Patent ID: 11890448
Assignee: DEKA PRODUCTS LIMITED PARTNERSHIP
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 3:
4. A shape-memory alloy wire pumping system comprising:
a plurality of shape-memory alloy wires;
a pump plunger connected to at least one of the shape-memory alloy wires wherein the shape-memory alloy wire, when actuated, actuates the pump plunger;
a first valve member connected to at least one of the shape-memory alloy wires wherein the shape-memory alloy wire, when actuated, actuates the first valve member;
a second valve member connected to at least one of the shape-memory alloy wires wherein the shape-memory alloy wire, when actuated, actuates the second valve member;
a reservoir upstream from the first valve member, wherein the first valve member controls the flow of fluid from a reservoir to an exit;
a controller for controlling an ontime of the shape-memory alloy wires; and
a temperature sensor for determining the temperature of at least one of the shape-memory alloy wires wherein the controller determines the ontime based on the temperature of the shape-memory alloy wire.