摘要:
An apparatus and a method for collecting fluid fractions. The present apparatus includes an inlet, a channel, a plurality of collectors, and an outlet. The inlet communicates with the collectors and the outlet through the channel. The collectors are disposed between the inlet and the outlet. The method for collecting the fluid fractions comprises two steps. First step, injecting the fluid in to the inlet for guiding the fluid to the outlet along the channel, wherein the fluid fills the collectors one by one due to the capillary attraction when passing through the collectors, and flows to the outlet after the collectors having been filled. Second step, injecting pressurized gas into the channel to drain the fluid fractions from fill the collectors respectively to a plurality of corresponding containers.
摘要:
This specification disclosed a partially closed microfluidic system and a fluid driving method. The microfluidic system is comprised of a substrate with microfluidic elements and a thin film. A feature of this structure is that the thin film is elastic and deformable. It has a single opening corresponding to a vent hole on the substrate, thus forming a partially closed microfluidic system. The substrate is designed to have several positions for micro fluid elements and deformable chambers and uses micro channels to form a complete network. Since the thin film is elastic and deformable, one is able to impose a pressure on the thin film above the deformable chambers in this partially closed microfluidic system to drive the fluid into motion. Once the pressure is released, the fluid flows back to its original configuration.
摘要:
A collector for a negative pressure wound therapy system has a soft collecting bag with a gas-permeable unit and a liquid absorber. The collecting bag is connected to a wound-dressing unit via an inlet connecting set and is connected to a sensor assembly via a detecting connecting set. With the soft collecting bag, the collector occupies less volume. By the gas-permeable unit and the liquid absorber, the liquid and gas entering into the collecting bag quickly isolate. Moreover, multiple collectors connect in series to form a collector combination to reduce the frequency to replace the collector combination so that a longer usage time of the collector combination is available.
摘要:
A microfluidic chip with a built-in gravity-driven micropump is provided. The gravity-driven micropump comprises a winding channel, an inert fluidic material placed inside the winding channel, and a suction channel that links the winding channel to the microfluidic chip. The winding channel is for the inert fluidic material to flow in. A fixed volume of high density, inert fluidic material is placed in the winding channel to act as a micropump in the bio chip. When the microfluidic chip is placed in a declining or standing position, the inert fluidic material flows along the winding channel due to the gravity. The invention provides a simple, convenient, and robust microfluid pumping source. With the built-in micropump, this invention is free-of-pollution and saves the manufacturing cost for the pipe link between the bio chip and peripheral devices.
摘要:
The present invention relates to an autonomous microfluidic apparatus. The autonomous microfluidic apparatus is substantially a substrate having a microchannel structure arranged thereon. As a microfluid is being filled in a loading well situated upstream of the microchannel structure, the microfluid is affected by interactions between gravity, adhesive force and surface tension and thus driven to flow downstream in the microchannel structure while filling a plurality of manifolds formed in a area situated downstream of the microchannel structure, so that accurate and autonomous quantification and separation of the microfluid using the plural manifolds, each having a specific length, can be achieved and provided for biomedical inspection and analysis.
摘要:
A gravity-driven apparatus and method control the flow order of reactants in microfluidic devices which are employed in a microfluidic chip. The gravity-driven apparatus flow order control mainly comprises a plurality of reactant chambers arranged at different heights, a plurality of flow-control microchannels, and a reaction chamber having a winding collection microchannel. Each reactant chamber has an air-in vent. Each pair of neighboring flow-control microchannels has a U-shaped structure connecting the pair of neighboring flow-control microchannels. To activate the microfluidic device, the device is placed in an inclining or standing position and the air-in vents are unsealed. This method enhances the reliability of flow order control for multiple reactants. It can be built in a microfluidic chip, and does not use any actuating power or element. Therefore, it is low in energy-consumption, low in manufacturing cost and free of pollution.
摘要:
A fluid collector has a container, a T-tube, a first screw unit and a second screw unit. The T-tube is connected to the container and has a main pipe and a branch pipe. The first screw unit is mounted in an outlet end of the main pipe. The second screw unit is mounted in a connecting end of the branch pipe, which is connected to the main pipe. The branch pipe has a detecting opening far from the connecting end and connects to a detecting device. By changing the length of the first and second screw units, different detecting values of the pressure are adjusted according to containers with different capacities. Moreover, with the flowing resistance resulting from the first and second screw units, different pressure variations are performed when liquid or air passes through the T-tube. Therefore, massive hemorrhage is clearly identified to keep the patient safe.
摘要:
The present invention relates to a gravity-driven fraction separator and method thereof. The gravity-driven fraction separator is substantially a substrate having a microchannel structure arranged thereon, in which the microchannel structure is extending longitudinally on the substrate while sloping with respect to the level of the substrate by a specific angle. As a micro fluidics is being filled in a loading well situated upstream of the microchannel structure, the micro fluidics is driven by gravity to flow downstream in the microchannel structure while filling a plurality of manifolds formed in a area situated downstream of the microchannel structure, so that accurate quantification and separation of the micro fluidics using the plural manifolds, each having a specific length, can be achieved and provided for posterior inspection and analysis.
摘要:
A gravity-driven apparatus and method for controlling the flow order of reactants in microfluidic devices are provided, which are employed in a microfluidic chip. The gravity-driven apparatus flow order control mainly comprises a plurality of reactant chambers arranged in a stepwise pattern, a plurality of separate microchannels, and a reaction chamber having a winding converged microchannel. Each said reactant chamber has an air vent channel. Each pair of neighboring separate microchannels has a U-shaped structure connecting the pair of neighboring separate microchannels. To activate the microfluidic chip, the microfluidic chip is placed in a declining or standing position and the air vents are unsealed. This invention enhances the reliability of flow order control for multiple reactants. It can be built in a microfluidic chip, and needs not use any activate power or element. Therefore, it is low in energy-consumption, low in manufacturing cost and free-of-pollution.
摘要:
A fluid collector has a container, a T-tube, a first screw unit and a second screw unit. The T-tube is connected to the container and has a main pipe and a branch pipe. The first screw unit is mounted in an outlet end of the main pipe. The second screw unit is mounted in a connecting end of the branch pipe, which is connected to the main pipe. The branch pipe has a detecting opening far from the connecting end and connects to a detecting device. By changing the length of the first and second screw units, different detecting values of the pressure are adjusted according to containers with different capacities. Moreover, with the flowing resistance resulting from the first and second screw units, different pressure variations are performed when liquid or air passes through the T-tube. Therefore, massive hemorrhage is clearly identified to keep the patient safe.