Surgery – Instruments – Light application
Patent
1993-12-02
1994-12-06
Pellegrino, Stephen C.
Surgery
Instruments
Light application
606 2, 606 15, 385124, 385117, A61B 1736, G02B 618
Patent
active
053706439
ABSTRACT:
It is the object of this invention to provide a new and highly flexible medical laser delivery device and system with the abilty to change the radiation pattern delivered without the need to change or modify the output end or output optics. The output optics or output end is frequently embodied in the body and/or is sterile and its change or modification or the change of the whole delivery device during the procedure is undesirable. Changing the input pattern while using conventional step index fibers cannot achieve the required result of control of the output pattern in a reliable manner because of beam spreading over the length of the device. The light becomes diffused over the length of the conventional step index fiber. It is therefore another object of the present invention to specify the requirements for the transmission fiber employed in the device and a method of making same. Still another object of the invention is to achieve effective feedback control for the laser delivery device to control such important parameters as power output and output pattern.
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Krivoshlykov Sergei G.
Neuberger Wolfgang
CeramOptec, Inc.
Driscoll Stephen J.
Ferrone Diane L.
Glynn Kenneth P.
Peffley Michael
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