Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Darren Kraemer0
Michael Cowan0
Date of Patent
January 5, 2021
0Patent Application Number
155121290
Date Filed
September 18, 2015
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An apparatus for microdisruption of cataracts in lens tissue by impulsive heat deposition comprising: a source of pulsed laser radiation, a user input device, a control circuit, and an optical waveguide configured to transmit the pulsed laser radiation. The light intensity which exits the optical waveguide has a wavelength selected to match an absorption peak of at least one component of the lens tissue, a pulse duration time shorter than a time required for thermal diffusion out of the laser irradiation volume and shorter than a time required for a thermally driven expansion of the laser irradiated volume, and a pulse energy resulting in a peak intensity of each laser pulse below a threshold for ionization-driven ablation to occur.
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