Patents Assigned to Avatar Design and Development, Inc.
  • Surgical cutting tool with automatically retractable blade assembly
    Patent number: 7540875
    Abstract: Innovative disposable thoracostomy and cricothyrotomy trocar systems and new and improved methods for emergency management of upper airway obstructions and chest injuries are disclosed.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: June 2, 2009
    Assignee: AVATAR Design & Development, Inc.
    Inventor: John W. Jessen
  • Method and apparatus for placing and maintaining a percutaneous tube into a body cavity
    Patent number: 6402770
    Abstract: Innovative disposable thoracostomy and cricothyrotomy trocar systems and new and improved methods for emergency management of upper airway obstructions and chest injuries are disclosed.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: June 11, 2002
    Assignee: Avatar Design & Development, Inc.
    Inventor: John W. Jessen
  • Anastomosis stent and stent selection system
    Patent number: 5425739
    Abstract: A stent or support is disclosed for use in the connection or anastomosis of severed vessels to support and seal the anastomotic site. The stent includes substantially cylindrical sections separated by a tapered transitional region. The cylindrical sections are provided with flanges that define tapered sealing surfaces. The dimensions of the two sections are selected to correspond with the diameter of the portions of the vessel to be supported. The stent is preferably made of polyglycolic acid and the dimensions of the stent are selected to provide optimal support and sealing characteristics with a minimum of damage to the epithelial lining of the vas deferens. In three preferred applications, the stent is used in anastomosis of the severed ends of a vas deferens, a Fallopian tube, and a blood vessel. A gauge is used to measure the severed ends and, in that manner, determine the appropriate dimensions of the stent. A technique of forming porous stents, and other structures, is also disclosed.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: June 20, 1995
    Assignee: Avatar Design and Development, Inc.
    Inventor: John W. Jessen
  • Anastomosis stent and stent selection system
    Patent number: 5192289
    Abstract: A stent or support is disclosed for use in the connection or anastomosis of severed vessels to support and seal the anastomotic site. The stent includes substantially cylindrical sections separated by a tapered transitional region. The cylindrical sections are provided with flanges that define tapered sealing surfaces. The dimensions of the two sections are selected to correspond with the diameter of the portions of the vessel to be supported. The stent is preferably made of polyglycolic acid and the dimensions of the stent are selected to provide optimal support and sealing characteristics with a minimum of damage to the epithelial lining of the vas deferens. In two preferred applications, the stent is used in anastomosis of the severed ends of a vas deferens and a Fallopian tube. A gauge is used to measure the severed ends and, in that manner, determine the appropriate dimensions of the stent.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: March 9, 1993
    Assignee: Avatar Design and Development, Inc.
    Inventor: John W. Jessen