Collagen treatment apparatus

Details Collagen treatment apparatus Collagen treatment apparatus

A - Human Necessities

61

N

A61N 5/06 (2006.01) A61F 9/007 (2006.01) A61F 9/01 (2006.01) A61B 17/22 (2006.01)

Patent

CA 2187755

A method and apparatus for controlled thermal shrinkage of collagen tissue by irradiation with coherent energy in the wavelength band of 1.80 to 2.55 microns as generated by a laser. A specific application to ophthalmological corneal reshaping is described. A method for shrinkage of collagen tissue by application of coherent infrared energy in which the threshold shrinkage temperature is substantially reduced by application of a reagent such as lysozyme to the tissue prior to heating. The method is especially useful in ophthalmology for shape modification of a cornea, and is enhanced by using a corneal collagen shield as a carrier and delivery agent for the reagent and an admixed anaesthetic.

Procédé et appareil servant à réguler le resserrement thermique du tissu collagénique par irradiation d'une énergie cohérente dans la bande de longueur d'onde comprise entre 1,80 et 2,25 microns, telle que générée par un laser. Cette description de brevet porte sur le remodelage ophtalmologique de la cornée, et sur un procédé de resserrement du tissu collagénique par application d'une énergie infrarouge cohérente, où la température de seuil du resserrement est sensiblement réduite par application d'un réactif, tel qu'un lysozyme, sur le tissu avant de la chauffer. Ce procédé est notamment utilisé en ophtalmologie pour modifier la forme de la cornée, et il est amélioré à l'aide d'un film collagénique cornéen, tel qu'un support, et d'un agent d'application du réactif et d'un anesthésique additionnel.

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