Patents by Inventor Marina N. Vyrzhikovskaya

Marina N. Vyrzhikovskaya 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).

  • Surgical wound retractor
    Patent number: 4667657
    Abstract: A surgical wound retractor including two diverging branches made up of a stationary part and a movable working part hinged thereto. The working parts of both branches have one common guide which embraces them and is rigidly secured on central rods installed on the stationary parts of the branches, while a movable rod disposed between the stationary parts of the branches has one end connected to the diverging device and the other end to the drive of the diverging device.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: May 26, 1987
    Assignee: Institut Blagoveschensky Gosudarstvenny Meditsinsky
    Inventors: Yaroslav P. Kulik, Ivan I. Shmyrin, Rustam I. Utyamyshev, Marina N. Vyrzhikovskaya, Boris A. Smirnov
  • Prosthetic valve holder
    Patent number: 4655218
    Abstract: A holder of a valve prosthesis implantable in a patient's circulatory system, including arms which have handles at one of their ends, and three or more working jaws provided at the end thereof for a valve prosthesis to secure thereon. The ends of all the working jaws form a circle when brought apart.
    Type: Grant
    Filed: October 10, 1985
    Date of Patent: April 7, 1987
    Assignee: Blagoveschensky Gosudarstuvenny Meditsinsky Institut
    Inventors: Yaroslav P. Kulik, Ivan I. Shmyrin, Rustam I. Utyamyshev, Marina N. Vyrzhikovskaya, Boris A. Smirnov
  • Aortic cannula
    Patent number: 4643712
    Abstract: An aortic cannula, including a head which has a front end adapted for being inserted into the aorta, and a base communicating with a blood supply tube; the head is shaped as an oblate cone that flares out from the front end which is an ellipse in cross-section, towards the base which is a circle in cross-section, while the tube is provided with a plurality of through holes or perforations located in an immediate vicinity of the place where it is joined with the base, and has a slidable sleeve adapted to operatively cover the perforations.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: February 17, 1987
    Assignee: Blagoveschensky Gosudarstvenny Meditsinsky Institut
    Inventors: Yaroslav P. Kulik, Ivan I. Shmyrin, Rustam I. Utyamyshev, Marina N. Vyrzhikovskaya