Interference No. 103,197
what the term "T.C." represents, it is apparent from the64
description of the "2nd Generation Probe" at page 4 as "EKG +
Oximeter + ThermoCouple + pH" that T.C. refers to a
thermocouple. Pages 3 and 5 of the exhibit show that the65
"1st Generation Probe" can be a formed as a disposable unit
connectable by an adapter to a "Standard oximeter - Nellcor,
etc." and to a "Conventional Fetal Monitor (EKG)."
Referring to page 4, as already noted, the "2nd
Generation Probe" is described as being for "EKG + Oximeter +
ThermoCouple + pH." The top sketch and associated notation
indicate that pH is to be measured by light passing through a
pH sensitive dye (HPTS), whose absorption characteristics are
very pH sensitive. The bottom two sketches show that a
hypodermic needle that contains, in addition to an "oximeter
fiber," a chamber containing pH sensitive dye, a semi-
permeable barrier wall for contact with the tissue, and two
elements labeled "light in" and "light out," which Ted Johnson
MR 505:4-5.64
Ted Johnson’s testimony corroborates the existence of65
the pages of this exhibit on November 24, 1987. It is not
necessary for him to testify that he understood the contents
of the drawing. See Price v. Symsek, 988 F.2d 1187, 1195, 26
USPQ2d 1031, 1037 (Fed. Cir. 1993).
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