Biomembrane material strip belt for high-myopia posterior scleral reinforcement surgery and manufacture method thereof

Abstract

The invention relates to an ophthalmic medical appliance and a manufacture method of the ophthalmic medical appliance, in particularly to a biomembrane material strip belt for a high-myopia posterior scleral reinforcement surgery. Base materials of the biomembrane material strip belt have a wide resource, the biomembrane material strip belt is blue after the treatment, the manufactured blue biomembrane material strip belt has good visuality and cannot easily get lost in the implantation process; the hardness and the elasticity are proper, the adaptability is good, the implantation is easy, and the biomembrane material strip belt is easily pasted, sewed and fixed with a receptor sclera; after the implantation into the human body, the toxicity is low, the mechanical strength is high, the tissue compatibility is good, the degradation resistance capability is high, and the calcification is not easy to occur; and the whole body of the biomembrane material strip belt is in a fusiform shape, the thickness is 0.15 to 0.45mm, the side part is an inclined surface, the middle section is widest, the middle section is gradually narrowed in arc-shaped transition respectively towards the left end and the right end, the length is 30 to 60mm, the width of the middle section is 10 to 16mm, the width of the left and the right end is 2 to 3mm, through the special shape design of the strip belt, the venae vorticosae can be prevented from being pressed, the reinforcement range is enlarged, the inclined surface of the side part is in 30 to 45 degrees, the marking at the positive surface and the opposite surface is realized, and the twisting turning is not easy to cause during the implantation.

Description

technical field [0001] The invention relates to an ophthalmic medical device, in particular to a biofilm material strip for scleral reinforcement after high myopia and a manufacturing method thereof. Background technique [0002] In patients with high myopia, due to genetic and environmental factors, the thickness of the posterior sclera will become thinner, the strength will be weakened, and continuous expansion will occur. The eye axis will continue to extend, and the diopter of myopia will continue to increase. As the course of the disease continues to progress, most patients become blind due to fundus lesions in adulthood. [0003] Posterior sclera reinforcement is the only operation to control the progression of high myopia. Its principle is: the reinforcement material strips are transplanted and fixed on the posterior sclera, and they fuse to form a "new sclera" with increased thickness, which increases the strength of the posterior sclera and prevents expansion. Limi...

AI Technical Summary

Problems solved by technology

Due to the small size of the sheet material, it is difficult to suture and fix it during implantation. After surgery, it will form adhesions with tissues such as extraocular muscles and orbital septum, and cannot form fusion with the posterior pole of the eyeball. The surgical effect is poor.

[0011] The operation of the strip material is to make an incision on the temporal side of the conjunctiva. The strip material passes through the inferior oblique muscle and the inferior and lateral rectus muscles, and is sutured and fixed on the sclera. The reinforced area is the posterior sclera of the eyeball on the temporal side of the optic nerve. It conforms to the principle of surgery, but the strip-shaped design of the strip will cause pressure and damage to the superior temporal, inferior temporal and inferior nasal vortex veins, causing eyeball congestion, intraocular hemorrhage and intraocular pressure elevation and other complications, and the width of the strip is only 6-8mm, the reinforcement range is insufficient, affecting the curative effect

[0012] Posterior scleral reinforcement is performed in the deep part of the orbit, and it is difficult to expose the back of the eyeball. The strip of material needs to pass through a very small space that can be exposed behind the equator of the eyeball, and it will be affected by bleeding and fascia. Traditional strips The band has not been colored, the color is not eye-catching enough, the visibility is poor, it is easy to get lost during the implantation process, or the band is twisted and turned, which affects the operation process and causes complications due to excessive manipulation damage

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