Loading patent…
AssigneeAdvanced Neuromodulation Systems, Inc.
InventorsBrian Blischak, John H. Erickson, Terry Daglow, Sandra Marie Hooper, Bruce David Wigness
Estimating the term…
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.
A method of controlling infusate output from an implantable infusion device for a prescribed dose period, the device having a collapsible infusate chamber, an energy source to collapse the chamber, and an outlet flow path extending between the chamber and a device outlet, wherein the outlet flow path includes a restrictor and a valve to selectively and at least partially occlude the outlet flow path, comprising the steps of:
A method of controlling infusate output from an implantable infusion device for a prescribed dose period, the device having a collapsible infusate chamber, an energy source to collapse the chamber, and an outlet flow path extending between the chamber and a device outlet, wherein the outlet flow path includes a restrictor and a valve to selectively and at least partially occlude the outlet flow path, comprising the steps of:
A method of controlling infusate output from an implantable infusion device for a prescribed dose period, the device having a collapsible infusate chamber, an energy source to collapse the chamber, and an outlet flow path extending between the chamber and a device outlet, wherein the outlet flow path includes a restrictor and a valve to selectively and at least partially occlude the outlet flow path, comprising the steps of:
A method of controlling infusate output from an implantable infusion device for a prescribed dose period, the device having a collapsible infusate chamber, an energy source to collapse the chamber, and an outlet flow path extending between the chamber and a device outlet, wherein the outlet flow path includes a restrictor and a valve to selectively and at least partially occlude the outlet flow path, comprising the steps of:
A method of controlling infusate output from an implantable infusion device for a prescribed dose period, the device having a collapsible inflisate chamber, an energy source to collapse the chamber, and an outlet flow path extending between the chamber and a device outlet, wherein the outlet flow path includes a restrictor and a valve to selectively and at least partially occlude the outlet flow path, comprising the steps of:
A method of controlling infusate output from an implantable infusion device for at least one prescribed dose period, the device having a collapsible infusate chamber, an energy source to collapse the chamber, and an outlet flow path extending between the chamber and a device outlet, wherein the outlet flow path includes a restrictor and a valve to selectively and at least partially occlude the outlet flow path, comprising the steps of:
Dependencies are inferred from the claim text.