CN118873074A - Insertion control device and endoscope - Google Patents

Abstract

The present application relates to an insertion portion control device and an endoscope. The insertion portion control device includes: a screwing mechanism; the locking mechanism comprises a locking wheel, an elastic wheel, a first locking piece and a second locking piece, wherein the first locking piece is arranged at the distal end of the locking wheel, and the second locking piece is arranged at the proximal end of the thumb wheel mechanism and is opposite to the first locking piece; the forceps lifting mechanism is used for connecting the proximal end of the forceps lifting device; the first locking piece and the second locking piece have a preset distance along the axial direction; the locking wheel rotates to move along the axial direction, so that the first locking piece is propped against the second locking piece to lock the bending knob, and the screwing mechanism is positioned at the locking position; the screwing mechanism can drive the clamp lifting mechanism to rotate so as to execute clamp lifting action, and the screwing mechanism is positioned at the clamp lifting position. Thus, the insertion part control device integrates the locking function of the bending adjusting device and the forceps lifting function of the forceps lifting device, so that the accuracy and safety of operation during the operation of the forceps lifting device are ensured, the single-hand operation requirement is met, and the operation time is shortened.

Description

Insertion control device and endoscope

Technical Field

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

As an important tool in modern medicine, endoscopes are widely used in various examinations and surgical operations. Endoscopes can use natural holes or tiny incisions in the human body to reach into the body for various examinations and minimally invasive surgeries. The endoscope consists of an operating part and an insertion part. The insertion part can be inserted into the human body and collect images through its camera system to provide doctors with clear and accurate image information. The operating part is equipped with a bending device, which is connected to the insertion part through a drawstring in the bending device to achieve precise control of the bending of the front end of the insertion part.

Moreover, some endoscopes are also equipped with a forceps lifter, which can change the direction of the diagnostic and treatment instruments inserted through the forceps channel tube, such as biopsy forceps, lithotripsy baskets, and incisors. Taking the ultrasonic endoscope as an example, the doctor only needs to turn the forceps lifter knob on the operating part to control the direction in which the diagnostic and treatment instruments extend from the forceps channel opening, 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 lifter knob is connected to the forceps lifter by an operating wire, and the operating wire is covered with a sleeve fixed to the insertion part. By rotating the forceps lifter 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 lifter.

The front end of the insertion part of the endoscope has inherent bending stiffness. After being bent, it will naturally generate a restoring force and try 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 device, the front end of the insertion part 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 forceps elevators usually have a bending locking function. When necessary, medical staff can lock the bending part by operating the locking knob on the operating part to ensure the accuracy and safety of the operation when operating the forceps elevator.

However, the current locking knob and the forceps lifting knob are designed independently, resulting in a relatively large space occupied by the operating part. Moreover, when performing surgery, the doctor needs to switch the operating position 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 will also prolong the operation time, reduce the efficiency of the operation, and further increase the pain of the patient.

Summary of the invention

Based on this, it is necessary to provide an insertion control device and an endoscope, which integrates the locking function of the bending adjustment device and the lifting function of the forceps lifter, 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, so as 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.

An insertion portion control device, comprising:

A screwing mechanism, capable of rotating a bending adjustment knob disposed on the bending adjustment device;

a locking mechanism, which is coaxially arranged with the screwing mechanism and can move with the screwing mechanism, and the locking mechanism is 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 is arranged at the distal end of the bending adjustment knob, the elastic wheel is coaxially arranged with the screwing mechanism and can be rotatably arranged in the locking wheel, the first locking member is arranged at the distal end of the locking wheel, and the second locking member is arranged at the proximal end of the dial mechanism and is arranged opposite to the first locking member; and

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 wheel mechanism and is used to connect the forceps lifting device;

There is a preset distance between the first locking piece and the second locking piece 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 piece presses against the second locking piece to lock the bending adjustment knob, and the screwing mechanism is in a locked position at this time; the first locking piece maintains a state of pressing against the second locking piece, and the screwing mechanism can drive the forceps lifting mechanism to rotate to drive the forceps lifting device to perform the forceps lifting action, and the screwing mechanism is in the forceps lifting position.

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;

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.

In one embodiment of the present application, the locking mechanism further includes a tightening member, which is disposed on the bending adjustment knob and is 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 tensioning member can move among the release groove, the locking groove and the jaw lifting groove.

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;

And/or, the tensioning member includes a mounting seat, an elastic member and a positioning member, the mounting seat is arranged on the first mounting portion of the bending adjustment knob, the elastic member is arranged in the mounting seat and abuts against the mounting seat and the positioning member, so that the end 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.

In one embodiment of the present application, the forceps lifting mechanism includes a forceps lifting frame, a sliding assembly and a rotating part. The forceps 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 forceps lifting frame, the sliding assembly can be slidably arranged on the forceps lifting frame and connected to the proximal end of the forceps lifting device, and the output end of the rotating part is connected to the sliding assembly and drives the sliding assembly to move.

In one embodiment of the present application, the rotating member has a first rotating groove and a second rotating groove which are arranged in a circumferential direction and are connected, and the end of the sliding component can be slidably disposed in the first rotating groove and the second rotating groove;

The radius of the second rotating groove is greater than the radius of the first rotating groove. When the sliding assembly moves along the second rotating groove, the sliding assembly can move relative to the forceps lifting frame.

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 disposed on the pushing rod and can be rotatably disposed in the first rotating groove and the second rotating groove. The sliding guide rail is disposed on the forceps lifting frame. The pushing rod can be movably disposed in the sliding guide rail. The end of the pushing rod is connected to the forceps lifting device via a connecting rope.

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

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 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, and 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.

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

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

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 as described in any one of the above technical features, wherein the insertion portion comprises at least a bending portion and a head portion, and wherein the head portion comprises at least a forceps lifter;

The bending adjustment device is arranged at the proximal end of the insertion part and can be adjusted to be connected to the distal end of the bending part. The forceps lifting device is arranged at the distal end of the bending part, and the insertion part control device is connected to the forceps lifting device.

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

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

The insertion control device and endoscope of the present application, in the insertion control device, the first locking member is arranged at the distal end of the locking wheel, and the second locking member is arranged at the proximal end of the dial mechanism. When the screwing mechanism is in the loose position, there is a certain distance between the first locking member and the second locking member in the axial direction. When the screwing mechanism rotates from the loose position to the locked position, the screwing mechanism drives the tension wheel to rotate in the locking wheel so that the tension wheel can move axially toward the proximal end, and then the tension wheel drives the dial mechanism to move axially through the forceps lifting mechanism, so that the first locking member presses against the second locking member to lock the bending knob and the dial mechanism. When the screwing mechanism rotates from the locked position to the forceps lifting position, the first locking member keeps pressing against the second locking member, and the screwing mechanism can drive the forceps lifting mechanism to rotate, so that the forceps lifting mechanism outputs a linear motion, and then drives the forceps lifting device to perform the forceps lifting action.

The insertion control device integrates the locking function of the bending device and the lifting function of the forceps lifting device to ensure that the bending knob must be locked before the lifting device can be controlled. In this way, the bending portion can remain bent during the lifting operation, thereby ensuring the accuracy and safety of the operation when operating the lifting device 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 the lifting device can be controlled to perform the lifting operation by continuing to operate the screw mechanism. In this way, the doctor can use it easily with only one hand, which improves the convenience and comfort of human-computer interaction, shortens the operation time, and improves the efficiency of the operation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded schematic diagram of an insertion portion control device according to an embodiment of the present application.

FIG. 2 is a side view of the insertion portion control device shown in FIG. 1 in a relaxed state.

FIG. 3 is a front view of the insertion portion control device shown in FIG. 1 .

FIG. 4 is a cross-sectional view of the insertion portion control device shown in FIG. 3 taken along line A1 - A1 .

FIG. 5 is a partial enlarged view of the insertion portion control device shown in FIG. 4 at position B1.

FIG. 6 is a cross-sectional view of the insertion portion control device shown in FIG. 3 taken along line C1 - C1 .

FIG. 7 is a partial enlarged view of the insertion portion control device shown in FIG. 6 at position D1.

FIG8 is a schematic diagram of the tension wheel in the insertion portion control device shown in FIG6 .

FIG. 9 is a cross-sectional view of the insertion portion control device shown in FIG. 3 taken along line E1 - E1 .

FIG. 10 is a schematic diagram of a rotating member in the insertion portion control device shown in FIG. 8 .

11 is a side view of the insertion portion control device shown in FIG. 1 in a locked state.

FIG. 12 is a front view of the insertion portion control device shown in FIG. 11 .

FIG. 13 is a cross-sectional view of the insertion portion control device shown in FIG. 12 taken at A2 - A2 .

FIG. 14 is a partial enlarged view of the insertion portion control device shown in FIG. 13 at position B2.

FIG. 15 is a cross-sectional view of the insertion portion control device shown in FIG. 12 at C2-C2.

FIG. 16 is a partial enlarged view of the insertion portion control device shown in FIG. 15 at position D2.

FIG. 17 is a cross-sectional view of the insertion portion control device shown in FIG. 12 at E2-E2.

18 is a side view of the insertion portion control device shown in FIG. 1 in a forceps lifting state.

FIG. 19 is a front view of the insertion portion control device shown in FIG. 18 .

FIG. 20 is a cross-sectional view of the insertion portion control device shown in FIG. 19 at A3-A3.

FIG. 21 is a partial enlarged view of the insertion portion control device shown in FIG. 20 at position B3.

FIG. 22 is a cross-sectional view of the insertion portion control device shown in FIG. 19 at C3-C3.

FIG. 23 is a partial enlarged view of the insertion portion control device shown in FIG. 22 at position D3.

FIG. 24 is a cross-sectional view of the insertion portion control device shown in FIG. 19 at E3-E3.

Among them: 100, insertion control device; 110, screwing mechanism; 111, knob housing; 112, 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, lifting groove; 123, first locking member; 124, second locking member; 125, first mounting part; 126, pressing member; 130, lifting mechanism; 131, 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. Support assembly; 141. Support rod; 142. Support plate; 143. Transfer tube; 200. Bending device; 210. Bending knob; 211. Knob body; 212. Knob shell; 220. Dial wheel mechanism; 221. Winding dial wheel; 222. Inner winding wheel; 223. Limiting knob; 2231. Limiting part; 224. Baffle plate; 225. Rubber pad retaining ring; 226. Pull rope.

DETAILED DESCRIPTION

In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

In the description of the present 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 the present 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 the present application.

In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "on" or "below" a second feature, etc., or the like, 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 obliquely above the second feature, or simply means that the first feature is higher in 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 obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

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 a central 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 a central element at the same time. 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 implementation method.

Understandably, the locking knob and the forceps lifting knob of the current endoscope are designed independently, resulting in a relatively large space occupied by the operating part. Moreover, when performing surgery, the doctor needs to switch the operating position 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 will also prolong the operation time, reduce the efficiency of the operation, and further increase the pain of the patient.

To this end, the present application provides a new type of insertion part control device 100, as shown in Figures 1, 2, 11 and 18. 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 can meet the needs of one-handed operation, improve the convenience and comfort of human-computer interaction, shorten the operation time, and improve the efficiency of the operation. The specific structure of an embodiment of the insertion part control device 100 is introduced below.

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

It is worth noting that the proximal end of the insertion portion refers to the end of the insertion portion close to the doctor and away from the patient, and the distal end refers to the end of the insertion portion away from the doctor and close to the patient. The direction of the line connecting the proximal end and the distal end is the axial direction, and the proximal end and the distal end are also applicable to other components of the endoscope, which will not be described in detail later. In order to better illustrate the structure of the insertion portion control device 100, the structure of the bending device 200 is briefly described here.

Referring to FIG. 1 , the bending device 200 includes a bending knob 210 and a dial mechanism 220. The bending knob 210 is rotatably disposed 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 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 knob 210 includes a knob housing 212 and a knob body 211. The knob body 211 is disposed in the knob housing 212. The bending device 200 and other components of the insertion portion control device 100 are supported by the knob housing 212. Optionally, the bending 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.

Optionally, the dial mechanism 220 includes a baffle 224, a winding dial 221, a limit knob 223, and an inner winding wheel 222, wherein the inner winding wheel 222 is disposed on the distal end of the winding dial 221 through a threaded member such as a screw, and the limit knob 223 is fixed to the distal end of the winding dial 221 through 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 jaw lifting frame 131 of the jaw 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 achieving the limitation of the bending adjustment knob 210 after rotating a certain angle to avoid excessive bending of the bending portion.

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 wheel 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 arranged on the winding dial wheel 221. When the bending adjustment knob 210 is rotated, it can drive the winding dial wheel 221 to rotate synchronously, so that the winding dial wheel 221 can wind or release the pull rope 226. Optionally, the dial wheel mechanism 220 also includes a rubber pad retaining ring 225, which is arranged between the baffle 224 and the winding dial wheel 221. Optionally, the rubber pad retaining ring 225 is fixed to the baffle 224 by gluing or the like.

1 to 5 , 11 to 14 , and 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 knob 210 disposed 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 knob 210 and the dial mechanism 220 of the bending adjustment device 200, wherein 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 arranged at the distal end of the bending knob 210, the elastic wheel 122 is coaxially arranged in the screwing mechanism 110 and can be rotatably arranged in the locking wheel 121, the first locking member 123 is arranged at the distal end of the locking wheel 121, and the second locking member 124 is arranged 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 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 in the axial direction; when the screwing mechanism 110 is in the locked position, the screwing mechanism 110 drives the tension 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 maintains the 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.

The screwing mechanism 110 is an operating component of the insertion control device 100. The screwing mechanism 110 is arranged at the proximal end of the bending knob 210. The locking mechanism 120 is a component for locking the bending knob 210. The locking mechanism 120 is arranged between the bending 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 arranged on a 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 the locking mechanism 120 locks the bending knob 210, it 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.

The rotation of the screwing mechanism 110 is described in the directions shown in FIG. 2, FIG. 11 and FIG. 18. The screwing mechanism 110 has a relaxed position (FIG. 2), a locked position (FIG. 11) and a forceps lifting position (FIG. 18). In FIG. 2, the screwing mechanism 110 is in the relaxed position. At this time, the locking mechanism 120 is in an unlocked state, the bending knob 210 can perform a bending operation, and the entire insertion portion control device 100 is in a relaxed state. The screwing mechanism 110 rotates clockwise (upward) from the relaxed position to the locked position. As shown in FIG. 11, the screwing mechanism 110 drives the locking mechanism 120 to rotate synchronously. 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 portion control device 100 is in a locked state. The screwing mechanism 110 continues to rotate clockwise (upward), moving from the locked position to the pliers lifting position, as shown in FIG18 , the screwing mechanism 110 drives the locking mechanism 120 to rotate synchronously, the locking mechanism 120 keeps the state of locking the bending adjustment knob 210, and the screwing mechanism 110 also drives the pliers lifting mechanism 130 to move, so that the pliers lifting mechanism 130 controls the pliers lifting device to perform the pliers lifting action. It should be noted that the resetting of the pliers lifting device and the unlocking of the bending adjustment knob 210 are the reverse processes of the above process, and the screwing mechanism 110 rotates counterclockwise (downward lifting), which will not be described in detail later.

Specifically, the locking wheel 121 is hollow and fixedly disposed at the distal end of the bending knob 210. The tension wheel 122 is rotatably disposed 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 penetrated by a dial mechanism 220 to connect 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 disposed on the surface of the locking wheel 121 facing the dial mechanism 220, and the second locking member 124 is disposed on the surface of the baffle 224 of the dial mechanism 220 facing the locking wheel 121.

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. As shown in Figures 2 to 5, when the insertion portion 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 knob 210 can drive the dial mechanism 220 to control the bending of the bending portion (i.e., the bending of the distal end of the insertion portion, which will not be mentioned later).

As shown in Figures 11 to 14, 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 piece 123 gradually approaches the second locking piece 124 and presses the second locking piece 124 to press the winding dial wheel 221 of the dial mechanism 220, so that the rotation of the winding dial wheel 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.

The bending knob 210 is limited 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 limited rotation or inability to rotate here means that after the bending knob 210 is locked, the resistance required for the bending knob 210 to rotate is large, and there will be no misoperation, so that the bending portion can maintain a predetermined state. Subsequently, as shown in Figures 18 to 21, the doctor operates the screwing mechanism 110 clockwise to move to the forceps lifting position, and 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 maintains 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 portion control device 100 is in the forceps lifting state.

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, the second locking member 124 and the first locking member 123 are first locked by the cooperation of the locking wheel 121 and the tension wheel 122 to lock the bending knob 210 and the dial mechanism 220, and then the forceps lifting device is controlled to perform the forceps lifting action.

The insertion control device 100 of the above-mentioned embodiment integrates the locking function of the bending device 200 and the lifting function of the forceps lifting device to ensure that the bending knob 210 must be locked before the lifting device can be controlled. In this way, the bending portion can remain bent during the lifting operation, thereby ensuring the accuracy and safety of the operation during the operation of the lifting device, making the entire operation safer and more reliable. At the same time, after the bending device 200 has completed the bending, the bending knob 210 can be locked by operating the screwing mechanism 110 alone, and the lifting device can be controlled to perform the lifting operation by continuing to operate the screwing mechanism 110. In this way, the doctor can use it easily 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.

Referring to FIG. 1 , in one embodiment, the locking mechanism 120 further includes a first mounting portion 125, which is disposed at 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 of 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, and 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.

Referring to FIGS. 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 is provided with a connection to the forceps lifting knob 112, and can drive the forceps lifting knob 112 to drive the connecting shaft 113 to rotate around the axial direction. 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 in the axial direction. The connecting shaft 113 is provided with a bending adjustment knob 210 to connect the tension wheel 122, and a dial mechanism 220 to connect the forceps lifting mechanism 130. The knob housing 111 is the operating housing of the screwing mechanism 110, and the forceps lifting knob 112 is provided in the knob housing 111 and fixedly provided on the connecting shaft 113.

When the doctor operates the knob housing 111, the knob housing 111 can drive the connecting shaft 113 to rotate through the forceps lifting knob 112, so that the connecting shaft 113 drives the tension wheel 122 and the forceps lifting mechanism 130 to rotate relative to the bending knob 210 and the dial mechanism 220. It is worth noting that the structural form of the knob housing 111 is not limited in principle, as long as the knob housing 111 can be easily operated by the doctor. Optionally, the knob housing 111 has a protrusion to facilitate the doctor's grip.

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. In this way, after the first locking member 123 presses against the second locking member 124, the contact force can be increased by pressing and deforming to press the dial mechanism 220, thereby achieving the locking of the bending knob 210 and the dial mechanism 220.

Exemplarily, the second locking member 124 is a hand-feeling gasket, which is arranged on the winding dial 221. When the bending knob 210 is rotated, a touch sense can be generated through the hand-feeling gasket, so that the doctor can know the approximate 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 can also be gaskets or other structural forms that can achieve pressure locking.

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, so as to ensure that the first locking member 123 and the second locking member 124 are reliably 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 a threaded member, an interference fit, etc., and the second locking member 124 can also be fixed to the winding dial 221 by means of a threaded member, an interference fit, etc.

In one embodiment, at least one of the first locking member 123 and the second locking member 124 is arranged in an annular shape. The first locking member 123 and the second locking member 124 are both annular and coaxially arranged to increase the contact area between the first locking member 123 and the second locking member 124 to ensure the 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 also be arranged in an annular shape or other shapes, as long as sufficient contact area can be ensured.

Referring to Figures 1 to 5, 11 to 14, and 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.

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 arranged opposite to the first locking groove 1211 and the second locking groove 1212, and the sliding portion 1221 can slide in 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. The radial direction and circumferential direction are also applicable to other components of the endoscope, which will not be repeated in the following text.

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, and the other end of the first locking groove 1211 is also 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 part 1221 slides along the first locking groove 1211, it can push the locking wheel 121 to move axially, and when the sliding part 1221 slides in the second locking groove 1212, it will not push the locking wheel 121 to move axially.

When the insertion 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, as shown in Figures 4 and 5. The screwing mechanism 110 rotates from the relaxed position to the locked position, the insertion 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, so that the locking wheel 121 can drive the bending knob 210 to move axially, so that the first locking piece 123 on the locking wheel 121 presses against the second locking piece 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 in Figures 13 and 14.

When the screwing mechanism 110 rotates from the locking position to the clamp lifting position, the insertion portion control device 100 is in the clamp lifting 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 to keep the bending knob 210 locked, as shown in Figures 20 and 21. At the same time, when the screwing mechanism 110 rotates, it can drive the clamp lifting mechanism 130 to move, so that the clamp lifting mechanism 130 performs the clamp lifting action.

Optionally, there are multiple sliding parts 1221, and each sliding part 1221 corresponds to a first locking groove 1211 and a second locking groove 1212 along the outer circumference of the tension wheel 122. In this way, the multiple sliding parts 1221 cooperate with the corresponding first locking groove 1211 and second locking groove 1212 in the circumference of the tension wheel 122 to ensure the stability of the movement of the locking wheel 121, thereby ensuring that the first locking member 123 reliably presses the second locking member 124, thereby achieving reliable locking of the bending knob 210. Exemplarily, the number of sliding parts 1221 is three, and correspondingly, the first locking groove 1211 and the second locking groove 1212 are also three. Of course, in other embodiments of the present application, the number of sliding parts 1221 may also be other. Optionally, the first locking groove 1211 and the second locking groove 1212 are arranged to penetrate the locking wheel 121 in the radial direction.

3, 6 to 8, 12, 15, 16, 19, 22 and 23, in one embodiment, the locking mechanism 120 further includes a tightening member 126, which is disposed on the bending knob 210 and is located radially outside the tension wheel 122, and the tightening member 126 can move radially to tighten the outer peripheral surface of the tension wheel 122. The outer peripheral surface of the tension wheel 122 also has a recessed release groove 1222, a locking groove 1223 and a jaw lifting groove 1224, and the end of the tightening member 126 can move between the release groove 1222, the locking groove 1223 and the jaw lifting groove 1224 when the screwing mechanism 110 rotates.

The tensioning member 126 is radially arranged on the surface of the first mounting portion 125 facing the locking wheel 121, and the tensioning member 126 is located outside the locking wheel 121, and the tensioning member 126 can pass through the locking wheel 121 to abut against the outer peripheral surface of the tension wheel 122. The tensioning member 126 can move radially so that the tensioning member 126 keeps abutting against the outer peripheral surface of the tension wheel 122. The cooperation between the tensioning member 126 and the tension wheel 122 can increase the hand feel when operating the forceps lifting knob 112, so that the doctor can know the position of the forceps lifting knob 112 by feeling.

6 to 8, the release groove 1222, the locking groove 1223 and the jaw lifting groove 1224 are sequentially arranged 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 FIGS. 6 to 8. When the screwing mechanism 110 drives the tension wheel 122 to rotate in the clockwise direction, the tension wheel 122 can squeeze the top member 126 so that the top 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 top member 126. When the locking groove 1223 corresponds to the top member 126, the top member 126 can also be radially ejected and moved into the locking groove 1223, as shown in Figures 15 and 16. At this time, the screwing mechanism 110 is in the locking position. When the screwing mechanism 110 drives the tension wheel 122 to continue to rotate in the clockwise direction, the top 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 Figures 22 and 23.

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

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 by key connection or other connection methods.

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 pressing 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 is less than or equal to the radial depth of the locking groove 1223. In this way, when the pressing member 126 moves between the release groove 1222, the locking groove 1223 and the forceps lifting groove 1224, the blocking portion can press the pressing member 126, so that the pressing member 126 is in different positions, thereby making the forceps lifting knob 112 have different operating feel, which is convenient for doctors to use.

Referring to Fig. 6, Fig. 7, Fig. 15, and Fig. 16, in one embodiment, the tensioning member 126 includes a mounting seat, an elastic member, and a positioning member. The mounting seat is arranged on the first mounting portion 125, and the elastic member is arranged in the mounting seat and abuts against the mounting seat and the positioning member, so that the end of the positioning member abuts against the outer peripheral surface of the tension wheel 122. The mounting seat is arranged on the first mounting portion 125, and 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 make the positioning member extend radially out of the mounting seat to keep abutting against the outer peripheral surface of the tension wheel 122. Moreover, when the tension wheel 122 rotates, the outer peripheral surface of the tension wheel 122 can slide along the positioning member.

The tensioning member 126 abuts against the outer peripheral surface of the tension wheel 122 through the positioning member at the end, and can limit 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.

In one embodiment, there are multiple tension members 126, and the multiple tension members 126 are evenly distributed along the circumference. The multiple tension members 126 are evenly distributed on the first mounting portion 125 along the circumference of the tension wheel 122 to ensure that the tension wheel 122 is evenly stressed. Optionally, the locking wheel 121 has an avoidance position, and the tension member 126 passes through the avoidance position to abut against the outer circumference of the tension wheel 122.

Referring to Fig. 1, Fig. 3, Fig. 9, Fig. 10, Fig. 12, Fig. 17, Fig. 19 and Fig. 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 arranged at the distal end of the dial mechanism 220, the rotating member 132 is arranged at the screwing mechanism 110 and can be rotatably arranged on the forceps lifting frame 131, the sliding assembly 133 can be slidably arranged on the forceps lifting frame 131 and 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 a 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 the forceps lifting frame 131 can carry the rotating member 132 and the sliding assembly 133.

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

When the rotating member 132 rotates, due to the limiting effect of the sliding assembly 133, the sliding assembly 133 can output a moving motion, so that the sliding assembly 133 can drive the connecting rope to drive the forceps lifting device to move, so as to perform the forceps lifting action and control the lifting direction of the forceps lifting device. The rotating member 132 and the sliding assembly 133 form a cam mechanism. When the cam mechanism is in a return motion, the sliding assembly 133 is in a non-working state, and the sliding assembly 133 will not drive the forceps lifting device to move. When the cam mechanism is in a push motion, the sliding assembly 133 is in a working state and can drive the forceps lifting device to move.

9, 10, 17 and 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, and the end of the sliding assembly 133 can be 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, and when the sliding assembly 133 moves along the second rotating groove 1322, the sliding assembly 133 can move relative to the forceps lifting frame 131.

The first rotation groove 1321 is connected to the second rotation groove 1322. When the screwing mechanism 110 is in the release 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, as shown in Figure 9. When the screwing mechanism 110 rotates from the release position to the locking position, 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 in Figure 17. When the screwing mechanism 110 rotates from the locking position to the clamp lifting position, the input end of the sliding assembly 133 slides along the second rotation groove 1322, as shown in Figure 24.

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 tension wheel 122, so as to press the dial mechanism 220 and lock the bending knob 210. In 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 clamp lifting position, the first locking member 123 keeps pressing against the second locking member 124, so that the bending knob 210 remains locked. In 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 in the second rotation groove 1322.

The arc corresponding to the first rotating groove 1321 is the base circle arc, and the arc corresponding to the second rotating groove 1322 is the push motion arc. When the input end of the sliding component 133 slides in the first rotating groove 1321, the sliding component 133 will not output the movement, and will not drive the forceps lifting device to perform the forceps lifting action. When the input end of the sliding component 133 slides to the second rotating groove 1322, since the radius of the first rotating groove 1321 is greater than the radius of the second rotating groove 1322, the rotating member 132 can push the sliding component 133 to move when it rotates, so that the sliding component 133 controls the forceps lifting device to perform the forceps lifting action.

Optionally, the rotating member 132 includes a connecting portion 1323 and a rotating portion 1324, one end of the connecting portion 1323 is arranged 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 arranged on 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, so as to realize the driving of the sliding assembly 133. Optionally, the rotating member 132 is a rocker structure. Of course, in other embodiments of the present application, the rotating member 132 can also be a fan-shaped or other structural forms.

Referring to Figures 1, 9, 10, 17 and 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 disposed 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 disposed on the forceps lifting frame 131, and the pushing rod 1332 can be movably disposed 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.

The pusher 1331 is a component at the input end of the sliding assembly 133, the push rod 1332 is a component at the output end of the sliding assembly 133, and the sliding guide rail 1333 is a guide component. The pusher 1331 can be slidably adapted in the first rotating groove 1321 and the second rotating groove 1322, the pusher 1331 can be rotatably arranged on the push rod 1332, the push rod 1332 can be slidably arranged on the sliding guide rail 1333, and the sliding guide rail 1333 is fixedly arranged on the clamp 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.

Optionally, the pusher 1331 is a cylindrical pusher. Of course, in other embodiments of the present application, the pusher 1331 can also be other components that can slide in the first rotating groove 1321 and the second rotating groove 1322. Optionally, the sliding guide 1333 has a slide groove, and the push rod 1332 can be slidably arranged in the slide groove and extend through the slide groove. Of course, in other embodiments of the present application, the sliding guide 1333 and the push rod 1332 can also be a matching form of a slide rail and a slider, or other structural forms that can achieve sliding matching.

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 disposed on the push rod 1332 and can be 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, and can facilitate the connection between the push member 1331 and the push rod 1332 without affecting the sliding of the push member 1331. Optionally, the second mounting portion 1334 is a mounting housing or a mounting bracket, etc.

Optionally, the sliding assembly 133 further includes a fixing member, which is disposed at the distal end of the connecting shaft 113 and at the distal end of the rotating member 132, and the fixing member is used to limit the axial position of the rotating member 132 to prevent the rotating member 132 from axially disengaging 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 the like.

Referring to Fig. 1, Fig. 9, Fig. 17 and Fig. 24, in one embodiment, the forceps lifting mechanism 130 further includes a limiter 134, which is disposed 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 disposed on the distal end side 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, so as to avoid excessive rotation of the rotating member 132, thereby preventing the forceps lifting device from being excessively opened, as long as the opening angle of the forceps lifting device can meet the use requirements.

It is worth noting that the fixed position of the limiter 134 on the forceps lifting frame 131 is preset, the rotation angle of the rotating member 132 is preset, 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.

Referring to Fig. 1, Fig. 3 and Fig. 4, in one embodiment, the insertion part 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 the operating part. The support assembly 140 is disposed at the distal end of the forceps lifting mechanism 130, the proximal end of the support assembly 140 is fixed to the forceps lifting frame 131, and the distal end of the support assembly 140 is fixed to the operating handle of the operating part. The support assembly 140 is used to support the distal end of the insertion part control device 100, so as to ensure that the insertion part control device 100 is reliably disposed in the operating part.

Referring to Fig. 1, Fig. 3 and Fig. 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 arranged on the pliers lifting frame 131 of the pliers lifting mechanism 130, the distal end of the support rod 141 is arranged on the support plate 142, and the support plate 142 is fixed to the operating part. The support rod 141 extends axially, the proximal end of the support rod 141 is fixed to the pliers lifting frame 131 by a fastener such as a screw, the proximal end of the support rod 141 is fixed to the support rod 141 by a fastener such as a screw, and the support plate 142 is mounted to the support handle of the operating part.

Optionally, there are multiple support rods 141, and the multiple support rods 141 are evenly distributed to ensure the stability of the support. In one embodiment, the support assembly 140 also includes a transfer tube 143, which is arranged at the proximal end of the support plate 142, and the transfer tube 143 is connected to the operating handle of the operating part. The connection relationship between the support plate 142 and the operating handle is established through the transfer tube 143, which is convenient for assembly.

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

The knob housing 111, the forceps lifting knob 112 and the connecting shaft 113 are assembled and fixed, such as by gluing, to form the screwing mechanism 110. The jacking 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, and the first mounting portion 125 is mounted to the bending knob 210, so that the locking mechanism 120 is fixed to the distal end of the bending knob 210. The limit knob 223 is fixed to the winding dial wheel 221 by means of fasteners such as threaded parts, 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 wheel 221 and extends out, the inner winding wheel 222 is fixed to the distal end of the winding dial wheel 221 by means of fasteners such as threaded parts, the second locking piece 124 is fixed to the proximal side of the winding dial wheel 221, the baffle plate 224 and the rubber pad retaining ring 225 are fixed to the proximal side of the winding dial wheel 221, and a dial mechanism 220 is formed.

At this time, the second locking member 124 is exposed from the baffle plate 224 and is arranged toward the first locking member 123. The baffle plate 224 is fixed to the first mounting portion 125 by a fastener such as a screw member, so that the dial mechanism 220 is fixed to the bending knob 210. The push rod 1332 is installed to the sliding guide rail 1333, the push member 1331 is installed to the second mounting portion 1334, and then the second mounting portion 1334 is installed to the push rod 1332, the rotating member 132 is installed to the connecting shaft 113, the push member 1331 is slidably installed to the first rotating groove 1321 and the second rotating groove 1322, and the sliding guide rail 1333 is installed to the lifting jaw frame 131 to form the lifting jaw mechanism 130, and the lifting jaw frame 131 is fixed to the dial mechanism 220. The transfer tube 143 is fixed to the support plate 142 by simplification, and the support rod 141 is supported to connect the lifting jaw 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.

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

Referring to FIGS. 1 to 10 , when the insertion control device 100 is in a relaxed state, the screwing mechanism 110 is in a relaxed position, the positioning member of the tension member 126 is fixed in the relaxation groove 1222 of the tension wheel 122, as shown in FIGS. 6 and 7 , the sliding portion 1221 of the outer peripheral surface of the tension wheel 122 is at the end of the first locking groove 1211 away from the second locking groove 1212, and there is a moving distance between the first locking member 123 of the locking wheel 121 and the second locking member 124 on the dial mechanism 220 in the circumferential direction, as shown in FIGS. 4 and 5 . At this time, the winding dial 221 is not pressed, the bending knob 210 is in a relaxed state, and 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 forceps lifting frame 131, the push rod 1332, the pushing member 1331, the sliding guide rail 1333 and the limit member 134 form a cam mechanism, and the pushing member 1331 is at one end of the first rotating groove 1321 away from the second rotating groove 1322, as shown in Figure 9, and the forceps lifting device is in a non-working state.

Referring to Figures 1 and 11 to 17, when the insertion control device 100 is in a locked state, the screwing mechanism 110 rotates clockwise (upward) from a relaxed position to a 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 Figures 15 and 16. At the same time, the sliding portion 1221 on the outer 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 side, so that the first locking piece 123 on the distal end side of the locking wheel 121 presses against the second locking piece 124 of the winding dial 221, so that the winding dial 221 is tightened, thereby realizing the locking of the bending adjustment knob 210, as shown in Figures 13 and 14.

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, as shown in Figure 17. The distance between the pushing member 1331 and the axial center of the connecting shaft 113 remains unchanged, and the pushing member 1331 does not push the push rod 1332 to slide in the guide rail, and the lifting device is in a working state.

Referring to FIGS. 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, and the screwing mechanism 110 drives the tension wheel 122 to rotate synchronously, and the positioning member of the tension 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 FIGS. 22 and 23 . At the same time, the sliding portion 1221 on the outer peripheral surface of the tension wheel 122 slides along the second locking groove 1212, and the locking wheel 121 remains at 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 in FIGS. 20 and 21 . When 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, and the pushing member 1331 is pushed away from the axis of the connecting shaft 113 to drive the push rod 1332 to slide in the sliding guide rail 1333. As shown in FIG. 24, the push rod 1332 pulls the connecting rope to control the lifting device to perform the lifting action, and the lifting device is in a working state. The rotation angle of the rotating member 132 is limited by the limit member 134.

The forceps lifting device control device of the present application integrates the locking function of the bending adjustment device 200 and the lifting function of the forceps lifting device to ensure that the bending adjustment knob 210 must be locked before the lifting device control operation can be performed. In this way, the bending portion can remain in a bent state during the lifting operation, thereby ensuring the accuracy and safety of the operation when operating the lifting device, 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 lifting device to perform the lifting operation. In this way, the doctor can easily use it with only one hand, which improves the convenience and comfort of human-computer interaction, shortens the operation time, and improves the efficiency of the operation.

The insertion control device 100 is a control knob that integrates locking and forceps lifting control, which can quickly realize locking, unlocking and forceps lifting operations. The user doctor can realize convenient operation with only one hand, which reduces the complexity and labor intensity of the operation. At the same time, this operation mode can shorten the operation time, improve the operation efficiency, and reduce the pain of the patient caused by the operation time. Moreover, the insertion control device 100 mechanically ensures the operation sequence of locking the bending adjustment first and then lifting the forceps, making the entire operation process safer and more reliable.

The present application also provides an endoscope, including an operating part and an insertion part, the operating part including a bending device 200 and an insertion part control device 100 as in any of the above embodiments, the insertion part at least including a bending part and a head end, the head end at least including a forceps lifter, the bending device 200 is arranged at the proximal end of the insertion part, and can be bent and connected to the distal end of the bending part, the forceps lifter is arranged at the distal end of the bending part, the insertion part control device 100 is connected to the forceps lifter, and the insertion part control device 100 is used to lock or unlock the bending device 200 and control the direction in which the forceps lifter is lifted. After the endoscope adopts the insertion part control device 100 of the above embodiment, it can quickly realize the locking and unlocking of the bending part and the lifting operation of the forceps lifter, and the user doctor can realize 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.

The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims (10)

1. An insertion portion control device, characterized in that it comprises: A screwing mechanism, which can rotate a bending adjustment knob provided on the bending adjustment device; a locking mechanism, which is coaxially arranged with the screwing mechanism and can move with the screwing mechanism, and the locking mechanism is 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 is arranged at the distal end of the bending adjustment knob, the elastic wheel is coaxially arranged with the screwing mechanism and can be rotatably arranged in the locking wheel, the first locking member is arranged at the distal end of the locking wheel, and the second locking member is arranged at the proximal end of the dial mechanism and is arranged opposite to the first locking member; and 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 wheel mechanism and is used to connect the forceps lifting device; There is a preset distance between the first locking piece and the second locking piece 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 piece presses against the second locking piece to lock the bending adjustment knob, and the screwing mechanism is in a locked position at this time; the first locking piece maintains a state of pressing against the second locking piece, and the screwing mechanism can drive the forceps lifting mechanism to rotate to drive the forceps lifting device to perform the forceps lifting action, and the screwing mechanism is in the forceps lifting position. 2. The insertion portion control device according to claim 1, characterized in that 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, characterized in that the locking mechanism further comprises a tightening member, the tightening member is arranged on the bending adjustment knob and is 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 tensioning 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, characterized in that the radial depth of the lifting groove is less than the radial depth of the release groove, and is less than or equal to the radial depth of the locking groove; And/or, the tensioning member includes a mounting seat, an elastic member and a positioning member, the mounting seat is arranged on the first mounting portion of the bending adjustment knob, the elastic member is arranged in the mounting seat and abuts against the mounting seat and the positioning member, so that the end 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 part control device according to claim 1 is characterized in that the forceps lifting mechanism includes a forceps lifting frame, a sliding assembly and a rotating part, the forceps 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 forceps lifting frame, the sliding assembly can be slidably arranged on the forceps lifting frame and connected to the proximal end of the forceps lifting device, and 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 and connected along the circumferential direction, and the end of the sliding component can be slidably disposed in the first rotating groove and the second rotating groove; The radius of the second rotating groove is greater than the radius of the first rotating groove. When the sliding assembly moves along the second rotating groove, the sliding assembly can move relative to the forceps lifting frame. 7. The insertion part control device according to claim 6 is characterized in that 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 forceps lifting frame, the pushing rod can be movably arranged in the sliding guide rail, and the end of the pushing rod is connected to the forceps 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 comprises 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, and 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 comprises a support assembly, the support assembly is disposed at the distal end of the forceps lifting mechanism and supports the connection operating portion; The support assembly includes a support rod and a support plate, the proximal end of the support rod is arranged on the forceps lifting frame of the forceps lifting mechanism, the distal end of the support rod is arranged on the support plate, and the support plate is fixed to the operating part. 10. An endoscope, characterized in that it comprises an operating portion and an insertion portion, 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, the head portion comprises at least a forceps lifter; The bending adjustment device is arranged at the proximal end of the insertion part and can be adjusted to be connected to the distal end of the bending part. The forceps lifting device is arranged at the distal end of the bending part, and the insertion part control device is connected to the forceps lifting device. The insertion portion control device is used to lock or unlock the bending adjustment device and control the lifting direction of the forceps lifting device.