Patents by Inventor Barbara Chan

Barbara Chan 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).

  • Publication number: 20130158342
    Abstract: Photochemical tissue boding methods for bonding neural tissues include the application of a photosensitizer to a tissue and/or tissue graft, followed by irradiation with electromagnetic energy to produce a tissue seal. The methods are useful for tissue adhesion, such as in wound closure, tissue grafting, skin grafting, musculoskeletal tissue repair, ligament or tendon repair, neural repair, blood vessel repair and corneal repair.
    Type: Application
    Filed: July 6, 2012
    Publication date: June 20, 2013
    Applicant: The General Hospital Corporation
    Inventors: Barbara Chan, Timothy Shane Johnson, Irene E. Kochevar, Mark Randolph, Robert W. Redmond, Jonathan M. Winograd
  • Patent number: 8215314
    Abstract: Photochemical tissue boding methods for bonding neural tissues include the application of a photosensitizer to a tissue and/or tissue graft, followed by irradiation with electromagnetic energy to produce a tissue seal. The methods are useful for tissue adhesion, such as in wound closure, tissue grafting, skin grafting, musculoskeletal tissue repair, ligament or tendon repair, neural repair, blood vessel repair and corneal repair.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: July 10, 2012
    Assignee: The General Hospital Corporation
    Inventors: Barbara Chan, Timothy Shane Johnson, Irene E. Kochevar, Mark Randolph, Robert W. Redmond, Jonathan M. Winograd
  • Publication number: 20080031858
    Abstract: A method has been developed to produce stable cell-matrix microspheres with up to 100% encapsulation efficiency and high cell viability, using matrix or biomaterial systems with poor shape and mechanical stability for applications including cell therapeutics via microinjection or surgical implantation, 3D culture for in vitro expansion without repeated cell splitting using enzymatic digestion or mechanical dissociation and for enhanced production of therapeutic biomolecules, and in vitro modeling for morphogenesis studies. The modified droplet generation method is simple and scalable and enables the production of cell-matrix microspheres when the matrix or biomaterial system used has low concentration, with slow phase transition, with poor shape and mechanical stability.
    Type: Application
    Filed: May 18, 2007
    Publication date: February 7, 2008
    Inventors: Barbara Chan, Godfrey Chan, Hoi Wong, Pik Cheung, Song-Eng Cheah, Danny Chan
  • Publication number: 20060099268
    Abstract: A method for producing collagen-based scaffolds with improved characteristics, which broadens the usage of collagen in tissue engineering and the products so produced are described. The method comprises reconstitution of three-dimensional collagen matrices from collagen monomer solution and crosslinking the matrix with a light source in the presence of a photosensitizing reagent. The crosslinked products can be in any shape and form and used in the dry or wet state, for applications including but not limited to tissue engineering and controlled drug delivery.
    Type: Application
    Filed: September 14, 2005
    Publication date: May 11, 2006
    Inventors: Barbara Chan, Kwok So
  • Publication number: 20050038471
    Abstract: Photochemical tissue boding methods for bonding neural tissues include the application of a photosensitizer to a tissue and/or tissue graft, followed by irradiation with electromagnetic energy to produce a tissue seal. The methods are useful for tissue adhesion, such as in wound closure, tissue grafting, skin grafting, musculoskeletal tissue repair, ligament or tendon repair, neural repair, blood vessel repair and corneal repair.
    Type: Application
    Filed: December 9, 2003
    Publication date: February 17, 2005
    Inventors: Barbara Chan, Timothy Johnson, Irene Kochevar, Mark Randolph, Robert Redmond, Jonathan Winograd
  • Publication number: 20020006394
    Abstract: Photochemical tissue bonding methods include the application of a photosensitizer to a tissue, e.g., cornea, followed by irradiation with electromagnetic energy to produce a tissue seal. The methods are useful for wound repair, or other tissue repair.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 17, 2002
    Inventors: Robert W. Redmond, Barbara Chan