Small corneal limbus transplant collector for living body

Abstract

The invention relates to a small corneal limbus transplant collector for a living body. The small corneal limbus transplant collector for the living body comprises an upper forceps handle, a lower forceps handle, a cutter ring and a cutter plate; a first hollow structure is arranged at the front end of the upper forceps handle, and a second hollow structure is arranged at the front end of the lower forceps handle; a first bulge embedded with the first hollow structure is arranged at the tail end of the cutter ring; a second bulge embedded with the second hollow structure is arranged at the tail end of the cutter plate; the head end of the cutter ring is of an annular hollow structure, and the head end of the cutter plate is an annular solid piece. The small corneal limbus transplant collector has the advantages that the structure is simple, operation is easy and convenient, the small corneal limbus transplant collector is designed according to the morphological characteristics of the human cornea, corneal limbus tissue can be accurately cut, an operator can select different corneal limbus areas for multi-site collection, scar repair caused by the too large cutting area in a traditional operation is avoided, meanwhile, the suite can be automatically replaced and freely matched, the area of a required transplantation body is adjusted, the operation difficulty and time are effectively reduced, and popularization is easy.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a collector of tiny limbal corneal grafts used in living bodies. Background technique [0002] Corneal epithelial stem cells are mainly stored in the corneal limbus, which is the key to corneal epithelial renewal metabolism and damage repair. Normal limbal and corneal epithelial stem cells act as a barrier to prevent invasion of the conjunctival epithelium into the corneal surface. The loss or loss of function of corneal epithelial stem cells caused by various acquired or genetic reasons, such as: chemical and thermal burns, wearing contact lenses, Stevens-Johnson syndrome, congenital aniridia, etc., is called limbal stem cell deficiency (limbal stem cell deficiency). stem cell deficiency, LSCD). Limbal keratoplasty is currently the only effective treatment for LSCD. [0003] Limbal corneal transplantation has been carried out so far, and there are a variety of sur...

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Problems solved by technology

However, there is no relevant report about this kind of tiny limbal graft harvester used in living bodies.

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