Abstract:
Exemplified methods and systems facilitate presentation of data derived from measurements of endotoxins in fluid samples. In particular, the exemplified methods and systems facilitate presentation of such measurements in a graphical user interface and/or in a report for endotoxin concentrations in a fluid sample. The presentation facilitates a unified and intuitive graphic visualization that are presented within a single interactive interface and/or report.
Abstract:
An apparatus for the determination of analytes in liquid samples is disclosed. The apparatus comprises in fluid connection a positive-displacement pump, a chamber in which the reagents specific for the analytes to be determined can be delivered, a detector, a second chamber and a device for the introduction of sample within the circuit and for the discharge. The apparatus also provides for apparatus to control flow and to control of the operation of each component. A process for the determination of the analytes is also disclosed.
Abstract:
A concentration measuring apparatus is provided having a fluid sensing means, an optic transmission means, a signal processing means, and an interface means. The fluid sensing means comprises a reflective sensing media in a self-contained cassette. The cassette is operationally associated with a sample chamber. The cassette advances the reflective sensing media by a motor which is driven by the signal processing means. The optic means comprises a fiber optic line which is partially associated with a lamp and partially associated with a photocell. Light having a wave length in a specified range originates from the lamp, passes through a portion of the fiber optic cable and is cast upon the reflective sensing media. The altnerate portion of the fiber optic cable receives the reflected light from the reflective sensing media for transfer to the photocell. A signal is generated by the photocell representative of the change of reflectivity of the light from the reflective sensing media. The signal from the photocell is accepted by the signal processing means. The signal processing means contains an amplifier, an analog to digital converter, a computer and associated controls. The interface means is associated with the signal processing means. The interface means comprises a display, a 4-to-20 milliamp card and remote, explosion-proof switches for operator interaction with the concentration measuring apparatus. Also, the interface means is the link to an outside printer, an outside analog recorder as well as an outside host computer.
Abstract:
An electropneumatic apparatus for sampling rapidly predetermined volumes of a mixture, to be connected to a computer (3) is characterized in that it comprises an injector (2) provided with a detector (6) connected to the computer (3) for indicating activation of the injector (2); a reactor (4) having a chamber (10) provided with at least one aperture, the chamber (10) being provided in its superior portion with an air inlet/outlet (14) connected to a pressurized air system, and having a bottom outlet (12) provided with a flow sensor (15) connected to the computer (3) for indicating a volume of fluid exiting from the bottom outlet (12); the pressurized air system having an air channel (42) provided with a first portion connected to an air source, and a second portion (44) connected to the air inlet/outlet (14) of the chamber (10), the air channel (42) being provided with an air controlling device (52, 54) connected to the computer (3) for producing a succession of positive and negative pressures inside the chamber (10), whereby the predetermined volumes of the mixture can be sampled from the bottom outlet (12) under control of the computer (3); and a receiving system comprising a mobile manifold (70) array for receiving successive samples exiting from the bottom outlet (12) of the chamber (10).
Abstract:
The present invention relates to a method for evaluating coagulability of a blood specimen obtained from a subject to whom a substance having a coagulation factor VIII-substituting activity is administered. The present invention also relates to a reagent for blood coagulation analysis, a reagent kit for blood coagulation analysis, and an apparatus for blood coagulation analysis. Furthermore, the present invention relates to an apparatus and computer program for evaluating coagulability of a blood specimen.
Abstract:
A portable system and method for measuring the concentration of multiple chemical or biological substances where an onsite analysis of such substances is needed. The new and original handheld sensor system uses a disposable optical test element and a spectroscopic detector that measures the test element response to specific analytes through a change in light absorbance, luminescence, and other forms of light-based response. In this way, reflection light intensities indicative of the test element response can be used to measure the concentration of the target analytes. The sensor system is also capable of being interfaced to an information processing unit or computer so that analytical data can be manipulated or stored electronically.
Abstract:
A multi-layer blood culture sensor includes two matrices. The first matrix is a polymer that is permeable to carbon dioxide and water, but impermeable to protons. A pH sensitive absorbance based dye is encapsulated or isolated in the polymer. The second matrix is a polymer with a pH insensitive fluorescent dye encapsulated or isolated in the polymer. The matrices are spectrally coupled and are useful for the determination of microorganisms in a blood culture bottle.