Segmented preformed intrastromal corneal insert

Details Segmented preformed intrastromal corneal insert Segmented preformed intrastromal corneal insert

A - Human Necessities

61

F

A61F 2/14 (2006.01) A61F 9/00 (2006.01)

Patent

CA 2168347

This invention is a preformed intra-stromal corneal insert (812, 814). It is made of a physiologically compatible polymer and may be used to adjust corneal curvature and thereby correct vision abnormalities. The insert of segment (812,814-) may also be used to deliver therapeutic or diagnostic agents to the interior of the cornea, or of the eye. The insert (812, 814) subtends only a portion of aring or "arc", encircling the anterior cornea outside of the cornea's field of view. The invention also includes a procedure for inserting the device into the cornea.

L'invention concerne un insert préformé (812, 814) destiné au stroma cornéen et constitué d'un polymère physiologiquement compatible, qui permet d'ajuster la courbure de la cornée et donc de corriger des anomalies de vision. Cet insert ou segment (812, 814) permet aussi de libérer des agents thérapeutiques ou diagnostiques à l'intérieur de la cornée ou de l'oeil. L'insert (812, 814) sous-tend seulement une portion d'un anneau ou "arc" qui encercle la cornée antérieure, hors du champ de vison propre à cette cornée. L'invention porte aussi sur une procédure permettant d'insérer un tel dispositif dans la cornée.

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