Interference No. 103,197
Falkowski testified that91
Dr. Morrison stuck two hypodermic needles parallel into
the tissue, fed the emitting and receiving fibers into
the hypodermic needles until they touched the tissue and
finally optionally removed the fiber. Thus, he
positioned the ends of the optical fibers 1 mm apart
having tissue between the ends of the fibers. When we
repeated the experiment here, we got under optimal
coupling conditions less than 3 nW through the tissue.
This is the resolution lower limit of our big R & D pulse
oximetry device.
By "lower limit" Falkowski apparently means the minimum
acceptable amplitude for modulated (i.e., AC and DC) red and
infrared light components produced when actually measuring the
transmission of light through pulsatile tissue. Falkowski
further explained that92
From additional experiments we guess that the light
intensity was not even 300 FW [sic, FFW]. If this is
compared to the shunt light of 18 nW respectively 33 nW
[sic, 18 nW red and 33 nW infrared], the DC [shunt light]
is in the range of 60 to 100 fold that of the light
transmitted through the tissue. . . .
While Morrison faults Falkowski's tests for using steak
instead of live tissue, he did not explain, and it is not93
apparent to us, why this would invalidate the foregoing test
BR 25-26, ¶ d.91
BR 26, ¶ e.92
Morr.Open.Br. 37.93
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