초록 ▼

The invention provides microfluidic devices with embedded fluidic impedances. Such impedances do not allow fluid to pass at a low differential pressure, but allow fluid to flow at a higher differential pressure. Impedances are formed by the three dimensional overlap of two or more channels contained

The invention provides microfluidic devices with embedded fluidic impedances. Such impedances do not allow fluid to pass at a low differential pressure, but allow fluid to flow at a higher differential pressure. Impedances are formed by the three dimensional overlap of two or more channels contained within layers of the device. Such devices can be rapidly protyped and can be assembled to contain multiple fluidic impedances to perform complex fluid handling tasks, including metering defined volumes of samples and dividing samples into aliquots.

대표청구항 ▼

The invention provides microfluidic devices with embedded fluidic impedances. Such impedances do not allow fluid to pass at a low differential pressure, but allow fluid to flow at a higher differential pressure. Impedances are formed by the three dimensional overlap of two or more channels contained

The invention provides microfluidic devices with embedded fluidic impedances. Such impedances do not allow fluid to pass at a low differential pressure, but allow fluid to flow at a higher differential pressure. Impedances are formed by the three dimensional overlap of two or more channels contained within layers of the device. Such devices can be rapidly protyped and can be assembled to contain multiple fluidic impedances to perform complex fluid handling tasks, including metering defined volumes of samples and dividing samples into aliquots. r is comprised of a non-magnetically attractive material and wherein said basing device comprises a first magnet secured to said mounting bracket and a piece of magnetically attractive material secured to said biasing support member. 23. The arrow rest of claim 20, further including a stopping mechanism for preventing over rotation of said at least one arm substantially passed said first position after said at least one arm is rotated to a second position and then returns to said first position. 24. The arrow reset of claim 20, wherein said at least one arm comprises a pair of arms attached to said shaft, and further comprising a pair of tip members, each secured to one of said pair of arms, said tip members spaced apart to support the shaft of an arrow. 25. The arrow rest of claim 20, wherein said at least one arm comprises first and second arms, each of said first and secon