Choroid and iris stitching instrument

Abstract

The invention discloses a choroid and iris stitching instrument which comprises a rod-shaped handle and a stitching needle fixedly connected with the handle. The stitching needle is in the shape of a solid round rod; the length of the stitching needle is 30-40 mm; the diameter of the stitching needle is 0.5-0.6 mm; and a thread hole is formed in the tip of the stitching instrument. The choroid and iris stitching instrument is simple in structure, quick and easy to operate and suitable for stitching various traumatic choroids and irises. Incisions are small, the needle can enter an eye to stitch under a microscope, and stitching accuracy is guaranteed; in addition, operation steps can be reduced obviously, and operation time is shortened; injury on other tissues is reduced; and technical requirements on doctors are reduced relatively. In a word, a powerful technical support is provided for stitching of choroids and irises, and the choroid and iris stitching instrument has a quite important clinical practical significance.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a choroid and iris stapler. Background technique [0002] Ocular trauma can lead to various injuries of the choroid, such as serous or hemorrhagic detachment of the choroid, rupture of the choroid, detachment of the choroid, elastic injury of the choroid, splitting of the choroid, defect of the choroid, shortening of the choroid, and perforation. Some of these cases developed permanent detachment of the choroid. This kind of damage to the choroid not only affects the visual function of the patient, but also is not conducive to the recovery of the ocular structure of the injured eye and the maintenance of intraocular pressure, and the level of intraocular pressure directly determines whether the injured eye can get rid of the bad luck of eyeball atrophy. Unlike the retina, the choroid is histologically rich in elastic fibers and collagen fibers. The histological char...

AI Technical Summary

Problems solved by technology

[0006] 3. Choroidal suture fixation, this method is suitable for the reduction of a large range of choroidal detachment, but the operation is complicated, the damage is large, and it is easy to bring new complications

After vitrectomy, the scope of choroidal detachment is determined under intraocular lighting, and the corresponding sclera is sutured through the sclera surface with a needle, but it is not accurate enough

Its disadvantages are: on the one hand, the large curved needle required for suturing is difficult to operate when it enters the eye, and it is easy to cause damage to other tissues;

It has the following disadvantages: the operation is time-consuming; the pulling of the iris is relatively large; it is easy to damage the lens, iris and corneal endothelium

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