Patent ID: 9707561
Date: 2017-07-18
CPC Classifications: B01L,F04B,G01N

Claim:
1. An assay fluid delivery system comprising an array of fluid reservoirs, each of which is selectively actuatable to deliver a respective fluid to a fluid channel structure; and a fluid delivery control system comprising two lines of reciprocally mounted actuators in a rectilinear arrangement, each associated with a respective reservoir and being movable between a retracted position and an actuating position at which it causes fluid to be delivered from the corresponding reservoir, a plurality of cams with different profiles mounted on a common, rotatable cam shaft located between the two lines co as and configured to allow both lines of actuators to be engaged by the plurality of cams, each cam being engaged with a respective one of the actuators whereby rotation of the cams is configured to cause movement of the corresponding actuators between the retracted and actuating positions, and a motor coupled to the cam shaft for rotating the cam shaft, wherein the cams are shaped relative to one another so as to cause the corresponding actuators to actuate the reservoirs in a predetermined sequence and for predetermined respective times.