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Class 204/409 - With means providing specified-flow condition or flow-path


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Apparatus which is designed to provide a particular flow-path
No. of patents: 452
Last issue date: 04/23/2013


1                      
NumberTitleIssue Date
8425745Electrochemical nanosensors for biomolecule detection
Sensor devices, methods and kits for detection of biomolecules are provided. According to various embodiments, the devices, methods and kits provide enhanced sensitivity through the measurement of electrochemical impedance and related properties. Certain embodiments...
04/23/2013
8268146Measurement of hydrogen sulphide and thiols in fluids
A wellbore tool has an electrochemical sensor for measuring the amount of hydrogen sulphide or thiols in a fluid downhole in a wellbore. The sensor comprises a temperature- and pressure-resistant housing containing a flow path for the fluids. The fluids flow over on...
09/18/2012
8236257Biological component-measuring device and method for calibrating the same
This invention provides a biological component-measuring device, enabling the operator to easily calibrate the entire device and capable of measuring biological components accurately, and a method for calibrating the device. The device measures a sample including a ...
08/07/2012
8206566Electrochemical measurement system for the trace heavy metals in organic waste water
Disclosed herein is an electrochemical measurement system for analyzing heavy metals in organic compound-containing samples, comprising: a lower plate; a flow channel plate; an upper plate; an organic compound-decomposing electrode and a heavy metal analysis electro...
06/26/2012
8105469Microelectrode array
Microelectrode comprising a body formed from electrically non-conducting material and including at least one region of electrically conducting material and at least one passage extending through the body of non-conducting material and the region of conducting materi...
01/31/2012
8021529Ion measurement/calibration cell
A measurement/calibration cell for potentiometrically measuring ion concentration in a fluid interposes a barrier between measuring and reference electrodes and positions the measuring electrode at a sufficiently higher gravimetric potential above the reference elec...
09/20/2011
7758734Methods and apparatus for the measurement of hydrogen sulphide and thiols in fluids
An electrochemical sensor for measuring the amount of hydrogen sulphide or thiols in a fluid in a wellbore comprises a temperature- and pressure-resistant housing containing a flow path for the fluids. The fluids flow over one side of a gas permeable membrane made o...
07/20/2010
7678251System and method for detecting gas
A system to detect a presence of a specific gas in a mixture of gaseous byproducts comprising moisture vapor is disclosed. The system includes an electrochemical cell, a transport to deliver the mixture of gaseous byproducts from the electrochemical cell, a gas sens...
03/16/2010
7569128Coulometric water vapor sensor
A sensor for detecting water vapor in a gaseous sample. The sensor comprises (a) an anode, (b) a cathode, (c) an electrolyte intermediate the anode and cathode, and (d) an inlet orifice through a central area of the anode or cathode through which the gaseous sample ...
08/04/2009
7556725Sealing ring assembly and mounting method
A sealing ring assembly and an improved method for mounting a sealing ring into an electrochemical cell used for Electrochemical Capacitance Voltage (ECV) profiling measurements. The ring is located in a holder having at least one secondary bore providing fluid comm...
07/07/2009
7513983Insulator electrode devices
Methods and insulator electrode devices for performing electrochemical reactions are disclosed. The devices consist of high specific surface area electrodes based on a channeled conducting base material that has been coated with an organic or inorganic insulating fi...
04/07/2009
7438792Separation system with a sheath-flow supported electrochemical detector
An electrochemical detector including side channels associated with a separation channel of a sample component separation apparatus is provided. The side channels of the detector, in one configuration, provide a sheath-flow for an analyte exiting the separation chan...
10/21/2008
7435320Methods and apparatuses for monitoring organic additives in electrochemical deposition solutions
The present invention relates in general to real-time analysis of electrochemical deposition (ECD) metal plating solutions, for the purpose of reducing plating defects and achieving high quality metal deposition. The present invention provides various new electroche...
10/14/2008
7407566System and method for sensing using diamond based microelectrodes
A method and system is disclosed for monitoring one or more characteristics associated with a fluid. An insulating layer comprising non-conducting diamond is positioned within a housing and has a surface exposed directly or indirectly to the fluid. A plurality of mi...
08/05/2008
7399401Methods for use in assessing a flow condition of a fluid
A device for use in assessing a flow condition of a fluid, or a fluid in a flow path, is provided. The device comprises at least one electrochemical cell, comprising a working electrode and at least one other electrode, sufficient for communication with the fluid, o...
07/15/2008
7371247Method and apparatus for penetrating tissue
A tissue penetrating system includes a plurality of penetrating members each having a tip. A penetrating member driver is coupled to the plurality of penetrating members. Each tip of a penetrating member is uncovered during launch of the penetrating member by the pe...
05/13/2008
7364647Laminated flow device
A laminated flow device comprises a porous material encapsulated within bonding material. The porous material forms a flow path and the bonding material forms an enclosure surrounding the flow path. Micro-components, such as capillaries, electrodes, reservoirs, brid...
04/29/2008
7340966Sensor with water ingress protection
A gas monitoring system that comprises a sensor, a first valve, and a second valve. The sensor is disposed within a sensor housing that has an inlet and an outlet. The sensor generates a signal based on a characteristic of a gas within the housing. The first valve i...
03/11/2008
7335292Sensor with improved shelf life
The present invention provides a metal electrode stabilized by a coating, the coating comprising a sulfur containing moiety in its molecular structure. The coating may also include a hydrophilic group and a spacer between the sulfur containing moiety and the hydroph...
02/26/2008
7331931Method and apparatus for penetrating tissue
These and other objects of the present invention are achieved in a body fluid sampling system for use on a tissue site that includes an electrically powered drive force generator. A penetrating member is operatively coupled to the force generator. The force generato...
02/19/2008
7325555Rinsing device for a sensor probe
A rinsing device for a sensor has a cylinderlike rinsing chamber which has an anterior chamber part connectable to a measuring fluid container and which is configured to receive an immersion tube that contains a sensor and is coaxial with as well as movable along th...
02/05/2008
7323140Moving microdroplets in a microfluidic device
The present invention relates to a system and method for moving samples, such as fluid, within a microfluidic system using a plurality of gas actuators for applying pressure at different locations within the microfluidic. The system includes a substrate which forms ...
01/29/2008
7316700Self optimizing lancing device with adaptation means to temporal variations in cutaneous properties
A lancing device, an embodiment of which controls the advancement and retraction of a lancet by monitoring the position of the lancet in conjunction with a lancet controller which incorporates a feedback loop for modulating the lancet driver to follow a predetermine...
01/08/2008
7314453Handheld diagnostic device with renewable biosensor
A handheld diagnostic device having a test head and a handle is equipped with an open test channel having sensors and liquid reagent dispensing opening for the diagnostic testing of body fluids. The test channel can draw in fluid sample by capillary force and be clo...
01/01/2008
7314542Methods and materials for optimization of electronic transportation and hybridization reactions
Methods for the transport and hybridization of a nucleic acid on an electrode device by providing a low conductivity buffer with a reducing agent to the device. The low conductivity buffer may also contain a zwitterion. A current and voltage is applied to a location...
01/01/2008
7297241Method and a device for monitoring a medical microsample in the flow measuring cell of an analyzer
The invention relates to a method and device for the monitoring of a medical microsample in the flow measuring cell of an analyzer with regard to position and absence of bubbles by means of an alternating voltage applied to the measuring cell, the measuring cell bei...
11/20/2007
7291117Method and apparatus for penetrating tissue
These and other objects of the present invention are achieved in a body fluid sampling system for use on a tissue site that includes a voice coil based penetrating member driver. A plurality of penetrating members are included. A transport mechanism is configured to...
11/06/2007
7287318Biosensor
A biosensor is provided that comprises a plate element with a pre-determined reaction zone and a recess positioned adjacent to the reaction zone. The biosensor also comprises a reagent that is positioned on the reaction zone. In preferred embodiments, the recess cir...
10/30/2007
7282241Patterned, high surface area substrate with hydrophilic/hydrophobic contrast, and method of use
Nanoporous structures are constructed that have hydrophilic regions separated by hydrophobic regions. The porous, hydrophilic regions have reaction sites suitable for use in a bioassay application and have a higher density of reaction sites than that of a non-porous...
10/16/2007
7278210Method for producing a 3-D microscope flow-through cell
The invention relates to a method of producing a 3-D microscope flow-through cell, consisting of an upper and a lower substrate between which is located a flow channel, an electrode structure penetrating the flow channel and connected with external contacts and with...
10/09/2007
7267751Programmable multiplexed active biologic array
The present invention is directed to devices and methods for carrying out and/or monitoring biological reactions in response to electrical stimuli. A programmable multiplexed active biologic array includes an array of electrodes coupled to sample-and-hold circuits. ...
09/11/2007
7258693Device and method for variable speed lancet
A method of penetrating tissue is provided. The method comprises using a lancet driver to advance a lancet into the tissue; advancing the lancet at a first desired velocity in a first layer of tissue; advancing the lancet at a second desired velocity in a second lay...
08/21/2007
7250602Probe device
A probe device comprises a cantilever comprising a probe allocated to be opposed to a surface of a sample, means for feeding back a vibration amplitude value of the cantilever, thereby self-exciting and vibrating the cantilever at a predetermined frequency, means fo...
07/31/2007
7244265Method and apparatus for penetrating tissue
These and other objects of the present invention are achieved in a body fluid sampling system for use on a tissue site that includes a drive force generator and a penetrating member operatively coupled to the force generator. The force generator moves the member alo...
07/17/2007
7244345Electrochemical method and sensor for the detection of traces of explosives
A system for highly sensitive electrochemical detection of trace nitro-aromatic compounds in air, uses a carbon or carbon/gold working electrode with a surface that is modified to increase the electron transfer kinetics of nitro-aromatic compounds. Chemical modifier...
07/17/2007
7232451Method and apparatus for penetrating tissue
A skin penetrating system has a housing member and a plurality of penetrating members positioned in the housing member. A tissue stabilizing device is coupled to the housing member. A user interface is configured to relay at least one of, skin penetrating performanc...
06/19/2007
7229458Method and apparatus for penetrating tissue
A tissue penetrating system includes a plurality of cartridges each with a distal port and a proximal port. A plurality of penetrating members are provided, each coupled to a cartridge and having a sharpened distal tip and a shaft portion slidably disposed within th...
06/12/2007
7229538Microfluidic device with network micro channels
A microfluidic device has a plurality of H-shaped micro channels not connected to each other and formed on a substrate. Each of the H-shaped micro channels comprises two main channels separately placed on two opposite sides in parallel and a plurality of sub-channel...
06/12/2007
7226461Method and apparatus for a multi-use body fluid sampling device with sterility barrier release
A device for use with a gripper is provided. A cartridge is provided that defines a plurality of cavities. A plurality of penetrating members are at least partially contained in the cavities of the cartridge. The penetrating members are slidably movable to extend ou...
06/05/2007
7226562Liquid analysis cartridge
The present invention provides an apparatus and method for storing a particle-containing liquid. The storage apparatus comprises a microfluidic convoluted flow channel having a plurality of particle capture regions. The storage channel is preferably an isotropic spa...
06/05/2007
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