Abstract: An SMA actuated capsule micropump is provided having a linear actuation which leads to large deflection, high discharge volume, and high static head pressure. The pump is designed for drug delivery applications by introducing a replaceable capsule reservoir and controlling the drug's delivery at a constant dose and a constant static head pressure. The device has a wide range of flow rates (from less than 2 to more than 2500 ?L/min) that would be suitable for a broad range of drug delivery applications. Also, the pump has a wide range of pressures up to 14 kPa (105 mmHg) that are possible, which well exceeds the back pressure of most of the superficial veins typically utilized for intravenous drug delivery, without compromising the suitability for transdermal drug delivery.

Abstract: An SMA actuated capsule micropump is provided having a linear actuation which leads to large deflection, high discharge volume, and high static head pressure. The pump is designed for drug delivery applications by introducing a replaceable capsule reservoir and controlling the drug's delivery at a constant dose and a constant static head pressure. The device has a wide range of flow rates (from less than 2 to more than 2500 ?L/min) that would be suitable for a broad range of drug delivery applications. Also, the pump has a wide range of pressures up to 14 kPa (105 mmHg) that are possible, which well exceeds the back pressure of most of the superficial veins typically utilized for intravenous drug delivery, without compromising the suitability for transdermal drug delivery.