Patents by Inventor Renee Christopher

Renee Christopher 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).

  • Process for creating acellular viable donor soft tissue
    Patent number: 8974730
    Abstract: A process for creating acellular donor soft tissue by removing contaminants such as cells by extraction using a fluid at supercritical temperature and pressures while preserving the integrity of the soft tissue. The soft tissue is maintained in contact with the fluid in a pressure vessel at supercritical temperature and pressures for a period of time and then the pressure vessel is rapidly depressurized.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: March 10, 2015
    Assignee: Novasterilis, Inc.
    Inventors: David C. Burns, Anthony R. Eisenhut, Renee Christopher
  • PROCESS FOR CREATING ACELLULAR VIABLE DONOR SOFT TISSUE
    Publication number: 20120051970
    Abstract: A process for creating acellular donor soft tissue by removing contaminants such as cells by extraction using a fluid at supercritical temperature and pressures while preserving the integrity of the soft tissue. The soft tissue is maintained in contact with the fluid in a pressure vessel at supercritical temperature and pressures for a period of time and then the pressure vessel is rapidly depressurized.
    Type: Application
    Filed: October 6, 2011
    Publication date: March 1, 2012
    Inventors: David C. Burns, Anthony R. Eisenhut, Renee Christopher
  • Method and apparatus for cleaning of viable donor soft tissue
    Patent number: 8034288
    Abstract: A process for cleaning donor soft tissue by removing contaminants by extraction using a fluid at supercritical temperature and pressures while preserving the integrity of the tissue.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: October 11, 2011
    Assignee: Novasterilis
    Inventors: David C. Burns, Anthony R. Eisenhut, Renee Christopher, Tim W. Christensen
  • Preparation and sterilization of green state devices using a supercritical fluid sterilant
    Patent number: 7988892
    Abstract: The invention relates to a method for forming a molded article during sterilization and under high pressure utilizing a supercritical fluid as a sterilization fluid, whereby the pressurization and depressurization rates are controlled to form molded articles.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: August 2, 2011
    Assignee: Novasterilis
    Inventors: Anthony R. Eisenhut, J. Anastasia Kazenski, Renee A. Christopher
  • Combined use of an alkaline earth metal compound and a sterilizing agent to maintain osteoinduction properties of a demineralized bone matrix
    Patent number: 7771652
    Abstract: A method is disclosed that produces allografts from matrices typically containing demineralized bone matrix (DBM) powder, demineralized bone matrix gel, demineralized bone matrix paste, bone cement, cancellous bone, or cortical bone and mixtures thereof. The matrices are sterilized utilizing supercritical CO2 in the presence of a sterilizing additive and an entrainer such as an alkaline earth metal compound, preferably CaCO3. The resultant allograft materials have a reduced rate of rejection when used in allograft procedures including, bone, cartilage, tendon, and ligament grafting procedures.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: August 10, 2010
    Assignee: Novasterilis, Inc.
    Inventors: Renee A. Christopher, J. Anastasia Nichols
  • Combined use of an alkaline earth metal compound and a sterilizing agent to maintain osteoinduction properties of a demineralized bone matrix
    Publication number: 20090257914
    Abstract: A method is disclosed that produces allografts from matrices typically containing demineralized bone matrix (DBM) powder, demineralized bone matrix gel, demineralized bone matrix paste, bone cement, cancellous bone, or cortical bone and mixtures thereof. The matrices are sterilized utilizing supercritical CO2 in the presence of a sterilizing additive and an entrainer such as an alkaline earth metal compound, preferably CaCO3. The resultant allograft materials have a reduced rate of rejection when used in allograft procedures including, bone, cartilage, tendon, and ligament grafting procedures.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 15, 2009
    Inventors: Renee A. Christopher, J. Anastasia Nichols
  • Preparation and Sterilization of Green State Devices Using a Supercritical Fluid Sterilant
    Publication number: 20090134542
    Abstract: The invention relates to a method for forming a molded article during sterilization and under high pressure utilizing a supercritical fluid as a sterilization fluid, whereby the pressurization and depressurization rates are controlled to form molded articles.
    Type: Application
    Filed: November 25, 2008
    Publication date: May 28, 2009
    Inventors: Anthony R. Eisenhut, J. Anastasia Kazenski, Renee A. Christopher
  • Method and Apparatus for Cleaning of Viable Donor Soft Tissue
    Publication number: 20080166266
    Abstract: A process for cleaning donor soft tissue by removing contaminants by extraction using a fluid at supercritical temperature and pressures while preserving the integrity of the tissue.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 10, 2008
    Inventors: David C. Burns, Anthony R. Eisenhut, Renee Christopher