Corneal epithelium flap former and corneal epithelium flap forming method

Abstract

The invention relates to the field of medical technologies of the ophthalmology department, and provides a corneal epithelium flap former and a corneal epithelium flap forming method. The corneal epithelium flap former comprises a locating ring and a drill ring movably inserted in the locating ring, wherein a groove is circumferentially formed in the top of the locating ring, a guide part is arranged on the drill ring, and the guide part forms guiding match with the groove when the drill ring rotates relative to the locating ring. According to the former, the original epithelium drill ring serves as the locating ring for accommodating ethanol solution, in addition, the drill ring movably inserted is additionally arranged in the locating ring, the drill ring can be lifted upwards when ethanol solution is injected, thus the epithelium flap to be drilled and grinded below the drill ring is sufficiently soaked, during drilling and grinding, the drill ring is downwards moved till contacting the corneal epithelium, through the guide match between the guide part arranged on the drill ring and the arc-shaped groove in the top of the locating ring, the drill ring can stably rotate in the locating ring, thus the regular and complete epithelium flap is obtained, and moreover, the whole operation process is simple and efficient.

Description

technical field [0001] The invention relates to the technical field of ophthalmic medical treatment, and in particular provides a corneal epithelial flap forming device and a corneal epithelial flap forming method. Background technique [0002] Laser epithelial keratomileusis (Laser epithelial keratomileusis, LASEK) is still the main surgical method for laser treatment of myopia. During the operation, an epithelial flap with a diameter of 8-10 mm is required to be made in the center of the cornea, and the epithelial flap is opened. Afterwards, excimer laser is used for in-situ mosaic to change the diopter of cornea so as to achieve the purpose of correcting myopia and astigmatism, and then the epithelial flap is reset or removed. [0003] The conventional method of making an epithelial flap is to place an epithelial drill ring on the cornea, put 20% ethanol in the drill ring, infiltrate it for 20-30 seconds, rinse thoroughly, then use an epithelial spatula to gently separate...

AI Technical Summary

Problems solved by technology

[0004] During the clinical operation, it is difficult to separate the epithelial flap with an epithelial spatula. In order to prevent the elastic layer from being damaged, the edge of the epithelial spatula is relatively blunt. Raising the edge can easily cause irregular edges of the epithelial flap and poor integrity of the flap, thus affecting the surgical effect

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