Laser welding system
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United States of America Patent
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Sep 2, 1997
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N/A
app pub date -
Sep 28, 1994
filing date -
Sep 28, 1994
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Abstract
A laser welding apparatus and system for surgically bonding tissue together provides a beam of coherent light at a wavelength corresponding to a specific tissue thickness at which full absorption of the laser energy occurs, and adjusts the energy of the laser beam in response to tissue temperature throughout the tissue thickness to prevent the tissue temperature from either exceeding a predetermined limit or varying outside a predetermined range. Preferably, the coherent light beam has a center wavelength of 1.9 .mu.m, and is variable between 1.85 and 1.91 .mu.m.
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