Patents by Inventor Jianguo Jack Zhou

Jianguo Jack Zhou 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: 10149753
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful in rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: December 11, 2018
    Assignee: Ethicon, Inc.
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, Jianguo Jack Zhou, James A. Matrunich
  • Publication number: 20170079777
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful in rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, Jianguo Jack Zhou, James A. Matrunich
  • Publication number: 20170079776
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful to rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, Jianguo Jack Zhou, James A. Matrunich
  • Publication number: 20170079775
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful in rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, Jianguo Jack Zhou, James A. Matrunich
  • Patent number: 9510940
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful in rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: December 6, 2016
    Assignee: Ethicon, Inc.
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, James A. Matrunich, Jianguo Jack Zhou
  • Patent number: 9238094
    Abstract: A bimodal bioabsorbable polymer composition. The composition includes a first amount of a bioabsorbable polymer polymerized so as to have a first molecular weight distribution; a second amount of said bioabsorbable polymer polymerized so as to have a second molecular weight distribution having a weight average molecular weight between about 10,000 to about 50,000 Daltons, the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; wherein a substantially homogeneous blend of said first and second amounts of said bioabsorbable polymer is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent. Also disclosed are a medical device, a method of making a medical device and a method of melt blowing a semi-crystalline polymer blend.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 19, 2016
    Assignee: Ethicon, Inc.
    Inventors: Sasa Andjelic, Benjamin D. Fitz, Jianguo Jack Zhou
  • Publication number: 20130006349
    Abstract: Compositions and methods of using tissue engineered blood vessels to repair and regenerate blood vessels of patients with vascular disease are disclosed.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Inventors: Iksoo Chun, Ziwei Wang, Kevin Cooper, Dennis Jamiolkowski, Modesto Erneta, Sasa Andjelic, Jianguo Jack Zhou
  • Publication number: 20120302528
    Abstract: A bimodal bioabsorbable polymer composition. The composition includes a first amount of a bioabsorbable polymer polymerized so as to have a first molecular weight distribution; a second amount of said bioabsorbable polymer polymerized so as to have a second molecular weight distribution having a weight average molecular weight between about 10,000 to about 50,000 Daltons, the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; wherein a substantially homogeneous blend of said first and second amounts of said bioabsorbable polymer is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent. Also disclosed are a medical device, a method of making a medical device and a method of melt blowing a semi-crystalline polymer blend.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 29, 2012
    Applicant: ETHICON, INC.
    Inventors: Sasa ANDJELIC, Benjamin D. FITZ, Jianguo Jack ZHOU
  • Patent number: 8278409
    Abstract: Copolymers exhibiting the following combinations of properties, including without limitation, ?-caprolactone in an amount ranging from about 12 to about 70 mole percent, glycolide in an amount ranging from about 30 to about 88 mole percent, crystallinity ranging from about 10 to about 50% as measured by WAXD or about 10 to about 50 J/g as measured by DSC, and an inherent viscosity ranging from about 0.5 to about 1.45 dL/g as measured in a 0.1 g/dl solution of HFIP at 25° C.; a method for melt blowing such copolymers and nonwoven constructs produced therefrom are described herein.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: October 2, 2012
    Assignee: Ethicon, Inc.
    Inventors: Modesto Erneta, Dennis D. Jamiolkowski, Jianguo Jack Zhou, Sasa Andjelic
  • Publication number: 20120215307
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful in rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 23, 2012
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, James A. Matrunich, Jianguo Jack Zhou
  • Patent number: 8236904
    Abstract: A bimodal bioabsorbable polymer composition. The composition includes a first amount of a bioabsorbable polymer polymerized so as to have a first molecular weight distribution; a second amount of said bioabsorbable polymer polymerized so as to have a second molecular weight distribution having a weight average molecular weight between about 10,000 to about 50,000 Daltons, the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; wherein a substantially homogeneous blend of said first and second amounts of said bioabsorbable polymer is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent. Also disclosed are a medical device, a method of making a medical device and a method of melt blowing a semi-crystalline polymer blend.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: August 7, 2012
    Assignee: Ethicon, Inc.
    Inventors: Sasa Andjelic, Benjamin D. Fitz, Jianguo Jack Zhou
  • Publication number: 20090264040
    Abstract: Copolymers exhibiting the following combinations of properties, including without limitation, ?-caprolactone in an amount ranging from about 12 to about 70 mole percent, glycolide in an amount ranging from about 30 to about 88 mole percent, crystallinity ranging from about 10 to about 50% as measured by WAXD or about 10 to about 50 J/g as measured by DSC, and an inherent viscosity ranging from about 0.5 to about 1.45 dL/g as measured in a 0.1 g/dl solution of HFIP at 25° C.; a method for melt blowing such copolymers and nonwoven constructs produced therefrom are described herein.
    Type: Application
    Filed: April 22, 2008
    Publication date: October 22, 2009
    Applicant: ETHICON, INC.
    Inventors: Modesto Erneta, Dennis D. JAMIOLKOWSKI, Jianguo Jack ZHOU, Sasa ANDJELIC
  • Publication number: 20090118241
    Abstract: A bimodal bioabsorbable polymer composition. The composition includes a first amount of a bioabsorbable polymer polymerized so as to have a first molecular weight distribution; a second amount of said bioabsorbable polymer polymerized so as to have a second molecular weight distribution having a weight average molecular weight between about 10,000 to about 50,000 Daltons, the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; wherein a substantially homogeneous blend of said first and second amounts of said bioabsorbable polymer is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent. Also disclosed are a medical device, a method of making a medical device and a method of melt blowing a semi-crystalline polymer blend.
    Type: Application
    Filed: April 22, 2008
    Publication date: May 7, 2009
    Applicant: ETHICON, INC.
    Inventors: Sasa ANDJELIC, Benjamin D. FITZ, Jianguo Jack ZHOU
  • Publication number: 20090104276
    Abstract: A semi-crystalline, absorbable copolyester composition comprising the reaction product of a polycondensation polyester and at least one lactone, wherein the polycondensation polyester comprises the reaction product of diglycolic acid and/or a derivative thereof and diethylene glycol; and the copolyester comprises about 30 to 60% by weight of the polycondensation polyester based on the total weight of the copolyester. Also medical devices such as absorbable sutures comprising such copolyesters and absorbable microspheres comprising such copolyesters and methods of making of such absorbable microspheres. Additionally, a method of melt blowing an absorbable copolyester composition and a nonwoven construct are disclosed.
    Type: Application
    Filed: April 22, 2008
    Publication date: April 23, 2009
    Applicant: ETHICON, INC.
    Inventors: Sasa ANDJELIC, Jianguo Jack ZHOU, Modesto ERNETA, Michel GENSINI