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Class 422/100 - Pipette or other volumetric fluid transfer means


Subclass of Class 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
Definition: Apparatus having means for volumetrically transferring a
No. of patents: 2783
Last issue date: 04/10/2012


1                      
NumberTitleIssue Date
8153080Cartridge and sensor-dispensing instrument
A disposable cartridge adapted to be used with a sensor-dispensing instrument comprises a housing, test sensors, a mechanical mechanism and moveable seals. The housing forms at least one opening therethrough. The test sensors are stacked in the housing. The test sen...
04/10/2012
7972560Apparatus for dispensing material
An apparatus capable of dispensing drops of material with volumes on the order of zeptoliters is described. In some embodiments of the inventive pipette the size of the droplets so dispensed is determined by the size of a hole, or channel, through a carbon shell enc...
07/05/2011
7951335Reaction vessel, reaction vessel liquid introducing device, liquid introducing and reaction measuring device, and liquid introducing device
The invention relates to a reaction vessel, a reaction vessel liquid introducing device, a liquid introducing and reaction measuring device, and a liquid introducing device, and is directed to being able to perform temperature control of a liquid stored within the r...
05/31/2011
7951334Direct write nanolithographic deposition of nucleic acids from nanoscopic tips
The use of direct-write nanolithography to generate anchored, nanoscale patterns of nucleic acid on different substrates is described, including electrically conductive and insulating substrates. Modification of nucleic acid, including oligonucleotides, with reactiv...
05/31/2011
7951336Reaction vessel, reaction vessel liquid introducing device, liquid introducing and reaction measuring device, and liquid introducing device
The invention relates to a reaction vessel, a reaction vessel liquid introducing device, a liquid introducing and reaction measuring device, and a liquid introducing device, and is directed to being able to perform temperature control of a liquid stored within the r...
05/31/2011
7947234Liquid end assembly for a handheld multichannel pipette with adjustable nozzle spacing
A handheld multichannel pipette includes multiple fluid-handling nozzles and a rotary adjustment mechanism for adjusting the width of a pattern of nozzles while maintaining equal spacing between pairs of nozzles. Embodiments of the adjustable-spacing multichannel pi...
05/24/2011
7931869Device for dosage of substances
A device for dosage of substances having a substance intake portion, which included at least one substance compartment for the intake of substance to be dosed, an emptying portion for the emptying the substance compartment and a weighing balance for the determinatio...
04/26/2011
7919047Air displacement pipetter
An air displacement pipetter comprises a guidance sleeve positioned within a hole in a cylinder block and a piston within a portion of the guidance sleeve a piston penetrating the cylinder block, a spring energized seal disposed within the cylinder block, a seal cap...
04/05/2011
7910074System and method for continuously transferring and processing liquids
A liquid transfer system for transferring liquid from a plurality of containers to a plurality of destinations comprises a plurality of inlet valves. Each inlet valve is operable between an open position allowing liquid from a container to be drawn into the system a...
03/22/2011
7906074Microfluidic array system for biological, chemical, and biochemical assessments
The system and method of the present application is a microfluidic array system for biological, chemical and biochemical assessments including a microfluidic chip for reaction assays, wherein the microfluidic chip includes a control layer and a fluidic layer, wherei...
03/15/2011
7901633Quantitative cell dispensing apparatus using liquid drop manipulation
Provided is a quantitative cell dispensing apparatus using liquid droplet manipulation, for quantitatively dispensing cells from hydrophilic suspension containing a plurality of cells. The quantitative cell dispensing apparatus includes hydrophilic suspension, a liq...
03/08/2011
7901643Flow channel device and sensor unit for assay in utilizing attenuated total reflection
A sensor unit for use in a surface plasmon resonance (SPR) assay includes a flow channel device, which causes a sample fluid of a sample to flow on a sensing surface lying on a prism. The flow channel device includes a rigid device body part having an opposing surfa...
03/08/2011
7897111Pipetting device
A pipetting device, having a base plate, an elastic sealing plate that covers the outside of the base plate, and a plurality of pipetting channels arranged in a predetermined grid extending through the base plate and the sealing plate. A magazine is loaded in the sa...
03/01/2011
7892494Micro-drop detection and detachment
An apparatus for accurately dispensing small volumes of liquid from a cartridge having a substantially cylindrical body and a sliding piston and a dispensing tip, wherein an initial starting state is established by electro-optically sensing the position of the liqui...
02/22/2011
7892495Sensing device and method for rapidly determining concentrations of microbial organisms using interfacial photo-voltages
A system for detecting a wide range of microbial organisms, including virus, and determining concentrations in near real-time to determine titer, without the requirement to grow micro-organisms includes an electrometer configured to measure photo-induced interfacial...
02/22/2011
7887753Apparatus and methods for conducting assays and high throughput screening
The present invention provides microfluidic devices and methods for using the same. In particular, microfluidic devices of the present invention are useful in conducting a variety of assays and high throughput screening. Microfluidic devices of the present invention...
02/15/2011
7883669Analysis engine and database for manipulating parameters for fluidic systems on a chip
Systems for managing workflows to perform chemical or biological reactions using microfluidic devices. ...
02/08/2011
7875245Method and apparatus for automated pre-treatment and processing of biological samples
The present invention concerns a method and apparatus for automatic processing a biological sample on a carrier, perhaps robotically, by applying predetermined amounts of reagents in a predetermined sequence according to a processing protocol, the processing includi...
01/25/2011
7867450Liquid droplet ejecting head, inspection device, and method of using inspection device
A liquid droplet ejecting head includes a nozzle unit having a nozzle capable of ejecting liquid droplets and a pressure generating passage communicating with the nozzle. A driving unit includes a nozzle unit mounting portion and an actuator. The nozzle unit is deta...
01/11/2011
7867449Pipette tip, liquid receiving structure, liquid supply device
A pipette tip includes a cylindrical distal end portion in which an opening that dispenses or draws in liquid is formed and a body portion that has a cylindrical shape whose outer periphery has a larger diameter than that of the distal end portion and which configur...
01/11/2011
7867451Sample suction apparatus
A sample suction apparatus includes: first through third members; a drive source; and a suction needle provided on the third member. The drive source reduces a distance between the first member and the third member to perform: a first action of shifting the first me...
01/11/2011
7862778Fluid system comprising a safety device
A fluid system that includes a flow system for a liquid having an inlet, an outlet, at least one fluid line extending from the inlet to the outlet and an electrically activatable melting device, wherein activation of the melting device causes melting, which interrup...
01/04/2011
7858040Direct mixing and injection for high throughput fluidic systems
A system and method of mixing and injecting discrete sample mixtures into a flow cytometer or other sample analysis apparatus may generally comprise a sample injection guide coupling a liquid handling apparatus with a sample analysis apparatus and facilitating injec...
12/28/2010
7858042Microfluidic chip and method of fabricating the same
Provided are a microfluidic chip and a method of fabricating the same. The microfluidic chip includes: a lower substrate; an upper substrate formed of a silicone resin, wherein the lower substrate and the upper substrate, bonded together, provide a channel through w...
12/28/2010
7858041Fluid dispenser for fluid in assay
A fluid dispenser for surface plasmon resonance (SPR) assay apparatus includes a first pipette device on a first pipette head, and a second pipette device on a second pipette head. In a standby state, the first pipette head is set in an upper position, a coil spring...
12/28/2010
7854894Feed device for liquid samples
Feed devices for liquid samples serve to convey liquid samples, for example to convey a liquid sample from waste water in a waste water treatment plant so as to monitor the treatment process. Known feed devices feed continuously at relatively low speeds. Films may a...
12/21/2010
7850921Dispenser, reagent dispenser and sample analyzer
The present invention is to present a dispenser which is capable of heating a liquid to an approximately constant temperature in the same time regardless of an aspiration amount of the liquid. The dispenser comprises a liquid holder for holding a liquid; aspiration ...
12/14/2010
7846392Prevention of precipitate blockage in microfluidic channels
The present invention provides novel microfluidic devices and methods for preventing/ameliorating formation of precipitate blockages in microfluidic devices. In particular, the devices and methods of the invention utilize microchannels of specific cross-sectional co...
12/07/2010
7837943Device and method for pre-treating and injecting liquid specimen
A device for pre-treating and injecting a liquid specimen includes a first syringe including an open top first tube including a first hole in the bottom and protrusions, a second syringe including an open top second tube including a second hole in the bottom and an ...
11/23/2010
7833487Solution filling apparatus
A solution filling apparatus fills a capillary with solution of a substance to be introduced into a cell. A capillary holding unit holds the capillary. An injection-tube holding unit holds an injection tube to be injected into the capillary. A solution ejecting unit...
11/16/2010
7833486Hydrophilic/hydrophobic surfaces
A microfluidic device that comprises one or a plurality of microchannel structures each of which comprises a microconduit for transport and/or processing of liquid, the inner surface of which comprises a hydrophilic liquid contact surface area (surface area 1...
11/16/2010
7833488Process vessel with integral evaporator
A process vessel containing both an evaporation zone for evaporating a liquid feed and a treatment zone for treating the resulting vapor comprises an injector having an orifice, the orifice being in the evaporation zone, at least one evaporation surface for evaporat...
11/16/2010
7833485Sample preparing apparatus
The sample preparing apparatus comprises a smear forming means for forming a sample smear on a slide glass, a print means for printing sample identification information on a slide glass, a mode selecting means for selecting one operating mode from among a plurality ...
11/16/2010
7829025Systems and methods for thermal actuation of microfluidic devices
A microfluidic processing device includes a substrate defining a microfluidic network. The substrate is in thermal communication with a plurality of N independently controllable components and a plurality of input output contacts for connecting the substrate to an e...
11/09/2010
7824620Nano- and micro-scale structures: methods, devices and applications thereof
Disclosed are methods for fabricating integrated nano-scale and micro-scale structures. Also disclosed are carbon nanopipettes, shovels, and sheets made by these methods. Nano-scale and micro-scale structures fabricated by the disclosed methods are useful in a varie...
11/02/2010
7824621Apparatus and method for ejecting droplets using charge concentration and liquid bridge breakup
Disclosed is an apparatus and method for ejecting droplets using charge concentration and liquid bridge breakup. The droplet ejection apparatus includes a reservoir storing a liquid; a capillary nozzle having a lower end submerged in the liquid stored in the reservo...
11/02/2010
7820111Blood specimen dispenser
A blood specimen dispenser is provided which dispenses a precise amount of collected blood from a blood specimen collector onto filter paper or the like for screening or evaluation. ...
10/26/2010
7820112Method and apparatus for manufacturing beads array chip
A bead array chip manufacturing process for manufacturing a bead array chip having plural kinds of beads arrayed in a predetermined order in, in a container having a plurality of first channels disposed substantially in parallel with each other and a second channel ...
10/26/2010
7820110Drop catcher
The invention relates to a device for catching drops from a pipette mechanically attached to a pipetting device in the field of nucleic acid purification and amplification. Furthermore, a method for pipetting a liquid with a decreased potentiality of contamination o...
10/26/2010
7820109Testing chip and micro analysis system
A testing chip that analyzes a specimen includes: a reagent storage section; a mixing and reaction flow channel to perform a series of operations to mix a specimen and aqueous reagent, make the specimen and reagent react with each other, and detect the reaction; and...
10/26/2010
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