A tear duct balloon catheter with suction and irrigation functions

Abstract

The present application relates to the technical field of balloon catheter, especially a tear duct balloon catheter with suction and flushing functions, comprising a flushing unit, a catheter, a balloon arranged on the catheter, a flushing cavity arranged on the catheter, an inflation cavity arranged on the catheter, and a balance cavity arranged on the catheter; a closure adjusting unit, comprising a closure assembly arranged on the catheter, and an adjusting assembly arranged on the closure assembly. In the process of using the instrument, the passage of the lacrimal duct system into the eyeball is blocked to prevent pus from entering the eyeball and causing damage to the patient. Through the design of the double cavities, the cavity formed by the balloon and the human tissue is consistent with the external pressure, preventing the patient from being injured due to pressure problems. Through the design of the double cavities, the catheter can integrate suction and flushing, and the balloon can be adjusted according to different patients, so that the same size of the balloon can fit the tear duct passage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lacrimal passage balloon catheter, and particularly to a lacrimal passage balloon catheter with suction and flushing functions. BACKGROUND

[0002] Dacryocystitis is a common eye disease caused by obstruction or stenosis of the nasolacrimal duct, which is often seen in trachoma, lacrimal passage trauma, rhinitis, deviation of nasal septum, nasal polyps, hypertrophy of inferior turbinate and other conditions that block the nasolacrimal duct, so that the lacrimal fluid cannot be discharged and is retained in the lacrimal sac for a long time. Bacteria in the lacrimal fluid, such as pneumococcus and staphylococcus, breed and stimulate the lacrimal sac wall, causing chronic inflammation of the lacrimal sac mucosa and producing mucous or purulent secretions. Severe dacryocystitis can cause fever, and sometimes the pus (abscess) is stored in the lacrimal sac, which can break through the surface skin and form a fistula on the face. Acute dacryocystitis is characterized by pain, redness, and swelling around the lacrimal sac area, and symptoms such as redness, tearing, and pus discharge may occur around the eye. Gently pressing the lacrimal sac area, the pus can flow out from the lacrimal passage opening at the inner corner of the eye, and the eye will over-tear due to the affected drainage.

[0003] To remove the possible pus in the lacrimal passage, the current clinical practice is to repeatedly press the lacrimal sac or use physiological saline to flush the lacrimal sac. The method of repeatedly pressing the lacrimal sac to discharge pus is slow in effect, and both methods have certain risks. Since the pus contains a large amount of bacteria, the pus is discharged through the lacrimal canaliculus of the eyeball accessory in the above two methods, which is easy to enter the eyeball. If the patient's eyeball is accidentally injured, even a slight corneal abrasion, the bacteria hidden in the pus will take advantage of the situation and cause keratitis or corneal ulcer. Lighter cases leave scars on the cornea after healing, and heavier cases may cause corneal perforation or even blindness, causing irreparable damage. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above problems of the existing lacrimal passage balloon catheter with suction and flushing functions, such as slow effect of saline flushing of the lacrimal sac and poor adaptability of the traditional catheter, the present application is proposed.

[0006] Therefore, the purpose of the present application is to provide a lacrimal passage balloon catheter with suction and flushing functions.

[0007] To solve the above technical problems, the application provides the following technical scheme: a tear duct balloon catheter with suction and flushing functions, comprising a flushing unit, a closure adjusting unit, and a catheter.

[0008] As a preferred scheme of the tear duct balloon catheter with suction and flushing functions, the closure component comprises a knob component arranged on a guide rod, an insertion component arranged on the knob component, a locking component arranged on the knob component, and a flow component arranged on the knob component.

[0009] As a preferred scheme of the tear duct balloon catheter with suction and flushing functions, the knob component comprises a cylindrical block arranged on the catheter, a threaded knob arranged on the cylindrical block, and a piston arranged on the threaded knob.

[0010] As a preferred scheme of the tear duct balloon catheter with suction and flushing functions, the insertion component comprises a sealing rod arranged on the cylindrical block, a first sealing bag arranged on the sealing rod, an inflation rod arranged on the cylindrical block, and a second sealing bag arranged on the inflation rod.

[0011] As a preferred scheme of the tear duct balloon catheter with suction and flushing functions, the locking component comprises an arc-shaped block arranged on the cylindrical block, a through hole arranged on the arc-shaped block, a sealing block arranged on the arc-shaped block, a clamping rod arranged on the sealing block, and a clamping hole arranged on the catheter.

[0012] As a preferred scheme of the tear duct balloon catheter with suction and flushing functions, the flow component comprises a through groove arranged on the cylindrical block and a communication hole arranged on the inflation rod.

[0013] As a preferred scheme of the tear duct balloon catheter with suction and flushing functions, the adjusting component comprises an air outlet component arranged on the inflation rod, a closure component arranged on the air outlet component, and a limiting component arranged on the closure component.

[0014] As a preferred scheme of the tear duct balloon catheter with suction and flushing functions, the air outlet component comprises a fixing ring arranged on the inflation rod, a mounting plate arranged on the inflation rod, a contraction spring arranged on the mounting plate, and a sealing plate arranged on the contraction spring.

[0015] As a preferred embodiment of the lacrimal duct balloon catheter with suction and irrigation function described in this invention, the closure component includes a pull rod disposed on a sealing plate, a sealing ring disposed on the pull rod, and a sealing post disposed on the sealing ring.

[0016] As a preferred embodiment of the lacrimal duct balloon catheter with suction and irrigation function described in this invention, the limiting component includes a fixing plate disposed on the sealing ring, a telescopic rod disposed on the cylindrical block, a small spring disposed on the cylindrical block, a mating plate disposed on the telescopic rod, and a pressure balloon disposed on the cylindrical block.

[0017] The beneficial effects of this invention are as follows: By utilizing the characteristics of the compliant balloon, the passage from the lacrimal duct system to the eyeball is blocked during instrument use, preventing pus from entering the eyeball and causing damage to the patient. The dual-cavity design maintains consistent pressure between the balloon and the surrounding tissue, preventing injury due to pressure issues. The dual-cavity design also allows the catheter to integrate aspiration and irrigation. During the procedure, pus is first aspirated from the lesion site, followed by irrigation with saline solution to further clean the lesion. Furthermore, the balloon can be adjusted according to different patients, ensuring that balloons of the same size can conform to the lacrimal duct. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of the lacrimal duct balloon catheter with suction and irrigation function of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the lacrimal duct balloon catheter with suction and irrigation function of the present invention.

[0021] Figure 3 This is a schematic diagram of the sealing unit structure of the lacrimal duct balloon catheter with suction and irrigation function of the present invention.

[0022] Figure 4 This is a schematic diagram of the insert structure of the lacrimal duct balloon catheter with suction and irrigation function of the present invention.

[0023] Figure 5 This is a schematic diagram of the piston structure of the lacrimal duct balloon catheter with suction and irrigation function of the present invention.

[0024] Figure 6The schematic diagram of the arc-shaped block structure of the lacrimal balloon catheter with suction and irrigation functions according to the present application.

[0025] Figure 7 The schematic diagram of the inflation rod structure of the lacrimal balloon catheter with suction and irrigation functions according to the present application.

[0026] Figure 8 The schematic diagram of the limiting member structure of the lacrimal balloon catheter with suction and irrigation functions according to the present application.

[0027] Figure 9 The schematic diagram of the air outlet member structure of the lacrimal balloon catheter with suction and irrigation functions according to the present application. DETAILED DESCRIPTION

[0028] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0029] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details given herein. In other instances, well-known methods have not been described in detail in order to avoid unnecessarily obscuring the present application.

[0030] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0031] Thirdly, the present application is described in detail in combination with the schematic diagrams. In the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is locally enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in the actual manufacture.

[0032] Embodiment 1

[0033] Reference Figure 1 and Figure 2 A lacrimal balloon catheter with suction and irrigation functions includes a flushing unit 100 and a closed adjustment unit 200. The flushing unit 100 can suction out the pus from the lacrimal sac of a patient with dacryocystitis and perform irrigation.

[0034] Specifically, the flushing unit 100 includes a catheter 101, a balloon 102 mounted on the catheter 101, a flushing lumen 103 opened on the catheter 101, and an inflation lumen 104 penetrating to the distal end of the catheter 101, the inflation lumen 104 being opened on the catheter 101, a balance lumen 105 being provided on the catheter 101, and the catheter 101 having three passages inside, leading to the distal end, wherein the flushing lumen 103 is located at the distal end of the balloon 102 catheter 101, used for sucking pus or injecting physiological saline; the inflation lumen 104 is located at the proximal end of the balloon 102 catheter 101, and is connected with the balloon 102, used for inflating the balloon 102, when the balloon 102 is inflated, due to the characteristics of the compliant balloon 102, the balloon 102 and the obstruction of the nasolacrimal duct together form a cavity filled with pus in the nasolacrimal duct structure, and the remaining one passage is outside the distal end of the balloon 102, used for balancing the pressure inside the cavity; when physiological saline is used to flush the lacrimal sac, the passage can also make the physiological saline flow out of the lacrimal sac through the passage, achieving the purpose of flushing, the compliant balloon 102 is located at the middle of the whole catheter 101, after the balloon 102 catheter 101 is introduced into the lacrimal canaliculus, the position of the balloon 102 should be at the common canaliculus or the lacrimal sac, when the balloon 102 is expanded, the balloon 102 can completely block the passage of the lacrimal sac to the eyeball, preventing pus from entering the eyeball, the catheter 101 is marked with a development mark near the balloon 102, which can accurately position the balloon 102 catheter 101 during the operation, at the same time, the head end of the catheter 101 is treated, and the excessively sharp head end is easy to scratch the lacrimal duct system during the introduction process.

[0035] Operation process: when physiological saline is used to flush the lacrimal sac, the passage can also make the physiological saline flow out of the lacrimal sac through the passage, achieving the purpose of flushing, after the balloon 102 catheter 101 is introduced into the lacrimal canaliculus, the position of the balloon 102 should be at the common canaliculus or the lacrimal sac, when the balloon 102 is expanded, the balloon 102 can completely block the passage of the lacrimal sac to the eyeball, preventing pus from entering the eyeball.

[0036] Example 2

[0037] Reference Figures 3-6 The difference between this example and the first example is that the closed adjustment unit 200 includes a closed component 201 provided on the catheter 101, the closed component 201 is used to lock the flushing unit 100, avoiding the external environment from polluting the inside through the catheter 101, and an adjustment component 202 mounted on the closed component 201, the adjustment component 202 is used to finely adjust the size of the balloon 102, so that the balloon 102 can comfortably fit in the passage of the lacrimal sac to the eyeball, and the balloon 102 of the same specification is more suitable for different patients.

[0038] Specifically, the closing assembly 201 includes a knob 201a arranged on the guide rod, the knob 201a is rotatable to trigger the closing assembly 201 to be closed on the guide tube 101, an insertion piece 201b arranged on the knob 201a, the insertion piece 201b is matched with the channel on the guide tube 101, a locking piece 201c arranged on the knob 201a, the locking piece 201c is used to fix the closing assembly 201 on the guide tube 101, the guide tube 101 is disposable, and the fast assembly and fast disassembly are realized when in use and after use, a flow piece 201d arranged on the knob 201a, the flow piece 201d is used to make the knob 201a communicate with the locking piece 201c and the insertion piece 201b.

[0039] Further, the knob 201a includes a cylindrical block 201a-1 arranged on one side of the guide tube 101, the cylindrical block 201a-1 is directly matched with the diameter of the guide tube 101, a threaded knob 201a-2 arranged on the cylindrical block 201a-1, the threaded knob 201a-2 is rotatable to gradually enter the inside of the cylindrical block 201a-1, a piston 201a-3 arranged on the threaded knob 201a-2, the piston 201a-3 is connected with the threaded knob 201a-2 through a bearing, and when the threaded knob 201a-2 is gradually rotated to tightly enter the inside of the cylindrical block 201a-1, the piston 201a-3 also gradually extrudes the gas in the inside of the cylindrical block 201a-1.

[0040] Further, the insertion piece 201b includes two groups of sealing rods 201b-1 arranged on the cylindrical block 201a-1, the sealing rods 201b-1 are used to be inserted into the guide tube 101, a first sealing bag 201b-2 arranged on the sealing rods 201b-1, the first sealing bag 201b-2 is used to seal and fit the sealing rods 201b-1 with the guide tube 101, an inflation rod 201b-3 arranged on the cylindrical block 201a-1, the inflation rod 201b-3 is used to be inserted into the guide tube 101, a second sealing bag 201b-4 arranged on the inflation rod 201b-3, the second sealing bag 201b-4 is used to directly seal the inflation rod 201b-3 with the guide tube 101, when the piston 201a-3 extrudes the gas in the inside of the cylindrical block 201a-1, the gas enters the first sealing bag 201b-2 through the sealing rods 201b-1, and enters the second sealing bag 201b-4 through the inflation rod 201b-3, so that the inflation rod 201b-3 and the sealing rods 201b-1 are sealed with the guide tube 101.

[0041] Further, the locking member 201c includes an arc-shaped block 201c-1 arranged on the cylindrical block 201a-1, the inner diameter of the arc-shaped block 201c-1 is just fitted with the outer diameter of the catheter 101, when the cylindrical block 201a-1 is installed, the two groups of arc-shaped blocks 201c-1 are placed outside the catheter 101, the through hole 201c-2 installed on the arc-shaped block 201c-1, the through hole 201c-2 is in communication with the through slot 201d-1, so that the gas of the cylindrical block 201a-1 can be injected to one side of the sealing block 201c-3, the sealing block 201c-3 arranged on the arc-shaped block 201c-1, the clamping rod 201c-4 installed on the outer wall of the sealing block 201c-3, the clamping hole 201c-5 arranged on the catheter 101, when the piston 201a-3 moves, the gas also pushes the sealing block 201c-3 to move, the sealing block 201c-3 moves to drive the clamping rod 201c-4 to move, the clamping rod 201c-4 is embedded in the clamping hole 201c-5, so that the cylindrical block 201a-1 is fixed on the catheter 101.

[0042] Further, the flow member 201d includes a through slot 201d-1 arranged on the cylindrical block 201a-1, the through hole 201c-2 is in paired communication with the through slot 201d-1, the communication hole 201d-2 arranged on the inflation rod 201b-3, the communication hole 201d-2 makes the inflation rod 201b-3 in communication with the second sealing capsule 201b-4.

[0043] The remaining structure is the same as that of Example 1.

[0044] Operation process: when the catheter 101 is inserted into place, the cylindrical block 201a-1 is matched with the catheter 101, the sealing rod 201b-1 is used to insert into the catheter 101, the inflation rod 201b-3 is inserted into the inflation cavity 104 in the catheter 101, at this time the arc-shaped plate is located outside the catheter 101, at this time the threaded knob 201a-2 is rotated, the threaded knob 201a-2 rotates to drive the piston 201a-3 to move in the cylindrical block 201a-1, the piston 201a-3 extrudes the gas of the cylindrical block 201a-1, so that the gas fills in the first sealing capsule 201b-2 and the second sealing capsule 201b-4, the bulging of the sealing capsule makes the inflation rod 201b-3 sealed with the sealing rod 201b-1 and the catheter 101, and the gas also pushes the sealing block 201c-3 to move, the sealing block 201c-3 moves to drive the clamping rod 201c-4 to move, the clamping rod 201c-4 is embedded in the clamping hole 201c-5, so that the cylindrical block 201a-1 is locked on the catheter 101, at this time the catheter 101 can be sealed, so that the treatment area is separated from the outside world, avoiding the transmission of bacteria.

[0045] Example 3

[0046] Reference Figures 7-9The difference between this embodiment and the above embodiments is that the adjusting assembly 202 comprises an air outlet 202a arranged on the inflation rod 201b-3, the air outlet 202a enables the piston 201a-3 to continue to press the gas of the cylindrical block 201a-1 after the catheter 101 is sealed, and the gas enables the air outlet 202a to be opened, so that the cylindrical block 201a-1 is in communication with the balloon 102, a sealing member 202b arranged on the air outlet 202a, the sealing member 202b is used to block the first sealing balloon 201b-2, the second sealing balloon and the through hole 201c-2, so that the sealing is maintained, and a limiting member 202c arranged on the sealing member 202b, the limiting member 202c is used to maintain the communication between the cylindrical block 201a-1 and the balloon 102.

[0047] Specifically, the air outlet 202a comprises a fixed ring 202a-1 arranged on the inner wall of the inflation rod 201b-3, the inner diameter region of the fixed ring 202a-1 is hollow, a mounting plate 202a-2 mounted on the inflation rod 201b-3, a contraction spring 202a-3 mounted on the outer wall of the mounting plate 202a-2, a sealing plate 202a-4 mounted on one end of the contraction spring 202a-3, the contraction spring 202a-3 is connected with the sealing plate 202a-4, so that the sealing plate 202a-4 is tightly attached to the fixed ring 202a-1, when the first sealing balloon 201b-2 and the second sealing balloon 201b-4 are completely filled, and the clamping rod 201c-4 is embedded in the clamping hole 201c-5, there is no flow region of the gas pressed by the piston 201a-3, at this time, the air pressure gradually rises, so that the sealing plate 202a-4 is opened, so that the balloon 102 can be in communication with the cylindrical block 201a-1.

[0048] Further, the sealing member 202b comprises a pull rod 202b-1 arranged on the sealing plate 202a-4, the pull rod 202b-1 can be pulled when the sealing plate 202a-4 moves, a sealing ring 202b-2 arranged on the pull rod 202b-1, the outer ring of the sealing ring 202b-2 is tightly attached to the inner wall of the cylindrical block 201a-1, the pull rod 202b-1 moves to drive the sealing ring 202b-2 to move, a sealing column 202b-3 mounted on the sealing ring 202b-2, the movement of the sealing ring 202b-2 can drive the sealing column 202b-3 to move, so that the first sealing balloon 201b-2, the second sealing balloon 201b-4 and the through hole 201c-2 are blocked, at this time, if the rotary threaded knob 201a-2 is rotated, the sealing can also be maintained, so that the cylindrical block 201a-1 can freely adjust the size of the balloon 102 at this time, so that the balloon 102 can be adjusted in size according to different patients.

[0049] Further, the limiting member 202c comprises a fixed plate 202c-1 arranged on the sealing ring 202b-2, a plurality of right-angled triangular blocks arranged on one side of the fixed plate 202c-1, an extension rod 202c-2 arranged on the cylindrical block 201a-1, the extension rod 202c-2 enabling the cooperation plate 202c-4 to be moved, a small spring 202c-3 arranged on the cylindrical block 201a-1, the small spring 202c-3 enabling the cooperation plate 202c-4 to be kept in close contact with the fixed plate 202c-1, and the cooperation plate 202c-4 is also provided with a plurality of right-angled triangular blocks, so that the fixed plate 202c-1 can be moved on the cooperation plate 202c-4 in one direction and cannot be restored after being moved, so that the sealing plate 202a-4 cannot be restored after being moved, the cooperation plate 202c-4 is arranged on the extension rod 202c-2, a pressing capsule 202c-5 arranged on the cylindrical block 201a-1, the pressing capsule 202c-5 can press the cooperation plate 202c-4, so that the cooperation plate 202c-4 is separated from the fixed plate 202c-1, at this time, the sealing plate 202a-4 connected with the fixed plate 202c-1 can be restored.

[0050] The rest of the structure is the same as that of Example 2.

[0051] Operation process: the contraction spring 202a-3 is connected with the sealing plate 202a-4, so that the sealing plate 202a-4 is closely attached to the fixed ring 202a-1, when the first sealing capsule 201b-2 and the second sealing capsule 201b-4 are completely filled, and the clamping rod 201c-4 is embedded in the clamping hole 201c-5, the gas extruded by the piston 201a-3 has no flow area, at this time, the air pressure gradually rises, so that the sealing plate 202a-4 is opened, so that the balloon 102 can be in communication with the cylindrical block 201a-1, when the sealing plate 202a-4 is opened, the pull rod 202b-1 is moved, the movement of the pull rod 202b-1 drives the sealing ring 202b-2 to move, the movement of the sealing ring 202b-2 drives the sealing column 202b-3 to move, so that the first sealing capsule 201b-2, the second sealing capsule 201b-4 and the through hole 201c-2 are blocked, at this time, if the rotary threaded knob 201a-2 is rotated, the sealing can also be maintained, so that the cylindrical block 201a-1 can freely adjust the size of the balloon 102 at this time, so that the balloon 102 can be adjusted according to different patients.

[0052] It should be noted that the above examples are only used to illustrate the technical solutions of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered by the claims of the present application.

Claims

1. A lacrimal duct balloon catheter with aspiration and irrigation function, characterized in that: include, The flushing unit (100) includes a catheter (101), a balloon (102) disposed on the catheter (101), a flushing cavity (103) disposed on the catheter (101), an inflation cavity (104) disposed on the catheter (101), and a balancing cavity (105) disposed on the catheter (101). The closure adjustment unit (200) includes a closure component (201) disposed on the conduit (101) and an adjustment component (202) disposed on the closure component (201). The closing assembly (201) includes a knob (201a) disposed on the guide rod, an insert (201b) disposed on the knob (201a), a locking member (201c) disposed on the knob (201a), and a flow member (201d) disposed on the knob (201a). The knob (201a) includes a cylindrical block (201a-1) disposed on the conduit (101), a threaded knob (201a-2) disposed on the cylindrical block (201a-1), and a piston (201a-3) disposed on the threaded knob (201a-2). The insert (201b) includes a sealing rod (201b-1) disposed on the cylindrical block (201a-1), a first sealing bladder (201b-2) disposed on the sealing rod (201b-1), an inflation rod (201b-3) disposed on the cylindrical block (201a-1), and a second sealing bladder (201b-4) disposed on the inflation rod (201b-3). The adjustment assembly (202) includes an air outlet (202a) disposed on the air inflator (201b-3), a closure (202b) disposed on the air outlet (202a), and a restraint (202c) disposed on the closure (202b). The air outlet component (202a) includes a retaining ring (202a-1) disposed on the inflation rod (201b-3), a mounting plate (202a-2) disposed on the inflation rod (201b-3), a compression spring (202a-3) disposed on the mounting plate (202a-2), and a sealing plate (202a-4) disposed on the compression spring (202a-3). The closure (202b) includes a pull rod (202b-1) disposed on the sealing plate (202a-4), a sealing ring (202b-2) disposed on the pull rod (202b-1), and a sealing post (202b-3) disposed on the sealing ring (202b-2). The limiting component (202c) includes a fixing plate (202c-1) disposed on the sealing ring (202b-2), a telescopic rod (202c-2) disposed on the cylindrical block (201a-1), a small spring (202c-3) disposed on the cylindrical block (201a-1), a mating plate (202c-4) disposed on the telescopic rod (202c-2), and a pressing bladder (202c-5) disposed on the cylindrical block (201a-1).

2. The lacrimal duct balloon catheter with suction and irrigation function as described in claim 1, characterized in that: The locking component (201c) includes an arc-shaped block (201c-1) disposed on the cylindrical block (201a-1), a through hole (201c-2) disposed on the arc-shaped block (201c-1), a sealing block (201c-3) disposed on the arc-shaped block (201c-1), a locking rod (201c-4) disposed on the sealing block (201c-3), and a locking hole (201c-5) disposed on the guide tube (101).

3. The lacrimal duct balloon catheter with aspiration and irrigation function as described in claim 2, characterized in that: The circulation element (201d) includes a through groove (201d-1) provided on the cylindrical block (201a-1) and a connecting hole (201d-2) provided on the inflation rod (201b-3).

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