(i9) United States
(12) Patent Application Publication
Weir et al.
(io) Pub. No.: US 2009/0062659 Al (43) Pub. Date: Mar. 5, 2009
(54) MEDICAL DEVICE INCLUDING SCANNED BEAM UNIT WITH OPERATIONAL CONTROL FEATURES
Michael P. Weir, Loveland, OH
(US); Robert J. Dunki-Jacobs,
Mason, OH (US); Robert M.
Trusty, Cincinnati, OH (US)
A method of controlling a medical device is provided. The method includes generating a beam of radiation using a radiation source assembly. The beam of radiation is directed toward a distal end of the medical device using an optical fiber. The beam of radiation is directed onto an area of interest by scanning the reflector in a scanning pattern, the reflector receiving the beam of radiation from the optical fiber. Radiation is collected from the area of interest using a collector to generate a signal for use in producing a viewable image. A loss of scan condition of the reflector is detected automatically by a control system.