DUAL MEMBRANE ELECTRO-OSMOTIC FLUID DELIVERY DEVICE
First Claim
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1. A fluid delivery device, comprising:
- a fluid reservoir configured to contain a fluid to be dispensed; and
an electrochemical pump capable of applying pressure to the fluid reservoir to dispense the fluid, the electrochemical pump, comprising;
a first electrode;
a second electrode;
an anion exchange membrane; and
a cation exchange membrane.
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Abstract
Disclosed are embodiments of a fluid delivery device that combine both anionic electrokinetic and cationic electrokinetic concepts. In one illustrative embodiment, the fluid delivery device may include an electro-osmotic pump having an anion exchange membrane and a cation exchange membrane in the same device.
72 Citations
23 Claims
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1. A fluid delivery device, comprising:
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a fluid reservoir configured to contain a fluid to be dispensed; and
an electrochemical pump capable of applying pressure to the fluid reservoir to dispense the fluid, the electrochemical pump, comprising;
a first electrode;
a second electrode;
an anion exchange membrane; and
a cation exchange membrane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An implantable device for dispensing a beneficial agent, comprising:
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a first fluid reservoir having at least on e dispensing port, the first fluid reservoir configured to contain a first beneficial agent; and
an electrochemical pump to actuate the dispensing of the first beneficial agent from the first fluid reservoir, the electrochemical pump, comprising;
a first driving chamber comprising a first electrode and an anion exchange membrane; and
a second driving chamber comprising a second electrode and a cation exchange membrane. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A fluid delivery device, comprising:
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first means for driving a fluid from the delivery device;
second means for driving the fluid from the delivery device; and
means for applying pressure to the first and second driving means, wherein the means for applying pressure comprises an anion exchange membrane and a cation exchange membrane. - View Dependent Claims (20, 21, 22, 23)
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Specification