Endoscope operating handle and endoscope

Abstract

The application provides an endoscope operating handle and an endoscope, and relates to the technical field of endoscope equipment. The endoscope operating handle comprises a shell, a drum wheel, a lever, a button, a locking disc and a brake pad. The drum wheel is rotatably installed on the shell and has a connecting shaft. The connecting shaft penetrates through the shell and is fixedly connected with the lever. The brake pad and the locking disc are both sleeved on the connecting shaft. The locking disc is located on the side of the brake pad away from the drum wheel. The button is pressingly installed on the shell. The button is configured to push the locking disc to rotate when pressed, so that the brake pad is pressed against the drum wheel to lock the drum wheel, or the brake pad is released from the drum wheel, so that the drum wheel can rotate with the lever. The lever can drive the drum wheel to rotate and adjust the movement posture of the endoscope. By pressing the button, the locking disc is driven to rotate, and the friction between the brake pad and the drum body of the drum wheel is adjusted, so that the drum wheel is unlocked and locked. The operator can operate with one hand, the operation is convenient, and the use experience is improved.

Description

Technical Field

[0001] This invention relates to the field of endoscopic equipment technology, and more particularly to an endoscope operating handle and an endoscope. Background Technology

[0002] An endoscope consists of an operating section and an insertion section. Typically, the surgeon holds the operating section with one hand to control the bending direction of the insertion section, and holds the insertion section with the other hand to insert the endoscope. Especially during surgical treatments, when the surgeon needs to take biopsies or make electrosurgical cuts on lesions, one hand is required to hold the bending lever to keep the curved tip of the endoscope aligned with the lesion, while the other hand holds the insertion section to stabilize the lens and ensure accurate cutting of the lesion by the high-frequency electrosurgical unit. This operation requires the surgeon to constantly apply force to the bending lever with their right thumb to stabilize the bending angle, which can lead to fatigue over extended periods. Summary of the Invention

[0003] This invention provides an endoscope operating handle and an endoscope to solve the shortcomings of existing technologies, such as doctors experiencing fatigue and poor user experience during long-term operation.

[0004] This invention provides an endoscope operating handle, comprising: a housing, a drum, a lever, a button, a locking disc, and a brake pad. The drum has a connecting shaft and is rotatably mounted on the housing. The connecting shaft extends through the housing and is fixedly connected to the lever. The brake pad and the locking disc are both sleeved on the connecting shaft. The locking disc is located on the side of the brake pad away from the drum. The button is pressable and mounted on the housing. The button is configured to push the locking disc to rotate when pressed, thereby causing the brake pad to press against the drum to lock the drum, or to release the brake pad from the drum so that the drum can rotate with the lever.

[0005] According to an endoscope operating handle provided by the present invention, the inner wall of the housing is provided with a receiving groove, the brake pad and the locking disc are both received in the receiving groove, the groove wall of the receiving groove is provided with a clearance notch, the clearance notch is used for the button to drive the locking disc to rotate; the bottom of the receiving groove is provided with a first locking tooth, the locking disc has a second locking tooth, the second locking tooth is engaged with the first locking tooth, and as the locking disc rotates, the protrusion of the first locking tooth switches between two states: engaged with the concave part of the second locking tooth and engaged with the protrusion of the second locking tooth.

[0006] According to the present invention, an endoscope operating handle is provided, wherein the groove wall of the receiving groove is provided with a locking notch, and a connecting post protrudes from the outer edge of the brake pad. The connecting post is engaged with the locking notch. During the switching of the state of the first locking tooth and the second locking tooth, the brake pad moves axially along the connecting shaft.

[0007] According to an endoscope operating handle provided by the present invention, the protrusion of the first locking tooth or the protrusion of the second locking tooth has at least one stepped surface.

[0008] An endoscope operating handle according to the present invention further includes a push rod, and the outer periphery of the locking disc is provided with ratchet teeth. One end of the push rod is mounted on the button, and the other end of the push rod abuts against the recess of the ratchet teeth, so that the push rod can push the locking disc to rotate when the button is pressed.

[0009] According to the present invention, an endoscope operating handle is provided, wherein the button includes a pressing member, an elastic member, and a button base. The housing is provided with a positioning hole. The button base includes a base body and a shaft fixed to the base body. The shaft extends through the positioning hole to the outside of the housing. The push rod is rotatably mounted on the base body. The pressing member is fixed to one end of the shaft extending out of the housing. The elastic member is clamped between the outer wall of the housing and the pressing member.

[0010] According to the present invention, an endoscope operating handle is provided, wherein the elastic element is a spring, and the spring is sleeved on the portion of the button seat that extends out of the housing.

[0011] According to the present invention, an endoscope operating handle is provided, wherein the lever is provided with an irregular hole, and the end of the connecting shaft is inserted into the irregular hole to make an interference fit with the lever.

[0012] An endoscope operating handle according to the present invention further includes a locking shaft, the connecting shaft having a through hole, the wall of the through hole being at least partially provided with an internal thread, the locking shaft being inserted into the through hole, the locking shaft having a threaded section, the threaded section engaging with the internal thread.

[0013] The present invention also provides an endoscope including an operating part and an insertion part connected to the operating part, the operating part having an endoscope operating handle as described above.

[0014] The endoscope operating handle and endoscope provided by this invention can drive the drum wheel to rotate by moving the lever, thereby adjusting the movement posture of the endoscope. By pressing the button, the locking disc is driven to rotate, thereby adjusting the friction between the brake pad and the drum wheel, realizing the unlocking and locking of the drum wheel. The operator can operate with one hand, which is convenient and improves the user experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the endoscope operating handle provided by the present invention.

[0017] Figure 2 yes Figure 1 One of the exploded schematic diagrams of the endoscope operating handle shown.

[0018] Figure 3 yes Figure 1 The second exploded view of the endoscope operating handle is shown.

[0019] Figure 4 yes Figure 1 The diagram shows a cross-sectional view of the endoscope operating handle.

[0020] Figure 5 This is a schematic diagram of the structure of the rear shell provided by the present invention.

[0021] Figure 6 This is a schematic diagram of the locking disc provided by the present invention.

[0022] Figure 7 This is a partial schematic diagram of the state when the protrusions of the first locking tooth and the second locking tooth in the endoscope operating handle provided by the present invention abut against each other.

[0023] Figure 8 This is a partial schematic diagram showing the state of the first locking tooth protruding and the second locking tooth recessed in the endoscope operating handle provided by the present invention when they abut against each other.

[0024] Figure 9 This is a cross-sectional view of the installation of the pressing component provided by the present invention.

[0025] Figure 10 This is a partial structural diagram of the pressing component provided by the present invention in a non-pressing state.

[0026] Figure 11 yes Figure 10 The diagram shown is a schematic of the structure when the pressing component is in the pressing state.

[0027] Figure 12 This is a schematic diagram showing the assembly of the pressing component, drum, locking disc, and brake pads provided by the present invention.

[0028] Figure 13 This is a schematic diagram of the mating of the pressing component and the front shell provided by the present invention.

[0029] Figure 14 This is a schematic diagram showing the installation and assembly of the pressing component, drum wheel, locking disc, and brake pads provided by the present invention.

[0030] Figure 15 This is one of the partial structural schematic diagrams of the endoscope operating handle provided by the present invention.

[0031] Figure 16 This is the second partial structural schematic diagram of the endoscope operating handle provided by the present invention.

[0032] Figure 17 This is the third partial structural schematic diagram of the endoscope operating handle provided by the present invention.

[0033] Figure 18 This is a schematic diagram of the lever provided by the present invention.

[0034] Figure 19 This is a schematic diagram of the structure of the drum provided by the present invention.

[0035] Figure label: 10. Housing; 11. Front housing; 111. Positioning hole; 12. Rear housing; 121. Mounting hole; 13. Top cover; 14. Receiving groove; 15. Clearance notch; 16. First locking tooth; 17. Locking notch; 20. Drum wheel; 21. Wheel body; 22. Connecting shaft; 23. Inlay; 24. Through hole; 30. Lever; 31. Irregular hole; 40. Button; 41. Pressing element; 42. Elastic element; 43. Button seat; 431. Seat body; 432. Shaft body; 44. Push rod; 50. Locking disc; 51. Second locking tooth; 52. Racket tooth; 501. First disc body; 502. Second disc body; 60. Brake pad; 61. Connecting post; 70. Locking shaft; 71. Decorative piece. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0037] The terms "first" and "second" in the specification and claims of this invention may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] The following is combined Figures 1-19 The endoscope operating handle of the present invention is described.

[0041] This invention provides an endoscope operating handle, such as Figures 1 to 4 As shown, it includes a housing 10, a drum 20, a lever 30, a button 40, a locking disc 50, and a brake pad 60. The drum 20 has a connecting shaft 22, and the drum 20 is rotatably mounted on the housing 10. The connecting shaft 22 extends out of the housing 10 and is fixedly connected to the lever 30. Figure 4 As shown, both the brake pad 60 and the locking disc 50 are sleeved on the connecting shaft 22, with the locking disc 50 located on the side of the brake pad 60 away from the drum 20. A button 40 is pressable and mounted on the housing 10. The button 40 is configured to, upon a single press, rotate the locking disc 50, thereby causing the brake pad 60 to press against the drum 20 to lock it, or to release the brake pad 60 from the drum 20 so that the drum 20 can rotate with the movement of the lever 30.

[0042] like Figure 19As shown, the drum 20 includes a wheel body 21 and a connecting shaft 22. One end of the connecting shaft 22 is connected to the wheel body 21, and the other end extends out of the housing 10 and is fixedly connected to the lever 30. The wheel body 21 and the connecting shaft 22 are integrally formed, and the connecting shaft 22 is rotatable relative to the housing 10. A traction wire is installed on the wheel body 21. When the operator moves the lever 30, the lever 30 drives the drum 20 to rotate, and the rotation of the wheel body 21 causes the traction wire to retract, thereby adjusting the movement posture of the endoscope tip.

[0043] Both the brake pad 60 and the locking disc 50 are mounted on the connecting shaft 22, and the locking disc 50 can move linearly along the axial direction of the connecting shaft 22. The button 40 can directly push the locking disc 50 to rotate, or it can be driven to rotate the locking disc 50 through a mechanism such as a rocker arm and gears.

[0044] During a single press of button 40, locking disc 50 rotates by a preset angle. In use, the operator adjusts the endoscope's position using lever 30. Once adjusted, pressing button 40 causes locking disc 50 to rotate. Locking disc 50 pushes brake pad 60 along the axial direction of connecting shaft 22 towards the wheel body 21 of drum 20, increasing the resistance to rotation of wheel body 21 and ultimately locking the endoscope. When the endoscope's position needs adjustment, pressing button 40 again rotates locking disc 50 by a preset angle, releasing brake pad 60. This reduces the resistance between brake pad 60 and wheel body 21, allowing drum 20 to rotate with lever 30.

[0045] like Figure 1 As shown, the housing 10 includes a front housing 11, a rear housing 12, and a top cover 13. The front housing 11 and rear housing 12 are fixedly connected, forming a handle-like structure with one open end. The top cover 13 is fitted onto the open end by a snap-fit ​​or other fixing method to seal the internal mounting structure of the housing 10. A button 40 is mounted on the front housing 11, and a lever 30 is mounted on the side wall of the rear housing 12, such that the button 40 is mounted on the front of the housing 10, and the lever 30 is located on the side of the housing 10. In use, as... Figure 15 As shown, the operator's thumb is positioned at button 40 for easy pressing, while the index or middle finger is positioned at lever 30 for easy operation. Thus, button 40 and lever 30 can be operated with one hand, resulting in high operating efficiency.

[0046] The endoscope operating handle provided in this embodiment of the invention can rotate the drum wheel 20 by moving the lever 30, thereby adjusting the movement posture of the endoscope. By pressing the button 40, the locking disc 50 is rotated, thereby adjusting the friction between the brake pad 60 and the wheel body 21 of the drum wheel 20, realizing the unlocking and locking of the drum wheel 20. The operator can operate it with one hand, which is convenient and improves the user experience.

[0047] In one specific embodiment, such as Figure 4 and Figure 5 As shown, the inner wall of the housing 10 is provided with a receiving groove 14, in which both the brake pad 60 and the locking disc 50 are received. The groove wall of the receiving groove 14 is provided with a clearance notch 15, which is used for the button 40 to drive the locking disc 50 to rotate. Figures 6 to 8 As shown, the bottom of the receiving groove 14 is provided with a first locking tooth 16, and the locking disc 50 has a second locking tooth 51, which fits against the first locking tooth 16. As the locking disc 50 rotates, the protrusion of the first locking tooth 16 switches between two states: fitting against the recess of the second locking tooth 51 and fitting against the protrusion of the second locking tooth 51.

[0048] like Figure 5 As shown, a circular protrusion is provided on the inner wall of the housing 10, and the circular protrusion and the inner wall of the housing 10 form a receiving groove 14. The groove wall of the receiving groove 14 is provided with a clearance notch 15 to avoid the push rod 44, for transmitting the driving force of the button 40. The first locking tooth 16 has multiple staggered protrusions and recesses, which extend radially along the receiving groove 14. Similarly, the second locking tooth 51 also has multiple staggered protrusions and recesses, which extend radially along the locking disc 50. It can be understood that the second locking tooth 51 can be arranged in a part of the locking disc 50, as long as state switching can be achieved.

[0049] The locking disc 50 rotates, causing the protrusion of the first locking tooth 16 to abut against the protrusion of the second locking tooth 51 (as shown). Figure 7 When the locking disc 50 pushes the brake pad 60 outward from the receiving groove 14, it presses against the wheel body 21 of the drum 20, thereby locking the drum 20. The rotation of the locking disc 50 causes the protrusion of the first locking tooth 16 to abut against the recess of the second locking tooth 51 (as shown). Figure 8 When (as shown), the locking disc 50 releases the brake pad 60, and the wheel body 21 of the drum 20 can rotate freely.

[0050] When the protrusion of the first locking tooth 16 abuts against the protrusion of the second locking tooth 51, pressing the button 40 once will cause the protrusion of the first locking tooth 16 to abut against the recess of the second locking tooth 51. Pressing the button 40 again will cause the protrusion of the first locking tooth 16 to abut against another protrusion of the second locking tooth 51.

[0051] The endoscope operating handle provided in this embodiment of the invention adjusts the distance between the brake pad 60 and the drum 20 by changing the engagement state of the first locking tooth 16 and the second locking tooth 51. When the protrusion of the first locking tooth 16 and the protrusion of the second locking tooth 51 are engaged, the drum 20 is locked. When the protrusion of the first locking tooth 16 and the recess of the second locking tooth 51 are engaged, the drum 20 is unlocked.

[0052] like Figure 5 and Figure 17As shown, the groove wall of the receiving groove 14 is provided with a locking notch 17, and a connecting post 61 protrudes from the outer edge of the brake pad 60. The connecting post 61 is engaged with the locking notch 17. During the switching of the engagement state between the first locking tooth 16 and the second locking tooth 51, the brake pad 60 moves axially along the connecting shaft 22.

[0053] To prevent the brake pad 60 from rotating with the locking disc 50, a locking notch 17 is provided in the groove wall of the receiving groove 14 to engage the connecting post 61 on the brake pad 60. When the locking disc 50 rotates, due to the engagement of the connecting post 61 and the locking notch 17, as the protrusion of the first locking tooth 16 rotates from the recess of the second locking tooth 51 to the protrusion of the second locking tooth 51, the brake pad 60 is pushed axially toward the wheel body 21 of the drum 20. Similarly, due to the engagement of the connecting post 61 and the locking notch 17, as the locking disc 50 rotates, causing the protrusion of the first locking tooth 16 to rotate from the protrusion of the second locking tooth 51 to the recess of the second locking tooth 51, the brake pad 60 is released, and the drum 20 can rotate normally.

[0054] Optionally, multiple connecting posts 61 can be used to provide better guidance for the translation of the brake pad 60. For example, two connecting posts 61 can be spaced apart along the outer edge of the brake pad 60; correspondingly, the groove wall of the receiving groove 14 has two locking notches 17. The two connecting posts 61 and the two locking notches 17 are fitted together in a one-to-one correspondence. Figure 14 , Figure 16 and Figure 17 As shown, three connecting posts 61 are arranged at intervals along the outer edge of the brake pad 60; correspondingly, the groove wall of the receiving groove 14 is provided with three locking notches 17.

[0055] The housing 10 has a mounting hole 121 through which the connecting shaft 22 passes, and the mounting hole 121 is located at the bottom of the receiving groove 14. Figure 5 As shown, mounting hole 121 is located on rear cover 12.

[0056] The protrusion of the first locking tooth 16 or the protrusion of the second locking tooth 51 has at least one stepped surface. Alternatively, only the protrusion of the first locking tooth 16 may have a stepped surface, and the protrusion of the second locking tooth 51 may abut against the top surface, recess, and stepped surface of the protrusion of the first locking tooth 16, respectively, forming multiple positions.

[0057] For example, the protruding side of the first locking tooth 16 has a stepped surface, thus forming a three-level locking position on that side of the first locking tooth 16. When the second locking tooth 51 engages with the recess of the first locking tooth 16, it is not locked. With a single press of the button, the protrusion of the second locking tooth 51 moves from the recess of the first locking tooth 16 to the stepped surface of the first locking tooth 16. When the second locking tooth 51 abuts against the stepped surface of the first locking tooth 16, a locking damping sensation occurs. With a second press of the button, the protrusion of the second locking tooth 51 moves from the stepped surface of the first locking tooth 16 to the top of the protrusion of the first locking tooth 16. When the second locking tooth 51 abuts against the top of the protrusion of the first locking tooth 16, complete locking is achieved. Of course, the first locking tooth 16 may also have two or three stepped surfaces to form a multi-level locking position. The embodiments of the present invention do not specifically limit the number of stepped surfaces. Understandably, the protrusion of the first locking tooth 16 can be provided with stepped surfaces on both sides, thus forming multiple unlocking positions during the unlocking process.

[0058] Similarly, one or more stepped surfaces can be provided only on the protrusion of the second locking tooth 51 to form multiple locking positions.

[0059] Therefore, by setting multiple stepped surfaces on the protrusion of the first locking tooth 16 or the protrusion of the second locking tooth, multiple different locking force levels are formed to meet the adjustment needs under different requirements.

[0060] In one embodiment, such as Figure 3 , Figure 6 , Figure 10 and Figure 16 As shown, the endoscope operating handle also includes a push rod 44, and a ratchet 52 is provided on the outer periphery of the locking disc 50. One end of the push rod 44 is installed on the button 40, and the other end of the push rod 44 abuts against the recess of the ratchet 52, so that the push rod 44 can push the locking disc 50 to rotate when the button 40 is pressed.

[0061] like Figure 6 As shown, the locking disc 50 includes a first disc body 501 and a second disc body 502. The diameter of the first disc body 501 is larger than that of the second disc body 502. The first disc body 501 and the second disc body 502 are connected in a stepped shape. A ratchet tooth 52 is located on the outer periphery of the second disc body 502, and a second locking tooth 51 is located on the side of the first disc body 501 away from the second disc body 502. Figure 12 As shown, push rod 44 is located in the gap between the first disc 501 and the brake pad 60.

[0062] When button 40 is pressed, as Figure 11 As shown, the push rod 44 moves linearly with the movement of the button 40. Since the end of the push rod 44 abuts against the recess of the ratchet 52 of the locking disc 50, the linear movement of the push rod 44 will push the locking disc 50 to rotate. When the button 40 is reset, as shown... Figure 10As shown, the push rod 44 moves away from the locking disc 50. In one embodiment, the push rod 44 falls into the recess of another ratchet 52 under the action of gravity. In another embodiment, an elastic reset member is installed between the push rod 44 and the button seat 43, and the push rod 44 falls into the recess of another ratchet 52 under the rebound force of the gravity elastic reset member. Optionally, the elastic reset member is a spring. Thus, when the button 40 is pressed again, the push rod 44 will move linearly again to push the locking disc 50 to rotate. Since the travel distance of the push rod 44 under the action of the button 40 is fixed, the angle through which the locking disc 50 rotates in a single operation is fixed. The operator can adjust the rotation set angle of the locking disc 50 by pressing the button 40, and this set angle is consistent with the angle through which the locking disc 50 rotates in a single operation.

[0063] like Figure 9 and Figure 13 As shown, button 40 includes a pressing member 41, an elastic member 42, and a button base 43. Button base 43 includes a base 431 and a shaft 432 fixed to the base 431. Housing 10 is provided with a positioning hole 111, through which the shaft 432 extends to the outside of housing 10. Push rod 44 is rotatably mounted on base 431. Pressing member 41 is fixed to one end of shaft 432 extending out of housing 10. Elastic member 42 is sandwiched between the outer wall of housing 10 and pressing member 41.

[0064] like Figure 13 As shown, the button base 43 includes a base 431 and a shaft 432, which are integrally formed with the base 431 and are located in the center of the base 431. The end of the push rod 44 is rotatably mounted on the base 431 via a pin. A positioning hole 111 is provided in the front housing 11, and the shaft 432 extends out of the housing 10 through the positioning hole 111, allowing it to move back and forth along the axial direction of the positioning hole 111 under external pressure. The base 431 is located inside the housing 10 and abuts against the inner wall of the housing 10 to prevent the button 40 from detaching from the housing 10.

[0065] The pressing element 41 is a flat cap-shaped part used to provide a pressing point for the operator. In its natural state, the surface of the pressing element 41 protrudes above the outer wall of the housing 10. When the pressing element 41 is pressed, the shaft 432 moves linearly within the positioning hole 111, driving the push rod 44 to push the locking disc 50. The elastic element 42 stores force during the pressing process. After the pressing element 41 is released, the elastic element 42 rebounds, pushing the pressing element 41 outward from the housing 10, causing the end of the push rod 44 to move to the recess of the ratchet 52.

[0066] Specifically, the elastic element 42 is a spring, which is sleeved on the portion of the shaft 432 of the button seat 43 that extends out of the housing 10. Alternatively, multiple springs can be arranged circumferentially around the shaft 432. In addition, the elastic element 42 can also be a leaf spring, a gas spring, etc.

[0067] like Figure 18 and Figure 19 As shown, the lever 30 has a shaped hole 31, and the end of the connecting shaft 22 is inserted into the shaped hole 31 to provide an interference fit with the lever 30. The end of the connecting shaft 22 is shaped, and its shape matches the shape of the shaped hole 31. The connecting shaft 22 is inserted into the shaped hole 31 to fix the connecting shaft 22 to the lever 30. Figure 19 As shown, the end of the connecting shaft 22 is waist-shaped, and correspondingly, the irregular hole 31 is also waist-shaped. When the operator moves the lever 30, the drum 20 moves accordingly, and the traction wire installed on the drum 20 pulls the end of the endoscope to bend.

[0068] like Figure 2 , Figure 3 and Figure 19 As shown, the endoscope operating handle also includes a locking shaft 70. The connecting shaft 22 has a through hole 24, the wall of which is at least partially provided with internal threads. The locking shaft 70 is inserted into the through hole 24 and has a threaded section that engages with the internal threads.

[0069] like Figure 2 and Figure 3 As shown, a decorative piece 71 is provided at one end of the locking shaft 70 extending from the housing 10. The material and size of the decorative piece 71 are consistent with the outer wall of the housing 10, making the overall structure look harmonious and improving the aesthetics of the handle. The wall of the through hole 24 may be partially or completely internally threaded. The locking shaft 70 is inserted into the through hole 24 and threadedly connected to the connecting shaft 22. With the lever 30 stationary, rotating the locking shaft 70 in the first direction causes the connecting shaft 22 to move linearly and release from the irregular hole 31. The distance between the wheel body 21 of the drum 20 and the brake pad 60 increases, making it relatively easy to rotate the lever 30. With the lever 30 stationary, rotating the locking shaft 70 in the opposite direction of the first direction causes the connecting shaft 22 to move linearly and increase its length into the irregular hole 31. The distance between the wheel body 21 of the drum 20 and the brake pad 60 decreases, making it relatively heavy to rotate the lever 30. Therefore, by turning the locking shaft 70, the feel of the operator's operating lever 30 can be adjusted to meet the usage habits of different operators.

[0070] Optionally, the endoscope operating handle also includes an insert 23, which is embedded and fixed inside the connecting shaft 22, with an internal thread on the insert 23. When the locking shaft 70 passes through the through hole 24, the threaded section engages with the internal thread on the insert 23. Rotating the locking shaft 70 causes the insert 23 and the connecting shaft 22 to move linearly together, thereby adjusting the feel of the lever 30. The through hole 24 has a groove on its wall, and the insert 23 is inserted and fixed within the groove, thereby increasing the strength of the connecting shaft 22.

[0071] The present invention also provides an endoscope including an operating part and an insertion part connected to the operating part, the operating part having an endoscope operating handle as described above.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An endoscope operating handle, characterized in that, include: The device comprises a housing, a drum, a lever, a button, a locking disc, and a brake pad. The drum has a connecting shaft and is rotatably mounted on the housing. The connecting shaft extends out of the housing and is fixedly connected to the lever. The brake pad and the locking disc are both sleeved on the connecting shaft. The locking disc is capable of linear movement along the axial direction of the connecting shaft and is located on the side of the brake pad away from the drum. The button is pressable and mounted on the housing. The button is configured to push the locking disc to rotate when pressed, thereby causing the brake pad to press against the drum to lock the drum, or to release the brake pad from the drum so that the drum can rotate with the lever. The inner wall of the housing is provided with a receiving groove, and the brake pad and the locking disc are both received in the receiving groove. The groove wall of the receiving groove is provided with a clearance notch, which is used for the button to drive the locking disc to rotate. The bottom of the receiving groove is provided with a first locking tooth, and the locking disc has a second locking tooth. The second locking tooth is in contact with the first locking tooth. As the locking disc rotates, the protrusion of the first locking tooth switches between two states: in contact with the concave part of the second locking tooth and in contact with the protrusion of the second locking tooth. The protrusion of the first locking tooth or the protrusion of the second locking tooth has at least one stepped surface; wherein, when only the protrusion of the first locking tooth has a stepped surface, the protrusion of the second locking tooth can abut against the top surface, the recess, and the stepped surface of the first locking tooth respectively, forming multiple stops; or, when only the protrusion of the second locking tooth has a stepped surface, the protrusion of the first locking tooth can abut against the top surface, the recess, and the stepped surface of the second locking tooth respectively, forming multiple stops; It also includes a push rod, and the outer periphery of the locking disc is provided with ratchet teeth. One end of the push rod is mounted on the button, and the other end of the push rod abuts against the recess of the ratchet teeth, so that the push rod can push the locking disc to rotate when the button is pressed.

2. The endoscope operating handle according to claim 1, characterized in that, The groove wall of the receiving groove is provided with a locking notch, and the outer edge of the brake pad is provided with a connecting post. The connecting post is engaged with the locking notch. During the switching of the state of the first locking tooth and the second locking tooth, the brake pad moves along the axial direction of the connecting shaft.

3. The endoscope operating handle according to claim 1, characterized in that, The button includes a pressing element, an elastic element, and a button base. The housing has a positioning hole. The button base includes a base body and a shaft fixed to the base body. The shaft extends through the positioning hole to the outside of the housing. The push rod is rotatably mounted on the base body. The pressing element is fixed to one end of the shaft extending out of the housing. The elastic element is sandwiched between the outer wall of the housing and the pressing element.

4. The endoscope operating handle according to claim 3, characterized in that, The elastic element is a spring, which is sleeved on the portion of the button seat's shaft that extends out of the housing.

5. The endoscope operating handle according to claim 1, characterized in that, The lever has a shaped hole, and the end of the connecting shaft is inserted into the shaped hole to make an interference fit with the lever.

6. The endoscope operating handle according to claim 5, characterized in that, It also includes a locking shaft, the connecting shaft having a through hole, the wall of the through hole having at least a portion of internal thread, the locking shaft being inserted into the through hole, the locking shaft having a threaded section that engages with the internal thread.

7. An endoscope, characterized in that, It includes an insertion part connected to an operating part, the operating part having an endoscope operating handle as described in any one of claims 1 to 6.

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