Abstract: A laser surgery system includes a light source, an eye interface device, a scanning assembly, a confocal detection assembly and preferably a confocal bypass assembly. The light source generates an electromagnetic beam. The scanning assembly scans a focal point of the electromagnetic beam to different locations within the eye. An optical path propagates the electromagnetic beam from a light source to the focal point, and also propagates a portion of the electromagnetic beam reflected from the focal point location back along at least a portion of the optical path. The optical path includes an optical element associated with a confocal detection assembly that diverts a portion of the reflected electromagnetic radiation to a sensor. The sensor generates an intensity signal indicative of intensity the electromagnetic beam reflected from the focal point location. The confocal bypass assembly reversibly diverts the electromagnetic beam along a diversion optical path around the optical element.
Type:
Grant
Filed:
December 19, 2014
Date of Patent:
November 13, 2018
Assignee:
OPTIMEDICA CORPORATION
Inventors:
Georg Schuele, Noah Bareket, David Dewey, John S. Hart, Javier G Gonzalez, Raymond Woo, Thomas Z Teisseyre, Jeffrey A Golda, Katrina B Sheehy, Madeleine C O'Meara, Bruce Woodley
Abstract: A non-invasive method for determining the tissue perfusion state in a patient, by measuring the variations in the skin CO2 pressure and in the perfusion index of the patient during the conducting of a localized hyperthermia test.
Type:
Grant
Filed:
February 5, 2014
Date of Patent:
April 17, 2018
Assignee:
Assistance Publique—Hopitaux de Paris
Inventors:
Fabrice Vallee, Joaquim Mateo, Didier Payen De La Garanderie