Corneal astigmatism release assistor

Abstract

The present invention provides a corneal astigmatism release assistor which comprises an outer fixing ring, an operating handle and a sliding cutter groove assembly, an axial position dial is arranged on the upper surface of the outer fixing ring and comprises scale marks and angle scales, an outer ring sliding groove is formed in the middle of the outer fixing ring, a cutter groove adjusting opening is formed in the outer ring side surface of the outer fixing ring, the cutter groove adjusting opening is communicated with the outer ring sliding groove, and an included angle is formed between the lower surface of the outer fixing ring and the horizontal plane. The lower surface of the outer fixing ring of the device is an eyeball-imitating surface, so that the device can stably contact with an eyeball, the structural design of the axial position dial can accurately position an astigmatism axial position and the starting end of a cornea incision, the sliding knife groove assembly can slide and can stabilize the radian and depth of the cornea incision, the assistor can ensure that the incision is regular, round and regular in shape and fixed in depth, and the postoperative effect is ensured. The assistor can be widely applied to corneal astigmatism release operations.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a corneal astigmatism loosening aid. Background technique [0002] Cataract is the most common blinding eye disease in the world. With the development of economy and technology, cataract patients have higher and higher requirements for postoperative visual quality and uncorrected vision. , also demanded durability, comfort, and mirror-free status. Preoperative corneal astigmatism is an important factor leading to poor postoperative vision in cataract patients. Modern manipulative limbal release is economical, simple and safe, and has good effects in correcting moderate to low corneal astigmatism. It is a surgical technique that is very suitable for popularization. [0003] However, this surgical approach requires the assistance of a device that accurately marks the location of corneal astigmatism and controls the depth of the corneal incision. In the past, for corneal ...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the technical problems of high requirements on the operator, poor repeatability, and prone to errors in traditional surgical methods using manual marking, and provides a corneal astigmatism loosening aid. The lower surface of the external fixing ring of the device is an imitation eyeball The device can stably contact the eyeball. The structural design of the axis dial can accurately locate the axis of astigmatism and the starting end of the corneal incision. The sliding knife groove component can slide and can stabilize the radian and depth of the corneal incision. The device can ensure the regularity and shape of the incision. Roundness, deep fixation, guaranteed postoperative effect

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