Patents by Inventor Paul Riestenberg

Paul Riestenberg 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).

  • Flexible endoscopic surgical port
    Patent number: 5830191
    Abstract: A flexible endoscopic surgical port comprises a trocar tube or cannula made partially or entirely of flexible material which can be inserted into a body wall at an intercostal location to allow the insertion and manipulation of endoscopic surgical instruments within the thoracic cavity. The surgical port includes a hollow tubular body which is inserted through an intercostal opening in the body wall extending into the thoracic cavity with an annular flange at one end of the tubular body projecting radially outward and engaging the body wall adjacent to the opening. The flange is able to flex relative to the tubular body whereby the surgical instrument inserted in the tubular body can be manipulated over a wide range of motion inside the thoracic cavity. A retainer ring can be installed at the end of the tubular body opposite to the flange to secure the surgical port in the body wall. Improved obturators are provided for installation of the flexible surgical port.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: November 3, 1998
    Assignee: Ethicon, Inc.
    Inventors: Roger L. Hildwein, Robert C. Uschold, J. D. Staley, Jr., Paul Riestenberg, Laura Gallagher, Rex Nagao
  • Obturator for justing a flexible trocar tube
    Patent number: 5562677
    Abstract: A flexible endoscopic surgical port comprises a trocar tube or cannula made partially or entirely of flexible material which can be inserted into a body wall at an intercostal location to allow the insertion and manipulation of endoscopic surgical instruments within the thoracic cavity. The surgical port includes a hollow tubular body which is inserted through an intercostal opening in the body wall extending into the thoracic cavity with an annular flange at one end of the tubular body projecting radially outward and engaging the body wall adjacent to the opening. The flange is able to flex relative to the tubular body whereby the surgical instrument inserted in the tubular body can be manipulated over a wide range of motion inside the thoracic cavity. A retainer ring can be installed at the end of the tubular body opposite to the flange to secure the surgical port in the body wall. Improved obturators are provided for installation of the flexible surgical port.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: October 8, 1996
    Assignee: Ethicon, Inc.
    Inventors: Roger L. Hildwein, Robert C. Uschold, J. D. Staley, Jr., Paul Riestenberg, Laura Gallagher, Rex Nagao
  • Flexible endoscopic surgical port
    Patent number: 5490843
    Abstract: A flexible endoscopic surgical port comprises a trocar tube or cannula made partially or entirely of flexible material which can be inserted into a body wall at an intercostal location to allow the insertion and manipulation of endoscopic surgical instruments within the thoracic cavity. The surgical port includes a hollow tubular body which is inserted through an intercostal opening in the body wall extending into the thoracic cavity with an annular flange at one end of the tubular body projecting radially outward and engaging the body wall adjacent to the opening. The flange is able to flex relative to the tubular body whereby the surgical instrument inserted in the tubular body can be manipulated over a wide range of motion inside the thoracic cavity. A retainer ring can be installed at the end of the tubular body opposite to the flange to secure the surgical port in the body wall. Improved obturators are provided for installation of the flexible surgical port.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: February 13, 1996
    Assignee: Ethicon, Inc.
    Inventors: Roger L. Hildwein, Robert C. Uschold, J. D. Staley, Jr., Paul Riestenberg, Laura Gallagher, Rex Nagao
  • Flexible encoscopic surgical port
    Patent number: 5391156
    Abstract: A flexible endoscopic surgical port comprises a trocar tube or cannula made partially or entirely of flexible material which can be inserted into a body wall at an intercostal location to allow the insertion and manipulation of endoscopic surgical instruments within the thoracic cavity. The surgical port includes a hollow tubular body which is inserted through an intercostal opening in the body wall extending into the thoracic cavity with an annular flange at one end of the tubular body projecting radially outward and engaging the body wall adjacent to the opening. The flange is able to flex relative to the tubular body whereby the surgical instrument inserted in the tubular body can be manipulated over a wide range of motion inside the thoracic cavity. A retainer ring can be installed at the end of the tubular body opposite to the flange to secure the surgical port in the body wall. Improved obturators are provided for installation of the flexible surgical port.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: February 21, 1995
    Assignee: Ethicon, Inc.
    Inventors: Roger L. Hildwein, Robert C. Uschold, J. D. Staley, Jr., Paul Riestenberg, Laura Gallagher, Rex Nagao