Appeal No. 96-2179 Page 3
Application 07/613,466
3. At the hearing, counsel confirmed that Pacesetter
Inc. is the real party in interest.
4. The application is entitled "Rate-responsive
pacemaker with closed-loop control". The subject matter of
the invention is means and steps for regulating pacing with
respect to a measured rate control parameter (MRCP) and
adjusting the pacing rate to account for variations in the
MRCP. Claims 38 and 49 (Paper 17 (Prelim. Amdt.) at 2-3)
illustrate the subject matter of the invention:
38. A method of controlling rate-responsive
pacing comprising the steps of periodically
ascertaining the value of a rate control parameter
"RCP" to obtain a measured rate control parameter
"MRCP", said RCP being such that a measured value
thereof is changed in one direction by increases in
stress/exercise and in an opposite direction by
increases in heart rate, generating pacing pulses at
a pacing rate, deriving a target value "target"
which is indicative of changes in said MRCP due to
non-stress/exercise and non-heart rate factors, and
responsive to a change in the difference between
MRCP and target adjusting said pacing rate in a
direction which tends to return said difference to
its pre-change value.
49. A method of controlling rate-responsive
pacing comprising the steps of generating pacing
pulses at a pacing rate, ascertaining the value of a
rate control parameter "RCP", utilizing closed-loop
control for adjusting said pacing rate in accordance
with the value of said RCP, and causing said closed-
loop control to self-adapt to changes in the value
of said RCP which are due to factors other than
stress, exercise and heart rate.
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