Patents by Inventor David Arazawa

David Arazawa 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: 11471302
    Abstract: A device for loading bone graft material into a delivery tube is provided herein. The device includes a housing defining a reservoir for receiving bone graft, a magazine at least partially disposed within the housing, and an actuation member coupled to the housing for discharging the bone graft material into the delivery tube. The magazine defines a first chamber and a second chamber and is moveable between a first position in which the first chamber is in communication with the reservoir and a second position in which the second chamber is in communication with the reservoir. The actuation member includes a plunger configured to slide into the first chamber and the second chamber to discharge bone graft material, when bone graft material is contained therein, into the delivery tube. Methods of loading bone graft material are also provided.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 18, 2022
    Assignee: Stryker European Operations Holdings LLC
    Inventors: David Arazawa, Brian Sechrist, Oliver Buchert, Amir Ali Sharifi-Mehr
  • Publication number: 20220241075
    Abstract: A bioactive filamentary structure includes a sheath coated with a mixture of synthetic bone graft particles and a polymer solution forming a scaffold structure. In forming such a structure, synthetic bone graft particles and a polymer solution are applied around a filamentary structure. A polymer is precipitated from the polymer solution such that the synthetic bone graft particles and the polymer coat the filamentary structure and the polymer is adhered to the synthetic bone graft particles to retain the graft particles.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Inventors: Sonny Sheth, David Arazawa, J. Brook Burley, Sarah Elizabeth Smith, Matthew B. Havener, James San Antonio
  • Patent number: 11331191
    Abstract: A bioactive filamentary structure includes a sheath coated with a mixture of synthetic bone graft particles and a polymer solution forming a scaffold structure. In forming such a structure, synthetic bone graft particles and a polymer solution are applied around a filamentary structure. A polymer is precipitated from the polymer solution such that the synthetic bone graft particles and the polymer coat the filamentary structure and the polymer is adhered to the synthetic bone graft particles to retain the graft particles.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: May 17, 2022
    Assignee: Howmedica Osteonics Corp.
    Inventors: Sonny Sheth, David Arazawa, J. Brook Burley, Sarah Elizabeth Smith, Matthew B. Havener, James San Antonio
  • Publication number: 20210068978
    Abstract: A device for loading bone graft material into a delivery tube is provided herein. The device includes a housing defining a reservoir for receiving bone graft, a magazine at least partially disposed within the housing, and an actuation member coupled to the housing for discharging the bone graft material into the delivery tube. The magazine defines a first chamber and a second chamber and is moveable between a first position in which the first chamber is in communication with the reservoir and a second position in which the second chamber is in communication with the reservoir. The actuation member includes a plunger configured to slide into the first chamber and the second chamber to discharge bone graft material, when bone graft material is contained therein, into the delivery tube. Methods of loading bone graft material are also provided.
    Type: Application
    Filed: November 20, 2020
    Publication date: March 11, 2021
    Inventors: David Arazawa, Brian Sechrist, Oliver Buchert, Amir Ali Sharifi-Mehr
  • Patent number: 10869770
    Abstract: A device for loading bone graft material into a delivery tube is provided herein. The device includes a housing defining a reservoir for receiving bone graft, a magazine at least partially disposed within the housing, and an actuation member coupled to the housing for discharging the bone graft material into the delivery tube. The magazine defines a first chamber and a second chamber and is moveable between a first position in which the first chamber is in communication with the reservoir and a second position in which the second chamber is in communication with the reservoir. The actuation member includes a plunger configured to slide into the first chamber and the second chamber to discharge bone graft material, when bone graft material is contained therein, into the delivery tube. Methods of loading bone graft material are also provided.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: December 22, 2020
    Assignee: Stryker European Holdings I, LLC
    Inventors: David Arazawa, Brian Sechrist, Oliver Buchert, Amir Ali Sharifi-Mehr
  • Publication number: 20200375744
    Abstract: A bioactive filamentary structure includes a sheath coated with a mixture of synthetic bone graft particles and a polymer solution forming a scaffold structure. In forming such a structure, synthetic bone graft particles and a polymer solution are applied around a filamentary structure. A polymer is precipitated from the polymer solution such that the synthetic bone graft particles and the polymer coat the filamentary structure and the polymer is adhered to the synthetic bone graft particles to retain the graft particles.
    Type: Application
    Filed: June 19, 2020
    Publication date: December 3, 2020
    Inventors: Sonny Sheth, David Arazawa, J. Brook Burley, Sarah Elizabeth Smith, Matthew B. Havener, James San Antonio
  • Patent number: 10729548
    Abstract: A bioactive filamentary structure includes a sheath coated with a mixture of synthetic bone graft particles and a polymer solution forming a scaffold structure. In forming such a structure, synthetic bone graft particles and a polymer solution are applied around a filamentary structure. A polymer is precipitated from the polymer solution such that the synthetic bone graft particles and the polymer coat the filamentary structure and the polymer is adhered to the synthetic bone graft particles to retain the graft particles.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: August 4, 2020
    Assignee: Howmedica Osteonics Corp.
    Inventors: Sonny Sheth, David Arazawa, J. Brook Burley, Sarah Elizabeth Smith, Matthew B. Havener, James San Antonio
  • Publication number: 20190175360
    Abstract: A device for loading bone graft material into a delivery tube is provided herein. The device includes a housing defining a reservoir for receiving bone graft, a magazine at least partially disposed within the housing, and an actuation member coupled to the housing for discharging the bone graft material into the delivery tube. The magazine defines a first chamber and a second chamber and is moveable between a first position in which the first chamber is in communication with the reservoir and a second position in which the second chamber is in communication with the reservoir. The actuation member includes a plunger configured to slide into the first chamber and the second chamber to discharge bone graft material, when bone graft material is contained therein, into the delivery tube. Methods of loading bone graft material are also provided.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 13, 2019
    Inventors: David Arazawa, Brian Sechrist, Oliver Buchert, Amir Ali Sharifi-Mehr
  • Publication number: 20170312080
    Abstract: A bioactive filamentary structure includes a sheath coated with a mixture of synthetic bone graft particles and a polymer solution forming a scaffold structure. In forming such a structure, synthetic bone graft particles and a polymer solution are applied around a filamentary structure. A polymer is precipitated from the polymer solution such that the synthetic bone graft particles and the polymer coat the filamentary structure and the polymer is adhered to the synthetic bone graft particles to retain the graft particles.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 2, 2017
    Inventors: Sonny Sheth, David Arazawa, J. Brook Burley, Sarah Elizabeth Smith, Matt Havener, James San Antonio