FLUID DELIVERY DEVICE HAVING AN ELECTROCHEMICAL PUMP WITH AN ION-EXCHANGE MEMBRANE AND ASSOCIATED METHOD
First Claim
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1. A fluid delivery device, comprising:
- an electrochemical pump for transporting water;
an electrochemical pump product chamber being capable of retaining water transported by the electrochemical pump;
a reservoir being capable of containing a fluid to be delivered;
a displaceable member positioned between the electrochemical pump product chamber and the reservoir, wherein the displaceable member is responsive to transporting water;
a controller operably connected to the electrochemical pump wherein a rate of water transport being responsive to electrical current flowing through the control circuit; and
, a housing containing the electrochemical pump, the electrochemical pump product chamber, the displaceable member, and the reservoir therein.
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Abstract
The present invention is directed to an apparatus and method for controllably adjusting a fluid delivery device. The device includes an electrochemical pump capable of transporting a fluid. A displaceable member is positioned between a pump product chamber and a reservoir, wherein the pump product chamber is capable of retaining water generated from the pump. The displaceable member is controllably displaced upon generation of water from the electrochemical pump and the reservoir contains the fluid that is delivered upon displacement of the displaceable member.
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Citations
48 Claims
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1. A fluid delivery device, comprising:
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an electrochemical pump for transporting water;
an electrochemical pump product chamber being capable of retaining water transported by the electrochemical pump;
a reservoir being capable of containing a fluid to be delivered;
a displaceable member positioned between the electrochemical pump product chamber and the reservoir, wherein the displaceable member is responsive to transporting water;
a controller operably connected to the electrochemical pump wherein a rate of water transport being responsive to electrical current flowing through the control circuit; and
,a housing containing the electrochemical pump, the electrochemical pump product chamber, the displaceable member, and the reservoir therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A fluid delivery device capable of being implanted within a body, the fluid delivery device comprising:
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an electrochemical pump for transporting water;
a control circuit including an output signal, the control circuit being operably connected to the electrochemical pump wherein a rate of water transport being responsive to electrical current flowing through the control circuit;
an active electrode and an auxiliary electrode being in ionic communication with each other and operably connected to the control circuit;
a reservoir being capable of containing a fluid to delivered;
a displaceable member positioned between the electrochemical pump product chamber and the reservoir, wherein the displaceable member is responsive to transporting water;
an ion-exchange membrane positioned between the active electrode and the auxiliary electrode, the ion-exchange membrane being sealed to the active electrode chamber and facilitating movement of the displaceable member in response to transport of transporting water;
at least one protective porous separator being permeable to H2O molecules or saline and positioned such that either electrode or the ion-exchange membrane is indirectly exposed to the body tissue or body fluids; and
,a housing containing the electrochemical pump, the displaceable member, and the reservoir therein, wherein the auxiliary electrode is external to the housing. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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Specification