Surgery – Truss – Pad
Patent
1988-01-19
1989-11-14
Hindenburg, Max
Surgery
Truss
Pad
128395, A61B 1736
Patent
active
048800015
ABSTRACT:
A process to control the extent of photocoagulation of the retina wherein light reflected from discrete portions (Ti) of the retina (75) in the eye is projected by a lens system (82) to individual photodiodes (DI) in an array (85) to generate electrical signals related to the light intensity reflected from a corresponding portion (Ti) on the retina (75) being treated. A change in the reflectance of any discrete portion (Ti) of an area on the retina relative to the reflectance of any discrete portion of the area on the retina actuates a control mechanism associated with laser (22). Upon a change to a threshold reflectance or a maximum rate of change in reflectance, a control apparatus (90) automatically adjusts parameters of treatment including power (22), focus (25) or sighting (102, 104).
REFERENCES:
patent: 3720213 (1973-03-01), Hobart et al.
patent: 3806829 (1974-04-01), Duston et al.
patent: 4266549 (1981-05-01), Kimura
patent: 4316467 (1982-02-01), Muckerheide
patent: 4438765 (1984-03-01), Wilinsky
patent: 4564012 (1986-01-01), Shimada et al.
"Process for Automatic Sensing of Thermal Effects of Laser Beams and Arrangement for Implementation of the Process", Halldorsson et al., (Translation), 1980.
Hindenburg Max
Promed Technology, Inc.
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