US 11,717,348 B2
System and method for tissue treatment
Charles Holland Dresser, Wayland, MA (US); Jayant Bhawalkar, Auburndale, MA (US); and Joseph Ting, Acton, MA (US)
Assigned to Avava, Inc., Waltham, MA (US)
Filed by Avava, Inc., Waltham, MA (US)
Filed on Nov. 4, 2020, as Appl. No. 17/89,290.
Application 17/089,290 is a continuation of application No. 16/814,340, filed on Mar. 10, 2020, granted, now 10,849,686.
Application 16/814,340 is a continuation of application No. 16/237,367, filed on Dec. 31, 2018, granted, now 10,617,468, issued on Apr. 14, 2020.
Prior Publication US 2021/0045809 A1, Feb. 18, 2021
Int. Cl. A61B 18/20 (2006.01); A61B 18/00 (2006.01); A61B 18/22 (2006.01)
CPC A61B 18/201 (2013.01) [A61B 18/203 (2013.01); A61B 2018/00005 (2013.01); A61B 2018/0047 (2013.01); A61B 2018/2015 (2013.01); A61B 2018/2253 (2017.05)] 24 Claims
OG exemplary drawing
 
1. A system comprising:
an optical element configured to receive an electromagnetic radiation (EMR), and focus the EMR along an optical axis to a focal region in a target tissue;
a controller configured to direct the focal region along a treatment path in the target tissue;
a cooling element down-beam from the optical element and configured to be removably attached to the system via three or more datums and to receive the focusing EMR, the cooling element comprising:
a first window comprising a first proximal surface and a first distal surface;
a second window down-beam from the first window, the second window comprising a second proximal surface and a second distal surface, wherein the second window is configured to contact the target tissue or a tissue adjacent to the target tissue via the second distal surface, and wherein the treatment path is parallel to the second distal surface within 50 milliradians;
a coolant chamber located between the first distal surface of the first window and the second proximal surface of the second window and configured to receive a coolant.