Patent ID: 7863035

Claim:
A fluidics device, comprising: a membranous diaphragm having a first and second side, said first side for coupling to a pump; a flow channel coupled to said second side of said membranous diaphragm; two or more check valves coupled to said flow channel so as to promote unidirectional flow of a fluid sample through said flow channel, at least one of said valves comprising: i) a sealing surface comprising a valve seat that allows for regulated flow of fluid through said flow channel; and ii) a membranous sealing structure for contacting said valve seat and occluding fluid flow therethrough when in a first position, and for promoting fluid flow therethrough when in a second position, said membranous sealing structure comprising two substantially parallel slits with a displaceable region therebetween to engage or retract from said sealing surface; wherein said diaphragm and said membranous sealing structure are integral to a common membranous layer in a multilayer assembly; and wherein said two or more check valves alternate opening and closing in coordinated reciprocal fashion according to alternating positive and negative forces exerted on said diaphragm.