The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2015
Filed:
Jun. 30, 2005
Thomas H. Foster, Rochester, NY (US);
William J. Cottrell, Dallas, TX (US);
Chad Bigelow, Somerville, MA (US);
Allan R. Oseroff, Buffalo, NY (US);
Thomas H. Foster, Rochester, NY (US);
William J. Cottrell, Dallas, TX (US);
Chad Bigelow, Somerville, MA (US);
Allan R. Oseroff, Buffalo, NY (US);
University of Rochester, Rochester, NY (US);
Abstract
An instrument for photodynamic therapy applies treatment light from a dye laser, white light, and ultraviolet fluorescence excitation light from an LED onto a lesion and surrounding areas in a time-multiplexed manner. The reflected white light is analyzed in a spectrometer to determine a correction for the dynamic optical spectral properties of the patient's tissue. Light emitted by fluorescence from the lesion and the surrounding areas is analyzed in another spectrometer, and the results are corrected in a computer, using the correction. An optical switch has been developed for the instrument, using a bistable solenoid and a sled.