Patents by Inventor John F. Wironen

John F. Wironen 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: 9332750
    Abstract: This invention is a novel method for perfusion of a porous implant which achieves efficient interpenetration of desired factors into and removal of undesirable factors from the pores of the implant, cleaning of the implant, efficient passivation of the implant (inactivation of pathogens, microorganisms, cells, viruses and the like and reduction in antigenicity thereof), and the novel implant produced by such treatment. The process presents a system wherein the rate of pressure cycling, the fact of pressure cycling, and the amplitude of pressure cycling, results in highly cleaned tissues and other implants for implantation.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: May 10, 2016
    Assignee: RTI Surgical, Inc.
    Inventors: C. Randal Mills, John F. Wironen, Sean Hanstke
  • Publication number: 20140193798
    Abstract: This invention is a novel method for perfusion of a porous implant which achieves efficient interpenetration of desired factors into and removal of undesirable factors from the pores of the implant, cleaning of the implant, efficient passivation of the implant (inactivation of pathogens, microorganisms, cells, viruses and the like and reduction in antigenicity thereof), and the novel implant produced by such treatment. The process presents a system wherein the rate of pressure cycling, the fact of pressure cycling, and the amplitude of pressure cycling, results in highly cleaned tissues and other implants for implantation.
    Type: Application
    Filed: March 11, 2014
    Publication date: July 10, 2014
    Applicant: RTI Surgical, Inc.
    Inventors: C. Randal Mills, John F. Wironen, Sean Hanstke
  • Patent number: 8669043
    Abstract: A method for perfusion of a porous implant which achieves efficient interpenetration of desired factors into and removal of undesirable factors from the pores of the implant, cleaning of the implant, efficient passivation of the implant, and the implant produced by such treatment. A system wherein the rate of pressure cycling, the fact of pressure cycling, and the amplitude of pressure cycling, results in highly cleaned tissues and other implants. Goals include between about a one to twelve log reduction in bacterial contamination, between about a one to fifteen log reduction in enveloped virus contamination, up to about a five log reduction in non-enveloped virus contamination, between about a two to tenfold reduction in endotoxin, maintenance of implant or graft biologic and biomechanical properties, absence of tissue toxicity due to cleaning solutions used, and reduced implant antigenicity.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: March 11, 2014
    Assignee: RTI Surgical, Inc.
    Inventors: C. Randal Mills, John F. Wironen, Sean Hanstke
  • Patent number: 8652503
    Abstract: A bone paste useful in the orthopedic arts, for example in the repair of non-union fractures, periodontal ridge augmentation, craniofacial surgery, implant fixation, impaction grafting, or any other procedure in which generation of new bone is deemed necessary, is provided by a composition comprising a substantially bioabsorbable osteogenic compound in a gelatin matrix. In various embodiments, the osteogenic compound is selected from (i) demineralized bone matrix (DBM); (ii) bioactive glass ceramic, BIOGLASS®, bioactive ceramic, calcium phosphate ceramic, hydroxyapatite, hydroxyapatite carbonate, corraline hydroxyapatite, calcined bone, tricalcium phosphate, or like material; (iii) bone morphogenetic protein, TGF-?, PDGF, or mixtures thereof, natural or recombinant; and (iv) mixtures of (i)-(iii).
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: February 18, 2014
    Assignees: University of Florida Research Foundation, Inc., Regeneration Technologies, Inc.
    Inventors: John F. Wironen, Jamie M. Grooms
  • Publication number: 20120323324
    Abstract: Disclosed herein is processed dermis graft for use in orthopedic surgical procedures. Specifically exemplified herein is a processed dermis graft comprising one or more bone blacks having a groove cut into the surface thereof, wherein said groove is sufficient to accommodate a fixation screw. Also disclosed is a method of processing dermis that results in a dermis derived implant suitable to replace a tendon or ligament in a recipient in need thereof. Other compositions and applications of a dermis derived implant, and methods of manufacture and use, are disclosed.
    Type: Application
    Filed: August 23, 2012
    Publication date: December 20, 2012
    Inventors: Davna Buskirk, Chris Seid, John F. Wironen, James M. Gross, Gina Scurti
  • Publication number: 20120214149
    Abstract: A method for perfusion of a porous implant which achieves efficient interpenetration of desired factors into and removal of undesirable factors from the pores of the implant, cleaning of the implant, efficient passivation of the implant, and the implant produced by such treatment. A system wherein the rate of pressure cycling, the fact of pressure cycling, and the amplitude of pressure cycling, results in highly cleaned tissues and other implants. Goals include between about a one to twelve log reduction in bacterial contamination, between about a one to fifteen log reduction in enveloped virus contamination, up to about a five log reduction in non-enveloped virus contamination, between about a two to tenfold reduction in endotoxin, maintenance of implant or graft biologic and biomechanical properties, absence of tissue toxicity due to cleaning solutions used, and reduced implant antigenicity.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 23, 2012
    Inventors: C. Randal Mills, John F. Wironen, Sean Hanstke
  • Patent number: 8142991
    Abstract: This invention is a novel method for perfusion of a porous implant which achieves efficient interpenetration of desired factors into and removal of undesirable factors from the pores of the implant, cleaning of the implant, efficient passivation of the implant (inactivation of pathogens, microorganisms, cells, viruses and the like and reduction in antigenicity thereof), and the novel implant produced by such treatment. The process presents a system wherein the rate of pressure cycling, the fact of pressure cycling, and the amplitude of pressure cycling, results in highly cleaned tissues and other implants for implantation.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: March 27, 2012
    Assignee: RTI Biologics, Inc.
    Inventors: C. Randal Mills, John F. Wironen, Sean Hanstke
  • Publication number: 20110301707
    Abstract: Disclosed herein is processed dermis graft for use in orthopedic surgical procedures. Specifically exemplified herein is a processed dermis graft comprising one or more bone blacks having a groove cut into the surface thereof, wherein said groove is sufficient to accommodate a fixation screw. Also disclosed is a method of processing dermis that results in a dermis derived implant suitable to replace a tendon or ligament in a recipient in need thereof. Other compositions and applications of a dermis derived implant, and methods of manufacture and use, are disclosed.
    Type: Application
    Filed: October 29, 2008
    Publication date: December 8, 2011
    Inventors: Davna Buskirk, Chris Seid, John F. Wironen, James M. Gross, Gina Scurti
  • Patent number: 7824702
    Abstract: Disclosed herein is an efficient and cost-effective system for reconstituting bone pastes comprising a first syringe containing a reconstitution fluid and second syringe containing paste components, wherein said first and second syringes are communicatingly interconnectable. Also disclosed are novel methods for producing and storing bone pastes. Alternatively, a mixing syringe is disclosed, which is useful for reconstituting a paste, inter alia, comprising a flexible midportion, whereby repeated compression of the flexible midportion results in mixing the contents of the syringe.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: November 2, 2010
    Assignee: RTI Biologics, Inc.
    Inventors: John F. Wironen, Penelope Kao, Andy Bernhardt
  • Publication number: 20090186333
    Abstract: This invention is a novel method for perfusion of a porous implant which achieves efficient interpenetration of desired factors into and removal of undesirable factors from the pores of the implant, cleaning of the implant, efficient passivation of the implant (inactivation of pathogens, microorganisms, cells, viruses and the like and reduction in antigenicity thereof), and the novel implant produced by such treatment. The process presents a system wherein the rate of pressure cycling, the fact of pressure cycling, and the amplitude of pressure cycling, results in highly cleaned tissues and other implants for implantation.
    Type: Application
    Filed: February 19, 2009
    Publication date: July 23, 2009
    Inventors: C. Randal Mills, John F. Wironen, Sean Hanstke
  • Patent number: 7513910
    Abstract: Disclosed herein is processed dermis graft for use in orthopedic surgical procedures. Specifically exemplified herein is a processed dermis graft comprising one or more bone blocks having a groove cut into the surface thereof, wherein said groove is sufficient to accommodate a fixation screw. Also disclosed is a method of processing dermis that results in a dermis derived implant suitable to replace a tendon or ligament in a recipient in need thereof. Other compositions and applications of a dermis derived implant, and methods of manufacture and use, are disclosed.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: April 7, 2009
    Assignee: RTI Biologics, Inc.
    Inventors: Dayna Buskirk, Christopher A. Seid, John F. Wironen, James M. Gross, Gina Scurti
  • Publication number: 20080124397
    Abstract: Disclosed herein is an efficient and cost-effective system for reconstituting bone pastes comprising a first syringe containing a reconstitution fluid and second syringe containing paste components, wherein said first and second syringes are communicatingly interconnectable. Also disclosed are novel methods for producing and storing bone pastes. Alternatively, a mixing syringe is disclosed, which is useful for reconstituting a paste, inter alia, comprising a flexible midportion, whereby repeated compression of the flexible midportion results in mixing the contents of the syringe.
    Type: Application
    Filed: February 5, 2008
    Publication date: May 29, 2008
    Applicant: REGENERATION TECHNOLOGIES, INC.
    Inventors: John F. Wironen, Penelope Kao, Andy Bernhardt
  • Patent number: 7153518
    Abstract: Disclosed herein are novel injectable, biocompatible compositions, preferably, comprising a combination of particulate, processed tissue and a carrier. Specifically disclosed are compositions comprising acellular, pulverized dermis combined with at least one glycosaminoglycan and/or gelatin. The subject compositions provide for improved retention of the composition at the site of implantation. Also disclosed are medical applications using the disclosed compositions, such as cosmetic enhancement or filling in of voids due to abnormalities, injuries, surgery, or aging. In addition, kits comprising at least one container of a freeze-dried, particulate tissue and at least one container of a glycosaminoglycan, or crude platelet extract and used thereof as a wound treatment/dressing, are disclosed.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: December 26, 2006
    Assignee: Regeneration Technologies, Inc.
    Inventors: John F. Wironen, Chris Seid, Rebecca Jaw, Thien Doan, Gregg Ritter, Russell S. Donda
  • Patent number: 6893462
    Abstract: Disclosed herein is processed dermis graft for use in orthopedic surgical procedures. Specifically exemplified herein is a processed dermis graft comprising one or more bone blocks having a groove cut into the surface thereof, wherein said groove is sufficient to accommodate a fixation screw. Also disclosed is a method of processing dermis that results in a dermis derived implant suitable to replace a tendon or ligament in a recipient in need thereof. Other compositions and applications of a dermis derived implant, and methods of manufacture and use, are disclosed.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: May 17, 2005
    Assignee: Regeneration Technologies, Inc.
    Inventors: Dayna Buskirk, Chris Seid, John F. Wironen, James M. Gross, Gina Scurti
  • Patent number: 6685626
    Abstract: Disclosed and claimed are compositions, devices, methods and kits that are useful in surgical procedures, specifically to induce adhesions for the purposes of stabilizing implants, closing apertures, and otherwise promoting the adhesion of implants and anatomical structures to one another. The invention pertains to a composition containing specific particulate components, wherein the particulates promote an inflammatory reaction that results in the formation of an adhesion.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: February 3, 2004
    Assignee: Regeneration Technologies, Inc.
    Inventor: John F. Wironen
  • Patent number: 6652818
    Abstract: This invention includes a novel method for safely, effectively and efficiently pooling of tissues for treatment prior to implantation into a recipient in need thereof. In one embodiment, the method includes perfusion of a porous implant which achieves efficient interpenetration of desired factors into and removal of undesirable factors from the pores of the implant, cleaning of the implant, efficient passivation of the implant (inactivation of pathogens, microorganisms, cells, viruses and the like and reduction in antigenicity thereof), and the novel implant produced by such treatment. The process presents a system wherein the rate of pressure cycling, the fact of pressure cycling, and the amplitude of pressure cycling, results in highly cleaned tissues and other implants for implantation.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: November 25, 2003
    Assignee: Regeneration Technologies, Inc.
    Inventors: C. Randal Mills, John F. Wironen, Sean Hanstke, Russell S. Donda, Jamie M. Grooms
  • Publication number: 20030180262
    Abstract: Disclosed herein is an efficient and cost-effective system for reconstituting bone pastes comprising a first syringe containing a reconstitution fluid and second syringe containing paste components, wherein said first and second syringes are communicatingly interconnectable. Also disclosed are novel methods for producing and storing bone pastes. Alternatively, a mixing syringe is disclosed, which is useful for reconstituting a paste, inter alia, comprising a flexible midportion, whereby repeated compression of the flexible midportion results in mixing the contents of the syringe.
    Type: Application
    Filed: October 11, 2001
    Publication date: September 25, 2003
    Inventors: John F. Wironen, Penelope Kao, Andy Bernhardt
  • Patent number: 6613278
    Abstract: This invention includes a novel method for safely, effectively and efficiently pooling of tissues for treatment prior to implantation into a recipient in need thereof. In one embodiment, the method includes perfusion of a porous implant which achieves efficient interpenetration of desired factors into and removal of undesirable factors from the pores of the implant, cleaning of the implant, efficient passivation of the implant (inactivation of pathogens, microorganisms, cells, viruses and the like and reduction in antigenicity thereof), and the novel implant produced by such treatment. The process presents a system wherein the rate of pressure cycling, the fact of pressure cycling, and the amplitude of pressure cycling, results in highly cleaned tissues and other implants for implantation.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: September 2, 2003
    Assignee: Regeneration Technologies, Inc.
    Inventors: C. Randal Mills, John F. Wironen, Sean Hanstke, Russell S. Donda, Jamie M. Grooms, John Bianchi
  • Publication number: 20030104026
    Abstract: Disclosed herein are novel injectable, biocompatible compositions, preferably, comprising a combination of particulate, processed tissue and a carrier. Specifically disclosed are compositions comprising acellular, pulverized dermis combined with at least one glycosaminoglycan and/or gelatin. The subject compositions provide for improved retention of the composition at the site of implantation. Also disclosed are medical applications using the disclosed compositions, such as cosmetic enhancement or filling in of voids due to abnormalities, injuries, surgery, or aging. In addition, kits comprising at least one container of a freeze-dried, particulate tissue and at least one container of a glycosaminoglycan, or crude platelet extract and used thereof as a wound treatment/dressing, are disclosed.
    Type: Application
    Filed: August 27, 2002
    Publication date: June 5, 2003
    Inventors: John F. Wironen, Christopher A. Seid, Rebecca Jaw, Thien Doan, Gregg Ritter, Russell S. Donda
  • Publication number: 20030027125
    Abstract: This invention is a novel method for perfusion of a porous implant which achieves efficient interpenetration of desired factors into and removal of undesirable factors from the pores of the implant, cleaning of the implant, efficient passivation of the implant (inactivation of pathogens, microorganisms, cells, viruses and the like and reduction in antigenicity thereof), and the novel implant produced by such treatment. The process presents a system wherein the rate of pressure cycling, the fact of pressure cycling, and the amplitude of pressure cycling, results in highly cleaned tissues and other implants for implantation.
    Type: Application
    Filed: July 10, 2002
    Publication date: February 6, 2003
    Applicant: Regeneration Technologies, Inc.
    Inventors: C. Randal Mills, John F. Wironen, Sean Hanstke