Patents by Inventor Douglas N. Ladd

Douglas N. Ladd 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).

  • Publication number: 20090088665
    Abstract: A biopsy marker introduction assembly is configured for introduction through a specimen retrieval recess into a probe cutter lumen of a handheld breast biopsy handle. Advancing the cutter causes an extending deployment rod to distally translate within an introducer tube of the introduction assembly, pushing a biopsy marker out of a distal end of the probe at a surgical biopsy site. Thereby, the surgeon is able to position the probe and effect deployment of the marker even if using the other hand to position an imaging device such as an ultrasonic transceiver.
    Type: Application
    Filed: December 9, 2008
    Publication date: April 2, 2009
    Inventors: Andrew T. Beckman, Rick D. Applegate, Michael E. Boehm, William A. Garrison, Douglas N. Ladd
  • Patent number: 7465279
    Abstract: A biopsy marker introduction assembly is configured for introduction through a specimen retrieval recess into a probe cutter lumen of a handheld breast biopsy handle. Advancing the cutter causes an extending deployment rod to distally translate within an introducer tube of the introduction assembly, pushing a biopsy marker out of a distal end of the probe at a surgical biopsy site. Thereby, the surgeon is able to position the probe and effect deployment of the marker even if using the other hand to position an imaging device such as an ultrasonic transceiver.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: December 16, 2008
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Andrew T. Beckman, Rick D. Applegate, Michael E. Boehm, William A. Garrison, Douglas N. Ladd
  • Patent number: 6620111
    Abstract: In accordance with the present invention there is provided a biopsy device and method for the collection of at least one tissue sample from a surgical patient. The device includes a frame and an elongated piercing element attached to the distal end of the frame. The piercing element has a distal end, a proximal end and a lumen extending at least partially therethrough. The piercing element has a sharpened member at its distal end for piercing tissue, and a port proximal thereto which exposes the lumen. The device further includes an elongated cutter and tissue remover disposed coaxially and slidably within the lumen of the piercing element for harvesting a tissue mass disposed within the port of the piercing element and depositing the tissue mass proximal to the port for retrieval.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: September 16, 2003
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Randy R. Stephens, John A. Kretchman, Mark D. Hileman, Douglas N. Ladd
  • Publication number: 20020156395
    Abstract: In accordance with the present invention there is provided a biopsy device and method for the collection of at least one tissue sample from a surgical patient. The device includes a frame and an elongated piercing element attached to the distal end of the frame. The piercing element has distal end, a proximal end and a lumen extending at least partially therethrough. The piercing element has a sharpened member at its distal end for piercing tissue, and a port proximal thereto which exposes the lumen. The device further includes an elongated cutter and tissue remover disposed coaxially and slidably within the lumen of the piercing element for harvesting a tissue mass disposed within the port of the piercing element and depositing the tissue mass proximal to the port for retrieval.
    Type: Application
    Filed: April 20, 2001
    Publication date: October 24, 2002
    Inventors: Randy R. Stephens, John A. Kretchman, Mark D. Hileman, Douglas N. Ladd
  • Patent number: 6187019
    Abstract: In accordance with the present invention, there is provided a surgical device for attaching a first hollow organ to a second hollow organ and creating a passageway therebetween. The device includes a first member comprising a first prong for entering a wall of the first hollow organ and a second prong for entering a wall of the second hollow organ. The prongs each have a proximal end which attaches to the first member and a distal end extending therefrom. The device further includes a second member having a plow for incising at least one of the hollow organs so as to create a passageway between the hollow organs. The second member further includes a plurality of needle paths on either side of the plow for guiding a needle through the walls of the hollow organ on either side of the passageway. The device further includes a means for driving a needle, having a suture attached thereto, so as to attach the hollow organs together.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: February 13, 2001
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: David Stefanchik, David L. Hamann, John B. Flege, Jr., Douglas N. Ladd, J. Renee Lupton, James A. Craft
  • Patent number: 6015416
    Abstract: In accordance with the present invention, there is provided a surgical device for attaching a first hollow organ to a second hollow organ and creating a passageway therebetween. The device includes a first member comprising a first prong for entering a wall of the first hollow organ and a second prong for entering a wall of the second hollow organ. The prongs each have a proximal end which attaches to the first member and a distal end extending therefrom. The device further includes a second member having a plow for incising at least one of the hollow organs so as to create a passageway between the hollow organs. The second member further includes a plurality of needle paths on either side of the plow for guiding a needle through the walls of the hollow organ on either side of the passageway. The device further includes a means for driving a needle, having a suture attached thereto, so as to attach the hollow organs together.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: January 18, 2000
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: David Stefanchik, David L. Hamann, John B. Flege, Jr., Douglas N. Ladd, J. Renee Lupton, James A. Craft