Abstract: The present invention is directed to a cryogenic cooler that may include a cold finger coupled to a cooling source, an insulating vessel having an inner wall, an outer wall and an interior area formed within the inner wall, where the cold finger may be positioned at least partially within the interior area. The cryogenic cooler may also have a fitting positioned on the outer wall and configured for coupling to a gas source, and a passageway formed between the coupling and the inner wall and configured to allow the transfer of a gas from the gas source to the interior area. The cryogenic cooler may also have an opening is formed in the interior area so as to allow the transfer of the gas around the cold finger and out of the interior area.

Abstract: The present invention is directed to a vitrification stick for use in the cryopreservation of biological materials, and may include a body having a first portion and a second portion, and a specimen end extending from the second portion of the body, and having a basket end tip formed thereon. The basket end tip may include a peripheral wall enclosing an interior region of the basket end tip, and the interior region may be further enclosed on a first side by a shell connected to the peripheral wall, and the interior region may be open on a second side in a direction towards the specimen end. The shell may include at least one slot formed therein.

Abstract: The present invention is directed to providing a cryogenic storage device and system that can be regulated at a constant temperature for cryopreservation of biological materials. A cryogenic storage system for cryopreservation of biological materials is provided that may include a storage beaker having at least one storage chamber formed therein, a cooling source, and a cold finger that may be configured to thermally couple the storage beaker to the cooling source.

Abstract: The present invention is directed to a vitrification stick for use in the cryopreservation of biological materials, and may include a body having a first portion and a second portion, and a specimen end extending from the second portion of the body, and having a basket end tip formed thereon. The basket end tip may include a peripheral wall enclosing an interior region of the basket end tip, and the interior region may be further enclosed on a first side by a shell connected to the peripheral wall, and the interior region may be open on a second side in a direction towards the specimen end. The shell may include at least one slot formed therein.

Abstract: The present invention is directed to a vitrification stick for use in the cryopreservation of biological materials, and may include a body having a first portion and a second portion, a specimen end extending from the second portion of the body, and having a cavity defined therein, and a cap including an open end, a closed end, and an aperture, the cap being dimensioned so as to receive at least the specimen end. The cap is positionable relative to the second portion of the body between an open stage and a closed stage, and in the open stage the cavity of the specimen end is exposed by the aperture to an area exterior to the cap.

Abstract: The present invention is directed to providing a cryogenic storage device and system that can be regulated at a constant temperature for cryopreservation of biological materials. A cryogenic storage system for cryopreservation of biological materials is provided that may include a storage beaker having at least one storage chamber formed therein, a cooling source, and a cold finger that may be configured to thermally couple the storage beaker to the cooling source.

Abstract: The present invention is directed to providing a cryogenic storage device and system that can be regulated at a constant temperature for cryopreservation of biological materials. A cryogenic storage system for cryopreservation of biological materials is provided that may include a storage beaker having at least one storage chamber formed therein, a cooling source, and a cold finger that may be configured to thermally couple the storage beaker to the cooling source.

Abstract: The present invention provides a continuous flowthrough labyrinth device that has a detector well formed therein in which a radiation detection device may be placed. The continuous flowthough labyrinth device allows a fluid sample to be introduced into the flow path of the device so that the fluid sample evenly surrounds the top and side surfaces of the detector well, which results in the fluid sample being evenly distributed around the radiation detection device. The continuous flowthrough labyrinth device may be connected to any radiation level fluid monitoring system, for example systems used by municipalities and/or industries. The continuous flowthrough labyrinth device may be placed such that fluids entering and/or exiting systems are monitored for radiation, or even placed to determine the radiation levels of fluids within systems.

Abstract: Exemplary embodiments of the present invention are directed to a rotating drum collimator for collimating an energy beam to produce a scanning beam that includes a drum having a substantially cylindrical sidewall with a first helical groove and a second helical groove formed in the cylindrical side wall, and a motor operatively connected to the drum, and configured to cause rotation of the drum about a longitudinal axis of the drum. Each of the first helical groove and the second helical groove comprises a first end portion, a middle portion and a second end portion, and a width of the first end portion and the second end portion of each of the first helical groove and the second helical groove is greater than the middle portion of each of the first helical groove and the second helical groove.

Abstract: The present invention provides a continuous flowthrough labyrinth device that has a detector well formed therein in which a radiation detection device may be placed. The continuous flowthough labyrinth device allows a fluid sample to be introduced into the flow path of the device so that the fluid sample evenly surrounds the top and side surfaces of the detector well, which results in the fluid sample being evenly distributed around the radiation detection device. The continuous flowthrough labyrinth device may be connected to any radiation level fluid monitoring system, for example systems used by municipalities and/or industries. The continuous flowthrough labyrinth device may be placed such that fluids entering and/or exiting systems are monitored for radiation, or even placed to determine the radiation levels of fluids within systems.