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Expandable and drug-loading lacrimal passage drainage tube

A drainage tube and drug-loading technology, applied in dilators, drug devices, catheters, etc., can solve the problems of unsatisfactory drainage and support effects, limited drug dosage, and large randomness in production, and achieve anti-inflammatory and anti-fibrogenesis Effect, maintenance of drug concentration, comprehensive effect ideal effect

Inactive Publication Date: 2021-06-25
THE THIRD MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that self-made rubber drainage strips or gauze drainage strips are made randomly, have different standards, the drainage effect and support effect are not ideal, the local irritation is large, the nasal cavity ventilation is affected, and the eye drops reach the local drug. A lacrimal duct drainage tube that can be expanded and loaded with drugs is proposed for at least one of the technical problems of limited amount, short local maintenance time of drugs for flushing the lacrimal duct, and unsatisfactory drug effects.

Method used

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  • Expandable and drug-loading lacrimal passage drainage tube
  • Expandable and drug-loading lacrimal passage drainage tube
  • Expandable and drug-loading lacrimal passage drainage tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] refer to Figure 1-4 , the present embodiment provides an expandable and drug-loaded lacrimal drainage tube, including: a drainage tube head 1, an inflatable balloon 2, a drainage tube body 3, a drainage tube tail 4, an inflatable catheter 5, and a drug-loading chamber 6 , micropore 7, self-closing device 8 for inflatable catheter, traction line 9, traction line fixing device 10, injection hole 11, hollow lumen 12 and side wall radiation development strip 13, the top of drainage tube head end 1 is equipped with traction line Fixing device 10, the top of the drainage tube head end 1 is equipped with a traction line 9, the bottom of the drainage tube head end 1 is connected with an inflatable balloon 2, and the front of the inflatable balloon 2 is equipped with a drug-loading chamber 6, and the drug-loaded The outer side of the warehouse 6 is provided with a micropore 7, and the bottom of the inflatable balloon 2 is equipped with a drainage tube 3, and one side of the dra...

Embodiment 2

[0035] refer to Figure 1-4 The difference between this embodiment and the above-mentioned embodiments is that the injection holes 11 are evenly distributed on the top of the head end 1 of the drainage tube, and the injection holes 11 run through the head end 1 of the drainage tube and are connected to the drug-loading chamber 6 .

[0036] Preferably, in one of the preferred technical solutions of this embodiment, the drainage tube tail 4 is in the shape of a sheet, the length of the drainage tube tail 4 is about 10 mm to 30 mm, and the lower end of the drainage tube body 3 is obliquely round and blunt, so The length of the drainage tube body 3 is about 10mm-15mm, and the inflatable balloon 2 is evenly distributed on the outside of the hollow lumen 12, and the diameter of the inflatable balloon 2 can reach 5mm-15mm after inflation.

[0037] Preferably, in one of the preferred technical solutions of this embodiment, the self-closing device 8 of the inflatable catheter is connec...

Embodiment 3

[0040] refer to Figure 1-4 The difference between this embodiment and the above-mentioned embodiments is that: the drug-loaded compartments 6 are evenly distributed outside the inflatable balloon 2, and the drug-loaded compartments 6 communicate with each other.

[0041] Preferably, in one of the preferred technical solutions of this embodiment, micropores 7 are opened on the outside of the drug-loaded chamber 6, and the cross-section of the micropores is V-shaped, including the inner opening close to the inner cavity of the drug-loaded chamber 6 and far away from the drug-loaded chamber. The outer opening in the direction of the inner cavity of the drug storehouse 6, and the slope connecting the inner opening and the outer opening, the diameter of the inner opening is smaller than the diameter of the outer opening, the diameter of the inner opening is: 0.3-1.0mm, and the diameter of the outer opening is 0.6mm- 2.0mm. The micropores are arranged in longitudinal rows, each dr...

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Abstract

The invention relates to the technical field of lacrimal passage drainage tubes, and discloses an expandable and drug-loading lacrimal passage drainage tube. The drainage tube comprises a drainage tube head end, a pull wire fixing device is installed at the top of the drainage tube head end, a pull wire is installed at the top of the drainage tube head end, an inflation balloon is connected to the bottom of the drainage tube head end, a medicine carrying bin is installed on the front face of the inflation balloon, and micropores are formed in the outer side of the medicine carrying bin; a drainage tube body is installed at the bottom of the inflation balloon, one side of the drainage tube body is connected with a side wall radioactive ray developing strip, a hollow tube cavity is installed in the inflation balloon, a drainage tube tail is installed at the bottom of the drainage tube body, and an inflation catheter is connected to the bottom of the drainage tube tail. According to the invention, the designed product is of a hollow design, the hollow part can locally drain inflammatory exudate and local hematocele, and a certain gap is formed between the supporting tube and local tissues in a state that the supporting tube is not fully filled with air, so that a better drainage effect can also be achieved.

Description

technical field [0001] The invention relates to the technical field of a lacrimal duct drainage tube, in particular to an expandable and drug-loadable lacrimal duct drainage tube. Background technique [0002] Dacryocystorhinostomy (ostomy) is the main surgical method for the treatment of nasolacrimal duct obstruction and chronic dacryocystitis. Clinically, self-made rubber drainage strips or gauze drainage strips are commonly used to drain local secretions and accumulated blood to achieve drainage and support anastomosis. Road purpose. At present, the production of self-made rubber drainage strips or gauze drainage strips is very random, and the standards are different. The drainage effect and support effect are often not ideal, or the local irritation is large, or the nasal ventilation is affected. Bleeding at the anastomosis after dacryocystorhinostomy (ostomy) is a common complication. The commonly used clinical hemostasis method is nasal packing to stop bleeding, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61M29/04A61F9/007
CPCA61M25/10A61M25/1018A61M29/02A61F9/00772A61F9/0017A61F9/00736A61M2025/105A61M2025/1079A61M2029/025A61M2210/0612
Inventor 陶海白芳周希彬王朋王立华王菲柳川
Owner THE THIRD MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL
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