Patents by Inventor Leo J. Nolan

Leo J. Nolan 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: 6547798
    Abstract: A ring applicator for applying elastic rings to anatomical tissue during surgical procedures includes an inner member with a forceps movably disposed within a middle tubular member having a distal end configured to hold a plurality of elastic rings in an expanded state and a proximal end with a plurality of longitudinally spaced steps. The middle tubular member is movably disposed in an outer tubular member, and an adjustable stop mechanism is mounted on the proximal end of the outer tubular member to limit axial movement of the outer tubular member relative to the middle tubular member to select which rings are to be ejected. A distal handle is connected with the inner member via slots in the outer and middle tubular members, and a proximal handle is pivotally connected to the middle tubular member via a slot in the outer tubular member.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: April 15, 2003
    Inventors: InBae Yoon, Ronald J. Brinkerhoff, Kendall L. Dobler, Hal H. Katz, Ronald J. Kolata, William J. Kraimer, Leo J. Nolan, Delbert E. Lucas, Donna R. Motz
  • Patent number: 6395012
    Abstract: An apparatus and method delivers an expandable body member into a uterine cavity of a uterus through a cervical opening and deploys the expandable body member in the uterine cavity. The expandable body member in a compressed state is inserted into the uterine cavity. A fluid is provided to the uterine cavity at a pressure sufficient to inflate the uterine cavity. The expandable body member expands from the compressed state to the expanded state. After expansion of the expandable body member and inflation of the uterine cavity, the fluid pressure is relieved thereby collapsing the uterine cavity about the expandable body member in the expanded state such that an endometrial layer of the uterus and a surface of the expandable body member substantially contact each other in a facially opposing relationship maximizing contact therebetween.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: May 28, 2002
    Inventors: InBae Yoon, Ronald J. Brinkerhoff, Hal H. Katz, William J. Kraimer, Leo J. Nolan
  • Patent number: 6139489
    Abstract: A surgical device for use with a video display and for retracting, viewing, and accessing tissue is described. The surgical device comprises an elongated platform and a concave head connected to a distal end of the platform. The concave head defines a cavity that provides a working space for an end-effector of an instrument. The surgical device further comprises an image sensor attached to the inside of the concave head so that tissue within the working space may be imaged by the image sensor to provide an electrical signal for a video display. The surgical device further comprises an illumination means for illuminating tissue within and adjacent to the cavity of the concave head. A power source is provided for powering the image sensor and the illumination means. A handle is attached to the proximal end of the platform.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: October 31, 2000
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Scott D. Wampler, Leo J. Nolan, John P. Verschoor, John V. Hunt, Hal H. Katz
  • Patent number: 5776150
    Abstract: A surgical instrument including a handle, an end effector including jaws, an elongated tube connecting the handle to the end effector, a connector within the tube connecting the handle to the jaw members; and a first slot in the first jaw and a second slot in the jaw wherein the first and second slots are arranged such that only a portion of the slots overlap when the first and second jaws are closed to create a hole in the jaw which may be used for positioning a suture in the tissue. The first slot in the first jaw extends to a side of the first jaw and the second slot in the second jaw extends to a side of the second jaw creating pathways for removing the suture when the jaws are opened. The surgical instrument may also include a retractable tying pin adjacent the end effector and a knot pusher at the distal end of the end effector.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: July 7, 1998
    Assignee: Ethicon Endo Surgery, Inc.
    Inventors: Leo J. Nolan, John P. Measamer, James D. Staley, Jr., Robert F. Welch
  • Patent number: 5452837
    Abstract: An improved surgical stapler is disclosed having a tissue gripping ridge on at least one of the tissue contacting surfaces. The tissue contact surfaces are preferably displayed on both the anvil and the cartridge surfaces of the surgical stapler. The tissue gripping ridges preferably have serrated surfaces which mesh when in contact with each other to hold the tissue.The preferred embodiment of this invention describes the tissue gripping ridges along the periphery of the anvil and cartridge tissue contact surfaces. Another embodiment describes the tissue gripping ridges adjacent to the longitudinal knife slot.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: September 26, 1995
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Warren P. Williamson, IV, Leo J. Nolan