摘要:
A microfluidic system includes a bubble valve for regulating fluid flow through a microchannel. The bubble valve includes a fluid meniscus interfacing the microchannel interior and an actuator for deflecting the membrane into the microchannel interior to regulate fluid flow. The actuator generates a gas bubble in a liquid in the microchannel when a sufficient pressure is generated on the membrane.
摘要:
A compression garment apparatus includes a compression garment and a pressurizer. The pressurizer intermittently pressurizes a therapeutic bladder on the compression garment and pressurizes a support bladder on the compression garment to enhance the fit of the compression garment and maintain the therapeutic bladder in position with respect to a target compression zone on a body part on which the garment is worn. The support bladder may be selectively pressurized when needed based at least in part on sensed physical characteristics.
摘要:
A compression garment adapted for placement in a self-retaining configuration on a body part for imparting compression therapy on the body part. The compression garment includes a flexible wrap and a bladder held in use by the wrap for compressing the body part. The wrap includes and inner flap and an outer flap. The outer flap overlaps the inner flap when the garment is in a self-retaining configuration on the body part. A fastener secures the wrap in the self-retaining configuration. When the outer flap overlaps the inner flap, at least a portion of the inner flap is exposed forming a grip for grasping the inner flap when tightening and fastening the garment in the self-retaining configuration.
摘要:
A compression garment assembly comprises a compression garment adapted for placement on a body part in a self-retaining configuration and for removal from the body part. The compression garment has at least one inflatable bladder for applying compression to the body part. A portable controller unit is adapted for fluid connection to the inflatable bladder and is configured for cyclically inflating the bladder. The compression garment and portable controller unit are configured so that the portable controller unit must be disconnected from the compression garment before the compression garment can be removed from the body part. Loss of the portable controller unit by, for example, accidental disposal with the compression garment is thus prevented.
摘要:
A system and method for integrating microfluidic components in a microfluidic system enables the microfluidic system to perform a selected microfluidic function. A capping module includes a microfluidic element for performing a microfluidic function. The capping module is stacked on a microfluidic substrate having microfluidic plumbing to incorporate the microfluidic function into the system. The microfluidic element may comprise a matrix having an affinity for selected molecules in a sample. The matrix binds, reacts with and/or retains the selected molecules without affecting other molecules in the sample.
摘要:
A system and method for integrating microfluidic components in a microfluidic system enables the microfluidic system to perform a selected microfluidic function. A capping module includes a microfluidic element for performing a microfluidic function. The capping module is stacked on a microfluidic substrate having microfluidic plumbing to incorporate the microfluidic function into the system. An infusion pump for delivering a fluid from a fluid source may be integrated in a microfluidic chip using a capping module having pumping components formed therein.
摘要:
An optical system for acquiring fast spectra from spatially channel arrays includes a light source for producing a light beam that passes through the microfluidic chip or the channel to be monitored, one or more lenses or optical fibers for capturing the light from the light source after interaction with the particles or chemicals in the microfluidic channels, and one or more detectors. The detectors, which may include light amplifying elements, detect each light signal and transducer the light signal into an electronic signal. The electronic signals, each representing the intensity of an optical signal, pass from each detector to an electronic data acquisition system for analysis. The light amplifying element or elements may comprise an array of phototubes, a multianode phototube, or a multichannel plate based image intensifier coupled to an array of photodiode detectors.
摘要:
A latching microregulator for regulating liquid flow on micro-scale levels comprises a substrate having an inlet port and an outlet port, a valve element defining a valve chamber for opening and closing the inlet port, and an actuator assembly for actuating the valve element. The valve chamber is configured to contain a volume of fluid, and the inlet port and the outlet port are in fluid communication with the valve chamber to provide a liquid flow path through the chamber. The actuator assembly comprises a cantilever beam for moving the valve element between an open position and a closed position, an actuator, such as a piezoelectric element, for moving the cantilever beam, and a latch, such as a permanent magnet, for securing the cantilever beam in the closed position. A flow regulation system comprises a plurality of fluid channels of varied flow conductance and a plurality of latching microregulators for selectively blocking or allowing flow through each of the fluid channels.
摘要:
An electromagnetic micropump for pumping small volumes of liquids and gases comprises a magnetic actuator assembly, a flexible membrane and a housing defining a chamber and a plurality of valves. The magnetic actuator assembly comprises a coil and a permanent magnet for deflecting the membrane to effect pumping of the fluid. A plurality of micropumps may be stacked together to increase pumping capacity.
摘要:
A microfluidic system includes a bubble valve for regulating fluid flow through a microchannel. The bubble valve includes a fluid meniscus interfacing the microchannel interior and an actuator for deflecting the membrane into the microchannel interior to regulate fluid flow. The actuator generates a gas bubble in a liquid in the microchannel when a sufficient pressure is generated on the membrane.