Class 204/607 - With control means responsive to sensed condition

Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Apparatus in which means are provided to detect an apparatus
No. of patents: 35
Last issue date: 06/28/2011

Number	Title	Issue Date
7967968	Method and system for monitoring material separation process such as electrophoresis process in a sample A method and system are presented for use in analyzing a sample. The method comprises applying real time monitoring to a sample while undergoing a separation process consisting of spatial separation of molecules of different molecular weights in the sample. The syst...	06/28/2011
7338509	Electroactive polymer actuated sheath for implantable or insertable medical device A medical device delivery sheath, which comprises an active member that volumetrically expands and contracts upon application of an appropriate electrical potential. The active member further comprises an electroactive polymer, for example, polypyrrole. Also describ...	03/04/2008
7285199	Apparatus and method for electrophoretic microspot concentration A method and apparatus for concentrating dilute biomolecules in samples using electrophoresis are described. The method involves using the charged nature of the biomolecules to localize them to a microspot containing a dialysis membrane. The method and apparatus may...	10/23/2007
7261800	Automatic in situ electrophoresis method and apparatus A method of in situ electrophoresis of biological samples has the steps of preparing a sample plate and a gel plate, applying reagent onto the gel plate, moving an applicator to the sample plate so as to receive a sample onto the applicator, moving the applicator to...	08/28/2007
7214299	Method for separation, identification and evaluation of microbes and cells The method entails using capillary electrophoresis or capillary isoelectric focusing to separate intact microbes. The capillary system can be a conventional capillary tube or a microfluidic device. The method is employed to maintain the microbes intact to ide...	05/08/2007
6997870	Universal, programmable guide catheter A guide catheter apparatus that comprises the following: (a) a guide catheter portion that includes a plurality of electroactive polymer actuators disposed along its axial length and (b) a control unit coupled to the actuators and sending control signals to the actu...	02/14/2006
6984525	Method for automated isolation of fractions in multichannel separation systems A method to collect a plurality of target zones from a plurality of channels. The method includes introducing a plurality of compound mixtures into a plurality of microchannels on a microfabricated chip or a capillary tube. Optical signal measured at a detector wind...	01/10/2006
6976364	Temperature regulation of a sprayed fluid material The temperature of a flowing material, such as coating and filling materials, is regulated by having it pass through a metal block that is cooled or heated by adjacent thermoelectric elements. A temperature regulator uses, as inputs, a desired material temperature (...	12/20/2005
6969455	Electrophoresis frame for gel slabs with different thickness holder plates A frame used in clamping gel slab holders having different thicknesses used in electrophoresis. The frame has a cam that, when rotated, presses against a plate of a gel slab holder. The cam has a high lobe and a low lobe for selectively clamping gel slab holders hav...	11/29/2005
6964735	Method for moving charged particles Devices and methods are disclosed for moving charged molecules through a medium by the application of a plurality of electrical fields of sufficient strength and applied for sufficient amounts of time so as to move the charged molecules through the medium. The devic...	11/15/2005
6909220	High strain tear resistant gels and gel composites for use as artificial muscle actuators Novel gels and articles are formed from one or more copolymers having at least one poly(ethylene) components and high levels of one or more plasticizers, said gels having an amount of crystallinity, glassy components, and selected plasticizers sufficient to achieve ...	06/21/2005
6902313	Micro chaotic mixer A micro mixer for use in a microdevice which utilizes time-varying force fields to induce bulk fluid and/or sample component motion leading to homogenization of sample components. Time-varying force fields employed includes at least one of a physical displacement fi...	06/07/2005
6837977	Capillary electrophoresis method for screening for affinity ligands using a detectable competitive ligand The invention relates to a capillary electrophoresis-based method of screening complex materials for any unidentified affinity ligand that binds to a target of interest. The method subjects a plug of a mixture of the target and a complex material sample, and a separ...	01/04/2005
6524866	Capillary electrophoretic method to detect target-binding ligands and to determine their relative affinities The invention relates to capillary electrophoretic methods for detecting ligands or hit compounds that can bind to a selected target at or above a selected binding strength. The method allows one to rank various ligands based on their relative affinity, i...	02/25/2003
6451192	Simplified electrophoresis apparatus The electrophoresis apparatus comprises rectifier (A) which rectifies an AC current from a universal AC power source and outputs a rectified wave, an electrophoresis cell and an electric controller which applies an electric output from the rectifier (A) t...	09/17/2002
6117296	Electrically controlled contractile polymer composite An electrically controlled polymer composite which, when acted upon by an electric current, contracts or relaxes. It can also serve as a smart drug delivery device. The polymer composite is a series of hydrogel layers, each of which serve a particular pur...	09/12/2000
6103084	Apparatus for electroporation An apparatus for electroporation stores a level of charge, specified by a user, on a capacitor, which is delivered to a cuvette through an optically isolated high voltage switch. The capacitor is charged through a charging system, including a current mode...	08/15/2000
6062261	MicrofluIdic circuit designs for performing electrokinetic manipulations that reduce the number of voltage sources and fluid reservoirs A microfabricated device and method for proportioning and mixing electrokinetically manipulated biological or chemical materials is disclosed. The microfabricated device mixes a plurality of materials in volumetric proportions controlled by the electrical...	05/16/2000
5779869	Low fog electrophoresis device An electrophoresis device consists of a housing which has opening(s) for the movement of gases from inside the housing to outside the housing and opening(s) for the movement of gases from outside the housing to inside the housing, whereby the condensation...	07/14/1998
5650055	Electrophoresis separation method and apparatus using barrier separation and polarity reversing The method and apparatus for preparative electrophoresis is especially useful for proteins. An electrophoretic potential with an initial polarity is applied across an electrophoretic medium (13) to induce at least two species of macromolecules (1,2) in a ...	07/22/1997
5616227	Method for extending the life of electrophoretic gels A method for extending the useful lifetime and improving the reproducibility of electrophoresis gels, particularly gel-filled capillaries. The polarity of the applied electric field imposed across the gel is periodically reversed between one or more elect...	04/01/1997
5541420	Multi-sample fraction collector by electrophoresis The fraction collector according to the present invention comprises a separating means composed of electrophoresis tracks to separate samples by electrophoresis, and a transferring means to transfer the separated components eluted from said electrophoresi...	07/30/1996
5460709	Automatic electrophoresis method and apparatus An electrophoresis apparatus for automatically performing medical assays includes an electrophoresis platform which cooperates with a gantry assembly. The electrophoresis platform and the gantry assembly are movable along paths that are perpendicular to e...	10/24/1995
5342497	Electrophoresis system The invention provides an electrophoresis system which separates charged chemical substances by means of applying an electrical potential across a buffer solution which includes those chemical substances. The system of the invention includes a power suppl...	08/30/1994
5340461	Electrophoretic medium for electrophoretic separation, gel holder for holding the same medium, slab type electrophoretic apparatus using the same medium and gel holder, and electrophoretic gel cutter An electrophoretic medium best suited as a separation medium is composed of a gel solution and contains a water-soluble polymer and permits great improvement of the enzymic protein recovery character. A gel holder is provided with stopper members and thus...	08/23/1994
5328581	Electrophoresis temperature feedback controller A method of (and apparatus for) electrophoresis in which the gel temperature is controlled automatically. A sensor may measure a gel temperature and a processor may control a power supply for the electrophoresis process in response to that measurement. Me...	07/12/1994
5242568	Electrophoresis apparatus Electrophoresis apparatus comprising a base including a water jacket, a generally horizontal bottom plate having an upper surface, and a lower surface which is supported by the base and which extends over the water jacket, an endless gasket having a lower...	09/07/1993
5185071	Programmable electrophoresis with integrated and multiplexed control A user programmable device for horizontal gel eletrophoresis is provided. This device can both accurately and programmably control: (a) the angle between electrical field and gel by use of a rotatable gel bed, (b) magnitude of the electrical field, and (c...	02/09/1993
5183101	Circulating chiller for electrified solutions A buffer solution being used in an electrophoresis cell as both an electrode buffer and a cooling medium is circulated through a refrigeration system external to the cell without risk of arcing or other danger despite the electrified state of the buffer s...	02/02/1993
5165898	Electrophoresis using contour-clamped electric fields A gel electrophoresis method and apparatus is described in which the shape and orientation of the electric field is controlled by contour clamping. Electrodes are arranged around a closed contour. Two or more electrodes, the driving electrodes, are clampe...	11/24/1992
5158661	Electrophoresis temperature control apparatus Electrophoresis apparatus comprising an electrophoresis device including an electrophoresis chamber for containing a solid matrix electrophoresis medium and an electrically conductive fluid, a structure for establishing an electric field in the fluid and ...	10/27/1992
5104512	Gel electrophoresis system An electrophoretic system is provided which allows for carrying out electrophoresis while monitoring and regulating the temperature and the electrical field gradient in the gel. In addition, photometric monitoring is provided so as to monitor the progress...	04/14/1992
5055172	Electrophoresis control system with wide dynamic range The invention provides an electrophoresis system which separates charged chemical substances by means of applying an electrical potential across a buffer solution which includes those chemical substances. The system of the invention includes a power suppl...	10/08/1991
4911817	Electrophoresis apparatus In an apparatus for electrophoresis, using a support for a gel and a liquid buffer, a plurality of driving electrodes arrayed in spaced relation to one another so as to contact the medium, and a plurality of sensing electrodes arrayed in spaced relation t...	03/27/1990
4375401	Electrophoresis system An improved electrophoresis system for simple, rapid and reproducible separations of biological materials such as proteins, nucleic acids, cells, bacteria, cell organelles, etc. is described. The system consists of several subsystems including a first dim...	03/01/1983

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Class 204/607 - With control means responsive to sensed condition