Becton Dickinson and Company Limited

John F Dunne

Brian David Warner

Kerstin Willmann

Sujata Iyer

Douglas Petry

Methods and devices for exchanging therapeutic agents, such as cells, from one liquid medium to another liquid medium are provided. Aspects of embodiments of the methods include transferring a therapeutic agent from a first medium, such as a freezing, storage or shipping buffer, into a second medium, such as a sterile physiologically compatible buffer. In certain aspects, the transfer of the therapeutic agent from a first medium to a second medium involves the use of acoustic-focusing, or acoustophoresis. Embodiments of the subject methods may facilitate the transfer of a therapeutic agent from a storage medium to an infusion medium, and in certain embodiments include administering the therapeutic agent contained in the infusion medium to the subject. Also provided by the present disclosure are devices for practicing the subject methods.

Fluid exchange methods and devices

The invention provides a flow system and method for reliable multiparameter data acquisition and particle sorting. In accordance with the invention, a flow system assesses changes in the pattern of data collected in successive time intervals and actuates one or more corrective actions whenever the changes exceed predetermined limits. The present invention overcomes problems associated with collecting data and sorting and enumerating particles in flow cytometry systems that operate for prolonged periods or that must accommodate samples that vary widely in quality.

High throughput flow cytometer operation with data quality assessment and control

The invention provides a flow cytometric method for measuring dendritic cell function in whole blood, comprising: (a) contacting a whole blood sample with a dendritic cell activator; (b) adding to the sample a plurality of dendritic cell-distinguishing antibodies and at least one cytokine-specific antibody; and then (c) flow cytometrically assaying the sample for the binding of the cytokine-specific antibody by at least one distinguishable DC subset. Other assays are presented in which DC activation markers are assessed.

Flow cytometric, whole blood dendritic cell immune function assay

The invention provides a flow cytometric method for measuring dendritic cell function in whole blood, comprising the steps of: (a) contacting a whole blood sample with a dendritic cell activator; (b) adding to the sample a plurality of dendritic cell-distinguishing antibodies and at least one cytokine-specific antibody; and then (c) flow cytometrically assaying the sample for the binding of the cytokine-specific antibody by at least one distinguishable DC subset.

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Pleasanton, CA, United States of America

John F Dunne