Ultrafine-aperture laser resection mirror, combined suite and use method of combined suite

Abstract

The invention relates to a superfine-aperture laser resection mirror, a combined suite and a using method of the combined suite. The superfine-aperture laser resection mirror comprises a rod body, an electronic flexible mirror, a laser optical fiber pipeline, an operator and a connector, two through holes are formed in the rod body in the length direction of the rod body, one through hole is used for allowing an electronic flexible lens to penetrate through, and the other through hole is used for allowing a laser optical fiber pipeline to penetrate through. According to the ultra-thin-caliber urethral resection mirror combination suite, the whole design thought is changed, a brand-new laser resection mirror structure capable of keeping the original function of the resection mirror unchanged and reducing the caliber is provided, an outer sheath is innovatively removed, an optical fiber channel is combined with a water injection function, a fistulization tube and related components are designed in a matched mode, and the laser resection mirror structure is simple in structure and convenient to use. Therefore, a stable water inlet and outlet system is constructed, the diameter of the resection mirror is greatly reduced, meanwhile, the rod body serves as the outermost layer of the whole new resection mirror structure, a traditional hard eyepiece is replaced with an electronic soft mirror, and finally the diameter of the resection mirror stretching into the urethra can reach Fr6-Fr18.

Description

Technical Field

[0001] The present invention relates to the technical field of laser ablation mirrors, and in particular to an ultra-fine-aperture laser ablation mirror, a combination kit and a use method thereof. Background Art

[0002] Prostate hyperplasia surgery is mainly performed through a transurethral prostate laser resection scope. The standard caliber transurethral prostate laser resection scope on the market is Fr26, which is not completely suitable for the thin urethra of some Chinese people. The components of the urethral prostate laser resection scope generally include inner sheath, outer sheath, endoscope, manipulator, obturator, etc. As of now, there are Fr24 and even Fr20 small-caliber prostate laser resection scopes on the market. However, there are still some unresolved problems: ① The surgical insertion problem of some patients with small urethra, urethral stenosis or pediatric urethra cannot be solved; ② The main structure of the traditional resection scope has not changed, but the purpose of reducing the caliber is achieved by simply reducing the accuracy and thickness of the sheath. As the caliber becomes thinner, the caliber of the inner and outer sheaths and the matching eyepieces of the laser resection scope must be reduced accordingly, resulting in a decrease in the overall support and strength of the laser resection scope, which is easy to deform or even break, and then leads to imbalance of the water inlet and outlet of the laser resection scope, hindering the heat dissipation of the laser and the clarity of the surgical field, affecting the safety of the operation. Summary of the invention

[0003] Based on this, it is necessary to provide an ultra-fine-caliber laser resection scope, a combination kit and a method of using the same in order to address the problem that the caliber of the existing urethral prostate laser resection scope is difficult to further reduce.

[0004] An ultra-fine-caliber laser resection mirror, comprising a rod body, an electronic soft mirror, a laser optical fiber pipeline, a manipulator and a joint;

[0005] The rod body is provided with two through holes along its length direction, one of which is used for passing the electronic soft mirror, and the other is used for passing the laser optical fiber pipeline;

[0006] The operator is arranged at one end of the rod body and is used to control the extension and retraction of the laser optical fiber pipe in the through hole;

[0007] The laser optical fiber pipeline is used for passing the optical fiber through, and is also used for injecting water when in use;

[0008] The connector is arranged at one end of the laser optical fiber pipeline close to the operator; the connector includes two inlets both connected to the laser optical fiber pipeline; one of the inlets is used to insert the optical fiber into the laser optical fiber pipeline, and the other inlet is used to inject water into the laser optical fiber pipeline.

[0009] As a preferred example, the electronic soft mirror includes a display screen; the display screen is detachably connected to the operator, and is used to display the images captured by the electronic soft mirror.

[0010] As a preferred example, the diameter of one of the through holes is the same as the diameter of the electronic soft mirror, and the diameter of the other through hole is the same as the diameter of the laser optical fiber pipe.

[0011] As a preferred example, the joint includes a tee, a hose and a locker; one end of the tee is connected to the laser optical fiber pipeline; the other end of the tee is used to connect to an external water source; the remaining end of the tee is connected to the hose; the hose is used to pass the optical fiber into the laser optical fiber pipeline; the locker is arranged on the tee, and is used to apply a force to the hose in the direction of the optical fiber, so that a seal is set between the hose and the optical fiber.

[0012] As a preferred example, the locking device comprises:

[0013] An insert is sleeved on the hose; one end of the insert is provided with a slope;

[0014] Two threaded rings; one of the rings is fixedly sleeved on the tee, and the other ring is sleeved on the insert, and its inner wall abuts against the inclined surface on the insert; when the two rings approach or move away from each other, the rings squeeze the inclined surface to make the insert deform toward the hose, so that the hose and the optical fiber are sealed.

[0015] As a preferred example, the hose and the laser optical fiber pipeline are coaxially arranged; and / or the three-way pipe is provided with a valve for controlling the on-off of an external water source; and / or the three-way pipe and the laser optical fiber pipeline are detachably connected.

[0016] As a preferred example, water is injected into the laser optical fiber pipeline by pressurized water injection.

[0017] An ultra-fine-caliber laser resection mirror combination kit comprises the ultra-fine-caliber laser resection mirror as described above and a fistula tube; the fistula tube is used to discharge water injected through the laser optical fiber pipeline from the human body.

[0018] As a preferred example, one end of the fistula tube is provided as a closed portion, and the closed portion can be elastically changed to change the diameter; a plurality of filter holes are provided on the closed portion.

[0019] A method for using an ultra-fine-aperture laser resection mirror assembly kit, which uses the ultra-fine-aperture laser resection mirror assembly kit as described above; the method for using comprises the following steps:

[0020] External flushing water enters the human body through the joint and laser fiber optic pipe; the flushing water inside the human body is discharged from the human body through the fistula tube, thus forming a dynamic circulation of flushing water.

[0021] The beneficial effects of the present invention are:

[0022] 1. The ultra-fine-caliber urethral resection mirror combination kit proposed in the present invention proposes a new laser resection mirror structure that can maintain the original function of the resection mirror and reduce the caliber through the change of the overall design concept. The outer sheath is innovatively removed, the optical fiber channel is combined with the water injection function, and the fistula tube and related components are designed to build a stable water inlet and outlet system, greatly reducing the caliber of the resection mirror. At the same time, the rod body is used as the outermost layer of the entire new resection mirror structure, and an electronic soft mirror is used instead of the traditional hard eyepiece, which can further reduce the caliber of the resection mirror, and ultimately the caliber of the resection mirror inserted into the urethra can reach Fr6~Fr18, thereby achieving the required ultra-fine caliber.

[0023] 2. The laser resection mirror proposed in the present invention can be composed of components that are already available on the market and have sufficient supporting force and strength through the improvement of a completely new structure, rather than reducing the caliber by reducing the thickness and diameter of the components while keeping the existing structure of the laser resection mirror unchanged. As a result, while reducing the diameter of the laser resection mirror, the mirror body still has sufficient supporting force and strength and is not prone to deformation and breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a partial structural schematic diagram of the front end of the rod body in the embodiment;

[0025] Figure 2 is a schematic cross-sectional view of the rod body in radial direction;

[0026] Figure 3 It is a structural schematic diagram of the connection between the manipulator, the inner sheath and the connector;

[0027] Figure 4 It is a structural schematic diagram of the locking device;

[0028] Figure 5 It is a schematic diagram of the structure of the fistula tube with the elastic sleeve in a stretched shape;

[0029] Figure 6 Schematic diagram of the structure of the fistula tube in its initial shape.

[0030] In the figure: rod body 1, electronic soft mirror 2, laser optical fiber pipeline 3, manipulator 4, joint 5, tee pipe 6, hose 7, insert 8, collar 9, hard pipe 10, elastic sleeve 11, display screen 12. DETAILED DESCRIPTION

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

[0032] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 should not be understood as a limitation on the present application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0035] This embodiment provides an ultra-fine-caliber laser resection scope, the main body of which only includes a rod body 1, an electronic soft scope 2, a laser fiber tube 3, an operator 4, and a connector 5. Obviously, compared with a traditional resection scope, the laser resection scope first removes the outer sheath design, which can reduce the resection scope caliber by at least 2 Fr units. Figure 1 and Figure 2 As shown, the rod body 1 is provided with two through holes along its length. In order to ensure that the rod body 1 has sufficient support force and strength, the diameter of one of the through holes is the same as the diameter of the electronic soft mirror 2, which is used to penetrate the electronic soft mirror 2; the diameter of the other through hole is the same as the diameter of the laser optical fiber pipe 3, which is used to penetrate the laser optical fiber pipe 3. The rod body 1 is equivalent to the inner sheath in the traditional laser resection mirror. This through hole arrangement method makes the other parts of the rod body 1 except the through holes still in a solid state, which can significantly enhance the support force and strength of the rod body 1 compared to the traditional inner sheath using a tube body. In addition, the rod body 1 can be made of stainless steel, titanium alloy and other materials, which further improves its own strength while having good bio-tissue compatibility.

[0036] The electronic soft mirror 2 can directly adopt the existing electronic soft mirror 2, which generally includes an insertion part, a front end part, a bending part, an operating part, etc. In order to observe the complex environment inside the human body, the bending part of the existing electronic soft mirror 2 can manipulate its bending. The electronic soft mirror 2 used in the present design can be further optimized. Since there is no need for bending-related structural design, the electronic soft mirror 2 used in the present design can further remove some irrelevant structures, such as the bending function. Only the necessary shooting and lighting functions are retained, so that the diameter of the electronic soft mirror 2 can be further reduced, and then the overall caliber of the laser resection mirror can be reduced. In one embodiment, since the electronic soft mirror 2 does not require functions such as bending, the operating part of the electronic soft mirror 2 is directly integrated on a small display screen 12. Please refer to Figure 3 , the operator 4 is provided with a magnetic base detachably connected to the display screen 12. The display screen 12 can be directly adsorbed on the magnetic base during the operation to display the image captured by the electronic soft mirror 2, so that the operator can easily and intuitively observe the situation at the front end of the laser resection mirror, reducing the complexity of the operation, facilitating the operator to perform the operation, and improving the efficiency of the operation, which is conducive to day surgery and even outpatient minor surgery. In another embodiment, the rear end of the electronic soft mirror 2 inserted in the rod body 1 is connected to a data cable to transmit the image signal captured by the electronic soft mirror 2 to the display device at the rear end through the data cable. The display device specially used to connect the electronic soft mirror 2 is large in size and is not suitable for installation on the operator 4, but the image size it displays is large and clearer, which is conducive to seeing the image captured by the electronic soft mirror 2.

[0037] The manipulator 4 is disposed at one end of the rod body 1, that is, the manipulator 4 is located at the end of the rod body 1 outside the human body during the operation, and is used to control the extension and retraction of the laser optical fiber tube 3 in the through hole. Figure 3As shown, the operator 4 includes a connecting tube, a handle, a slider, a reset assembly and other parts. The length of the traditional connecting tube is generally equivalent to the length of the laser fiber conduit 3, and it needs to extend into the inner sheath together with the laser fiber conduit 3. Its function is to limit the position of the laser fiber conduit 3 through a limiting structure to prevent the laser fiber conduit 3 from shifting during the telescopic process. Due to the special design of the rod body 1 in this design, the connecting tube can be designed to be very short, and a small part of it is inserted into one of the through holes, so that the operator 4 can be connected to the rod body 1. The part of the rod body 1 where the connecting tube is inserted will inevitably be thickened, but the thickened part will not extend into the human body. The laser fiber conduit 3 is inserted into another through hole, and the through hole is used to limit the laser fiber conduit 3, so that a very long connecting tube is not required. Therefore, compared with the traditional laser resection mirror, the increase in caliber caused by the thickness of the connecting tube can be reduced. The electronic soft mirror 2 enters the through hole by passing through the connecting tube. The slider is slidably arranged on the outside of the connecting tube. The handle is connected to the slider to drive the slider to slide on the connecting tube. At the same time, the slider is fixed to the laser fiber conduit 3. The reset assembly generally includes a spring. Through the elasticity of the spring and the operator pressing the handle, the slider can move back and forth, thereby driving the laser fiber optic pipe 3 to expand and contract in the through hole to achieve laser resection of the lesion. In the prior art, the function of the laser fiber optic pipe 3 is only to pass the optical fiber. One end of the optical fiber is connected to the light source, and the other end extends to the end of the laser fiber optic pipe 3 located in the human body, and the laser energy is transmitted through the optical fiber. The circulating water system is a must for the laser resection mirror, and it is also an important factor that limits the caliber of the resection mirror. In the existing laser resection mirror design, water is injected through the internal space of the inner sheath, and water is discharged through the space between the inner sheath and the outer sheath. It is a very mature solution and has been in use. This solution creatively combines the optical fiber channel with the water injection function to replace the water injection channel of the traditional resection mirror. The water injection through the optical fiber channel and the water return through the fistula tube form a complete water cycle, which breaks through the thinking inertia of traditional resectoscope design (that is, simply reducing the caliber by reducing the accuracy and sheath thickness) and can reduce the caliber of the laser resectoscope (through the above series of designs, the caliber of the laser resectoscope can even reach Fr6~Fr18), while not reducing the original function, so that the resectoscope as a whole still has strong support and strength.

[0038] Specifically, the structure design of the fiber channel incorporating the water injection function in this embodiment is as follows: Figure 4As shown. A specially designed joint 5 is arranged at one end of the laser fiber pipeline 3 close to the operator 4. The joint 5 includes a tee 6, a hose 7 and a locker. One end of the tee 6 is connected to the laser fiber pipeline 3. In this embodiment, the tee 6 is detachably connected to the end of the laser fiber pipeline 3, generally by a threaded connection, so that the disassembly and installation can be quickly realized. The other end of the tee 6 is used to connect to an external water source. A valve can be installed on the end connected to the external water source to control the on and off of the water inlet. It is worth mentioning that in order to ensure sufficient water inflow, the external water source can be set as a pressurized water source. The pressurized water is poured into the human body through the joint 5 and the laser fiber pipeline 3, thereby ensuring sufficient water inflow. The remaining end of the tee 6 is connected to the hose 7. The optical fiber is generally inserted into the laser fiber pipeline 3 before the operation. In order to ensure the smooth installation of the optical fiber, the hose 7 is preferably installed in a direction coaxial with the laser fiber pipeline 3. In order to prevent the water injected into the laser fiber pipeline 3 from flowing out from the rear end of the laser fiber pipeline 3 (that is, the end of the laser fiber pipeline 3 close to the operator 4). The locker needs to be used in conjunction with the hose 7. In this embodiment, the locker includes an insert 8 and two threaded collars 9. The insert 8 is annular and is sleeved on the hose 7, and a slope is provided at one end of the outer wall of the insert 8. The insert 8 itself has a certain elasticity, and a notch is provided on the annular insert 8, so that the insert 8 can be deformed more easily. One of the collars 9 is fixedly sleeved on the tee 6, and the other collar 9 is sleeved on the insert 8, and its inner wall is against the slope on the insert 8. When the collar 9 sleeved on the insert 8 is rotated, the two collars 9 move away from or close to each other due to the thread action, so that the inner wall of the collar 9 squeezes the slope on the insert 8 and then the insert 8 is deformed in the direction of the hose 7. The insert 8 is deformed and squeezed to the hose 7, so that the hose 7 and the periphery of the optical fiber are sealed, thereby preventing the trouble of water flowing out from the rear side of the laser optical fiber pipeline 3. In addition to solving the problem of water flowing on the rear side of the laser optical fiber pipeline 3, this design can also play a role in fixing the optical fiber in the laser optical fiber pipeline 3. Specifically, the manipulator 4 is used to reciprocate and drive the laser fiber conduit 3 to expand and contract in the inner sheath, and water needs to be injected into the laser fiber conduit 3 in this solution. In this way, during the repeated movement of the laser fiber conduit 3, the optical fiber inside it may easily slip relative to the laser fiber conduit 3, affecting the laser removal at the front end of the laser fiber conduit 3. The locking device designed in this embodiment can lock or clamp the optical fiber at the end of the laser fiber conduit 3 through the hose 7, thereby preventing the optical fiber from slipping relative to the laser fiber conduit 3.

[0039] In another embodiment, compared with the above embodiment, the joint 5 can be directly set as a tee 6. One end of the tee 6 is connected to the laser optical fiber pipeline 3, the other end is used to connect to the external water source, and the remaining end is used to insert the optical fiber into the laser optical fiber pipeline 3. This design can reduce the structural design of the rear end of the laser optical fiber pipeline 3 and facilitate operation. As for the water leakage problem at the rear end of the laser optical fiber pipeline 3, sealing methods such as sealing tape can be used to wrap the optical fiber and the laser optical fiber pipeline 3, and sealing fillers can be filled between the optical fiber and the laser optical fiber pipeline 3, which are not listed here one by one.

[0040] In another embodiment, an ultra-fine-caliber laser resectoscope combination kit is also proposed, which includes the ultra-fine-caliber laser resectoscope and a fistula tube as described above. The fistula tube is used to discharge water injected through the laser fiber optic pipe 3 from the human body. The function of the traditional prostate resectoscope to drain water using the water outlet channel between the inner and outer sheaths is realized by the fistula tube in this embodiment, which is a prerequisite for the implementation of the above-mentioned laser resectoscope. The caliber of the fistula tube can be freely designed to meet the water outlet requirements in any transurethral surgery. The fistula tube can adopt an existing fistula tube, or the fistula tube in this embodiment. The fistula tube in this embodiment is used in conjunction with a corresponding top core rod. One end of the fistula tube can be elastically changed. The top core rod is used to extend into the fistula tube and change the shape of the elastic end of the fistula tube. Specifically, as Figure 5 As shown, the fistula tube includes a hard tube 10 and an elastic sleeve 11. One end of the elastic sleeve 11 is fixedly connected to the hard tube 10, and the other end is a closed part. The elastic sleeve 11 is also provided with a plurality of filter holes. The shape of the elastic sleeve 11 can be elastically changed. That is, the elastic sleeve 11 is deformed under the action of external force. The top core rod can be inserted into the fistula tube, and the top core rod is inserted into the fistula tube to contact the elastic sleeve 11, and the elastic sleeve 11 is stretched to deform it into a cone shape, thereby facilitating the insertion of the fistula tube into the puncture hole in the patient's abdomen. When the elastic sleeve 11 is extended into the patient's body, the top core rod can be pulled out. When the external force is removed, the elastic sleeve 11 can return to its original shape and size. The initial shape of the elastic sleeve 11 before the elastic change can be set to a flat sac shape, such as Figure 6 As shown. When in use, the elastic sleeve 11 is located in the patient's bladder. The diameter of the elastic sleeve 11 that has returned to its original shape is larger than the diameter of the puncture hole, thereby preventing the fistula tube from falling off from the puncture hole in the patient's abdomen. At the same time, the end of the fistula tube can be connected to an external pipe to drain water. The main part of the top core rod is a straight rod, which requires a certain strength to stretch the elastic sleeve 11. At the same time, the end of the top core rod is blunted to prevent it from piercing the elastic sleeve 11.

[0041] In summary, the traditional prostate laser resection mirror only reduces the total caliber by reducing the thickness and diameter of the components. The reduction of its total caliber is limited, and it is easy to cause the overall support force of the resection mirror to decrease, and it is easy to deform or even break, which has limitations. The ultra-fine caliber urethral resection mirror and its combination kit proposed in the present invention change the overall design concept and propose a new laser resection mirror structure that can maintain the original function of the resection mirror and reduce the caliber. The outer sheath is innovatively removed, and a fistula component is designed to build a stable water inlet and outlet system. At the same time, the inner sheath is used as the outermost layer of the entire new laser resection mirror structure, and an electronic soft mirror 2 is used to replace the traditional hard eyepiece to further reduce the caliber of the resection mirror. The caliber of the resection mirror extending into the urethra can reach Fr6~Fr18, thereby achieving the required ultra-fine caliber. The laser resection mirror proposed in the present invention can be composed of components that are already available on the market and have sufficient supporting force and strength through the improvement of a completely new structure, rather than reducing the caliber by reducing the thickness and diameter of the components while keeping the existing structure of the laser resection mirror unchanged. As a result, while reducing the caliber of the laser resection mirror, the mirror body still has sufficient supporting force and strength and is not prone to deformation and breakage.

[0042] In another embodiment, a method for using an ultra-fine-aperture laser resection mirror assembly kit is also provided, which uses the ultra-fine-aperture laser resection mirror assembly kit as described above. The method for using includes the following steps:

[0043] External flushing water enters the human body through the joint 5 and the laser optical fiber pipe 3; the flushing water in the human body is discharged from the human body through the fistula tube, thereby forming a dynamic circulation of flushing water.

[0044] 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.

[0045] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An ultra-fine aperture laser resection mirror, characterized in that: It comprises a rod body (1), an electronic soft mirror (2), a laser optical fiber pipeline (3), a manipulator (4) and a joint (5); The rod body (1) is provided with two through holes along its length direction, one of the through holes is used for passing the electronic soft mirror (2), and the other through hole is used for passing the laser optical fiber pipeline (3); The operator (4) is arranged at one end of the rod body (1) and is used to control the extension and retraction of the laser optical fiber pipe (3) in the through hole; The laser optical fiber pipeline (3) is used for inserting the optical fiber and is also used for injecting water when in use; The connector (5) is arranged at one end of the laser optical fiber pipeline (3) close to the operator (4); the connector (5) comprises two inlets both connected to the laser optical fiber pipeline (3); one of the inlets is used for inserting an optical fiber into the laser optical fiber pipeline (3), and the other inlet is used for injecting water into the laser optical fiber pipeline (3).

2. The ultra-fine aperture laser resection mirror according to claim 1, characterized in that: The electronic soft mirror (2) comprises a display screen (12); the display screen (12) is detachably connected to the operator (4) and is used to display images captured by the electronic soft mirror (2).

3. The ultra-fine aperture laser resection mirror according to claim 1, characterized in that: The diameter of one of the through holes is the same as the diameter of the electronic soft mirror (2), and the diameter of the other through hole is the same as the diameter of the laser optical fiber pipe (3).

4. The ultra-fine aperture laser resection mirror according to claim 1, characterized in that: The joint (5) comprises a tee (6), a hose (7) and a locking device; one end of the tee (6) is connected to the laser optical fiber pipeline (3); the other end of the tee (6) is used to connect to an external water source; the remaining end of the tee (6) is connected to the hose (7); the hose (7) is used to insert an optical fiber into the laser optical fiber pipeline (3); the locking device is arranged on the tee (6) and is used to apply a force to the hose (7) in the direction of the optical fiber, so that a sealing arrangement is formed between the hose (7) and the optical fiber.

5. The ultra-fine aperture laser resection mirror according to claim 4, characterized in that: The locking device comprises: An insert (8) is sleeved on the hose (7); one end of the insert (8) is provided with a slope; Two threadedly connected ferrules (9); one of the ferrules (9) is fixedly sleeved on the tee (6), and the other ferrule (9) is sleeved on the insert (8), and its inner wall abuts against the inclined surface on the insert (8); when the two ferrules (9) approach or move away from each other, the ferrules (9) squeeze the inclined surface so that the insert (8) deforms in the direction of the hose (7), so that the hose (7) and the optical fiber are sealed.

6. The ultra-fine aperture laser resection mirror according to claim 4, characterized in that: The hose (7) and the laser optical fiber pipeline (3) are coaxially arranged; and / or, a valve for controlling the on / off of an external water source is arranged on the three-way pipe (6); and / or, the three-way pipe (6) and the laser optical fiber pipeline (3) are detachably connected.

7. The ultra-fine aperture laser resection mirror according to claim 1, characterized in that: The water is injected into the laser optical fiber pipeline (3) by means of pressurized water injection.

8. An ultra-fine aperture laser resection mirror assembly kit, characterized in that: It comprises an ultra-fine-caliber laser resection mirror as described in any one of claims 1 to 7 and a fistula tube; the fistula tube is used to discharge water injected through the laser optical fiber pipeline (3) from the human body.

9. The ultra-fine-aperture laser resection mirror assembly kit according to claim 8, characterized in that: One end of the fistula tube is arranged as a closing part, and the closing part can be elastically changed to change the diameter; a plurality of filter holes are arranged on the closing part.

10. A method for using an ultra-fine-aperture laser resection mirror assembly kit, characterized in that: It uses the ultra-fine-aperture laser resection mirror assembly kit as described in claim 8 or 9; the method of use comprises the following steps: External flushing water enters the human body through the joint (5) and the laser optical fiber pipeline (3); the flushing water in the human body is discharged from the human body through the fistula tube, thereby forming a dynamic circulation of flushing water.

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