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:
Mar. 26, 1996
Filed:
Jan. 15, 1992
John L Kurtz, Indiana, PA (US);
Marc D Liang, Pittsburgh, PA (US);
Krishna Narayanan, Pittsburgh, PA (US);
The University of Pittsburgh, Pittsburgh, PA (US);
Abstract
A laser operation and control system preferably comprising a laser adapted to be grasped by a user and freely passed over a treatment area, control circuitry for activating and deactivating the laser, at least one boundary sensor operable to transmit a signal to the control circuitry to deactivate the laser upon passage thereof beyond a boundary of the treatment area and to transmit a signal to the control circuitry to activate the laser upon passage thereof within the boundary, and at least one proximity sensor for transmitting a signal to the control circuitry to deactivate the laser should the proximity sensor fail to sense a substantially solid surface within a predetermined distance therefrom and for transmitting a signal to the control circuitry to activate the laser should the proximity sensor sense such a surface.