Patents by Inventor Gary W. Knight

Gary W. Knight 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: 20020177849
    Abstract: A surgical instrument useful in harvesting blood vessels such as veins and arteries. The instrument has a pair of jaws and a central cutting element displaceable distally and proximally to dissect tissue contained between the jaws. The distal ends of the jaws form a dissecting tip.
    Type: Application
    Filed: July 9, 2002
    Publication date: November 28, 2002
    Inventors: Dale R. Schulze, Gary W. Knight, Christopher J. Hess
  • Publication number: 20020173701
    Abstract: A surgical retraction and positioning device comprises a stable platform and a flexible tape attached thereto for easier retraction and manipulation of a heart during cardiac surgery. The stable platform has an elongate body having a curved handle extending into an organ contacting base. The base is formed at the distal end of the handle and is at least partially concave to conform to the contours of the outer surface of the heart. A portion of a flexible element, such as umbilical tape, is secured to the base, leaving at least one free end to enable the surgeon to wrap, or secure, the heart against the organ contacting base.
    Type: Application
    Filed: May 15, 2001
    Publication date: November 21, 2002
    Inventors: Ronald J. Kolata, Michael F. Clem, Christopher J. Hess, Gary W. Knight, Kristin L. Jambor
  • Publication number: 20020137989
    Abstract: A medical instrument for positioning an internal organ during a surgical procedure is provided. In one embodiment, the medical instrument includes a body having a tissue grasping element and at least one suspending member. The suspending member has a first end and a second end that is attached to a portion of the body. In use, the tissue grasping element penetrates a portion of the tissue on or near the body organ. Tension can then be applied to the suspending members to reposition and secure the body organ.
    Type: Application
    Filed: March 22, 2001
    Publication date: September 26, 2002
    Inventors: Michael F. Clem, Christopher J. Hess, Gary W. Knight, Kristin L. Jambor, Ronald J. Kolata
  • Patent number: 6443970
    Abstract: A surgical instrument useful in harvesting blood vessels such as veins and arteries. The instrument has a pair of jaws and a central cutting element displaceable distally and proximally to dissect tissue contained between the jaws. The distal ends of the jaws form a dissecting tip.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: September 3, 2002
    Assignee: Ethicon, Inc.
    Inventors: Dale R. Schulze, Gary W. Knight, Christopher J. Hess
  • Publication number: 20020099370
    Abstract: A surgical instrument useful in harvesting blood vessels such as veins and arteries. The instrument has a pair of jaws and a central cutting element displaceable distally and proximally to dissect tissue contained between the jaws. The distal ends of the jaws form a dissecting tip.
    Type: Application
    Filed: January 24, 2001
    Publication date: July 25, 2002
    Inventors: Dale R. Schulze, Gary W. Knight, Christopher J. Hess
  • Publication number: 20020099375
    Abstract: A surgical instrument useful in harvesting blood vessels such as veins and arteries and for manipulating and grasping tissue. The instrument has a pair of jaws and a closing tube to open and close the jaws.
    Type: Application
    Filed: September 28, 2001
    Publication date: July 25, 2002
    Inventors: Christopher J. Hess, Gary W. Knight, Michael F. Clem, Rudolph H. Nobis, Dale R. Schulze
  • Patent number: 6193652
    Abstract: In accordance with the present invention there is provided a device for stabilizing and/or manipulating moving tissue, such as a beating heart, so as to facilitate surgical procedures on such tissues. The device includes a tube having a proximal end, a distal end and a lumen extending therebetween. The tube is operatively connected to a suction source so as to draw air through the tube from the distal end to the proximal end. The device further includes at least one foot operatively connected to the distal end of the tube. The foot extends laterally from the tube. In a preferred embodiment the device includes a pair of feet which are spaced apart laterally from each other. Each foot has a proximal surface, and a distal surface for making contact with the tissue. The distal surface of each foot has an outer perimeter having a substantially spherical profile. This spherical profile helps the device make better contact with the tissue, so the tissue can be more effectively manipulated.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: February 27, 2001
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Craig B. Berky, William D. Fox, Gary W. Knight, David L. Hamann
  • Patent number: 6113535
    Abstract: In accordance with the present invention, there is provided a lifting apparatus for pivoting a surgical retractor with respect to a patient it is being used on. The lifting apparatus has a bridge for engaging at least one arm of a surgical retractor. The bridge has a distal end, a proximal end and a longitudinal axis extending therebetween. The bridge further includes a distal coupling attached to the distal end of the bridge for releaseably attaching the bridge to the surgical retractor. The lifting apparatus further comprises an elevator. The elevator is for applying an upward force to the proximal end of the bridge, so that when the apparatus is attached to a surgical retractor, the elevator pivots the retractor upward about the distal coupling. The elevator includes a bridge coupling for attaching to the proximal end of the bridge. A resilient pad is releaseably attached to the base of the lifting assembly and is positioned between the base and the chest of the patient.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: September 5, 2000
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: William D. Fox, Ronald J. Kolata, Craig B. Berky, Gary W. Knight
  • Patent number: 6013027
    Abstract: A method is described for stabilizing moving tissue within the body. The method comprises creating a first opening for primary surgical access into the body, and a second opening spaced apart from the first opening in the body. An elongated stem having a proximal end and a distal end is inserted into the second opening. A foot having an upper and a lower surface is inserted into the first opening. The lower surface of the foot is engaged with the moving tissue within the body. The distal end of the stem is releaseably attached to the foot. The proximal end of the stem may be held so as to stabilize the moving tissue within the body.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: January 11, 2000
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Jamal H. Khan, Randall K. Wolf, William D. Fox, Gary W. Knight, David L. Hamann, Craig B. Berky
  • Patent number: 6007486
    Abstract: In accordance with the present invention there is provided a device for stabilizing moving tissue, such as a beating heart, so as to facilitate surgical procedures on such tissue. The device includes a tube having a proximal end, a distal end and a lumen extending therebetween. The tube has a flexible hose extending through the lumen of the tube between its distal and proximal ends. The hose having a proximal end connected to a suction source so as to draw air through the tube from its distal end to its proximal end. The tube is made up of a plurality of segments which are detachable from one another. The device further includes at least one foot connected to the distal end of the tube. The foot extends laterally from the tube. In a preferred embodiment the device includes a pair of feet which are spaced apart laterally from each other. Each foot has a proximal surface, and a distal surface for making contact with the tissue.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: December 28, 1999
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: John V. Hunt, Craig B. Berky, William D. Fox, Gary W. Knight, David L. Hamann
  • Patent number: 5984864
    Abstract: In accordance with the present invention there is provided a device for stabilizing moving tissue, such as a beating heart, so as to facilitate surgical procedures on such tissue. The device includes a tube having a proximal end, a distal end and a lumen extending therebetween. The tube is connected to a suction source so as to draw air through the tube from the distal end to the proximal end. The device further includes at least one foot connected to the distal end of the tube. The foot extends laterally from the tube. In a preferred embodiment the device includes a pair of feet which are spaced apart laterally from each other. Each foot has a proximal surface, and a distal surface for making contact with the tissue. In one preferred embodiment the device includes a filter on said distal surface of each foot whereby particulate material is substantially prevented from entering said lumen of said tube.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: November 16, 1999
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: William D. Fox, Gary W. Knight, David L. Hamann, Craig B. Berky
  • Patent number: 5928135
    Abstract: A method for removing a vessel from a patient's body comprises the steps of identifying the vessel to be removing and providing an incision in the patient's body near the identified vessel. An optical dissector is inserted through the incision and tissue is optically dissected away from the surface of the vessel with the optical dissector. The optical dissector is then withdrawn from the body through the incision. An optical retractor is inserted into the body through the incision and is used to retract the dissected tissue away from the surface of the vessel thereby providing space between the dissected vessel and the retracted tissue. The vessel and its side branches are then dissected, ligated and transected and the vessel is then removed from the body through the incision.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: July 27, 1999
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Gary W. Knight, Julia C. Taylor, Michael F. Clem, Felmont F. Eaves, III, Alan B. Lumsden
  • Patent number: 5928138
    Abstract: A method for removing a vessel from a patient's body comprises the steps of identifying the vessel to be removing and providing an incision in the patient's body near the identified vessel. An optical dissector is inserted through the incision and tissue is optically dissected away from the surface of the vessel with the optical dissector. The optical dissector is then withdrawn from the body through the incision. An optical retractor is inserted into the body through the incision and is used to retract the dissected tissue away from the surface of the vessel thereby providing space between the dissected vessel and the retracted tissue. The vessel and its side branches are then dissected, ligated and transected and the vessel is then removed from the body through the incision.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: July 27, 1999
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Gary W. Knight, Julia C. Taylor, Michael F. Clem, Felmont F. Eaves, III, Alan B. Lumsden
  • Patent number: 5879291
    Abstract: In accordance with the present invention, there is provided a device for pivoting a surgical retractor with respect to a patient it is being used on. The device includes a bridge having distal and proximal ends wherein a distal coupling is attached to the distal end of the bridge and a proximal coupling is slidably attached to the bridge proximal to the distal coupling. The proximal and distal couplings include a means for releasably attaching itself to a surgical retractor. The device further includes a lifting assembly attached to the bridge proximal to the proximal coupling. The lifting assembly comprises a means for applying an upward force to the proximal coupling, whereby when the device is attached to a surgical retractor, the lifting assembly pivots the retractor upward about the distal coupling.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: March 9, 1999
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Ronald J. Kolata, William D. Fox, Craig B. Berky, Gary W. Knight, David L. Hamann
  • Patent number: 5865730
    Abstract: In accordance with the present invention there is provided a device for stabilizing and/or manipulating moving tissue, such as a beating heart, so as to facilitate surgical procedures on such tissues. The device includes a tube having a proximal end, a distal end and a lumen extending therebetween. The tube is operatively connected to a suction source so as to draw air through the tube from the distal end to the proximal end. The device further includes at least one foot operatively connected to the distal end of the tube. The foot extends laterally from the tube. In a preferred embodiment the device includes a pair of feet which are spaced apart laterally from each other. Each foot has a proximal surface, and a distal surface for making contact with the tissue. Each foot is attached to the tube by a ball and socket connector. The ball and socket connector is operatively connected to an actuator which can release and re-engage the ball from the socket.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: February 2, 1999
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: William D. Fox, David L. Hamann, Craig B. Berky, Gary W. Knight
  • Patent number: 5725479
    Abstract: A method for removing a vessel from a patient's body comprises the steps of identifying the vessel to be removing and providing an incision in the patient's body near the identified vessel. An optical dissector is inserted through the incision and tissue is optically dissected away from the surface of the vessel with the optical dissector. The optical dissector is then withdrawn from the body through the incision. An optical retractor is inserted into the body through the incision and is used to retract the dissected tissue away from the surface of the vessel thereby providing space between the dissected vessel and the retracted tissue. The vessel and its side branches are then dissected, ligated and transected and the vessel is then removed from the body through the incision.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: March 10, 1998
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Gary W. Knight, Julia C. Taylor, Michael F. Clem, Felmont F. Eaves, III, Alan B. Lumsden
  • Patent number: 5722934
    Abstract: A method for removing a vessel from a patient's body comprises the steps of identifying the vessel to be removing and providing an incision in the patient's body near the identified vessel. An optical dissector is inserted through the incision and tissue is optically dissected away from the surface of the vessel with the optical dissector. The optical dissector is then withdrawn from the body through the incision. An optical retractor is inserted into the body through the incision and is used to retract the dissected tissue away from the surface of the vessel thereby providing space between the dissected vessel and the retracted tissue. The vessel and its side branches are then dissected, ligated and transected and the vessel is then removed from the body through the incision.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: March 3, 1998
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Gary W. Knight, Julia C. Taylor, Michael F. Clem, Felmont F. Eaves, III, Alan B. Lumsden
  • Patent number: 5667480
    Abstract: A method for removing a vessel from a patient's body comprises the steps of identifying the vessel to be removing and providing an incision in the patient's body near the identified vessel. An optical dissector is inserted through the incision and tissue is optically dissected away from the surface of the vessel with the optical dissector. The optical dissector is then withdrawn from the body through the incision. An optical retractor is inserted into the body through the incision and is used to retract the dissected tissue away from the surface of the vessel thereby providing space between the dissected vessel and the retracted tissue. The vessel and its side branches are then dissected, ligated and transected and the vessel is then removed from the body through the incision.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: September 16, 1997
    Assignees: Ethicon Endo-Surgery, Inc., Emory University
    Inventors: Gary W. Knight, Julia C. Taylor, Michael F. Clem, Felmont F. Eaves, III, Alan B. Lumsden