The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2008
Filed:
Feb. 13, 2003
Khaled Abou Saleh, Courbevoie, FR;
Alain Rousseau, Paris, FR;
Khaled Abou Saleh, Courbevoie, FR;
Alain Rousseau, Paris, FR;
Stago Instrument, Gennevilliers, FR;
Abstract
The invention relates to an automatic precision pipetting device. The inventive device comprises at least two cylinder/piston-type pumping units (), the rods of which are rotated by means of a common motor unit (MP). Moreover, the pumping chamber of each of the pumping units () is connected to a circuit comprising, successively, a conduit that opens into a container of rinsing liquid (RL), three successive solenoid valves (EV, EV, EV) and a portion of circuit which connects the second solenoid valve (EV) with the pipetting means (AP). The larger pumping chamber is connected in the part of the circuit that provides the connection between the two solenoid valves (EV, EV) while the second pumping chamber is connected to the above-mentioned portion of circuit by means of a connector, said portion of circuit comprising a solenoid valve (EV) which is disposed between said connector and the aforementioned pipetting means. The invention is suitable for reagent reconstitution, in particular, in an automatic analysis device.