Insertion portion control device and endoscope

Abstract

The present application relates to an insertion part control device and an endoscope. The insertion part control device includes: a screwing mechanism; a locking mechanism, including a locking wheel, an elastic wheel, a first locking member and a second locking member, the first locking member is provided at the distal end of the locking wheel, the second locking member is provided at the proximal end of the dial mechanism, and is arranged opposite to the first locking member; and a forceps lifting mechanism, which is used to connect the proximal end of the forceps lifting device; there is a preset spacing between the first locking member and the second locking member along the axial direction; the locking wheel rotates and moves along the axial direction, so that the first locking member presses against the second locking member to lock the bending adjustment knob, and the screwing mechanism is in a locked position; the screwing mechanism can drive the forceps lifting mechanism to rotate to perform the forceps lifting action, and the screwing mechanism is in the forceps lifting position. In this way, the insertion part control device integrates the locking function of the bending adjustment device and the forceps lifting function of the forceps lifting device, ensuring the accuracy and safety of the operation when operating the forceps lifting device, meeting the needs of one-handed operation, and shortening the operation time.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an insertion portion control device and an endoscope. Background Art

[0002] Endoscopes, as essential tools in modern medicine, are widely used in various examinations and surgical procedures. They penetrate the body through natural orifices or tiny incisions, enabling various examinations and minimally invasive procedures. An endoscope consists of an operating unit and an insertion unit. The insertion unit, which can be inserted into the body, uses its camera system to capture images, providing doctors with clear and accurate image information. The operating unit is equipped with a bending device, which connects to the insertion unit via a drawstring, enabling precise control of the bending of the insertion unit's front end.

[0003] Moreover, some endoscopes are also equipped with a forceps elevator, which can change the direction of the diagnostic and treatment instruments inserted through the forceps channel, such as biopsy forceps, lithotripsy baskets, and incision knives. Taking the ultrasonic endoscope as an example, the doctor only needs to turn the forceps elevator knob on the operating part to control the direction in which the diagnostic and treatment instruments extend from the forceps channel, so that they appear accurately in the ideal position in the endoscope's field of view, greatly facilitating endoscopic diagnosis and treatment operations. Usually, the forceps elevator knob is connected to the forceps elevator through an operating wire, and the outside of the operating wire is covered with a sleeve fixed to the insertion part. By rotating the forceps elevator knob, the operating wire moves back and forth inside the sleeve, generating pulling and pushing forces, thereby achieving the lifting or flattening of the forceps elevator.

[0004] The front end of the insertion portion of an endoscope has inherent bending stiffness. After being bent, it will naturally generate a restoring force, trying to return to a straight state. This restoring force is a reflection of the material's own characteristics and is inevitable. When the user releases the bending adjustment device, the front end of the insertion portion will not be able to maintain a static state, but will gradually recover in the direction of decreasing curvature until it reaches its natural straight state. Therefore, endoscopes equipped with lifting forceps usually have a bending locking function. When necessary, medical staff can lock the bending portion by operating the locking knob on the operating part to ensure the accuracy and safety of the operation when operating the lifting forceps.

[0005] However, the current locking knob and forceps elevator knob are designed separately, resulting in a relatively large operating area. Furthermore, during surgery, the surgeon must switch between the two knobs, making one-handed operation difficult and increasing the complexity and labor intensity of the operation. Furthermore, this operation mode also prolongs the operation time, reduces surgical efficiency, and further increases the patient's pain. Summary of the Invention

[0006] Based on this, it is necessary to provide an insertion control device and an endoscope to address the problems that the locking knob and the forceps lifting knob of the current endoscope are independent, resulting in a large space occupation and inability to operate with one hand. The device integrates the locking function of the bending adjustment device and the lifting function of the forceps lifting device to ensure the safety and reliability of the entire surgical process, reduce the occupied space, meet the needs of one-handed operation, improve the convenience and comfort of human-computer interaction, shorten the operation time, and improve the surgical efficiency.

[0007] An insertion portion control device, comprising:

[0008] A screwing mechanism is used to rotate a bending adjustment knob provided on the bending adjustment device;

[0009] a locking mechanism coaxially arranged with the screwing mechanism and movable with the screwing mechanism, the locking mechanism being located between the bending adjustment knob and the dial mechanism of the bending adjustment device, wherein the locking mechanism comprises a locking wheel, an elastic wheel, a first locking member, and a second locking member, the locking wheel being arranged at the distal end of the bending adjustment knob, the elastic wheel being coaxially arranged with the screwing mechanism and rotatably arranged in the locking wheel, the first locking member being arranged at the distal end of the locking wheel, and the second locking member being arranged at the proximal end of the dial mechanism and opposite to the first locking member; and

[0010] A forceps lifting mechanism is coaxially arranged with the screwing mechanism and can move with the screwing mechanism. The forceps lifting mechanism is located at the distal end of the dial mechanism and is used to connect to the forceps lifting device;

[0011] There is a preset distance between the first locking member and the second locking member in the axial direction, and the screwing mechanism is in a relaxed position at this time; the screwing mechanism drives the tension wheel to rotate relative to the locking wheel and move axially, so that the first locking member presses against the second locking member to lock the bending adjustment knob, and the screwing mechanism is in a locked position at this time; the first locking member maintains a state of pressing against the second locking member, and the screwing mechanism can drive the pliers lifting mechanism to rotate to drive the pliers lifting device to perform the pliers lifting action, and the screwing mechanism is in the pliers lifting position.

[0012] In one embodiment of the present application, the locking wheel has a first locking groove and a second locking groove, the second locking groove is arranged along the circumferential direction, one end of the first locking groove is connected to the second locking groove, and the other end of the first locking groove is inclined toward the distal end relative to the second locking groove;

[0013] The outer peripheral surface of the tension wheel has a protruding sliding portion, and the sliding portion can slide in the first locking groove and the second locking groove.

[0014] In one embodiment of the present application, the locking mechanism further includes a tightening member, which is provided on the bending adjustment knob and located radially outside the tension wheel, and the tightening member can move radially to tighten the outer peripheral surface of the tension wheel;

[0015] The outer peripheral surface of the tension wheel also has a recessed release groove, a locking groove and a jaw lifting groove. When the screwing mechanism rotates, the end of the tightening member can move among the release groove, the locking groove and the jaw lifting groove.

[0016] In one embodiment of the present application, the radial depth of the lifting groove is less than the radial depth of the releasing groove, and is less than or equal to the radial depth of the locking groove.

[0017] And / or, the tightening member includes a mounting seat, an elastic member, and a positioning member, the mounting seat is provided on the first mounting portion of the bending adjustment knob, the elastic member is provided in the mounting seat and abuts against the mounting seat and the positioning member, so that an end portion of the positioning member abuts against the outer peripheral surface of the tension wheel;

[0018] And / or, there are multiple tightening members, and the multiple tightening members are evenly distributed along the circumferential direction.

[0019] In one embodiment of the present application, the pliers lifting mechanism includes a pliers lifting frame, a sliding assembly and a rotating member. The pliers lifting frame is arranged at the distal end of the dial mechanism, the rotating member is arranged on the screwing mechanism and can be rotatably arranged on the pliers lifting frame, the sliding assembly can be slidably arranged on the pliers lifting frame and connected to the proximal end of the pliers lifting device, and the output end of the rotating member is connected to the sliding assembly and drives the sliding assembly to move.

[0020] In one embodiment of the present application, the rotating member has a first rotating groove and a second rotating groove that are arranged in a circumferential direction and communicate with each other, and the end portion of the sliding assembly can be slidably disposed in the first rotating groove and the second rotating groove;

[0021] The radius of the second rotation groove is greater than the radius of the first rotation groove. When the sliding assembly moves along the second rotation groove, the sliding assembly can move relative to the clamp lifting frame.

[0022] In one embodiment of the present application, the sliding assembly includes a pushing member, a pushing rod and a sliding guide rail. The pushing member can be rotatably arranged on the pushing rod and can be rotatably arranged in the first rotating groove and the second rotating groove. The sliding guide rail is arranged on the clamp lifting frame. The pushing rod can be movably arranged in the sliding guide rail. The end of the pushing rod is connected to the clamp lifting device through a connecting rope.

[0023] In one embodiment of the present application, the pliers lifting mechanism further includes a limiting member, which is provided on the pliers lifting frame. The limiting member can abut against the rotating member after the rotating member rotates a preset angle to limit the rotation angle of the rotating member.

[0024] In one embodiment of the present application, the screwing mechanism includes a knob housing, a forceps lifting knob, and a connecting shaft. The forceps lifting knob is provided on the connecting shaft. The knob housing is connected to the forceps lifting knob and can drive the forceps lifting knob to drive the connecting shaft to rotate axially. The connecting shaft is also connected to the tension wheel and the forceps lifting mechanism.

[0025] And / or, at least one of the first locking member and the second locking member is made of a flexible material;

[0026] And / or, at least one of the first locking member and the second locking member is arranged in a ring shape.

[0027] In one embodiment of the present application, the insertion portion control device further comprises a support assembly, which is provided at the distal end of the forceps lifting mechanism and supports the connection operating portion;

[0028] The support assembly includes a support rod and a support plate. The proximal end of the support rod is arranged on the pliers lifting frame of the pliers lifting mechanism, and the distal end of the support rod is arranged on the support plate. The support plate is fixed to the operating part.

[0029] An endoscope comprises an operating portion and an insertion portion, wherein the operating portion comprises a bending adjustment device and an insertion portion control device according to any of the above technical features, wherein the insertion portion comprises at least a bending portion and a tip portion, wherein the tip portion comprises at least a forceps elevator;

[0030] The bending adjustment device is provided at the proximal end of the insertion portion and can be bent and connected to the distal end of the bending portion. The forceps lifter is provided at the distal end of the bending portion, and the insertion portion control device is connected to the forceps lifter.

[0031] The insertion portion control device is used to lock or unlock the bending adjustment device and control the lifting direction of the forceps lifter.

[0032] After adopting the above technical solution, this application has at least the following technical effects:

[0033] The insertion portion control device and endoscope of the present application, in which the first locking member is provided at the distal end of the locking wheel, and the second locking member is provided at the proximal end of the dial mechanism. When the screwing mechanism is in the relaxed position, there is a certain distance between the first locking member and the second locking member along the axial direction. When the screwing mechanism rotates from the relaxed position to the locked position, the screwing mechanism drives the tension wheel to rotate in the locking wheel, which can cause the tension wheel to move axially toward the proximal end. Then, the tension wheel drives the dial mechanism to move axially through the forceps lifting mechanism, causing the first locking member to press against the second locking member to lock the bending adjustment knob and the dial mechanism. When the screwing mechanism rotates from the locked position to the forceps lifting position, the first locking member remains pressed against the second locking member, and the screwing mechanism can drive the forceps lifting mechanism to rotate, so that the forceps lifting mechanism outputs linear motion, thereby driving the forceps lifting device to perform the forceps lifting action.

[0034] The insertion control device integrates the locking function of the bending device and the lifting function of the forceps elevator to ensure that the bending knob must be locked before the forceps elevator can be controlled. In this way, the bending portion can remain bent during the forceps elevator operation, thereby ensuring the accuracy and safety of the operation when the forceps elevator is operated, and reducing the space occupied. At the same time, after the bending device is bent, the bending knob can be locked by operating the screw mechanism alone, and continuing to operate the screw mechanism can control the forceps elevator to perform the lifting operation. In this way, the doctor can easily use it with only one hand, improving the convenience and comfort of human-computer interaction, shortening the operation time, and improving the efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is an exploded schematic diagram of an insertion portion control device according to an embodiment of the present application.

[0036] Figure 2 for Figure 1 A side view of the insertion control device is shown in a relaxed state.

[0037] Figure 3 for Figure 1 A front view of the insertion portion control device is shown.

[0038] Figure 4 for Figure 3 The shown insertion portion control device is a cross-sectional view taken along line A1-A1.

[0039] Figure 5 for Figure 4 The shown part is an enlarged view of the insertion portion control device at position B1.

[0040] Figure 6 for Figure 3 The shown insertion portion control device is a cross-sectional view at C1-C1.

[0041] Figure 7 for Figure 6The shown figure is a partial enlarged view of the insertion portion control device at D1.

[0042] Figure 8 for Figure 6 Schematic diagram of the tension wheel in the insertion part control device shown.

[0043] Figure 9 for Figure 3 The shown insertion portion control device is a cross-sectional view taken at E1-E1.

[0044] Figure 10 for Figure 8 Schematic diagram of the rotating part in the insertion part control device shown.

[0045] Figure 11 for Figure 1 A side view of the insertion portion control device is shown in a locked state.

[0046] Figure 12 for Figure 11 A front view of the insertion portion control device is shown.

[0047] Figure 13 for Figure 12 A cross-sectional view of the insertion portion control device is shown at A2-A2.

[0048] Figure 14 for Figure 13 The shown part is an enlarged view of the insertion portion control device at B2.

[0049] Figure 15 for Figure 12 A cross-sectional view of the insertion portion control device is shown at C2-C2.

[0050] Figure 16 for Figure 15 The shown figure is a partial enlarged view of the insertion portion control device at D2.

[0051] Figure 17 for Figure 12 The insertion portion control device is shown in a cross-sectional view at E2-E2.

[0052] Figure 18 for Figure 1 A side view of the insertion portion control device is shown in the forceps lifting state.

[0053] Figure 19 for Figure 18 A front view of the insertion portion control device is shown.

[0054] Figure 20 for Figure 19 A cross-sectional view of the insertion portion control device is shown at A3-A3.

[0055] Figure 21 for Figure 20 The shown part is an enlarged view of the insertion portion control device at B3.

[0056] Figure 22 for Figure 19 A cross-sectional view of the insertion portion control device is shown at C3-C3.

[0057] Figure 23 for Figure 22 The shown figure is a partial enlarged view of the insertion portion control device at D3.

[0058] Figure 24 for Figure 19 A cross-sectional view of the insertion portion control device is shown at E3-E3.

[0059] Wherein: 100, inserting part control device; 110, screwing mechanism; 111, knob housing; 112, forceps lifting knob; 113, connecting shaft; 120, locking mechanism; 121, locking wheel; 1211, first locking groove; 1212, second locking groove; 122, tension wheel; 1221, sliding part; 1222, release groove; 1223, locking groove; 1224, forceps lifting groove; 123, first locking member; 124, second locking member; 125, first mounting part; 126, pressing member; 130, forceps lifting mechanism; 131, forceps lifting frame; 1311, matching part; 132, rotating member; 1321, first rotating groove; 13 22. Second rotating groove; 1323. Connecting part; 1324. Rotating part; 133. Sliding assembly; 1331. Pushing member; 1332. Push rod; 1333. Sliding guide rail; 1334. Second mounting part; 134. Limiting member; 140. Supporting assembly; 141. Supporting rod; 142. Supporting plate; 143. Transfer tube; 200. Bending device; 210. Bending knob; 211. Knob body; 212. Knob shell; 220. Dial mechanism; 221. Winding dial; 222. Inner winding wheel; 223. Limiting knob; 2231. Limiting part; 224. Baffle; 225. Rubber gasket retaining ring; 226. Pull rope. DETAILED DESCRIPTION

[0060] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0061] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0062] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0063] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0064] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above," "above," and "above" the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. The first feature being "below," "below," and "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0065] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0066] Understandably, the current locking knob and forceps elevator knob of endoscopes are designed independently, resulting in a relatively large space occupied by the operating area. Moreover, during surgery, the doctor needs to switch between the two knobs, which not only makes it difficult to achieve convenient one-handed operation, but also increases the complexity and labor intensity of the operation. At the same time, this operation mode also prolongs the operation time, reduces surgical efficiency, and further increases the pain of the patient.

[0067] To this end, the present application provides a novel insertion portion control device 100, such as Figure 1 、 Figure 2 、 Figure 11 and Figure 18 As shown. The insertion part control device 100 is mainly used in endoscopes. The insertion part control device 100 integrates the locking function of the bending adjustment device 200 and the lifting function of the forceps lifting device to ensure the safety and reliability of the entire surgical process, reduce the occupied space, and meet the requirements of one-handed operation, improve the convenience and comfort of human-computer interaction, shorten the surgical time, and improve surgical efficiency. The following describes the specific structure of an embodiment of the insertion part control device 100.

[0068] The endoscope of the present application includes an operating portion and an insertion portion. The operating portion includes an operating handle, a bending adjustment device 200, and the insertion portion control device 100 in the present application. The insertion portion includes at least a bending portion and a head portion, and the head portion includes at least a forceps lifter. The insertion portion control device 100 is used to realize the locking and unlocking of the bending adjustment device 200 and the lifting control of the forceps lifter. The distal end of the operating portion is connected to the proximal end of the insertion portion. The insertion portion control device 100 and the bending adjustment device 200 are arranged in the operating handle. The bending adjustment device 200 can control the bending of the distal end of the insertion portion, that is, control the bending of the bending portion at the distal end of the insertion portion. In this way, the bending portion can adapt to the bending angle of the patient's body cavity after bending, and the distal end of the bending portion can enter the patient's body, thereby enabling the head portion to reach the lesion site. It should be noted that only the structure of the insertion portion control device 100 and the bending adjustment device 200 is illustrated in the present application, and the other parts of the endoscope structure are not shown.

[0069] It's worth noting that the proximal end of the insertion portion refers to the end closer to the physician and farther from the patient, while the distal end refers to the end farther from the physician and closer to the patient. The line connecting the proximal and distal ends is the axial direction. This also applies to other components of the endoscope and will not be discussed further below. To better illustrate the structure of the insertion portion control device 100, the structure of the bending adjustment device 200 will be briefly described here.

[0070] See also Figure 1 The bending adjustment device 200 includes a bending adjustment knob 210 and a dial mechanism 220. The bending adjustment knob 210 is rotatably arranged on the operating handle and connected to the dial mechanism 220. A pull rope 226 is wound around the dial mechanism 220. The distal end of the pull rope 226 is connected to the distal end of the bending portion. When the bending adjustment knob 210 drives the dial mechanism 220 to rotate, the dial mechanism 220 can wind or release the pull rope 226 to achieve precise control of the bending angle of the bending portion. The bending adjustment knob 210 includes a knob housing 212 and a knob body 211. The knob body 211 is arranged in the knob housing 212. The bending adjustment device 200 and other components of the insertion portion control device 100 are supported by the knob housing 212. Optionally, the bending adjustment knob 210 also includes a slip ring, and the knob body 211 can be rotatably mounted on the first mounting portion 125, etc. through the slip ring to reduce friction.

[0071] Optionally, the dial mechanism 220 includes a baffle 224, a winding dial 221, a limit knob 223, and an inner winding wheel 222. The inner winding wheel 222 is provided on the distal end of the winding dial 221 by a threaded member such as a screw, and the limit knob 223 is fixed to the distal end of the winding dial 221 by a threaded member such as a screw and is located radially outward of the inner winding wheel 222. The limit knob 223 is used to limit the rotation angle of the winding dial 221, thereby limiting the bending angle of the bending portion. The limit knob 223 has a limit portion 2231, and the clamp lifting frame 131 of the clamp lifting mechanism 130 has a matching portion 1311. After the bending adjustment knob 210 drives the winding dial 221 and the limit knob 223 to rotate a certain angle, the limit portion 2231 abuts against the matching portion 1311. At this time, the limit knob 223 can limit the continued rotation of the winding dial 221 through the stop cooperation between the limit portion 2231 and the matching portion 1311, thereby realizing the limitation of the bending adjustment knob 210 after rotating a certain angle, avoiding excessive bending of the bending portion.

[0072] Optionally, the limiting portion 2231 is a limiting protrusion, and the matching portion 1311 is a matching protrusion or a limiting groove that matches the limiting protrusion. The baffle 224 is arranged on the proximal side of the winding dial 221 and is fixed to the bending adjustment knob 210 by a threaded member such as a screw. The pull rope 226 passes around the wire groove of the inner winding wheel 222 and then extends out of the wire groove of the winding dial 221. When the bending adjustment knob 210 is rotated, it can drive the winding dial 221 to rotate synchronously, and then the winding dial 221 can wind or release the pull rope 226. Optionally, the dial mechanism 220 also includes a rubber gasket retaining ring 225, which is arranged between the baffle 224 and the winding dial 221. Optionally, the rubber gasket retaining ring 225 is fixed to the baffle 224 by gluing or the like.

[0073] See also Figures 1 to 5 、 Figures 11 to 14 、 Figures 18 to 21 In one embodiment, the insertion portion control device 100 includes a screwing mechanism 110 , a locking mechanism 120 , and a forceps lifting mechanism 130 . The screwing mechanism 110 can rotate a bending adjustment knob 210 provided on the bending adjustment device 200 . The locking mechanism 120 is coaxially arranged with the screwing mechanism 110 and can move with the screwing mechanism 110. The locking mechanism 120 is located between the bending adjustment knob 210 and the dial mechanism 220 of the bending adjustment device 200. The locking mechanism 120 includes a locking wheel 121, an elastic wheel 122, a first locking member 123, and a second locking member 124. The locking wheel 121 is located at the distal end of the bending adjustment knob 210. The elastic wheel 122 is coaxially arranged with the screwing mechanism 110 and can be rotatably disposed in the locking wheel 121. The first locking member 123 is located at the distal end of the locking wheel 121. The second locking member 124 is located at the proximal end of the dial mechanism 220 and is arranged opposite to the first locking member 123. The forceps lifting mechanism 130 is coaxially arranged with the screwing mechanism 110 and can move with the screwing mechanism 110. The forceps lifting mechanism 130 is located at the distal end of the dial mechanism 220 and is used to connect to the proximal end of the forceps lifting device. When the screwing mechanism 110 is in the relaxed position, there is a preset distance between the first locking member 123 and the second locking member 124 along the axial direction; when the screwing mechanism 110 is in the locked position, the screwing mechanism 110 drives the tensioning wheel 122 to rotate relative to the locking wheel 121 and move axially, so that the first locking member 123 presses against the second locking member 124 to lock the bending adjustment knob 210; when the screwing mechanism 110 is in the clamp lifting position, the first locking member 123 remains in a state of pressing against the second locking member 124, and the screwing mechanism 110 can drive the clamp lifting mechanism 130 to rotate to drive the clamp lifting device to perform the clamp lifting action.

[0074] The screwing mechanism 110 is an operating component of the insertion portion control device 100. The screwing mechanism 110 is located at the proximal end of the bending adjustment knob 210. The locking mechanism 120 is a component for locking the bending adjustment knob 210. The locking mechanism 120 is located between the bending adjustment knob 210 and the dial mechanism 220. The forceps lifting mechanism 130 is a component for controlling the forceps lifting device to perform the forceps lifting action. The forceps lifting mechanism 130 is located on the side of the dial mechanism 220 away from the locking mechanism 120. The forceps lifting mechanism 130 is connected to the proximal end of the forceps lifting device. The screwing mechanism 110 is coaxially arranged with the locking mechanism 120 and the forceps lifting mechanism 130. When the screwing mechanism 110 rotates, it can drive the locking mechanism 120 and the forceps lifting mechanism 130 to move synchronously, so that after locking the bending adjustment knob 210, the locking mechanism 120 can drive the forceps lifting mechanism 130 to control the forceps lifting device to perform the forceps lifting action to control the direction in which the forceps lifting device is lifted.

[0075] by Figure 2 、 Figure 11 and Figure 18 The direction shown illustrates the rotation of the screw mechanism 110, which has a relaxed position ( Figure 2 ), locked position ( Figure 11 ) and the position of the lifting forceps ( Figure 18 ), Figure 2 The screwing mechanism 110 is in the relaxed position. At this time, the locking mechanism 120 is in the unlocked state. The bending knob 210 can perform the bending operation. The entire insertion portion control device 100 is in the relaxed state. The screwing mechanism 110 rotates clockwise (upward) from the relaxed position to the locked position. Figure 11 As shown, the screwing mechanism 110 drives the locking mechanism 120 to rotate synchronously, and the locking mechanism 120 can drive the dial mechanism 220 to move axially, so that the locking mechanism 120 locks the bending knob 210 and the dial mechanism 220, and the entire insertion part control device 100 is in a locked state. The screwing mechanism 110 continues to rotate clockwise (upward), moving from the locked position to the clamp lifting position, as shown in FIG. Figure 18 As shown, the screwing mechanism 110 drives the locking mechanism 120 to rotate synchronously, and the locking mechanism 120 maintains the state of locking the bending adjustment knob 210. The screwing mechanism 110 also drives the forceps lifting mechanism 130 to move, so that the forceps lifting mechanism 130 controls the forceps lifting device to perform the forceps lifting action. It should be noted that the resetting of the forceps lifting device and the unlocking of the bending adjustment knob 210 are the reverse process of the above process. The screwing mechanism 110 rotates counterclockwise (lifting downward), which will not be detailed hereafter.

[0076] Specifically, the locking wheel 121 is hollow and fixedly mounted on the distal end of the bending knob 210. The tension wheel 122 is rotatably mounted in the locking wheel 121. The screwing mechanism 110 is coaxially connected to the tension wheel 122 and can drive the tension wheel 122 to rotate in the locking wheel 121. The screwing mechanism 110 is also provided with a dial mechanism 220 to connect to the pliers lifting mechanism 130. The first locking member 123 and the second locking member 124 are components for locking the bending knob 210. The first locking member 123 is located on the surface of the locking wheel 121 facing the dial mechanism 220, and the second locking member 124 is located on the surface of the baffle 224 of the dial mechanism 220 facing the locking wheel 121.

[0077] The locking wheel 121 drives the first locking member 123 to move axially, so that after the first locking member 123 presses against the second locking member 124, the cooperation between the first locking member 123 and the second locking member 124 can lock the bending knob 210 and the dial mechanism 220. It can be understood that after the bending knob 210 drives the dial mechanism 220 to rotate to adjust the bending angle of the bending portion, the bending knob 210 and the dial mechanism 220 are locked by the first locking member 123 pressing against the second locking member 124, so that the bending portion maintains a predetermined bending angle. Figures 2 to 5 As shown, when the insertion part control device 100 is in a relaxed state, the screwing mechanism 110 is in a relaxed position. At this time, there is a certain distance between the first locking member 123 and the second locking member 124 in the axial direction, and the bending adjustment knob 210 can drive the dial mechanism 220 to control the bending of the bending part (that is, the bending of the distal end of the insertion part, which will not be mentioned later).

[0078] like Figures 11 to 14 As shown, when the bending portion is bent to the required position, the doctor (user) operates the screwing mechanism 110 clockwise to move it to the locking position, and the screwing mechanism 110 can drive the tension wheel 122 to rotate in the locking wheel 121. The locking wheel 121 limits the rotation of the tension wheel 122, so that the locking wheel 121 can move axially toward the distal end, and then the locking wheel 121 can drive the bending adjustment knob 210 to move axially toward the distal end, and the first locking member 123 gradually approaches the second locking member 124 and presses the second locking member 124 to press the winding dial 221 of the dial mechanism 220, so that the rotation of the winding dial 221 is restricted or cannot be rotated, so that the bending adjustment knob 210 cannot be bent, thereby locking the bending adjustment knob 210 and the dial mechanism 220.

[0079] The bending knob 210 is restricted in rotation or cannot be rotated so that the bending portion maintains a predetermined bending state, and the entire insertion portion control device 100 is in a locked state. The restricted or cannot be rotated here means that after the bending knob 210 is locked, the resistance required to rotate the bending knob 210 is large, and there will be no misoperation, so that the bending portion can maintain a predetermined state. Figures 18 to 21As shown, the doctor operates the screwing mechanism 110 clockwise to move it to the forceps lifting position. The screwing mechanism 110 can drive the tension wheel 122 to rotate synchronously in the locking wheel 121. In this case, the first locking member 123 remains in a state of pressing against the second locking member 124. At the same time, the screwing mechanism 110 can drive the forceps lifting mechanism 130 to move synchronously, so that the forceps lifting mechanism 130 controls the forceps lifting device to perform the forceps lifting action, and the entire insertion part control device 100 is in the forceps lifting state.

[0080] It is worth noting that when the screwing mechanism 110 moves to the locked state, the screwing mechanism 110 can drive the forceps lifting mechanism 130 to rotate synchronously. However, in this case, the forceps lifting mechanism 130 will not control the forceps lifting device to perform the forceps lifting action. Only after the bending knob 210 is locked, the forceps lifting mechanism 130 can drive the forceps lifting device to perform the forceps lifting action. In other words, when the insertion portion control device 100 of the present application controls the forceps lifting device to perform the forceps lifting action, it first locks the bending knob 210 and the dial mechanism 220 with the second locking member 124 through the cooperation of the locking wheel 121 and the tensioning wheel 122, and then controls the forceps lifting device to perform the forceps lifting action.

[0081] The insertion portion control device 100 of the above embodiment integrates the locking function of the bending adjustment device 200 and the lifting function of the forceps lifter to ensure that the bending adjustment knob 210 must be locked before the forceps lifter can be controlled. In this way, the bending portion can remain bent during the forceps lifting operation, thereby ensuring the accuracy and safety of the operation when the forceps lifter is operated, making the entire surgical process safer and more reliable. At the same time, after the bending adjustment device 200 is completed, the bending adjustment knob 210 can be locked by operating the screwing mechanism 110 alone, and continuing to operate the screwing mechanism 110 can control the forceps lifter to perform the forceps lifting operation. In this way, the doctor can easily use it with only one hand, thereby improving the convenience and comfort of human-computer interaction, shortening the operation time, improving the operation efficiency, and minimizing the pain of the patient caused by the long operation time.

[0082] See also Figure 1 In one embodiment, the locking mechanism 120 further includes a first mounting portion 125, which is disposed on the distal end of the bending knob 210, and the locking wheel 121 is fixed to the first mounting portion 125. The first mounting portion 125 is a mounting housing for the locking mechanism 120, and the first mounting portion 125 carries the corresponding structure of the locking mechanism 120 and the dial mechanism 220 to support the locking mechanism 120 and the dial mechanism 220. At the same time, the first mounting portion 125 can also be mounted to the knob housing 212. Optionally, the first mounting portion 125 is a mounting plate. Optionally, the first mounting portion 125 is hollow, and the edge of the first mounting portion 125 is fixed to the knob housing 212, and the middle area of the first mounting portion 125 is for the rotation axis of the knob body 211 to pass through.

[0083] See also Figures 1 to 4 In one embodiment, the screwing mechanism 110 includes a knob housing 111, a forceps lifting knob 112 and a connecting shaft 113. The forceps lifting knob 112 is connected to the connecting shaft 113. The knob housing 111 covers the forceps lifting knob 112 and can drive the forceps lifting knob 112 to drive the connecting shaft 113 to rotate axially. The connecting shaft 113 also connects the tension wheel 122 and the forceps lifting mechanism 130. The connecting shaft 113 is the rotating shaft of the screwing mechanism 110, and the connecting shaft 113 extends axially. The connecting shaft 113 passes through the bending adjustment knob 210 to connect to the tension wheel 122, and passes through the dial mechanism 220 to connect to the forceps lifting mechanism 130. The knob housing 111 is the operating shell of the screwing mechanism 110. The forceps lifting knob 112 is arranged in the knob housing 111 and is fixed to the connecting shaft 113.

[0084] When the doctor operates the knob housing 111, the knob housing 111 drives the connecting shaft 113 to rotate via the forceps lifting knob 112, thereby causing the connecting shaft 113 to drive the tension pulley 122 and the forceps lifting mechanism 130 to rotate relative to the bending adjustment knob 210 and the dial mechanism 220. It is worth noting that the structural form of the knob housing 111 is generally not limited, as long as the knob housing 111 facilitates the doctor's operation. Optionally, the knob housing 111 may have a protrusion to facilitate the doctor's grip.

[0085] In one embodiment, at least one of the first locking member 123 and the second locking member 124 is made of a flexible material. In other words, at least one of the first locking member 123 and the second locking member 124 is a flexible member. As a result, when the first locking member 123 presses against the second locking member 124, the pressure deforms, increasing the contact force and compressing the dial mechanism 220, thereby locking the bending knob 210 and the dial mechanism 220.

[0086] Exemplarily, the second locking member 124 is a tactile pad, located on the winding dial 221. When the bending knob 210 is rotated, this tactile pad provides a tactile sensation, allowing the physician to approximate the rotation angle of the bending knob 210. Exemplarily, the first locking member 123 is a sliding plate. Of course, in other embodiments of the present application, the first locking member 123 and the second locking member 124 may alternatively be pads or other structures capable of achieving a pressure-locking effect.

[0087] Optionally, the first locking member 123 is fixed to the locking wheel 121 by gluing, and the second locking member 124 is fixed to the winding dial 221 by gluing, to ensure that the first locking member 123 and the second locking member 124 are securely locked. Optionally, the gluing method is AB glue or other types of colloids. Of course, in other embodiments of the present application, the first locking member 123 can also be fixed to the locking wheel 121 by means of screws, interference fit, etc., and the second locking member 124 can also be fixed to the winding dial 221 by means of screws, interference fit, etc.

[0088] In one embodiment, at least one of the first locking member 123 and the second locking member 124 is annular. Both the first locking member 123 and the second locking member 124 are annular and coaxially disposed to increase the contact area between the first locking member 123 and the second locking member 124, thereby ensuring a locking effect. Of course, in other embodiments of the present application, one of the first locking member 123 and the second locking member 124 may be annular or have other shapes, as long as sufficient contact area is ensured.

[0089] See also Figures 1 to 5 、 Figures 11 to 14 、 Figures 18 to 21 In one embodiment, the locking wheel 121 has a first locking groove 1211 and a second locking groove 1212, the second locking groove 1212 is arranged along the circumferential direction, one end of the first locking groove 1211 is connected to the second locking groove 1212, and the other end of the first locking groove 1211 is inclined toward the distal end relative to the second locking groove 1212; the outer peripheral surface of the tension wheel 122 has a protruding sliding portion 1221, and the sliding portion 1221 can slide in the first locking groove 1211 and the second locking groove 1212.

[0090] The first locking groove 1211 and the second locking groove 1212 are located on the inner circumference of the locking wheel 121, and the sliding portion 1221 is located on the outer circumference of the tension wheel 122. After the tension wheel 122 is rotatably mounted on the locking wheel 121, the sliding portion 1221 is disposed opposite the first locking groove 1211 and the second locking groove 1212, and the sliding portion 1221 can slide within the first locking groove 1211 and the second locking groove 1212. It is worth noting that the radial direction of the tension wheel 122 is the radial direction, and the circumferential direction is the circumferential direction. These radial and circumferential directions also apply to other components of the endoscope and will not be further described below.

[0091] The second locking groove 1212 is arranged along the circumferential direction. One end of the first locking groove 1211 is connected to the second locking groove 1212, and the other end of the first locking groove 1211 extends in a direction away from the second locking groove 1212. Moreover, the other end of the first locking groove 1211 is inclined toward the proximal end. In other words, the first locking groove 1211 is inclined toward the proximal end relative to the second locking groove 1212. The first locking groove 1211 is an oblique groove, and the second locking groove 1212 is a flat groove. When the sliding portion 1221 slides along the first locking groove 1211, it can push the locking wheel 121 to move axially. When the sliding portion 1221 slides in the second locking groove 1212, it will not push the locking wheel 121 to move axially.

[0092] When the insertion portion control device 100 is in a relaxed state, the sliding portion 1221 is located at an end of the first locking groove 1211 away from the second locking groove 1212. Figure 4 and Figure 5 As shown. The screwing mechanism 110 rotates from the relaxed position to the locked position, the insertion portion control device 100 is in a locked state, and the sliding portion 1221 slides along the first locking groove 1211 toward the second locking groove 1212. Since the first locking groove 1211 is inclined toward the proximal end, the sliding portion 1221 can abut against the inner wall of the distal end side of the first locking groove 1211 when sliding, and push the locking wheel 121 to move axially toward the distal end, and then the locking wheel 121 can drive the bending knob 210 to move axially, so that the first locking member 123 on the locking wheel 121 presses against the second locking member 124 of the dial mechanism 220 to press the dial mechanism 220, so that the bending knob 210 is in a locked state. At this time, the sliding portion 1221 slides to the connection between the first locking groove 1211 and the second locking groove 1212, as shown Figure 13 and Figure 14 shown.

[0093] When the screwing mechanism 110 rotates from the locking position to the clamp raising position, the insertion portion control device 100 is in the clamp raising state, and the sliding portion 1221 slides from the connection between the first locking groove 1211 and the second locking groove 1212 to the second locking groove 1212 and slides in the second locking groove 1212. Since the second locking groove 1212 is arranged along the circumferential direction, when the sliding portion 1221 slides in the second locking groove 1212, the first locking member 123 can be kept pressed against the second locking member 124, so as to keep the bending adjustment knob 210 locked. Figure 20 and Figure 21 At the same time, when the screwing mechanism 110 rotates, it can drive the pliers lifting mechanism 130 to move, so that the pliers lifting mechanism 130 performs the pliers lifting action.

[0094] Optionally, there are multiple sliding portions 1221, each of which corresponds to a first locking groove 1211 and a second locking groove 1212 along the circumference of the tension wheel 122. In this way, the multiple sliding portions 1221 cooperate with the corresponding first locking groove 1211 and second locking groove 1212 along the circumference of the tension wheel 122, ensuring the stability of the movement of the locking wheel 121, thereby ensuring that the first locking member 123 reliably presses against the second locking member 124, thereby reliably locking the bending knob 210. Exemplarily, there are three sliding portions 1221, and accordingly, there are also three first locking grooves 1211 and three second locking grooves 1212. Of course, in other embodiments of the present application, the number of sliding portions 1221 may also be different. Optionally, the first locking groove 1211 and the second locking groove 1212 are arranged radially through the locking wheel 121.

[0095] See also Figure 3 、 Figures 6 to 8 、 Figure 12 、 Figure 15 、 Figure 16 、 Figure 19 、 Figure 22 and Figure 23 In one embodiment, the locking mechanism 120 further includes a tightening member 126 disposed on the bending adjustment knob 210 and radially outward of the tension wheel 122. The tightening member 126 can move radially to tighten the outer circumference of the tension wheel 122. The outer circumference of the tension wheel 122 also has a recessed release groove 1222, a locking groove 1223, and a jaw lifting groove 1224. When the screwing mechanism 110 rotates, the end of the tightening member 126 can move between the release groove 1222, the locking groove 1223, and the jaw lifting groove 1224.

[0096] A tensioning member 126 is radially disposed on the surface of the first mounting portion 125 facing the locking wheel 121. Positioned outside the locking wheel 121, the tensioning member 126 can pass through the locking wheel 121 and abut against the outer circumference of the tensioning wheel 122. The tensioning member 126 is movable radially to maintain contact with the outer circumference of the tensioning wheel 122. The coordination of the tensioning member 126 and the tensioning wheel 122 enhances the feel of manipulating the forceps lifting knob 112, allowing the surgeon to easily sense the position of the forceps lifting knob 112.

[0097] See also Figures 6 to 8 , the release groove 1222, the locking groove 1223 and the jaw lifting groove 1224 are arranged in sequence in the clockwise direction. When the screwing mechanism 110 drives the tension wheel 122 to rotate in the clockwise direction, the bottom walls of the release groove 1222, the locking groove 1223 and the jaw lifting groove 1224 sequentially abut against the tensioning member 126. When the screwing mechanism 110 is in the release position, the end of the tensioning member 126 abuts against the release groove 1222, as shown in FIG. Figures 6 to 8As shown. When the screwing mechanism 110 drives the tension wheel 122 to rotate in the clockwise direction, the tension wheel 122 can squeeze the pressing member 126, so that the pressing member 126 moves out of the locking groove 1223. When the tension wheel 122 rotates, the outer peripheral surface of the tension wheel 122 slides along the pressing member 126. When the locking groove 1223 corresponds to the pressing member 126, the pressing member 126 can also be radially ejected and moved into the locking groove 1223. Figure 15 and Figure 16 As shown in FIG, at this time, the screwing mechanism 110 is in the locked position. When the screwing mechanism 110 drives the tension wheel 122 to continue to rotate clockwise, the tensioning member 126 can move from the locking groove 1223 into the jaw lifting groove 1224 and slide along the jaw lifting groove 1224. At this time, the screwing mechanism 110 is in the jaw lifting position, as shown in FIG. Figure 22 and Figure 23 shown.

[0098] When the pressing member 126 moves from the release groove 1222 to the locking groove 1223, the position of the pressing member 126 changes, and the doctor can know the movement state of the forceps lifting knob 112 by sensing (such as the sound produced by the position change of the pressing member 126 or the rotation force of the forceps lifting knob 112, etc.), and the forceps lifting knob 112 moves to the locked position. When the pressing member 126 moves from the locking groove 1223 to the forceps lifting groove 1224, the position of the pressing member 126 changes, and the doctor can know the movement state of the forceps lifting knob 112 by sensing, and the forceps lifting knob 112 moves to the forceps lifting position.

[0099] Optionally, the connecting shaft 113 is fixedly connected to the tension wheel 122 so that the connecting shaft 113 can drive the tension wheel 122 to rotate synchronously. Optionally, the two sides of the connecting shaft 113 are flat, which are adapted to the flat hole of the tension wheel 122. Of course, in other embodiments of the present application, the connecting shaft 113 can also be fixedly connected to the tension wheel 122 via a key connection or other connection methods.

[0100] In one embodiment, a blocking portion is provided between the release groove 1222, the locking groove 1223, and the forceps lifting groove 1224 to prevent the tensioning member 126 from moving out of the release groove 1222, the locking groove 1223, and the forceps lifting groove 1224. In one embodiment, the radial depth of the forceps lifting groove 1224 is less than the radial depth of the release groove 1222, and less than or equal to the radial depth of the locking groove 1223. In this way, when the tensioning member 126 moves between the release groove 1222, the locking groove 1223, and the forceps lifting groove 1224, the blocking portion can press against the tensioning member 126, causing the tensioning member 126 to be in different positions, thereby providing the forceps lifting knob 112 with different operating feels, making it easier for the doctor to use.

[0101] See also Figure 6 、 Figure 7 、 Figure 15 、 Figure 16 In one embodiment, the tensioning member 126 includes a mounting seat, an elastic member, and a positioning member. The mounting seat is disposed on the first mounting portion 125. The elastic member is disposed within the mounting seat and abuts the mounting seat and the positioning member, causing the end of the positioning member to abut the outer circumference of the tension wheel 122. The mounting seat is disposed on the first mounting portion 125. The elastic force of the elastic member can push the positioning member to extend radially. In this way, the elastic force of the elastic member can cause the positioning member to extend radially out of the mounting seat to maintain abutment against the outer circumference of the tension wheel 122. Furthermore, when the tension wheel 122 rotates, the outer circumference of the tension wheel 122 can slide along the positioning member.

[0102] The tensioning member 126 abuts the outer circumference of the tension wheel 122 via a positioning member at its end, thereby limiting the position of the tension wheel 122 without affecting the rotation of the tension wheel 122. Optionally, the positioning member is spherical. Of course, in other embodiments of the present application, the positioning member may also have a spherical surface. Optionally, the tensioning member 126 is a plunger. Optionally, the elastic member is a spring, an elastic column, etc.

[0103] In one embodiment, there are multiple tensioning members 126, each uniformly distributed along the circumference of the tension wheel 122. The multiple tensioning members 126 are evenly distributed along the circumference of the tension wheel 122 on the first mounting portion 125 to ensure uniform force on the tension wheel 122. Optionally, the locking wheel 121 has a relief position, and the tensioning members 126 pass through the relief position to abut the outer circumference of the tension wheel 122.

[0104] See also Figure 1 、 Figure 3 、 Figure 9 、 Figure 10 、 Figure 12 、 Figure 17 、 Figure 19 and Figure 24 In one embodiment, the forceps lifting mechanism 130 includes a forceps lifting frame 131, a sliding assembly 133, and a rotating member 132. The forceps lifting frame 131 is disposed at the distal end of the dial mechanism 220. The rotating member 132 is disposed on the screw mechanism 110 and is rotatably disposed on the forceps lifting frame 131. The sliding assembly 133 is slidably disposed on the forceps lifting frame 131 and is connected to the proximal end of the forceps lifting device. The output end of the rotating member 132 is connected to the sliding assembly 133 and drives the sliding assembly 133 to move. The forceps lifting frame 131 is the mounting housing of the forceps lifting mechanism 130. The forceps lifting frame 131 is fixed to the distal side of the dial mechanism 220 and can carry the rotating member 132 and the sliding assembly 133.

[0105] The rotating member 132 is the input component for the movement of the forceps lifting mechanism 130, and the sliding assembly 133 is the output component for the movement of the forceps lifting mechanism 130. The output end of the sliding assembly 133 is connected to the proximal end of the forceps lifting device. The connecting shaft 113 extends from the forceps lifting frame 131 and is fixedly connected to the rotating member 132. The input end of the sliding assembly 133 is connected to the rotating member 132, and the output end of the sliding assembly 133 is connected to one end of the connecting rope, the other end of which is connected to the forceps lifting device. When the screwing mechanism 110 rotates, it can drive the connecting shaft 113 to drive the rotating member 132 to rotate synchronously. The rotating member 132 can rotate around the central axis of the connecting shaft 113 relative to the forceps lifting frame 131.

[0106] When the rotating member 132 rotates, the limiting effect of the sliding assembly 133 enables the sliding assembly 133 to output a moving motion, thereby driving the connecting rope to drive the forceps lifter to move, thereby performing the forceps lifting action and controlling the direction in which the forceps lifter is lifted. The rotating member 132 and the sliding assembly 133 form a cam mechanism. When the cam mechanism is in the return motion, the sliding assembly 133 is in a non-operating state and does not drive the forceps lifter to move. When the cam mechanism is in the push motion, the sliding assembly 133 is in an operating state and can drive the forceps lifter to move.

[0107] See also Figure 9 、 Figure 10 、 Figure 17 and Figure 24 In one embodiment, the rotating member 132 has a first rotating groove 1321 and a second rotating groove 1322 arranged and connected along the circumferential direction. The end portion of the sliding assembly 133 is slidably disposed in the first rotating groove 1321 and the second rotating groove 1322. The radius of the second rotating groove 1322 is greater than the radius of the first rotating groove 1321. When the sliding assembly 133 moves along the second rotating groove 1322, it can move relative to the forceps lifting frame 131.

[0108] The first rotation groove 1321 is connected to the second rotation groove 1322. When the screwing mechanism 110 is in the loose position, the input end of the sliding assembly 133 is at the end of the first rotation groove 1321 away from the second rotation groove 1322. Figure 9 As shown, the screwing mechanism 110 rotates from the loose position to the locked position, and the input end of the sliding assembly 133 slides along the first rotation groove 1321 and slides to the connection between the first rotation groove 1321 and the second rotation groove 1322, as shown. Figure 17 As shown, the screwing mechanism 110 rotates from the locking position to the clamp lifting position, and the input end of the sliding assembly 133 slides along the second rotating groove 1322. Figure 24 shown.

[0109] When the screwing mechanism 110 rotates from the loose position to the locked position, the screwing mechanism 110 can drive the first locking member 123 to press against the second locking member 124 through the cooperation of the locking wheel 121 and the tensioning wheel 122, thereby pressing the dial mechanism 220 and locking the bending knob 210. During this process, the input end of the sliding assembly 133 slides along the first rotation groove 1321. When the screwing mechanism 110 rotates from the locked position to the pliers raising position, the first locking member 123 remains pressed against the second locking member 124 to keep the bending knob 210 locked. During this process, the input end of the sliding assembly 133 can slide from the first rotation groove 1321 into the second rotation groove 1322 and slide within the second rotation groove 1322.

[0110] The arc corresponding to the first rotation groove 1321 is the base arc, and the arc corresponding to the second rotation groove 1322 is the push-stroke arc. When the input end of the sliding assembly 133 slides in the first rotation groove 1321, the sliding assembly 133 does not output movement, and thus does not drive the forceps lifter to perform the forceps lifting action. When the input end of the sliding assembly 133 slides to the second rotation groove 1322, because the radius of the first rotation groove 1321 is greater than the radius of the second rotation groove 1322, the rotation of the rotating member 132 can push the sliding assembly 133 to move, so that the sliding assembly 133 controls the forceps lifter to perform the forceps lifting action.

[0111] Optionally, the rotating member 132 includes a connecting portion 1323 and a rotating portion 1324. One end of the connecting portion 1323 is disposed on the connecting shaft 113, and the other end of the connecting portion 1323 is connected to the rotating portion 1324. The rotating portion 1324 is arranged in an arc shape, and the first rotating groove 1321 and the second rotating groove 1322 are disposed in the rotating portion 1324. In this way, when the screwing mechanism 110 rotates, it can drive the connecting portion 1323 to drive the rotating portion 1324 to rotate synchronously, thereby driving the sliding assembly 133. Optionally, the rotating member 132 is in the form of a rocker rod. Of course, in other embodiments of the present application, the rotating member 132 may also be fan-shaped or have other structural forms.

[0112] See also Figure 1 、 Figure 9 、 Figure 10 、 Figure 17 and Figure 24 In one embodiment, the sliding assembly 133 includes a pushing member 1331, a pushing rod 1332 and a sliding guide rail 1333. The pushing member 1331 can be rotatably arranged on the pushing rod 1332 and can be rotatably adapted in the first rotating groove 1321 and the second rotating groove 1322. The sliding guide rail 1333 is arranged on the forceps lifting frame 131, and the pushing rod 1332 can be movably arranged in the sliding guide rail 1333. The end of the pushing rod 1332 is connected to the proximal end of the forceps lifting device through a connecting rope.

[0113] Pushing member 1331 is a component at the input end of sliding assembly 133, pushing rod 1332 is a component at the output end of sliding assembly 133, and sliding guide rail 1333 is a guide component. Pushing member 1331 is slidably adapted in first rotation slot 1321 and second rotation slot 1322. Pushing member 1331 is rotatably mounted on pushing rod 1332, which is slidably mounted on sliding guide rail 1333. Sliding guide rail 1333 is fixed to forceps lifting frame 131. When the rotating member 132 rotates, the first rotating groove 1321 can slide along the pushing member 1331. After the pushing member 1331 slides to the second rotating groove 1322, the rotating member 132 continues to rotate to drive the pushing member 1331 to move synchronously. Due to the limiting effect of the push rod 1332 and the sliding guide rail 1333, the pushing member 1331 can only drive the push rod 1332 to move along the sliding guide rail 1333. The end of the push rod 1332 is connected to the connecting rope. When the push rod 1332 moves along the sliding guide rail 1333, it can drive the connecting rope to drive the lifting device to perform the lifting action.

[0114] Optionally, the pusher 1331 is a cylindrical pusher. Of course, in other embodiments of the present application, the pusher 1331 can also be another component that can slide within the first rotation groove 1321 and the second rotation groove 1322. Optionally, the sliding guide rail 1333 has a slide groove, and the push rod 1332 can be slidably disposed in the slide groove and extend through the slide groove. Of course, in other embodiments of the present application, the sliding guide rail 1333 and the push rod 1332 can also be a combination of a slide rail and a slider, or other structural forms that can achieve sliding fit.

[0115] Optionally, the lifting forceps frame 131 has a mounting groove, and the sliding guide rail 1333 is located in the mounting groove. Optionally, the sliding guide rail 1333 is fixed to the lifting forceps frame 131 by a fastener such as a screw. Optionally, the sliding assembly 133 also includes a second mounting portion 1334, which is provided on the push rod 1332 and is rotatably connected to the push member 1331. The second mounting portion 1334 is used to rotatably mount the push member 1331 to the push rod 1332, while not affecting the sliding of the push member 1331, and can also facilitate the connection between the push member 1331 and the push rod 1332. Optionally, the second mounting portion 1334 is a mounting housing or a mounting bracket, etc.

[0116] Optionally, the sliding assembly 133 further includes a fixing member disposed at the distal end of the connecting shaft 113 and located distally from the rotating member 132. The fixing member is used to axially limit the rotating member 132, preventing the rotating member 132 from axially separating from the connecting shaft 113. Optionally, the fixing member is a retaining spring. Of course, in other embodiments of the present application, the rotating member 132 can also be fixed to the connecting shaft 113 by means of a key connection or other means.

[0117] See also Figure 1 、 Figure 9、 Figure 17 and Figure 24 In one embodiment, the forceps lifting mechanism 130 further includes a limiter 134, which is provided on the forceps lifting frame 131. The limiter 134 can abut against the rotating member 132 after the rotating member 132 rotates a preset angle, thereby limiting the rotation angle of the rotating member 132. The limiter 134 is fixedly provided on the distal end of the forceps lifting frame 131, and extends toward the rotating member 132. When the rotating member 132 rotates to a predetermined rotation angle, the rotating member 132 can abut against the limiter 134, and the rotation angle of the rotating member 132 is limited by the limiter 134 to prevent the rotating member 132 from rotating excessively, thereby preventing the forceps lifting device from over-opening. As long as the opening angle of the forceps lifting device can meet the use requirements, it is sufficient.

[0118] It is worth noting that the fixed position of the limiter 134 on the forceps lifting frame 131 is pre-set, the rotation angle of the rotating member 132 is pre-set, the installation position of the limiter 134 on the forceps lifting frame 131 is determined according to the rotation angle of the rotating member 132, and then the limiter 134 is fixed to the forceps lifting frame 131. For different types of insertion part control devices 100, the limiter 134 can be arranged at different positions of the forceps lifting frame 131 so that the rotating member 132 has different rotation angles to meet different forceps lifting control requirements. Optionally, the limiter 134 is a limit rod. Optionally, the limiter 134 is fixed to the forceps lifting frame 131 by fasteners such as screws.

[0119] See also Figure 1 、 Figure 3 and Figure 4 In one embodiment, the insertion control device 100 further includes a support assembly 140, which is disposed at the distal end of the forceps lifting mechanism 130 and supports and connects to the operating portion. The support assembly 140 is disposed at the distal end of the forceps lifting mechanism 130, with the proximal end of the support assembly 140 fixed to the forceps lifting frame 131 and the distal end of the support assembly 140 fixed to the operating handle of the operating portion. The support assembly 140 provides support at the distal end of the insertion control device 100, ensuring that the insertion control device 100 is securely positioned within the operating portion.

[0120] See also Figure 1 、 Figure 3 and Figure 4 In one embodiment, the support assembly 140 includes a support rod 141 and a support plate 142. The proximal end of the support rod 141 is disposed on the forceps lifting frame 131 of the forceps lifting mechanism 130, and the distal end of the support rod 141 is disposed on the support plate 142. The support plate 142 is fixed to the operating portion. The support rod 141 extends axially, and the proximal end of the support rod 141 is fixed to the forceps lifting frame 131 via a fastener such as a screw. The proximal end of the support rod 141 is fixed to the support rod 141 via a fastener such as a screw, and the support plate 142 is mounted to the support handle of the operating portion.

[0121] Optionally, multiple support rods 141 are provided, evenly distributed to ensure support stability. In one embodiment, support assembly 140 further includes a transfer tube 143 disposed proximal to support plate 142 and connected to the operating handle of the operating portion. Transfer tube 143 establishes a connection between support plate 142 and the operating handle, facilitating assembly.

[0122] The assembly process of the insertion portion control device 100 of the present application is as follows:

[0123] The knob housing 111, the forceps lifting knob 112, and the connecting shaft 113 are assembled and fixed, for example, by gluing, to form the screwing mechanism 110. The tightening member 126, the locking wheel 121, and the tensioning wheel 122 are fixedly connected to the connecting shaft 113 by fasteners such as screws to form the locking mechanism 120. The first locking member 123 is fixed to the locking wheel 121 by gluing, for example, and the first mounting portion 125 is mounted to the bending adjustment knob 210 to secure the locking mechanism 120 to the distal end of the bending adjustment knob 210. The limit knob 223 is fixed to the winding dial 221 by a fastener such as a threaded piece, and the pull rope 226 passes around the wire groove of the inner winding wheel 222 and then passes around the wire groove of the winding dial 221 and extends out. The inner winding wheel 222 is fixed to the distal end of the winding dial 221 by a fastener such as a threaded piece, and the second locking piece 124 is fixed to the proximal side of the winding dial 221. The baffle 224 and the rubber gasket retaining ring 225 are fixed to the proximal side of the winding dial 221 to form a dial mechanism 220.

[0124] At this point, the second locking member 124 is exposed from the baffle 224 and positioned toward the first locking member 123. The baffle 224 is secured to the first mounting portion 125 using fasteners, such as screws, to secure the dial mechanism 220 to the bending knob 210. The push rod 1332 is mounted to the sliding guide rail 1333, the push member 1331 is mounted to the second mounting portion 1334, and the second mounting portion 1334 is then mounted to the push rod 1332. The rotating member 132 is mounted to the connecting shaft 113, the push member 1331 is slidably mounted to the first rotating groove 1321 and the second rotating groove 1322, and the sliding guide rail 1333 is mounted to the pliers lifting frame 131 to form the pliers lifting mechanism 130. The pliers lifting frame 131 is then secured to the dial mechanism 220. The transfer tube 143 is secured to the support plate 142 by means of a streamlined method. The support rod 141 supports and connects the pliers lifting frame 131 and the support plate 142 to form the support assembly 140. In this way, the structural assembly of the insertion portion control device 100 is completed.

[0125] The working process of the insertion portion control device 100 of the present application is as follows:

[0126] See also Figures 1 to 10When the insertion portion control device 100 is in a relaxed state, the screwing mechanism 110 is in a relaxed position, and the positioning member of the tightening member 126 is fixed in the relaxation groove 1222 of the tension wheel 122, such as Figure 6 and Figure 7 As shown, the sliding portion 1221 of the outer peripheral surface of the tension wheel 122 is located at one end of the first locking groove 1211 away from the second locking groove 1212, and the first locking member 123 of the locking wheel 121 and the second locking member 124 on the dial mechanism 220 have a movable distance in the circumferential direction, as shown in FIG. Figure 4 and Figure 5 At this time, the winding dial 221 is not pressed, and the bending knob 210 is in a relaxed state. The bending knob 210 can be operated to control the dial mechanism 220 to adjust the bending angle of the bending portion. At the same time, the lifting clamp frame 131, the push rod 1332, the push member 1331, the sliding guide rail 1333 and the limit member 134 form a cam mechanism. The push member 1331 is at the end of the first rotating groove 1321 away from the second rotating groove 1322, as shown in FIG. Figure 9 As shown, the lifting forceps is in a non-working state.

[0127] See also Figure 1 、 Figures 11 to 17 When the insertion control device 100 is in the locked state, the screwing mechanism 110 rotates clockwise (upward) from the loose position to the locked position, and the screwing mechanism 110 drives the tension wheel 122 to rotate synchronously, and the positioning member of the tightening member 126 slides from the loosening groove 1222 of the tension wheel 122 to the locking groove 1223, as shown in FIG. Figure 15 and Figure 16 At the same time, the sliding portion 1221 on the outer peripheral surface of the tension wheel 122 slides along the first locking groove 1211 and slides to the connection between the first locking groove 1211 and the second locking groove 1212. During this process, the sliding portion 1221 can push the locking wheel 121 to move axially toward the winding dial 221, so that the first locking member 123 on the distal end of the locking wheel 121 presses against the second locking member 124 of the winding dial 221, thereby pressing the winding dial 221 and achieving the locking of the bending knob 210. Figure 13 and Figure 14 shown.

[0128] When the tension wheel 122 is rotated by the screwing mechanism 110, the screwing mechanism 110 can also drive the rotating member 132 to rotate synchronously, and the pushing member 1331 slides in the first rotating groove 1321 of the cam mechanism. At this time, the pushing member 1331 slides along the first rotating groove 1321 and slides to the connection between the first rotating groove 1321 and the second rotating groove 1322. Figure 17 The distance between the pushing member 1331 and the axis center of the connecting shaft 113 remains unchanged, the pushing member 1331 does not push the push rod 1332 to slide in the guide rail, and the forceps lifting device is in a working state.

[0129] See also Figures 18 to 24 When the insertion control device 100 is in the pliers lifting state, the screwing mechanism 110 rotates clockwise (upward) from the locking position to the pliers lifting position, the screwing mechanism 110 drives the tension wheel 122 to rotate synchronously, and the positioning member of the tightening member 126 slides from the locking groove 1223 of the tension wheel 122 to the pliers lifting groove 1224, and slides in the pliers lifting groove 1224, as shown in FIG. Figure 22 and Figure 23 At the same time, the sliding portion 1221 of the outer peripheral surface of the tension wheel 122 slides along the second locking groove 1212, and the locking wheel 121 maintains a different axial position, so that the first locking member 123 remains pressed against the second locking member 124, and the bending knob 210 remains locked, as shown. Figure 20 and Figure 21 As the rotating member 132 is rotated by the screwing mechanism 110, the pushing member 1331 can slide in the second rotating groove 1322 of the cam mechanism. The pushing member 1331 is pushed away from the axis of the connecting shaft 113 and drives the push rod 1332 to slide in the sliding guide rail 1333. Figure 24 As shown, the push rod 1332 pulls the connecting rope to control the forceps lifting device to perform the forceps lifting action, and the forceps lifting device is in a working state. Wherein, the rotation angle of the rotating member 132 is limited by the limiting member 134.

[0130] The forceps lifter control device of the present application integrates the locking function of the bending adjustment device 200 and the lifting function of the forceps lifter to ensure that the bending adjustment knob 210 must be locked before the forceps lifter control operation sequence can be performed. In this way, the bending portion can maintain a bent state during the forceps lifting operation, thereby ensuring the accuracy and safety of the operation when operating the forceps lifter and reducing the occupied space. At the same time, after the bending adjustment device 200 is completed, the bending adjustment knob 210 can be locked by operating the screwing mechanism 110 alone, and continuing to operate the screwing mechanism 110 can control the forceps lifter to perform the forceps lifting operation. In this way, the doctor can easily use it with only one hand, thereby improving the convenience and comfort of human-computer interaction, shortening the operation time, and improving the efficiency of the operation.

[0131] The insertion control device 100 is a control knob that integrates locking and forceps lifting controls. It can quickly lock, unlock, and lift the forceps, allowing the user to perform convenient operations with just one hand, reducing the complexity and labor intensity of the operation. At the same time, this operation mode can shorten the operation time, improve surgical efficiency, and reduce the pain of the patient caused by the operation time. Moreover, the insertion control device 100 mechanically ensures that the bending adjustment is locked before the forceps lifting control can be performed, making the entire surgical process safer and more reliable.

[0132] The present application also provides an endoscope, comprising an operating portion and an insertion portion, the operating portion comprising a bending adjustment device 200 and an insertion portion control device 100 as in any of the above-mentioned embodiments, the insertion portion comprising at least a bending portion and a head portion, the head portion comprising at least a forceps lifter, the bending adjustment device 200 being provided at the proximal end of the insertion portion and being bendable and connected to the distal end of the bending portion, the forceps lifter being provided at the distal end of the bending portion, the insertion portion control device 100 being connected to the forceps lifter, and the insertion portion control device 100 being used to lock or unlock the bending adjustment device 200 and to control the direction in which the forceps lifter is lifted. After the endoscope adopts the insertion portion control device 100 of the above-mentioned embodiment, it is possible to quickly achieve locking and unlocking of the bending portion and lifting of the forceps lifter, and the user doctor can achieve convenient operation with only one hand, which reduces the complexity and labor intensity of the operation and ensures that the entire surgical process is safer and more reliable.

[0133] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0134] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An insertion portion control device, characterized in that: include: A screwing mechanism is used to rotate a bending adjustment knob provided on the bending adjustment device; a locking mechanism coaxially arranged with the screwing mechanism and movable with the screwing mechanism, the locking mechanism being located between the bending adjustment knob and the dial mechanism of the bending adjustment device, wherein the locking mechanism comprises a locking wheel, an elastic wheel, a first locking member, and a second locking member, the locking wheel being arranged at the distal end of the bending adjustment knob, the elastic wheel being coaxially arranged with the screwing mechanism and rotatably arranged in the locking wheel, the first locking member being arranged at the distal end of the locking wheel, and the second locking member being arranged at the proximal end of the dial mechanism and opposite to the first locking member; as well as A forceps lifting mechanism is coaxially arranged with the screwing mechanism and can move with the screwing mechanism. The forceps lifting mechanism is located at the distal end of the dial mechanism and is used to connect to the forceps lifting device; There is a preset distance between the first locking member and the second locking member in the axial direction, and the screwing mechanism is in a relaxed position at this time; the screwing mechanism drives the tension wheel to rotate relative to the locking wheel and move axially, so that the first locking member presses against the second locking member to lock the bending adjustment knob, and the screwing mechanism is in a locked position at this time; the first locking member maintains a state of pressing against the second locking member, and the screwing mechanism can drive the pliers lifting mechanism to rotate to drive the pliers lifting device to perform the pliers lifting action, and the screwing mechanism is in the pliers lifting position.

2. The insertion portion control device according to claim 1, wherein: The locking wheel has a first locking groove and a second locking groove, the second locking groove is arranged along the circumferential direction, one end of the first locking groove is connected to the second locking groove, and the other end of the first locking groove is inclined toward the distal end relative to the second locking groove; The outer peripheral surface of the tension wheel has a protruding sliding portion, and the sliding portion can slide in the first locking groove and the second locking groove.

3. The insertion portion control device according to claim 1, wherein: The locking mechanism further includes a tightening member, which is provided on the bending adjustment knob and located radially outside the tension wheel, and the tightening member can move radially to tighten the outer peripheral surface of the tension wheel; The outer peripheral surface of the tension wheel also has a recessed release groove, a locking groove and a jaw lifting groove. When the screwing mechanism rotates, the end of the tightening member can move among the release groove, the locking groove and the jaw lifting groove.

4. The insertion portion control device according to claim 3, wherein: The radial depth of the lifting groove is less than the radial depth of the releasing groove, and is less than or equal to the radial depth of the locking groove; And / or, the tightening member includes a mounting seat, an elastic member, and a positioning member, the mounting seat is provided on the first mounting portion of the bending adjustment knob, the elastic member is provided in the mounting seat and abuts against the mounting seat and the positioning member, so that an end portion of the positioning member abuts against the outer peripheral surface of the tension wheel; And / or, there are multiple tightening members, and the multiple tightening members are evenly distributed along the circumferential direction.

5. The insertion portion control device according to claim 1, wherein: The pliers lifting mechanism includes a pliers lifting frame, a sliding assembly and a rotating part. The pliers lifting frame is arranged at the distal end of the dial mechanism. The rotating part is arranged on the screwing mechanism and can be rotatably arranged on the pliers lifting frame. The sliding assembly can be slidably arranged on the pliers lifting frame and connected to the proximal end of the pliers lifting device. The output end of the rotating part is connected to the sliding assembly and drives the sliding assembly to move.

6. The insertion portion control device according to claim 5, characterized in that: The rotating member has a first rotating groove and a second rotating groove arranged in a circumferential direction and connected to each other, and the end portion of the sliding assembly can be slidably disposed in the first rotating groove and the second rotating groove; The radius of the second rotation groove is greater than the radius of the first rotation groove. When the sliding assembly moves along the second rotation groove, the sliding assembly can move relative to the clamp lifting frame.

7. The insertion portion control device according to claim 6, wherein: The sliding assembly includes a pushing member, a pushing rod and a sliding guide rail. The pushing member can be rotatably arranged on the pushing rod and can be rotatably arranged in the first rotating groove and the second rotating groove. The sliding guide rail is arranged on the clamp lifting frame. The pushing rod can be movably arranged in the sliding guide rail. The end of the pushing rod is connected to the clamp lifting device through a connecting rope.

8. The insertion portion control device according to any one of claims 1 to 7, characterized in that: The screwing mechanism includes a knob housing, a forceps lifting knob and a connecting shaft. The forceps lifting knob is arranged on the connecting shaft. The knob housing is connected to the forceps lifting knob and can drive the forceps lifting knob to drive the connecting shaft to rotate around the axis. The connecting shaft is also connected to the tension wheel and the forceps lifting mechanism. And / or, at least one of the first locking member and the second locking member is made of a flexible material; And / or, at least one of the first locking member and the second locking member is arranged in a ring shape.

9. The insertion portion control device according to any one of claims 1 to 7, characterized in that: The insertion portion control device further includes a support assembly, which is provided at the distal end of the forceps lifting mechanism and supports the connecting operating portion; The support assembly includes a support rod and a support plate. The proximal end of the support rod is arranged on the pliers lifting frame of the pliers lifting mechanism, and the distal end of the support rod is arranged on the support plate. The support plate is fixed to the operating part.

10. An endoscope, characterized in that: The device comprises an operating portion and an insertion portion, wherein the operating portion comprises a bending adjustment device and the insertion portion control device according to any one of claims 1 to 9, the insertion portion comprises at least a bending portion and a head portion, and the head portion comprises at least a forceps elevator; The bending adjustment device is provided at the proximal end of the insertion portion and can be bent and connected to the distal end of the bending portion. The forceps lifter is provided at the distal end of the bending portion, and the insertion portion control device is connected to the forceps lifter. The insertion portion control device is used to lock or unlock the bending adjustment device and control the lifting direction of the forceps lifter.

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