POWERED POSITIVE DISPLACEMENT PIPETTE ASSEMBLY

Described are exemplary embodiments of a handheld, powered positive displacement pipette assembly, including a plurality of syringes of different volumes and a powered positive displacement pipette having unique mechanisms for the retention, identification and ejection of said syringes. Described ar...

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Bibliographische Detailangaben
Hauptverfasser:	HILL, Richard, MCNAUL, Michael, GRIMWADE, Stephen, MCPHERSON, Jamie, ARCINIEGAS, German
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	Described are exemplary embodiments of a handheld, powered positive displacement pipette assembly, including a plurality of syringes of different volumes and a powered positive displacement pipette having unique mechanisms for the retention, identification and ejection of said syringes. Described are further related syringes, related handheld powered positive displacement pipettes and related mechanisms. In particular, the claimed invention relates to a syringe (500, 550, 600, 650, 700) for a handheld powered positive displacement pipette (5), the syringe comprising a piston (525, 575, 625, 670, 720) located in a capillary portion (505, 555, 605, 655, 705) of the syringe and axially reciprocatable therein. The piston (525, 575, 625, 670, 720) has a piston head (530, 580, 630, 685, 735) that resides outside and proximally of the capillary portion and that includes at least a pair of elastically deformable arms (530a, 530b; 580a, 580b; 630a, 630b; 685a, 685b; 735a, 735b) that extend outwardly from the syringe piston head for engagement by the pipette.