Patent ID: 11919001
Assignee: SPHERE FLUIDICS LIMITED
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 6:
7. A microfluidic droplet dispensing system, the system comprising:
a droplet feed line to carry droplets for dispensing;
a dispensing line to carry dispensing fluid for dispensing the droplets;
a droplet outlet line coupled to a droplet outlet;
a first pressure source to provide pressurized dispensing fluid to said dispensing line to eject droplets from said droplet outlet;
a first junction where the droplet feed line, the dispensing line, and the droplet outlet line intersect, the first junction having a first input to receive a flow of droplets from said droplet feed line, having a second input to receive a flow of pressurized dispensing fluid from said dispensing line and having an output to said droplet outlet line, wherein the first junction is downstream of the first pressure source and the dispensing line;
a waste line intersecting said droplet outlet line at a waste line junction between said first junction and said droplet outlet, wherein the waste line junction is downstream of the first unction;
a droplet dispensing valve between said first pressure source and said dispensing line to control the ejection of droplets from said droplet outlet;
wherein the system further comprises:
an injection line, intersecting the waste line at a second junction, to inject dispensing fluid into the waste line in synchrony with opening of the dispensing valve.