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US 8,006,702 B2Granted
Selective photocoagulation
AssigneeThe General Hospital Corporation
InventorCharles P Lin
Life of this patent
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Abstract
A method of scanning a laser beam across a set of cells includes during a first interval, scanning a laser beam across a set of cells; and during a second interval, deflecting the laser beam away from the set of cells. The first interval is selected to cause microcavitation in at least a portion of the cells from the set of cells.
Claims22
A method of photocoagulating cells, the method comprising:
- during a first interval, scanning a laser beam across a set of cells, wherein one or more laser parameters and a length of the first interval are selected to cause microcavitation in the set of cells;
- during a second interval, deflecting the laser beam away from the set of cells;
- detecting radiation from the set of cells;
- determining an extent of the microcavitation occurring in the set of cells based on the detected radiation;
- and
- ending the first interval and beginning the second interval after a selected extent of the microcavitation has occurred in the set of cells.
3 more elements
A method of causing photocoagulation of cells, the method comprising:
- scanning a laser across a set of cells at a scanning frequency and laser power selected to cause microcavitation in the set of cells;
- detecting microcavitation in the set of cells;
- and
- terminating the scanning when a selected extent of microcavitation has occurred,
- wherein scanning the laser comprises:
- defining a first scan line;
- defining a second scan line;
- defining a third scan line disposed between the first and second scan lines;
- scanning the laser across the first scan line;
- skipping over the third scan line;
- and
- scanning the laser across the second scan line,
- whereby heat generated by scanning across the first scan line dissipates into cells located along the third scan line.
10 more elements
Dependencies are inferred from the claim text.