339 results about "Collection sample" patented technology

A tube assembly, system and method for biological waste containment for sample collection, and for ultrafiltration collection. In one embodiment, the tube assembly of the present invention includes a first tube, a second tube, a mechanism for securing the first and second tubes, and at least one container for operable connection to one or both of the first and second tubes. The securing mechanism orients the first ends of the first and second tubes in a manner such that the first end of the first tube extends beyond the first end of the second tube an interstitial space is created between the outer diameter of the first tube and the inner diameter of the second tube. The tubing mechanism is utilized for retrieval of a biological fluid through the first tube, flushing the first tube and the second tube with a rinse solution, and extraction of waste through the second tube into a waste container. The tubing mechanism is also utilized for retrieval of collection samples with the addition of a vacuum source and sealed manifold.

This invention describes a multi-stage pre-concentrator device for use with a detector system. One pre-concentrator stage is detachable and may be used to collect sample remotely from the detection system. The detachable pre-concentrator stage mates with the detector system and can transfer its desorbed sample to another pre-concentrator stage which also incorporates the functions of a sample loop serving as an injection volume to the separation column of an analytical instrument. In one embodiment the fixed pre-concentrator stage serves as a sample loop that preferably integrates suitable valves with sorbent materials onto the same structure to minimise dead volume, maximise sensitivity, improving column loading efficiency, reducing duty cycles and minimising detection system response time.

Methods and apparatus for evaluating the quality of an environment or process by measuring light emitted from a bioluminescent sample containing ATP, ADP, or alkaline phosphatase. The apparatus comprises a sample collection and analysis system used to collect a sample, mix reagents, react the sample, and collect it in a measurement chamber. The system includes an instrument having a photon detection assembly for use with the sample testing device and one or more probe assemblies that optically cooperate with the instrument. The instrument includes a dark chamber with a reflective interior surface which may be concave or preferably spherical, and a photon detection sensor such as a multi-pixel photon counter sensor. A substantially transparent portion of the probe assembly, and liquid contained therein, focus bioluminescence toward the photon detection sensor.

The present invention provides a method and a device that utilizes capillarity-mediated, chromatographic transport, for the qualitative or semi-quantitative analysis of selected analytes in liquid samples. The device utilizes an applicator / collection device for collecting and administering the sample to the flow path such that reagent(s) flow through the applicator / collection device, washing the sample into the reaction pathway. The device farther utilizes an air gap between the initial location of the reagent and the reaction pathway to funnel the reagent efficiently through the sample so as to collect all or substantially all of the sample and make it available for the reaction(s).

An automated and autonomous diagnostic apparatus that is capable of dispensing collection vials and collections kits to users interesting in collecting a biological sample and submitting their collected sample contained within a collection vial into the apparatus for automated diagnostic services. The user communicates with the apparatus through a touch-screen monitor. A user is able to enter personnel information into the apparatus including medical history, insurance information, co-payment, and answer a series of questions regarding their illness, which is used to determine the assay most likely to yield a positive result. Remotely-located physicians can communicate with users of the apparatus using video tele-medicine and request specific assays to be performed. The apparatus archives submitted samples for additional testing. Users may receive their assay results electronically. Users may allow the uploading of their diagnoses into a central databank for disease surveillance purposes.

A system and method for acquisition management of subject position information that utilizes radio frequency identification (RF ID) to store position information in position tags. Tag programmers receive position information from external positioning systems, such as the Global Positioning System (GPS), from manual inputs, such as keypads, or other tag programmers. The tag programmers program each position tag with the received position information. Both the tag programmers and the position tags can be portable or fixed. Implementations include portable tag programmers and fixed position tags for subject position guidance, and portable tag programmers for collection sample labeling. Other implementations include fixed tag programmers and portable position tags for subject route recordation. Position tags can contain other associated information such as destination address of an affixed subject for subject routing.

The invention provides a building method for a rhubarb medicinal material trueness / falseness and species prediction model. According to the model, category identification of quality rhubarb, fake rhubarb and three rhubarb species is realized on the basis of a gas chromatography-mass spectrum technology in combination with partial least square discriminant analysis. The building method comprises the following steps: (1) collecting samples; (2) preparing the samples; (3) acquiring GC-MS data; (4) performing data processing and multivariate analysis, wherein cluster analysis and principal component analysis are performed by comparing the differences of chromatographic behaviors of rhubarb of different sources; (5) building the prediction model; and (6) verifying the model. Two built category prediction models are proved to have 100 percent identification accuracy and prediction accuracy. Through adoption of the method, trueness / falseness and species identification of rhubarb are realized by modeling, so that a reliable conclusion and high integrity are achieved; the defects of an existing method are overcome; and a more feasible and reliable new thought is provided for the trueness / falseness and species identification of rhubarb medicinal materials and decoction pieces.

Methods, apparatuses and systems for facilitating automated or semi-automated collection of tissue samples cut by a microtome. In one example, a collection apparatus may be moved back and forth between respective positions at which the collection apparatus is operatively coupled to a microtome so as to collect cut tissue samples, or routine access to the microtome is provided. Relatively easy movement and positioning of the collection apparatus is facilitated, while at the same time ensuring structural stability and appropriate alignment and / or isolation between the collection apparatus and the microtome. A fluid reservoir receives samples cut by the microtome, and the collection apparatus may collect samples via a conveyor-like substrate disposed near / in the reservoir. A linear movement of the substrate may be controlled based on a cutting rate of the microtome, and the fluid level in the reservoir may be automatically maintained to facilitate effective sample collection.

A microfabricated mass-sensitive chemical preconcentrator actively measures the mass of a sample on an acoustic microbalance during the collection process. The microbalance comprises a chemically sensitive interface for collecting the sample thereon and an acoustic-based physical transducer that provides an electrical output that is proportional to the mass of the collected sample. The acoustic microbalance preferably comprises a pivot plate resonator. A resistive heating element can be disposed on the chemically sensitive interface to rapidly heat and release the collected sample for further analysis. Therefore, the mass-sensitive chemical preconcentrator can optimize the sample collection time prior to release to enable the rapid and accurate analysis of analytes by a microanalytical system.

Provided in the present invention is a method for automated detection of defects in cast wheel products, comprising three stages of sample preprocessing, offline training, and online inspection. Specific steps comprise collection of training samples; sample preprocessing; categorization of samples in three major types as spokes, rims and hubs, then processing; by means of the three sample types, spokes, rims and hubs, training a network offline, then generating online detectors for said three sample types respectively; importing the trained CNN spoke defect detector, CNN rim defect detector and CNN hub defect detector to a host computer, and locating same on an automated production inspection line; wholly automated online defect detection; output of identified detected defects by an output mode according to user requirements. The automated inspection method of the present invention is particularly robust in respect of the illumination, angle of photography and positioning that prevail during the inspection process, and, with a high degree of automation, provides accurate defect inspection with no need for the participation of an operator adjusting minor parameters.

A sampling apparatus for mercury in natural gas lines includes a source line fluidly connected to a natural gas line and configured for delivering a sample gas flow, a directional valve fluidly connected with the source line and configured for selecting a flow direction of the sample gas flow, a bypass line connected to the directional valve and configured for drawing off the sample gas, and a sample line assembly fluidly connected to the directional valve. The sample line assembly includes a plurality of sample trains, and each of the sample trains includes (i) a shut-off valve at an upper end thereof configured to control the sample flow therethrough, (ii) a measuring device at a lower end thereof configured for measuring flow therethrough, and (iii) a sample trap assembly intermediate the shut-off valve and the measuring device configured for collecting constituents in the sample gas flow. A method of using the sampling apparatus for mercury in natural gas lines is also disclosed.

A method and apparatus for measuring Tot-Hb in a sample are provided. The method comprises collecting absorbance measurements of a sample using a spectroscopic apparatus that comprises a first primary calibration algorithm for one of Oxy-Hb, “Oxy-Hb plus Deoxy-Hb”, or “Total-Hb minus Met-Hb” and a second primary calibration algorithm for one or more than one of Met-Hb, Carboxy-Hb, or Sulf-Hb, or comprising a third primary calibration algorithm obtained by adding terms of the first primary calibration algorithm and the second primary calibration algorithm together. Followed by predicting either a first value for one of Oxy-Hb, “Oxy-Hb plus Deoxy-Hb,” or “Total-Hb minus Met-Hb” and predicting second value for one or more than one of Met-Hb, Carboxy-Hb, or Sulf-Hb in the sample and add the first and second value together, or predicting a value for Total-Hb.

The present invention is a pipette tip device for extraction of liquid, semi-solid or solid solutions to be chemically analyzed and the methods for their use. The pipette tip extraction device contains a screen or filter at its lower narrow end to contain solid particulate matter and a barrier at its upper wide end. The optional upper frit is to be made of material that permits liquid solutions to flow through it. In addition to the barrier and screen, the pipette tip extraction device may contain solid-phase sorbent. Through the use of a removable cap, the pipette extraction tip may also serve as a sample collection container or tip in which samples can be delivered to the top of the tip (e.g., for direct collection of samples, including solid samples). A new method for DPX extraction using liquid-liquid-solid-phase extraction is also disclosed.

A tooth treatment device includes a detector that detects a marker of oral health and a fluid ejector that ejects fluid against teeth in response to the detected marker. The device can include a housing configured to be held on hand, the fluid ejector being positioned at an end of the housing. The fluid may include a liquid, a medicant, a cleansing solution, cleaning particles, or any combination thereof. The medicant can include any combination of a chelating agent, fluoride, a fluorescent dye, a bacterial specific probe, and a biochemical specific biomarker. Further, the device can include a servo controller controlling pressure of ejected fluid in response to the detected marker and a sensed surface condition, latter including for example, a mechanical property of tissue. The device may include a pressure sensor that senses pressure of the fluid in the ejector. Also included may be a distance sensor that senses distance of the ejector from a tissue surface. The surface condition may be sensed using the sensed pressure, sensed distance, or any combination thereof. In some embodiments, the fluid ejector comprises a stationary magnet assembly providing a magnetic field and a coil assembly, slidably disposed with respect to the magnet assembly, the coil assembly driving ejection of the fluid jet. A method of tooth treatment includes detecting a marker of oral health and controlling ejection of a fluid jet against the tooth responsive to the detected marker. In some embodiments, detecting the marker includes detecting plaque and the ejection is controlled to clean the plaque. Detecting the marker can include collecting a sample from an oral cavity.

The invention relates to an apparatus and method to obtain a bitumen or heavy oil sample from an oil reservoir sample, such as a core sample, to enable measurement of physical properties such as viscosity, API gravity, or chemical properties such as sulphur content of the obtained bitumen or heavy oil sample. The analyses performed on the samples obtained in accordance with the invention are effective in assisting oil field operators in making timely drilling and production decisions at the oil reservoir or for routine laboratory extraction of oils and bitumens. The invention also permits the collection of samples from simulated thermal recovery operations and also allows the collection of bitumens and oils for online analysis of live oil physical properties.

A collection device and methods for stimulating and stabilizing a biological sample are provided. Aspects of the device include an evacuated sample collection container having stimulating and stabilizing additives contained in separate internal chambers of the container. The internal chambers are arranged to facilitate stimulation upon collection of a sample, followed by stabilization of the sample after a desired period of time in the same sealed container. Also provided are methods for use of the subject device. The device and methods find use in a variety of different applications, including the collection and analysis of clinically relevant samples, such as whole blood and other body fluids, obtained directly from a patient.

A multiple-chamber container for sampling, storing and preserving for later testing a sample. A swab having a foam tip is used to collect a sample (the sample must have some liquid component, e.g., saliva, urine, blood, etc.). After the foam tip is used to collect a specimen, the swab is inserted into the container where the foam tip is compressed and a portion of the specimen that was sampled is diverted into each chamber. The swab is locked into the container thereby sealing the specimen inside. At least one test strip is positioned inside one of the chambers to test the sample. The sample in the other chamber(s) are separated and can be stored for a period of time. A preservative may be used to help keep the specimen during storage.

A method of investigating a solid sample, in particular a geological sample, such as a borehole core sample, includes the steps of positioning the sample on a sample support device, positioning a hyperspectral camera device, so that a line-shaped surface region of the sample is covered by a field of view of the hyperspectral camera device, illuminating the sample on the sample support device, moving the hyperspectral camera device and the sample support device relative to each other, wherein the field of view of the hyperspectral camera device is moved along a scanning direction over the surface of the sample, and collecting a hyperspectral image of the sample during the moving step, wherein the hyperspectral image is composed of multiple hyperspectral line images.

A portable multi-tube air sampler device for capturing samples of trace elements in a suspected contaminated environment which includes a plurality of sample tubes for collecting sample trace elements, parallel inlet and outlet manifolds which minimize the length of the sample inlet path while utilizing short straight sample tubes, a hinged retainer bar mechanism which allows for easy removal and replacement of the various sample tubes, and a removably attachable controller unit which can be installed on the exterior portion of the carrying case for controlling the operation of the sampling protocol. Other embodiments include heated inlet manifold and sample intake paths to prevent contamination accumulation and carryover, a clean cycle option with a filter valved into the inlet flow path to enhance the purging cycle, and a mechanism for converting the present device to a desorbing auto sampler configuration. The present system likewise incorporates a purging cycle prior to each sampling cycle.

An aquatic particle sampling and collection apparatus comprising a tube within a tube cylindrical collection system wherein an inner tube is housed within an outer tube wherein the outer tube has a front end that is flared in a frustum shape to collect water. The inner tube defines an open chamber lined with a net or other collection apparatus which concludes with a conical cod end. An axial flow pump is situated within the collection system to facilitate the movement of water through the system thereby drawing particles in to be collected. The apparatus is paired with a subsea vehicle that allows for controlled collection and sampling. In various embodiments, the apparatus can be used to collect both bio particles such as plankton and non-bio particles such as plastics from the ocean. Where sampling is desired, the apparatus may include a disk after the conical cod end upon which the samples are collected.

A modular aerosol sample detection system is provided comprising a sample collector couplable to an aerial vehicle and provided with at least one retrievable collection sample plate, which controllably rotates to collect aerosol samples on a multiplicity of collection spots arranged in multiple concentric tracks on the collection disk, and a multi-channel TOF removably couplable to the collection sampler to analyze the collected samples.

The disclosure provides a device and a method for performing morphological analysis for erythrocytes, wherein the method for performing morphological analysis for erythrocytes comprises: collecting a morphological image of each of cells in a sample through a Charge Coupled Device (CCD) after amplifying the sample through an automatic microscope; segmenting and positioning the image and extracting target feature parameters after digitizing the image through an image-digital converter; isolating morphological feature parameters of each of the erythrocytes through a classifier established on the basis of the neural network, and normalizing each type of the morphological feature parameters of the erythrocytes through a feature fusion device established on the basis of fuzzy clustering; performing a statistical analysis on each type of normalized parameters obtained or performing a comprehensive statistical analysis according to a plurality of types of parameters, and expressing the result of the statistical analysis or the comprehensive statistical analysis in the form of graph or numerical table, thereby judging whether the morphology of the erythrocyte is normal. The source and property of the erythrocytes can be identified according to the detection for each type of the erythrocytes with the abnormal morphology.

A method of operating a scanning probe microscope (SPM) includes scanning a sample as a probe of the SPM interacts with a sample, and collecting sample surface data in response to the scanning step. The method identifies a feature of the sample from the sample surface data and automatically performs a zoom-in scan of the feature based on the identifying step. The method operates to quickly identify and confirm the location of features of interest, such as nano-asperities, so as to facilitate performing a directed high resolution image of the feature.

Disclosed is a device, for detecting an analyte in a sample, comprising a sample pad for collecting the sample, a test strip coupled to the sample pad, and a housing enclosing and allowing visualization of the test strip. The sample pad can include one or more markings for determining the amount of sample collected. The device can also include a run fluid container that fits over the sample pad and forms an air-tight seal around the housing. Further, the device can include a second sample pad / test strip combination for detection of a second analyte. Also disclosed are methods for detecting an analyte in a sample using the device.

A system and process for chromatography that uses a chromatography column to separate components from a sample received into the column in a mobile phase flowstream and places a second chromatography column between a detector and a collection system that compensates the timing of fraction collection for a delay caused by processing the collection signals generated by the detector. The device and process of the preferred and alternative embodiments add a delay into the flowstream of a chromatographic system, such as LC, HPLC, and SFC. Sample fractions are collected from sample component concentration peaks based upon the chromatographic elution of the sample components.

The present invention is directed methods for collecting and storing samples compatible for high throughput automation. The present invention is also directed to a device comprising: (a) a plate containing multiple wells, and (b) multiple rubber covers; wherein each rubber cover is (i) an integral part of the device, (ii) is on top of each well and individually seal each well, and (iii) has a pierceable area in the center of the cover. The device is suitable for collecting, storing, transporting, and tracking samples compatible for high throughput downstream automated processing.

The invention belongs to the field of biological and medical detection, and relates to a system for separating CTCs (circulating tumor cells) in a blood sample from a mixed cell group in high purity. The separation system for the CTCs comprises a sample preparation module, a sample injection module, a first micro-fluidic chip, a release module and a collection module, wherein the sample preparation module is used for processing blood into a detection sample; the sample injection module is used for injecting the detection sample into the first micro-fluidic chip; the first micro-fluidic chip is used for extracting the CTCs in the detection sample; the release module is used for separating the CTCs from the first micro-fluidic chip and obtaining a collection sample; and the collection module is used for collecting the collection sample. According to the technical scheme, compared with the prior art, the separation system for the CTCs is simple, easy to implement, lower in cost, simple to operate and high in automation degree.

An assembly and an associated method for collecting a sample of material desired to be characterized with diagnostic equipment includes or utilizes an elongated member having a proximal end with which the assembly is manipulated by a user and a distal end. In addition, a collection tip which is capable of being placed into contact with the material to be characterized is supported upon the distal end. The collection tip includes a body of chemically-inert porous material for binding a sample of material when the tip is placed into contact with the material and thereby holds the sample of material for subsequent introduction to the diagnostic equipment.