Abstract:
L'invention concerne un bouton de commande (12) d'une pipette de prélèvement à actionnement manuel, le bouton comprenant des parties inférieure et supérieure (24a, 24b) dont l'une est équipée d'un capteur d'effort (31) et l'autre d'un organe d'actionnement (30). En position verticale du bouton, dans un état non sollicité, d'une part l'organe (30) assure le maintien axial de la partie supérieure sur la partie inférieure (24a), et d'autre part ces parties définissent une liaison circulaire (42) de retenue axiale entre celles-ci, la liaison circulaire présentant un jeu axial (47) configuré de sorte que lors d'une pression par le pouce d'un opérateur sur une zone d'action excentrée (102a), le jeu axial (47) se consomme au niveau de cette zone(102a), pendant que la liaison (42) retient axialement et localement, relativement à la partie inférieure (24a), une zone de réaction (102b) agencée de façon diamétralement opposée à la zone d'action (102a).
Abstract:
Wägeabzug (1) zum Wägen pharmazeutisch wirksamer bzw. toxischer Substanzen in einem Labor, umfassend ein Gehäuse (10), das einen Arbeitsraum (19) festlegt, wobei eine Vorderseite des Gehäuses (10) eine bei bestimmungsgemäßem Gebrauch des Wägeabzuges stets geöffnete Arbeitsöffnung (11) aufweist, eine Arbeitsplatte (20), die den Arbeitsraum (19) bodenseitig begrenzt, und eine Armauflage (40), die an einer Vorderkante der Arbeitsplatte (20) im Bereich der Arbeitsöffnung (11) angeordnet ist, wobei ein Bedienfeld (42) in der Armauflage (40) integriert ist, derart, dass eine von der Arbeitsplatte (20) abgewandte Oberfläche der Armauflage (40) bündig mit einer Oberfläche des Bedienfeldes (42) ist.
Abstract:
In order to address an inability to separate portions of a sample and/or substance, in some embodiments, methods and apparatuses for separating components and/or portions of a sample are provided. For example, a sample collection container may comprise two areas within the container, one which is configured to contain a first volume of the sample, and one which is configured to contain a second volume of the sample. A float device may be configured to seal the portion of the container collecting the first volume from the portion of the container collecting the second volume, after the former portion of the container has been filled. The sample collection container may further comprise a top cap configured to further seal the two portions of the container, and to prevent leakage and/or spilling of the sample from the sample collection container.
Abstract:
Storage assembly for two substances to be mixed prior to use, comprising a closable dropper tip (3). A first storage chamber (7) is formed by the closable dropper tip (3) and a first container part (2, 4), the first container part (2, 4) being provided with at least one aperture (43). A second storage chamber (8) is formed by a second container part (5) which comprises an open end part (52, 53) that closes off the at least one aperture (43) in a first operational position. The first and second container part (2, 4; 5, 6) are moveable with respect to each other, and are in fluid communication through the at least one aperture (43) in a second operational position wherein the total flow surface area of the at least one aperture (43) is at least equal to a cross sectional area of the first container part (2, 4).
Abstract:
A pipette is described which pipette includes a piston for aspirating liquid into and dispensing out of a container in the pipette. The pipette is provided with at least one tracking element (21) which is able to count the magnitude of some variable or variables relating to the amount of use of the pipette, means (3, 4, ) for creating a limit magnitude for each variable, and means for giving information when the limit value is exceeded. Thus the user may for instance be warned when he may be exposed to high workload stress possibly causing injuries.
Abstract:
A cannula (10) for use in removing samples of fluid from a container sealed with a pierceable membrane, the cannula including a hollow needle like portion (12) having a pointed forward end (20) shaped to allow forcible penetration through the membrane, the rear end (14) having a first bore (26) and an insert (40) located within the first bore (40) that reduces the effective size of the first bore (26) without blocking the first bore (26).
Abstract:
A spinnable rotor for. a high speed centrifuge includes a housing which defines a chamber interiorly thereof for receiving a whole blood sample and for containing a predetermined amount of red blood cell absorbent gel. The housing includes an upper portion and a bottom portion, the upper portion having a port formed through the thickness thereof. The upper portion has at least a portion thereof formed from a light transmissible material. A light pipe is joined to the upper portion and light transmissively communicates with the light transmissive portion of the upper portion. The light pipe extends at least partially into the chamber and has an open, lower free end. When whole blood filling the rotor chamber contacts the lower free end of the light pipe, the red color of the blood is transmissively communicated to the upper portion of the rotor housing where it is viewable by the user of the centrifuge.
Abstract:
The invention relates to a two-phase electronic pipette, in which the piston can be moved from the basic position to the lower position and in which the distance between basic position and lower position can be changed.
Abstract:
The invention relates to a multiphase pipette having a body and in this body a piston device (9, 10, 22, 24) having a lower end and an upper end, and a push button (11) at the upper end, the piston device and the push button having an upper position, from which they can be pressed down together over a first distance at a first phase and then over a second distance at a second phase. After the first phase, but before the second phase, the push button can be pressed down over a distance at an intermediate phase so that the piston device (9, 10, 22, 24) remains immobile.