Patents by Inventor Robert M. Sharp

Robert M. Sharp 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: 10893901
    Abstract: A surgical instrument includes an active electrode coupled to a source of electrosurgical energy. The active electrode includes a tissue-contacting surface on an exterior surface of the instrument such that the tissue-contacting surface of the active electrode may intimately engage tissue. A replacement electrode includes a tissue-contacting surface, and is located in an interior cavity of the instrument. A seal is formed between the active electrode and the interior cavity of the instrument such that the tissue-contacting-surface of the replacement electrode is isolated from contamination exposed to the exterior of the instrument. The active electrode is removable from the instrument to expose the tissue-contacting surface of the replacement electrode, and the replacement electrode is connectable to the source of electrosurgical energy when the active electrode is removed.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: January 19, 2021
    Assignee: Covidien LP
    Inventors: Robert M. Sharp, William H. Nau, Jr., Glenn A. Horner, Duane E. Kerr, Kristel L. Ambrosius
  • Patent number: 10869682
    Abstract: A surgical system includes an attaching device having an end effector disposed at the distal end thereof. The end effector includes a support member, a wrist pivot pivotably coupling the end effector to the attaching device, and first and second jaw members pivotably coupled to one another and the support member. A first cable is operably coupled to the wrist pivot and configured to articulate the end effector relative to the attaching device. Second and third cables are operably coupled to the jaw members and configured to pivot the jaw members relative to the support member. A first actuation of the second and third cables collectively pivots the first and second jaw members relative to the support member. A second actuation of the second and third cables pivots the first and second jaw members relative to one another and the support member between a spaced-apart position and an approximated position.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: December 22, 2020
    Assignee: Covidien LP
    Inventors: Thomas E. Drochner, James D. Allen, IV, Gary M. Couture, William H. Nau, Jr., Robert M. Sharp, David J. Van Tol
  • Publication number: 20200297406
    Abstract: An electrosurgical instrument includes a housing including an elongated shaft. A stationary actuation member is axially disposed within the elongated shaft and includes a cam pin. An actuating mechanism is operably coupled to the elongated shaft and is moveable relative to the housing to selectively cause movement of the elongated shaft. An end effector includes a pair of opposing first and second jaw members operably coupled about a common pivot. One or both of the jaw members includes a camming slot configured to engage the cam pin. Each jaw member includes an electrically conductive tissue sealing surface adapted to connect to a source of electrosurgical energy. A knife blade is supported in the elongated shaft and moveable in a longitudinal direction to cut tissue disposed between the jaw members. A switch is configured to be engaged by the actuating mechanism to initiate delivery of electrosurgical energy to tissue.
    Type: Application
    Filed: June 5, 2020
    Publication date: September 24, 2020
    Inventors: Robert F. McCullough, JR., Ryan C. Artale, Robert M. Sharp, Tony Moua, Mark J. Huseman, Audrey Earnshaw
  • Publication number: 20200297369
    Abstract: An end effector assembly configured for use with a surgical instrument or surgical system includes first and second jaw members each including an outer jaw housing, a tissue-treating plate, and a longitudinally-extending channel therethrough. At least one of the first or second jaw members is pivotable relative to the other between a spaced-apart position and an approximated position. A cutting mechanism is configured to cut tissue grasped between the jaw members. The cutting mechanism may include an activation member coupled to a knife and configured to advance the knife transversely between the jaw members, a heat-activated elongated sheet configured to un-roll to advance a cutting edge thereof transversely between the jaw members, or a clutch and spring mechanism configured to deploy a knife longitudinally between the jaw members.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Inventors: Thomas E. Drochner, David J. Van Tol, Duane E. Kerr, Gary M. Couture, James D. Allen, IV, Robert M. Sharp
  • Publication number: 20200246065
    Abstract: A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 6, 2020
    Inventors: David M. Garrison, James D. Allen, IV, Jeffrey R. Unger, Duane E. Kerr, Sean T. O'Neill, Peter M. Mueller, Kim V. Brandt, James S. Cunningham, Keir Hart, Daniel A. Joseph, Jason T. Sanders, Robert M. Sharp
  • Patent number: 10687886
    Abstract: An electrosurgical instrument includes a housing including an elongated shaft. A stationary actuation member is axially disposed within the elongated shaft and includes a cam pin. An actuating mechanism is operably coupled to the elongated shaft and is moveable relative to the housing to selectively cause movement of the elongated shaft. An end effector includes a pair of opposing first and second jaw members operably coupled about a common pivot. One or both of the jaw members includes a camming slot configured to engage the cam pin. Each jaw member includes an electrically conductive tissue sealing surface adapted to connect to a source of electrosurgical energy. A knife blade is supported in the elongated shaft and moveable in a longitudinal direction to cut tissue disposed between the jaw members. A switch is configured to be engaged by the actuating mechanism to initiate delivery of electrosurgical energy to tissue.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: June 23, 2020
    Assignee: COVIDIEN LP
    Inventors: Robert F. McCullough, Jr., Ryan C. Artale, Robert M. Sharp, Tony Moua, Mark J. Huseman, Audrey Earnshaw
  • Patent number: 10682154
    Abstract: An end effector assembly configured for use with a surgical instrument or surgical system includes first and second jaw members each including an outer jaw housing, a tissue-treating plate, and a longitudinally-extending channel therethrough. At least one of the first or second jaw members is pivotable relative to the other between a spaced-apart position and an approximated position. A cutting mechanism is configured to cut tissue grasped between the jaw members. The cutting mechanism may include an activation member coupled to a knife and configured to advance the knife transversely between the jaw members, a heat-activated elongated sheet configured to un-roll to advance a cutting edge thereof transversely between the jaw members, or a clutch and spring mechanism configured to deploy a knife longitudinally between the jaw members.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: June 16, 2020
    Assignee: Covidien LP
    Inventors: Thomas E. Drochner, David J. Van Tol, Duane E. Kerr, Gary M. Couture, James D. Allen, IV, Robert M. Sharp
  • Patent number: 10639095
    Abstract: A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween.
    Type: Grant
    Filed: May 6, 2018
    Date of Patent: May 5, 2020
    Assignee: COVIDIEN LP
    Inventors: David M. Garrison, James D. Allen, IV, Jeffrey R. Unger, Duane E. Kerr, Sean T. O'Neill, Peter M. Mueller, Kim V. Brandt, James S. Cunningham, Keir Hart, Daniel A. Joseph, Jason T. Sanders, Robert M. Sharp
  • Publication number: 20200129227
    Abstract: An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes a pair of spaced apart electrically conductive tissue contacting surfaces which each have an insulator disposed therebetween, the conductive surfaces are connected to an electrosurgical energy source. The first jaw member includes an electrically conductive cutting element disposed within the insulator which extends towards the second tissue contacting surface to create a gap therebetween. The cutting element is inactive during the sealing process while the two pairs of electrically conductive surfaces are activated to seal tissue.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Inventors: Kristin D. Johnson, Robert M. Sharp, Jeffrey R. Unger, Gary M. Couture
  • Patent number: 10588686
    Abstract: A surgical instrument configured to facilitate access to interior components thereof for cleaning and refurbishment purposes includes a housing assembly, an elongated shaft assembly and an end effector. The housing assembly includes an actuator, and the elongated shaft assembly includes an interior control member operatively coupled to the actuator. The elongated shaft assembly also includes outer cover including first and second cover members and a hinge coupling the first and second cover members to one another such that the outer cover may be selectively moved between a closed configuration wherein the interior control member is enclosed within the outer cover and an open configuration wherein the interior control member is exposed. The end effector is supported at a distal end of the elongated shaft assembly, and is operatively associated with the interior control member.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: March 17, 2020
    Assignee: Covidien LP
    Inventors: James D. Allen, IV, Robert M. Sharp, Kristel L. Ambrosius, Glenn A. Horner, Daniel A. Joseph, Peter M. Mueller, Duane E. Kerr, Ryan C. Artale
  • Patent number: 10531907
    Abstract: A method of treating bowel diseases includes introducing a fluid into a portion of a patient's colon and applying energy thereto from an external energy source such that the fluid and the energy cooperate to treat tissue of the portion of the patient's colon in contact with the fluid. Another method of treating inflammatory bowel diseases includes sealing a portion of a patient's colon, introducing an electrically-conductive fluid thereto, and energizing an electrode disposed therein to treat tissue of the portion of the patient's colon in contact with the electrically-conductive fluid. Another method of treating inflammatory bowel diseases includes sealing a portion of a patient's colon and introducing a heated fluid at a temperature equal to or above 60° C. to treat tissue of the portion of the patient's colon in contact with the heated fluid.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: January 14, 2020
    Assignee: Covidien LP
    Inventors: Robert M. Sharp, Darion R. Peterson, Duane E. Kerr, Arlen K. Ward, Anthony B. Ross, Rebecca J. Coulson, William H. Nau, Jr.
  • Publication number: 20200013130
    Abstract: Methods and systems for controlling the usage of devices with embedded RFID tags including connecting a device to an energy source and reading data from a memory device incorporated in the device. The data may include a unique identifier (UID), a usage value, an activation value, a reprocessing value, and/or a sterilization indicator. The usage value is incremented when the device is connected to the energy source and the activation value is incremented when the device is activated permitting energy to flow from the energy source to the device. Usage of the device is prevented if the UID is on a list of prohibited UlDs, the usage value is not lower than a usage limitation value, the reprocessing value equals a reprocessing limitation value, the activation value equals an activation limitation value, and/or the sterilization indicator does not indicate that the device has been sterilized since its previous usage.
    Type: Application
    Filed: August 27, 2019
    Publication date: January 9, 2020
    Inventors: PATRICK L. DUMBAULD, JEFFREY L. JENSEN, SCOTT E.M. FRUSHOUR, WILLIAM G. PATERSON, PAUL E. OURADA, ROBERT M. SHARP, ERICH M. VELANDIA
  • Publication number: 20190388143
    Abstract: A surgical forceps includes a housing having a movable handle coupled thereto and movable between an initial position and a compressed position. A drive bar is operably coupled to the movable handle such that movement of the movable handle between the initial and compressed positions effects longitudinal translation of the drive bar. The drive bar further includes a coupling member disposed at a distal end thereof. An end effector assembly includes first and second jaw members movable between spaced-apart and approximated positions. Each jaw member defines a cam slot. A cam pin is slidably disposed within the cam slot of each of the jaw members. The coupling member is configured to releasably engage the cam pin such that movement of the movable handle between the initial position and the compressed position effects movement of the jaw members between the spaced-apart position and the approximated position.
    Type: Application
    Filed: September 4, 2019
    Publication date: December 26, 2019
    Inventors: DUANE E. KERR, JAMES D. ALLEN, IV, ROBERT M. SHARP, WILLIAM H. NAU, JR.
  • Patent number: 10499977
    Abstract: A method of surgery utilizing an end effector assembly having first and second jaw members defining a grasping area therebetween and a tissue-treating area therebetween. Each of the first and second jaw members defines a knife channel positioned within the grasping area and outside of the tissue-treating area. The end effector assembly is positioned such that the knife channels are positioned adjacent tissue to be removed. Thereafter, the first and/or second jaw members are moved from a spaced-apart position to an approximated position to grasp tissue therebetween, the jaw members are energized for conducting energy through tissue disposed within the tissue-treating area to treat tissue disposed within the tissue-treating area, and a knife is advanced through the knife channels to cut tissue adjacent the tissue-treating area thereby separating tissue.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 10, 2019
    Assignee: Covidien LP
    Inventors: David J. Van Tol, Gary M. Couture, Robert M. Sharp, John R. Twomey, Barry J. Kaup
  • Patent number: 10499976
    Abstract: A surgical instrument includes an end effector assembly having first and second jaw members each jaw member defining an opposed surface. The jaw members are movable between a spaced-apart position and an approximated position for grasping tissue within a grasping area. First and second tissue-treating plates are disposed on the jaw members and adapted to connect to a source of energy for treating tissue disposed within a tissue-treating. Each jaw member defines a knife channel positioned within the grasping area and outside of the tissue-treating area. A knife is selectively movable between a retracted position, wherein the knife is positioned proximally of the jaw members, and an extended position, wherein the knife extends at least partially through the knife channels of the jaw members to cut tissue positioned adjacent the tissue-treating area.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 10, 2019
    Assignee: Covidien LP
    Inventors: David J. Van Tol, Gary M. Couture, Robert M. Sharp, John R. Twomey, Barry J. Kaup
  • Publication number: 20190343582
    Abstract: A forceps includes a drive assembly and an end effector assembly having first and second jaw members movable between a spaced-apart position, a first approximated position, and a second approximated position. The drive assembly includes a drive housing and a drive bar. The proximal end of the drive bar is coupled to the drive housing, while the distal end of the drive bar is coupled to at least one of the jaw members. The drive housing and the drive bar are selectively movable in conjunction with one another between a first position and a second position to move the jaw members between the spaced-apart position and the first approximated position. The drive assembly is selectively activatable to move the drive bar independent of the drive housing from the second position to a third position to move the jaw members from the first approximated position to the second approximated position.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 14, 2019
    Inventors: WILLIAM H. NAU, JR., ARLEN J. RESCHKE, ROBERT M. SHARP, DUANE E. KERR, JAMES D. ALLEN, IV
  • Publication number: 20190336201
    Abstract: A forceps includes an end effector assembly having first and second jaw members movable between a spaced-apart position and an approximated position for grasping tissue therebetween. A knife assembly having a cutting blade disposed at a distal end thereof is also provided. The knife assembly is translatable relative to the end effector assembly between a retracted position and an extended position, wherein the cutting blade extends between the jaw members to cut tissue grasped therebetween. The knife assembly includes a proximal component and a first distal component that includes the cutting blade. The proximal and first distal components are removably coupled to one another to facilitate replacement of the first distal component. Methods of preparing such forceps for reuse are also provided.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventors: Duane E. Kerr, James D. Allen, IV, Edward M. Chojin, Allan J. Evans, Russell D. Hempstead, Glenn A. Horner, Mark J. Huseman, Daniel A. Joseph, Arlen J. Reschke, Robert M. Sharp
  • Patent number: 10413353
    Abstract: A surgical forceps includes a housing having a movable handle coupled thereto and movable between an initial position and a compressed position. A drive bar is operably coupled to the movable handle such that movement of the movable handle between the initial and compressed positions effects longitudinal translation of the drive bar. The drive bar further includes a coupling member disposed at a distal end thereof. An end effector assembly includes first and second jaw members movable between spaced-apart and approximated positions. Each jaw member defines a cam slot. A cam pin is slidably disposed within the cam slot of each of the jaw members. The coupling member is configured to releasably engage the cam pin such that movement of the movable handle between the initial position and the compressed position effects movement of the jaw members between the spaced-apart position and the approximated position.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 17, 2019
    Assignee: COVIDIEN LP
    Inventors: Duane E. Kerr, James D. Allen, IV, Robert M. Sharp, William H. Nau, Jr.
  • Patent number: 10390855
    Abstract: A forceps includes an end effector assembly having first and second jaw members movable relative to one another between a spaced-apart position, a first approximated position, and a second approximated position. One or both of the jaw members including a first stop member coupled thereto and disposed between the jaw members. The first stop member is longitudinally translatable along a surface of the at least one jaw member from a first position, wherein the first stop member inhibits approximation of the jaw members beyond the first approximated position, and a second position, wherein the first stop member inhibits approximation of the jaw members beyond the second approximated position.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: August 27, 2019
    Assignee: COVIDIEN LP
    Inventors: William H. Nau, Jr., Arlen J. Reschke, Robert M. Sharp, Duane E. Kerr
  • Patent number: 10376306
    Abstract: A forceps includes an end effector assembly having first and second jaw members movable between a spaced-apart position and an approximated position for grasping tissue therebetween. A knife assembly having a cutting blade disposed at a distal end thereof is also provided. The knife assembly is translatable relative to the end effector assembly between a retracted position and an extended position, wherein the cutting blade extends between the jaw members to cut tissue grasped therebetween. The knife assembly includes a proximal component and a first distal component that includes the cutting blade. The proximal and first distal components are removably coupled to one another to facilitate replacement of the first distal component. Methods of preparing such forceps for reuse are also provided.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: August 13, 2019
    Assignee: COVIDIEN LP
    Inventors: Duane E. Kerr, James D. Allen, IV, Edward M. Chojin, Allan J. Evans, Russell D. Hempstead, Glenn A. Horner, Mark J. Huseman, Daniel A. Joseph, Arlen J. Reschke, Robert M. Sharp