Patents by Inventor Zachary K. ZANDER

Zachary K. ZANDER 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: 11771543
    Abstract: In various embodiments, the present invention is directed to a degradable poly(ester urea) (PEU)-based adhesion barrier, particularly suitable for use in connection with surgical mesh repair in the treatment of hernias and other soft tissue injuries comprising an amino acid based poly(ester urea) backbone and one or more zwitterionic side chains connected to the amino acid based poly(ester urea) backbone through a sulfide bond. In some other embodiments, the present invention is directed to method of making the PEU-based adhesion barriers comprising: preparing an amino acid based PEU polymer or terpolymer having one or more allyl functional groups; preparing a thiol functionalized zwitterionic compound; and reacting the allyl functionalized PEU polymer or terpolymer with the thiol functionalized zwitterionic compound to form a degradable PEU-based adhesion barrier having an amino acid based PEU backbone having zwitterionic side chains.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: October 3, 2023
    Assignees: The University of Akron, Cook Medical Technologies LLC
    Inventors: Matthew Becker, Nathan Z. Dreger, Zachary K. Zander, Trenton Parsell, Michael Hiles
  • Patent number: 11155668
    Abstract: In various embodiments, the present invention provides a functionalized thermoplastic polyurethane (TPU) containing bulk incorporated or surface-grafted quaternary ammonium compounds (QAC)s for contact-killing of a variety of microbes, where the QACs are on the surface of TPU to provide a sterile surface material that prevents bacteria commonly involved in device-associated infections (DAIs) from proliferating. The functionalized TPUs of the present invention can be formed into a wide variety of 3-dimensional shapes, such as catheters, medical tubing, laryngeal or tracheal stents, sutures, prosthetics, wound dressings, and/or a coating for medical devices and contains the residue of either a QAC containing diol monomer or an alkene functional diol monomer, which then allows the TPU to be functionalized with a QAC containing disulfide or free thiol compound, to form a quaternary ammonium functionalized thermoplastic polyurethane compound having antimicrobial properties for use in medical devices.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: October 26, 2021
    Assignees: The University of Akron, Cook Medical Technologies, LLC
    Inventors: Matthew L. Becker, Zachary K. Zander, Sean Chambers, Alec Cerchiari, Willie C. McRoy, Jr.
  • Publication number: 20210212807
    Abstract: In various embodiments, the present invention is directed to a degradable poly(ester urea) (PEU)-based adhesion barrier, particularly suitable for use in connection with surgical mesh repair in the treatment of hernias and other soft tissue injuries comprising an amino acid based poly(ester urea) backbone and one or more zwitterionic side chains connected to the amino acid based poly(ester urea) backbone through a sulfide bond. In some other embodiments, the present invention is directed to method of making the PEU-based adhesion barriers comprising: preparing an amino acid based PEU polymer or terpolymer having one or more allyl functional groups; preparing a thiol functionalized zwitterionic compound; and reacting the allyl functionalized PEU polymer or terpolymer with the thiol functionalized zwitterionic compound to form a degradable PEU-based adhesion barrier having an amino acid based PEU backbone having zwitterionic side chains.
    Type: Application
    Filed: May 7, 2019
    Publication date: July 15, 2021
    Inventors: Matthew BECKER, Nathan Z. DREGER, Zachary K. ZANDER, Trenton PARSELL, Michael HILES
  • Publication number: 20190106525
    Abstract: In various embodiments, the present invention provides a functionalized thermoplastic polyurethane (TPU) containing bulk incorporated or surface-grafted quaternary ammonium compounds (QAC)s for contact-killing of a variety of microbes, where the QACs are on the surface of TPU to provide a sterile surface material that prevents bacteria commonly involved in device-associated infections (DAIs) from proliferating. The functionalized TPUs of the present invention can be formed into a wide variety of 3-dimensional shapes, such as catheters, medical tubing, laryngeal or tracheal stents, sutures, prosthetics, wound dressings, and/or a coating for medical devices and contains the residue of either a QAC containing diol monomer or an alkene functional diol monomer, which then allows the TPU to be functionalized with a QAC containing disulfide or free thiol compound, to form a quaternary ammonium functionalized thermoplastic polyurethane compound having antimicrobial properties for use in medical devices.
    Type: Application
    Filed: October 8, 2018
    Publication date: April 11, 2019
    Inventors: Matthew L. BECKER, Zachary K. ZANDER, Sean CHAMBERS, Alec CERCHIARI, Will McROY