Patent application number | Description | Published |
20090053726 | SYSTEMS AND METHODS FOR REAL-TIME PCR - In one aspect, the present invention provides a systems and methods for the real-time amplification and analysis of a sample of DNA. | 02-26-2009 |
20090317874 | SYSTEMS AND METHODS FOR AMPLIFYING NUCLEIC ACIDS - An apparatus for performing a thermocyclic process, such as amplifying DNA, includes a microfluidic chip with a channel formed therein and one or more thermal distribution elements disposed over portions of the chip. Each thermal distribution element is configured to distribute thermal energy from an external thermal energy source substantially uniformly over the portion of the chip covered by the thermal distribution element. The portion of the chip covered by the thermal distribution element thereby comprises a discrete temperature zone. Other temperature zones can be defined by other thermal distribution elements or by portions of the chip not covered by a thermal distribution element. The channel is configured so that a fluid flowing through the channel would enter and exit the different temperature zones a plurality of times, thereby alternately exposing the fluid to the temperature of each zone for a period of time required for the fluid to traverse the zone. | 12-24-2009 |
20090320930 | SYSTEM AND METHOD FOR MICROFLUIDIC FLOW CONTROL - A system and method for controlling fluid flow within a microchannel includes a fluid circuit comprising a fluid outlet well and one or more fluid inlet wells, all in communication with a microchannel. A negative pressure differential is applied to the outlet well and fluid flow from an inlet well into the microchannel is controlled by opening or closing the inlet well to atmospheric pressure. To stop fluid flow from the inlet well, a negative pressure differential may be applied to the inlet well to equalize pressure between the inlet and outlet wells. By sequentially opening and closing different inlet wells to atmosphere, controlled amounts of different reagents can be serially introduced into the microchannel. | 12-31-2009 |
20090325159 | SYSTEM AND METHOD TO PREVENT CROSS-CONTAMINATION IN ASSAYS PERFORMED IN A MICROFLUIDIC CHANNEL - The present application discloses systems and methods for preventing contamination in assays performed in microfluidic channels. In one embodiment, a buffer of non-reactive fluid is provided between an input port and a microchannel in which assays are performed during such times that flow from the input port is stopped. In general, an amount of non-reactive fluid is drawn into a channel connecting the stopped input port to the microchannel. Thus, any seepage, or diffusion, from the channel connecting the stopped input port to the microchannel will be of the non-reactive fluid, not the reagent, or other potentially-contaminating fluid, introduced through the input port. In one embodiment, microvalves and a negative pressure differential source control flow of reagents into the microchannel and the flow of non-reactive fluid into the inlet conduits. | 12-31-2009 |
20100068765 | SYSTEMS AND METHODS FOR THE AMPLIFICATION OF DNA - A system for amplifying nucleic acids is disclosed which, in one embodiment, includes a fluidic device having a sample channel and a heat exchange channel disposed sufficiently close to the sample channel such that a heat exchange fluid in the heat exchange channel can cause a sample in the sample channel to gain or lose heat at desired levels. In one illustrative embodiment, the system further includes three reservoirs coupled to the heat exchange channel and a temperature control system configured to heat fluids stored in the respective reservoirs at different temperatures. One or more pumps and a controller are configured to cause fluid stored in the reservoirs to enter and flow through the heat exchange channel at different times. | 03-18-2010 |
20100074799 | Fluidic Medical Devices and Uses Thereof - This invention is in the field of medical devices. Specifically, the present invention provides fluidic systems having a plurality of reaction sites surrounded by optical barriers to reduce the amount of optical cross-talk between signals detected from various reaction sites. The invention also provides a method of manufacturing fluidic systems and methods of using the systems. | 03-25-2010 |
20110008223 | FLUID INTERFACE CARTRIDGE FOR A MICROFLUIDIC CHIP - An interface cartridge for a microfluidic chip, with microfluidic process channels and fluidic connection holes at opposed ends of the process channels, provides ancillary fluid structure, including fluid flow channels and input and/or waste wells, which mix and/or convey reaction fluids to the fluidic connection holes and into the process channels of the microfluidic chip. | 01-13-2011 |
20110081136 | COMBINED THERMAL DEVICES FOR THERMAL CYCLING - The invention relates to systems and methods including a combination of thermal generating device technologies to achieve more efficiency and accuracy in PCR temperature cycling of nucleic samples undergoing amplification. | 04-07-2011 |
20120145253 | SYSTEM AND METHOD FOR MICROFLUIDIC FLOW CONTROL - A system and method for controlling fluid flow within a microchannel includes a fluid circuit comprising a fluid outlet well and one or more fluid inlet wells, all in communication with a microchannel. A negative pressure differential is applied to the outlet well and fluid flow from an inlet well into the microchannel is controlled by opening or closing the inlet well to atmospheric pressure. To stop fluid flow from the inlet well, a negative pressure differential may be applied to the inlet well to equalize pressure between the inlet and outlet wells. By sequentially opening and closing different inlet wells to atmosphere, controlled amounts of different reagents can be serially introduced into the microchannel. | 06-14-2012 |
20130224845 | FLUID INTERFACE CARTRIDGE FOR A MICROFLUIDIC CHIP - An interface cartridge for a microfluidic chip, with microfluidic process channels and fluidic connection holes at opposed ends of the process channels, provides ancillary fluid structure, including fluid flow channels and input and/or waste wells, which mix and/or convey reaction fluids to the fluidic connection holes and into the process channels of the microfluidic chip. | 08-29-2013 |
20140065703 | COMBINED THERMAL DEVICES FOR THERMAL CYCLING - The invention relates to systems and methods including a combination of thermal generating device technologies to achieve more efficiency and accuracy in PCR temperature cycling of nucleic samples undergoing amplification. | 03-06-2014 |