52 results about "Fluid specimen" patented technology

The utility model provides a microfluid sample detection device which comprises a fluid inlet, a microfluid channel, a fluid outlet, a reaction area, a liquid collecting area, a pump body and a valve body, the valve body comprises a substrate, a double-sided colloid and a flexible diaphragm, a cavity is formed between the upper surface of the plastic substrate and the lower surface of the flexible diaphragm, the cavity is opened when the flexible diaphragm is loosened, and the cavity is closed when the flexible diaphragm is tensioned; the valve body comprises a first valve body, a second valve body, a third valve body and a fourth valve body, the second valve body and the third valve body are arranged between the pump body and the microfluid channel and located on the downstream portion of the first valve body, and the working states of the third valve body and the fourth valve body are opposite. Moreover, the parallel scheme further comprises a conductive system composed of electrodes, the conductive system at least comprises two electrodes, and the electrode sensing ends are located at the two ends of the reaction area respectively. The microfluidic sample detection device is loaded in a detection device to form a microfluidic sample detection system.

The utility model provides a microfluid sample detection device and a microfluid sample detection system. The microfluid sample detection device comprises a fluid inlet, a microfluid channel, a fluid outlet, a reaction area, a liquid collecting area, a pump body, a valve body and a lock body, the valve body comprises a substrate, a double-sided colloid and a flexible diaphragm, a cavity is formed between the upper surface of the plastic substrate and the lower surface of the flexible diaphragm, the cavity is opened when the flexible diaphragm is loosened, and the cavity is closed when the flexible diaphragm is tensioned; the valve body comprises a first valve body and a second valve body, the second valve body is arranged on the downstream of the first valve body, and the working states of the first valve body and the second valve body are opposite; the lock body is arranged on the downstream of the second valve body. Moreover, the parallel scheme further comprises a conductive system composed of electrodes, the conductive system at least comprises two electrodes, and the electrode sensing ends are located at the two ends of the reaction area respectively. The microfluidic sample detection device is loaded in a detection device to form a microfluidic sample detection system.

A system includes a pipeline for flowing a fluid therein and a multiphase sampler fluidly coupled to the pipeline. The multiphase sampler includes an inlet to receive a fluid sample of the fluid from the pipeline, a Tesla valve(s) coupled between the pipeline and the inlet of the multiphase sampler to direct a flow of the fluid sample into a sensing section, and an outlet to return the fluid sample back into the pipeline. The sensing section includes at least one sensor to determine a water-cut of the fluid sample. A method includes flowing a fluid through a pipeline, streaming off a fluid sample from the fluid into an inlet of a multiphase sampler, determining a water-cut of the fluid sample in a sensing section of the multiphase sampler, and directing the fluid sample back into the pipeline.

The invention belongs to the technical field of sampling, and particularly relates to a ball valve convenient for online maintenance, which comprises a sampling ball valve, the sampling ball valve comprises a connecting shell and a sampling shell mounted below the connecting shell, a sampling bottle is movably mounted below the sampling shell, and an upper sealing ring and a lower sealing ring are fixedly mounted at the inner top of a sampling cavity. A valve ball is rotatably installed between the upper sealing ring and the lower sealing ring, a water inlet and outlet pipe is fixedly installed on the two sides of the sampling shell, the valve ball comprises a fluid passing body and an abutting cover, and through rotation of the valve ball, fluid in the fluid passing body can enter a sampling bottle installed on the sampling shell through a sampling cavity and the valve ball to be subjected to subsequent detection work; purified water enters from one group of water inlet and outlet pipes and then flows out from the other group of water inlet and outlet pipes through the valve ball and the interior of the sampling cavity where the valve ball is located, so that the originally retained fluid is reduced, the online cleaning and maintenance function is deepened, and the quality of a fluid sample sampled next time is ensured.

The present application provides a kind of microfluidic sample detection device and microfluidic sample detection system, and detection equipment and microfluidic detection device electrode electrically / signal connection forms microfluidic sample detection system.Microfluidic sample detection device, including fluid inlet, microfluidic channel and fluid outlet, and reaction zone, liquid collection area, first pump body, first valve body, second valve body, third valve body and fourth valve body, the working state of third valve body and fourth valve body is opposite.First pump body, when being communicated with microfluidic channel, provides driving force for the flow of microfluidic sample;Second valve body, it is located between first pump body and microfluidic channel, and located downstream of first valve body;Third valve body, it is located between first pump body and microfluidic channel, and located downstream of second valve body.First pump body can be communicated with microfluidic channel by second valve body or / and third valve body.

A container assembly for collecting a fluid specimen including a collection container having a first end, a second end, and a sidewall extending therebetween and defining a chamber for receiving the fluid specimen. The container assembly may include a container lid couplable to the collection container to at least partially close the first end thereof. The container lid may include a sealing interface configured to at least partially contact the collection container when the container lid is coupled to the collection container. The sealing interface may include a textured sealing surface region configured to allow air into or out of the container assembly when the container lid is coupled to the collection container, while maintaining a substantially fluid-tight seal between the container lid and the collection container.

A method for delivering a fluid sample through a channel of a diagnostic consumable is disclosed. The method includes receiving the diagnostic consumable in a reader comprising a delivery system, operatively connecting the delivery system to the channel, and applying pressure pulses to the channel at a predetermined frequency. A reader for reading a diagnostic consumable is also disclosed.

In an embodiment, a fluid concentration measurement system is disclosed. The measurement system comprises a sensor device comprising a sampling and measurement unit that is configured for insertion into a fluid stream. The sampling and measurement unit is configured to obtain a fluid sample from the fluid stream and to mix a reagent with the fluid sample to form a mixed sample. The sensor device further comprises a light source that is configured to illuminate the mixed sample and an optical sensor. The optical sensor is configured to receive light from the mixed sample based at least in part on the illumination of the mixed sample and generate sensor data based on the received light. The measurement system further comprises at least one processor that is configured to obtain the sensor data and determine a concentration of a target analyte in the fluid stream based on the sensor data.

The petroleum distribution sampler comprises a driving device, a support is fixedly connected to the position, close to the bottom end, of the outer side of the driving device, a telescopic rotating rod is fixedly connected to the bottom end of the driving device, a collecting mechanism is movably connected to the bottom end of the telescopic rotating rod, a circular opening is formed in the center of the middle of the support, and a sleeve penetrates through the opening; a fixing ring frame is fixedly connected to the outer side of the top end of the sleeve, an air supply device is arranged on the left side of the fixing ring frame and fixedly connected with the support, the collecting mechanism comprises a collecting drill pipe, and the inner side of the top end of the collecting drill pipe is movably connected with the bottom end of a telescopic rotating rod. The invention relates to the technical field of oil exploitation, and has the characteristics that the practicability is high, fluid and non-fluid samples can be classified, and the influence of cold climate is relatively small.

Systems, devices, and methods for determining health characteristics are disclosed herein. In some embodiments, a method includes receiving a fluid sample from a user and transferring at least some of the biological cells of the fluid sample through a microchannel including (i) an upstream viscosity-elimination section sized to compress the biological cells and (ii) a downstream measurement section sized to keep the biological cells compressed to measure one or more elastic characteristics of the biological cells. The method can continue by measuring parameters of the biological cells at first and second detection regions of the downstream measurement section, and determining, based on the measured parameters of the biological cells at at least one of the first or second detection region, a health characteristic of the user.

The invention relates to a gas chromatograph apparatus, system and method with a modular architecture. An apparatus includes a first circuit configured to: provide a control signal for an inlet valve of a manifold plate to a second circuit of the manifold plate; receiving an attribute of the fluid sample from a third circuit of the analysis module; and determining a physical composition of the fluid sample based on the measured attribute of the fluid sample. The manifold plate includes a second circuit and an inlet valve and an inlet channel, the second circuit configured to control the inlet valve based on the control signal to direct the fluid sample from the inlet valve through the inlet channel to the analysis module. The analysis module is secured to the manifold plate and includes a gas chromatograph oven and a third circuit configured to measure a property of a fluid sample in the gas chromatograph oven using one or more sensors.

An apparatus for sampling a fluid from a flowline comprises a housing and a pressure control barrier moveably mounted in the housing. The apparatus comprises a sample chamber within the housing on a first side of the pressure control barrier and being fluidly connectable to the flowline for receiving a fluid sample from the flowline, and a pressure control chamber within the housing on an opposite second side of the pressure control barrier, wherein pressure applied within the pressure control chamber controls pressure of the fluid sample within the sample chamber. The apparatus comprises a guided wave radar device for determining a property of the fluid sample within the sample chamber.

The present invention relates to porous membrane sensor elements for detecting analytes in complex fluid samples. The porous membrane sensor element includes: a porous membrane sensor housing penetrated by a flow channel defining an axial direction; a porous membrane having a front side defining a sensor surface for contacting the fluid sample, the porous membrane comprising pores extending from respective openings of the sensor surface into the porous membrane, where the pores are configured for spatially diffusing fluid communication with the sample relative to the analyte; and an optical subassembly comprising a light guide core, the light guide core comprising an input branch, an output branch, and a coupling interface arranged to contact a back side of the porous membrane opposite the front side and facing away from the sample space; wherein the input and output branches point to the coupling interface. The input branch and the output branch are arranged in a common light guide plane arranged perpendicular to the sensor surface. According to another aspect, a sensor assembly includes a porous membrane sensor element integrated within a sample chamber thereof.

A system for detecting a target bacteria is disclosed. The system comprises a flow cytometer. The flow cytometer is configured to receive a fluid sample, wherein the fluid sample comprises at least a target bacteria and at least a contaminant bacteria. The flow cytometer is also configured to generate a first enumeration of a total bacteria in the fluid sample during a pre-incubation phase. The fluid sample is then incubated during an incubation phase. The flow cytometer then generates a second enumeration of the total bacteria in the fluid sample during a post-incubation phase. A computing device then determines a growth ratio of the total bacteria as a function of the first enumeration and the second enumeration. Finally, the computing device identifies the presence of the at least a target bacteria as a function of the growth ratio.

The present disclosure relates to a drilling spill determination method and computer program, the method comprising: determining a current gas content and an actual annulus flow rate of a fluid within a drilling annulus based on a fluid sample at a drilling casing shoe; wherein the annular space is located between the inner wall of a casing pipe of a drilled well and the outer wall of a drill rod; under the condition that the current gas containing rate is smaller than a preset gas containing rate threshold value, the current working condition is determined according to preset parameters of well drilling; determining an annulus flow velocity determination model corresponding to the current working condition according to a preset corresponding relation between the annulus flow velocity and the working condition, and determining a theoretical annulus flow velocity under the current working condition according to the annulus flow velocity determination model; and judging whether overflow leakage occurs or not according to the actual annular flow velocity and the theoretical annular flow velocity. According to the method, the accuracy of overflow leakage judgment is improved, the false alarm rate of overflow leakage judgment is reduced, the effectiveness of the method for monitoring the gas cut at the casing shoe is guaranteed, and the practicability of monitoring the gas cut at the casing shoe is improved.

A device for measuring fluid parameters may be modular or integrally formed. The device is positioned on a machine that includes one or more fluids to be monitored, and the device includes a (1) controller, (2) spacer that connects to a power source and that may include one or more connectors to connect to remote sensors, and (3) an optional manifold through which the fluid may pass. The manifold could include fluid sensors and / or be connectable to a sample bottle for the purpose of taking fluid samples.

The present invention provides a device for collecting a fluid specimen. The device comprises a water-absorbing end part formed by bonding a first porous water-absorbing film and a second porous water-absorbing film. Preferably, the second porous water-absorbing film and the first porous water-absorbing film are sponge films.

The present invention relates to an oral fluid sample collection method and device comprising: a shroud having a first face and a second face; an elastomeric nipple having an outer surface and defining a nipple interior, the elastomeric nipple extending from the first face of the shroud; and a reservoir component comprising a reservoir having a reservoir interior extending from the second face of the shroud. The elements are interconnected by a plurality of fluid conduit / valve combinations, including a first combination allowing flow from the nipple interior to an atmospheric vent port disposed on an outer surface of the oral fluid collection device; a second combination allowing flow from the reservoir interior to the nipple interior; and a third combination allowing flow from a collection port disposed on the outer surface of the nipple to an exit port in the reservoir interior.

Provided herein are fluid sample collection devices, particularly, saliva sample collection devices, and methods of using them. In certain embodiments, the fluid sample collection device comprises: a first portion and a second portion, the two portions removably joined together, wherein each of the first portion and the second portion comprises a casing configured to removably accommodate an adsorbent sample collection pad. Each adsorbent sample collection pad comprises a sample collection element and a longitudinal element, which fits in a longitudinal groove of the casing. The casings removably connect with each other via connection elements to form the fluid sample collection device. In some embodiments, the adsorbent sample collection pad comprises an indicator dye, which provides a signal when contacted with a sample. In some cases, the first and / or the second portion comprise a holding element for a user. Methods of collecting saliva samples using the collection devices are also described.

Various examples of systems and methods are provided for slide processing. In one example, among others, a system for processing microscope slides includes a slide positioner that can adjust a position of a slide and a slide treatment system that can dispense a micro stream of a fluid at a location on the slide when the slide is positioned beneath a jet nozzle of the slide treatment system. The system can include a slide sled that can align a smearing slide with a surface of the slide including a fluid sample is disposed, and support the smearing slide at a predefined angle with respect to the surface of the slide. In another example, a method includes obtaining a slide including a sample disposed on a surface, positioning the slide below to a jet nozzle, and dispensing a micro stream of a fluid onto the sample using the jet nozzle.

Absorbance spectroscopy methods and systems are disclosed including a spectroscopy analyzer, comprising: an optical element device positioned to receive an analysis light that passes through a sample of a fluid specimen from an illumination unit, the analysis light including first light in a first light range and second light in a second light range different than the first light range, the optical element device comprising: a housing assembly that defines an internal space; and a dichroic mirror-reflector within the internal space positioned to receive the analysis light, the dichroic mirror-reflector configured to filter the analysis light such that a first portion of the analysis light in the first light range is reflected off the dichroic mirror-reflector as a spectrometer light, and such that a second portion of the analysis light in the second light range passes through the dichroic mirror-reflector as a detector light.

A described example relates to a system that includes a microfluidic device and an impedance analyzer. The microfluidic device includes a microchannel extending through a portion of a housing. The microchannel is configured to receive a fluid sample including blood cells that flows along in a direction of fluid flow through the microchannel. The microchannel includes a plurality of micropillar arrays along the direction of fluid flow, and each of the plurality of micropillar arrays is located between a respective pair of electrodes in the microchannel. The impedance analyzer can be coupled to each of the electrodes and configured to measure electrical impedance of at least some of the micropillar arrays at multiple times, in a wash-free assay, including at least one impedance measurement before the fluid sample is flowing through the microchannel and at least one impedance measurement after the fluid sample is flowing through the microchannel.

The application provides a microfluid sample detection method, first, opening a microfluid detection device and placing a microfluid detection device into a loading position, the microfluid detection device is signal connected with the microfluid detection device; second, an actuator keeps a first valve body open and a second valve body closed, a microfluid sample enters a microfluid channel through a fluid inlet, part of gas is discharged through a fluid outlet, until the front end of the microfluid sample contacts a first lock body and stops flowing; then, a main control board determines that sample adding is successful, the actuator closes the first valve body, opens the second valve body, and compresses a first pump body to drive the microfluid sample into a reaction area; finally, the front end of the microfluid sample contacts a reaction area terminal end, the actuator stops compressing the first pump body, waits for the countdown in a timer to end, the actuator resumes compressing the first pump body, drives the microfluid sample after reaction to continue flowing and far away from the reaction area into a liquid collection area, and a detection module detects a reaction result completion signal.

A method for analyzing a sample in a cuvette is disclosed. The invention relates to a method for analyzing a fluid sample (71) by means of radiation. The method comprises: providing a cuvette (1), the cuvette (1) comprising a cuvette body (10) having an inner space (14) for receiving a fluid sample (71), and an upper opening (11) for filling and removing the fluid sample (71), and a lower opening (12) for analyzing the fluid sample (71) by means of radiation. Further, the method comprises: introducing a fluid sample (71) into the interior space (14); irradiating the fluid sample (71) with primary radiation (81); and analyzing the fluid sample (71) by receiving the secondary radiation (82) originating from the fluid sample (71) by means of the detection device (8).

A method for producing a population of T cells that express a chimeric antigen receptor (CAR) comprising the steps of providing a fluid sample including a population of T cells; labeling the population of T cells with magnetic beads; extracting the population of T cells from the fluid sample by flowing the fluid sample through a first conduit that passes through a first magnetic separator device; transducing the population of T cells to express a chimeric antigen receptor (CAR) by contacting the population of T cells with a population of lentivirus in a solution contained in an incubation container; and harvesting the population of T cells by flowing the solution through a second conduit that passes through a second magnetic separator device, wherein the first conduit, the incubation container, and the second conduit are fluidically connected by a network of fluidic lines.

The invention relates to a gas chromatograph apparatus, system and method with a modular architecture. An apparatus includes a fluid inlet port configured to receive a fluid including a fluid sample, and to provide the fluid to an inlet of a manifold plate. The manifold plate includes an inlet channel configured to deliver a fluid sample from the fluid inlet port to the analysis module and an exhaust channel configured to receive the fluid sample from the analysis module and deliver the fluid sample from the manifold plate to the fluid inlet port. The analysis module is secured to the manifold plate and includes a gas chromatograph oven configured to obtain a fluid sample from the inlet channel and to discharge the fluid sample using the discharge channel after measuring a property of the fluid sample, and a sensor configured to detect the property of the fluid sample. The sensor is configured to measure a property of the fluid sample in the gas chromatograph oven after receiving the fluid sample from the manifold plate.

A global fluid identity repository is used to maintain and manage fluid characterization data for various fluids utilized in the oil & gas industry, e.g., reservoir fluids within subsurface formations. Tracking and notification services may be utilized to track changes made to a global fluid identity, e.g., changes in fluid sample and / or experiment data for a fluid, and automatically generate notifications when downstream data such as fluid models and / or simulation results become stale as a result of these changes.

Systems, methods, and apparatuses for generating a fluid analysis report with key issues to improve vehicle maintenance are provided. A processing circuit is configured to: obtain information regarding a plurality of fluids from a plurality of vehicles; determine a plurality of thresholds based on the information; analyze a fluid sample from a particular vehicle to identify a fluid type of the fluid sample; identify a vehicle type of the particular vehicle associated with the fluid sample; retrieve a population of the obtained information pertinent to at least one of the identified fluid type of the fluid sample or the vehicle type of the particular vehicle; retrieve at least one threshold associated with the retrieved population; compare a characteristic of the fluid sample to the retrieved at least one threshold; and generate and provide a dynamic graphical user interface regarding the comparison to a computing device.

A system may include a light source, to generate a probe signal, comprising incident radiation; an optical probe, to direct the incident radiation through a fluid sample; a motor, to move the optical probe along a probe axis, to change a path length of the incident radiation through the fluid sample; and a detector, to receive the incident radiation as attenuated radiation after passing through the fluid sample. The system may include a control system, arranged to: initiate an absorbance measurement by directing movement of the optical probe along the probe axis; direct the light source to emit the incident radiation; and automatically adjust at least one measurement parameter of a set of measurement parameters for the sample measurement, based upon a slope parameter m, wherein m is derived from a rate of change in an intensity of the attenuated radiation with a change in the path length.