B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 19/00 (2006.01) B01L 3/02 (2006.01) F04B 19/00 (2006.01) G01N 35/10 (2006.01)
Patent
CA 2376863
A device for device for applying a plurality of microdroplets onto a substrate has a plurality of nozzle orifices in a dosing head. In addition to walls for defining a liquid column of a medium to be dosed on each nozzle orifice, a pressure chamber is provided, which is adapted to be filled with a buffer medium and which is arranged in such a way that said buffer medium can simultaneously be used for applying a pressure to the liquid-column ends which are spaced apart from the nozzle orifices. A pressure generator is provided for applying a pressure to said buffer medium in such a way that a plurality of microdroplets will simultaneously be applied onto the substrate through said plurality of nozzle orifices. Finally, liquid reservoirs for the media to be dosed, which are in fluid communication with the liquid columns on the nozzle orifices are provided.
L'invention concerne un dispositif pour déposer une pluralité de microgouttelettes sur un substrat. Ce dispositif comprend une pluralité d'ajutages (14) situés dans une tête de dosage. Il présente également, outre une unité servant à installer une colonne d'un fluide à doser au niveau de chaque ajutage (14), une chambre de pression (30) pouvant être remplie d'une substance tampon. Cette chambre est placée de sorte que ladite substance tampon puisse exercer simultanément une pression sur les extrémités, à distance des ajutages (14), des colonnes de fluide. Ledit dispositif comprend enfin une unité de production de pression (8, 40) servant à soumettre la substance tampon à une pression de sorte qu'une pluralité de microgouttelettes soit déposée simultanément sur le substrat par l'intermédiaire de la pluralité d'ajutages (14).
Gruhler Holger
Hey Nicolaus
Sandmaier Hermann
Zengerle Roland
Hahn-Schickard-Gesellschaft Fuer Angewandte Forschung E.v.
Mccarthy Tetrault Llp
Zengerle Roland
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