Patents by Inventor Hua Qing Yin

Hua Qing Yin 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: 7137968
    Abstract: A transcutaneous device dressing and method for its use with a transcutaneous medical device, such as an intravascular catheter, which punctures the skin of a patient and which has a portion of the medical device protruding from the skin which can lead to infection. The dressing includes a top and a bottom dressing, both being formed from a flexible material and having upper and lower surfaces, with the lower surface being the skin facing surface in use. The bottom dressing has a slit formed therein extending from one edge inwardly to a termination point within the confines of the bottom dressing. An anti-microbial material is provided without the use of adhesives at the upper and lower surfaces of the bottom dressing, and at least at the lower surface of the top dressing.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: November 21, 2006
    Assignee: Nucryst Pharmaceuticals Corp.
    Inventors: Robert Edward Burrell, Hua Qing Yin
  • Patent number: 7078060
    Abstract: Solutions and aerosols of metal-containing compounds are disclosed. Methods of preparing and using the solutions and aerosols, particularly in the treatment of a subject having a condition, are also disclosed. The metal-containing material can be, for example, an antimicrobial material, an antibacterial material, an anti-inflammatory material, an anti-fungal material, an anti-viral material, an anti-cancer material, a pro-apoptosis material, and/or an MMP modulating material. In certain embodiments, the metal-containing material is an atomically disordered, silver-containing material.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: July 18, 2006
    Assignee: Nucryst Pharmaceuticals Corp.
    Inventors: Robert E. Burrell, John B. Wright, Kan Lam, Hua Qing Yin, Antony G. Naylor, Peter H. Moxham, Scott H. Gillis, Paul Schechter
  • Publication number: 20060083777
    Abstract: The invention relates to the use of one or more antimicrobial metals selected from silver, gold, platinum, and palladium but most preferably silver, preferably formed with atomic disorder, and preferably in a nanocrystalline form, for the treatment of a acne. The nanocrystalline antimicrobial metal of choice may be used in the form of a nanocrystalline coating of one or more antimicrobial metals, a nanocrystalline powder of one or more antimicrobial metals, or a solution containing dissolved species from a nanocrystalline powder or coating of one or more antimicrobial metals.
    Type: Application
    Filed: November 22, 2005
    Publication date: April 20, 2006
    Inventors: Robert Burrell, Hua Qing Yin
  • Patent number: 7008647
    Abstract: The invention relates to the use of one or more antimicrobial metals selected from silver, gold, platinum, and palladium but most preferably silver, preferably formed with atomic disorder, and preferably in a nanocrystalline form, for the treatment of a acne. The nanocrystalline antimicrobial metal of choice may be used in the form of a nanocrystalline coating of one or more antimicrobial metals, a nanocrystalline powder of one or more antimicrobial metals, or a solution containing dissolved species from a nanocrystalline powder or coating of one or more antimicrobial metals.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: March 7, 2006
    Assignee: Nucryst Pharmaceuticals Corp.
    Inventors: Robert Edward Burrell, Hua Qing Yin
  • Patent number: 6939568
    Abstract: The invention relates to the use of one or more antimicrobial metals, most preferably silver, preferably formed with atomic disorder, and preferably in a nanocrystalline form, for the treatment of inflammatory skin conditions. The nanocrystalline antimicrobial metal of choice may be used in the form of a nanocrystalline coating of one or more antimicrobial metals, a nanocrystalline powder of one or more antimicrobial metals, or a solution containing dissolved species from a nanocrystalline powder or coating of one or more antimicrobial metals.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: September 6, 2005
    Assignee: Nucryst Pharmaceuticals Corp.
    Inventors: Robert Edward Burrell, Hua Qing Yin
  • Publication number: 20040191329
    Abstract: Compositions and methods of metal-containing materials of metal-containing materials are disclosed. The metal-containing material can be, for example, an antimicrobial material, an anti-biofilm material, an antibacterial material, an anti-inflammatory material, an anti-fungal material, an anti-viral material, an anti-cancer material, a pro-apoptosis material, anti-proliferative, MMP modulating material, an atomically disordered, crystalline material, and/or a nanocrystalline material. In certain embodiments, the metal-containing material is an atomically disordered, nanocrystalline silver-containing material.
    Type: Application
    Filed: October 22, 2003
    Publication date: September 30, 2004
    Inventors: Robert E. Burrell, John B. Wright, Kan Lam, Hua Qing Yin, Antony G. Naylor, Peter H. Moxham, Scott H. Gillis, Paul Schechter, James Alexander Robert Stiles
  • Publication number: 20040157073
    Abstract: The invention provides methods and kits to form water swellable gel coatings, preferably lubricious coatings, on substrates, and coated substrates thus formed. The coatings contain one or more antimicrobial metals formed with atomic disorder, together with one or more antimicrobial metals formed with atomic disorder such that the coatings provide an antimicrobial and anti-inflammatory effect when wet. The invention also provides a method to produce metal powders by sputtering a coating onto a moving surface, and then scraping the coating with one or more scrapers to produce the metal powder. The method is particularly useful for producing large amounts of nanocrystalline antimicrobial metal powders formed with atomic disorder, useful in the water swellable gel coatings of this invention.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 12, 2004
    Applicant: Nucryst Pharmaceuticals Corp., a Alberta, Canada corporation
    Inventors: Robert Edward Burrell, Hua Qing Yin, Antony George Naylor, Peter Howard Moxham, Walter Carlton Theodore Cholowski, Leonard Salvin Bowlby, David James Field
  • Patent number: 6723350
    Abstract: The invention provides methods and kits to form water swellable gel coatings, preferably lubricious coatings, on substrates, and coated substrates thus formed. The coatings contain one or more antimicrobial metals formed with atomic disorder, together with one or more antimicrobial metals formed with atomic disorder such that the coatings provide an antimicrobial and anti-inflammatory effect when wet. The invention also provides a method to produce metal powders by sputtering a coating onto a moving surface, and then scraping the coating with one or more scrapers to produce the metal powder. The method is particularly useful for producing large amounts of nanocrystalline antimicrobial metal powders formed with atomic disorder, useful in the water swellable gel coatings of this invention.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: April 20, 2004
    Assignee: Nucryst Pharmaceuticals Corp.
    Inventors: Robert Edward Burrell, Hua Qing Yin, Antony George Naylor, Peter Howard Moxham, Walter Carlton Theodore Cholowski, Leonard Salvin Bowlby, David James Field
  • Patent number: 6719987
    Abstract: The invention provides bioabsorbable materials with antimicrobial coatings or powders which provide an effective and sustainable antimicrobial effect. Specifically, this invention provides bioabsorbable materials comprising a bioabsorbable substrate associated with one or more antimicrobial metals being in a crystalline form characterized by sufficient atomic disorder, such that the bioabsorbable material in contact with an alcohol or water based electrolyte, releases atoms, ion, molecules, or clusters of at least one antimicrobial metal at a concentration sufficient to provide an antimicrobial effect. The one or more antimicrobial metals do not interfere with the bioabsorption of the bioabsorbable material, and do not leave behind particulates larger than 2 &mgr;m, as measured 24 hours after the bioabsorbable material has disappeared.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: April 13, 2004
    Assignee: Nucryst Pharmaceuticals Corp.
    Inventors: Robert Edward Burrell, Hua Qing Yin, Stojan Djokic, Rita Johanna Mary Langford
  • Publication number: 20030203046
    Abstract: Solutions and aerosols of metal-containing compounds are disclosed. Methods of preparing and using the solutions and aerosols, particularly in the treatment of a subject having a condition, are also disclosed. The metal-containing material can be, for example, an antimicrobial material, an antibacterial material, an anti-inflammatory material, an anti-fungal material, an anti-viral material, an anti-cancer material, a pro-apoptosis material, and/or an MMP modulating material. In certain embodiments, the metal-containing material is an atomically disordered, silver-containing material.
    Type: Application
    Filed: February 12, 2003
    Publication date: October 30, 2003
    Inventors: Robert E. Burrell, Scott H. Gillis, Paul Schechter, John B. Wright, Kan Lam, Hua Qing Yin, Antony G. Naylor, Peter H. Moxham
  • Publication number: 20030194444
    Abstract: Methods of treating skin and integument conditions, particularly with metal-containing compounds, are disclosed. The metal-containing material can be, for example, an antimicrobial material, an antibacterial material, an anti-inflammatory material, an anti-fungal material, an anti-viral material, an anti-cancer material, a pro-apoptosis material, and/or an MMP modulating material. In certain embodiments, the metal-containing material is an atomically disordered, silver-containing material.
    Type: Application
    Filed: October 22, 2002
    Publication date: October 16, 2003
    Inventors: Robert E. Burrell, Scott H. Gillis, Paul Schechter, John B. Wright, Kan Lam, Hua Qing Yin
  • Publication number: 20030180379
    Abstract: Solutions and aerosols of metal-containing compounds are disclosed. Methods of preparing and using the solutions and aerosols, particularly in the treatment of a subject having a condition, are also disclosed. The metal-containing material can be, for example, an antimicrobial material, an antibacterial material, an anti-inflammatory material, an anti-fungal material, an anti-viral material, an anti-cancer material, a pro-apoptosis material, and/or an MMP modulating material. In certain embodiments, the metal-containing material is an atomically disordered, silver-containing material.
    Type: Application
    Filed: October 22, 2002
    Publication date: September 25, 2003
    Inventors: Robert E. Burrell, Scott H. Gillis, Paul Schechter, John B. Wright, Kan Lam, Hua Qing Yin, Antony G. Naylor, Peter H. Moxham
  • Publication number: 20030170314
    Abstract: Compositions of metal-containing compounds are disclosed. Methods of preparing and using the compositions, particularly in the treatment of a subject having a condition, are also disclosed. The metal-containing material can be, for example, an antimicrobial material, an antibacterial material, an anti-inflammatory material, an anti-fungal material, an anti-viral material, an anti-cancer material, a pro-apoptosis material, and/or an MMP modulating material. In certain embodiments, the metal-containing material is an atomically disordered, silver-containing material.
    Type: Application
    Filed: October 22, 2002
    Publication date: September 11, 2003
    Inventors: Robert E. Burrell, Scott H. Gillis, Paul Schechter, John B. Wright, Kan Lam, Hua Qing Yin, Antony G. Naylor, Peter H. Moxham
  • Publication number: 20030054046
    Abstract: The invention relates to the use of one or more antimicrobial metals, most preferably silver, preferably formed with atomic disorder, and preferably in a nanocrystalline form, for the treatment of inflammatory skin conditions. The nanocrystalline antimicrobial metal of choice may be used in the form of a nanocrystalline coating of one or more antimicrobial metals, a nanocrystalline powder of one or more antimicrobial metals, or a solution containing dissolved species from a nanocrystalline powder or coating of one or more antimicrobial metals.
    Type: Application
    Filed: April 23, 2002
    Publication date: March 20, 2003
    Inventors: Robert Edward Burrell, Hua Qing Yin
  • Publication number: 20020192298
    Abstract: The invention relates to the use of one or more antimicrobial metals selected from silver, gold, platinum, and palladium but most preferably silver, preferably formed with atomic disorder, and preferably in a nanocrystalline form, for the treatment of a acne. The nanocrystalline antimicrobial metal of choice may be used in the form of a nanocrystalline coating of one or more antimicrobial metals, a nanocrystalline powder of one or more antimicrobial metals, or a solution containing dissolved species from a nanocrystalline powder or coating of one or more antimicrobial metals.
    Type: Application
    Filed: April 23, 2001
    Publication date: December 19, 2002
    Inventors: Robert Edward Burrell, Hua Qing Yin
  • Publication number: 20020182265
    Abstract: The invention provides methods and kits to form water swellable gel coatings, preferably lubricious coatings, on substrates, and coated substrates thus formed. The coatings contain one or more antimicrobial metals formed with atomic disorder, together with one or more antimicrobial metals formed with atomic disorder such that the coatings provide an antimicrobial and anti-inflammatory effect when wet. The invention also provides a method to produce metal powders by sputtering a coating onto a moving surface, and then scraping the coating with one or more scrapers to produce the metal powder. The method is particularly useful for producing large amounts of nanocrystalline antimicrobial metal powders formed with atomic disorder, useful in the water swellable gel coatings of this invention.
    Type: Application
    Filed: April 23, 2002
    Publication date: December 5, 2002
    Inventors: Robert Edward Burrell, Hua Qing Yin, Antony George Naylor, Peter Howard Moxham, Walter Carlton Theodore Cholowski, Leonard Salvin Bowlby, David James Field
  • Publication number: 20010055622
    Abstract: The invention provides bioabsorbable materials with antimicrobial coatings or powders which provide an effective and sustainable antimicrobial effect. Specifically, this invention provides bioabsorbable materials comprising a bioabsorbable substrate associated with one or more antimicrobial metals being in a crystalline form characterized by sufficient atomic disorder, such that the bioabsorbable material in contact with an alcohol or water based electrolyte, releases atoms, ion, molecules, or clusters of at least one antimicrobial metal at a concentration sufficient to provide an antimicrobial effect. The one or more antimicrobial metals do not interfere with the bioabsorption of the bioabsorbable material, and do not leave behind particulates larger than 2 &mgr;m, as measured 24 hours after. The bioabsorbable material has disappeared.
    Type: Application
    Filed: April 16, 2001
    Publication date: December 27, 2001
    Inventors: Robert Edward Burrell, Hua Qing Yin, Stojan Djokic, Rita Johanna Mary Langford