Other

Dräger Safety Ag&co. Kgaa

Drager Sicherheitstechnik Gmbh

Jessica Mahn

Thomas Wuske

Rainer Polzius

Maria Cerqueira Da Costa

Torben Bauch

A device, process and system are provided for collecting and releasing a liquid sample, especially saliva. A defined saliva sample, i.e., a filtered, approximately homogeneously mixed saliva sample of a predetermined volume is made available in the simplest possible manner. A sampling tip () is provided made of a dimensionally stable and porous material, which is moved with its mouthpiece () in the mouth of a test subject for one to two minutes and takes up saliva based on the capillary action. A reagent liquid enters the pores of the sampling tip (), mixes with the saliva there and is subsequently fed from a reagent depot by the action of pressure. The saliva and the reagent liquid are finally discharged as a droplet () in the filtered and mixed state, either into the cavity () of the sample collector or into a filter mixer.

System for collecting and releasing saliva

A swab analyzer with advantageous handling and detection sensitivity for the immunochemical detection of substances. The analyzer has a housing, an eluent application zone (a swabbing pen ) and a reaction zone ( ). The housing ( ) has a local elevation with a central opening, from which a sampling and eluent application zone, designed as a porous swabbing pen ( ), projects. The local elevation is provided with an at least partially circular collection groove ( ) for receiving excess eluent. A window ( ) is present in the housing ( ) at a spaced location from the local elevation for evaluating the reaction zone ( ) placed under it. The sampling and eluent application zone as well as the reaction zone ( ) with the signal zones ( ) are in capillary fluid connection with one another.

Swab analyzer for the immunochemical detection of substances

A process for detecting dust-associated substances wherein the dust to be analyzed is brought together with a solvent for eluting the substance to be detected from the dust. The particulate components are retained by means of a filter matrix while the solvent and the substances dissolved and/or suspended therein are transported through the filter matrix by capillary liquid transport. The solvent and the substances dissolved and/or suspended therein are transferred into a reaction matrix adjoining the filter matrix by capillary liquid transport. The substance to be detected is detected in the reaction matrix by means of a chemical and/or biochemical reaction or by the failure of a chemical and/or biochemical reaction to take place. A device for detecting dust-associated substances preferably contains, besides the filter matrix and the reaction matrix, a container for receiving the dust to be analyzed, wherein the container is in liquid connection with the filter matrix.

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Dunkelsdorf, Germany

Jessica Mahn