Abstract:
Die Erfindung betrifft insbesondere eine Mikrodosiereinrichtung zum Erzeugen eines Mikrodosiervolumens einer Fluidprobe in Form eines Mikrofreistrahls durch schlagartiges Verdrängen eines vorbestimmten Mikrovolumens.
Abstract:
A connector for providing both a fluidic and electrical connection is disclosed, said connector having a proximal end, a distal end and an elongated body in between, characterized in that the elongated body has an inner cavity spanning throughout its length, and the distal end comprises: a) an inner body portion comprising a first inner electrical contact and b) an outer body portion comprising a second outer electrical contact having a spring element. The connector is easily adaptable to many kind of fluidic actuators and particularly to pipette instruments usually found in laboratory practice and developed to adapt fluidic actuators and pipette instalments to work according to the Coulter principle in every working condition, in particular to adapt the electrical and fluidic connection between a sensing tip and an instrumented pipette.
Abstract:
A handheld solid sample pipette device includes a pipette tube with a number of sharpened teeth adapted to pierce solid or substantially solid sample material, the pipette tube adapted to be matingly attached to a device that includes a handle, a plunger, and a piston within a shell of the device. A spring may be positioned to return the plunger to a non-depressed position following depression of the plunger. A sample of the material can be ejected from the handheld device. The handheld device may further include a shear ring apparatus, that in-turn includes a tube portion, a plurality of shear ring teeth, and a knobbed plate for rotating the shear ring. Following insertion of the pipette with sharpened teeth into the sample, the shear ring apparatus is pressed into the sample as well, such that the shear ring tube, which is slidingly engaged about the pipette tube, slides over the pipette tube into the sample. The shear ring teeth pierce the sample, and at a certain point of insertion, the shear ring apparatus is rotated in either or both a clockwise or counter-clockwise manner such that the shear ring teeth sever a portion of the material to be sampled such that the portion remains within the pipette tube, for removal, and analysis.
Abstract:
This disclosure is directed to a device and a system for aspirating and dispensing a target analyte, target material, or fluid. A picker may aspirate and dispense the desired material by introducing a pressure gradient. The picker may include a hydraulic fluid to hydraulically couple at least two components, such as a moveable pump component and a cannula.
Abstract:
The present invention relates to a semi-automatic pipette filler (SAPF) instrument, and an improved or modified pipette with suction pump with ergonomic features or design. The semi-automatic pipette filler (SAPF) has been tested for both graduated and volumetric pipettes of various sizes and can perform multipurpose tasks. It has been compared with the commercially available imported safety pipette fillers commonly used in various teaching and research laboratories in India and abroad. Handicapped people especially wheelchair bound users will find some of the designs rather convenient to use compared to commercially available ones. The SAPFs can be quickly assembled and dismantled. The overall performance of SAPFs has been very encouraging. Since pipettes are widely used in large numbers in educational, quality control and research laboratories there is considerable incentive for small scale and large scale industries to mass produce semi-automatic safety pipette fillers (SAPFs).
Abstract:
Se presentan sistemas que tienen mayor flexibilidad entre lo que es un dispositivo manual y un equipo automatizado. Esto deriva en un gran número de posibilidades en las configuraciones de los equipos, y la opción de un cambio gradual desde un dispositivo manual hacia un equipo automatizado, o bien una adaptación de acuerdo a las necesidades del laboratorio o del número de pruebas a realizar. El interés es tener un dispositivo escalable (y flexible en su configuración), de modo que se adapte a las necesidades y presupuestos del laboratorio y le permita al usuario tener referencias en cuanto a precisión y exactitud, así como la trazabilidad del sistema, al utilizar un mismo dispositivo en diferentes niveles. Se establece también el procedimiento para hacer el escalamiento con el equipo definido en cuatro niveles, con instancias manual y automática, determinando los caminos a seguir en cada caso de escalamiento.
Abstract:
This disclosure is directed to a device and a system for picking a target analyte of a suspension. A picker introduces at least one force, such as by a magnetic gradient and/or by a pressure gradient, to extract the target analyte from a specimen. The magnetic gradient may be introduced by a magnet, such as a permanent magnet or an electromagnet, and the pressure gradient may be introduced by a pump which moves within a fluid-primed cannula to create the pressure gradient, thereby drawing the target analyte into the cannula. The picker may also expel the target analyte onto or into a substrate, such as a well plate, after the target analyte has been drawn into the picker by reversing the pressure gradient or removing the magnetic gradient.
Abstract:
One or more techniques and/or systems are disclosed for an apparatus for use with a syringe or pipette. A chamber body can comprise a first chamber, a second chamber, and a fluid port. A first fluid seal can be disposed in the first chamber, and a second fluid seal can be disposed in the second chamber. The chamber body can comprise a first volume which is defined by a first chamber wall, the first seal, and the second seal, when the first seal and second seal are disposed in a first position. The first volume can also be defined by a sum of: a second volume defined by at least a second chamber wall, the first seal, the second seal; and a third volume comprising fluid displaced at the fluid port, when the first seal and second seal are disposed in a second position.
Abstract:
The present invention is related to automated and semi-automated strip-based assays, such as line probe assays (LiPA), involving nucleic acid hybridisations, and line immunoassays (LIA), and methods for performing strip-based assays on a device. Specifically, the present invention relates to a device and a method for performing strip-based assays.