Surgery – Instruments – Light application
Patent
1992-01-15
1996-03-26
Pellegrino, Stephen C.
Surgery
Instruments
Light application
606 10, 606 12, A61B 1736
Patent
active
055016804
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.
REFERENCES:
patent: 4316467 (1982-02-01), Muckerheide
patent: 4641650 (1987-02-01), Mok
patent: 4644948 (1987-02-01), Lang et al.
patent: 4686979 (1987-08-01), Gruen et al.
patent: 4785806 (1988-11-01), Deckelbaum
patent: 5035693 (1991-07-01), Kratzer et al.
patent: 5053006 (1991-10-01), Watson
patent: 5057102 (1991-10-01), Tomioka et al.
patent: 5071417 (1991-12-01), Sinofsky
Kurtz John L.
Liang Marc D.
Narayanan Krishna
Peffley M.
Pellegrino Stephen C.
The University of Pittsburgh
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