Hoffmann-la Roche Inc.

F. Hoffmann-la Roche Ag

Joerg Luemkemann

Hanns-Christian Mahler

Tobias Werk

Michael Adler

Carmen Lema Martinez

René Rietmann

Denis Luthringer

Roger Steiner

Anke Dorn

Adeline Boillon

Lars Sukowski

Alexander Meyer

Sebastian Schneider

Alexander Streubel

Karoline Bechtold-Peters

Marco Ehrhard

Bernd Schirmer

Joerg Voelkle

A peristaltic dosing device for providing dosages of a fluid at a volume of less than one milliliter comprises: a flexible tube, a counter pressure element, a plurality of actors and a drive. The flexible tube is essentially straightly arranged along the counter pressure element thereby forming a longitudinal axis. The actors arranged parallel to each other along the longitudinal axis. They are moveable by the drive in relation to the flexible tube. The flexible tube is compressible between the actors and the counter pressure element by moving the actors. Each of the actors is independently and linearly moveable by the drive along an actuation axis essentially perpendicular to the longitudinal axis of the flexible tube from a home position in which the flexible tube is least compressed to an end position in which the flexible tube is compressed and sealed between the respective actor and the counter pressure element. The peristaltic dosing device according to the invention allows for exactly and repeatably providing dosages at comparably small volumes in a sterile environment.

Dosing a fluid at a volume of less than one milliliter

A freeze-drying device for the monitoring and control of water vapor in a freeze-drying process, comprising an optical spectrometer, and methods of using same to monitor and control the amount of water vapor in said process under sterile conditions.

Water vapor monitoring apparatus

Growing community of inventors

Loerrach, Germany

Joerg Luemkemann