Process for reducing pathogens in a biological sample and removing a sample pellet from a sample tube

Abstract

The present invention is directed towards an apparatus and method for disinfecting biological samples, including semen and the like, and for removing a biological sample pellet from surrounding media while reducing the risk of recontamination of the pellet with said media. An insert receptacle includes a receiving cylinder having a drain in a floor which allows the fluids to decant slowly down the side of a tube. The insert receptacle further includes an aspiration channel which allows an aspiration device, such as a modified micro-pipette, to be utilized for extracting a sample pellet from the bottom of the tube. Utilizing the novel apparatus, a method for reducing pathogens in a biological sample includes decanting the biological sample through the receiving cylinder and into a tube where it passes through a multi-layer gradient including an enzyme suitable for removal of at least one pathogen from the biological sample. Centrifuging of the insert receptacle, tube, and sample, isolates a sample pellet of the biological sample from the surrounding at least one pathogen. After the sample pellet is isolated it is aspirated via the aspiration device without re-contaminating the sample pellet through contact with the surrounding at least one pathogen.

Dependencies are inferred from the claim text.