HIGH FREQUENCY UNIFORM DROPLET MAKER AND METHOD

摘要

Systems, methods, and devices are disclosed for producing substantially uniform droplets. The system includes a fluid reservoir vessel defining a fluid reservoir, a separation membrane at one end of the fluid reservoir, at least one capillary channel at an opposite end of the fluid reservoir, a solution dispenser, and a piezo actuator in contact with a separation membrane. The separation membrane has a thickness greater than about 0.2 mm, and the solution dispenser maintains the fluid reservoir filled with fluid such that the fluid simultaneously contacts the separation membrane and the capillary channel. The solution dispenser maintains the fluid reservoir under pressure to create a fluid stream exiting the capillary. The piezo actuator is in contact with the separation membrane on a side opposite that in contact with the fluid, and the piezo actuator transfers a pressure wave through the fluid in the fluid reservoir to break up the fluid stream into uniform droplets.

主权项

1. A system for producing droplets, the system comprising:
a fluid reservoir vessel defining a fluid reservoir; a separation membrane disposed at a first end of the fluid reservoir, the separation membrane having a thickness greater than about 0.2 mm; one or more capillary channels disposed at a second end of the fluid reservoir opposite the separation membrane; a solution dispenser in fluid communication with the fluid reservoir and disposed to maintain the fluid reservoir filled with fluid such that the fluid contacts the separation membrane and the one or more capillary channels, the solution dispenser further disposed to maintain the fluid reservoir under pressure to create a fluid stream exiting the one or more capillary channels; and a piezo actuator in contact with the separation membrane on a side opposite that in contact with the fluid, the piezo actuator disposed to transfer a pressure wave through the fluid in the fluid reservoir to break up the fluid stream into droplets.