Endoscope and operating handle

Abstract

The present application belongs to the field of medical device technology, and specifically relates to an endoscope and an operating handle thereof. The operating handle includes a handle housing, a traction wheel, an operating member and a tensioning member. The traction wheel is rotatably arranged on the handle housing, and the operating member can rotate relative to the handle housing to drive the traction wheel to rotate and pull the traction rope to bend the active bending section. The tensioning member can be movably arranged on the handle housing and can move between a first position and a second position; when the tensioning member is in the first position, the tensioning member releases the tensioning state of the traction rope, and the operating member and the handle housing are rotationally limited; when the tensioning member is in the second position, the tensioning member tensions the traction rope, and the operating member and the handle housing are released from the rotationally limited cooperation. The present application can help solve the problem of delayed bending of the active bending section when performing surgery using the operating handle in the related art.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to an endoscope and an operating handle thereof. Background Art

[0002] When diagnosing and treating lesions in the patient's body, an endoscope is usually required. The endoscope includes an operating handle and an insertion part. During specific operation, by controlling the operating handle, the active bending section at the front end of the insertion part can be pulled by a traction rope to achieve bending action, thereby changing the direction of the front end of the insertion part to facilitate the insertion part to enter the natural cavity of the human body.

[0003] In the related art, the operating handle is provided with a tensioning mechanism, through which the tensioning state of the traction rope can be switched. When the endoscope leaves the factory, the tensioning state of the traction rope can be released by the tensioning mechanism, so that there is no tensioning force applied by the traction rope between two adjacent snake bones of the active bending section, which can prevent the snake bones from being damaged under the tensioning force for a long time; when the endoscope is needed for surgery, the tensioning mechanism can be used to tension the traction rope to prevent the active bending section from bending delayed. However, in practice, when the operating handle of the related art is used for surgery, the active bending section sometimes also has a bending delay. Summary of the invention

[0004] The purpose of the present application is to provide an endoscope and an operating handle thereof, which can help solve the problem of bending delay in the active bending section when performing surgery using the operating handle in the related art.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, the present application provides an operating handle of an endoscope, comprising a handle housing, a traction wheel, an operating member and a tensioning member, wherein the traction wheel is rotatably disposed on the handle housing, the operating member can rotate relative to the handle housing, and drives the traction wheel to rotate so as to pull the traction rope to bend the active bending section, and the tensioning member can be movably disposed on the handle housing and can move between a first position and a second position;

[0007] When the tensioning member is in the first position, the tensioning member releases the tensioning state of the traction rope, and the operating member and the handle shell are rotationally limited in cooperation; when the tensioning member is in the second position, the tensioning member tensions the traction rope and releases the rotationally limited cooperation between the operating member and the handle shell.

[0008] In a second aspect, the present application provides an endoscope comprising the above-mentioned operating handle.

[0009] The beneficial technical effects of this application are as follows:

[0010] In the present application, when the endoscope leaves the factory, the tensioning member can be located in the first position, at which time the tensioning member releases the tensioning state of the traction rope, so that there is no tensioning force applied by the traction rope between two adjacent snake bone nodes of the active bending section, which can prevent the snake bone nodes from being damaged under the tensioning force for a long time, and in this position, the operating member and the handle shell are in rotation limit cooperation, that is, the operating member cannot rotate relative to the handle shell, so that the medical staff cannot drive the traction wheel to rotate through the operating member, and thus cannot drive the active bending section to bend. When the operating handle is required for surgery, the tensioning member can be located in the second position, at which time the tensioning member tensions the traction rope, and the operating member and the handle shell are released from the rotation limit cooperation, that is, the operating member can rotate relative to the handle shell, so that the medical staff can drive the traction wheel to rotate through the operating member, and thus drive the active bending section to bend, and because the traction rope is in a tensioned state in this position, it can prevent the active bending section from being delayed when bending.

[0011] From the above analysis, it can be seen that when using the operating handle of the present application, when the tensioning member releases the tensioning state of the traction rope, the operating member cannot be used to drive the traction wheel to rotate, and thus cannot drive the active bending section to bend; that is, when using the operating handle, the tensioning member must first be switched to the second position to tension the traction rope, and then the operating member can be used to drive the traction wheel to rotate, thereby driving the active bending section to bend. This can avoid the situation where the tensioning member is not used to tension the traction rope before the control operating member is rotated, and thus solve the problem of bending delay when the active bending section is bent. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the endoscope disclosed in the embodiment of the present application;

[0013] Figure 2 A schematic diagram of a portion of the structure of an endoscope disclosed in an embodiment of the present application;

[0014] Figure 3 An exploded schematic diagram of a partial structure of an endoscope disclosed in an embodiment of the present application;

[0015] Figure 4 It is a schematic diagram of a part of the structure of the endoscope when the tensioning member disclosed in the embodiment of the present application is in the first position;

[0016] Figure 5 A cross-sectional view of a part of the structure of the endoscope when the tensioning member disclosed in the embodiment of the present application is in the first position Figure 1 ;

[0017] Figure 6 For this application Figure 5 The enlarged schematic diagram of point A in the middle;

[0018] Figure 7A cross-sectional view of a part of the structure of the endoscope when the tensioning member disclosed in the embodiment of the present application is in the first position Figure 2 ;

[0019] Figure 8 For this application Figure 7 The enlarged schematic diagram of point B in the middle;

[0020] Fig. 9 It is a schematic diagram of a part of the structure of the endoscope when the tensioning member disclosed in the embodiment of the present application is in the second position;

[0021] Fig.10 A cross-sectional view of a portion of the structure of the endoscope when the tensioning member disclosed in the embodiment of the present application is in the second position Figure 1 ;

[0022] Fig.11 A cross-sectional view of a portion of the structure of the endoscope when the tensioning member disclosed in the embodiment of the present application is in the second position Figure 2 ;

[0023] Fig.12 For this application Fig.11 The enlarged schematic diagram of the center C;

[0024] Fig.13 It is a schematic diagram of the structure of the traction wheel disclosed in the embodiment of the present application;

[0025] Fig.14 It is an exploded schematic diagram of the traction wheel disclosed in the embodiment of the present application;

[0026] Fig.15 It is a schematic diagram of the structure of the tensioning member disclosed in the embodiment of the present application;

[0027] Fig.16 It is a schematic diagram of a part of the structure of the handle housing disclosed in the embodiment of the present application;

[0028] Fig.17 This is a schematic diagram of the structure of the operating button disclosed in the embodiment of the present application.

[0029] Description of reference numerals:

[0030] 100, handle housing; 101, mounting cavity; 110, inserting protrusion; 120, mounting member; 121, glue storage groove; 130, mounting hole; 200, tensioning member; 210, tensioning protrusion; 211, tensioning portion; 212, guide portion; 220, positioning protrusion; 230, insertion portion; 240, inserting recess; 301, avoidance gap; 310, traction wheel; 311, first wheel body; 312, second wheel body; 313, protrusion; 314, through hole; 320, rotating shaft; 330, lever; 400, destroying member; 500, glue storage container; 610, operating button; 611, spiral surface; 612, limiting portion; 620, push member; 621, sliding rod; 622, avoidance hole; 700, insertion portion; 810, traction rope; 820, elastic member. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0033] The endoscope and operating handle thereof provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0034] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its components relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0035] The inventor has found that when using the operating handle in the related art, it is necessary to first use the tensioning mechanism to tighten the traction rope, and then use the traction rope to pull the active bending section to achieve the bending action, so as to prevent the active bending section from bending delayed. However, in practice, some medical staff will forget the above steps, and skip the step of tightening the traction rope with the tensioning mechanism, and directly use the traction rope to pull the active bending section. That is to say, before using the traction rope to pull the active bending section, the tensioning mechanism is not used to tighten the traction rope, which will cause the active bending section to bend delayed.

[0036] like Figures 1 to 17 As shown, the embodiment of the present application discloses an operating handle of an endoscope, including a handle housing 100, a traction wheel 310, an operating member and a tensioning member 200. The traction wheel 310 is rotatably arranged on the handle housing 100. The operating member can rotate relative to the handle housing 100 and drive the traction wheel 310 to rotate to pull the traction rope 810 to bend the active bending section. That is, only when the operating member rotates relative to the handle housing 100 can the operating member be used to control the bending of the active bending section. The tensioning member 200 is movably arranged on the handle housing 100. The activity here can be rotation or movement, and can move between a first position and a second position. Specifically, the traction wheel 310 of the present application can be connected to the proximal end of the traction rope 810, and the distal end of the traction rope 810 is connected to the distal end of the active bending section. By rotating the traction wheel 310, the traction rope 810 can be pulled, thereby realizing the bending of the active bending section to change the distal end direction of the endoscope insertion part 700.

[0037] When the tensioning member 200 is in the first position, the tensioning member 200 releases the tensioning state of the traction rope 810, and the operating member and the handle housing 100 are rotationally limited in cooperation; when the tensioning member 200 is in the second position, the tensioning member 200 tensions the traction rope 810, and the operating member and the handle housing 100 are rotationally limited in cooperation.

[0038] Specifically, when the traction rope 810 is in a tensioned state, the traction rope 810 is taut and there are no loose or redundant parts. At this time, when the traction wheel 310 is rotated, the traction rope 810 will pull the active bending section to bend in the preset direction; when the traction rope 810 is released from tension, the traction rope 810 can be in a relaxed state, the traction rope 810 is not taut, and there may be loose or redundant parts. At this time, when the traction wheel 310 is rotated, the traction rope 810 will not immediately pull the active bending section to bend in the preset direction, but will drive the active bending section to bend in the preset direction only after the traction wheel 310 rotates a certain stroke to tension the traction rope 810. In other words, there is a delay in the bending of the active bending section.

[0039] In the present application, the tensioning member 200 can be located in the first position when the endoscope leaves the factory. At this time, the tensioning member 200 releases the tensioning state of the traction rope 810, so that there is no tensioning force applied by the traction rope 810 between two adjacent snake bone nodes of the active bending section, which can prevent the snake bone nodes from being damaged under the tensioning force for a long time. In this position, the operating member and the handle housing 100 are matched with the rotation limit, that is, the operating member cannot rotate relative to the handle housing 100, so that medical staff cannot drive the traction wheel 310 to rotate through the operating member, and thus cannot drive the active bending section to bend. When it is necessary to use the operating handle for surgery, the tensioning member 200 can be located in the second position. At this time, the tensioning member 200 tensions the traction rope 810, and the operating member and the handle housing 100 release the rotation limit cooperation, that is, the operating member can rotate relative to the handle housing 100, so that the medical staff can drive the traction wheel 310 to rotate through the operating member, thereby driving the active bending section to bend, and because the traction rope 810 is in a tensioned state in this position, it can prevent the active bending section from being delayed when bending.

[0040] From the above analysis, it can be known that when using the operating handle of the present application, when the tensioning member 200 releases the tensioning state of the traction rope 810, the operating member cannot be used to drive the traction wheel 310 to rotate, and thus cannot drive the active bending section to bend; that is, when using the operating handle, the tensioning member 200 must first be switched to the second position to tension the traction rope 810, and then the operating member can be used to drive the traction wheel 310 to rotate, thereby driving the active bending section to bend. This can avoid the situation where the tensioning member 200 is not used to tension the traction rope 810 before the control operating member is rotated, and thus solve the problem of bending delay of the active bending section when bending.

[0041] In some embodiments, the traction rope 810 may have a larger length. When the traction rope 810 is normally installed to the traction wheel 310 and the active bending section, the traction rope 810 is in a relaxed state. At this time, the tensioning member 200 can be rotated and arranged on the handle housing 100. The tensioning member 200 includes an abutment portion for abutting the traction rope 810. The abutment portion can be rotated to the radial direction of the arrangement of the traction rope 810 to support and tension the traction rope 810. That is, the abutment portion can drive the two traction ropes 810 of the endoscope to move in opposite directions along the radial direction and stretch the traction ropes 810, thereby increasing the distance between the two traction ropes 810, thereby tensioning the traction rope 810; and the abutment portion can be rotated to the axial direction of the arrangement of the traction rope 810 to release the tensioned state of the traction rope 810. At this time, the abutment portion no longer supports the traction rope 810, and the traction rope 810 returns to a relaxed state.

[0042] When the structure of this embodiment is used, the tensioning member 200 may also include a cam portion and a rack that can slide relative to the handle housing 100. The rack is connected to the handle housing 100 through a spring. The operating member is provided with meshing teeth. When the tensioning member 200 rotates from the first position to the second position, the abutment portion rotates to the radial direction of the traction rope 810, and the cam portion drives the rack to move in a direction close to the operating member until it meshes with the meshing teeth. Since the rack can only move relative to the handle housing 100 but cannot rotate, the operating member can achieve rotational limit cooperation with the handle housing 100 through the cooperation between the rack and the meshing teeth. When the tensioning member 200 rotates from the second position to the first position, the cam portion gradually avoids the rack, so that the spring drives the rack to reset.

[0043] See also Figure 4 and Fig. 9 In an optional embodiment, during the movement of the tensioning member 200 from the first position to the second position, the tensioning member 200 can drive the traction wheel 310 to move so that the traction rope 810 moves toward the proximal end of the handle housing 100 and tensions the traction rope 810.

[0044] The specific working process of this embodiment is as follows: when the tensioning member 200 is located at the first position, the first distance between the part of the traction wheel 310 connected to the traction rope 810 and the part of the active bending section connected to the traction rope 810 is less than the length of the traction rope 810, so that the traction rope 810 can be loose and redundant to be in a relaxed state; when the traction rope 810 needs to be tightened, the tensioning member 200 only needs to be switched from the first position to the second position. During this process, the tensioning member 200 will drive the traction wheel 310 to move so that the traction rope 810 moves toward the proximal end of the handle housing 100, thereby increasing the above-mentioned first distance, making the first distance equal to the length of the traction rope 810, so as to tighten the traction rope 810. This embodiment can reduce the length of the traction rope 810, and the shorter traction rope 810 can reduce the force transmission time, so that medical staff can respond and control the bending direction and angle of the endoscope more quickly, and improve the sensitivity of the operation.

[0045] In some embodiments, the traction wheel 310 and the handle housing 100 are slidably matched in the axial direction of the handle housing 100. When the tensioning member 200 moves from the first position to the second position, the tensioning member 200 drives the traction wheel 310 to slide in the direction close to the proximal end of the handle housing 100, thereby increasing the above-mentioned first distance. For example, the tensioning member 200 includes a cam portion, and the traction wheel 310 is driven to slide by rotating the tensioning member 200 and using the cam portion; or the tensioning member 200 is a movable push button, and the traction wheel 310 is pushed to slide by moving the push button.

[0046] When using this embodiment, the operating member may include a rotating shaft 320 and a lever 330. The rotating shaft 320 is rotatably disposed on the handle housing 100 and slides with the sliding groove on the handle housing 100. The traction wheel 310 is connected to the rotating shaft 320. The lever 330 is connected to the rotating shaft 320. The traction wheel 310 can be driven to rotate by toggling the lever 330. The tensioning member 200 can drive the rotating shaft 320 to slide along the sliding groove, thereby indirectly driving the traction wheel 310 to slide in the direction close to the proximal end of the handle housing 100. In this case, in the extending direction of the sliding groove, the sliding groove includes a limiting section and a rotating section. The rotating shaft 320 includes a limiting shaft section. When the tensioning member 200 is located in the first position, the limiting shaft section is located in the limiting section, and the limiting shaft section is rotationally limited with the inner wall of the limiting section. When the tensioning member 200 is located in the second position, the limiting shaft section is located in the rotating section, and the limiting shaft section can rotate relative to the rotating section. The limiting section here may be a square section, the rotating shaft 320 may be a square portion adapted to the square section, and the aperture of the rotating section is larger than the cross-sectional area of ​​the square portion.

[0047] See also Figure 3 , Fig. 9 , Figures 13 to 15 In an optional embodiment, the traction wheel 310 includes a first wheel body 311 and a second wheel body 312, the first wheel body 311 is rotationally matched with the handle housing 100, and the second wheel body 312 is rotationally matched with the first wheel body 311, and an avoidance gap 301 is formed between the first wheel body 311 and the second wheel body 312 along the circumference of the traction wheel 310, that is, the avoidance gap 301 is located on the circumference of the traction wheel 310. Optionally, the rotation axis 320 line between the first wheel body 311 and the handle housing 100 and the rotation axis 320 line between the first wheel body 311 and the second wheel body 312 can be colinear or parallel, and the present application is not limited to this.

[0048] The tensioning member 200 includes a tensioning protrusion 210, and the tensioning member 200 can move between a first position and a second position. When the tensioning member 200 is located at the second position, the tensioning member 200 can rotate relative to the handle housing 100. The tensioning protrusion 210 extends into the avoidance gap 301 and abuts against the first wheel body 311 and the second wheel body 312 respectively to limit the relative rotation of the first wheel body 311 and the second wheel body 312.

[0049] The specific working process of this embodiment is as follows: when the tensioning member 200 is located in the first position, the tensioning protrusion 210 is located outside the avoidance gap 301. Under the avoidance of the avoidance gap 301, the first wheel body 311 and the second wheel body 312 can rotate towards each other, thereby reducing the above-mentioned first distance so that the traction rope 810 switches to a relaxed state; in the process of the tensioning member 200 moving from the first position to the second position, the tensioning protrusion 210 of the tensioning member 200 will extend into the avoidance gap 301, and the tensioning protrusion 210 will push the first wheel body 311 and the second wheel body 312, so that the first wheel body 311 and the second wheel body 312 rotate away from each other until the first wheel body 311 and the second wheel body 312 rotate away from each other to a position where they abut each other, thereby tensioning the traction rope 810. After the tensioning protrusion 210 is used to limit the relative rotation of the first wheel body 311 and the second wheel body 312, the traction wheel 310 or the tensioning member 200 is controlled to rotate by the operating member, which can drive the overall rotation of the traction wheel 310 and the tensioning member 200, thereby pulling the traction rope 810 to achieve the bending of the active bending section.

[0050] It can be seen that the present embodiment utilizes the tensioning member 200 to drive the first wheel body 311 and the second wheel body 312 to rotate in opposite directions, thereby tensioning the traction rope 810. During the process of the first wheel body 311 and the second wheel body 312 rotating in opposite directions, the rotation axis 320 line between the traction wheel 310 and the handle housing 100 does not change, which can improve the rotation stability of the traction wheel 310.

[0051] Optionally, see Fig.13 and Fig.14 The outer circumferential surface of the first wheel body 311 is convexly provided with a first arc-shaped portion, and the outer circumferential surface of the second wheel body 312 is convexly provided with a second arc-shaped portion, the first end of the first arc-shaped portion and the first end of the second arc-shaped portion are located on the same side of the traction wheel 310, and an avoidance gap 301 is formed between the first end of the first arc-shaped portion and the first end of the second arc-shaped portion; when the first wheel body 311 and the second wheel body 312 rotate in opposite directions, the second end of the first arc-shaped portion and the second end of the second arc-shaped portion will abut against each other, thereby limiting the first wheel body 311 and the second wheel body 312 from continuing to rotate in opposite directions.

[0052] In some embodiments, the operating handle further includes an elastic member 820, which is connected to the handle housing 100 and the tensioning member 200 respectively, and the elastic member 820 can drive the tensioning member 200 to move from the second position to the first position, that is, the elastic member 820 can keep the tensioning member 200 in the first position to prevent the tensioning member 200 from being accidentally triggered and thereby tensioning the traction rope 810 when the traction rope 810 does not need to be tensioned. The elastic member 820 here can be a spring, a shrapnel, etc.

[0053] See also Figure 7 and Fig.11In an optional embodiment, the operating member includes a rotating shaft 320, which is rotatably disposed on the handle housing 100, and the rotating shaft 320 cooperates with the tensioning member 200 in rotation limit position, that is, the rotating shaft 320 cooperates with the tensioning member 200 in the circumferential upper limit position of the rotating shaft 320, and the tensioning member 200 can rotate with the rotating shaft 320. Optionally, the operating member may further include a lever 330, which is connected to the rotating shaft 320, and the rotating shaft 320 can be driven to rotate by toggling the lever 330.

[0054] When the tensioning member 200 is located in the first position, the tensioning member 200 and the handle housing 100 are rotationally limited, that is, the tensioning member 200 cannot rotate relative to the handle housing 100. Since the rotating shaft 320 and the tensioning member 200 are rotationally limited, the rotating shaft 320 is indirectly rotationally limited with the handle housing 100 through the tensioning member 200; when the tensioning member 200 is located in the second position, the tensioning member 200 and the handle housing 100 are released from the rotational limit cooperation, that is, the tensioning member 200 can rotate relative to the handle housing 100, so that the rotation of the rotating shaft 320 can drive the rotation of the tensioning member 200 and the traction wheel 310 as a whole, thereby driving the active bending section to bend.

[0055] In this embodiment, when the tensioning member 200 is in the first position, the tensioning member 200 cannot rotate relative to the handle housing 100. Since the rotating shaft 320 is engaged with the tensioning member 200 in a rotation limit position, the rotating shaft 320 cannot rotate relative to the handle housing 100. In this way, when an indicator for indicating the bending angle of the active bending section is connected to the rotating shaft 320, the position between the indicator and the handle housing 100 will not change. For example, the indicator is always in the zero position, which can prevent the indicator from indicating inaccurately during frequent movements.

[0056] In addition, when the tensioning member 200 moves from the first position to the second position, the tensioning member 200 will drive the first wheel body 311 and the second wheel body 312 to rotate in opposite directions to a position where the two wheels abut against each other. Therefore, when the tensioning member 200 is in the first position, no matter what changes occur in the relative positions of the first wheel body 311 and the second wheel body 312, as long as the tensioning member 200 moves to the second position, the relative positions of the first wheel body 311 and the second wheel body 312 will be fixed at the same position, thereby tensioning the traction rope 810, and the active bending section is in a straight state. It can be seen that after adopting the structure of this embodiment, if an indicator is connected to the rotating shaft 320, when the tensioning member 200 switches to the second position to tension the traction rope 810 and put the active bending section in a straight state, the indicator can be placed in the zero position, so that the bending angle of the active bending section can be more accurately reflected.

[0057] Of course, in addition to this embodiment, the tensioning member 200 can also cooperate with one of the first wheel body 311 and the second wheel body 312 in rotational position limiting, but not with the tensioning member 200 in rotational position limiting, and this application does not limit this. When using this embodiment, the tensioning member 200 can be fixedly sleeved on the outside of the rotating shaft 320, and the rotating shaft 320 and the handle housing 100 slide in the axial direction of the rotating shaft 320. The tensioning member 200 can drive the rotating shaft 320 to move relative to the handle housing 100 to cooperate with or release the rotational position limiting of the handle housing 100. For example, a square hole is provided on the handle housing 100, and a square portion is provided on the rotating shaft 320. By making the square portion cooperate or disengage with the square hole, the purpose of the rotational position limiting cooperation or release of the rotational position limiting cooperation between the rotating shaft 320 and the handle housing 100 is achieved.

[0058] See also Figure 3 , Fig.11 and Fig.16 In an optional embodiment, one of the tensioning member 200 and the handle housing 100 is provided with an insert recess 240, and the other is provided with an insert protrusion 110. When the tensioning member 200 is located in the first position, the insert protrusion 110 is plugged into the insert recess 240 to enable the tensioning member 200 and the handle housing 100 to rotate and limit the fit. When the tensioning member 200 is located in the second position, the insert protrusion 110 and the insert recess 240 are released from the plug-in fit.

[0059] In this embodiment, the insertion protrusion 110 and the insertion recess 240 are both arranged away from the rotation axis 320 of the tension member 200, and the insertion protrusion 110 and the insertion recess 240 are slidably matched; when the tension member 200 is in the first position, at least part of the insertion protrusion 110 extends into the insertion recess 240, and when a torque is applied to the tension member 200, the matching between the insertion protrusion 110 and the insertion recess 240 can limit the rotation of the tension member 200 under the action of the torque; when the tension member 200 is in the second position, the insertion protrusion 110 exits the insertion recess 240, and at this time, after the torque is applied to the tension member 200, the tension member 200 is no longer restricted and can rotate relative to the handle housing 100. In this embodiment, the rotation limit between the tension member 200 and the handle housing 100 is realized by plugging, and the structure is simple.

[0060] In order to prevent the first wheel body 311 and the second wheel body 312 from rotating too far in the opposite direction, so that the clearance of the avoidance gap 301 is too small, the tensioning protrusion 210 is not easy to enter the avoidance gap 301, which will make it difficult for the tensioning member 200 to switch to the second position to tension the traction rope 810. Figure 4 and Fig.15In an optional embodiment, the tensioning member 200 further includes a positioning protrusion 220. Along the rotation direction of the tensioning member 200, two ends of the positioning protrusion 220 are located between two ends of the tensioning protrusion 210. When the tensioning member 200 is located at the first position, at least a portion of the positioning protrusion 220 is located in the avoidance notch 301. Of course, the tensioning member 200 may also not include the positioning protrusion 220, and the present application is not limited thereto.

[0061] In this embodiment, along the rotation direction of the tensioning member 200, the two ends of the positioning protrusion 220 are located between the two ends of the tensioning protrusion 210, that is, the width between the two end surfaces of the positioning protrusion 220 is smaller than the width between the two end surfaces of the tensioning protrusion 210, so that when the positioning protrusion 220 is located in the avoidance gap 301, the inner wall of the avoidance gap 301 can be separated from the positioning protrusion 220, thereby providing a movable space for the rotation of the first wheel body 311 and the second wheel body 312; and when the tensioning member 200 is in the first position, at least part of the positioning protrusion 220 is located in the avoidance gap 301. With this arrangement, after the first wheel body 311 and the second wheel body 312 rotate toward each other for a certain distance, they can be blocked and limited by the positioning protrusion 220 to prevent the problem of the gap of the avoidance gap 301 being too small, thereby making it easy for the tensioning protrusion 210 to enter the avoidance gap 301, and then making it easy for the tensioning member 200 to switch to the second position to tension the traction rope 810.

[0062] See also Figure 4 and Fig.15 In an optional embodiment, the tensioning protrusion 210 includes a tensioning portion 211 and a guide portion 212. The tensioning portion 211, the guide portion 212 and the positioning protrusion 220 are connected in sequence. Guide surfaces are provided on both sides of the guide portion 212. The guide surfaces here can be inclined planes or curved surfaces, etc. The distance between the guide surfaces on both sides gradually decreases in the direction of moving from the first position to the second position. When the tensioning member 200 is in the first position, the guide surfaces on both sides are respectively arranged corresponding to the edges on both sides of the avoidance gap 301.

[0063] In this embodiment, when the tensioning member 200 is located in the first position, the guide surfaces on both sides are respectively set with the edges on both sides of the corresponding avoidance gap 301, so that in the process of the tensioning member 200 moving from the first position to the second position, the guide surfaces on both sides will respectively contact the edges on both sides of the avoidance gap 301, and each guide surface will apply a force to the edge of the corresponding avoidance gap 301, so that the first wheel body 311 and the second wheel body 312 rotate in opposite directions, thereby facilitating the tensioning part 211 to enter the avoidance gap 301.

[0064] In an optional embodiment, before the tensioning member 200 and the handle housing 100 release the rotation limit cooperation, at least a portion of the tensioning protrusion 210 extends into the avoidance gap 301 and abuts against the first wheel body 311 and the second wheel body 312 respectively.

[0065] After using the structure of this embodiment, before the tensioning member 200 and the handle housing 100 release the rotation limit cooperation, the traction rope 810 has been tensioned, that is, when the tensioning member 200 cannot rotate relative to the handle housing 100, the active bending section is in a straight state, which can prevent the rotation shaft 320 from driving the tensioning member 200 to rotate before the traction rope 810 is not tensioned, thereby preventing the active bending section from bending delay, and can also prevent the traction ropes 810 on both sides from being subjected to uneven force during the tensioning process, thereby protecting the active bending section. Of course, in other embodiments, after the tensioning member 200 and the handle housing 100 release the rotation limit cooperation, at least a portion of the tensioning protrusion 210 extends into the avoidance gap 301 and abuts against the first wheel body 311 and the second wheel body 312 respectively.

[0066] In some embodiments, the tensioning member 200 may also include a compression rod, one end of which passes through the handle housing 100 and is located outside the handle housing 100. The compression rod is slidably matched with the handle housing 100. When the compression rod is compressed, the tensioning member 200 can move from the first position to the second position.

[0067] See also Figure 1 and Fig.17 In an optional embodiment, the operating handle further includes an operating button 610, which can move relative to the handle housing 100 to drive the tensioning member 200 to move from the first position to the second position. In this embodiment, the operating button 610 is used to control the movement of the tensioning member 200 to tension the traction rope 810, which can improve the convenience of operation.

[0068] See also Figure 2 , Figure 3 and Fig.17 In an optional embodiment, the operating button 610 is rotatably disposed on the handle housing 100 and is located outside the handle housing 100. The operating button 610 has a spiral surface 611. The operating handle also includes a push piece 620. The push piece 620 is in contact with the tensioning member 200. The push piece 620 includes a sliding rod 621. One end of the sliding rod 621 passes through the handle housing 100 and is in contact with the spiral surface 611. When the operating button 610 is rotated, the spiral surface 611 can drive the tensioning member 200 to move.

[0069] The specific working process of this embodiment is as follows: when the operating button 610 is rotated, the spiral surface 611 on the operating button 610 will rotate relative to the sliding rod 621, thereby pushing the sliding rod 621, so that the push member 620 slides relative to the handle housing 100 in the direction of moving from the first position to the second position, thereby driving the tensioning member 200 connected to the push member 620 to move to the second position. And because the sliding rod 621 passes through the handle housing 100 and can slide relative to the handle housing 100, and the sliding rod 621 is set away from the rotation center of the operating button 610, the operating button 610 will only drive the sliding rod 621 to move but not to rotate, which can prevent the push member 620 from driving the tensioning member 200 to rotate and increase the difficulty of the tensioning protrusion 210 entering the avoidance gap 301. Of course, the operating button 610 can also drive the tensioning member 200 to move by moving, for example, the operating button 610 is a moving button, and this application is not limited to this.

[0070] It should be noted that when this embodiment is combined with the embodiment in which "one of the tensioning member 200 and the handle housing 100 is provided with an insertion recess 240 and the other is provided with an insertion protrusion 110", an avoidance hole 622 can be provided on the push member 620, and the insertion protrusion 110 is inserted into the avoidance hole 622.

[0071] See also Fig.16 and Fig.17 In an optional embodiment, the operating button 610 includes a limiting portion 612, and the limiting portion 612 cooperates with the handle housing 100 in the direction extending from the second position to the first position to prevent the operating button 610 from being separated from the handle housing 100. Further, the operating button 610 also includes a plurality of elastic arms arranged at intervals along the circumference of the operating button 610, each elastic arm is provided with a limiting portion 612, the handle housing 100 is provided with a mounting hole 130, and the mounting hole 130 is provided with a flange portion, and the limiting portion 612 cooperates with the flange portion in the direction extending from the second position to the first position.

[0072] See also Figure 3 , Figures 5 to 8 , Figures 10 to 12 In an optional embodiment, the operating handle further includes a destroying member 400 and a glue storage container 500. The glue storage container 500 is filled with glue liquid. After the glue liquid flows out of the glue storage container 500, it can solidify into an adhesive colloid in a preset time. One of the destroying member 400 and the glue storage container 500 is connected to the tensioning member 200, and the other is connected to the handle housing 100. Specifically, the one of the destroying member 400 and the glue storage container 500 connected to the handle housing 100 is located on the movement path of the other, so that the tensioning member 200 can drive one of the destroying member 400 and the glue storage container 500 to move during the movement, so that the destroying member 400 contacts the glue storage container 500 to destroy the glue storage container 500.

[0073] It should be noted that the glue liquid that can solidify into an adhesive colloid within a preset time after flowing out of the glue storage container 500 is a prior art. The present application does not limit the type of glue liquid, and the preset time is a time period, which can be flexibly selected according to the duration of the operation. The present application does not limit the preset time. For example, the preset time can be 0.5~2 hours, or 3~5 hours, etc.

[0074] When the tensioning member 200 is in the first position, the destroying member 400 is separated from the glue storage container 500; when the tensioning member 200 is in the second position, the destroying member 400 destroys the glue storage container 500 to allow the glue to flow into the gap between the operating member and the handle housing 100.

[0075] When the tensioning member 200 is used to tension the traction rope 810, the tensioning member 200 will move from the first position to the second position, so that one of the destroying member 400 and the glue storage container 500 can move relative to the handle shell 100 to destroy the glue storage container 500. After the glue storage container 500 is destroyed, the glue stored therein will flow into the gap between the operating member and the handle shell 100, and solidify into an adhesive colloid within a preset period of time, bonding the operating member to the handle shell 100 to prevent the operating member from moving relative to the handle shell 100, which can cause the operating member to lose its own function, that is, the function of the operating handle is abnormal, thereby solving the problem of disposable endoscopes being reused.

[0076] Furthermore, since the glue will solidify into an adhesive colloid only after flowing out of the glue storage container 500 for a preset time, that is to say, when the glue outflow time does not reach the preset time, the operating part and the handle housing 100 will not be bonded by the glue, and the operating handle functions normally at this time. Therefore, the use of the operating handle during this period is not limited by the number of times, so that the surgeon can fully perform diagnostic and treatment work in one operation.

[0077] Optionally, the destroying member 400 may be a plate-shaped member, and the destroying member 400 may destroy the glue storage container 500 by the impact force generated when it contacts the glue storage container 500, or the destroying member 400 may increase the pressure of the glue liquid in the glue storage container 500 by the extrusion force generated when it contacts the glue storage container 500, thereby bursting the glue storage container 500, and the glue storage container 500 may be a flexible capsule at this time; or, the destroying member 400 may also be a thorn-shaped member, which may make it easier for the destroying member 400 to destroy the glue storage container 500. The glue storage container 500 may be made of materials such as glass, plastic, and tin foil, and the present application does not limit the specific type of the glue storage container 500.

[0078] It should be noted that when the present embodiment is combined with an embodiment in which the tensioning member 200 includes an abutment portion, although the tensioning member 200 may be separated from the operating member in the axial direction of the handle shell 100, in this case, the glue storage container 500 can be arranged close to the tensioning member 200, and the glue storage container 500 and the tensioning member 200 can be arranged in a chamber, and then the glue in the chamber is guided to the gap between the operating member and the handle shell 100 through a glue channel (such as a pipe); or, the destroying member 400 and the glue storage container 500 are arranged close to the gap between the operating member and the handle shell 100, at this time, the destroying member 400 can be connected to the tensioning member 200 by a connecting line, and when the tensioning member 200 is rotated, the connecting member can be wrapped around the tensioning member 200, so that the destroying member 400 is close to the glue storage container 500 and destroys it.

[0079] See also Figure 7 and Fig.14 In an optional embodiment, the destroying member 400 is connected to the tensioning member 200, the glue storage container 500 is a deformable structural member, the glue storage container 500 is arranged on one side of the traction wheel 310 along its own axial direction, the traction wheel 310 is provided with a protrusion 313, at least part of the protrusion 313 is located on one side of the glue storage container 500 along the circumference of the traction wheel 310, and the protrusion 313 is separated from the glue storage container 500, so that a movable space can be provided for the rotation between the first wheel body 311 and the second wheel body 312. Optionally, the protrusion 313 here can be arranged on the first wheel body 311 or the second wheel body 312, or the first wheel body 311 and the second wheel body 312 are both provided with the protrusion 313.

[0080] In this embodiment, when the tensioning member 200 is switched to the second position, the destroying member 400 will destroy the glue storage container 500, and the tensioning member 200 and the traction wheel 310 can rotate relative to the handle housing 100, so the protrusion 313 on the traction wheel 310 can also rotate relative to the handle housing 100, and the glue storage container 500 is located on one side of the protrusion 313 along the circumference of the traction wheel 310, so the protrusion 313 will squeeze the glue storage container 500 during the rotation process, so that the glue storage container 500 is deformed to compress the volume of the glue storage container 500, so that the glue in the glue storage container 500 flows out quickly, which can improve the bonding effect. Of course, the protrusion 313 may not be provided on the traction wheel 310, and the application does not limit this.

[0081] See also Figure 5 , Fig.10 and Fig.15In an optional embodiment, the glue storage container 500 is arranged on one side of the traction wheel 310 along its own axis, the traction wheel 310 is provided with a through hole 314 extending along its own axis, the tensioning member 200 further includes an insertion portion 230, the insertion portion 230 is slidably matched with the through hole 314, and the destroying member 400 is connected to the insertion portion 230. Of course, the glue storage container 500 can also be arranged on the peripheral side of the traction wheel 310, and the present application does not limit the setting position of the glue storage container 500. It should be noted that this embodiment can be implemented independently of the next embodiment.

[0082] In this embodiment, the extending portion 230 of the tensioning member 200 is slidably matched with the through hole 314 , which can improve the stability of the tensioning member 200 sliding between the first position and the second position, so that the tensioning member 200 can be accurately switched to the second position.

[0083] In addition, when the present embodiment is combined with the embodiment of “the traction wheel 310 cooperates with the handle housing 100 to form the installation cavity 101”, since the glue storage container 500 is arranged on one side of the traction wheel 310 along its own axial direction, after the glue storage container 500 is damaged, the glue in the glue storage container 500 will be blocked by the traction wheel 310 and the extension portion 230, thereby preventing the glue from flowing to the side of the traction wheel 310 away from the installation cavity 101, which will reduce the amount of glue flowing into the gap between the rotating shaft 320 and the handle housing 100 that forms the installation cavity 101, thereby reducing the bonding strength between the rotating shaft 320 and the handle housing 100.

[0084] For further embodiments, please refer to Figure 5 When the tensioning member 200 is located at the first position, all parts of the destroying member 400 are located in the through hole 314 , and the destroying member 400 and a part of the glue storage container 500 are arranged opposite to each other in the axial direction of the through hole 314 .

[0085] In this embodiment, when the tensioning member 200 is located at the first position, all parts of the destroying member 400 are located in the through hole 314, that is, the destroying member 400 does not extend out of the hole edge of the through hole 314 facing the side of the glue storage container 500. Since the glue storage container 500 is located on one side of the traction wheel 310, the destroying member 400 does not extend out of the through hole 314, which can reduce the risk of the destroying member 400 destroying the glue storage container 500 during the assembly of the glue storage container 500, the destroying member 400 and the tensioning member 200. Of course, when the tensioning member 200 is located at the first position, a part of the destroying member 400 can also extend into the through hole 314, and this application is not limited to this.

[0086] In some embodiments, the operating member includes a rotating shaft 320, and the glue can flow into the gap between the rotating shaft 320 and the handle housing 100. In other embodiments, the operating member may include a thumbwheel, which is connected to one of the first wheel body 311 and the second wheel body 312 and cooperates with the rotation limit thereof, and the thumbwheel is rotatably disposed on the handle housing 100, and a part of the thumbwheel is located inside the handle housing 100, and another part is exposed outside the handle housing 100, and the traction wheel 310 can be driven to rotate by rotating the thumbwheel to drive the active bending section to bend, and the glue can flow into the gap between the thumbwheel and the handle housing 100.

[0087] See also Figure 5 In an optional embodiment, the traction wheel 310 cooperates with the handle housing 100 to form an installation cavity 101, the glue storage container 500 is disposed in the installation cavity 101, and the rotating shaft 320 passes through the installation cavity 101, and the glue can flow into the gap between the rotating shaft 320 and the part of the handle housing 100 that forms the installation cavity 101.

[0088] In the present embodiment, the traction wheel 310 cooperates with the handle housing 100 to form the installation cavity 101. Compared with the embodiment in which the installation cavity 101 is formed by the handle housing 100 alone, the present embodiment can simplify the structure of the handle housing 100; and the glue storage container 500 is arranged in the installation cavity 101. After the glue in the glue storage container 500 flows out, the installation cavity 101 can accommodate the glue to prevent the glue from dispersing and flowing everywhere. This can specifically guide the glue to the gap between the rotating shaft 320 and the part of the handle housing 100 that forms the installation cavity 101, thereby improving the bonding effect between the rotating shaft 320 and the handle housing 100.

[0089] Optionally, the handle housing 100 includes a mounting member 120, a mounting groove is formed in the mounting member 120, the traction wheel 310 covers the mounting groove and cooperates with the mounting groove to form a mounting cavity 101, the rotating shaft 320 passes through the mounting member 120 and cooperates with the tensioning member 200 to rotate and limit, and the glue can flow into the gap between the mounting member 120 and the rotating shaft 320.

[0090] See also Figure 5 and Figure 6 In an optional embodiment, at least one of the handle housing 100 and the operating member is provided with a glue storage groove 121, and the glue liquid can flow into the glue storage groove 121 to form a stopper, and the adhesive colloid includes the stopper, and the operating member and the handle housing 100 can be rotated and limited by the stopper.

[0091] In this embodiment, after the glue storage container 500 is destroyed, the glue in the glue storage container 500 will flow into the gap between the operating member and the handle housing 100, thereby bonding the operating member to the handle housing 100. In addition, after the glue flows into the gap between the operating member and the handle housing 100, the glue will flow into the glue storage groove 121 and form a rotation stop portion within a preset time. The bonding colloid includes a rotation stop portion. The operating member and the handle housing 100 can be matched by rotation limiting of the rotation stop portion, so as to further prevent the operating member from rotating relative to the handle housing 100 by using the rotation stop portion, so as to ensure that the operating handle does not function abnormally and cannot be reused. Of course, the handle housing 100 and the operating member may not be provided with the above-mentioned glue storage groove 121, and this application does not limit this.

[0092] See also Figure 1 The embodiment of the present application also discloses an endoscope, including the above-mentioned operating handle, so that the endoscope has the beneficial effects of the above-mentioned operating handle, which will not be repeated here. The endoscope referred to in the embodiment of the present application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiment of the present application does not specifically limit the type of endoscope.

[0093] The above embodiments of the present application focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here. The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present application, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present application and the claims, all of which are within the protection of the present application.

Claims

1. An operating handle of an endoscope, characterized in that: The invention comprises a handle housing (100), a traction wheel (310), an operating member and a tensioning member (200); the traction wheel (310) is rotatably arranged on the handle housing (100); the operating member can rotate relative to the handle housing (100) and drive the traction wheel (310) to rotate so as to pull the traction rope (810) to bend the active bending section; and the tensioning member (200) is movably arranged on the handle housing (100) and can move between a first position and a second position. When the tensioning member (200) is located at the first position, the tensioning member (200) releases the tensioning state of the traction rope (810), and the operating member and the handle housing (100) are rotationally limited in cooperation; when the tensioning member (200) is located at the second position, the tensioning member (200) tensions the traction rope (810), and the operating member and the handle housing (100) are released from the rotationally limited cooperation.

2. The operating handle according to claim 1, characterized in that: During the movement of the tensioning member (200) from the first position to the second position, the tensioning member (200) can drive the traction wheel (310) to move, so as to move the traction rope (810) toward the proximal end of the handle housing (100) and tension the traction rope (810).

3. The operating handle according to claim 2, characterized in that: The traction wheel (310) comprises a first wheel body (311) and a second wheel body (312); the first wheel body (311) is rotationally matched with the handle housing (100); the second wheel body (312) is rotationally matched with the first wheel body (311); and an avoidance gap (301) is formed between the first wheel body (311) and the second wheel body (312) along the circumference of the traction wheel (310); The tensioning member (200) comprises a tensioning protrusion (210), and the tensioning member (200) is movable between the first position and the second position. When the tensioning member (200) is located at the second position, the tensioning member (200) is rotatable relative to the handle housing (100), and the tensioning protrusion (210) extends into the avoidance notch (301) and abuts against the first wheel body (311) and the second wheel body (312) respectively, so as to limit the relative rotation of the first wheel body (311) and the second wheel body (312).

4. The operating handle according to claim 3, characterized in that: The operating member comprises a rotating shaft (320), the rotating shaft (320) being rotatably disposed on the handle housing (100), and the rotating shaft (320) and the tensioning member (200) being rotationally limitedly matched; When the tensioning member (200) is located at the first position, the tensioning member (200) and the handle housing (100) are in rotational limiting cooperation; when the tensioning member (200) is located at the second position, the tensioning member (200) and the handle housing (100) are released from rotational limiting cooperation.

5. The operating handle according to claim 4, characterized in that: One of the tensioning member (200) and the handle housing (100) is provided with an insertion recess (240), and the other is provided with an insertion protrusion (110); when the tensioning member (200) is located at the first position, the insertion protrusion (110) is plugged into and matched with the insertion recess (240) so that the tensioning member (200) and the handle housing (100) are rotationally limitedly matched; when the tensioning member (200) is located at the second position, the insertion protrusion (110) and the insertion recess (240) are released from the plugging and matching.

6. The operating handle according to claim 3, characterized in that: The tensioning member (200) further comprises a positioning protrusion (220), wherein along the rotation direction of the tensioning member (200), two ends of the positioning protrusion (220) are located between two ends of the tensioning protrusion (210), and when the tensioning member (200) is located at the first position, at least a portion of the positioning protrusion (220) is located within the avoidance notch (301).

7. The operating handle according to claim 6, characterized in that: The tensioning protrusion (210) comprises a tensioning portion (211) and a guiding portion (212); the tensioning portion (211), the guiding portion (212) and the positioning protrusion (220) are connected in sequence; both sides of the guiding portion (212) are provided with guiding surfaces; and the distance between the guiding surfaces on both sides gradually decreases in the direction of movement from the first position to the second position; When the tensioning member (200) is located at the first position, the guide surfaces on both sides are respectively arranged corresponding to the edges on both sides of the avoidance gap (301).

8. The operating handle according to claim 3, characterized in that: Before the tensioning member (200) and the handle housing (100) are released from the rotation limit engagement, at least a portion of the tensioning protrusion (210) extends into the avoidance notch (301) and abuts against the first wheel body (311) and the second wheel body (312), respectively; and / or, The operating handle further comprises an operating button (610), wherein the operating button (610) is movable relative to the handle housing (100) so as to drive the tensioning member (200) to move from the first position to the second position.

9. The operating handle according to any one of claims 1 to 8, characterized in that: The operating handle further comprises a destroying member (400) and a glue storage container (500), wherein the glue storage container (500) is filled with glue liquid, and the glue liquid can solidify into an adhesive colloid within a preset time after flowing out of the glue storage container (500), and one of the destroying member (400) and the glue storage container (500) is connected to the tensioning member (200), and the other is connected to the handle housing (100); When the tensioning member (200) is located at the first position, the destroying member (400) is arranged to be separated from the glue storage container (500); when the tensioning member (200) is located at the second position, the destroying member (400) destroys the glue storage container (500) to allow the glue liquid to flow into the gap between the operating member and the handle housing (100).

10. An endoscope, characterized in that: The invention comprises an operating handle as claimed in any one of claims 1 to 9.

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