Patents by Inventor David Hoelzle

David Hoelzle 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: 10168259
    Abstract: One aspect of the present disclosure can include a microfluidic device for imaging a tissue sample. The device can include a tissue chamber, a liquid inlet channel, and a liquid outlet channel. The tissue chamber can be defined by a plurality of walls, at least one of which is transparent. The liquid inlet channel can be fluid communication with the tissue chamber. The liquid outlet channel can be in fluid communication with the tissue chamber. The tissue chamber can be sized and dimensioned to completely immobilize the tissue sample during imaging.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: January 1, 2019
    Assignee: University of Notre Dame
    Inventors: Siyuan Zhang, Jeremiah Zartman, David Hoelzle, Wendy Alvarez Barrios, Victoria Zellmer, Cody Narciso
  • Patent number: 9975121
    Abstract: A microfluidic device for evaluating a tissue sample can include a tissue chamber, a liquid inlet channel, a liquid outlet channel, and at least one of components (1)-(3). The tissue chamber can be defined by a plurality of walls, at least one of which is transparent. The liquid inlet and outlet channels can be in fluid communication with the tissue chamber. Components (1)-(3) can include: (1) a deformable membrane disposed within the tissue chamber and being configured to oscillate, upon application of pressure thereto, to mechanically compress the tissue sample; (2) first and second electrodes disposed about the tissue chamber and being configured such that delivery of electrical energy thereto creates an electrical gradient across the tissue chamber; and (3) at least one deformable wall, which partially defines the tissue chamber and is configured to stretch either uniaxially or biaxially upon application of negative pressure to the tissue chamber.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: May 22, 2018
    Assignee: University of Notre Dame
    Inventors: Siyuan Zhang, Jeremiah Zartman, David Hoelzle, Cody Narciso
  • Publication number: 20150360224
    Abstract: A microfluidic device for evaluating a tissue sample can include a tissue chamber, a liquid inlet channel, a liquid outlet channel, and at least one of components (1)-(3). The tissue chamber can be defined by a plurality of walls, at least one of which is transparent. The liquid inlet and outlet channels can be in fluid communication with the tissue chamber. Components (1)-(3) can include: (1) a deformable membrane disposed within the tissue chamber and being configured to oscillate, upon application of pressure thereto, to mechanically compress the tissue sample; (2) first and second electrodes disposed about the tissue chamber and being configured such that delivery of electrical energy thereto creates an electrical gradient across the tissue chamber; and (3) at least one deformable wall, which partially defines the tissue chamber and is configured to stretch either uniaxially or biaxially upon application of negative pressure to the tissue chamber.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 17, 2015
    Inventors: Siyuan Zhang, Jeremiah Zartman, David Hoelzle, Cody Narciso
  • Publication number: 20150362411
    Abstract: One aspect of the present disclosure can include a microfluidic device for imaging a tissue sample. The device can include a tissue chamber, a liquid inlet channel, and a liquid outlet channel. The tissue chamber can be defined by a plurality of walls, at least one of which is transparent. The liquid inlet channel can be fluid communication with the tissue chamber. The liquid outlet channel can be in fluid communication with the tissue chamber. The tissue chamber can be sized and dimensioned to completely immobilize the tissue sample during imaging.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 17, 2015
    Inventors: Siyuan Zhang, Jeremiah Zartman, David Hoelzle, Wendy Alvarez Barrios, Victoria Zellmer, Cody Narciso