A phoretic analyzer was a Starfleet medical scanning device. In 2369, a Saltah'na affected Julian Bashir commented to Odo that we would like to study Odo with a phoretic analyzer. (DS9 episode: "Dramatis Personae") In 2256 of the alternate timeline created by nero, Leonard McCoy used a phoretic analyxer designed by Huer to detect kemocite. (ST - Starfleet Academy novel: The Assassination Game)