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Bardell
Ronald L. Bardell, Minneapolis, MN US
| Patent application number | Description | Published |
|---|---|---|
| 20090215125 | DEVICES AND PROCESSES FOR NUCLEIC ACID EXTRACTION - Devices, processes, and kits for the extraction of nucleic acids from biological samples are disclosed. The devices comprise a first port, a second port, and a binding chamber intermediate and in fluid communication with the first port and the second port. The binding chamber comprises an unmodified flat glass surface effective for binding a heterogeneous population of nucleic acids. The first port, second port, and binding chamber define a continuous fluid pathway that is essentially free of nucleic acid-specific binding sites. | 08-27-2009 |
Ronald L. Bardell, St. Louis Park, MN US
| Patent application number | Description | Published |
|---|---|---|
| 20090029867 | DNA purification and analysis on nanoengineered surfaces - A microfluidic device for isolating genomic DNA from human leukocytes, simultaneously capturing and measuring the DNA for simplifying genetic analysis. The device contains a fluid inlet port, a fluid outlet port, and a DNA binding channel in contact with the fluid inlet port wherein at least a portion of at least one surface within the DNA binding channel is modified with a binding reagent such that DNA is preferentially bound to the surface. | 01-29-2009 |
| 20090081771 | SYSTEM AND METHOD FOR HEATING, COOLING AND HEAT CYCLING ON MICROFLUIDIC DEVICE - An integrated heat exchange system on a microfluidic card. According to one aspect of the invention, the portable microfluidic card has a heating, cooling and heat cycling system on-board such that the card can be used portably. The microfluidic card includes one or more reservoirs containing exothermic or endothermic material. Once the chemical process of the reservoir material is activated, the reservoir provides heat or cooling to specific locations of the microfluidic card. Multiple reservoirs may be included on a single card to provide varying temperatures. The assay chemicals can be moved to the various reservoirs to create a thermal cycle useful in many biological reactions, for example, Polymerase Chain Reaction (PCR) or rtPCR. According to another aspect of the invention, the integrated heat exchanger is an adjacent microfluidic circuit containing fluid that is either independently heated or cooled, or is an exothermic or endothermic material, such that the fluid in the adjacent circuit imparts a change in temperature to the assay fluid in an independent circuit. According to yet another aspect of the invention, a thermal electric cooler (TEC) is used for thermocycling the amplification chamber of a disposable microfluidic card. | 03-26-2009 |
Ronald Louis Bardell, Minneapolis, MN US
| Patent application number | Description | Published |
|---|---|---|
| 20090209911 | APPARATUS AND METHOD FOR PORTABLE LIQUID DRUG DELIVERY - An apparatus includes a cartridge having a liquid drug reservoir configured to hold a liquid drug and a volatile liquid reservoir configured to hold a volatile liquid. The cartridge is configured so that vaporization of at least some of the volatile liquid creates a flow of the liquid drug out of the liquid drug reservoir. The apparatus also includes a flow sensor configured to monitor the flow of the liquid drug, a liquid valve configured to regulate the flow of the liquid drug, and an insertion unit configured to deliver the liquid drug to a person. The cartridge may also include a vaporized gas chamber configured to hold the gas. The gas in the vaporized gas chamber expands and pushes the liquid drug out of the liquid drug reservoir. | 08-20-2009 |
Ron L. Bardell, Minneapolis, MN US
| Patent application number | Description | Published |
|---|---|---|
| 20090078657 | DEVICE FOR SEPARATION OF PARTICULATES FROM A BIOLOGICAL SAMPLE - A device for separating plasma from blood cells involves a separation fiber having one or more characteristics such as a high silica content, a low boron content, and/or no binder. | 03-26-2009 |
| 20090204025 | Method and apparatus for an improved sample capture device - A body fluid sampling device is provided. A mesh may be used to guide blood or fluid to travel directly from the wound to an analyte detecting port on the cartridge. Thus the volume of blood or body fluid produced at the wound site irregardless of its droplet geometry can be reliable and substantially completely transported to the analyte detecting member for measurement. | 08-13-2009 |
Timothy Michael Bardell, St. Louis Park, MN US
| Patent application number | Description | Published |
|---|---|---|
| 20090276322 | RETAILER DEBIT CARD SYSTEM - Methods for soliciting and enrolling customers for a retailer payment instrument are disclosed. For example, a method is disclosed for enrolling a customer for a retailer debit card which includes receiving enrollment data from the customer, establishing a check writer rating for the customer based on a history of checks associated with the customer and stored by the retailer, adjusting a validation threshold score based on the check writer rating, and denying enrollment of the customer if the validation score is less than the adjusted validation threshold score. Other associated methods and systems are also disclosed. | 11-05-2009 |