Appeal No. 95-0065
Application 07/568,348
The accompanying Figure 1, like appellant's Fig. 1, plots the
absorption in water versus various wavelengths. Two peaks
appear to be shown in the wavelength range claimed by
appellant: one at about 1.4 µm, the other at about 1.9 µm.
Both peaks are less than the absorption shown for a CO laser
2
(10.6 µm), and considerably less than the maximum absorption
shown at the peak disclosed by Wolbarsht as being "near 2.8
µm."
The Horn article concerns the use of a laser for use
in ophthalmology, specifically, for capsulotomy. Horn 5
discloses that a wavelength better suited for lens capsulotomy
is an infrared laser operating in the 1200-1300 nm (1.2 to 1.3
µm) wavelength region. The laser may be a frequency-doubled
neodymium-YAG laser; also (page 338, second column):
A second generation laser, the erbium
yttrium lithium fluoride (erbium-YLF)
laser,
has recently been developed. It produces
short pulses at a wavelength of 1228 nm,
and is lightweight and compact.
5 Stedman's Medical Dictionary (24th Ed., 1982) defines
"capsulotomy" as "[i]ncision through a capsule, specifically,
the capsule of the lens in the extracapsular cataract
operation."
6
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