Patents by Inventor John P. Wikswo

John P. Wikswo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210252510
    Abstract: In one aspect of the invention, the fluidic device includes a fluidic chip includes a body having a first surface and an opposite, second surface, one or more channels formed in the body in fluidic communications with input ports and output ports for transferring one or more fluids between the input ports and the output ports, and a fluidic chip registration means formed on the first surface for aligning the fluidic chip with a support structure; and an actuator configured to engage with the one or more channels at the second surface of the body for selectively and individually transferring the one or more fluids through the one or more channels from at least one of the input ports to at least one of the output ports at desired flowrates.
    Type: Application
    Filed: August 20, 2019
    Publication date: August 19, 2021
    Inventors: David K. Schaffer, Dmitry A. Markov, Ronald S. Reiserer, Lisa McCawley, Michael Geuy, Clayton M. Britt, John P. Wikswo
  • Publication number: 20210239109
    Abstract: A peristaltic micropump include a plurality of channels, each channel being flexible, having a middle channel portion, and being operably in fluidic communications with a first port and a second port, and the middle channel portions of the plurality of channels being arranged in one or more concentric circles; and an actuator comprising a bearing assembly driven by a motor, the bearing assembly comprising a plurality of rolling members and a bearing accommodating member for accommodating the plurality of rolling members, the actuator being positioned in relation to the plurality of channels such that when the bearing accommodating member rotates, the plurality of rolling members rolls along the one or more concentric circles of the middle channel portions of the plurality of channels to cause individually fluids to transfer between the first port and the second port of each of the plurality of channels simultaneously at different flowrates.
    Type: Application
    Filed: August 20, 2019
    Publication date: August 5, 2021
    Inventors: John P. Wikswo, Ronald S. Reiserer, David K. Schaffer, Dmitry A. Markov, Clayton M. Britt
  • Publication number: 20210197194
    Abstract: The invention relates to a cartridge of a fluidic device. The fluidic device includes a fluidic chip, a body having a first surface and an opposite, second surface, one or more channels formed in the body in fluidic communications with input ports and output ports for transferring one or more fluids between the input ports and the output ports, and a fluidic chip registration means formed on the first surface for aligning the fluidic chip with a support structure; and an actuator configured to engage with the one or more channels at the second surface of the body for selectively and individually transferring the one or more fluids through the one or more channels from at least one of the input ports to at least one of the output ports at desired flowrates.
    Type: Application
    Filed: February 18, 2021
    Publication date: July 1, 2021
    Inventors: David K. Schaffer, Dmitry A. Markov, Ronald S. Reiserer, Lisa McCawley, Michael Geuy, Clayton M. Britt, John P. Wikswo
  • Publication number: 20210198607
    Abstract: One aspect of the invention provides a multichamber bioreactor. The multichamber bioreactor includes multiple planar layers stacked on each other defining at least one chamber and a clamping mechanism. The clamping mechanism includes a housing and retaining means received in the housing and configured to generate a controlled and uniform pressure to secure the stacked multiple planar layers in the housing. Each chamber is implemented from a separate fluidic layer, with each fluidic layer having ports and valves independent of the other layers. The micro fluidic ports can be actuated through a micro fluidic interconnect system utilizing rotary cylinder valves.
    Type: Application
    Filed: May 29, 2019
    Publication date: July 1, 2021
    Inventors: John P. WIKSWO, Eric C. SPIVEY, David K. SCHAFFER, Ronald S. REISERER, Kevin T. SEALE, Frank E. BLOCK, III
  • Patent number: 10876942
    Abstract: A system for applying and measuring tensions of a plurality of bio-object constructs includes a base; and a flexible body disposed on the base, wherein the flexible body defines a plurality of construct holes for accommodating the plurality of bio-object constructs, such that when the flexible body is bent, the bending of the flexible body causes tensions to be applied to the plurality of bio-object constructs, thereby causing displacements of the plurality of bio-object constructs.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: December 29, 2020
    Assignee: VANDERBILT UNIVERSITY
    Inventors: John P. Wikswo, Philip C. Samson
  • Publication number: 20200348218
    Abstract: A system for applying and measuring tensions of a plurality of bio-object constructs includes a base; and a flexible body disposed on the base, wherein the flexible body defines a plurality of construct holes for accommodating the plurality of bio-object constructs, such that when the flexible body is bent, the bending of the flexible body causes tensions to be applied to the plurality of bio-object constructs, thereby causing displacements of the plurality of bio-object constructs.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Inventors: John P. Wikswo, Philip C. Samson
  • Patent number: 10781809
    Abstract: A peristaltic micropump includes one or more flexible channels configured to transfer one or more pumped fluids, and an actuator configured to engage the one or more flexible channels and rotate about a central axis. The actuator includes a plurality of rolling elements and a driving element configured such that the driving element operably rotates about the central axis and each rolling element operably rolls about a respective axis that is not parallel to the central axis. The plurality of rolling elements is disposed between the one or more flexible channels and the driving element. The driving element includes a cage configured to capture the plurality of rolling elements such that the plurality of rolling elements is located at different radii from a center of the cage.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: September 22, 2020
    Assignee: VANDERBILT UNIVERSITY
    Inventors: Parker A. Gould, Loi T. Hoang, David K. Schaffer, Ronald S. Reiserer, Philip C. Samson, John P. Wikswo
  • Patent number: 10761001
    Abstract: A device for measuring a tension of a bio-object construct as it is being stretched that includes a microscope, a holding member for accommodating the bio-object, and a probe. The microscope includes a condenser, an objective and a stage positioned therebetween. The stage is movable along a horizontal plane. The holding member is fixable on the stage. The probe has a first end attached to the condenser, and a second end placed in the holding member. The stage operably moves such that the bio-object construct moves toward the second end of the probe and contacts with the second end of the probe, thereby causing a displacement of the second end of the probe and a displacement of the bio-object construct, which are used to measure the tension of the bio-object construct.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: September 1, 2020
    Assignees: VANDERBILT UNIVERSITY, THE UNITED STATES AS REPRESENTED BY THE DEPARTMENT OF VETERANS AFFAIRS
    Inventors: John P. Wikswo, Philip C. Samson, Jeffrey M. Davidson, Stephen R. Koch, Veniamin Yu Sidorov
  • Patent number: 10634665
    Abstract: Disclosed herein are embodiments of a device that can be used to mimic the biochemical and physiological actions of a lung organ. Also disclosed herein are embodiments of components that are included in the device as well as methods of making and using the device. Further disclosed are platform device embodiments and various components used therein that can be used in combination with the lung organ devices disclosed herein. In some embodiments, the disclosed devices can be used to determine drug toxicity and also can be used with one or more disease models to determine methods of treating disease.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: April 28, 2020
    Assignees: Triad National Security, LLC, Vanderbilt University
    Inventors: Rashi Iyer, Jen-Huang Huang, Pulak Nath, Jennifer Harris, John P. Wikswo, Jr.
  • Patent number: 10577574
    Abstract: The invention relates to a system of fluidic valves and pumps and associated fluidic channels integratable into a bio-object microfluidics module. The module includes input and output buses; upstream and downstream interconnection bus control valves (CVs) coupled to the input and output buses, respectively. It may include arterial, venous, wash and waste bus lines, each connecting between the upstream and downstream interconnection bus CVs. It may also include an input CV connecting to the arterial bus line, upstream interconnection bus CV, bio-object and inlets, and an output CV connecting to the bio-object, input CV, downstream interconnection bus CV and outlets; and a pump connecting between the input CV and bio-object. The system of fluidic valves and pumps can be arranged to provide MicroFormulator functionality enabling precise mixtures of drugs, chemicals, or biochemicals to be delivered in a time-dependent fashion to biological entities housed in individual wells or chambers.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: March 3, 2020
    Assignee: VANDERBILT UNIVERSITY
    Inventors: John P. Wikswo, Frank E. Block, III, Philip C. Samson
  • Publication number: 20200049140
    Abstract: A peristaltic micropump includes one or more flexible channels configured to transfer one or more pumped fluids, and an actuator configured to engage the one or more flexible channels and rotate about a central axis. The actuator includes a plurality of rolling elements and a driving element configured such that the driving element operably rotates about the central axis and each rolling element operably rolls about a respective axis that is not parallel to the central axis. The plurality of rolling elements is disposed between the one or more flexible channels and the driving element. The driving element includes a cage configured to capture the plurality of rolling elements such that the plurality of rolling elements is located at different radii from a center of the cage.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Inventors: Parker A. Gould, Loi T. Hoang, David K. Schaffer, Ronald S. Reiserer, Philip C. Samson, John P. Wikswo
  • Patent number: 10538726
    Abstract: A system for microdialysis imaging and regional fluidic delivery and control includes a microdialysis imager including a imaging head having N pixels aligned in a pixel array for monitoring a living bio-object associated with the pixel array; and a fluidic module coupled to the microdialysis imager for delivering a fluidic substance to and collecting effluent from the living bio-object, including a fluidic network having a plurality of valves, a plurality of fluidic channels in fluidic communication with the plurality of valves and one or more pumps coupled to corresponding fluidic channels, and a microcontroller coupled to the fluidic network for individually controlling the plurality of valves and the one or more pumps of the fluidic network as so to operably and selectively deliver the fluidic substance to and continuously collect the effluent from the living bio-object responsive to the delivered fluidic substance via each pixel in real time.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: January 21, 2020
    Assignee: VANDERBILT UNIVERSITY
    Inventors: John P. Wikswo, Ronald S. Reiserer, Kyle Hawkins
  • Patent number: 10532354
    Abstract: In certain aspects of the invention, a stackable device includes multiple elements stacked sequentially. A chamber is formed in each of the elements or between adjacent two of the elements, and each chamber is in fluid communication with an input channel and an output channel. The chambers are aligned with each other, and adjacent two chambers are separated from each other by a membrane. In certain aspects of the invention, a system includes at least one stackable device, each stackable device having multiple chambers; and at least one of a perfusion controller, a microformulator, and a microclinical analyzer in fluid communication with the at least one stackable device. In other aspects of the invention, the use of four microformulators, electrodes and an impedance analyzer can measure the impedance spectrum of each barrier in a multi-transwell plate.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: January 14, 2020
    Assignee: VANDERBILT UNIVERSITY
    Inventors: John P. Wikswo, Dmitry A. Markov, Ronald S. Reiserer
  • Patent number: 10487819
    Abstract: A peristaltic micropump includes one or more flexible channels configured to transfer one or more pumped fluids, and an actuator configured to engage the one or more flexible channels and rotate about a central axis. The actuator includes a plurality of rolling elements and a driving element configured such that the driving element operably rotates about the central axis and each rolling element operably rolls about a respective axis that is not parallel to the central axis. The plurality of rolling elements is disposed between the one or more flexible channels and the driving element. The driving element includes a cage configured to capture the plurality of rolling elements such that the plurality of rolling elements is located at different radii from a center of the cage.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: November 26, 2019
    Assignee: VANDERBILT UNIVERSITY
    Inventors: Parker A. Gould, Loi T. Hoang, Joseph R. Scherrer, William J. Matloff, Kevin T. Seale, Erica L. Curtis, David K. Schaffer, Douglas J. Hall, Ayeeshik Kole, Ronald S. Reiserer, Hunter Tidwell, Philip C. Samson, John P. Wikswo
  • Publication number: 20190336971
    Abstract: In certain aspects of the invention, a stackable device includes multiple elements stacked sequentially. A chamber is formed in each of the elements or between adjacent two of the elements, and each chamber is in fluid communication with an input channel and an output channel. The chambers are aligned with each other, and adjacent two chambers are separated from each other by a membrane. In certain aspects of the invention, a system includes at least one stackable device, each stackable device having multiple chambers; and at least one of a perfusion controller, a microformulator, and a microclinical analyzer in fluid communication with the at least one stackable device. In other aspects of the invention, the use of four microformulators, electrodes and an impedance analyzer can measure the impedance spectrum of each barrier in a multi-transwell plate.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Inventors: John P. Wikswo, Dmitry A. Markov, Ronald S. Reiserer
  • Patent number: 10464064
    Abstract: In certain aspects of the invention, a stackable device includes multiple elements stacked sequentially. A chamber is formed in each of the elements or between adjacent two of the elements, and each chamber is in fluid communication with an input channel and an output channel. The chambers are aligned with each other, and adjacent two chambers are separated from each other by a membrane. In certain aspects of the invention, a system includes at least one stackable device, each stackable device having multiple chambers; and at least one of a perfusion controller, a microformulator, and a microclinical analyzer in fluid communication with the at least one stackable device. In other aspects of the invention, the use of four microformulators, electrodes and an impedance analyzer can measure the impedance spectrum of each barrier in a multi-transwell plate.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: November 5, 2019
    Assignee: VANDERBILT UNIVERSITY
    Inventors: John P. Wikswo, Dmitry A. Markov, Ronald S. Reiserer
  • Patent number: 10444223
    Abstract: A microclinical analyzer usable for analysis of one or more bio-objects, each bio-object including an organ or a group of cells includes a fluidic network having a plurality of fluidic switches, a plurality of fluidic paths in fluid communication with the plurality of fluidic switches, and one or more on-chip pumps coupled to corresponding fluidic paths; a sensor array coupled to the fluidic network; and a microcontroller for individually controlling the plurality of fluidic switches and the one or more on-chip pumps of the fluidic network as so to operably and selectively deliver an effluent of at least one bio-object to the sensor array for detecting properties of the effluent, or to a predetermined outlet destination.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: October 15, 2019
    Assignee: VANDERBILT UNIVERSITY
    Inventors: John P. Wikswo, David E. Cliffel, Dmitry A. Markov, John A. McLean, Lisa Joy McCawley, Phillip C. Samson, Ronald S. Reiserer, Frank Emmanuel Block, Jennifer Robin McKenzie
  • Publication number: 20190249128
    Abstract: A system for microdialysis imaging and regional fluidic delivery and control includes a microdialysis imager including a imaging head having N pixels aligned in a pixel array for monitoring a living bio-object associated with the pixel array; and a fluidic module coupled to the microdialysis imager for delivering a fluidic substance to and collecting effluent from the living bio-object, including a fluidic network having a plurality of valves, a plurality of fluidic channels in fluidic communication with the plurality of valves and one or more pumps coupled to corresponding fluidic channels, and a microcontroller coupled to the fluidic network for individually controlling the plurality of valves and the one or more pumps of the fluidic network as so to operably and selectively deliver the fluidic substance to and continuously collect the effluent from the living bio-object responsive to the delivered fluidic substance via each pixel in real time.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 15, 2019
    Inventors: John P. Wikswo, Ronald S. Reiserer, Kyle Hawkins
  • Publication number: 20190064144
    Abstract: A microclinical analyzer usable for analysis of one or more bio-objects, each bio-object including an organ or a group of cells includes a fluidic network having a plurality of fluidic switches, a plurality of fluidic paths in fluid communication with the plurality of fluidic switches, and one or more on-chip pumps coupled to corresponding fluidic paths; a sensor array coupled to the fluidic network; and a microcontroller for individually controlling the plurality of fluidic switches and the one or more on-chip pumps of the fluidic network as so to operably and selectively deliver an effluent of at least one bio-object to the sensor array for detecting properties of the effluent, or to a predetermined outlet destination.
    Type: Application
    Filed: July 30, 2018
    Publication date: February 28, 2019
    Inventors: John P. Wikswo, David E. Cliffel, Dmitry A. Markov, John A. McLean, Lisa Joy McCawley, Phillip C. Samson, Ronald S. Reiserer, Frank Emmanuel Block, Jennifer Robin McKenzie
  • Publication number: 20190003941
    Abstract: A device for measuring a tension of a bio-object construct as it is being stretched that includes a microscope, a holding member for accommodating the bio-object, and a probe. The microscope includes a condenser, an objective and a stage positioned therebetween. The stage is movable along a horizontal plane. The holding member is fixable on the stage. The probe has a first end attached to the condenser, and a second end placed in the holding member. The stage operably moves such that the bio-object construct moves toward the second end of the probe and contacts with the second end of the probe, thereby causing a displacement of the second end of the probe and a displacement of the bio-object construct, which are used to measure the tension of the bio-object construct.
    Type: Application
    Filed: January 17, 2017
    Publication date: January 3, 2019
    Inventors: John P. Wikswo, Philip C. Samson, Jeffrey M. Davidson, Stephen R. Koch, Veniamin Yu Sidorov