Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2008-03-04
2008-03-04
DeSanto, Matthew F. (Department: 3763)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C604S892100
Reexamination Certificate
active
10626902
ABSTRACT:
The present invention relates to an implantable infusion pump having a refillable infusate reservoir in fluid communication with a delivery site via a flow path. This flow path includes a flow resistance. The infusion pump includes a sensing device(s), positioned relative to the flow path, to provide data regarding a flow rate along the flow path. The infusion pump effects a division of a total flow period into at least a plurality of unit dose periods, each unit dose period effecting delivery of a unit dose of infusate. The cumulative effect of delivering the total number of unit dose periods is the delivery of a desired dose over the total flow period. The present invention permits a reservoir pressure to vary over any portion of total flow period but effects a constant-pressure state over each unit dose cycle.
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Blischak Brian
Daglow Terry
Erickson John H.
Hooper Sandra M.
Wigness Bruce D.
Acosta Melissa
Advanced Neuromodulation Systems, Inc.
Crawford Christopher S. L.
DeSanto Matthew F.
Lando Peter
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