Photodisruptive laser fragmentation of tissue
AssigneeAlcon LenSx, Inc.
InventorFerenc Raksi
Life of this patent
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Abstract
A method of photodisruptive laser surgery includes selecting a target region of a tissue for fragmentation, directing a beam of laser pulses to the selected target region of the tissue, and forming cells in the target region of the tissue by directing the laser beam to generate cell boundaries. The cells can be arranged in regular or irregular arrays. The cells can be generated in parallel or successively, with cell sizes and laser parameters which reduce the time of ophthalmic surgery considerably.
Claims14
A method of fragmenting lens tissue of an eye with a laser surgical system, the method comprising:
- generating a pulsed laser beam with a pulsed laser;
- directing the laser beam with an optics module towards a target region in the lens tissue;
- and
- controlling the optics module by a system control module to form a regular array of cells in the target region by creating layers of photodisrupted bubbles to generate cell boundaries, wherein
- the layers are created by scanning the pulsed laser with the optics module according to a curvature of the focal plane of the optics module to track the natural curvature of the lens.
A method of fragmenting lens tissue with a laser surgical system, the method comprising:
- generating a pulsed laser beam with a pulsed laser;
- directing the pulsed laser beam with an optics module towards a target region in the lens tissue;
- and
- controlling the optics module by a system control module to form a regular array of cells in the target region by creating layers of photodisrupted bubbles to generate cell boundaries, wherein
- a size of the cells is suitable for extraction by aspiration without additional lens fragmentation;
- and
- walls of individual cells include photodisrupted bubbles other than corner bubbles of the cell, wherein the regular array of cells further comprises individual cells having walls that include photodisrupted bubbles to generate the cell boundaries.
Dependencies are inferred from the claim text.