Patents by Inventor Mathew Erle Mitchell

Mathew Erle Mitchell 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: 20180078277
    Abstract: The present disclosure relates to an arthroscopic resection device. The device includes an outer member including a hub, an inner member including a hub, the inner member housed within the outer member, a tube coupled to the outer member, and means for allowing longitudinal movement of the outer member relative to the inner member, the means coupled to the tube. A method of tissue repair and other arthroscopic resection devices are also disclosed.
    Type: Application
    Filed: November 27, 2017
    Publication date: March 22, 2018
    Inventors: Victor ILLIZALITURRI-SANCHEZ, Dean MATSUDA, Mathew Erle MITCHELL, Rafal Z. JEZIERSKI, Bryan S. JONES
  • Patent number: 9827003
    Abstract: An arthroscopic resection device is disclosed. The device includes an outer member including a hub, an inner member including a hub, the inner member housed within the outer member, a tube coupled to the outer member, and means for allowing longitudinal movement of the outer member relative to the inner member, the means coupled to the tube. A method of tissue repair and other arthroscopic resection devices are also disclosed.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: November 28, 2017
    Assignee: Smith & Nephew, Inc.
    Inventors: Victor Ilizaliturri-Sanchez, Dean Matsuda, Mathew Erle Mitchell, Rafal Z Jezierski, Bryan S Jones
  • Patent number: 9456868
    Abstract: An instrument includes a handle portion, an actuator, a shaft, a rigid member, and an angular control mechanism. The shaft has a proximal end and a distal end with an electrode region, and a flexible region in between. Moving the actuator causes portions of the flexible region distal of a pivot region to bend such that an angular orientation and a radial offset of the electrode region reach an angular orientation and a radial offset, respectively, when the actuator reaches the end position. A distal portion of the rigid member defines the pivot region. Moving the rigid member along the shaft causes the pivot region to translate. The radial offset varies depending on the position of the pivot region.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: October 4, 2016
    Assignee: Smith & Nephew, Inc.
    Inventors: Mathew Erle Mitchell, Christopher D. McDonald, Paul Robert Duhamel
  • Patent number: 9011429
    Abstract: An instrument includes a handle portion, an actuator, a shaft, a rigid member, and an angular control mechanism. The shaft has a proximal end and a distal end with an electrode region, and a flexible region in between. Moving the actuator causes portions of the flexible region distal of a pivot region to bend such that an angular orientation and a radial offset of the electrode region reach a maximum angular orientation and a maximum radial offset, respectively, when the actuator reaches the end position. A distal portion of the rigid member defines the pivot region. Moving the rigid member along the shaft causes the pivot region to translate. The maximum radial offset varies depending on the position of the pivot region. The angular control mechanism is configured to control the angular orientation such that the maximum angular orientation is same regardless of the position of the rigid member.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: April 21, 2015
    Assignee: Smith & Nephew, Inc.
    Inventors: Mathew Erle Mitchell, Christopher D. McDonald, Paul Robert Duhamel
  • Publication number: 20130331825
    Abstract: An instrument includes a handle portion, an actuator, a shaft, a rigid member, and an angular control mechanism. The shaft has a proximal end and a distal end with an electrode region, and a flexible region in between. Moving the actuator causes portions of the flexible region distal of a pivot region to bend such that an angular orientation and a radial offset of the electrode region reach a maximum angular orientation and a maximum radial offset, respectively, when the actuator reaches the end position. A distal portion of the rigid member defines the pivot region. Moving the rigid member along the shaft causes the pivot region to translate. The maximum radial offset varies depending on the position of the pivot region. The angular control mechanism is configured to control the angular orientation such that the maximum angular orientation is same regardless of the position of the rigid member.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 12, 2013
    Applicant: SMITH & NEPHEW, INC.
    Inventors: Mathew Erle Mitchell, Christopher D. McDonald, Paul Robert Duhamel
  • Publication number: 20130072935
    Abstract: The present disclosure relates to an arthroscopic resection device. The device includes an outer member including a hub, an inner member including a hub, the inner member housed within the outer member, a tube coupled to the outer member, and means for allowing longitudinal movement of the outer member relative to the inner member, the means coupled to the tube. A method of tissue repair and other arthroscopic resection devices are also disclosed.
    Type: Application
    Filed: February 15, 2012
    Publication date: March 21, 2013
    Applicant: Smith & Nephew, Inc.
    Inventors: Dean Matsuda, Victor Ilizaliturri-Sanchez, Mathew Erle Mitchell, Rafal Z. Jezierski, Bryan S. Jones
  • Patent number: 7207990
    Abstract: A laparoscopic bipolar electrosurgical instrument can apply a large closure force between its jaws without damaging the small yoke assembly.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: April 24, 2007
    Assignee: Sherwood Services Ag
    Inventors: Michael John Lands, Stephen Wade Lukianow, Donald Robert Loeffler, James Steven Cunnigham, Kate Ryland Lawes, Daniel Lee Trimberger, II, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Patent number: 7179258
    Abstract: A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: February 20, 2007
    Assignee: Sherwood Services AG
    Inventors: Steven Paul Buysse, Dale Francis Schmaltz, Robert Luzzi, Kirk Bryan Olson, Kate Ryland Lawes, Daniel Lee Trimberger, II, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Patent number: 6960210
    Abstract: A laparoscopic bipolar electrosurgical instrument can apply a large closure force between its jaw without damaging the small yoke assembly.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: November 1, 2005
    Assignee: Sherwood Services AG
    Inventors: Michael John Lands, Stephen Wade Lukianow, Donald Robert Loeffler, James Steven Cunnigham, Kate Ryland Lawes, Daniel Lee Trimberger, II, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Publication number: 20040225288
    Abstract: A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
    Type: Application
    Filed: April 7, 2004
    Publication date: November 11, 2004
    Inventors: Steven Paul Buysse, Dale Francis Schmaltz, Robert Luzzi, Kirk Bryan Olson, Kate Ryland Lawes, Daniel Lee Trimberger, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Patent number: 6743229
    Abstract: A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: June 1, 2004
    Assignee: Sherwood Services AG
    Inventors: Steven Paul Buysse, Dale Francis Schmaltz, Robert Luzzi, Kirk Bryan Olson, Kate Ryland Lawes, Daniel Lee Trimberger, II, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Publication number: 20030032956
    Abstract: A laparoscopic bipolar electrosurgical instrument can apply a large closure force between its jaw without damaging the small yoke assembly.
    Type: Application
    Filed: September 13, 2002
    Publication date: February 13, 2003
    Inventors: Michael John Lands, Stephen Wade Lukianow, Donald Robert Loeffler, James Steven Cunnigham, Kate Ryland Lawes, Daniel Lee Trimberger, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Publication number: 20030018332
    Abstract: A bipolar electrosurgical instrument for vessel sealing comprises first and second members connected by a pivot. A pair of jaws have opposable seal surfaces that are designed to grasp vascular tissue and conduct bipolar electrosurgical current therethrough. Electrodes on the jaws, including the seal surfaces, are removable and disposable. The jaws of the instrument have mechanical interfaces designed to accept replacement electrodes. The instrument further comprises interlocking ratchets designed to hold a constant closure force between the seal surfaces. Wires extend from the electrodes along one of the members and are connectable to an electrosurgical generator.
    Type: Application
    Filed: September 17, 2002
    Publication date: January 23, 2003
    Inventors: Dale Francis Schmaltz, Robert Luzzi, David Nichols Heard, Steven Paul Buysee, Kate Ryland Lawes, Daniel Lee Trimberger, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Patent number: 6464704
    Abstract: A bipolar electrosurgical instrument for vessel sealing comprises first and second members connected by a pivot. A pair of jaws have opposable seal surfaces that are designed to grasp vascular tissue and conduct bipolar electrosurgical current therethrough. Electrodes on the jaws, including the seal surfaces, are removable and disposable. The jaws of the instrument have mechanical interfaces designed to accept replacement electrodes. The instrument further comprises interlocking ratchets designed to hold a constant closure force between the seal surfaces. Wires extend from the electrodes along one of the members and are connectable to an electrosurgical generator.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: October 15, 2002
    Assignee: Sherwood Services AG
    Inventors: Dale Francis Schmaltz, Robert Luzzi, David Nichols Heard, Steven Paul Buysee, Kate Ryland Lawes, Daniel Lee Trimberger, II, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Patent number: 6451018
    Abstract: A laparoscopic bipolar electrosurgical instrument can apply a large closure force between its jaws without damaging the small yoke assembly.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: September 17, 2002
    Assignee: Sherwood Services AG
    Inventors: Michael John Lands, Stephen Wade Lukianow, Donald Robert Loeffler, James Steven Cunnigham, Kate Ryland Lawes, Daniel Lee Trimberger, II, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Publication number: 20020082596
    Abstract: A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
    Type: Application
    Filed: March 1, 2002
    Publication date: June 27, 2002
    Inventors: Steven Paul Buysse, Dale Francis Schmaltz, Robert Luzzi, Kirk Bryan Olson, Kate Ryland Lawes, Daniel Lee Trimberger, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Patent number: 6352536
    Abstract: A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: March 5, 2002
    Assignee: Sherwood Services AG
    Inventors: Steven Paul Buysse, Dale Francis Schmaltz, Robert Luzzi, Kirk Bryan Olson, Kate Ryland Lawes, Daniel Lee Trimberger, II, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Publication number: 20010037110
    Abstract: A bipolar electrosurgical instrument for vessel sealing comprises first and second members connected by a pivot. A pair of jaws have opposable seal surfaces that are designed to grasp vascular tissue and conduct bipolar electrosurgical current therethrough. Electrodes on the jaws, including the seal surfaces, are removable and disposable. The jaws of the instrument have mechanical interfaces designed to accept replacement electrodes. The instrument further comprises interlocking ratchets designed to hold a constant closure force between the seal surfaces. Wires extend from the electrodes along one of the members and are connectable to an electrosurgical generator.
    Type: Application
    Filed: June 20, 2001
    Publication date: November 1, 2001
    Inventors: Dale Francis Schmaltz, Robert Luzzi, David Nichols Heard, Steven Paul Buysee, Kate Ryland Lawes, Daniel Lee Trimberger, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Patent number: 6228083
    Abstract: A laparoscopic bipolar electrosurgical instrument can apply a large closure force between its jaws without damaging the small yoke assembly.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: May 8, 2001
    Assignee: Sherwood Services AG
    Inventors: Michael John Lands, Stephen Wade Lukianow, Donald Robert Loeffler, James Steven Cunningham, Kate Ryland Lawes, Daniel Lee Trimberger, II, Mathew Erle Mitchell, Jenifer Serafin Kennedy
  • Patent number: 6187003
    Abstract: A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: February 13, 2001
    Assignee: Sherwood Services AG
    Inventors: Steven Paul Buysse, Dale Francis Schmaltz, Robert Luzzi, Kirk Bryan Olson, Kate Ryland Lawes, Daniel Lee Trimberger, II, Mathew Erle Mitchell, Jenifer Serafin Kennedy