Marked corneal endothelium trephine and operation method thereof

Abstract

The invention relates to a marking corneal endothelium trephine and an operation method thereof, the marking corneal endothelium trephine comprises a finger holding part and a marking blade, and the marking blade is fixed at the lower end of the finger holding part. Seen from the upper surface of the marking blade, one side of the marking blade is sunken inwards in the clockwise direction and then protrudes outwards to form a marking part of the marking blade, and the inwards-sunken part and the outwards-protruding part of the marking part are axially symmetrical along the center of the marking part. After the corneal endothelium implant is cut by the marked corneal endothelium trephine, the corneal endothelium implant with the permanent asymmetric mark is generated, corneal endothelium cells are not damaged, and meanwhile, the area of the corneal endothelium implant is not influenced. The intraocular direction of the corneal endothelial implant can be judged through the permanent asymmetric marking direction, so that the surgical operation is simpler and safer, and the surgical complications are reduced.

Description

technical field [0001] The invention relates to a marked corneal endothelium trephine and an operation method thereof, belonging to the technical field of medical devices. Background technique [0002] With the continuous development of corneal transplantation technology, corneal endothelial transplantation has gradually replaced penetrating keratoplasty as the mainstream surgery for corneal endothelial diseases because of its small damage, rapid recovery and good prognosis. Among them, Descemet's membrane endothelial transplantation (DMEK) only transplants the corneal Descemet's membrane and corneal endothelial layer with a thickness of about 15 microns, and completely anatomically restores the corneal Descemet's membrane and endothelial layer. Compared with other corneal endothelial transplantation, its recovery is faster. , And the postoperative visual acuity is excellent, and the number of operations is increasing year by year. Because the corneal endothelial graft of D...

AI Technical Summary

Problems solved by technology

However, when marked with a marker pen, it will cause irreversible damage to the corneal endothelial cells, resulting in a decrease in the number of transplanted corneal endothelium and affecting the prognosis

In addition, because the markings made in this way will gradually fade or even disappear with time and surgical operations, there are often unrecognizable marks during surgery.

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