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US 2011/0301539 A1Published application
Fill and purge system for a drug reservoir
OwnerMatthew J.A. Rickardinventor
Life of this patent
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Abstract
A fill and purge system for a drug reservoir is disclosed. The fill and purge system comprises a positive pressure source, a negative pressure source, a first valve, a second valve, and a delivery channel. The positive pressure source is fluidly connected to the first valve. The negative pressure source is fluidly connected to the second valve. The first and second valves are fluidly connected to the delivery channel. A method of filling and purging a drug reservoir is also disclosed.
Claims22
A fill and purge system for a drug reservoir, comprising:
- a positive pressure source;
- a negative pressure source;
- a first valve;
- a second valve;
- and
- a delivery channel;
- wherein the positive pressure source is fluidly connected to the first valve and the negative pressure source is fluidly connected to the second valve;
- and
- wherein the first and second valves are fluidly connected to the delivery channel.
6 more elements
A method of filling and purging a drug reservoir, comprising:
- providing positive and negative pressure sources that are operatively connected to a first opening of a delivery channel, wherein the positive pressure source is fluidly connected to a first check valve and the negative pressure source is fluidly connected to a second check valve;
- providing a source of material to be disposed within the drug reservoir, wherein the source of the material is fluidly connected to the positive pressure source and is positioned downstream of the first check valve;
- positioning the delivery channel so as to have a second opening thereof in communication with the drug reservoir;
- activating the positive pressure source to direct the material in a first direction, through the first check valve to the delivery channel such that the material is deposited into the drug reservoir;
- and
- activating the negative pressure source that is operatively connected to a storage chamber to direct material disposed within the drug reservoir through the delivery channel in a second direction, through the second check valve and into the storage chamber.
3 more elements
Dependencies are inferred from the claim text.