75 results about "Selective isolation" patented technology

Apparatus, methods, and kits, are provided for use in combination with a conventional bronchoscope or other lung viewing scope. In particular, sheaths having an inflatable cuff at their distal end are provided to receive a viewing scope through a lumen thereof. The sheaths thus provide an inflatable cuff on a viewing scope assembly so that the scope can be used in procedures which require selective isolation of regions of a patient's lungs. In particular embodiments, the sheaths may include stop elements for properly positioning a viewing scope therein, pressure transducers for providing accurate lung pressure information during procedures, and the like. Methods for using and forming sheaths having inflatable cuffs are also described.

Selective isolation of a zone within a slotted liner completion of a wellbore is accomplished by expanding the original slotted liner to the full inner diameter of the wellbore into the annular area normally found around slotted liners. At least one solid tubular is run into the expanded area of the slotted liner and expanded at least in that section of the wellbore to be isolated. A custom expandable slotted liner can be run and expanded within the existing expanded slotted liner if excessive splits or rips should occur in the existing slotted liner due to expansion. Epoxies, rubber, or other sealing materials can also be utilized to better effect a seal between the liners.

The invention provides novel mesoporous particles and methods for the selective sequestration of organic compounds from microorganisms, such as from various genera and species of algae that produce important organic compounds. The organic compounds can be selectively sequestered, for example, in favor of biodiesel impurities such as sterols and chlorophyll, to provide substantially pure free fatty acids. The free fatty acids can then be esterified to provide pure biodiesel.

A filtration and selective fluidic recovery device comprises a housing having an inlet and an outlet. The housing has an opening extending from the inlet to the outlet and an internal support structure maintained in the opening. At least one planar filtration media is carried by the internal support structure where the media separates feedwater received at the inlet into at least a permeate and a concentrate that separately exit at the outlet.

An uninterruptible power supply wherein an isolation device is automatically tested during normal operation to ensure that it is capable of effectively isolating the input from an auxiliary power supply during emergency operation. The uninterruptible power supply includes an input for coupling to a main power supply, an output for connection to an electrical load, an auxiliary power supply and a selective isolation device configured to isolate the auxiliary power supply from the input during emergency operation. First components establish a reverse polarity across the isolation device for a test period during normal operation, and second components monitor a voltage proportional to the input voltage to the isolation device and output an error signal if the monitored voltage remains or rises above a first reference value during the test period.

A system and method for actuating a shut-off valve in a wellbore wherein the shut-off valve element can be positively closed before the pump is removed from the well. A hydraulic actuator component is operably associated with the shut-off valve to provide for selective isolation of the well by positive closing of the valve prior to removal of the pump and opening of the valve after replacement of a pump within the wellbore. The hydraulic actuator component has a balanced hydraulic design wherein the valve closure element may be moved toward an open or closed position by flow of hydraulic fluid through first and second hydraulic lines. When a repaired pump or replacement pump is placed into the well, the actuator is stabbed into a packer element to seat it. The hydraulic actuator assembly is then operated to open the shut-off valve, thereby reestablishing well operation.

The invention provides a single-phase grounding protection method which is used for judging and isolating a single-phase grounding fault of a small-current grounding system. The single-phase grounding protection method comprises the following steps of: 102, synchronously acquiring the power frequency voltage of a bus of the small-current grounding system and current traveling waves of all outgoing lines corresponding to the bus in real time; 104, when the small-current grounding system is disturbed, determining a disturbance outgoing line according to the current traveling waves of all the outgoing lines; 106, determining whether the small-current grounding system has the single-phase grounding fault according to the power frequency voltage; and 108, determining that the disturbance outgoing line is a faulted outgoing line if the small-current grounding system has the single-phase grounding fault, sending a tripping instruction and insolating the faulted outgoing line. Correspondingly, the invention also provides a single-phase grounding protection system. By the single-phase grounding protection method and the single-phase grounding protection system, a requirement for judging the single-phase grounding fault of the small-current grounding system and a requirement for quick, reliable, sensitive and selective isolation can be met.

Embodiments of the present techniques provide systems and methods for isolating particular classes of biological molecules, for example, proteins or nucleic acids, from mixtures of biological components. The methods use solutions that react with the biological molecules to enhance their adsorption by substrates, allowing contaminants to be washed away from the targeted molecules. Embodiments include automated systems that can be used to implement the technique with no or minimal intervention. Other embodiments include separation column technologies that may be used in the techniques.

A package having two or more selectively isolated compartments and a mixing region is disclosed. A mixing region can be included between the mixing compartments, with respective access devices (e.g., zipper or film member) provided to provide selective communication between the compartments and the mixing region. One or more pull members can be included on the exterior of the package such that pulling on the tabs opens the access devices to facilitate communication between the compartments and their respective contents.

A lung isolation system configured for selective isolation and ventilation of the lung in conjunction with a standard endotracheal tube. The system includes an expandable bronchial isolation tube comprising a collapsible nitinol frame, a bifurcated adapter, and a steerable optical stylet.

A method and device for electronically controlling the spatial location of charged molecules is described. The method disclosed pertains to controlling the spatial location of charged molecules in a reaction unit wherein a plurality of electrodes are placed, wherein the geometry of electrode placement is closed system such as circular, rectangular or diamond-shape. This control extends to the selective isolation of individual species of charged molecules as well as their transport. The invention is useful in molecular biological reactions, such as nucleic acid hybridizations, nucleic acid amplification, sample preparation, antibody/antigen reactions, clinical diagnostics, and biopolymer synthesis.

A control system of modular seabed processing unit (100) using one of a process module as a test separator comprising a system-module (110) to which external lines are connected, the system-module (110) includes a first portion (31) of the system-module isolating and connecting means (30), for acting on received fluid. At least one inlet flow line (21) and at least one outlet flow line (81) being connected to the first portion (31) of the system-module isolating and connecting means (30) for selective isolation of system-module from, or connection of the system-module to the external flow lines by means of a second complementary portion (32) of a manifold (130). The connecting means (30) with which the first portion (31) of the system- module isolating and connecting means (30) is adapted to engage.; The system-module includes control means (60) for controlling operation of the system-module characterized in that the system-module (110) includes at least one actuating means (121) connected to a control means (60) wherein the actuating means (121) of the system-module (110) associated with diverter valve (131) situated at a manifold (130). The diverter valve (131) is connectable and disconnectable to fluid carrying conduits from production well (160, 170) and is enabled to control the direction of fluid flow into the system-module. The control means (60) is in communication with a master control station (150).; The temperature and/ or pressure measuring means (61, 62, 63, 64) and valves (36, 37) connected to control means (60) by control line (65) which is adapted to transmit process values to a host platform (140) and to receive the control signals from the host platform (140) via umbilical (80) through a power connector (70). Sensing means to measure pressure, temperature and flow parameter; and the um means 54 to boost the fluid to host 81 via outlet flow line (23).

The present invention describes a method of selective peptide isolation for the identification and quantitative analysis of proteins in complex mixture. The method comprises the selective isolation from every protein of those peptides that neither contain arginine nor histidine (NHNR peptides), and the determination of the relative concentrations of one or several proteins in different samples from the ratio between the areas of the estimated theoretical spectra for the NHNR peptides labeled with different isotopes in each sample. The determination of the relative concentration of proteins is valid for any type of isotopic label of the NHNR peptides. The method avoids the separation and purification of the proteins present in a complex mixture, and the analysis of all peptides generated from the enzymatic digest of the samples. The method is applicable to the identification of proteins with vacunal, therapeutic and diagnostic aims.

The invention discloses an unsymmetrical fault relay protection method of a distributing line, which comprises the steps of firstly performing fault detection and detecting whether faults occur on the distributing line based on the current and the voltage; secondly performing unsymmetrical fault recognition and recognizing whether the faults are unsymmetrical faults based on the relation between three-phase current and the voltage; thirdly performing fault direction judgments and judging fault directions based on the relation between the voltage and the current; fourthly performing time limiting protection which comprises time limiting excess current protection and time limiting low voltage protection, measuring a relation motion of the current and the setting current, and measuring a relation motion of the voltage and the setting voltage; and fifthly performing mutation protection which comprises current mutation protection and voltage mutation protection and judging whether a mutation motion of the voltage or the current occurs based on a setting time and within a setting time range. The unsymmetrical fault relay protection method of the distributing line can achieve rapid and selective isolation of unsymmetrical faults of single-power supply type and radial distributing lines.

A system for sampling and/or conditioning a process gas such as natural gas or the like with selective isolation capability. The preferred embodiment of the present invention is designed to be OSHA compliant, contemplating a system to insert, retract, maintain and service analytical sample conditioning components or the like in fluid communication with a pressurized pipeline, but upstream an isolation component such as, for example, a double block and bleed sample valve or the like. The preferred embodiment of the present invention thereby provides an apparatus and method for selective isolation of existing or potential hazardous energies which may be associated with the pressurized pipeline and fluids therein from upstream the modular sample component(s) or the like therein.