摘要:
The invention proposes a process and a laminating device for producing a microfluidic apparatus, wherein a film is pressed onto a backing under the action of heat and is thereby bonded to the latter. During the bonding process, the film is raised by the injection of gas on the backing side such that it cannot adhere in a non-bonding region, and is vented on the side remote from the backing. The apparatus is pressed together between a holder and a thermode of the laminating device during the lamination. A respective elastic intermediate layer is arranged between the apparatus and the holder and also between the apparatus and the thermode to make the contact pressing force more uniform and to make the bonding between the film and the backing more uniform.
摘要:
The invention relates to joining plastic components into a microfluidic cartridge (20). The invention in particular relates to cartridges (20) for diagnostic analysis devices. The cartridge (20) comprises a fluidically conductive floor element (11), a cover (2), and a film (3) disposed between the elements (1, 2). The cover (2) or the floor element (1) and the film (3) comprise a filling opening (5) for filling microfluidic channels (4) in one of the elements having sample fluid. Pins (6) formed integrally with one of the board-shaped elements (1, 2) engage in corresponding holes (7) in the film (3) and the associated element (1, 2) for each. By means of deforming a pin (6), a friction fit is produced between a deformed pin and the wall of a hole, and a head (9) contacting the associated substrate in a form-fitting manner is formed. For the joining process, a press tool (12) is placed on a head end (9) of a pin (6) at a predetermined pressure P, and heat transfer into the pin (6) takes place during a weld time ts. The pin material is brought to above the glass transition temperature and/or the melting point, and a friction fit between the pin (6) and the wall of the hole (7) is formed by flowing the pin material in the hole (7).
摘要:
Es werden eine Vorrichtung und ein Verfahren zur Abtrennung von Bestandteilen einer Probenflüssigkeit vorgeschlagen, wobei die Probenflüssigkeit einem Aufnahmebereich zum Dosieren, Anhalten oder Verzögern der Probenflüssigkeit durch Kapillarkraft zugeführt und die Probenflüssigkeit mit einer lösbaren Chemikalie im Aufnahmebereich vorbehandelt wird, bevor die Probenflüssigkeit einer Trenneinrichtung zur Abtrennung von Bestandteilen der Probenflüssigkeit zugeführt wird.