Patents by Inventor H. Chris Sarner

H. Chris Sarner 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: 8236241
    Abstract: A method of treating a biological tissue including crosslinking with glutaraldehyde; immersing the biological tissue in a first solution containing glutaraldehyde and heat in the first solution to a temperature of about 50° C. for a first period of time; immersing the biological tissue in a second solution containing a mixture of a crosslinking agent, a denaturing agent and a surfactant; and immersing the biological tissue in a sterilizing solution containing glutaraldehyde and heating the sterilizing solution to a temperature of 37.5±2.5° C. for a sterilizing period of time. The method may include a terminal sterilization step in a method for fixation of biological tissues, and bioprosthetic devices may be prepared by such fixation method. The fixation method may include the steps of A) fixing the tissue, B) treating the tissue with a mixture of i) a denaturant, ii) a surfactant and iii) a crosslinking agent, C) fabricating or forming the bioprosthesis (e.g.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: August 7, 2012
    Assignee: Edwards Lifesciences Corporation
    Inventors: Alain F. Carpentier, Sophie Carpentier, Crystal M. Cunanan, Lillian J. Quintero, Michael N. Helmus, Christine Loshbaugh, H. Chris Sarner
  • Publication number: 20070255423
    Abstract: A method for fixation of biological tissues, and bioprosthetic devices prepared by such method. The method generally comprises the steps of A) fixing the tissue, B) treating the tissue with a mixture of i) a denaturant, ii) a surfactant and iii) a crosslinking agent, C) fabricating or forming the bioprosthesis (e.g., forming the tissue and attaching any non-biological components thereto) and D) subjecting the bioprosthesis to terminal sterilization.
    Type: Application
    Filed: May 4, 2007
    Publication date: November 1, 2007
    Inventors: Alain Carpentier, Sophie Carpentier, Crystal Cunanan, Lillian Quintero, Michael Helmus, Christine Loshbaugh, H. Chris Sarner
  • Patent number: 7214344
    Abstract: A method of treating a biological tissue including contacting the biological tissue with an aqueous sterilizing solution, and maintaining the aqueous sterilizing solution at a temperature of about 50° C. for a time period of about 1 to 2 days. The method of treating a biological tissue may be utilized as a terminal sterilization step in a method for fixation of biological tissues, and bioprosthetic devices may be prepared by such fixation method. The fixation method may include the steps of A) fixing the tissue, B) treating the tissue with a mixture of i) a denaturant, ii) a surfactant and iii) a crosslinking agent, C) fabricating or forming the bioprosthesis (e.g., forming the tissue and attaching any non-biological components thereto) and D) subjecting the bioprosthesis to the terminal sterilization method. The aqueous sterilizing solution may be glutaraldehyde of about 0.625 weight percent buffered to a pH of about 7.4.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: May 8, 2007
    Assignee: Edwards Lifesciences Corporation
    Inventors: Alain F. Carpentier, Sophie Carpentier, Crystal M. Cunanan, Lillian J. Quintero, Michael N. Helmus, Christine Loshbaugh, H. Chris Sarner
  • Publication number: 20030226208
    Abstract: A method for fixation of biological tissues, and bioprosthetic devices prepared by such method. The method generally comprises the steps of A) fixing the tissue, B) treating the tissue with a mixture of i) a denaturant, ii) a surfactant and iii) a crosslinking agent, C) fabricating or forming the bioprosthesis (e.g., forming the tissue and attaching any non-biological components thereto) and D) subjecting the bioprosthesis to terminal sterilization.
    Type: Application
    Filed: January 14, 2003
    Publication date: December 11, 2003
    Inventors: Alain F. Carpentier, Sophie Carpentier, Crystal M. Cunanan, Lillian J. Quintero, Michael N. Helmus, Christine Loshbaugh, H. Chris Sarner
  • Patent number: 6547827
    Abstract: A method for fixation of biological tissues, and bioprosthetic devices prepared by such method. The method generally comprises the steps of A) fixing the tissue, B) treating the tissue with a mixture of i) a denaturant, ii) a surfactant and iii) a crosslinking agent, C) fabricating or forming the bioprosthesis (e.g., forming the tissue and attaching any non-biological components thereto) and D) subjecting the bioprosthesis to terminal sterilization.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: April 15, 2003
    Assignee: Edwards Lifesciences Corporation
    Inventors: Alain F. Carpentier, Sophie Carpentier, Crystal M. Cunanan, Lillian Quintero, Michael N. Helmus, Christine Loshbaugh, H. Chris Sarner
  • Publication number: 20030050276
    Abstract: The present invention provides methods of inactivating and removing infectious agents from tissues of use in bioprosthetic devices. The methods include the removal and blockage of binding sites on the tissues for the infectious agents. Also provided are methods for blocking a site on an infectious agent that binds to a site on the tissue.
    Type: Application
    Filed: August 15, 2001
    Publication date: March 13, 2003
    Inventors: Crystal M. Cunanan, Tan Thanh Dinh, Christine Loshbaugh, H. Chris Sarner, Michael N. Helmus
  • Publication number: 20020137024
    Abstract: The present invention provides methods of inactivating and removing infectious agents from tissues of use in bioprosthetic devices. The methods include the removal and blockage of binding sites on the tissues for the infectious agents. Also provided are methods for blocking a site on an infectious agent that binds to a site on the tissue. The invention also provides a method for preventing or reducing the calcification of a bioprosthetic tissue. The method includes removing or blocking a phospholipid calcium nucleation site from the tissue.
    Type: Application
    Filed: November 1, 2001
    Publication date: September 26, 2002
    Inventors: Crystal M. Cunanan, Tan Thanh Dinh, Christine Loshbaugh, H. Chris Sarner, Michael N. Helmus, Christine M. Cabiling
  • Publication number: 20010032024
    Abstract: A method for fixation of biological tissues, and bioprosthetic devices prepared by such method. The method generally comprises the steps of A) fixing the tissue, B) treating the tissue with a mixture of i) a denaturant, ii) a surfactant and iii) a crosslinking agent, C) fabricating or forming the bioprosthesis (e.g., forming the tissue and attaching any non-biological components thereto) and D) subjecting the bioprosthesis to terminal sterilization.
    Type: Application
    Filed: April 6, 2001
    Publication date: October 18, 2001
    Inventors: Crystal M. Cunanan, Lillian Quintero, Michael N. Helmus, Christine Loshbaugh, H. Chris Sarner
  • Patent number: 6214054
    Abstract: A method for fixation of biological tissues, and bioprosthetic devices prepared by such method. The method generally comprises the steps of A) fixing the tissue, B) treating the tissue with a mixture of i) a denaturant, ii) a surfactant and iii) a crosslinking agent, C) fabricating or forming the bioprosthesis (e.g., forming the tissue and attaching any non-biological components thereto) and D) subjecting the bioprosthesis to terminal sterilization.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: April 10, 2001
    Assignee: Edwards Lifesciences Corporation
    Inventors: Crystal M. Cunanan, Lillian Quintero, Michael N. Helmus, Christine Loshbaugh, H. Chris Sarner