Abstract: The present invention discloses an afterload device for ex situ heart perfusion, which includes an afterload energy storage module, a pressure regulation module and two flow rate regulators that are connected through a conduit. The afterload energy storage module includes a rigid closed container and a flexible container. The perfusion fluid flows into the flexible container from one side thereof through the conduit, and the perfusion fluid flows out from the flexible container at another side thereof as the flexible container is subjected to the action of the medium pressure in the rigid hermetic container. The pressure regulation module includes two pressure regulation valves and a compressible-medium source, for regulating the pressure range within the rigid hermetic container to be always maintained between the set diastolic pressure and the set systolic pressure.

Abstract: Described are methods of performing perfusion on a heart having a left atrium, a right atrium, a pulmonary artery. The methods are performed on a device configured for selectively performing perfusion in at least a Langendorff mode and a right-sided working mode. The methods include performing profusion on a heart in a right-side working mode of the device in which an aortic line is open, a left atrial line is closed, and a reservoir return line is closed.

Abstract: An ultrasonic cleaning system comprises a cleaning tank containing a cleaning liquid, a moving and holding device configured to move a carrier into the cleaning tank and hold the carrier in the cleaning tank, and an ultrasonic wave generator mounted in the cleaning tank. A plurality of fiber optic ferrules are mounted on the carrier and are immersed in the cleaning liquid when the moving and holding device holds the carrier in the cleaning tank. The ultrasonic wave generator is adapted to emit an ultrasonic wave into the cleaning liquid to clean the fiber optical ferrules immersed in the cleaning liquid.

Abstract: The present invention discloses an afterload device for ex situ heart perfusion, which includes an afterload energy storage module, a pressure regulation module and two flow rate regulators that are connected through a conduit. The afterload energy storage module includes a rigid closed container and a flexible container. The perfusion fluid flows into the flexible container from one side thereof through the conduit, and the perfusion fluid flows out from the flexible container at another side thereof as the flexible container is subjected to the action of the medium pressure in the rigid hermetic container. The pressure regulation module includes two pressure regulation valves and a compressible-medium source, for regulating the pressure range within the rigid hermetic container to be always maintained between the set diastolic pressure and the set systolic pressure.

Abstract: An integrated equipment for processing a plurality of fiber optic ferrules comprises a polishing system, a ferrule cleaning system, a drying system, a wiping system, and a robot system. The polishing system polishes a plurality of front end faces of the plurality of fiber optic ferrules mounted on a carrier. The ferrule cleaning system cleans the carrier and the fiber optic ferrules on the carrier after the fiber optic ferrules have been polished. The drying system dries the carrier and the fiber optic ferrules on the carrier after the carrier and the fiber optic ferrules have been cleaned. The wiping system wipes the front end faces of the fiber optic ferrules on the carrier after the carrier and the fiber optic ferrules have been dried. The robot system transfers the carrier to the polishing system, the ferrule cleaning system, the drying system, and the wiping system.

Abstract: A cleaning system comprises a first cleaning tank, a carrying and moving unit, a first cleaning spray head, and a rolling brush unit. The carrying and moving unit is configured to move a polishing film to be cleaned into the first cleaning tank and hold the polishing film in the first cleaning tank. The first cleaning spray head is configured to spray a cleaning liquid on the polishing film held in the first cleaning tank. The rolling brush unit is configured to brush the polishing film while the first cleaning spray head sprays the cleaning liquid on the polishing film.

Abstract: A drying system comprises a drying box, a carrier moving and holding device, and a high pressure jet device mounted in the drying box. The carrier moving and holding device is configured to move a carrier into the drying box and hold the carrier in the drying box. A plurality of fiber optic ferrules are mounted on the carrier. The high pressure jet device is adapted to spray a high pressure gas on the carrier held in the drying box to dry the fiber optic ferrules.

Abstract: A cutting system is disclosed. The cutting system comprises a moving mechanism, a cutter mounted on the moving mechanism, a support table having a material plate disposed thereon, and a fixation device including a pressing plate having a row of teeth defining a row of teeth slots. The row of teeth press the material plate on the support table while the moving mechanism drives the cutter to move along edges of the row of teeth slots. The cutter cuts a plurality of workpieces out of the material plate by a single cutting process.

Abstract: Systems and methods for performing perfusion and contractility assessments for a heart are provided. The system can operate in any of Langendorff mode, pump-supported working mode, passive working mode, and right-sided working mode. The system includes a reservoir from which one or more pumps are operable to supply a heart with fluids and collect fluids output therefrom. One or more clamps can be used to switch between Langendorff, pump-supported, passive, and right-sided working modes.

Abstract: A 3D printing system is disclosed. The 3D printing system has a print head and a positioning platform. The positioning platform supports and positions a product printed by the print head. The positioning platform is movable with respect to the print head in a first direction, a second direction, and a third direction perpendicular to each other. The positioning platform is also rotatable with respect to the print head about at least two of the first, second, and third directions.

Abstract: A wiping system comprises a support table, a conveying unit configured to convey a wiping belt onto the support table, a carrier holding device configured to hold a carrier on which a plurality of fiber optic ferrules are mounted, a carrier pressing device configured to press the carrier on the support table with a plurality of front end faces of the fiber optic ferrules in direct contact with the wiping belt, and a first base on which the support table is mounted. The carrier holding device and the carrier pressing device are slidably mounted on the first base. The carrier pressed on the support table is movable back and forth relative to the support table in a first horizontal direction while the front end faces of the fiber optic ferrules remain in direct contact with the wiping belt.

Abstract: A drying system comprises a drying box, a carrier moving and holding device, and a high pressure jet device mounted in the drying box. The carrier moving and holding device is configured to move a carrier into the drying box and hold the carrier in the drying box. A plurality of fiber optic ferrules are mounted on the carrier. The high pressure jet device is adapted to spray a high pressure gas on the carrier held in the drying box to dry the fiber optic ferrules.

Abstract: An ultrasonic cleaning system comprises a cleaning tank containing a cleaning liquid, a moving and holding device configured to move a carrier into the cleaning tank and hold the carrier in the cleaning tank, and an ultrasonic wave generator mounted in the cleaning tank. A plurality of fiber optic ferrules are mounted on the carrier and are immersed in the cleaning liquid when the moving and holding device holds the carrier in the cleaning tank. The ultrasonic wave generator is adapted to emit an ultrasonic wave into the cleaning liquid to clean the fiber optical ferrules immersed in the cleaning liquid.

Abstract: A cleaning system comprises a first cleaning tank, a carrying and moving unit, a first cleaning spray head, and a rolling brush unit. The carrying and moving unit is configured to move a polishing film to be cleaned into the first cleaning tank and hold the polishing film in the first cleaning tank. The first cleaning spray head is configured to spray a cleaning liquid on the polishing film held in the first cleaning tank. The rolling brush unit is configured to brush the polishing film while the first cleaning spray head sprays the cleaning liquid on the polishing film.

Abstract: A wiping system comprises a support table, a conveying unit configured to convey a wiping belt onto the support table, a carrier holding device configured to hold a carrier on which a plurality of fiber optic ferrules are mounted, a carrier pressing device configured to press the carrier on the support table with a plurality of front end faces of the fiber optic ferrules in direct contact with the wiping belt, and a first base on which the support table is mounted. The carrier holding device and the carrier pressing device are slidably mounted on the first base. The carrier pressed on the support table is movable back and forth relative to the support table in a first horizontal direction while the front end faces of the fiber optic ferrules remain in direct contact with the wiping belt.

Abstract: An integrated equipment for processing a plurality of fiber optic ferrules comprises a polishing system, a ferrule cleaning system, a drying system, a wiping system, and a robot system. The polishing system polishes a plurality of front end faces of the plurality of fiber optic ferrules mounted on a carrier. The ferrule cleaning system cleans the carrier and the fiber optic ferrules on the carrier after the fiber optic ferrules have been polished. The drying system dries the carrier and the fiber optic ferrules on the carrier after the carrier and the fiber optic ferrules have been cleaned. The wiping system wipes the front end faces of the fiber optic ferrules on the carrier after the carrier and the fiber optic ferrules have been dried. The robot system transfers the carrier to the polishing system, the ferrule cleaning system, the drying system, and the wiping system.

Abstract: An air quality indicator for indicating high fine particle levels in an environment of interest. The indicator includes a frame maintaining first and second air filter media. The first air filter medium differs from the second air filter medium at least in terms of a change in visual appearance (e.g., color) when subjected to air flow containing fine particles.

Abstract: A cutting system is disclosed. The cutting system comprises a moving mechanism, a cutter mounted on the moving mechanism, a support table having a material plate disposed thereon, and a fixation device including a pressing plate having a row of teeth defining a row of teeth slots. The row of teeth press the material plate on the support table while the moving mechanism drives the cutter to move along edges of the row of teeth slots. The cutter cuts a plurality of workpieces out of the material plate by a single cutting process.

Abstract: A 3D printing system is disclosed. The 3D printing system has a print head and a positioning platform. The positioning platform supports and positions a product printed by the print head. The positioning platform is movable with respect to the print head in a first direction, a second direction, and a third direction perpendicular to each other. The positioning platform is also rotatable with respect to the print head about at least two of the first, second, and third directions.

Abstract: A polishing apparatus is disclosed. The polishing apparatus has a base, a carrier, an elevating mechanism, a pressing mechanism, and a polishing mechanism. The carrier has a plurality of work pieces disposed thereon. The elevating mechanism is mounted on the base and has a pair of positioning plates. The carrier is disposed on the pair of positioning plates. The pressing mechanism is mounted on the base and has a pair of pressing heads each including an arc-shaped protrusion respectively pressing each of a pair of opposite ends of the carrier against the pair of positioning plates. The polishing mechanism is mounted on the base and polishes the plurality of work pieces.