Multi-channel fluid dispenser

B - Operations – Transporting – 01 – L

Patent

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Details

B01L 3/02 (2006.01)

Patent

CA 2452184

The invention relates to a multi-channel fluid dispenser for taking liquid (14) from several cavities (12), provided on a reservoir plate (10) and to dispense the above on a receiving plate (16). The above comprises: several flexible channels (26), arranged in a convergent bundle, the first ends of which are for dipping in said cavities and the second ends of which form a miniaturised network, means for filling said channels with the liquid contained in the cavities at the first end thereof and means for expressing a drop of said liquid, from the second end of each channel, in the direction of the receiver plate. The channels are formed from several flexible plates (18) connected together at the side thereof which forms the second extremities of the channels. Each are formed from two polymer sheets sealed together and at least one of which is provided with a network of convergent grooves forming the channels.

L'invention concerne un dispensateur de fluide multi-canal permettant de prelever du liquide (14) dans une pluralite de cavites (12) ménagées sur un plateau reservoir (10) et de le projeter sur un plateau recepteur (16). Il comporte: une pluralité de canaux souples (26) disposés en un faisceau convergent, dont les premières extremités sont destinées à être plongées dans lesdites cavités et dont les deuxièmes extrémités sont assemblées en un reseau miniaturisé; des moyens de remplissage desdits canaux, à partir de leurs premières extrémités, par le liquide contenu dans les cavités; et des moyens d'expulsion d'une goutte de liquide de la deuxième extrémité de chaque canal en direction du plateau récepteur. Les canaux sont formés dans une pluralite de plaques souples (18) liées ensemble par leur partie (24) qui comporte les deuxièmes extrémités des canaux. Elles sont formées chacune de deux feuilles polymeriques scellées ensemble et dont l'une, au moins, est dotée d'un réseau de rainures convergentes formant les canaux.

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