Patents by Inventor Hsing-Wen Sung

Hsing-Wen Sung 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: 20050171616
    Abstract: The invention discloses a method of using acellular bovine pericardia fixed with genipin as a surgical-repair material to fix an abdominal wall defect.
    Type: Application
    Filed: February 8, 2005
    Publication date: August 4, 2005
    Inventors: Hsing-Wen Sung, Po-Hong Lai, Huang-Chien Liang, Hosheng Tu
  • Publication number: 20050163818
    Abstract: A method for treating a target tissue of a patient comprising, in combination, mixing a drug with a solidifiable biological material, chemically treating the drug with the biological material with a crosslinking agent, loading the solidifiable drug-containing biological material onto a medical device, solidifying the drug-containing biological material; and delivering the medical device to the target tissue for treating the tissue.
    Type: Application
    Filed: June 30, 2003
    Publication date: July 28, 2005
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Hsiang-Fa Liang, Hosheng Tu
  • Publication number: 20050163821
    Abstract: A biodegradable stent comprising a luminal surface portion with a second degree of crosslink, an outer surface portion with a first degree of crosslink, and a body between the luminal and outer surface portions, wherein the body comprises a crosslinked material characterized by the first degree of crosslink not less than the second degree of crosslink.
    Type: Application
    Filed: February 10, 2005
    Publication date: July 28, 2005
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Hosheng Tu
  • Publication number: 20050124560
    Abstract: A method for promoting angiogenesis in a patient comprising providing crosslinkable biological solution to the target tissue, wherein the crosslinkable biological solution is loaded with at least one angiogenic agent. In one embodiment, the at least one angiogenic agent is a non-protein factor selected from a group consisting of ginsenoside Rg1, ginsenoside Re, combination thereof and the like. In another embodiment, the crosslinkable biological solution of the present invention is broadly defined in a form or phase of solution, paste, gel, suspension, colloid or plasma that may be solidifiable thereafter.
    Type: Application
    Filed: April 19, 2004
    Publication date: June 9, 2005
    Inventors: Hsing-Wen Sung, Huang-Chien Liang, Hosheng Tu
  • Publication number: 20050123582
    Abstract: A method for treating vulnerable plaques of a patient, comprising: providing a biodegradable stent comprising a first supporting zone made of a first biodegradable material, wherein the supporting zone comprises at least a portion of continuous circumference of the stent; and a second therapeutic zone made of a second biodegradable material, wherein the therapeutic zone comprises at least one bioactive agent; delivering the biodegradable stent to the vulnerable plaques; orienting the therapeutic zone at about the luminal surface of the vulnerable plaque; and releasing the at least one bioactive agent for treating the vulnerable plaques.
    Type: Application
    Filed: March 26, 2004
    Publication date: June 9, 2005
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Peter Tu, Hosheng Tu
  • Publication number: 20050123583
    Abstract: Use of reuterin, a naturally occurring ?-hydroxypropinoaldehyde, in the manufacture of a biocompatible implant is disclosed, which involves crosslinking an amine-containing biological material such as chitosan, collagen, elastin, gelatin, fibrin glue, and combination thereof with reuterin.
    Type: Application
    Filed: August 24, 2004
    Publication date: June 9, 2005
    Inventors: Hsing-Wen Sung, Chun-Nan Chen, Hsiang-Fa Liang, Hosheng Tu
  • Publication number: 20050019404
    Abstract: The present invention relates to a drug-loaded biodegradable stent and methods for treating vulnerable plaques of a patient comprising a plurality of layers or zones, each layer or zone comprising its own specific biodegradation rate and its specific drug loading characteristics. In one embodiment, the layers and zones are configured and arranged, in combination, radially, circumferentially and longitudinally.
    Type: Application
    Filed: August 11, 2004
    Publication date: January 27, 2005
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Peter Tu, Hosheng Tu
  • Publication number: 20030191071
    Abstract: A method for treating tissue of a patient comprising, in combination, mixing a drug with a solidifiable biological material, chemically treating the drug with the biological material with a crosslinking agent, loading the solidifiable drug-containing biological material onto a medical device, solidifying the drug-containing biological material; and delivering the medical device to a target tissue for treating the tissue.
    Type: Application
    Filed: August 2, 2002
    Publication date: October 9, 2003
    Inventors: Hsing-Wen Sung, Hosheng Tu
  • Patent number: 6624138
    Abstract: A method for treating tissue of a patient comprising, in combination, mixing a drug with a solidifiable biological material, chemically treating the drug with the biological material with a crosslinking agent, loading the solidifiable drug-containing biological material onto a medical device, solidifying the drug-containing biological material; and delivering the medical device to a target tissue for treating the tissue.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: September 23, 2003
    Assignee: GP Medical
    Inventors: Hsing-Wen Sung, Hosheng Tu
  • Patent number: 6608040
    Abstract: Biocompatible cross-linked materials, suitable for use in implants, wound dressings, and blood substitutes, are described. The materials are prepared by cross-linking biological substances, such as collagen, chitosan, or hemoglobin, with genipin, a naturally occurring cross-linking agent. The cross-linking agent has much lower toxicity than conventionally used reagents, and the cross-linked products have good thermal and mechanical stability as well as biocompatibility.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: August 19, 2003
    Assignee: Challenge Bioproducts Co., Ltd.
    Inventors: Ching-Kuan Lin, Thomas Chau-Jen Lee, Hsing-Wen Sung
  • Patent number: 6545042
    Abstract: A method for promoting autogenous ingrowth of damaged or diseased tissue selected from a group consisting of ligaments, tendons, muscle and cartilage, the method comprising a step of surgically repairing the damaged or diseased tissue by attachment of a tissue graft, wherein the tissue graft is formed from a segment of connective tissue protein after an acellularization process, the segment being crosslinked with genipin, its analog or derivatives. The genipin-fixed acellular tissue provides a microenvironment for tissue regeneration adapted for use as a biological implant device due to its low cytotoxicity.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: April 8, 2003
    Assignee: GP Medical
    Inventors: Hsing-Wen Sung, Huang-Chien Liang
  • Publication number: 20020122816
    Abstract: A use of 3-hydroxypropinoaldehyde in the manufacture of a biocompatible implant, substitute or wound dressing is disclosed, which involves crosslinking an amine-containing biomolecule including chitosan, hemoglobin and a connective-tissue protein such as collagen or gelatin derived from a collagenous source with 3-hydroxypropinoaldehyde.
    Type: Application
    Filed: December 18, 2000
    Publication date: September 5, 2002
    Inventors: Hsing-Wen Sung, Ching-Kuan Lin
  • Publication number: 20020091445
    Abstract: A method for promoting autogenous ingrowth of damaged or diseased tissue selected from a group consisting of ligaments, tendons, muscle and cartilage, the method comprising a step of surgically repairing the damaged or diseased tissue by attachment of a tissue graft, wherein the tissue graft is formed from a segment of connective tissue protein after an acellularization process, the segment being crosslinked with genipin, its analog or derivatives. The genipin-fixed acellular tissue provides a microenvironment for tissue regeneration adapted for use as a biological implant device due to its low cytotoxicity.
    Type: Application
    Filed: February 4, 2002
    Publication date: July 11, 2002
    Inventors: Hsing-Wen Sung, Huang-Chien Liang
  • Patent number: 5769780
    Abstract: Variably compliant natural tissue valve leaflets and vascular bioprosthetics incorporating variably compliant leaflets are provided along with methods for their manufacture. The variably compliant leaflets are fixed with the leaflet base section under greater pressure than the leaflet tip section rendering them relatively stiff along the leaflet base section and more flexible at the leaflet tip section. The radially variable flexing characteristics of the valve leaflets promote even distribution of mechanical stress on the valve assembly during the cardiac cycle leading to improved hemodynamic performance while retarding the calcification of the leaflet tissue.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: June 23, 1998
    Assignee: Baxter International Inc.
    Inventors: Cary Hata, Roger Tu, Hsing-Wen Sung, Shih-Hwa Shen
  • Patent number: 5549666
    Abstract: Variably compliant natural tissue valve leaflets and vascular bioprosthetics incorporating variably compliant leaflets are provided along with methods for their manufacture. The variably compliant leaflets are fixed with the leaflet base section under greater pressure than the leaflet tip section rendering them relatively stiff along the leaflet base section and more flexible at the leaflet tip section. The radially variable flexing characteristics of the valve leaflets promote even distribution of mechanical stress on the valve assembly during the cardiac cycle leading to improved hemodynamic performance while retarding the calcification of the leaflet tissue.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: August 27, 1996
    Assignee: Baxter International Inc.
    Inventors: Cary Hata, Roger Tu, Hsing-Wen Sung, Shih-Hwa Shen