37 results about "Laboratory technique" patented technology

Described herein are nanoparticles that are coated with a bilayer of molecules formed from surface binding molecules and amphiphatic molecules. The bilayer coating self assembles on the nanoparticles from readily available materials / molecules. The modular design of the bilayer coated nanoparticles provides a means for readily and efficiently optimizing the properties of the bilayer coated nanoparticle compositions. Also described herein are uses of such nanoparticles in medicine, laboratory techniques, industrial and commerical applications.

Methods, apparatuses and systems for tooth shade analysis and matching are disclosed. A method embodiment according to the invention includes acquiring at least one image, the image including one or more teeth of a patient and normalization references, normalizing the at least one image in accordance with the normalization references, determining the color of the teeth as composed of colors from one or more selected shade standards, communicating the standardized color information to a dental laboratory, manufacturing a dental prosthesis based on the standardized color information and installing the dental prosthetic. Normalization is performed to correct patient images for variations in lighting conditions and image source. Normalization references include a black reference, a white reference and at least one color reference. The normalized image is standardized by matching the pixels of the normalized image to selected shade standards. Selected shade standards may include incisal tooth shade standards. The standardized color image and / or analysis may be communicated to a dental laboratory according to aspects of the invention. The dental prosthesis can then be manufactured by a lab technician by referring to the standardized image. Color models according to the invention may include RGB, HSI and other models for representing color images. The methods, apparatuses and systems for tooth shade analysis and matching are also applicable to direct restorations of natural teeth, such as repair of chipped or broken teeth.

A process for preparing acetylene by using hot plasma to crack the gas containing methane includes such steps as using plasma generator to ionize the argon or N2 or H2 to form a plasma jet, spraying raw gas via a gas inlet ring in reactor, mixing the plasma jet with the raw gas in the reactor, cracking reacting, and quickly cooling the cracked gas in an expansion cavity of cooler to obtain acetylene, carbon black and H2.

This invention concerns a method, devices, instrument and program for extraction an ingredient from a liquid sample by bidirectional transfer of an aliquot of fluid between compartments, the method can be applied to a wide variety of laboratory techniques such as; solid phase extraction by filter disc, column chromatography, magnetic separation, diagnostic tests and others, the system is suitable for single or multi sample handling, manual operation or integrated into an automated system, can be used in a lab or in field.

Described herein are nanoparticles that are coated with a bilayer of molecules formed from surface binding molecules and amphiphatic molecules. The bilayer coating self assembles on the nanoparticles from readily available materials / molecules. The modular design of the bilayer coated nanoparticles provides a means for readily and efficiently optimizing the properties of the bilayer coated nanoparticle compositions. Also described herein are uses of such nanoparticles in medicine, laboratory techniques, industrial and commercial applications.

The present invention relates generally to the field of CT and X-ray scanning units. More specifically, the invention relates to scanning unit with the capability to scan impressions and patients at the same location. Even more specifically, the invention involves a method of using data and images received from the same scanning unit to fabricate a surgical stint or guide device that snap fits onto a preparation site, and further allows a dental practitioner or a lab to prepare permanent prosthetics using the data and images from the same scanning unit. Even more specifically, the invention relates to a method of allowing the clinician to place high-fidelity teeth back into the correct location within the jaw taus and create models and treatment plans using hi-fidelity 3D images. Additionally, the invention relates to attaching an imaging capturing device (such as a digital camera) that allows the transmission of digital images or data from the capturing device to reconstructing software that reconstructs the 3D volume of the head topography to superimpose over the CT scan of head. The reconstructing software may reconstruct data from the captured digital images or data, from the data received from scanning patients and from scanning impressions. Thus, in an industry that previously required three different machines to scan impressions, the interior of the head and the topography of the head. SLD printers can print out a wax model utilizing crowns and bridges that is accurate and ultimately replaces lab technicians.

In a pulse oximeter of the invention, an arterial blood oxygen saturation at least at a walking end point of time is stored in a storage, in response to a detection result from a detector for detecting whether a subject is walking. With use of the pulse oximeter, a measurement result on arterial blood oxygen saturation in association with walking can be automatically obtained, without the accompaniment of a laboratory technician or a like support.

Apparatus for testing a conducted energy weapon includes analyzer means to produce characteristic signals representative of characteristics of electrical current pulses delivered by the weapon into a resistive load when the weapon is discharged. Risk estimation means responsive to the characteristic signals produces a risk estimate representative of a risk of injury to a targeted subject due to electrical stimulation, or alternatively representative of a risk of failure to incapacitate the targeted subject. Indicator means responsive to the risk estimate indicates the risk of injury, or alternatively the risk of failure to incapacitate, and warns the user of the apparatus when the risk exceeds a predetermined threshold. Advantageously, automatic testing and risk analysis provided by the apparatus allows weapon tests to be easily and routinely conducted by persons having no knowledge of electrical principles, laboratory techniques, or risk analysis methodologies, such persons including peace officers or other individuals who may be associated with a law enforcement agency.

The present invention relates to a system for automatically detecting the presence of a cage or tray for containing laboratory animals in a specific position of a facility shelf and to a method for managing the data relating to the cage, implemented by means of said system, particularly advantageous for the laboratory technician. In particular, the present invention relates to a system (1) composed of a shelf (20) comprising a plurality of devices (23) designed to detect the position in the facility and the ID of a cage (30), a central control unit (73) designed to process, through software, the information received in order to offer the operator the possibility of tracking and managing, by means of a database, the whole facility. Numerous other functions of the system are included in the present invention, such as the function designed to detect and notify, visually or through the software, the correct positioning of a cage in the shelf.

Solid beads each containing a selected quantity of analyte are combined and a liquid base matrix that contains attributes of a biological fluid that is to be assayed, together constitute a kit from which a laboratory technician can, at the point of use, prepare a liquid control for a particular analyte, and preferably a series of such controls at different levels of the same analyte customized for a particular assay.

The invention belongs to the field of clinical laboratory techniques and in particular relates to a colloidal gold test strip for quantitatively detecting human bone metabolic biomarker and a detection device applying same. The test strip provided by the invention comprises a sample pad, a glass fiber mat coated with gold-labeled streptavidin, a glass fiber mat coated with a gold-labeled antibody, a nitrocellulose membrane and an absorbent pad which are sequentially adhered with one another on a bottom plate in a staggered manner. A quality control line pre-enveloped with a goat anti-rat IgG antibody is formed in the nitrocellulose membrane; a detection line parallel to the quality control line is formed in the nitrocellulose membrane; an antibody capable of being specifically bound with a to-be-detected antigen human bone metabolic biomarker is coated on the detection line; the gold-labeled antibody is an antibody capable of being specifically bound with the to-be-detected antigen human bone metabolic biomarker. According to the test strip provided by the invention, the human bone metabolic biomarker can be quantitatively detected, the requirement on instruments is low, the time of clinically detecting the human bone metabolic biomarker is shortened, and the detection complexity and cost can be reduced.

The invention discloses a method for managing a modern biological laboratory. The method is provided aiming at the standardized management blankness of the prior biological laboratory. The method mainly comprises the following steps of: 1) laboratory medicines and accounting, 2) primer order and accounting management, 3) sequencing registration and accounting management, 4) laboratory equipment and apparatus management, 5) laboratory technology platform and management, 6) laboratory carrier resource management, 7) laboratory species resource management, 8) laboratory member information management, 9) laboratory common website linking management and 10) laboratory common contact method management. The management method is specific and concrete, simple in operation and convenient to use and embodies scientificity, advancement and practicability.

Exosomes carry microRNA biomarkers, occur in higher abundance in cancerous patients than in healthy ones, and because they are present in most biofluids, including blood and urine, can be obtained non-invasively. Standard laboratory techniques to isolate exosomes are expensive, time-consuming, provide poor purity, and recover on the order of 25% of the available exosomes. We present a new microfluidic technique to simultaneously isolate exosomes and preconcentrate them by electrophoresis using a high transverse local electric field generated by ion-depleting ion-selective membrane. We use pressure-driven flow to deliver an exosome sample to a microfluidic chip such that the transverse electric field forces them out of the cross flow and into an agarose gel which filters out unwanted cellular debris while the ion-selective membrane concentrates the exosomes through an enrichment effect. We efficiently isolated exosomes from 1×PBS buffer, cell culture media and blood serum. Using flow rates from 150 μL / hr to 200 μL / hr and field strengths of 100 V / cm, we consistently captured between 60% to 80% of exosomes from buffer, cell culture media, and blood serum as confirmed by both fluorescence spectroscopy and nanoparticle tracking analysis. Our microfluidic chip maintained this recovery rate for more than twenty minutes with a concentration factor of 15 for ten minutes of isolation.

In the event of a suspected abnormality in the device, sample or reagent, a laboratory technician had to examine the abnormal reaction process data item by item, and infer the cause of the abnormality, which took effort and time in some cases. Abnormality judgment is assisted using: indicator computation means that computes an indicator indicating a feature parameter of a given waveform by applying a pre-defined evaluation formula to time series data of photometric values; relative indicator computation means that computes a value indicating a relationship of the indicator of target data to the indicator computed in the past; and indicator display means that simultaneously displays a value computed by the indicator computation means and the value computed by the relative indicator computation means. According to the present method, which is a method for assisting judgment of abnormality wherein a feature parameter of a given absorbance change is computed, it can be made easier to find certain abnormalities, and it becomes possible to attain more efficient device maintenance and improved device reliability without the addition of any new parts.

The invention relates generally to standard sets of proteins, polypeptides, or peptides, and methods of using the standard sets to standardize laboratories, laboratory procedures, or laboratory equipment, and to certify laboratories and laboratory technicians. In certain aspects, the invention relates to standard sets of proteins, polypeptides, or peptides, that may be used in mass spectrometry.

The present disclosure relates to methods for generating blood protein profiles in red blood cell-enriched blood samples. The disclosed methods represent a new and improved laboratory technique for producing a protein profile from blood, increasing protein detection.

When automatically classified results are different from judgment of a laboratory technician, the laboratory technician has to reselect the bacterial colonies one-by-one to be a pickup colony through watching the displayed image. To get rid of the inconvenience, provided is a pretreatment device for a bacteria test comprising: a specification unit by which an operator instructs to specify the number of bacterial colonies and the increased / decreased number of the bacterial colonies to be displayed; and a display unit for displaying classification results obtained following the operator's instruction. The pretreatment device for a bacteria test facilitates the automatically classified results to be brought close to the judgment of the laboratory technician, resulting in the saving of the time required for checking the appropriate bacterial colonies for the pickup colony.

The invention belongs to the technical field of intelligent laboratories, and particularly relates to a distributed cell intelligent laboratory management system. The distributed cell intelligent laboratory management system comprises a processing device, wherein the processing device comprises an inventory transfer module, a type judgment module, a first transfer warehousing module, a quality inspection judgment module and a qualification judgment module. The invention provides a novel distributed cell intelligent laboratory management system. The distributed cell intelligent laboratory management system can quickly and accurately perform cell inventory transfer according to multi-condition judgment, and the occurrence of the inventory transfer is not completed in a certain specific module, but is dynamically interspersed in each link where the inventory transfer operation may occur.

This invention concerns a method, devices, instrument and program for extraction an ingredient from a liquid sample by bidirectional transfer of an aliquot of fluid between compartments, the method can be applied to a wide variety of laboratory techniques such as; solid phase extraction by filter disc, column chromatography, magnetic separation, diagnostic tests and others, the system is suitable for single or multi sample handling, manual operation or integrated into an automated system, can be used in a lab or in field.

A process for preparing acetylene by using hot plasma to crack the gas containing methane includes such steps as using plasma generator to ionize the argon or N2 or H2 to form a plasma jet, spraying raw gas via a gas inlet ring in reactor, mixing the plasma jet with the raw gas in the reactor, cracking reacting, and quickly cooling the cracked gas in an expansion cavity of cooler to obtain acetylene, carbon black and H2.

The invention belongs to the technical field of digital art design laboratories, and discloses a digital art design laboratory which is provided with an art design module. The art design module comprises a script planning module which is used for the detailed representation of the subject, motion design of shots and time control of each shot; and a model establishing module which is used for establishing a three-dimensional object model. Rank matching and ordering are performed on the amplitude random sequence generated by the reject method by using the root sequence of the autocorrelation Rayleigh square sum generated by the sinusoidal superposition method, rank matching and ordering are performed on the phase random sequence by using the autocorrelation Rayleigh sequence generated by thesinusoidal superposition method, and the ordered autocorrelation amplitude random sequence and the autocorrelation phase random sequence are superposed to generate a time domain autocorrelation Nakagami-m fading compound channel random sequence; and the three-dimensional object model is generated. The image data rendering speed can be greatly enhanced through the cloud sever module so that the design period can be shortened and the design efficiency can be enhanced.

Solid beads each containing a selected quantity of analyte are combined and a liquid base matrix that contains attributes of a biological fluid that is to be assayed, together constitute a kit from which a laboratory technician can, at the point of use, prepare a liquid control for a particular analyte, and preferably a series of such controls at different levels of the same analyte customized for a particular assay.

In the event of a suspected abnormality in the device, sample or reagent, a laboratory technician had to examine the abnormal reaction process data item by item, and infer the cause of the abnormality, which took effort and time in some cases. Abnormality judgment is assisted using: indicator computation means that computes an indicator indicating a feature parameter of a given waveform by applying a pre-defined evaluation formula to time series data of photometric values; relative indicator computation means that computes a value indicating a relationship of the indicator of target data to the indicator computed in the past; and indicator display means that simultaneously displays a value computed by the indicator computation means and the value computed by the relative indicator computation means. According to the present method, which is a method for assisting judgment of abnormality wherein a feature parameter of a given absorbance change is computed, it can be made easier to find certain abnormalities, and it becomes possible to attain more efficient device maintenance and improved device reliability without the addition of any new parts.

A system which allows a user to transmit image data to a print laboratory technician and receive photo prints at a shop suffers cumbersome personal identification when the print laboratory technician reliably hands photo prints. To solve this problem, an electronic camera transmits image sensing data, and designation information which designates a print service which should print the image sensing data. An image gateway transmits the received image sensing data and a printing instruction for the image sensing data to the print service designated by the received designation information. Upon confirming that the print service has received the image sensing data and printing instruction, the image gateway transmits, to the electronic camera, receipt information which corresponds to the printing instruction and is used to receive a print.

The invention relates to a method and system for identifying faults of an electric information collecting system energy meter. The device includes a device for identifying the fault of a single-phase energy meter and a device for identifying the fault of a three-phase energy meter, the device for identifying the fault of the single-phase energy meter includes a master control module, a missort detection unit, and a wiring clamp, and the device for identifying the fault of the three-phase energy meter includes a master control module and a wiring clamp. The device can detect the metering fault of an onsite energy meter, achieves the functions of missort detection, the section identification, wiring error detection, onsite environmental parameter acquisition, and energy meter parameter detection, and supports lab technicians in performing detailed fault analysis.

The invention belongs to the technical field of thermal environment laboratories, and discloses a thermal environment laboratory for simulating wall radiation. The thermal environment laboratory comprises an outer chamber and an inner chamber, wherein the outer chamber is made of a thermal insulation material and comprises an outer top plate, an outer floor and a circumferential outer side wall; the inner chamber is a closed space and placed in the outer chamber, the inner chamber is made of a thermal insulation material, the inner chamber includes an inner top plate, an inner floor, a circumferential inner side wall and a ceiling, the inner top plate is arranged at the top end of the circumferential inner side wall and spaced from the outer top plate by a first interval, an air inlet is formed in the inner top plate, the inner floor is arranged at the bottom end of the circumferential inner side wall and spaced from the outer floor by a second interval, an air outlet is formed in thebottom of the inner chamber, the ceiling is embedded below the inner top plate, and ventilation openings are formed in the circumferential edge. According to the invention, the temperature of the inner chamber wall can be controlled, so that the wall radiation heat exchange or room thermal environment of a room can be accurately simulated. The problem that an existing thermal environment laboratory cannot simulate wall radiation or cannot control the input thermal load is solved.

The invention provides a method and device for achieving archive management informatization, and is applied to archive management of laboratory technicians. The method for achieving the archive management informatization comprises the following steps of acquiring a user identifier of a current logged-in user; receiving the archive information when the current logging-in user is determined to be ananalysis researcher through the user identifier, wherein the archive information comprises personal information of the technical personnel, the technical information and the service information; generating the identity identifier of the technician according to the personal information, and correspondingly storing the identity identifier, the technical information and the service information in apreset storage position; and carrying out informatization management on the archives of the laboratory technicians. According to the invention, informatization management of laboratory technician files can be realized, and the management effect of archives is effectively improved.

The invention relates to the technical field of laboratories, and discloses an integrated mobile intelligent laboratory which comprises an integrated experiment box body, universal wheels are fixedlyconnected to the lower end of the integrated experiment box body, supporting columns are detachably connected to the lower end of the integrated experiment box body, and the intelligent laboratory isdivided into an ultraviolet sterilization region, an experiment region, an experiment analysis region, a reagent storage region and an air inlet and outlet region according to different functions. Wherein the ultraviolet sterilization region is used for allowing authorized personnel to enter for ultraviolet sterilization, the experiment region is used for experiment operation, and the experiment analysis region is used for allowing experimenters to analyze, organize, store, input and upload experiment data; according to the intelligent laboratory, laboratory reservation sharing, safe admissionand experimental environment monitoring are integrated for management; functional regions of the laboratory are modularly integrated and do not interfere with one another, the user experience is improved, advanced sensing, cooperation and control technologies are fully utilized, real-time supply of experimental supplies is achieved, and intelligent management services are provided for resources,environments and safety of the laboratory.

The invention relates to the technical field of lifting type laboratories and discloses a convenient lifting type laboratory experiment table. The convenient lifting type laboratory experiment table comprises a table body, the middle of the inner cavity of the table body is connected with a separating plate, the middle of the inner cavity of the separating plate is fixedly connected with a first hydraulic rod, and the top of the first hydraulic rod penetrates through the top of the table body and is fixedly connected with a table top; the side surfaces of the table body are movably connected with sliders through first sliding rails, and the top of each slider is fixedly connected with the table top through a connecting rod; the side surfaces of the bottom of the table body are fixedly connected with table legs, the middle of the bottom of the table body is fixedly connected with a second hydraulic rod, the bottom of the second hydraulic rod is fixedly connected with a lifting plate, and the bottom of the lifting plate is movably connected with wheels. According to the convenient lifting type laboratory experiment table, the first hydraulic rod drives the table top to move up and down to conveniently adjust the height of the table top; the sliders and the first sliding rails conveniently limit the table top to stably lift up and down the table top vertically. The convenient lifting type laboratory experiment table has the advantage of being capable of conveniently adjusting the height.

The invention discloses a waste gas treatment device for a lifting type laboratory and relates to the technical field of lifting type laboratories. The waste gas treatment device for the lifting typelaboratory comprises a machine body, wherein two fixing rings are fixedly connected with the inner left wall of the machine body; a first exhaust machine is sleeved by the two fixing rings; the gas inlets of the first exhaust machine are communicated with one end of a gas inlet tube; a cavity is formed in the top of the inner wall of the machine body; the cavity is communicated with the end far away from the first exhaust machine, of the gas inlet tube; a gas collection hole is formed in one side of the top of the cavity. Due to cooperative arrangement of the first exhaust machine, the gas inlet tube, the cavity and the gas collection hole inside the machine body, experimental waste gases inside a laboratory can be effectively sucked into a water tank through a gas guide tube; due to adoption of a gas collection tube on one side of the water tank and cooperative arrangement of a second exhaust machine and a filtering net, non-water soluble waste gases can be treated effectively.