US 10,441,463 B2
Confocal laser eye surgery system and improved confocal bypass assembly
David A. Dewey, Sunnyvale, CA (US); Georg Schuele, Portola Valley, CA (US); Noah Bareket, Saratoga, CA (US); John S. Hart, San Carlos, CA (US); Javier G. Gonzalez, Palo Alto, CA (US); Raymond Woo, Palo Alto, CA (US); Thomas Z. Teisseyre, Pacifica, CA (US); Jeffrey A. Golda, Menlo Park, CA (US); Katrina B. Sheehy, Redwood City, CA (US); Madeleine C. O'Meara, San Francisco, CA (US); and Bruce Woodley, Palo Alto, CA (US)
Filed on May 6, 2016, as Appl. No. 15/148,913.
Application 15/148,913 is a continuation in part of application No. 14/576,593, filed on Dec. 19, 2014, granted, now 10,123,696.
Claims priority of provisional application 62/043,749, filed on Aug. 29, 2014.
Claims priority of provisional application 61/970,854, filed on Mar. 26, 2014.
Prior Publication US 2016/0250068 A1, Sep. 1, 2016
Int. Cl. A61F 9/008 (2006.01); A61F 9/009 (2006.01); A61F 9/007 (2006.01); A61B 3/00 (2006.01); A61B 3/10 (2006.01); A61B 3/117 (2006.01); A61B 3/14 (2006.01)
CPC A61F 9/008 (2013.01) [A61F 9/009 (2013.01); A61F 9/00754 (2013.01); A61F 9/00825 (2013.01); A61B 3/0025 (2013.01); A61B 3/1025 (2013.01); A61B 3/1173 (2013.01); A61B 3/14 (2013.01); A61F 2009/00844 (2013.01); A61F 2009/00878 (2013.01); A61F 2009/00882 (2013.01); A61F 2009/00897 (2013.01)] 21 Claims
OG exemplary drawing
1. A method of operating a laser surgical system, the method comprising:
using a beam source to generate an electromagnetic beam;
propagating the electromagnetic beam from the beam source to a scanner along an optical path, the optical path comprising a first optical element that attenuates the electromagnetic beam, the first optical element being positioned between the beam source and the scanner;
focusing the electromagnetic beam to a focal point at a location within the eye;
using the scanner to scan the focal point to different locations within the eye;
propagating a portion of the electromagnetic beam reflected from the focal point location back along the optical path to the first optical element, the first optical element diverting a portion of the reflected electromagnetic radiation to a sensor;
using the sensor to generate an intensity signal indicative of an intensity of a portion of the electromagnetic beam reflected from the focal point location and propagated to the sensor via the first optical element; and
reversibly inserting a confocal bypass assembly into the optical path, diverting the electromagnetic beam along a diversion optical path around the first optical element,
wherein the confocal bypass assembly automatically exits the optical path when a power loss occurs to one or more components of the laser surgical system.