Drainage device for lacrimal sac operation

Abstract

The invention discloses a drainage device for a lacrimal sac operation, comprising a drainage tube. The drainage tube is connected with an implanting tube which is internally provided with a metal rod at one end, a sphere is arranged at one end of the metal rod, the drainage tube is provided with a base, a tube body is arranged in the middle of the base and forms an inclined angle relative to thebase so that the tube body is in an arc shape, the center part of the tube body is provided with a drainage cavity, the tube body has an inclined top end surface, the drainage cavity has an elliptical top end, the outer wall of the tube body is the shape of a column formed by a high outer wall and a lower outer wall, the size defined by the long axis and the short axis of the inclined surface in a range of 360 degrees is larger than the outer wall diameter of the tube body, a first through hole is arranged at the upper part of the high outer wall of the tube body, the implanting tube is mounted in the first through hole, and one end of the implanting tube, which is provided with the metal rod, penetrates through a second through hole on the base. The invention is suitable for the drainagetreatment on patients with a nasolacrimal canal obstruction syndrome, chronic dacryocystitis syndrome, and the like accompanied with lacrimal canaliculi obstruction syndrome through whole lacrimal passage intubation.

Description

technical field [0001] The invention relates to a medical device, which is a lacrimal sac surgical drainage device specially used for nasolacrimal duct obstruction and lacrimal duct obstruction operation. Background technique [0002] When suffering from chronic dacryocystitis, nasolacrimal duct obstruction, dacryocystor mucocele and other diseases, the most effective treatment method is surgical treatment. The current surgical method is to treat the above diseases by performing dacryocystorhinostomy. However, most patients with the above-mentioned diseases are accompanied by obstruction of the lacrimal canaliculus. At this time, the simple dacryocystorhinostomy cannot solve the obstruction problem, so total lacrimal duct intubation is required for drainage treatment. Yet the problem that this operation exists is, when carrying out lacrimal canaliculus catheter intubation, must pass through the central hole of the anastomotic drainage tube to enter the nasal cavity, and this...

AI Technical Summary

Problems solved by technology

However, most patients with the above-mentioned diseases are accompanied by obstruction of lacrimal canaliculi. At this time, simple dacryocystorhinostomy cannot solve the problem of obstruction, so total lacrimal duct intubation is required for drainage treatment

Yet the problem that this operation exists is, when carrying out lacrimal canaliculus catheter intubation, must pass through the central hole of the anastomotic drainage tube to enter the nasal cavity, and this has just caused the space of the central hole of the anastomotic drainage tube to be squeezed, making the drainage effect Reduce the operation time, prolong the operation time, and easily lead to poor operation results, often requiring a second operation, which brings greater pain to the patient. At the same time, the drainage tube used in the operation must use a nasal endoscope to perform stoma and placement , so it cannot be used for open dacryocystorhinostomy, and it is more difficult to place during surgery, so that the treatment of total lacrimal cannulation cannot achieve the best effect according to the patient's condition

Images