US Patent No. 10,441,463

CONFOCAL LASER EYE SURGERY SYSTEM AND IMPROVED CONFOCAL BYPASS ASSEMBLY


Patent No. 10,441,463
Issue Date October 15, 2019
Title Confocal Laser Eye Surgery System And Improved Confocal Bypass Assembly
Inventorship 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)
Bruce Woodley, Palo Alto, CA (US)
Assignee OPTIMEDICA CORPORATION, Santa Ana, CA (US)

Claim of US Patent No. 10,441,463

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.