| 主权项 |
1. A micropump for delivering a fluid, the micropump comprising:
a pump assembly including
a first pump body defining a first fluid body flow path, the first pump body including
a first chamber, the first chamber including a first chamber wall and a first side wall,a first inlet and a first outlet, wherein the first inlet and first outlet are in fluid communication with the first chamber,a second pump body defining a second fluid body flow path, the second pump body including
a second chamber, the second chamber including a second chamber wall and a second side wall,a second inlet and a second outlet, wherein the second inlet and the second outlet are in fluid communication with the second chamber, anda flexible membrane disposed between the first chamber and the second chamber;a magnet affixed to the membrane;an actuator assembly configured to cooperate with the pump assembly, the actuator assembly including
a driver magnetically coupled to the magnet through a magnetic coil membrane, anda sensor configured to detect the position of the membrane, where the sensor is a Hall effect sensor that samples a magnetic field configuration modified by the position of the membrane; anda controller configured to accept position information from the sensor, wherein the driver applies a magnetic force using the magnetic coil to the magnet membrane in response to a signal received from the controller after analyzing the position information received from the sensor, causing the magnet to move and the membrane to deflect, and wherein such deflection of the membrane results in a change of pressure within the first chamber and the second chamber thereby resulting in fluid flow; and at least one valve in fluid communication with each of the first chamber and the second chamber, wherein the at least one valve is configured to direct the fluid flow in a predetermined direction. |
