Method for manufacturing and storing corneal injury scar-free repairing device
A technology of corneal injury and manufacturing method, which is applied in the direction of medical equipment and ophthalmic treatment, etc., which can solve the problems of infection, corneal perforation, corneal haze, and patient pain, so as to reduce inflammation and fibrovascular ingrowth, prevent The formation of corneal scar and the effect of avoiding secondary damage
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Embodiment 1
[0059] 1. Pretreatment of Amnion
[0060] There are many methods for amniotic membrane pretreatment. This embodiment adopts: the placenta obtained by selective cesarean section is immediately treated with a physiological solution containing 50 mg / L penicillin, 50 mg / L streptomycin and 215 mg / L amphotericin B under sterile conditions. The blood was washed away with saline, and then the amniotic membrane was bluntly separated from the chorion of the placenta, and spread flat on the paper sheet of surgical tissue paper (the epithelial side was facing upward). -80 ℃ 1:1 glycerol BDMEM preservation. Prenatal testing of placenta donor hepatitis B surface antigen, AIDS antigen, chlamydia, syphilis, cytomegalovirus, etc. were negative, and no history of other malignant tumors and infectious diseases.
[0061] 2. Fabrication of contact lenses
[0062] A special biological material is used to precisely process the contact lens with a CNC lathe, and at the same time, a number of micro h...
Embodiment 2
[0069] Corneal (conjunctiva) injury scarless repair devices include: amniotic membrane pretreatment methods, structures of various biological or synthetic devices including contact lenses, amnion and various biological or synthetic devices including contact lenses, etc. The bonding method of the synthetic attachment device, the preparation method of oxygen permeation and oxygen permeable hole of the corneal (conjunctival) membrane injury repair device without scar, the use method of amniotic membrane eye drops / amniotic membrane storage solution, and the medicine for treating cornea and conjunctival injury are fixed on the method on the amniotic membrane. Further: Extract amniotic membrane from human or mammalian (such as pig, horse or cow, etc.) amniotic tissue and placental tissue and biologically recombine the amniotic membrane, and combine the amniotic membrane with various biological or synthetic devices including contact lenses Through the new carrier controlled release t...
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