 12 drives the traction line 13 to move relative to the guide 14 and the sliding groove 11a in the direction close to the elevator, the driving mechanism 12 provides a pushing force for the traction line 13 to push the elevator to reset.

[0047] It can be understood that the traction line 13 is a structure with sufficient length but relatively thin, and at the position close to the connection between the traction line 13 and the driving mechanism 12, the traction line 13 is exposed in the surrounding space without structural limitation, and is extremely easy to arch or bend in the process of straight-line movement, thereby causing the angle deviation in driving the elevator and affecting the operation of the endoscope.

[0048] It can be understood that the guide channel 14a can provide structural limitation for the position of the traction line 13 in the driving mechanism 12 and the sliding groove 11a, i.e. the first traction segment 131, so that the traction line 13 always moves along the preset track in the moving process, reducing the probability of arching or bending of the traction line 13 in the first traction segment 131.

[0049] It should be noted that the guide channel provides protection and guidance for the traction line 13 while as far as possible not generating resistance to the straight-line movement of the traction line 13.

[0050] Exemplarily, the traction line 13 moves along the extension direction of the sliding groove 11a, and the extension direction of the guide channel 14a is consistent with the extension direction of the sliding groove 11a.

[0051] It should be noted that the guide channel 14a wraps at least part of the first traction segment 131, so that no matter where the driving mechanism 12 drives the traction line 13 to move, the guide channel 14a can wrap the first traction segment 131. Here, the first traction segment 131 can be the part of the traction line 13 located in the driving mechanism 12 and in the sliding groove 11a, or can be the whole structure of the traction line 13 located in the driving mechanism 12 and in the sliding groove 11a.

[0052] Specifically, when the driving mechanism 12 drives the traction line 13 to move relative to the guide 14, the positions of the traction line 13 and the driving mechanism 12 relative to the guide 14 can change. That is, when the forceps lifter is reset, the guide 14 changes the relative position with the driving mechanism 12 and the traction line 13. When the driving mechanism 12 is provided with sufficient accommodation space, at least part of the guide 14 can be located in the driving mechanism 12, so as to wrap the part of the first traction section 131 located in the driving mechanism 12 and the part of the traction line 13 located outside the driving mechanism 12 and in the sliding groove 11a. When the forceps lifter is pulled to be lifted, the relative distance between the guide 14 and the driving mechanism 12 increases, at this time, at least part of the guide 14 is located outside the driving mechanism 12, and the guide 14 can wrap only the part of the first traction section 131 located outside the driving mechanism 12 and in the sliding groove 11a, or wrap the part of the first traction section 131 located in the driving mechanism 12 and the part of the traction line 13 located outside the driving mechanism 12 and in the sliding groove 11a.

[0053] Therefore, the guide channel 14a of the guide 14 can guide and protect at least the part of the traction line 13 close to the end of the driving mechanism 12, and improve the situation that the traction line 13 close to the end of the driving mechanism 12 is easily deformed and bent under force when the driving mechanism 12 reciprocally lifts and resets the forceps lifter.

[0054] It should be noted that the specific structure of the driving mechanism 12 is not limited.

[0055] For example, the driving mechanism 12 can include a gear transmission mechanism or a crank connecting rod slider mechanism. When the driving mechanism 12 includes the crank connecting rod slider mechanism, the user can drive the connecting rod through the crank, so as to drive the slider to move relative to the sliding groove 11a.

[0056] The operation part 10 provided by the embodiment of the application, the guide 14 is provided, at least the part of the traction line 13 located in the driving mechanism 12 and in the sliding groove 11a is guided and protected through the guide channel 14a of the guide 14, the guide channel 14a can provide structural restriction for the movement of the traction line 13 relative to the sliding groove 11a, reduce the probability of the traction line 13 being arched or bent, so that the traction line 13 always moves along the preset track in the movement process, the probability of angle deviation is low when the forceps lifter is driven, the treatment instrument is convenient to place, and the operation reliability of the operation part 10 is improved.

[0057] In some embodiments, please refer to Figures 1 to 3The driving mechanism 12 comprises a driving member 121, a first transmission member 122 and a second transmission member 123. The first transmission member 122 and the second transmission member 123 are arranged in the shell 11. The driving member 121 is arranged outside the shell 11. One end of the first transmission member 122 is connected with the driving member 121, and the other end is connected with the second transmission member 123. At least part of the second transmission member 123 is arranged in the sliding groove 11a. The driving member 121 is used to drive the first transmission member 122 to rotate. The second transmission member 123 can convert the rotary motion of the first transmission member 122 into linear motion to drive the traction line 13 to move relative to the sliding groove 11a.

[0058] The driving member 121 is arranged outside the shell 11, which means that the driving member 121 can be directly seen from the outer surface of the shell 11, and the operator can directly apply an external force to the driving member 121 from the outside of the shell 11 to drive the first transmission member 122.

[0059] The second transmission member 123 can convert the rotary motion of the first transmission member 122 into linear motion to drive the traction line 13 to move relative to the sliding groove 11a. That is, the driving mechanism 12 can drive the first transmission member 122 to rotate, and the second transmission member 123 can convert the rotary motion of the first transmission member 122 into linear motion to drive the traction line 13 to move relative to the sliding groove 11a. The second transmission member 123 can be arranged in the sliding groove 11a in whole or in part. When the second transmission member 123 moves towards the direction close to the tongs lifter, the whole structure of the second transmission member 123 can be located in the sliding groove 11a, and when the second transmission member 123 moves towards the direction away from the tongs lifter, a small part of the structure of the second transmission member 123 can be located outside the sliding groove 11a. The extension direction of the second transmission member 123 is the same as the sliding groove 11a, so that the second transmission member 123 moves linearly along the preset track in the sliding groove 11a.

[0060] In this embodiment, the rotary motion is converted into linear motion, which is simple to operate, and the movement of the second transmission member 123 can be limited by the sliding groove 11a, which increases the movement reliability of the second transmission member 123, and the traction line 13 is driven by the second transmission member 123, which also increases the transmission reliability and facilitates the smooth movement of the traction line 13.

[0061] In some embodiments, referring to Figures 1 to 3 and Figure 5 The driving member 121 comprises a lever 121a. The first transmission member 122 comprises a gear assembly. The second transmission member 123 comprises a rack 123a. The lever 121a is connected with the gear assembly, and the gear assembly is engaged with the rack 123a.

[0062] It should be noted that the first transmission member 122 comprises a gear assembly, which means that the first transmission member 122 has a structure of gear teeth that can rotate around the center of the corresponding pitch circle. Here, the gear assembly can have only one gear 122a, or can have multiple gears 122a, which is not limited here.

[0063] Exemplarily, please refer to Figure 1 , the gear assembly comprises one gear 122a.

[0064] Specifically, the gear 122a can only form part of the gear tooth structure for meshing transmission with other gears; the gear 122a can also form a complete circle of gear tooth structure.

[0065] The second transmission member 123 comprises a rack 123a, which means that the second transmission member 123 has a structure of the rack 123a. Among them, the rack 123a is a special gear with teeth distributed on a bar-shaped body. The tooth profile of the rack 123a is a straight line rather than an involute (the tooth surface is a plane), which is equivalent to a cylindrical gear with an infinite pitch circle radius.

[0066] Here, the user can rotate the gear assembly by pulling the lever 121a, and the gear assembly will transmit driving force to the rack 123a. The rack 123a converts the rotational motion of the gear assembly into linear motion, thereby driving the traction line 13 to move relative to the chute 11a. The transmission structure is more simple and reliable, reducing the number of transmission parts. At the same time, the meshing of the gear 122a and the rack 123a can improve the transmission accuracy, thereby improving the control accuracy of the operating part 10 on the lifting tong.

[0067] Some embodiments, please refer to Figure 2 , Figure 3 and Figure 5 , the second transmission member 123 comprises a matching end 123b and a connecting end 123c. The matching end 123b is used for matching connection with the first transmission member 122. The connecting end 123c is provided with a mounting groove 123d. The traction line 13 is connected with the connecting end 123c and is arranged in the mounting groove 123d. When the second transmission member 123 drives the traction line 13 to move relative to the guide member 14, at least part of the guide member 14 is located in the mounting groove 123d and in contact with the groove wall of the mounting groove 123d.

[0068] It can be understood that in the embodiment in which the first transmission member 122 comprises a gear assembly and the second transmission member 123 comprises a rack 123a, the matching end 123b is the part of the rack 123a used for meshing transmission with the gear assembly, and the connecting end 123c is the part of the rack 123a which is not provided with teeth and is connected with the traction line 13.

[0069] Among them, the connection mode of the traction line 13 and the connecting end 123c is not limited.

[0070] Exemplarily, the traction line 13 can be connected with the connecting end 123c by welding, or the traction line 13 can be connected with the connecting end 123c by clamping, of course, the traction line 13 can also be connected with the connecting end 123c through an intermediate structure.

[0071] When the second transmission member 123 drives the traction line 13 to move relative to the guide member 14, at least part of the guide member 14 is located in the mounting groove 123d and in contact with the groove wall of the mounting groove 123d, that is, during the entire process of sliding along the sliding groove 11a, the guide member 14 is always structured to be located in the mounting groove 123d, at the same time, the groove wall of the mounting groove 123d is in contact with the guide member 14, the mounting groove 123d can cooperate with the guide member 14 to further increase the movement guidance and structural restriction of the traction line 13, and the part of the traction line 13 located in the mounting groove 123d can move along the preset trajectory, further reducing the probability of arching or bending.

[0072] In some embodiments, referring to Figure 2 , the second transmission member 123 and the sliding groove 11a extend along a first direction.

[0073] In some embodiments, the first direction is parallel to the length direction of the shell 11.

[0074] It should be noted that the sizes of different components in three directions in the same absolute coordinate system are different, and generally the length, width and thickness of the object are determined according to the sizes of the object in three directions, and the length>width>thickness.

[0075] The second transmission member 123 and the sliding groove 11a both extend along the first direction, so that the sliding direction of the second transmission member 123 relative to the sliding groove 11a is the first direction.

[0076] Exemplarily, the first direction can be the length direction of the second transmission member 123.

[0077] The first direction can be parallel to the length direction of the shell 11, at this time, the extension direction of the second transmission member 123 and the sliding groove 11a, that is, the linear motion direction of the second transmission member 123, is parallel to the length direction of the shell 11. In this way, the included angle between the motion direction of the second transmission member 123 and the length direction of the shell 11 is zero, without the need for inclined arrangement, increasing the arrangement convenience.

[0078] In other embodiments, the included angle between the first direction and the length direction of the shell 11 is an acute angle. Referring to Figure 2The first direction is a, the length direction of the shell 11 is b, and the included angle between the first direction and the length direction of the shell 11 is an acute angle θ. That is, the second transmission member 123 is arranged obliquely relative to the length direction of the shell 11, so that the space in the shell 11 can be fully utilized, the components of the operation part 10 are more compact, and the overall size of the operation part 10 is reduced.

[0079] In the embodiment in which the first transmission member 122 comprises a gear 122a and the second transmission member 123 comprises a rack 123a, the included angle between the extension direction of the rack 123a and the length direction of the shell 11 is an acute angle, that is, the size of the operation part 10 along the direction perpendicular to the length direction of the shell 11 can be reduced while the gear 122a and the rack 123a are engaged, so that the structure layout of the operation part 10 is more compact.

[0080] In some embodiments, referring to Figures 1 to 6 The guide 14 comprises a guide column 141 and a limiting member 142. At least part of the guide column 141 is located in the mounting groove 123d. The limiting member 142 is located outside the mounting groove 123d. The guide channel 14a penetrates the guide column 141 and the limiting member 142. The guide column 141 extends along the extension direction of the sliding groove 11a. The limiting member 142 extends along the second direction. The shell 11 is formed with a clamping groove 11b. The clamping groove 11b is located on at least one side of the sliding groove 11a along the second direction and communicates with the sliding groove 11a. At least one end of the limiting member 142 along the second direction is arranged in the clamping groove 11b to limit the movement of the guide 14 relative to the sliding groove 11a. The second direction intersects the extension direction of the sliding groove 11a.

[0081] At least part of the guide column 141 is located in the mounting groove 123d, and the guide column 141 extends along the extension direction of the sliding groove 11a, that is, during the movement of the second transmission member 123, the length of the part of the guide column 141 located in the mounting groove 123d can be changed by the movement of the mounting groove 123d relative to the guide column 141. The extension direction of the guide column 141 is consistent with the extension direction of the sliding groove 11a, so as to facilitate guiding the movement of the traction line 13 and making the movement direction of the traction line 13 consistent with the extension direction of the sliding groove 11a.

[0082] The guide channel 14a penetrates the guide column 141 and the limiting member 142, that is, the traction line 13 is arranged in the guide column 141 and the limiting member 142.

[0083] The limiting member 142 extends along a second direction, wherein the second direction intersects the extending direction of the sliding groove 11a, that is, the extending direction of the limiting member 142 can be non-perpendicular or perpendicular to the extending direction of the sliding groove 11a, so that the limiting member 142 can form limiting with the clamping groove 11b along the extending direction of the sliding groove 11a to limit the movement of the guiding member 14 relative to the sliding groove 11a, thereby achieving the fixation of the guiding member 14.

[0084] The clamping groove 11b is located on at least one side of the sliding groove 11a along the second direction, which can be that the clamping groove 11b is located on one side of the sliding groove 11a along the second direction, or the clamping groove 11b is located on both sides of the sliding groove 11a along the second direction. In this case, the clamping grooves 11b on both sides can increase the fixation effect of the limiting member 142 and further reduce the probability of the guiding member 14 being pulled out.

[0085] For example, referring to Figure 4 , the clamping groove 11b is located on both sides of the sliding groove 11a along the second direction.

[0086] For example, the shell 11 can also be provided with a stop structure, which can make stop contact with the limiting member 142 in the thickness direction of the shell 11 after the limiting member 142 is arranged in the clamping groove 11b, thereby further improving the situation that the guiding member 14 is pulled out of the sliding groove 11a.

[0087] The specific structure of the clamping groove 11b is not limited.

[0088] For example, referring to Figure 4 , the clamping groove 11b penetrates at least one side wall of the sliding groove 11a along the second direction.

[0089] In this embodiment, the clamping groove 11b can penetrate one side wall of the sliding groove 11a along the second direction, or can penetrate both side walls of the sliding groove 11a along the second direction. In this way, the clamping groove 11b can have sufficient limiting space, and the size of the limiting member 142 can be larger, thereby facilitating better limiting effect.

[0090] In other embodiments, at least one side wall of the sliding groove 11a along the second direction is outwardly recessed to form the clamping groove 11b. That is, at least one side wall of the sliding groove 11a along the second direction is deformed outwardly away from the sliding groove 11a, thereby forming the clamping groove 11b. The clamping groove 11b does not penetrate the side wall of the sliding groove 11a along the second direction. In this way, the limiting member 142 does not exceed the space defined by the sliding groove 11a, thereby reducing the probability of contact and wear between the limiting member 142 and other structures outside the sliding groove 11a.

[0091] In some embodiments, the groove 11a protrudes inward along at least one sidewall in the second direction to form a slot 11b. That is, the groove 11a extends and protrudes along at least one sidewall in the second direction toward the centerline of the groove 11a to form a protrusion, and at least two protrusions enclose to form the slot 11b. In this way, the size of the limiting member 142 can be smaller, increasing the compactness of the layout.

[0092] Here, the slot 11b is formed in different ways to limit the guide 14 in the first direction.

[0093] In some embodiments, please refer to Figures 1 to 3 The operating unit 10 also includes a spring sleeve 15. The traction cable 13 includes a second traction section 132. One end of the second traction section 132 is connected to the end of the first traction section 131 away from the drive mechanism 12, and the other end is used to connect to the endoscope's lifting clamp. The spring sleeve 15 is fitted over at least a portion of the second traction section 132. The housing 11 is provided with a guide groove 11c. The guide groove 11c communicates with a slide groove 11a. The extending direction of the guide groove 11c is the same as the extending direction of the slide groove 11a. The spring sleeve 15 passes through the guide groove 11c.

[0094] One end of the second traction section 132 is connected to the end of the first traction section 131 away from the drive mechanism 12, and the other end is used to connect to the endoscope's lifting clamp. In other words, the second traction section 132 is the part of the traction line 13 located between the guide member 14 and the endoscope's lifting clamp.

[0095] The spring sleeve 15 is sleeved on at least a portion of the second traction section 132, meaning that the spring sleeve 15 can be completely sleeved on the outside of the second traction section 132, or it can be sleeved only on a portion of the second traction section 132, thereby guiding and protecting the traction line 13 in that portion and improving the situation where the traction line 13 is easily deformed and bent by external forces.

[0096] It should be noted that the traction line 13 can slide along the spring sleeve 15.

[0097] For example, the spring sleeve 15 is sleeved over the entire second traction section 132. One end of the spring sleeve 15 abuts against the guide 14 and the other end abuts against the clamp lifter. In this way, when the traction line 13 is pulled, it can drive the clamp lifter to rotate instead of pulling the clamp lifter backward. Therefore, the spring sleeve 15 can play a supporting and guiding role.

[0098] For example, the outer diameter of the spring sleeve 15 is larger than the aperture of the guide channel 14a, and the guide member 14 can block the spring sleeve 15 so that the spring sleeve 15 cannot enter the slide groove 11a through the guide channel 14a of the guide member 14.

[0099] Thus, by setting the guide groove 11c in the shell 11 which communicates with the sliding groove 11a and is in the same extension direction as the sliding groove 11a, the traction line 13 led out from the guide piece 14 can first pass through the guide groove 11c after being stretched out of the sliding groove 11a, at the same time, the spring sleeve 15 is sleeved on the second traction segment 132 from the guide groove 11c, so that the second traction segment 132 can be more comprehensively protected, and at the same time, the guide groove 11c can guide the traction line 13 stretched out of the sliding groove 11a to a certain extent, so that the second traction segment 132 stretched out of the sliding groove 11a will not be subjected to excessive external force, thereby improving the operation feeling of the driving mechanism 12 to the traction line 13.

[0100] In some embodiments, the guide piece 14 is an integral injection molding structure.

[0101] Here, the guide piece 14 is an integral injection molding structure, which can reduce the material cost of the guide piece 14, thereby reducing the production cost of the endoscope.

[0102] In some embodiments, the first transmission member 122 and the second transmission member 123 are integral injection molding structures.

[0103] In this way, the material cost of the first transmission member 122 and the second transmission member 123 can be reduced, thereby reducing the production cost of the endoscope.

[0104] The second aspect of the embodiments of the present application provides an endoscope, which comprises an insertion part and the operation part 10 provided by any of the embodiments of the present application. The insertion part is provided with an elevator at one end away from the operation part 10. The elevator is connected with the traction line 13.

[0105] The endoscope provided by the embodiments of the present application, by setting the guide piece 14, the guide channel 14a of the guide piece 14 at least guides and protects the part of the traction line 13 located in the driving mechanism 12 and in the sliding groove 11a, the guide channel 14a can provide structural restriction to the movement of the traction line 13 relative to the sliding groove 11a, reduce the probability of arching or bending of the traction line 13, so that the traction line 13 always moves along the preset trajectory during movement, the probability of angle deviation during driving the elevator is low, the treatment instrument is convenient to place, and the operation reliability of the operation part 10 is improved.

[0106] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0107] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An operating portion for an endoscope, characterized by comprising: The operation part comprises: a housing formed with a sliding groove; a driving mechanism; a traction line, part of the driving mechanism is located in the sliding groove, the traction line comprises a first traction section, the first traction section is arranged in the driving mechanism and the part of the traction line outside the driving mechanism; a guide fixed to the sliding groove, the guide has a guide channel, one end of the traction line is connected with the elevator of the endoscope, the other end passes through the guide channel and is connected with the driving mechanism, the driving mechanism can drive the traction line to move relative to the guide and the sliding groove to realize the lifting and resetting of the elevator; the guide channel is wrapped around at least part of the first traction section; the driving mechanism comprises a driving member, a first transmission member and a second transmission member, the first transmission member and the second transmission member are arranged in the housing, the driving member is arranged outside the housing, one end of the first transmission member is connected with the driving member, the other end is connected with the second transmission member, at least part of the second transmission member is arranged in the sliding groove, the driving member is used to drive the first transmission member to rotate, the second transmission member can convert the rotary motion of the first transmission member into linear motion to drive the traction line to move relative to the sliding groove; the second transmission member comprises a matching end and a connecting end, the matching end is used to match and connect with the first transmission member, the connecting end is provided with a mounting groove, the traction line is connected with the connecting end and arranged in the mounting groove, when the second transmission member drives the traction line to move relative to the guide, at least part of the guide is located in the mounting groove and in contact with the groove wall of the mounting groove; the guide comprises a guide column and a limiting member, at least part of the guide column is located in the mounting groove, the limiting member is located outside the mounting groove, the guide channel penetrates through the guide column and the limiting member, the guide column extends along the extension direction of the sliding groove, the limiting member extends along a second direction, the housing is formed with a clamping groove, the clamping groove is located on at least one side of the sliding groove along the second direction and communicates with the sliding groove, at least one end of the limiting member along the second direction is arranged in the clamping groove to limit the movement of the guide relative to the sliding groove, wherein the second direction intersects with the extension direction of the sliding groove.

2. The operating portion according to claim 1, characterized by the driving member comprises a lever, the first transmission member comprises a gear assembly, the second transmission member comprises a rack, the lever is connected with the gear assembly, the gear assembly is engaged with the rack.

3. The operating portion according to claim 1, characterized by the second transmission member and the sliding groove extend along a first direction, the first direction is parallel to the length direction of the housing or the included angle between the first direction and the length direction of the housing is an acute angle.

4. The operating portion according to claim 1, characterized by the clamping groove penetrates through the side wall of at least one side of the sliding groove along the second direction; alternatively, at least one side wall of the sliding groove along the second direction is outwardly recessed to form the clamping groove; alternatively, at least one side wall of the sliding groove along the second direction is inwardly protruded to form the clamping groove.

5. The operating portion according to claim 1, characterized by The operation part further comprises a spring sleeve, the traction line comprises a second traction section, one end of the second traction section is connected with the first traction section away from the driving mechanism, the other end is used for connecting with the elevator of the endoscope, the spring sleeve is sleeved on at least part of the second traction section, the shell is provided with a guide groove, the guide groove is communicated with the sliding groove, the extension direction of the guide groove is the same as the extension direction of the sliding groove, and the spring sleeve is arranged in the guide groove.

6. The operating portion according to claim 1, wherein The guide piece is an integral injection molding structure; and / or the first transmission piece and the second transmission piece are integral injection molding structures.

7. An endoscope characterized by comprising: Comprise: An insertion part; And the operation part of any one of claims 1-6, one end of the insertion part away from the operation part is provided with an elevator, and the elevator is connected with the traction line.

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