Abstract:
An improved sample tube that includes a body portion having a longitudinal axis and a wall generally circumscribing the longitudinal axis. The body portion terminates in a distal tip having a dimple. The body portion includes at least one transparent portion (e.g., at the distal tip) that is adapted for transmitting light. The wail is configured for elastic deformation along at feast a portion of its length, including in a direction that is generally transverse to the longitudinal axis, so that it compressively and resiliently deforms and engages a wail defining an opening in a sample block of a PGR amplification instrument. The tube may be made by injection molding a polymeric material including a thermoplastic.
Abstract:
A thermocycling device (10) and method of operating in which at least one first temperature sensor (1060) monitors a first temperature condition within the sample holder (64) and is adapted to provide a first electrical signal corresponding with the first temperature condition. In addition, at least one second temperature sensor (87) monitors a second temperature condition of a component external of the sample holder and is adapted to provide a second signal corresponding with the second temperature condition. At least one control device is adapted to interface with a power supply (1010) to control the delivery of power to a first thermal cycling element (60) and a second thermal cycling element (62), (both of which may sandwich a sample holder) and optionally an air mover (54); adapted to be in signaling communication with the first temperature sensor and the second temperature sensor; is configured for analysis of signals from the first temperature sensor and the second temperature sensor and; is configured such that, based upon such analysis, the at least one control device alters the power that is delivered to one or more of the first thermal cycling element and second thermal cycling element, and/or the air mover. The device Is controllably operated to account for thermal inertia effects.
Abstract:
A device for the collection and handling of biological or chemical specimens and a method for collecting and preparing the biological specimen from a patient selected from a population are disclosed. In particular, the device is particularly useful to collect a biological fluid specimen, such as sputum, to be used in downstream diagnostics tests. The device and method are particularly useful in reducing the handling and exposure of health-care workers to the sample by the use of a bag in which hermetic seals are utilized to separate sample aliquots while providing improved processing, testing and disposal thereof.
Abstract:
An improved device and system for facilitating polymerase chain reaction including a light source, detector, waveguide, and filters that occupy minimal space and facilitate detection of stationary samples, reduced sample read time, and simultaneous reading of multiple light wavelengths.
Abstract:
An improved tube (10) including a closure portion (12), a strap (18) integrally connected to the closure portion (12) and being configured for defining a living hinge, a body portion (20) having a longitudinal axis and an outer wall generally circumscribing the longitudinal ax is, and being integrally and hingedly connected with the closure portion (12) by way of the strap (18), the body portion (20) including a head portion (13) that has an opening (26) through which a sample is dispensed, and a sample portion (28) having a first outer wall dimension (OWD1) and including a closed distal end (30) and a wall structure (32) that includes an outer wall (34) and an inner wall structure (36) that defines a hollow cavity (38) within which the sample resides as a sample volume after is dispensed through the head portion (13), the sample portion (28) being generally elongated along the longitudinal axis and being configured for elastic deformation along a portion of its length, including in a direction that is generally transverse to the longitudinal axis so that at least a portion of the wall structure compressively and resiliently deforms and engages a wall defining an opening in a sample block of a polymerase chain reaction amplification device, and the first outer wail dimension (OWD1) of the sample portion (28) reduces to a smaller second outer wall dimension (OWD2).
Abstract:
The present invention provides a method and device for collecting treating and analysis of biological or chemical material by introducing a source material into a specimen container, transferring the source material to a processing device and thermally, chemically and/or mechanically treating the source material to alter at least one constitutive characteristic of the source material and to release or create a target material from the source material.
Abstract:
A device and system for facilitating polymerase chain reaction analysis including a light source (46), photodiodes (44), multi- branched waveguides (32), and filters (40) that occupy minimal space and allow reduced sample read time and rapid reading of multiple light wavelengths.
Abstract:
The present invention provides a method and device for treating and analyzing a biological specimen. The biological specimen is introduced into a processing device and treated thermally, mechanically, chemically or any combination thereof within the processing device to alter at least one constitutive characteristic of the biological specimen and to release or create one or more biological indicators from the biological specimen. The biological specimen is further contacted with a treated polymeric material so that at least a portion of the polymeric material binds to the one or more biological indicators.
Abstract:
An improved device and system for facilitating polymerase chain reaction including a light source, detector, waveguide, and filters that occupy minimal space and facilitate detection of stationary samples, reduced sample read time, and simultaneous reading of multiple light wavelengths.