Patents Assigned to DIFUSION TECHNOLOGIES, INC.
  • Patent number: 9492584
    Abstract: Methods of post-loading ceramic particles with antimicrobial metal cations are disclosed. In certain embodiments, the post-loaded particles are zeolites, wherein the zeolites have been incorporated into a resin and the combination is used as an implantable device. In certain embodiments, the polymer is a thermoplastic polymer such as polyaryletheretherketone (PEEK). In certain embodiments, the source of antimicrobial activity includes ion-exchangeable cations contained in a zeolite. In certain embodiments, disclosed are methods of imparting antimicrobial activity to devices by controlling the delivery of certain cations through ion-exchange via a zeolite incorporated in the device.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: November 15, 2016
    Assignee: DiFusion Technologies, Inc.
    Inventors: Joseph J. Crudden, Derrick Johns
  • Patent number: 9375321
    Abstract: Devices such as orthopedic implants are composed of a thermoplastic resin such as polyaryletheretherketone (PEEK), and include a ceramic species, such as a zeolite, to enhance its hydrophilic properties. The ceramic species can be a surface coating, can be incorporated or embedded into the thermoplastic resin, or can be both a surface coating and incorporated or embedded into the resin. In certain embodiments, the ceramic species is zeolite that is incorporated into the device, especially at the exposed surface of the device, and is devoid of antimicrobial metal ions. The device is introduced into the body surgically.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: June 28, 2016
    Assignee: DiFusion Technologies, Inc.
    Inventors: Peter Whang, Joseph Crudden, Derrick W. Johns
  • Patent number: 9132576
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: September 15, 2015
    Assignee: DiFusion Technologies, Inc.
    Inventors: Joseph J. Crudden, Derrick Johns
  • Patent number: 9107765
    Abstract: Devices such as orthopedic implants are composed of a thermoplastic resin such as polyaryletheretherketone (PEEK), and include a ceramic species, such as a zeolite, to enhance its hydrophilic properties. The ceramic species can be a surface coating, can be incorporated or embedded into the thermoplastic resin, or can be both a surface coating and incorporated or embedded into the resin. In certain embodiments, the ceramic species is zeolite that is incorporated into the device, especially at the exposed surface of the device, and is devoid of antimicrobial metal ions. The device is introduced into the body surgically.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: August 18, 2015
    Assignee: DiFusion Technologies, Inc.
    Inventors: Gary Ghiselli, Peter Whang, Jami Hafiz, Joseph Crudden, Derrick W. Johns
  • Patent number: 8840914
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: September 23, 2014
    Assignee: DiFusion Technologies, Inc.
    Inventors: Joseph J. Crudden, Jami Hafiz, James E. Deaton, John R. Pepper, Derrick Johns
  • Patent number: 8821912
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: September 2, 2014
    Assignee: DiFusion Technologies, Inc.
    Inventors: Joseph J. Crudden, Jami Hafiz, James E. Deaton, John R. Pepper, Derrick Johns
  • Publication number: 20130073042
    Abstract: Devices such as orthopedic implants are composed of a thermoplastic resin such as polyaryletheretherketone (PEEK), and include a ceramic species, such as a zeolite, to enhance its hydrophilic properties. The ceramic species can be a surface coating, can be incorporated or embedded into the thermoplastic resin, or can be both a surface coating and incorporated or embedded into the resin. In certain embodiments, the ceramic species is zeolite that is incorporated into the device, especially at the exposed surface of the device, and is devoid of antimicrobial metal ions. The device is introduced into the body surgically.
    Type: Application
    Filed: May 6, 2011
    Publication date: March 21, 2013
    Applicant: DIFUSION TECHNOLOGIES, INC.
    Inventors: Gary Ghiselli, Peter Whang, Jami Hafiz, Joseph Crudden, Derrick W. Johns
  • Publication number: 20130037991
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Application
    Filed: October 17, 2012
    Publication date: February 14, 2013
    Applicant: DIFUSION TECHNOLOGIES, INC.
    Inventor: DiFusion Technologies, Inc.
  • Publication number: 20130004585
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Application
    Filed: December 10, 2010
    Publication date: January 3, 2013
    Applicant: DIFUSION TECHNOLOGIES, INC.
    Inventors: Joseph J. Crudden, Jami Hafiz, James E. Deaton, John R. Pepper, Derrick Johns
  • Publication number: 20120315340
    Abstract: Methods of post-loading ceramic particles with antimicrobial metal cations are disclosed. In certain embodiments, the post-loaded particles are zeolites, wherein the zeolites have been incorporated into a resin and the combination is used as an implantable device. In certain embodiments, the polymer is a thermoplastic polymer such as polyaryletheretherketone (PEEK). In certain embodiments, the source of antimicrobial activity includes ion-exchangeable cations contained in a zeolite. In certain embodiments, disclosed are methods of imparting antimicrobial activity to devices by controlling the delivery of certain cations through ion-exchange via a zeolite incorporated in the device.
    Type: Application
    Filed: November 24, 2010
    Publication date: December 13, 2012
    Applicant: DIFUSION TECHNOLOGIES, INC.
    Inventors: Joseph J. Crudden, Derrick Johns
  • Publication number: 20120141599
    Abstract: Medical implants such as bone graft substitutes that include one or more cations are delivered in a local environment to promote osteogenesis. Zeolite loaded with a metal cation in combination with an implant such as a bone graft substitute can be used as an implant in the body to regulate protein transcription and translation. Also disclosed are methods of promoting osteogenesis in a patient in need thereof, methods for modulating bone formation and mineralization by implanting in a patient a medical implant comprising ion-exchangeable cations, and methods of regulating BMP gene expression in bone cells in a patient by controlling the delivery of certain cations through ion-exchange via a zeolite incorporated in a bone substitute implanted in a patient so that BMP gene expression can be upregulated or downregulated appropriately.
    Type: Application
    Filed: March 30, 2010
    Publication date: June 7, 2012
    Applicant: DIFUSION TECHNOLOGIES, INC.
    Inventors: Derrick Johns, Matthew Geck, Peter Whang, Jami Hafiz