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    42.
    发明专利
    未知

    公开(公告)号：DE69122349D1

    公开(公告)日：1996-10-31

    申请号：DE69122349

    申请日：1991-10-16

    Applicant: SUMMIT TECHNOLOGY INC

    Inventor： SEILER THEO

    IPC: A61B18/20 ,  A61F9/00 ,  A61F9/01 ,  A61F9/013 ,  A61N5/06

    Abstract: Methods and apparatus for correction of optical defects in vision, employing an infrared radiation source and a focusing element, for changing the curvature of the eye (10) by application of focused infrared radiation (41) into the collagenous tissue (44) of the cornea (12) in a controlled manner.

    Removal of epithelium from the eye
    47.
    发明专利
    Removal of epithelium from the eye 未知

    公开(公告)号：AU4385093A

    公开(公告)日：1993-12-13

    申请号：AU4385093

    申请日：1993-05-20

    Applicant: SUMMIT TECHNOLOGY INC

    Inventor： KLOPOTEK PETER J

    IPC: A61B17/32 ,  A61F9/013 ,  A61F2/14

    Abstract: A method and device for lifting the epithelium from a selected area of the eye using an incision instrument for cutting the epithelium to define an area of the epithelium to be removed, and a fluid jet assembly for separating the selected area of the epithelium from the underlying layer. The incision instrument shown has a series of incision elements distributed about a peripheral pattern, arranged to cut the epithelium in the direction of its thickness without disturbing the underlying layer, to create a tear line. The jet assembly directs through the tear line a fluid jet in the manner that the fluid progresses inwardly from the tear line and effectively wedges the epithelium from the underlying layer. The device shown also has an epithelium support structure for engaging the exterior surface of the delineated area of the epithelium in order to support and maintain the structural integrity of the lifted epithelium. The lifted epithelium can be biologically preserved and repositioned after a medical procedure is conducted on the exposed surface of the eye. Isotonic fluids for maintaining the biological balance of the eye tissue and use of softening agents for aiding in the release of scarred or tenaciously held epithelium are also disclosed.

    CORNEAL TREATMENT AGENTS
    48.
    发明专利
    CORNEAL TREATMENT AGENTS 未知

    公开(公告)号：CA2066842A1

    公开(公告)日：1992-10-24

    申请号：CA2066842

    申请日：1992-04-22

    Applicant: SUMMIT TECHNOLOGY INC

    Inventor： MULLER DAVID F

    IPC: A61K9/08 ,  A61K31/045 ,  A61P27/02

    Abstract: Aliphatic alcohols are disclosed for the treatment of discomfort and visual artifacts following laser surgical procedures on the cornea of the eye. Such compositions reduce the inflammation associated with photorefractive keratectomy and promote the regrowth of epithelial tissue over the reprofiled corneal surface.

    SURFACE SHAPING USING LASERS
    50.
    发明专利
    SURFACE SHAPING USING LASERS 未知

    公开(公告)号：AU7160687A

    公开(公告)日：1987-10-09

    申请号：AU7160687

    申请日：1987-03-19

    Applicant: SUMMIT TECHNOLOGY INC

    Inventor： RAVEN ANTONY LOVELL ,  MARSHALL JOHN ,  MULLER DAVID F

    IPC: A61F9/00 ,  A61B17/30 ,  A61F9/008 ,  A61F9/009 ,  A61F9/01 ,  B23K26/00 ,  B23K26/06

    Abstract: A laser system and masking apparatus for reprofiling surfaces, such as corneal surfaces. The system includes a laser and a mask disposed between the laser and the surface to be reprofiled, the mask providing a pre-defined profile of resistance to laser radiation, such that upon irradiation, part of the radiation is selectively absorbed and part is transmitted to the surface in accordance with the masked profile, to selectively erode the surface. The masking apparatus may consist of a mask to be affixed to the surface or may further include a support structure to support and position the mask above the surface. The resistance profile can be created by varying the thickness or the composition of the mask.

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