... or blue sapphire Smart and flexible Product name Ophthalmic knifeSales points1) sapphire blade/black diamond instead of ... Key wordsSurgical blades, disposable scalpels, biopsy punch, ophthalmic knives, blood lancet, stich cutter, skin grafting knife, curette ... dermal, ophthalmic knife, eye operation instrument, eye disposable knife, ophthalmic knife, eye operation knife, ...