Patent ID: 9552545
Date: 2017-01-24
CPC Classifications: A61B,A61F,B01D,C12Q,G01N,G06F,G06N,Y10S,Y10T

Claim:
1. A filter assembly for flow of filtrate comprising: a. an inlet and outlet for flow of first fluid filtrate containing a biological specimen containing microorganisms having a density D b. an interior space for filter media, wherein said filter media divides said interior space into a first interior space proximal to said inlet and a second interior space proximal to said outlet, said first interior space opposing said second interior space relative to said filter media wherein said filter media collects said biological specimen; c. a reservoir plate to partition said reservoir from said second interior space wherein said reservoir plate includes at least two openings in communication with said reservoir and said second interior space, wherein said second fluid in said reservoir is a preservative for said biological specimen and is capable of exchange with said first fluid in said interior space due to differential density of said first and second fluids, wherein: