Appeal No. 95-3830
Application No. 07/942,460
clearance.
The claimed invention requires a measurement means for
measuring data corresponding to at least one physicochemical
characteristic of a fresh dialysis liquid and at least one
physicochemical characteristic of a used liquid. In that
connection, the examiner found the following in Shouldice et al.
(answer at 3):
Sensor 94 measures pressure of inlet dialyzate which
corresponds to the physicochemical characteristic of
the fresh dialyzate. Sensor 96 measures pressure of
used liquid which corresponds to the physicochemical
characteristic of dialysis containing the impurity
"ultrafiltrate" from the blood. (Emphasis in
original.)
Because the appellant has not specifically challenged or disputed
the examiner's treating pressure as a physicochemical
characteristic of a liquid, we will regard the measuring means
feature as having been met by Shouldice et al.
What the appellant does argue is that the measured data on
the dialysis liquid pressure would not permit a computation means
to "calculate a clearance value for a type of impurity," and that
Shouldice et al. further does not disclose any controlling
function based on a comparison between the calculated clearance
and a predetermined clearance for an impurity. We agree with the
appellant.
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