Patents by Inventor David E. Cliffel

David E. Cliffel 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).

  • 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: 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
  • Patent number: 10119622
    Abstract: A rotary planar peristaltic micropump (RPPM) includes an actuator having a shaft engaged with a motor such that activation of the motor causes the shaft to rotate, and a bearing assembly engaged with the shaft. The bearing assembly has a bearing cage defining a plurality of spaced-apart openings thereon, and a plurality of rolling-members accommodated in the plurality of spaced-apart openings of the bearing cage, such that when the shaft rotates, the plurality of rolling-members of the bearing assembly rolls along a circular path. The RPPM also includes a fluidic path in fluidic communication with first and second ports. The fluidic path is positioned under the actuator and coincident with the circular path, such that when the shaft of the actuator rotates, the plurality of rolling-members of the bearing assembly rolls along the fluidic path to cause a fluid to transfer between the first and second ports.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: November 6, 2018
    Assignee: VANDERBILT UNIVERSITY
    Inventors: Frank E. Block, III, Philip C. Samson, Erik M. Werner, Dmitry A. Markov, Ronald S. Reiserer, Jennifer R. Mckenzie, David E. Cliffel, William J. Matloff, Frank E. Block, Jr., Joseph R. Scherrer, W. Hunter Tidwell, John P. Wikswo
  • Patent number: 10078075
    Abstract: In one aspect of the invention, an integrated bio-object microfluidics chip includes a fluidic network having a plurality of inlets for providing a plurality of fluids, a plurality of outlets, a bio-object chamber for accommodating at least one bio-object, a plurality of fluidic switches, and one or more pumps, coupled to each other such that at least one fluidic switch operably and selectively receives one fluid from a corresponding inlet and routes the received fluid, through the one or more pumps, to the bio-object chamber so as to perfuse the at least one bio-object therein, and one of the downstream fluidic switches selectively delivers an effluent of the at least one bio-object responsive to the perfusion to a predetermined outlet destination, or to the at least one fluidic switch for recirculation.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: September 18, 2018
    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: 20180080570
    Abstract: A rotary planar peristaltic micropump (RPPM) includes an actuator having a shaft engaged with a motor such that activation of the motor causes the shaft to rotate, and a bearing assembly engaged with the shaft. The bearing assembly has a bearing cage defining a plurality of spaced-apart openings thereon, and a plurality of rolling-members accommodated in the plurality of spaced-apart openings of the bearing cage, such that when the shaft rotates, the plurality of rolling-members of the bearing assembly rolls along a circular path. The RPPM also includes a fluidic path in fluidic communication with first and second ports. The fluidic path is positioned under the actuator and coincident with the circular path, such that when the shaft of the actuator rotates, the plurality of rolling-members of the bearing assembly rolls along the fluidic path to cause a fluid to transfer between the first and second ports.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Inventors: Frank E. Block, III, Philip C. Samson, Erik M. Werner, Dmitry A. Markov, Ronald S. Reiserer, Jennifer R. Mckenzie, David E. Cliffel, William J. Matloff, Frank E. Block, JR., Joseph R. Scherrer, W. Hunter Tidwell, John P. Wikswo
  • Patent number: 9874285
    Abstract: A platform for cultivation, maintenance, and/or analysis of one or more bio-objects includes one or more integrated bio-object microfluidics modules. Each integrated bio-object microfluidics module is configured to cultivate, maintain, analyze and/or mimic functionalities of a respective bio-object, and includes one or more on-chip pumps; a plurality of fluidic switches; and a microfluidic chip in fluid communication with the one or more on-chip pumps and the plurality of fluidic switches, having at least one chamber for accommodating the bio-object and a plurality of fluidic paths connecting the at least one chamber, the one or more on-chip pumps and the plurality of fluidic switches, and a power and control unit adapted for selectively and individually controlling the one or more on-chip pumps and the plurality of fluidic switches for performing bio-object microfluidics functions.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: January 23, 2018
    Assignee: VANDERBILT UNIVERSITY
    Inventors: Frank E. Block, III, Philip C. Samson, Erik M. Werner, Dmitry A. Markov, Ronald S. Reiserer, Jennifer R. Mckenzie, David E. Cliffel, William J. Matloff, Frank E. Block, Jr., Joseph R. Scherrer, W. Hunter Tidwell, John P. Wikswo
  • Patent number: 9725687
    Abstract: The invention provides integrated Organ-on-Chip microphysiological systems representations of living Organs and support structures for such microphysiological systems.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: August 8, 2017
    Assignees: PRESIDENT AND FELLOWS OF HARVARD COLLEGE, VANDERBILT UNIVERSITY
    Inventors: John P. Wikswo, Philip C. Samson, Frank Emmanuel Block, III, Ronald S. Reiserer, Kevin Kit Parker, John A. McLean, Lisa Joy McCawley, Dmitry Markov, Daniel Levner, Donald E. Ingber, Geraldine A. Hamilton, Josue A. Goss, Robert Cunningham, David E. Cliffel, Jennifer Robin McKenzie, Anthony Bahinski, Christopher David Hinojosa
  • Publication number: 20150298123
    Abstract: A platform for cultivation, maintenance, and/or analysis of one or more bio-objects includes one or more integrated bio-object microfluidics modules. Each integrated bio-object microfluidics module is configured to cultivate, maintain, analyze and/or mimic functionalities of a respective bio-object, and includes one or more on-chip pumps; a plurality of fluidic switches; and a microfluidic chip in fluid communication with the one or more on-chip pumps and the plurality of fluidic switches, having at least one chamber for accommodating the bio-object and a plurality of fluidic paths connecting the at least one chamber, the one or more on-chip pumps and the plurality of fluidic switches, and a power and control unit adapted for selectively and individually controlling the one or more on-chip pumps and the plurality of fluidic switches for performing bio-object microfluidics functions.
    Type: Application
    Filed: November 20, 2013
    Publication date: October 22, 2015
    Inventors: Frank E. Block, III, Philip C. Samson, Erik M. Werner, Dmitry A. Markov, Ronald S. Reiserer, Jennifer R. Mckenzie, David E. Cliffel, William J. Matloff, Frank E. Block, Joseph R. Scherrer, W. Hunter Tidwell, John P. Wikswo
  • Publication number: 20150004077
    Abstract: The invention provides integrated Organ-on-Chip microphysiological systems representations of living Organs and support structures for such microphysiological systems.
    Type: Application
    Filed: December 10, 2012
    Publication date: January 1, 2015
    Inventors: John P. Wikswo, Philip C. Samson, Frank Emmanuel Block, III, Ronald S. Reiserer, Kevin Kit Parker, John A. McLean, Lisa Joy McCawley, Dmitry Markov, Daniel Levner, Donald E. Ingber, Geraldine A. Hamilton, Josue A. Goss, Robert Cunningham, David E. Cliffel, Jennifer Robin McKenzie, Anthony Bahinski, Christopher David Hinojosa
  • Publication number: 20140356849
    Abstract: In one aspect of the invention, an integrated bio-object microfluidics chip includes a fluidic network having a plurality of inlets for providing a plurality of fluids, a plurality of outlets, a bio-object chamber for accommodating at least one bio-object, a plurality of fluidic switches, and one or more pumps, coupled to each other such that at least one fluidic switch operably and selectively receives one fluid from a corresponding inlet and routes the received fluid, through the one or more pumps, to the bio-object chamber so as to perfuse the at least one bio-object therein, and one of the downstream fluidic switches selectively delivers an effluent of the at least one bio-object responsive to the perfusion to a predetermined outlet destination, or to the at least one fluidic switch for recirculation.
    Type: Application
    Filed: December 10, 2012
    Publication date: December 4, 2014
    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: 20140042407
    Abstract: One aspect of the present disclosure relates to a biohybrid, photoelectrochemical energy conversion device including a first electrode, a second electrode, and a multilayer photoconductive organic film interposed between the first and second electrodes. The second electrode is formed from a semiconductor material. Each layer of the photoconductive organic film includes at least one light harvesting complex.
    Type: Application
    Filed: July 29, 2013
    Publication date: February 13, 2014
    Applicant: Vanderbilt University
    Inventors: David E. Cliffel, Gabriel LeBlanc, G. Kane Jennings
  • Patent number: 8003378
    Abstract: A bioreactor for cultivating living cells in a liquid medium. In one embodiment of the present invention, the bioreactor includes a first substrate having a first surface, an opposite second surface and edges. The bioreactor further includes a second substrate having a first surface and an opposite second surface, defining a cavity with a bottom surface, where the bottom surface is located therebetween the first surface and the second surface. The first surface of the first substrate is received by the second surface of the second substrate to cover the cavity so as to form a channel for receiving cells and a liquid medium. In forming the bioreactor, the channel is sized to allow the growth of a layer of cells on a biocompatible coating layer and a flow of liquid in the channel. The flow of liquid is controlled so as to provide a known shear force to the layer of cells. The flow of liquid can be further controlled so as to provide an environment that simulates a vascular space in the channel.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: August 23, 2011
    Assignee: Vanderbilt University
    Inventors: John P. Wikswo, Franz J. Baudenbacher, Ales Prokop, Eugene LeBoeuf, Chang Y. Chung, David E. Cliffel, Frederick R. Haselton, William H. Hofmeister, Charles P. Lin, Lisa J. McCawley, Randall S. Reiserer, Mark A. Stremler