Separating scissors for deep lamellar keratoplasty

Abstract

The invention discloses separation scissors for deep lamellar keratoplasty. The separation scissors comprise a left piece and a right piece which are hinged to each other, the left piece comprises a left scissor head and a left handle, and the right piece comprises a right scissor head and a right handle; the separating scissors further comprise a syringe, and the syringe comprises a cylinder usedfor containing a viscoelastic substance, a push rod used for pushing and injecting the viscoelastic substance and a needle used for transporting the viscoelastic substance; the needle is at least partially fixedly connected to the left or right scissor head. According to the separation scissors, functions of an elastic layer and a rear substrate layer after the viscoelastic substance is separatedand functions of a substrate layer after scissoring can be combined, intraoperative operation is facilitated, and the surgical difficulty is reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a separating scissors for deep lamellar keratoplasty. Background technique [0002] Although the human cornea is very thin, the structure of the cornea itself can be divided into corneal epithelium, Bowman's membrane, stroma, Bowman's membrane, and corneal endothelial layer from the outside to the inside; There are two types of penetrating keratoplasty and lamellar keratoplasty. Lamellar keratoplasty is an operation performed on part of the corneal tissue. Only the superficial corneal tissue with lesions is removed, and the relatively intact recipient cornea in the deep layer is still reserved as a transplant bed, and then corneal materials of the same size and thickness are taken. The superficial corneal sheet is sutured on the wounded surface of the patient's cornea. Deep lamellar keratoplasty (DLKP) is based on lamellar keratoplasty, the corneal stromal tissue of recipient les...

AI Technical Summary

Problems solved by technology

At present, medical staff often use separating scissors to separate the stroma layer after excision, and inject the viscoelastic agent through the existing syringe. The two instruments are set independently and used separately, which is not convenient for intraoperative operation and increases the difficulty of the operation.

Images