Patents by Inventor Guo Feng Xu

Guo Feng Xu 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: 8366770
    Abstract: A biological nerve guide for implantation into a human body is made by providing a natural animal tissue membrane, crosslinking and fixing the membrane, minimizing the antigens from the membrane, tanning the membrane, coupling an active layer to an inner surface of the membrane, cutting the membrane into a desired shape and size, positioning the cut membrane onto a rod-shaped mold so that the cut membrane assumes a cylindrical configuration, and attaching a spiral support to the outer surface of the cut membrane.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: February 5, 2013
    Assignee: Grandhope Biotech Co. Ltd.
    Inventor: Guo-Feng Xu
  • Patent number: 8292799
    Abstract: A prosthetic device for implantation into a human body is made by a method that includes the steps of providing a natural animal tissue that has a substrate, crosslinking and fixing the substrate, minimizing the antigens from the substrate, tanning the substrate to improve its mechanical properties, and coupling an anticoagulant to an inner surface of the substrate to form an anticoagulant surface layer.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: October 23, 2012
    Assignee: Grandhope Biotech Co., Ltd.
    Inventor: Guo-Feng Xu
  • Patent number: 8197500
    Abstract: An aneurysm clip has a biological membrane and a metal clip. The membrane is harvested from an animal, crosslinked, and then has its antigens minimized. The membrane also has an active layer coupled thereto. The metal clip has a first clip bar and a second clip bar that are attached to each in a biased manner, a first clip arm that extends perpendicularly from the second clip bar, and a second clip arm that extends perpendicularly from the first clip bar. A first end of the biological membrane is coupled to the first clip arm, and a second end of the biological membrane is coupled to the second clip arm in a manner that defines a receiving portion.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: June 12, 2012
    Assignee: Grandhope Biotech Co., Ltd.
    Inventors: Song-Tao Qi, Guo-Feng Xu
  • Publication number: 20120135924
    Abstract: A cartilage prosthesis is made according to a method that includes the steps of collecting animal material from a bovine, ovine or porcine source, the animal material being a cartilage, shaping the animal material to provide a desired shape for the cartilage implant, removing cells from the animal material, crosslinking the animal material, removing antigens from the animal material, subjecting the animal material to an alkaline treatment, coupling into the animal material active substances which are capable of adhering growth factor and stem cell, and packing the animal material in a container that contains a sterilization solution.
    Type: Application
    Filed: January 31, 2012
    Publication date: May 31, 2012
    Applicant: GRANDHOPE BIOTECH CO., LTD.
    Inventors: Guo-Feng Xu, Bin Xu
  • Publication number: 20120128785
    Abstract: A nasal bridge implant is made according to a method that includes the steps of collecting animal material from a bovine or porcine source, the animal material being either a tendon or a ligament, removing cells from the animal material, shaping the animal material to provide a desired shape for the nasal bridge implant, crosslinking the animal material, removing antigens from the animal material, subjecting the animal material to an alkaline treatment, coupling into the animal material active substances which are capable of adhering growth factor and stem cell, and packing the animal material in a container that contains a sterilization solution.
    Type: Application
    Filed: January 30, 2012
    Publication date: May 24, 2012
    Applicant: GRANDHOPE BIOTECH CO., LTD.
    Inventors: Guo-Feng Xu, Bin Xu
  • Publication number: 20120123549
    Abstract: A biological jawbone prosthesis is made according to a method that includes the steps of collecting animal material from a bovine or porcine source, the animal material being a jawbone, shaping the animal material to provide a desired shape for the jawbone implant, removing cells from the animal material, crosslinking the animal material, removing antigens from the animal material, subjecting the animal material to an alkaline treatment, coupling into the animal material active substances which are capable of adhering growth factor and stem cell, and packing the animal material in a container that contains a sterilization solution.
    Type: Application
    Filed: January 27, 2012
    Publication date: May 17, 2012
    Applicant: GRANDHOPE BIOTECH CO., LTD.
    Inventors: Guo-Feng Xu, Bin Xu
  • Publication number: 20120109293
    Abstract: An artificial cornea for implantation into a human body is made by a method that includes the steps of providing a natural animal cornea that has a substrate, crosslinking and fixing the substrate, minimizing the antigens from the substrate, and coupling an active layer to the substrate.
    Type: Application
    Filed: January 10, 2012
    Publication date: May 3, 2012
    Inventor: Guo-Feng Xu
  • Patent number: 8100970
    Abstract: A biological surgical patch made by a method that includes the steps of providing a natural animal tissue that has a substrate, crosslinking and fixing the substrate, minimizing the antigens from the substrate, tanning the substrate, and incorporating an active layer in the substrate.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: January 24, 2012
    Assignee: Grandhope Biotech Co., Ltd.
    Inventor: Guo-Feng Xu
  • Patent number: 7824447
    Abstract: A prosthesis for implantation into a human body is made by a method that includes the steps of providing a natural animal ligament or tendon that has a substrate, crosslinking and fixing the substrate, minimizing the antigens from the substrate, tanning the substrate to improve its mechanical properties, and coupling an active layer to the substrate.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: November 2, 2010
    Assignee: Grandhope Biotech Co. Ltd.
    Inventor: Guo-Feng Xu
  • Patent number: 7820871
    Abstract: A biological wound dressing is made by a method that includes the steps of providing a natural animal tissue that has a substrate, crosslinking and fixing the substrate, minimizing the antigens from the substrate, and incorporating an active layer in the substrate.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: October 26, 2010
    Assignee: Grandhope Biotech Co., Ltd.
    Inventor: Guo-Feng Xu
  • Publication number: 20100143443
    Abstract: A prosthesis for implantation into a human body is made by a method that includes the steps of providing a natural animal ligament or tendon that has a substrate, crosslinking and fixing the substrate, minimizing the antigens from the substrate, tanning the substrate to improve its mechanical properties, and coupling an active layer to the substrate.
    Type: Application
    Filed: February 3, 2010
    Publication date: June 10, 2010
    Inventor: Guo-Feng Xu
  • Patent number: 7674289
    Abstract: A prosthesis for implantation into a human body is made by a method that includes the steps of providing a natural animal ligament or tendon that has a substrate, crosslinking and fixing the substrate, minimizing the antigens from the substrate, tanning the substrate to improve its mechanical properties, and coupling an active layer to the substrate.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: March 9, 2010
    Assignee: Grandhope Biotech Co., Ltd.
    Inventor: Guo-Feng Xu
  • Publication number: 20100055148
    Abstract: A biological nerve guide for implantation into a human body is made by providing a natural animal tissue membrane, crosslinking and fixing the membrane, minimizing the antigens from the membrane, tanning the membrane, coupling an active layer to an inner surface of the membrane, cutting the membrane into a desired shape and size, positioning the cut membrane onto a rod-shaped mold so that the cut membrane assumes a cylindrical configuration, and attaching a spiral support to the outer surface of the cut membrane.
    Type: Application
    Filed: November 10, 2009
    Publication date: March 4, 2010
    Inventor: Guo-Feng Xu
  • Publication number: 20100023124
    Abstract: A nasal bridge implant is made according to a method that includes the steps of collecting animal material from a bovine or porcine source, the animal material being either a tendon or a ligament, removing cells from the animal material, shaping the animal material to provide a desired shape for the nasal bridge implant, crosslinking the animal material, removing antigens from the animal material, subjecting the animal material to an alkaline treatment, coupling into the animal material active substances which are capable of adhering growth factor and stem cell, and packing the animal material in a container that contains a sterilization solution.
    Type: Application
    Filed: September 25, 2008
    Publication date: January 28, 2010
    Inventors: Guo-Feng Xu, Bin Xu
  • Publication number: 20100021521
    Abstract: A cartilage prosthesis is made according to a method that includes the steps of collecting animal material from a bovine, ovine or porcine source, the animal material being a cartilage, shaping the animal material to provide a desired shape for the cartilage implant, removing cells from the animal material, crosslinking the animal material, removing antigens from the animal material, subjecting the animal material to an alkaline treatment, coupling into the animal material active substances which are capable of adhering growth factor and stem cell, and packing the animal material in a container that contains a sterilization solution.
    Type: Application
    Filed: January 8, 2009
    Publication date: January 28, 2010
    Inventors: Guo-Feng Xu, Bin Xu
  • Publication number: 20100023129
    Abstract: A biological jawbone prosthesis is made according to a method that includes the steps of collecting animal material from a bovine or porcine source, the animal material being a jawbone, shaping the animal material to provide a desired shape for the jawbone implant, removing cells from the animal material, crosslinking the animal material, removing antigens from the animal material, subjecting the animal material to an alkaline treatment, coupling into the animal material active substances which are capable of adhering growth factor and stem cell, and packing the animal material in a container that contains a sterilization solution.
    Type: Application
    Filed: October 24, 2008
    Publication date: January 28, 2010
    Inventors: Guo-Feng Xu, Bin Xu
  • Patent number: 7618653
    Abstract: A biological nerve guide for implantation into a human body is made by providing a natural animal tissue membrane, crosslinking and fixing the membrane, minimizing the antigens from the membrane, tanning the membrane, coupling an active layer to an inner surface of the membrane, cutting the membrane into a desired shape and size, positioning the cut membrane onto a rod-shaped mold so that the cut membrane assumes a cylindrical configuration, and attaching a spiral support to the outer surface of the cut membrane.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: November 17, 2009
    Assignee: Grandhope Biotech Co. Ltd.
    Inventor: Guo-Feng Xu
  • Publication number: 20070141166
    Abstract: A biological nerve guide for implantation into a human body is made by providing a natural animal tissue membrane, crosslinking and fixing the membrane, minimizing the antigens from the membrane, tanning the membrane, coupling an active layer to an inner surface of the membrane, cutting the membrane into a desired shape and size, positioning the cut membrane onto a rod-shaped mold so that the cut membrane assumes a cylindrical configuration, and attaching a spiral support to the outer surface of the cut membrane.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 21, 2007
    Inventor: Guo-Feng Xu
  • Publication number: 20070142908
    Abstract: An artificial cornea for implantation into a human body is made by a method that includes the steps of providing a natural animal cornea that has a substrate, crosslinking and fixing the substrate, minimizing the antigens from the substrate, and coupling an active layer to the substrate.
    Type: Application
    Filed: December 15, 2006
    Publication date: June 21, 2007
    Inventor: Guo-Feng Xu
  • Publication number: 20070142763
    Abstract: A biological wound dressing is made by a method that includes the steps of providing a natural animal tissue that has a substrate, crosslinking and fixing the substrate, minimizing the antigens from the substrate, and incorporating an active layer in the substrate.
    Type: Application
    Filed: December 15, 2006
    Publication date: June 21, 2007
    Inventor: Guo-Feng Xu