Novel conjunctival flap drilling device

Abstract

The invention discloses a novel conjunctival flap drilling device comprising a handle and a blade connected to one end of the handle; a blade comprises an upper arc edge, a lower bottom edge and two side edges, the two side edges are connected with the two ends of the upper arc edge and the two ends of the lower bottom edge respectively, the whole blade forms a hollow cylinder similar to a trapezoid, and a cutting edge is arranged at the end, deviating from the handle, of the blade. A conjunctival flap with the flat edge can be obtained, the thickness is controllable, when the conjunctival flap is used, only the handle needs to be slightly pressed, the conjunctival flap with the flat edge and the fixed size is obtained through the cutting edge of the blade, the thickness of the conjunctival flap is controlled through the strength of pressing the handle, use is convenient and fast, operation duration can be shortened, operation difficulty and risks are reduced, and patient experience isimproved.

Description

technical field [0001] The invention relates to the technical field of ophthalmic medical instruments, in particular to a novel conjunctival flap driller. Background technique [0002] In conjunctival surgery, free conjunctival flaps (conjunctival epithelium) are often transplanted from the bulbar conjunctiva of the temporal side and the upper fornix to repair conjunctival defects or corneal ulcers. Due to the lack of specific surgical instruments, ordinary microscopic ophthalmic scissors or surgical blades are used to prepare different shapes, especially trapezoidal The operation of the conjunctival flap is difficult, and it is difficult to control the size and thickness of the conjunctival flap. Marking the size of the conjunctiva is time-consuming and is rarely used. In addition, the conjunctiva of young people is relatively thick, and the conjunctival flap is likely to contain more underlying fascia tissue, which cannot guarantee a thin conjunctival flap, resulting in e...

AI Technical Summary

Problems solved by technology

In addition, the conjunctiva of young people is relatively thick, and the conjunctival flap is likely to contain more underlying fascia tissue, which cannot guarantee a thin conjunctival flap, resulting in edema and shrinkage of the conjunctival flap after surgery; while the conjunctiva of the elderly is relatively thin, and the flap making process is easy to wear. Broken, it is difficult to ensure the integrity of the conjunctival flap, which makes repair difficult

[0003] At present, there is no medical device for making conjunctival flaps on the market. In the prior art, doctors use micro scissors to make conjunctival flaps. However, due to reasons such as poor surgical skills of doctors and poor cooperation of patients, conjunctival flaps are taken with irregular edges, Uneven thickness of the conjunctival flap and other reasons increase the difficulty of the operation, take a long time, and cause poor patient experience

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