Ocular surface amniotic membrane coverer

Abstract

The invention relates to a sutureless amniotic membrane fixing device applied in ocular surface amniotic membrane covering surgery, in particular to an ocular surface amniotic membrane coverer. The fixing device is in the shape of a fish mouth and is provided with an opening on the outer side, the general profile of the fish mouth is streamline according to forms of an ocular surface and a conjunctival sac, the opening is positioned at an outer canthus, and the fixing device has good supporting performance, can guarantee an amniotic membrane after being clamped by the device to be closely adhered on the ocular surface, and is high in adhesiveness. When the sutureless amniotic membrane fixing device is in use, the amniotic membrane reverses from the bottom of the fixing device to wrap the device, and is fixed in a groove on the surface of the device by means of shackling, and the bottom of the fixing device is completely wrapped in the amniotic membrane, so that friction damage to the ocular surface is reduced, and foreign body sensation is small. After the amniotic membrane is fixed in the device, an operator holds and gently squeeze an upper arm and a lower arm of the fish mouth to enable upper and lower diameters of the fish mouth to be reduced, simultaneously uses another hand to prop open upper and lower eyelids of a patient, disposes the upper arm and the lower arm of the device into upper and lower fornices and releases the arms, so that the device is positioned on the ocular surface after being propped open, thereby being less prone to shedding. The opening of the fixing device is positioned on a temporal side, so that effusion below the amniotic membrane is avoided, and the fixing device is least prone to shedding. By the sutureless amniotic membrane fixing device, the process of the amniotic membrane covering surgery can be simplified, and damage to the ocular surface due to surgical suturing can be avoided; the sutureless amniotic membrane fixing device can be reused, and the surgical process is greatly simplified.

Description

Technical field [0001] The invention is a sutureless amniotic membrane fixation device used in ocular surface amniotic membrane covering operation. Background technique [0002] Amniotic membrane (amniotic membrane, AM), as an important cell carrier and biofilm with special physiological characteristics, has the functions of promoting epithelial repair, inhibiting scar formation, inhibiting corneal neovascularization, and inhibiting immune response. play an important role in. The current method of fixing the amniotic membrane is mainly to suture and fix the amniotic membrane on the injured ocular surface during the operation process. Severe ocular surface damage often requires multiple amniotic membrane covering operations. Due to the high viscosity and elasticity of the amniotic membrane tissue, the surgical suturing process is complicated and time-consuming, and the sutures inevitably cause surgical trauma, and the patient has pain, suture reaction, bleeding, superficial ...

AI Technical Summary

Problems solved by technology

Due to the high viscosity and elasticity of the amniotic membrane tissue, the surgical suturing process is complicated and time-consuming, and the sutures inevitably cause surgical trauma. The patient has pain, suture reaction, bleeding, superficial scleritis, etc., and the amniotic membrane is easily broken and perforated. Premature dissolution and shedding will affect the treatment effect

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