Indwelling type artificial lacrimal ductule

A lacrimal canaliculus and artificial technology, applied in catheters, medical science, stents, etc., can solve the problems of low success rate of surgery, local trauma of patients, and many complications, and achieve the effect of good safety performance, low production cost, and simple structure

Inactive Publication Date: 2017-11-10
刘超
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

In clinical work, the traditional methods of lacrimal puncta expansion, lacrimal duct flushing or lacrimal duct probing are generally used, but because of the elastic retraction of the patient's puncta and lacrimal canaliculus, the original stenosis or obstruction state is quickly restored, even if the patient After repeated treatments, the effect is still not good, and the risk of puncta laceration and formation of lacrimal canaliculus false channel is significantly increased
"Chinese Minkang Medicine" 2015 Year 27 volume 56-57 The page "Clinical Observation of Patients with Lacrimal Punctal Stenosis or Occlusion Treated with Disposable Lacrimal Duct Recanalizatio

Method used

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  • Indwelling type artificial lacrimal ductule
  • Indwelling type artificial lacrimal ductule
  • Indwelling type artificial lacrimal ductule

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specific Embodiment approach

[0010] Specific embodiments: the present invention is an artificial lacrimal canaliculus that can be placed in the lacrimal canaliculus, including: ① the blind end of the artificial lacrimal canaliculus; 135 ③ The round hole in the center of the main body of the artificial lacrimal canaliculus. The artificial lacrimal canaliculus is a hollow tube, and the tear fluid can be drained into the lacrimal sac through ③ during the implantation period. ② It is an umbrella structure, and the angle between it and the main body in the natural state is 135 °, can be recovered under the action of external force 180 ° for easy implantation and removal.

[0011] The clinical application is that the blunt irrigation needle of auxiliary implantation is penetrated from ③ and pushed to ①, and then one end of the artificial lacrimal canaliculus can be implanted into the superior or inferior lacrimal canaliculus to ensure that ② of the artificial lacrimal canaliculus enters the tear Re...

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Abstract

The invention discloses an artificial lacrimal canaliculus which can be placed in the lacrimal canaliculus. It is characterized in that: both ends are smooth blind ends, and there is a quadrangular umbrella-shaped structure near the blind ends. The umbrella-shaped structure has certain toughness and good strength. Elastic, leaving a round hole with a diameter of about 0.3mm in the middle, which is convenient for implantation and removal after treatment. As a material for ophthalmic surgery, the invention can continuously and effectively expand the puncta and canaliculus, has simple structure, low cost and convenient operation, and provides conditions for clinical treatment of puncta and canaliculus stenosis or occlusion.

Description

technical field [0001] The invention relates to an artificial lacrimal canaliculus which can be placed in the lacrimal canaliculus, and belongs to the technical field of medical instruments. Background technique [0002] At present, many patients in the Department of Ophthalmology are troubled by tears. Clinical analysis shows that the lacrimal puncta are narrowed or blocked, and the main reason is the narrowing or blocking of the lacrimal canaliculus and the common lacrimal duct. In clinical work, the traditional methods of lacrimal puncta expansion, lacrimal duct flushing or lacrimal duct probing are generally used, but because of the elastic retraction of the patient's puncta and lacrimal canaliculus, the original stenosis or obstruction state is quickly restored, even if the patient After multiple treatments, the effect is still not good, and the risk of puncta laceration and canaliculus false channel formation is significantly increased. "Chinese Minkang Medicine" 20...

Claims

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Application Information

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IPC IPC(8): A61F2/82A61F9/007A61M25/00
CPCA61F2/82A61F9/00772A61F2210/00A61F2230/0017A61M25/0021A61M25/0043A61M25/0074A61M2210/0612
Inventor 刘超张振华王树真徐则林孙颖
Owner 刘超
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