Patents by Inventor Li Ou

Li Ou 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: 20200172740
    Abstract: Novel, lubricious antimicrobial coatings for medical devices are disclosed. The coatings provide improved lubricity and durability and are readily applied in coating processes at low temperatures that do not deform the device and preserves the antimicrobial effectiveness of the antimicrobial agent. The present invention is also directed to a novel platinum catalyst for use in such coatings. The catalyst provides for rapid curing, while inhibiting cross-linking at ambient temperatures, thereby improving the production pot life of the coatings.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 4, 2020
    Applicant: Ethicon, Inc.
    Inventors: Duan Li Ou, Frank Richard Cichocki
  • Publication number: 20200171209
    Abstract: The present disclosure provides a coating apparatus and method for applying a coating of a therapeutic agent, comprising an openable and sealable device compartment, a therapeutic agent positioned in communication with the device compartment, a thermal source for vaporizing the therapeutic agent, and a vacuum source in fluid communication with the device compartment.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 4, 2020
    Applicant: Ethicon, Inc.
    Inventors: Frank Richard Cichocki, Duan Li Ou
  • Publication number: 20200171528
    Abstract: The present disclosure provides a coating applicator operable to apply a coating of a therapeutic agent upon an object comprising an openable and sealable device compartment, a therapeutic agent positioned in communication with the device compartment, an atomizer operable to atomize the therapeutic agent, and a source of vacuum in communication with the device compartment. The coating applicator may further comprise a drier, and the drier may comprise an arrangement to operate the source of vacuum for a time sufficient to promote drying of applied therapeutic agent. Deposition of the atomized therapeutic agent may be promoted by contacting the atomized therapeutic agent while the object is in a chilled condition and by contacting the object with atomized therapeutic agent while the atomized therapeutic agent is in a heated condition. Related methods are also disclosed.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 4, 2020
    Applicant: Ethicon, Inc.
    Inventors: Frank Richard Cichocki, Duan Li Ou
  • Publication number: 20200171198
    Abstract: Novel, lubricious coatings for medical devices are disclosed. The coatings provide improved lubricity and durability and are readily applied in coating processes a low temperatures that do not deform the device. The present invention is also directed to a novel platinum catalyst for use in such coatings. The catalyst provides for rapid curing, while inhibiting cross-linking at ambient temperatures, thereby improving the production pot life of the coatings.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 4, 2020
    Applicant: Ethicon, Inc.
    Inventors: Duan Li Ou, Christophe Vailhe, Frank Richard Cichocki
  • Publication number: 20200171532
    Abstract: Novel apparatus and methods for coating surgical needles in batch processes are disclosed.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 4, 2020
    Inventors: Alexander M. Cannara, Frank Richard Cichocki, JR., Duan Li Ou
  • Publication number: 20200146810
    Abstract: Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Duan Li OU, Leo B. KRIKSUNOV
  • Publication number: 20200148832
    Abstract: Provided are rapidly cross-linkable silicone compositions, systems, kits, and methods for filling implanted medical devices in situ, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; and a silicone cross-linker, where the rapidly cross-linkable silicone composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Duan Li OU, Leo B. KRIKSUNOV, Lamar KIRCHHEVEL, Clifford DWYER
  • Patent number: 10589313
    Abstract: Novel apparatus and methods for coating surgical needles in batch processes are disclosed. The apparatus and methods are particularly useful for applying uniform silicone lubricious coatings to surgical needles in bulk quantities using a novel separation and spray coating system and method.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: March 17, 2020
    Assignee: Ethicon, Inc.
    Inventors: Alexander M. Cannara, Frank Richard Cichocki, Jr., Duan Li Ou
  • Publication number: 20200048311
    Abstract: Embodiments of a recombinant human Parainfluenza Virus (hPIV) F ectodomain trimer stabilized in a prefusion conformation are provided. Also disclosed are nucleic acids encoding the hPIV F ectodomain trimer and methods of producing the hPIV F ectodomain trimer. Methods for inducing an immune response in a subject are also disclosed. In some embodiments, the method can be a method for treating or inhibiting a hPIV infection in a subject by administering a effective amount of the recombinant hPIV F ectodomain trimer to the subject.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 13, 2020
    Applicants: The United States of America, as represented by the Secretary, Dept. of Health and Human Services, Institute for Research in Biomedicine
    Inventors: Baoshan Zhang, Guillaume Stewart-Jones, Tongqing Zhou, John Mascola, Kai Xu, Yongping Yang, Paul Thomas, Gwo-Yu Chuang, Li Ou, Peter Kwong, Yaroslav Tsybovsky, Wing-Pui Kong, Aliaksandr Druz, Davide Corti, Antonio Lanzavecchia
  • Publication number: 20200046873
    Abstract: A method of reducing surgical site infection (SSI), using a coated medical device having a tissue penetrating surface and an abradable coating on the medical device comprising at least one antimicrobial agent in the coating.
    Type: Application
    Filed: August 13, 2018
    Publication date: February 13, 2020
    Inventors: Duan Li OU, Robert J. TANNHAUSER, Leo B. KRIKSUNOV
  • Patent number: 10531949
    Abstract: Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: January 14, 2020
    Assignee: ETHICON, INC.
    Inventors: Duan Li Ou, Leo B. Kriksunov
  • Patent number: 10533074
    Abstract: Provided are rapidly cross-linkable silicone compositions, systems, kits, and methods for filling implanted medical devices in situ, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; and a silicone cross-linker, where the rapidly cross-linkable silicone composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: January 14, 2020
    Assignee: ETHICON, INC.
    Inventors: Duan Li Ou, Leo B. Kriksunov, Lamar Kirchhevel, Clifford Dwyer
  • Patent number: 10465094
    Abstract: A silicone coating process that improves the durability of silicone coatings on the surfaces of surgical needles and other medical devices. The silicone coated surgical needles or medical devices produced by this process have both superior lubricity and durability for ease of repeated and successive passes through tissue. The coating compositions used in the novel process contain an excess amount of polymethylhydrosiloxane cross-linker. After curing, the process utilizes gamma radiation to treat the lubricious coatings. The coatings have improved durability and performance. The penetration performance of needles coated by this novel method remains constant and flat over at least one hundred repeat passes through tissue or tissue simulation media. This provides a consistent or flat tactile response from the needles to the hand of the surgeon during a lengthy closure process, rather than an unpredictably increasing force profile.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: November 5, 2019
    Assignee: Ethicon, Inc.
    Inventor: Duan Li Ou
  • Patent number: 10441947
    Abstract: Novel, lubricious coatings for medical devices are disclosed. The coatings provide improved lubricity and durability, and are readily applied in coating processes. The present invention is also directed to a novel platinum catalyst for use in such coatings. The catalyst provides for rapid curing, while inhibiting cross-linking at ambient temperatures, thereby improving the production pot life of the coatings.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: October 15, 2019
    Assignee: Ethicon, Inc.
    Inventor: Duan Li Ou
  • Publication number: 20190301024
    Abstract: A novel method of blackening surgical needles is disclosed. Surgical needles having outer surfaces are first placed into a first pretreatment bath having a novel composition. The needles are then placed into a second blackening bath having a novel composition for a sufficient period of time to effectively blacken the surfaces of the needles. The novel methods for blackening the surfaces of a stainless steel alloy surgical needle provide a chromium (VI)-free alternative to current needle manufacturing processes. Another unique feature of this novel method is its short processing time. The blackening processes of the present invention can be utilized for in-line treatment processes which can be easily incorporated into high speed needle manufacturing processes, such as strip mounted processes. In addition, the processes of the present invention are readily adaptable to batch processes. Also disclosed are novel systems for blackening surgical needles and novel blackening baths for surgical needles.
    Type: Application
    Filed: June 11, 2019
    Publication date: October 3, 2019
    Inventors: Duan Li Ou, Christophe Vailhe, Inas Alhamyery
  • Patent number: 10364501
    Abstract: A novel method of blackening surgical needles is disclosed. Surgical needles having outer surfaces are first placed into a first pretreatment bath having a novel composition. The needles are then placed into a second blackening bath having a novel composition for a sufficient period of time to effectively blacken the surfaces of the needles. The novel methods for blackening the surfaces of a stainless steel alloy surgical needle provide a chromium (VI)-free alternative to current needle manufacturing processes. Another unique feature of this novel method is its short processing time. The blackening processes of the present invention can be utilized for in-line treatment processes which can be easily incorporated into high speed needle manufacturing processes, such as strip mounted processes. In addition, the processes of the present invention are readily adaptable to batch processes. Also disclosed are novel systems for blackening surgical needles and novel blackening baths for surgical needles.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: July 30, 2019
    Assignee: Ethicon, Inc.
    Inventors: Duan Li Ou, Christophe Vailhe, Inas Alhamyery
  • Publication number: 20190112340
    Abstract: Embodiments of a recombinant Respiratory Syncytial Virus (RSV) F ectodomain trimer stabilized in a prefusion conformation are provided. Also disclosed are nucleic acids encoding the RSV F ectodomain trimer and methods of producing the RSV F ectodomain trimer. Methods for inducing an immune response in a subject are also disclosed. In some embodiments, the method can be a method for treating or preventing a RSV infection in a subject by administering a therapeutically effective amount of the recombinant RSV F ectodomain trimer to the subject.
    Type: Application
    Filed: March 29, 2017
    Publication date: April 18, 2019
    Applicant: The United States of America, as represented by the Secretary, Department of Health and Human
    Inventors: Peter Kwong, Barney Graham, John Mascola, Li Ou, Aliaksandr Druz, Man Chen, Wing-Pui Kong, Ivelin Stefanov Georgiev, Emily Rundlet, Michael Gordon Joyce, Yaroslav Tsybovsky, Paul Thomas, Marie Pancera, Mallika Sastry, Cinque Soto, Joseph Van Galen, Guillaume Stewart-Jones, Yongping Yang, Baoshan Zhang, Ulrich Baxa
  • Publication number: 20190083093
    Abstract: Systems and methods for coating surgical needles are provided.
    Type: Application
    Filed: August 2, 2018
    Publication date: March 21, 2019
    Inventors: Duan Li Ou, Frank Cichocki, Thien Nguyen
  • Publication number: 20190078003
    Abstract: The invention describes compositions that include amine-containing silsesquioxane or an amine-containing alkyltrialkoxysilane and a thermoplastic elastomer as well as methods of preparation of the compositions that are useful as self-bonding adhesives for various substrates.
    Type: Application
    Filed: July 17, 2018
    Publication date: March 14, 2019
    Inventor: Duan Li Ou
  • Publication number: 20180353990
    Abstract: Novel apparatus and methods for coating surgical needles in batch processes are disclosed.
    Type: Application
    Filed: June 13, 2017
    Publication date: December 13, 2018
    Inventors: Alexander M. Cannara, Frank Richard Cichocki, JR., Duan Li Ou