Cutting blade assembly for a microkeratome

Details Cutting blade assembly for a microkeratome Cutting blade assembly for a microkeratome

A - Human Necessities

61

B

A61B 17/32 (2006.01) A61B 5/107 (2006.01) A61F 9/013 (2006.01)

Patent

CA 2410384

A blade assembly (10) that can be assembled into a microkeratome (12) which is used to cut a cornea. The blade assembly (10) is constructed in a manner that minimizes the tolerance of the cutting depth into the cornea. The blade assembly (10) includes a blade holder (36) that can be pressed onto a blade (38). The relative position of the blade holder (36) can be calibrated to control the distance between a reference surface of the blade holder (36) and the cutting edge (40) of the blade (38). The distance defines the cutting depth of the blade (36). The blade holder (36) is coupled to the blade (38) with an interference fit that both secures the holder (36) while providing for calibration of the assembly (10).

La présente invention concerne un ensemble lame de coupe (10) pouvant être fixé à un microkératome (12) utilisé pour l'ablation de la cornée. L'ensemble lame (10) est conçu de façon à réduire au minimum la tolérance de la profondeur de coupe dans la cornée. L'ensemble lame (10) comprend un support de lame (36) qui peut être enfoncé dans une lame (38). La position relative du support de lame (36) peut être corrigée pour réguler l'espacement entre une surface de référence du support de lame (36) et le bord de coupe (40) de la lame (38). Cet espacement définit la profondeur de coupe de la lame (36). Le support de lame (36) est couplé à la lame (38) avec un ajustement serré qui fixe le support (36) tout en permettant de calibrer l'ensemble (10).

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