Endoscope unblocking structure, endoscope handle and endoscope

Abstract

The present invention provides an endoscope unblocking structure, an endoscope handle and an endoscope, belonging to the technical field of endoscopes. It includes an instrument tube, a connecting valve and a control component; the connecting valve and the control component are both installed on the instrument tube, the control component is arranged near the proximal end of the instrument tube relative to the connecting valve, the connecting valve is connected to the inside of the instrument tube, and is used to control whether the instrument tube is connected to the external environment, the control component is installed outside the instrument tube, the control component includes a mounting body and a movable part, the mounting body is connected to the instrument tube, and the movable part is movably arranged on the mounting body; the movable part is configured to squeeze the instrument tube under the action of an external force to separate the inside of the instrument tube into two parts, and when the movable part separates the inside of the instrument tube into two parts, the movable part can move toward the connecting valve under the action of an external force. The present application adjusts the pressure in the instrument tube by setting a movable part to cooperate with the instrument tube and moving the movable part, thereby conducting the blocked instrument tube.

Description

Technical Field

[0001] The present invention belongs to the technical field of endoscopes, and in particular relates to an endoscope unblocking structure, an endoscope handle and an endoscope. Background Art

[0002] In the treatment of urinary stone diseases, in the prior art, ureteroscope is generally used to treat kidney stones. Specifically, the ureteroscope is inserted into the kidney, and then the stones in the renal pelvis are broken up by laser, and then the broken stones are discharged out of the body through the instrument channel through the effect of irrigation and negative pressure suction.

[0003] However, in the actual operation process, it is easy for stones to block the instrument tube, making it difficult for the stones to be expelled from the body, which increases the difficulty of the doctor's intraoperative operation. Summary of the invention

[0004] The purpose of this application is to provide an endoscope unblocking structure, an endoscope handle and an endoscope to solve the above-mentioned technical problems existing in the prior art.

[0005] This application is implemented as follows:

[0006] In the first aspect, an embodiment of the present application provides an endoscope unblocking structure, including an instrument tube, a connecting valve and a control component; the connecting valve and the control component are both installed on the instrument tube, the control component is arranged near the proximal end of the instrument tube relative to the connecting valve, the connecting valve is connected to the inside of the instrument tube, and is used to control whether the instrument tube is connected to the external environment, the control component is installed outside the instrument tube, the control component includes a mounting body and a movable part, the mounting body is connected to the instrument tube, and the movable part is movably arranged on the mounting body; the movable part is configured to squeeze the instrument tube under the action of an external force to divide the inside of the instrument tube into two parts, and when the movable part divides the inside of the instrument tube into two parts, the movable part can move toward the connecting valve under the action of the external force.

[0007] In a second aspect, an embodiment of the present application provides an endoscope handle, comprising an endoscope unblocking structure provided in the embodiment of the first aspect.

[0008] In a third aspect, an embodiment of the present application provides an endoscope, including the endoscope handle provided in the embodiment of the second aspect.

[0009] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0010] In the present application, a control component is provided and the movable part of the control component is used to squeeze the instrument tube, thereby dividing the interior of the instrument tube into two parts, so that the parts corresponding to the instrument tube and the movable part can form a closed end, and the connecting valve and the stone are used to seal the instrument tube, so that a sealed space can be formed inside the instrument tube, and liquid is injected into the interior of the instrument tube through the connecting valve. By controlling the movable part to move relative to the instrument tube toward the connecting valve, the pressure inside the instrument tube can be enhanced, thereby unblocking the part of the instrument tube blocked by the stone and conducting the instrument tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 The overall structure of the deblocking structure provided in some embodiments of the present application is shown in FIG. Figure 1 ;

[0013] Figure 2 This application is about Figure 1 Detailed view of point A;

[0014] Figure 3 is a cross-sectional view of the overall structure of the de-blocking structure provided in some embodiments of the present application;

[0015] Figure 4 This application is about Figure 3 Detail of point B;

[0016] Figure 5 The overall structure of the deblocking structure provided in some embodiments of the present application is shown in FIG. Figure 2 ;

[0017] Figure 6 This application is about Figure 5 Detailed view of point C;

[0018] Figure 7 This is a schematic diagram of the coordination of the instrument tube and the control assembly provided in some embodiments of the present application. Figure 1 ;

[0019] Figure 8 is a schematic diagram of the structure of a control component provided in some embodiments of the present application;

[0020] Fig. 9 This is a schematic diagram of the coordination of the instrument tube and the control assembly provided in some embodiments of the present application. Figure 2 ;

[0021] Fig.10 It is a schematic diagram of the overall structure of the installation body provided in some embodiments of the present application;

[0022] Fig.11 It is a schematic diagram of the overall structure of the movable parts provided in some embodiments of the present application.

[0023] In the figure: 10-endoscope handle, 100-instrument tube, 200-connecting valve, 300-control component, 310-installation body, 311-movable track, 311a-first sub-track, 311b-second sub-track, 312-pressing wall, 320-movable part, 321-connecting part, 322-extrusion part, 323-bump, 330-elastic part, 340-stop block, 400-syringe, 500-suction valve, 600-pressing device, 610-pressing end. DETAILED DESCRIPTION

[0024] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0025] It should be noted that, in each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0026] The embodiment of the present application provides an endoscope unblocking structure, which can control the internal pressure of the instrument tube 100 to push the stones blocked in the instrument tube 100 to move and open the instrument tube 100.

[0027] The unblocking structure provided in the embodiment of the present application includes an instrument tube 100, a connecting valve 200 and a control assembly 300. Figure 1 , Figure 3 and Figure 5 In specific use, the distal opening of the instrument tube 100 is located in the body cavity, the proximal tube section of the instrument tube 100 is fixed in the endoscope handle 10, and the proximal opening of the instrument tube 100 is connected to the suction valve 500. When the suction valve 500 is in the conducting state, the suction valve 500 can be connected to a negative pressure suction device to absorb the material in the instrument tube 100 out of the instrument tube 100. The instrument tube 100 also has an instrument opening located between the distal opening and the proximal opening, and the connecting valve 200 is installed at the instrument opening.

[0028] The connecting valve 200 is connected to the inside of the instrument tube 100, and the connecting valve 200 is used to control whether the instrument tube 100 is connected to the external environment. When the connecting valve 200 is in the conducting state, the inside of the instrument tube 100 is connected to the external environment, and the operator can use instruments to reach into the instrument tube 100, or inject the required liquid into the instrument tube 100. When the connecting valve 200 is in the closed state, the inside of the instrument tube 100 is not connected to the external environment. In some usage methods of the endoscope, when the connecting valve 200 is in the closed state, the negative pressure suction device connected to the suction valve 500 can be used to absorb the material in the instrument tube 100 to the outside of the instrument tube 100.

[0029] The control assembly 300 and the connecting valve 200 are both installed on the instrument tube 100, and the control assembly 300 is arranged near the proximal end of the instrument tube 100 relative to the connecting valve 200. Figure 1 , Figure 3 and Figure 5 The control assembly 300 is installed outside the instrument tube 100, and the control assembly 300 includes a mounting body 310 and a movable member 320. Figure 2 and Figure 4 As shown, the installation body 310 is connected to the instrument tube 100, and the movable member 320 is movably arranged on the installation body 310. The position of the movable member 320 can change relative to the installation body 310, and the installation body 310 is directly installed on the instrument tube 100, and the installation position is determined by the instrument tube 100.

[0030] The movable member 320 is configured to squeeze the instrument tube 100 under the action of an external force to separate the interior of the instrument tube 100 into two parts. The interior of the instrument tube 100 is separated into two parts, which means that the movable member 320 squeezes the instrument tube 100 and compresses the space inside the instrument tube 100, thereby separating the space inside the instrument tube 100 on both sides of the movable member 320 into two parts, so that the two parts of the space inside the tube are not connected. In layman's terms, the movable member 320 flattens the compressed part on the instrument tube 100 and blocks it. The squeezing of the movable member 320 forms a closed end at the position where the instrument tube 100 and the movable member 320 contact each other. Furthermore, when the movable part 320 divides the interior of the instrument tube 100 into two parts, the movable part 320 can move toward the connecting valve 200 under the action of an external force. During the movement of the movable part 320, the movable part 320 keeps squeezing the instrument tube 100, that is, allowing the closed end to move forward toward the connecting valve 200; as the closed end moves forward toward the connecting valve 200, the volume of the instrument tube 100 between the blockage and the closed end will decrease.

[0031] When the stone blocks the instrument tube 100, and the blocking position is located at the far end of the connecting valve 200, the position where the stone and the instrument tube 100 are connected forms a closed end. At the same time, the movable part 320 is used to squeeze the instrument tube 100 to form another closed end on the instrument tube 100. When the connecting valve 200 is closed, the space inside the instrument tube 100 between the stone and the movable part 320 can form a sealed space isolated from the outside. The sealed space is filled with liquid medium. By controlling the movable part 320 to move toward the connecting valve 200, the size of the sealed space can be reduced, thereby increasing the pressure in the sealed space. The pressures in the instrument tubes 100 on both sides of the stone are different. Under the action of the pressure difference, the stone can be pushed to move in the instrument tube 100, thereby conducting the instrument tube 100.

[0032] In some embodiments, the liquid medium in the sealed space can be filled before the movable part 320 squeezes the instrument tube 100. Before controlling the movable part 320 to move, the connecting valve 200 is controlled to be in a conducting state, and then the liquid medium is injected into the instrument tube 100 through the connecting valve 200. The liquid medium can also be saline or other liquids. The distal end of the instrument tube 100 is blocked by stones. After the liquid medium enters the instrument tube 100, it gradually fills the instrument tube 100. When the instrument tube 100 from the stone to the movable part 320 is filled with liquid, the injection of liquid can be stopped, the connecting valve 200 is sealed, the movable part 320 is controlled to move, and the instrument tube 100 is squeezed, so that the sealed space is filled with the filling medium to coordinate the movement of the movable part 320 to regulate the pressure inside it.

[0033] In other embodiments, the liquid medium in the sealed space can also be filled after the movable member 320 squeezes the instrument tube 100. First, the movable member 320 is controlled to squeeze the instrument tube 100 to form a closed end at this position, and then the liquid is injected into the instrument tube 100 using the connecting valve 200 until the sealed space is filled with liquid, and the connecting valve 200 is closed, so that the movable member 320 can be controlled to move to adjust the pressure inside the sealed space.

[0034] Liquid medium can be injected into the instrument tube 100 through the syringe 400. Figure 1 , Figure 3 and Figure 5 As shown, after the liquid injection is completed, the syringe 400 can be removed and the connecting valve 200 can be kept in a closed state by utilizing its own structure. Alternatively, the syringe 400 can be left intact and directly used to isolate the internal and external environments of the instrument tube 100.

[0035] The installation position of the installation body 310 is fixed, and the moving distance of the movable member 320 on the installation body 310 is limited. By moving the movable member 320, the adjustment range of the pressure inside the instrument tube 100 is also limited. By controlling the moving distance of the movable member 320, the maximum pressure inside the instrument tube 100 is controlled to prevent the pressure inside the instrument tube 100 from being higher than the pressure that its structure can withstand, and to prevent the situation where the pressure inside the instrument tube 100 is too high to cause damage to its structure.

[0036] In existing endoscope products, the suction valve 500 and the connecting valve 200 are generally connected to the instrument tube 100. The embodiment provided by the present application directly installs the control component 300 on the instrument tube 100, and uses the control component 300 to cooperate with the connecting valve 200 and the stone blocking the instrument tube 100 to adjust the pressure inside the instrument tube 100, so as to push the stone to move through the pressure difference, and complete the conduction of the instrument tube 100. The maximum pressure inside the instrument tube 100 can be regulated by controlling the moving path of the movable part 320, and its maximum pressure is controllable, and will not appear at the moment when the instrument tube 100 is conducted, and the pressure inside the instrument tube 100 increases sharply, and the instrument tube 100 is not easy to be damaged. At the same time, the amount of fluid medium inside the instrument tube 100 is also controllable. When the instrument tube 100 is conducted, no new fluid is injected, and no further kinetic energy is given to the stone. After the stone moves under the drive of the pressure difference, its subsequent movement speed will gradually weaken, which can avoid the damage caused by the stone to the human body, and has high safety performance. In some embodiments of the present application, stones blocking the instrument tube 100 are taken as an example. In other embodiments, the instrument tube 100 may be blocked by other substances, such as blood clots, foreign matter, sputum, etc.

[0037] The movable part 320 has two movable strokes relative to the mounting body 310, one of which is the stroke in which the movable part 320 moves from a position where the instrument tube 100 is not squeezed to a position where the instrument tube 100 is squeezed, and the other is the stroke in which the movable part 320 is always in a state of squeezing the instrument tube 100 and moves toward the connecting valve 200.

[0038] Corresponding to the movable travel of the movable member 320, the mounting body 310 is provided with a movable track 311, and the movable member 320 is guided and matched with the movable track 311, and the movable member 320 can move along the track direction of the movable track 311. The movable track 311 includes a first sub-track 311a and a second sub-track 311b connected to each other. Fig.10 As shown, the two sub-tracks are connected, and the movable member 320 can directly move from the first sub-track 311a to the second sub-track 311b, and switch between the two sub-tracks.

[0039] The movable member 320 can move in the first sub-track 311a. Figure 1 , Figure 2 and 7 As shown, the instrument tube 100 is squeezed or released. The movable member 320 moves toward the instrument tube 100 in the first sub-track 311a, and the movable member 320 gradually approaches the instrument tube 100, and can squeeze the instrument tube 100. The movable member 320 moves away from the instrument tube 100 in the first sub-track 311a, and the movable member 320 gradually moves away from the instrument tube 100, and the squeezing effect of the movable member 320 on the instrument tube 100 gradually weakens or even disappears, and the movable member 320 releases the squeezing of the instrument tube 100, and the instrument tubes 100 on both sides of the movable member 320 are connected.

[0040] The movable member 320 moves in the second sub-track 311b, referring to Figure 5 , Figure 6 and Fig. 9 As shown, when the instrument tube 100 is squeezed and the inside of the instrument tube 100 is divided into two parts, the moving part 320 moves toward the connecting valve 200 in the second sub-track 311b, which can increase the pressure inside the instrument tube 100. The moving part 320 moves in the second sub-track 311b in a direction away from the connecting valve 200, which can reduce the pressure inside the instrument tube 100.

[0041] In the process of controlling the movable part 320 to move in the second sub-track 311b and adjusting the internal pressure of the instrument tube 100, the movable part 320 can be moved back and forth so that the pressure in the instrument tube 100 changes intermittently, making it easier to push the stone to move.

[0042] In some preferred embodiments, the second sub-track 311b is equipped with an elastic member 330, see Figure 2 , Figures 6 to 10 As shown, the elastic member 330 is located on the side of the movable member 320 away from the instrument tube 100, and the elastic member 330 is pressed tightly between the movable member 320 and the inner wall of the second sub-track 311b. The elastic member 330 is pressed tightly by the movable member 320 and the second sub-track 311b, and the pressed elastic member 330 can exert a force on the movable member 320 to move toward the instrument tube 100, so that the movable member 320 can press against the instrument tube 100, so that the movable member 320 can squeeze the instrument tube 100 in the second sub-track 311b, and the inside of the instrument tube 100 is always in a state of being divided into two parts by the movable member 320, so that the position where the instrument tube 100 contacts the movable member 320 forms a closed end.

[0043] Furthermore, the movable member 320 can compress the elastic member 330 under the driving force of the internal pressure of the instrument tube 100 to release the partition inside the instrument tube 100. The movable member 320 is subjected to the force of the elastic member 330 and the force of the instrument tube 100, and the movable member 320 maintains balance under the two forces. When the internal pressure of the instrument tube 100 increases, the force of the instrument tube 100 on the movable member 320 gradually increases until it is greater than the force of the elastic member 330 on the movable member 320. The movable member 320 will be pushed by the instrument tube 100 to compress the elastic member 330, the position of the movable member 320 changes, the squeezing effect of the movable member 320 on the instrument tube 100 is weakened, the movable member 320 can no longer separate the instrument tube 100 into two parts, and the partition inside the instrument tube 100 by the movable member 320 is released.

[0044] Only when the pressure inside the instrument tube 100 increases to a certain level, can the movable part 320 be pushed to move to release the isolation of the instrument tube 100. At this time, the pressure inside the instrument tube 100 can be defined as the protection pressure. Once the pressure inside the instrument tube 100 reaches the protection pressure, the movable part 320 will move to release the pressure in the sealed space formed by the stone, the movable part 320 and the connecting valve 200 in the instrument tube 100, further avoiding excessive pressure inside the instrument tube 100.

[0045] When designing and manufacturing the unblocking structure, the protection pressure is determined according to the upper limit of the pressure that the instrument tube 100 can withstand, and the size and structure of the elastic member 330 can be determined according to the protection pressure to ensure that when the internal pressure of the instrument tube 100 reaches the protection pressure, the movable machine can be pushed by the instrument tube 100 to compress the elastic member 330.

[0046] The elastic member 330 is installed on the second sub-track 311b. In some preferred embodiments, the length of the elastic member 330 is greater than or equal to the length of the second sub-track 311b, and at least part of the elastic member 330 extends from the end of the second sub-track 311b to the beginning of the second sub-track 311b. Figure 2 , Figures 6 to 10 The starting end of the second sub-track 311b is the end of the second sub-track 311b connected to the first sub-track 311a, and the terminal end of the second sub-track 311b is the end of the second sub-track 311b away from the first sub-track 311a.

[0047] During the movement of the movable member 320 in the second sub-track 311b, the movable member 320 is in contact with the elastic member 330. When the movable member 320 moves toward the connecting valve 200 to increase the internal pressure of the instrument tube 100, once the internal pressure of the instrument tube 100 is too high, the movable member 320 can be pushed to move to protect the structure of the instrument tube 100. In addition, the movable member 320 is always in contact with the elastic member 330 in the second sub-track 311b, and the operating feel of the movable member 320 can be kept stable, which is more conducive to the operator's operation.

[0048] When the length of the elastic member 330 is equal to the length of the second sub-track 311b, the elastic member 330 covers the entire extension path of the second sub-track 311b. When the length of the elastic member 330 is greater than the length of the second sub-track 311b, after the elastic member 330 covers the second sub-track 311b, the redundant second sub-track 311b can be laid into the first sub-track 311a. Preferably, the elastic member 330 also covers the first sub-track 311a, balancing the operating feel of the movable member 320 moving in the first sub-track 311a and the second sub-track 311b, so as to avoid excessive changes in the feel and affecting the operation of the operator.

[0049] The elastic member 330 may be a spring or other elastic structure, such as a rubber block. In some embodiments, the elastic member 330 is configured as a ring structure. Fig.10 As shown, the elastic member 330 is directly clamped in the movable track 311, and the elastic member 330 has high strength and rigidity. A stopper block 340 is also provided in the annular space formed by the elastic member 330. Within the range of the second sub-track 311b, the side of the stopper block 340 away from the instrument tube 100 is fixed to the elastic member 330, and there is a gap between the side of the stopper block 340 close to the instrument tube 100 and the elastic member 330, which is the compression gap of the elastic member 330. In the case where the movable member 320 compresses the elastic member 330, the compression gap is compressed, and the part of the elastic member 330 released from the movable member 320 gradually approaches the stopper block 340, until the elastic member 330 is pressed against the stopper block 340, the elastic member 330 will no longer be compressed, and the movable member 320 can no longer move. By providing the stopper block 340, the compression stroke of the elastic member 330 can be flexibly adjusted, thereby improving the use flexibility of the control device.

[0050] In some embodiments, the movable member 320 is provided with a connecting portion 321, referring to Figures 6 to 9As shown, the connecting portion 321 is located in the movable track 311, and the connecting portion 321 can move along the extension direction of the movable track 311, and the connecting portion 321 is a cylindrical structure, and the connecting portion 321 can rotate in the movable track 311. The cylindrical connecting portion 321 can roll while moving in the movable track 311, and its movement resistance is small, which makes it easier for the operator to control the movement of the movable member 320.

[0051] The movable member 320 includes an extrusion portion 322, and the connecting portion 321 is mounted on the extrusion portion 322. Figures 6 to 9 as well as Fig.11 As shown, the extrusion portion 322 is used to contact the instrument tube 100, and the extrusion portion 322 is also a cylindrical structure, and is coaxially arranged with the connecting portion 321. During the rotation of the connecting portion 321, the contact between the extrusion portion 322 and the instrument tube 100 is stable, and the extrusion portion 322 can stably squeeze the instrument tube 100, so that the inside of the instrument tube 100 is always isolated. At least part of the outer peripheral wall of the extrusion portion 322 is exposed to the installation body 310 for the operator to move, which makes it easier for the operator to move the extrusion portion 322 to control the movement of the movable member 320.

[0052] In some preferred embodiments, the outer peripheral wall of the squeezing portion 322 is provided with a plurality of protrusions 323 distributed along the circumference of the squeezing portion 322. The protrusions 323 can increase the friction between the operator and the outer peripheral wall of the squeezing portion 322, which is more conducive to the operator to move the squeezing portion 322. At the same time, since the protrusions 323 are protruding relative to the outer peripheral wall of the squeezing portion 322, during the process of the protrusions 323 contacting the instrument tube 100, the protrusions 323 squeeze the instrument tube 100 to a higher degree, and a greater force is required to move the squeezing portion 322, thereby slowing down the speed at which the operator moves the squeezing portion 322, and avoiding the situation in which the pressure inside the instrument tube 100 increases too quickly and causes the instrument tube 100 to be damaged. At the same time, since the protrusions 323 are pressed against the instrument tube 100, which will bring about a change in the operating feel, the operator can directly judge the rotation distance of the squeezing portion 322 by the change in the operating feel, without paying extra attention to the position of the squeezing portion 322, which is more convenient for operation.

[0053] In some embodiments, reference Figures 7 to 9 As shown, the installation body 310 is provided with an installation groove, and two groove walls corresponding to each other are provided with movable tracks 311. The movable part 320 is installed in the installation groove, and the movable part 320 is also provided with two connecting parts 321. The two connecting parts 321 are respectively located in the movable track 311, thereby improving the connection stability between the movable part 320 and the installation body 310.

[0054] In some embodiments of the present application, when the movable part 320 squeezes the instrument tube 100, it can cooperate with the inner wall of the endoscope handle 10, and the instrument tube 100 is squeezed by the movable part 320 and the inner wall of the endoscope handle 10; under such a layout, there are restrictions on the installation position of the instrument tube 100, and the installation position of the instrument tube 100 needs to be close to the inner wall of the endoscope handle 10, so that it is easy to press against the inner wall of the endoscope handle 10 under the squeezing of the movable part 320.

[0055] In other embodiments of the present application, the installation body 310 is sleeved outside the instrument tube 100, and the movable member 320 can squeeze the instrument tube 100 to the inner wall of the installation body 310. The movable member 320 directly cooperates with the installation body 310 to squeeze the instrument tube 100. Compared with squeezing the instrument tube 100 to the inner wall of the endoscope handle 10, squeezing the instrument tube 100 to the inner wall of the installation body 310 has lower requirements on the position of the instrument tube 100, and the installation body 310 can be directly sleeved outside the instrument tube 100.

[0056] In some preferred embodiments, reference Figure 8 As shown, the inner wall of the mounting body 310 that cooperates with the movable member 320 to squeeze the instrument tube 100 is a pressing wall surface 312, and the pressing wall surface 312 is used to contact and cooperate with the instrument tube 100. In the process of the movable member 320 squeezing the instrument tube 100, the other side of the instrument tube 100 is limited by the pressing wall surface 312 and will not move. The movable member 320 only needs to move the shortest stroke to complete the squeezing of the instrument tube 100. At the same time, the overall position of the instrument tube 100 changes little, which will not affect the connection stability of the instrument tube 100 with the connecting valve 200, the suction valve 500 and other structures.

[0057] In some other preferred embodiments of the present application, refer to Figure 1 , Figure 3 and Figure 5 As shown, the connecting valve 200 is connected to a pressing device 600, and the pressing device 600 has a pressing channel and a pressing end 610 movably disposed in the pressing channel. The pressing channel is connected to the instrument tube 100, and the pressing end 610 can move toward the instrument tube 100 under the drive of an external force to reduce the space between the instrument tube 100 and the pressing end 610. In the case where the instrument tube 100 is blocked by stones and the movable part 320, by pushing the pressing end 610, the size of the space inside the instrument tube 100 can be adjusted, thereby adjusting the pressure inside the instrument tube 100.

[0058] The pressure inside the instrument tube 100 can be adjusted by pushing the pressing end 610 and pushing the movable member 320 to move. The two adjustment directions can be used in combination. In some embodiments, the adjustment range of the pressing end 610 can be set to be large, and the adjustment range of the movable member 320 can be set to be small. The pressure inside the instrument tube 100 is preliminarily adjusted by the pressing end 610, and then the pressure inside the instrument tube 100 is adjusted more accurately by the movable member 320. In other embodiments, the adjustment range of the pressing end 610 can also be set to be small, and the adjustment range of the movable member 320 can be large.

[0059] In some embodiments, the pressing device 600 can be used directly with the syringe 400. Figure 1 The pressing channel of the pressing device 600 is connected to the syringe 400 , and the liquid injected by the syringe 400 first enters the pressing channel, then passes through the channel of the connecting valve 200 , and then enters the interior of the instrument tube 100 .

[0060] The embodiment of the present application also provides an endoscope handle 10, including the endoscope unblocking structure provided by any of the above embodiments. Part of the instrument tube 100 is installed in the endoscope handle 10, the control component 300 is also located in the endoscope handle 10, and the connecting valve 200 is installed at the corresponding position of the endoscope handle 10.

[0061] An embodiment of the present application also provides an endoscope, comprising the endoscope handle 10 provided in any of the above embodiments.

[0062] The endoscope provided in the embodiments of the present application may be a nephroscope, or a suction endoscope, a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a nasal endoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An endoscope unblocking structure, characterized in that: It comprises an instrument tube (100), a connecting valve (200) and a control component (300); The communication valve (200) and the control assembly (300) are both installed on the instrument tube (100); the control assembly (300) is arranged near the proximal end of the instrument tube (100) relative to the communication valve (200); the communication valve (200) is in communication with the interior of the instrument tube (100) and is used to control whether the instrument tube (100) is in communication with the external environment; the control assembly (300) is installed outside the instrument tube (100); the control assembly (300) comprises a mounting body (310) and a movable part (320); the mounting body (310) is connected to the instrument tube (100); and the movable part (320) is movably arranged on the mounting body (310); The movable member (320) is configured to squeeze the instrument tube (100) under the action of an external force so as to divide the interior of the instrument tube (100) into two parts, and when the movable member (320) divides the interior of the instrument tube (100) into two parts, the movable member (320) can move toward the connecting valve (200) under the action of the external force; The mounting body (310) is provided with a movable track (311), the movable member (320) is guided and matched with the movable track (311), the movable track (311) comprises a first sub-track (311a) and a second sub-track (311b) connected to each other, the movable member (320) can move in the first sub-track (311a) to squeeze the instrument tube (100) or release the squeezing of the instrument tube (100), and the movable member (320) can move in the second sub-track (311b) to approach or move away from the connecting valve (200) when the inside of the instrument tube (100) is divided into two parts; The second sub-track (311b) is equipped with an elastic member (330), the elastic member (330) is located on a side of the movable member (320) away from the instrument tube (100), and the elastic member (330) is pressed tightly between the movable member (320) and the inner wall of the second sub-track (311b), and the movable member (320) can compress the elastic member (330) under the drive of the internal pressure of the instrument tube (100) to release the partition of the inside of the instrument tube (100).

2. The endoscope unblocking structure according to claim 1, characterized in that: The length of the elastic member (330) is greater than or equal to the length of the second sub-track (311b), and at least a portion of the elastic member (330) extends from the terminal end of the second sub-track (311b) to the starting end of the second sub-track (311b), the starting end of the second sub-track (311b) being the end of the second sub-track (311b) connected to the first sub-track (311a), and the terminal end of the second sub-track (311b) being the end of the second sub-track (311b) away from the first sub-track (311a).

3. The endoscope unblocking structure according to claim 1, characterized in that: The movable member (320) is provided with a connecting portion (321), the connecting portion (321) is located in the movable track (311), the connecting portion (321) is movable along the extension direction of the movable track (311), and the connecting portion (321) is a cylindrical structure, and the connecting portion (321) is rotatable in the movable track (311).

4. The endoscope unblocking structure according to claim 3, characterized in that: The movable part (320) comprises an extrusion part (322), the connection part (321) is installed on the extrusion part (322), the extrusion part (322) is used to contact the instrument tube (100), the extrusion part (322) is a cylindrical structure, and is coaxially arranged with the connection part (321), and at least part of the outer peripheral wall of the extrusion part (322) is exposed from the installation body (310) for the operator to move it.

5. The endoscope unblocking structure according to claim 4, characterized in that: The outer peripheral wall of the extrusion portion (322) is provided with a plurality of protrusions (323) distributed along the circumference of the extrusion portion (322).

6. The endoscope unblocking structure according to claim 1, characterized in that: The installation body (310) is sleeved outside the instrument tube (100), and the movable member (320) can squeeze the instrument tube (100) to the inner wall of the installation body (310).

7. The endoscope unblocking structure according to claim 1, characterized in that: The connecting valve (200) is connected to a pressing device (600), the pressing device (600) having a pressing channel and a pressing end (610) movably arranged in the pressing channel, the pressing channel being connected to the instrument tube (100), and the pressing end (610) being able to move toward the instrument tube (100) under the drive of an external force to reduce the space between the instrument tube (100) and the pressing end (610).

8. An endoscope handle, characterized in that: The invention comprises the endoscope unblocking structure as described in any one of claims 1 to 7.

9. An endoscope, characterized in that: An endoscope handle (10) comprising the one described in claim 8.

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