Corneal mask formed of degradation resistant polymer

A - Human Necessities – 61 – L

Patent

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Details

A61L 27/16 (2006.01) A61F 9/007 (2006.01)

Patent

CA 2614536

Disclosed are masks (34) configured to be implanted in a cornea of a patient. In one embodiment, the body of the mask has a light transmitting portion (38) , a light blocking portion disposed about the light transmitting portion, and an outer periphery surrounding the light blocking portion (36) . The mask is adapted to reside between two intracorneal layers of a cornea. In a preferred embodiment, the mask is formed from a material comprising a highly fluorinated polymeric material and an opacification agent and is resistant to degradation upon exposure to ultraviolet light. In another embodiment, the mask is formed from a material which comprises a polyanionic compound. In some embodiments, the mask includes one or more wound healing modulator compounds to aid in proper healing following implantation.

La présente invention concerne des masques configurés pour s'implanter dans la cornée d'un patient. Dans un mode de réalisation, le corps du masque comporte une partie transparente, une partie arrêtant la lumière disposée autour de la partie transparente, et une périphérie externe entourant la partie arrêtant la lumière. Ce masque est conçu pour demeurer entre deux couches intracornéennes de la cornée. Dans un mode de réalisation préféré, le masque est en matériau comprenant un polymère hautement fluoré et un opacifiant. Il est résistant à la dégradation par exposition aux UV. Dans un autre mode de réalisation, le masque et en matériau comprenant un composé polyanionique. Dans certains modes de réalisation, le masque comporte un ou plusieurs composés modulateurs guérissant les lésions pour favoriser une bonne guérison après implantation

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