Disposable lacrimal passage drainage tube

By designing a U-shaped tube body, a T-shaped flushing port and a tear duct drainage tube made of TPU material, the problems of insufficient flushing and inconvenient insertion in the existing technology are solved, and uniform flushing in the tear duct and patient comfort are achieved.

CN223404015UActive Publication Date: 2025-10-03YUNNAN PROVINCIAL HOSPITAL OF TRADITIONAL CHINESE MEDICINE
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421910326.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-08
Publication Date
2025-10-03
Estimated Expiration
2034-08-08

AI Technical Summary

Technical Problem

The flushing port of the existing tear duct drainage tube is fixed in position, resulting in insufficient flushing, and the tube body is difficult to enter the tear duct, which is inconvenient to use.

Method used

A U-shaped tube body is designed with drainage ports at both ends and flushing ports evenly arranged on the outer wall. The flushing port adopts a T-shaped structure, with liquid discharged at the top and liquid inlet at the bottom. The tube body is made of TPU material and is equipped with a guide rod and a flusher. The flushing needle is a two-section structure, and the piston rod has a push plate.

Benefits of technology

It achieves full flushing of different positions in the lacrimal duct, improves flushing and treatment effects, reduces patient discomfort, and enhances the smoothness and comfort of insertion.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223404015U_ABST
    Figure CN223404015U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of drainage equipment, in particular to a disposable lacrimal passage drainage tube which comprises a tube body, a flusher and a guide rod, the tube body is of a U-shaped structure, drainage openings are formed in the ends of the two ends of the tube body, a plurality of flushing openings are formed in the outer walls of the two ends of the tube body, and the flushing openings are arranged at equal intervals from top to bottom. A flushing insertion hole is formed in the middle section of the pipe body close to the flushing opening. According to the disposable lacrimal passage drainage tube, the multiple flushing openings are formed in the outer wall of the other end of the tube body and are arranged at equal intervals from top to bottom, and the aim of fully flushing different positions in a lacrimal passage is achieved. By means of the design, it is ensured that a wider area can be covered in the flushing process, and therefore the flushing effect and the treatment effect are improved. The flushing opening is of a special T-shaped structural design, liquid discharging ends are arranged on the two sides of the top, and a liquid inlet end is arranged at the bottom. By means of the structure, the structural stability of the flushing opening is enhanced, and even distribution of flushing fluid in the lacrimal passage is facilitated.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of drainage equipment, in particular to a disposable lacrimal duct drainage tube. Background Art

[0002] A tear duct drain is a medical device used to treat blocked tear ducts. The tear duct is the passageway between the eyes and the nasal cavity. Its primary function is to drain tears from the eyes to the nasal cavity. When tears cannot drain properly, the tear duct becomes blocked, leading to a series of symptoms such as eye inflammation, tearing, and blurred vision. A tear duct drain is designed to help relieve these discomforts by facilitating tear drainage.

[0003] When the existing tear duct drainage tube is used, the flushing port is fixed in position, so it can only flush a certain area, resulting in insufficient flushing. In addition, the flushing tube body is not convenient to enter the tear duct during use, and it is inconvenient to insert the tube body. Utility Model Content

[0004] The purpose of the present utility model is to provide a disposable lacrimal drainage tube to solve the problem in the above-mentioned background technology that the existing lacrimal drainage tube can only be flushed at a certain place during use due to the fixed position of the flushing port, resulting in insufficient flushing, and the flushing tube body is not convenient to enter the lacrimal duct during use, making it inconvenient to insert the tube body.

[0005] To achieve the above-mentioned purpose, the utility model provides a disposable lacrimal drainage tube, comprising a tube body, an irrigator and a guide rod. The tube body is a U-shaped structure, with drainage ports provided at the ends at both ends. The outer walls at both ends of the tube body are provided with a plurality of rinsing ports, which are arranged at equal intervals from top to bottom. A rinsing jack is provided in the middle section of the tube body near the rinsing port. The irrigator comprises a rinsing tube, a piston rod is provided inside the rinsing tube, a liquid outlet pipe is installed at one end of the piston rod, and a rinsing needle is installed at the outer end of the liquid outlet pipe.

[0006] Preferably, a handle is installed at one end of the guide rod, and a plurality of anti-slip grooves are provided on the outer wall of the handle.

[0007] Preferably, the flushing port includes a flushing channel, and the flushing channel is a T-shaped structure. Liquid discharge ends are provided on both sides of the top of the flushing channel, and a liquid inlet end is provided at the bottom of the flushing channel.

[0008] Preferably, a pad is installed on the top outer wall of the flushing channel, and the outer wall of the pad is an outwardly convex arc surface structure.

[0009] Preferably, the flushing needle has a two-section structure, one section is vertically arranged, and the other section is inclined.

[0010] Preferably, the tube body is made of TPU material.

[0011] Preferably, a push plate is installed at the end of the piston rod away from the liquid outlet pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this disposable lacrimal drainage tube, a number of flushing ports are provided on the outer wall of the other end of the tube body, and these flushing ports are arranged at equal intervals from top to bottom. The utility model achieves the goal of fully flushing different positions in the lacrimal duct. This design ensures that a wider area can be covered during the flushing process, thereby improving the flushing effect and treatment effect. The flushing port adopts a special T-shaped structure design, with drainage ends provided on both sides of the top and a liquid inlet end provided at the bottom. This structure not only enhances the structural stability of the flushing port, but also helps to evenly distribute the flushing liquid in the lacrimal duct, further improving the flushing effect. The outer wall of the pad is designed as an outwardly protruding arc surface structure. This design can reduce the patient's discomfort when inserting into the lacrimal duct, and also helps to guide the flushing liquid to the area that needs to be flushed. The tube body is made of TPU material, which has good softness and durability, and can ensure the smoothness and comfort of the drainage tube when inserted into the lacrimal duct. The design of the guide rod makes the insertion process more precise and easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the tube body in the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the flusher in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the flushing port in the utility model.

[0018] The meaning of each number in the figure is:

[0019] 1. Tube body; 11. Flushing jack; 12. Flushing port; 121. Flushing channel; 122. Liquid discharge end; 123. Liquid inlet end; 124. Pad; 13. Drainage port; 2. Flushing device; 21. Flushing tube; 22. Piston rod; 23. Liquid outlet tube; 24. Flushing needle; 3. Guide rod; 31. Handle. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] The utility model provides a disposable tear duct drainage tube, such as Figures 1-4 As shown, it includes a tube body 1, a flusher 2 and a guide rod 3, which is used to guide the tube body 1 into the lacrimal duct. The tube body 1 is a U-shaped structure, and drainage ports 13 are provided at the ends of both ends for drainage. A number of flushing ports 12 are provided on the outer walls of both ends of the tube body 1 for spraying cleaning liquid to flush the lacrimal duct. The flushing ports 12 are arranged at equal intervals from top to bottom to ensure uniform flushing of the lacrimal duct. A flushing jack 11 is provided near the flushing port 12 in the middle section of the tube body 1. The flusher 2 includes a flushing tube 21, and a piston rod 22 is provided inside the flushing tube 21. A liquid outlet pipe 23 is installed at one end of the piston rod 22, and a flushing needle 24 is installed at the outer end of the liquid outlet pipe 23 for filling the cleaning liquid into the tube body 1 to ensure flushing.

[0022] In this embodiment, a handle 31 is installed at one end of the guide rod 3, and the outer wall of the handle 31 is provided with a plurality of anti-slip grooves to facilitate the hand to hold and insert the guide rod 3 into the tear duct.

[0023] Specifically, the flushing port 12 includes a flushing channel 121, which is a T-shaped structure. Liquid discharge ends 122 are provided on both sides of the top of the flushing channel 121 for liquid discharge, and a liquid inlet end 123 is provided at the bottom of the flushing channel 121 for liquid entry.

[0024] Furthermore, a pad 124 is installed on the top outer wall of the flushing channel 121. The outer wall of the pad 124 is an outwardly protruding arc structure, so that there is a gap between the discharge end 122 and the inner wall of the lacrimal duct, which facilitates the flow of flushing liquid.

[0025] Furthermore, the flushing needle 24 has a two-section structure, one section is vertically arranged, and the other section is inclined, which is convenient for holding the flusher 2 by hand and inserting one end of the flushing needle 24 into the tube body 1.

[0026] Furthermore, the tube body 1 is made of TPU material. The tube body 1 is made of TPU material. This material has sufficient hardness before being placed into the human body, and becomes flexible after entering the human body to ensure that the patient feels comfortable.

[0027] Furthermore, a push plate is installed at one end of the piston rod 22 away from the liquid outlet pipe 23 to facilitate manual pushing of the piston rod 22 for movement.

[0028] When the disposable tear duct drainage tube of the present invention is in use, the medical staff will first hold the handle 31 of the guide rod 3. The handle 31 is designed with an anti-slip groove to ensure that the hand is not easy to slip during the insertion process. The tube body 1 is a U-shaped structure, and a drainage port 13 is provided at the end to drain the tears. On the outer walls at both ends of the tube body 1, a number of flushing ports 12 are evenly arranged. Each flushing port 12 includes a flushing channel 121 with a T-shaped structure, with discharge ends 122 on both sides of the top and a liquid inlet end 123 at the bottom. When the flushing liquid is filled into the tube body 1 through the flusher 2, it will enter the flushing channel 121 from the liquid inlet end 123 and be sprayed out from the discharge end 122 to flush the tear duct. The flushing ports 12 are arranged at equal intervals from top to bottom, achieving the goal of fully flushing different positions in the tear duct. This design ensures that a wider area can be covered during the flushing process, thereby improving the flushing effect and therapeutic effect. Medical staff can control the movement of the piston rod 22 by pushing the push plate, so that the flushing liquid is filled into the tube body 1 from the flushing tube 21 through the liquid outlet tube 23 and the flushing needle 24. The two-section structural design of the flushing needle 24 enables it to be easily inserted into the flushing socket 11 of the tube body 1. During the flushing process, the pad 124 at the top of the flushing channel 121 plays a key role. Its outward-convex arc structure ensures that there is an appropriate gap between the discharge end 122 and the inner wall of the lacrimal duct, which not only facilitates the flow of flushing liquid, but also reduces the discomfort to the patient. The tube body 1 is made of TPU material, which has sufficient hardness before being inserted into the human body to facilitate insertion; once it enters the human body, it becomes flexible to ensure the comfort of the patient during use.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A disposable lacrimal duct drainage tube, comprising a tube body (1), an irrigator (2) and a guide rod (3), characterized in that: The tube body (1) is a U-shaped structure, with drainage ports (13) provided at the ends of both ends. The outer walls of both ends of the tube body (1) are provided with a plurality of flushing ports (12), and the flushing ports (12) are arranged at equal intervals from top to bottom. A flushing jack (11) is provided in the middle section of the tube body (1) near the flushing port (12). The flusher (2) includes a flushing tube (21), a piston rod (22) is provided inside the flushing tube (21), a liquid outlet tube (23) is installed at one end of the piston rod (22), and a flushing needle (24) is installed at the outer end of the liquid outlet tube (23).

2. The disposable lacrimal drainage tube according to claim 1, characterized in that: A handle (31) is mounted on one end of the guide rod (3), and a plurality of anti-slip grooves are provided on the outer wall of the handle (31).

3. The disposable lacrimal drainage tube according to claim 1, characterized in that: The flushing port (12) comprises a flushing channel (121), the flushing channel (121) is a T-shaped structure, liquid discharge ends (122) are provided at both sides of the top of the flushing channel (121), and a liquid inlet end (123) is provided at the bottom of the flushing channel (121).

4. The disposable lacrimal drainage tube according to claim 3, characterized in that: A cushion block (124) is installed on the top outer wall of the flushing channel (121), and the outer wall of the cushion block (124) is an outwardly convex arc surface structure.

5. The disposable lacrimal drainage tube according to claim 1, characterized in that: The flushing needle (24) has a two-section structure, one section is vertically arranged, and the other section is inclined.

6. The disposable lacrimal drainage tube according to claim 1, characterized in that: The tube body (1) is made of TPU material.

7. The disposable lacrimal drainage tube according to claim 1, characterized in that: A push plate is installed at one end of the piston rod (22) away from the liquid outlet pipe (23).