Multi-channel pipette device
1 Assignment
0 Petitions
Accused Products
Abstract
A pipette device comprising a plurality of multi-channels which are arranged in one or several rows or like a matrix in several rows and columns and which are connected to the tip of a pipette on the end side thereof. At least one separate micromembrane pump is associated with each pipette channel for dosed suction or discharge of fluids, said pump consisting of several disk-type microstructures which are placed on top of each other and between which a pump chamber is formed and wherein one of which is provided with a membrane which can be deformed by an actuating element. In order to provide an extremely user-friendly pipette device which can be constructed in a simple, economical manner, at least some of the micromembrane pumps of different pipette channels are connected to each other in a material fit and the micromembrane pumps of each of said pipette channels can be programmed separately from each other by means of an electronic data processing unit such that the dosing volume of each micromembrane pump can be adjusted separately.
128 Citations
28 Claims
-
1-14. -14. (canceled)
-
15. A pipette device for dosed suctioning and/or discharge of fluids through a plurality pipette tips, the device comprising:
-
a dosing head defining a plurality of pipette channels disposed in one or more rows or in a matrix of rows and columns, each channel for connection to one pipette tip;
a plurality of micro-membrane pumps, wherein at least some of said micro-membrane pumps are connected to each other in material fit, with each pipette channel cooperating with at least one micro-membrane pump for pumping and suctioning the fluids, the micro-membrane pumps comprising a first and a second substantially, disk-shaped member, disposed one on top of the other to define an intermediate pump chamber, wherein at least one of said first and said second disk-shaped members defines a membrane;
a plurality of actuating elements cooperating with said membranes to deform said membranes during pumping and/or suctioning; and
electronic data processing means communicating with said actuating elements to separately adjust a pumping volume of each membrane pump. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
Specification