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).

  • Patent number: 7605559
    Abstract: Methods and devices are provided for rotating an end effector on a long, flexible medical device. The methods and devices utilize an actuator mechanism that is effective to rotate an end effector on the distal end of an elongate flexible shaft. The actuator mechanism is movable between a freely rotatable position and a rotationally resistant position. When the actuator mechanism is in a freely rotatable position, the actuator mechanism can be rotated to impart torque to the end effector, and thus at least a distal portion of the elongate shaft, to cause the end effector to rotate. In order to prevent the actuator mechanism from “freewheeling,” wherein the actuator mechanism freely rotates in an opposite direction upon release rather than the end effector rotating in the desired direction, the actuator mechanism can be moved to the rotationally resistant position.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: October 20, 2009
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Jeffrey David Messerly, Gary W. Knight, Barry Thomas Jamison, William Douglas Shaw, Jr.
  • Publication number: 20090088603
    Abstract: Methods and devices are provided for rotating an end effector on a long, flexible medical device. The methods and devices utilize an actuator mechanism that is effective to rotate an end effector on the distal end of an elongate flexible shaft. The actuator mechanism is movable between a freely rotatable position and a rotationally resistant position. When the actuator mechanism is in a freely rotatable position, the actuator mechanism can be rotated to impart torque to the end effector, and thus at least a distal portion of the elongate shaft, to cause the end effector to rotate. In order to prevent the actuator mechanism from “freewheeling,” wherein the actuator mechanism freely rotates in an opposite direction upon release rather than the end effector rotating in the desired direction, the actuator mechanism can be moved to the rotationally resistant position.
    Type: Application
    Filed: December 9, 2008
    Publication date: April 2, 2009
    Applicant: Ethicon Endo-Surgery, Inc.
    Inventors: Jeffrey David Messerly, Gary W. Knight, Barry Thomas Jamison, William D. Shaw, JR.
  • Patent number: 7479752
    Abstract: Methods and devices are provided for rotating an end effector on a long, flexible medical device. The methods and devices utilize an actuator mechanism that is effective to rotate an end effector on the distal end of an elongate flexible shaft. The actuator mechanism is movable between a freely rotatable position and a rotationally resistant position. When the actuator mechanism is in a freely rotatable position, the actuator mechanism can be rotated to impart torque to the end effector, and thus at least a distal portion of the elongate shaft, to cause the end effector to rotate. In order to prevent the actuator mechanism from “freewheeling,” wherein the actuator mechanism freely rotates in an opposite direction upon release rather than the end effector rotating in the desired direction, the actuator mechanism can be moved to the rotationally resistant position.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: January 20, 2009
    Assignee: Ethicon-Endo Surgery, Inc.
    Inventors: Jeffrey David Messerly, Gary W. Knight, Barry Thomas Jamison, William D. Shaw, Jr.
  • Publication number: 20080300461
    Abstract: An endoscopic surgical instrument for performing a procedure inside a patient. The instrument includes a handle assembly including a grip for holding the instrument and controls for controlling movement of the instrument. An elongate shaft having a grip end is mounted on the handle assembly. The shaft has a working end opposite the grip end. The shaft has a proximal portion adjacent the grip end and a distal portion adjacent the working end. The proximal portion has a centerline and is selectively rotatable with respect to the handle assembly. The distal portion has a centerline and is selectively articulatable relative to the proximal portion of the shaft. The instrument includes an end effector mounted on the working end of the elongate shaft. The end effector is selectively rotatable about the distal portion of the shaft.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Applicant: Ethicon Endo-Surgery, Inc.
    Inventors: William D. Shaw, Jeffrey D. Messerly, Gary W. Knight, Jessica Fox
  • Publication number: 20070296365
    Abstract: Methods and devices are provided for rotating an end effector on a long, flexible medical device. The methods and devices utilize an actuator mechanism that is effective to rotate an end effector on the distal end of an elongate flexible shaft. The actuator mechanism is movable between a freely rotatable position and a rotationally resistant position. When the actuator mechanism is in a freely rotatable position, the actuator mechanism can be rotated to impart torque to the end effector, and thus at least a distal portion of the elongate shaft, to cause the end effector to rotate. In order to prevent the actuator mechanism from “freewheeling,” wherein the actuator mechanism freely rotates in an opposite direction upon release rather than the end effector rotating in the desired direction, the actuator mechanism can be moved to the rotationally resistant position.
    Type: Application
    Filed: June 21, 2006
    Publication date: December 27, 2007
    Applicant: ETHICON ENDO-SURGERY, INC.
    Inventors: Jeffrey David Messerly, Gary W. Knight, Barry Thomas Jamison, William D. Shaw
  • Patent number: 7223239
    Abstract: A medical device for use on a bodily organ includes a concave support element that is removably attachable to the surface of the bodily organ, thereby defining an enclosed space adjacent to the bodily organ. The enclosed space is fluidly connected to a fluid management system for circulating a fluid inside of the enclosed space. The medical device also has an energy transfer element mounted to the concave support element and electrically connected to a control unit. In some embodiments, the energy transfer element transmits intense ultrasound energy in a frequency range of 1–30 megahertz, and the fluid acoustically couples the energy transfer element to the bodily organ, and the fluid also cools the energy transfer element.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: May 29, 2007
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Dale R. Schulze, Christopher J Hess, Michael F. Clem, Gary W. Knight, Kevin A. Harper, Rudolph H Nobis
  • Patent number: 7063699
    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: Grant
    Filed: September 28, 2001
    Date of Patent: June 20, 2006
    Assignee: Ethicon, Inc.
    Inventors: Christopher J. Hess, Gary W. Knight, Michael F. Clem, Rudolph H. Nobis, Dale R. Schulze
  • Patent number: 7037305
    Abstract: A medical instrument for positioning an internal organ during surgical and diagnostic procedures is provided. In one embodiment, the medical instrument includes a body having a tissue grasping element and an actuating member effective to move the tissue grasping element between an open position and a closed position. The body also includes a flexible member which has a portion secured to the body and at least one free end. In use, the tissue grasping element grasps or penetrates a portion of the tissue on or near the body organ. Tension can then be applied to the flexible member to reposition and secure the body organ.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: May 2, 2006
    Assignee: Ethicon, Inc.
    Inventors: Ronald J. Kolata, Michael F. Clem, Christopher J. Hess, Gary W. Knight, Kristin L. Jambor, David L. Hamann
  • Patent number: 6835195
    Abstract: A surgical device for applying radio frequency energy to a portion of a captured vessel is provided. The device including: a first tube having an internal lumen for passage of a viewing device therein, the first tube having a substantially transparent first window at a distal tip thereof; a second tube slidingly disposed over the first tube, the second tube having a substantially transparent second window at a distal tip thereof, the second tube further having a slot for capturing a portion of the vessel; an actuator for sliding the second tube relative to the first tube between open and closed positions, wherein in the closed position an inner surface of the second window is aligned with an outer surface of the first window and captures the portion of the vessel therebetween; and at least one electrode affixed to one of the inner or outer surfaces and facing the other of the inner or outer surfaces for applying radio frequency energy to the captured portion of the vessel.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: December 28, 2004
    Assignee: Ethicon, Inc.
    Inventors: Dale R. Schulze, Michael F. Clem, Gary W. Knight, Christopher J. Hess, Rudolph H. Nobis, Gary L. Long
  • Publication number: 20040260245
    Abstract: The present invention is a method for accessing the abdominal cavity of a patient in order to perform a medical procedure therein. In one embodiment the method includes the step of inserting a guide wire into the upper gastrointestinal tract, via a gastric opening in the gastric wall and an abdominal opening in the abdominal wall of the patient, the guide wire having a first end that extends from the mouth of the patient, and a second end that extends from the abdominal opening of the patient. The method further includes providing an access device in the form of an elongated sheath having a lumen therethrough, attaching the first end of the guide wire to the distal end of the elongated sheath, and pulling the second end of the guide wire to position the access device into the upper gastrointestinal tract, wherein the distal end of the access device extends into the abdominal cavity while the proximal end of the access device extends out of the mouth of the patient.
    Type: Application
    Filed: June 19, 2003
    Publication date: December 23, 2004
    Inventors: Michael F. Clem, Gary W. Knight, Rudolph H. Nobis, Dale R. Schulze, Christopher J. Hess, Elliott J. Fegelman
  • Publication number: 20040254608
    Abstract: The present invention provides a surgical implant which can be made of a metal that corrodes while implanted in tissue of a patient. The surgical implant has a preferential corrosion zone adapted to corrode at a different rate than the rest of the surgical implant. In one embodiment, the surgical implant is surgical staple that may be formed into a “B-shape” when deployed into tissue, although the invention also is applicable to many other kinds of staples, clips, and other metallic surgical implants. In one embodiment, the preferential corrosion zone comprises an indentation that provides a site for crevice corrosion.
    Type: Application
    Filed: June 16, 2003
    Publication date: December 16, 2004
    Inventors: Thomas W. Huitema, Gary W. Knight, Mark H. Ransick, Dale R. Schulze
  • Publication number: 20040215057
    Abstract: A portable endoscopic vessel harvesting system for use with a video display for retracting, viewing, and accessing tissue. An embodiment of the vessel harvesting system can include a first housing, an endoscope detachably mounted to the first housing, and a second housing detachably mounted to the endoscope, where the first housing configured to be disposable and the second portion configured to be reusable.
    Type: Application
    Filed: September 27, 2002
    Publication date: October 28, 2004
    Inventors: Parris S. Wellman, Dale R. Schulze, Gary W. Knight, Christopher J. Hess, Kristopher Kundra, Michael F. Clem, Rudolph H. Nobis
  • Publication number: 20040186492
    Abstract: A method and device for endoscopic harvesting of blood vessels from a patient for use in subsequent procedures. The device having a two piece headpiece. A vessel to be removed is inserted into the headpiece and the top and bottom portions of the headpiece are alternatively extended in reciprocating fashion to dissect above and below the vessel. The headpiece having electrodes for ligation of any side branch vessels which are uncovered in the dissection process.
    Type: Application
    Filed: April 1, 2004
    Publication date: September 23, 2004
    Applicant: ETHICON, INC.
    Inventors: Christopher J. Hess, Michael F. Clem, Gary W. Knight, Kristin L. Jambor, Gary L. Long
  • Patent number: 6790217
    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: July 9, 2002
    Date of Patent: September 14, 2004
    Assignee: Ethicon, Inc.
    Inventors: Dale R. Schulze, Gary W. Knight, Christopher J. Hess
  • Publication number: 20040106938
    Abstract: An endoscopic vessel harvesting device and a method of endoscopic harvesting of vessels from a patients body. The method comprises locating the vessel, and inserting the vessel harvesting device through an incision. Dissecting the vessel from the surrounding tissue, and capturing side branch vessels in a vessel capturing means. Ligating and transecting the side branch vessels using electrodes and a knife located in the vessel capturing means. Finally, ligating and transecting the vessel, and removing the vessel from the patients body. The vessel harvesting device comprises a head piece, a shaft having a lumen for receiving an endoscope, and a vessel capturing means located on the head piece for capturing the side branch vessels in the receiver.
    Type: Application
    Filed: November 24, 2003
    Publication date: June 3, 2004
    Inventors: Christopher J. Hess, Michael F. Clem, Gary W. Knight, Rudolph H. Nobis, Dale R. Schulze
  • Patent number: 6740102
    Abstract: A method and device for endoscopic harvesting of blood vessels from a patient for use in subsequent procedures. The device having a two piece headpiece. A vessel to be removed is inserted into the headpiece and the top and bottom portions of the headpiece are alternatively extended in reciprocating fashion to dissect above and below the vessel. The headpiece having electrodes for ligation of any side branch vessels which are uncovered in the dissection process.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: May 25, 2004
    Assignee: Ethicon, Inc.
    Inventors: Christopher J. Hess, Michael F. Clem, Gary W. Knight, Kristin L. Jambor, Gary L. Long
  • Publication number: 20040097921
    Abstract: An endoscopic device including a shaft having a lumen for insertion of an endoscope therethrough, a transparent headpiece defining a workspace and disposed at a distal end of the shaft, a handle disposed at a proximal end of the shaft, a plunger disposed at the distal end of the shaft and movable between a retracted and extended position, wherein in the extended position the plunger interacts with at least a portion of the headpiece to capture a vessel therebetweeen, an actuator for moving the plunger between the retracted and extended positions, and a ligator for cauterizing the vessel captured between the plunger and the portion of the headpiece.
    Type: Application
    Filed: July 2, 2003
    Publication date: May 20, 2004
    Applicant: ETHICON, INC.
    Inventors: Christopher J. Hess, Michael F. Clem, Gary W. Knight, Rudolph H. Nobis, Dale R. Schulze
  • Patent number: 6656176
    Abstract: An endoscopic vessel harvesting device and a method of endoscopic harvesting of vessels from a patients body. The method comprises locating the vessel, and inserting the vessel harvesting device through an incision. Dissecting the vessel from the surrounding tissue, and capturing side branch vessels in a vessel capturing device. Ligating and transecting the side branch vessels using electrodes and a knife located in the vessel capturing device. Finally, ligating and transecting the vessel, and removing the vessel from the patients body. The vessel harvesting device comprises a head piece, a shaft having a lumen for receiving an endoscope, and a vessel capturing device located on the head piece for capturing the side branch vessels in the receiver.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: December 2, 2003
    Assignee: Ethicon, Inc.
    Inventors: Christopher J. Hess, Michael F. Clem, Gary W. Knight, Rudolph H. Nobis, Dale R. Schulze
  • Publication number: 20030195544
    Abstract: A surgical instrument for dissecting a vessel in a patient. The surgical instrument includes a spoon retractor having a proximal end and a distal end, said spoon retractor defining a working space in the tissue of a patient, a dissecting element proximate to the spoon retractor for dissecting tissue from a vessel, and a handle for manipulating the spoon retractor near the vessel. Also provided is a method for dissecting a vessel including the steps of providing the surgical instrument for dissecting a vessel in a patient described above. Making an incision in a patient. Inserting the spoon retractor into the incision. Creating a working space in the tissue of the patient near the vessel being dissected, and manipulating the dissecting element to further dissect tissue surrounding the vessel being dissected.
    Type: Application
    Filed: May 14, 2003
    Publication date: October 16, 2003
    Applicant: ETHICON, INC.
    Inventors: Christopher J. Hess, Michael F. Clem, Gary W. Knight, Rudolph H. Nobis, Dale R. Schulze, Kristin L. Jambor
  • Publication number: 20030181890
    Abstract: The present invention is a medical device for use on a bodily organ of a patient. The medical device includes a concave support element that is removably attachable to the surface of the bodily organ, thereby defining an enclosed space adjacent to the bodily organ. The enclosed space is fluidly connected to a fluid management system for circulating a fluid inside of the enclosed space. The medical device also has an energy transfer element mounted to the concave support element and electrically connected to a control unit. In some embodiments, the energy transfer element transmits intense ultrasound energy in a frequency range of 1-30 megahertz, and the fluid acoustically couples the energy transfer element to the bodily organ, and the fluid also cools the energy transfer element.
    Type: Application
    Filed: March 22, 2002
    Publication date: September 25, 2003
    Inventors: Dale R. Schulze, Christopher J. Hess, Michael F. Clem, Gary W. Knight, Kevin A. Harper, Rudolph H. Nobis