Patents by Inventor Wilhelm Waskonig

Wilhelm Waskonig 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).

  • Syringe
    Patent number: 5549573
    Abstract: A syringe which is suitable for both injection and aspiration includes a plunger movable within a barrel and a gasket disposed at the distal end of the plunger at a narrowed portion of the plunger between two plunger portions of greater diameter. When the plunger is moved, the gasket forms a seal between the inner wall of the barrel and one of the portions of the plunger of greater diameter.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: August 27, 1996
    Inventor: Wilhelm Waskonig
  • Needle, for example epidural needle
    Patent number: 5484423
    Abstract: The invention refers to a needle (10, 30), such as an epidural needle, whose needle body (14, 28) is structured in its outer surface, at least in sections, so that a resistance which inhibits advance is produced when penetrating through a tissue (22).
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: January 16, 1996
    Assignee: te me na Logistics
    Inventors: Wilhelm Waskonig, Jose J. R. Olive
  • Catheter unit
    Patent number: 5389079
    Abstract: The catheter unit for continuous spinal anesthesia has inner and outer tubules longitudinal adjustable relative to one another, and a catheter. The inner tubule has a closed point end with a lateral opening. The outer tubule extends along the inner tubule and has an open forward end whose rim is free of cutting edges. When the inner tubule is in position within the body, it can be retracted from the outer tubule to allow longitudinal introduction of the catheter through the outer tube and longitudinally beyond the open forward end.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: February 14, 1995
    Inventor: Wilhelm Waskonig
  • Epidural cannula
    Patent number: 5364373
    Abstract: An epidural cannula for local anesthesia having a cannula point with an adjacent lateral opening parallel to the longitudinal axis of the cannula. The cannula has a cross-sectional enlargement spaced from the point and having an area directed toward the point that forms an angle greater than 30.degree. relative to the longitudinal axis of the cannula.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: November 15, 1994
    Assignee: te me na Logistics
    Inventors: Wilhelm Waskonig, Jose J. Rodiera Olive