Device for eliminating crystalline lens equator epithelial cells

Abstract

The invention discloses a device for eliminating crystalline lens equator epithelial cells. The device comprises a handheld rod and a connecting rod connected to one end of the handheld rod. The tailend of the connecting rod is bent to form a working rod. A polishing rod is connected to the side wall, close to the near end, of the top face of the working rod. The ends of the working rod and the polishing rod are formed into cambered surfaces, and the portion, close to the end, of the top face of the polishing rod is provided with a round obtuse part transited from the cambered surfaces to thetop face of the polished rod. High-efficiency front capsule polishing can be performed when capsulorhexis is just completed and crystals are not taken out, no viscoelastic substance needs to be adopted in the polishing process, intraocular hypertension complications are avoided, the problem that cortex and a capsule opening are tightly stuck after femtosecond capsulorhexis can be solved, the front capsule polishing operation can be completed easily for microcoria operation, the phenomenon that bowl-shaped cortex shells are formed in the ultrasonic emulsification process can be avoided, and the back capsule cracking risk is lowered; meanwhile, the front end is provided with a flexible extension rod capable of stretching into the equator for polishing, and the equator can be polished.

Description

technical field [0001] The invention relates to the field of ophthalmic medical devices, in particular to a device for removing epithelial cells in the equator of a lens. Background technique [0002] With the widespread development of modern cataract phacoemulsification technology and femtosecond laser-assisted cataract surgery technology, posterior cataract has become an important factor affecting patients' postoperative vision. It should be pointed out that almost all lens capsules after cataract extraction will have different degrees of residual lens epithelial cell proliferation, migration, and fibrosis. The removal of lens residual epithelial cells has been a research that cataract doctors are very concerned about in the past few decades. hot spot. Various adverse events after cataract surgery, such as capsular bag shrinkage, postoperative deviation of intraocular lens, and posterior cataract, are related to the proliferation, migration, and fibrosis of residual lens ...

AI Technical Summary

Problems solved by technology

[0004] 1. After the lens is removed, the lens capsule is soft and floating, and it is difficult for doctors to polish the capsule, and the efficiency is generally low; 2. Although it can be ensured by injecting a large amount of viscoelastic agent into the capsule during the polishing process The capsule is filled and bulging, but the viscoelastic agent must be sucked out after polishing, which not only increases the operation steps and time, but also easily leads to complications such as high intraocular pressure due to incomplete suction of the viscoelastic agent; 3. The equatorial lens capsule It is the germinal area of ​​the lens epithelial cells, and it is also the most concentrated part of the epithelial cells. However, because the equator of the lens is located behind the iris, it cannot be observed during the operation. Under the current existing technology, the doctor cannot polish the equator; 4. Small Under pupillary surgery, the polishing of the anterior and posterior capsules is more difficult due to the narrowing of the visible range, and there is even a serious risk of capsule rupture; 5. Femtosecond laser assistance is often used in modern refractive cataract surgery to achieve precise anterior The capsule opening is made, but femtosecond surgery will remove the lower cortex when cutting the anterior capsule, and because the incision is very neat, the doctor must attract the anterior capsule when removing the cortex with negative pressure suction, which increases the Stretch on the ligament

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