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US 2004/0249365 A1Published application
Implantable osmotic pump
AssigneeMicroSolutions, Inc.
InventorsDerek J. Harper, Charles F. Milo
Life of this patent
Estimating the term…
Abstract
A pump, includes a pump engine; a compartment adapted to store a fluid, the compartment being disposed at least partially around the pump engine, and a piston disposed within the compartment, the compartment and the engine being configured to cause the piston to travel within the compartment along an arcuate path and to force a volume of the fluid out of the pump.
Claims43
An implantable osmotic pump for delivering a pharmaceutical agent to a patient, comprising:
- a catheter;
- an osmotic engine;
- a pharmaceutical agent compartment;
- a volume of pharmaceutical agent that includes Sufentanil within the pharmaceutical agent compartment, and
- a piston disposed within the compartment, the compartment being configured such that the osmotic engine causes the piston to travel within the compartment along an arcuate path and deliver the pharmaceutical agent through the catheter when the pump is implanted in the patient, wherein the pump is configured for:
- a daily delivery rate of Sufentanil of up to about 125 micrograms per day when the catheter is placed intraventricularly;
- a daily delivery rate of Sufentanil of up to about 250 micrograms per day when the catheter is placed intrathecally;
- a daily delivery rate of Sufentanil of up to about 750 micrograms per day when the catheter is placed epidurally;
- a daily delivery rate of Sufentanil of up to about 1500 micrograms per day when the catheter is placed subcutaneously, and
- a daily delivery rate of Sufentanil of up to about 1500 micrograms per day when the catheter is placed intravascularly.
7 more elements
A method of delivering a pharmaceutical agent to a patient, comprising steps of:
- implanting a pump into the patient, the pump including a pump engine and a compartment adapted to store a pharmaceutical agent, and
- causing a piston to travel a distance within the compartment along an arcuate path and to deliver a dose of pharmaceutical agent out of the compartment.
A pump, comprising:
- a pump engine;
- a compartment adapted to store a fluid, the compartment being disposed at least partially around the pump engine, and
- a piston disposed within the compartment, the compartment and the engine being configured to cause the piston to travel within the compartment along an arcuate path and to force a volume of the fluid out of the pump.
Dependencies are inferred from the claim text.