Avava, Inc.

Rajender Katkam

Jayant D Bhawalkar

Charles Holland Dresser

Lewis J Levine

According to some embodiments, a system for fractionally treating tissue includes: an electromagnetic radiation (EMR) source configured to generate an EMR beam having a transverse ring energy profile; an optic configured to converge the EMR beam to a focal region located within a tissue; and, a window assembly located down-beam from the optic configured to cool the tissue when placed in contact with an outer surface of the tissue.

Feedback detection for a treatment device

A system includes a focus optic configured to converge an electromagnetic radiation (EMR) beam to a focal region located along an optical axis. The system also includes a detector configured to detect a signal radiation emanating from a predetermined location along the optical axis. The system additionally includes a controller configured to adjust a parameter of the EMR beam based in part on the signal radiation detected by the detector. The system also includes a window located a predetermined depth away from the focal region, between the focal region and the focus optic along the optical axis, wherein the window is configured to make contact with a surface of a tissue.

A method includes generating a plurality of primary beams from a laser beam, and generating, from a primary beam one or more secondary beams. The method also includes focusing the first secondary beam to a first focal region in the target tissue and the second secondary beam to a second focal region in the target tissue. The first focal region and the second focal region can be located at different depths in the target tissue.

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Rajender Katkam