Patents by Inventor David A. Schechter

David A. Schechter 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: 10299853
    Abstract: An electrosurgical forceps includes a housing having a shaft extending distally therefrom. The shaft defines a longitudinal axis therethrough and a knife blade shaft is operably disposed within the shaft. An end effector is operably disposed at a distal end of the shaft. The end effector includes a pair of spaced-apart first and second jaw members that are movable from an open configuration to a clamping configuration. An electrode assembly includes first and second electrode housings and a knife blade. The first and second electrode housings are operably coupled to one another and are configured to selectively couple to respective first and second jaw members to electrosurgically treat tissue clamped between the first and second jaw members. The knife blade is configured to selectively couple to the knife blade shaft.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: May 28, 2019
    Assignee: COVIDIEN LP
    Inventors: James S. Cunningham, Allan J. Evans, Peter M. Mueller, Nathan White, David A. Schechter, Stephen Evans
  • Patent number: 10154877
    Abstract: An endoscopic surgical instrument is provided. The instrument includes a housing, a handle, an elongated shaft extending distally from the housing and defining a longitudinal axis, an end effector assembly, a drive assembly, a clevis, a first link, and a second link. The end effector assembly is disposed adjacent a distal end of the elongated shaft and includes a first jaw member and a second jaw member. The first link is pivotably connected to the clevis about a first pivot axis, and is pivotably connected to the first jaw member about a first jaw member pivot. The second link is pivotably connected to the clevis about a second pivot axis, and is pivotably connected to the second jaw member about a second jaw member pivot. The first pivot axis and the second pivot axis are offset from the longitudinal axis.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: December 18, 2018
    Assignee: Covidien LP
    Inventors: David A. Schechter, Nathan White, Joshua K. Goetz
  • Patent number: 10016183
    Abstract: Disclosed is a biopsy specimen carrier adapted for tissue biopsy samples where the specimen need not be removed or handled once housed within and including a backer board, a media removable secured to the backer board, a media carrier removable secured to the media and receptive to hold a tissue biopsy sample, a first strip of adhesive material on the media adjacent to the media carrier, and a release strip covering the first strip of adhesive material. The media is foldable to cover the media carrier carrying a tissue biopsy sample and is secured to the first strip of adhesive material with the release strip removed.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: July 10, 2018
    Assignee: 3DBiopsy, Inc.
    Inventors: Nelson N. Stone, David A. Schechter, Samuel V. Verplanck, Mike A. Brown, J. Louis Kovach, Dean M. Kingston
  • Patent number: 9848938
    Abstract: The present disclosure relates to electrosurgical instruments for use in sealing various tissues. The instrument includes a housing having a shaft attached thereto and an end effector assembly attached to a distal end of the shaft, wherein the end effector assembly includes first and second jaw members attached thereto. The jaw members are movable relative to one another from a first position for approximating tissue to at least one additional position for grasping tissue therebetween. The jaw members have an elastomeric material disposed on an inner facing tissue contacting surface thereof with the elastomeric materials including an electrode disposed therein. The electrodes are offset a distance X relative to one another such that when the jaw members are closed about the tissue and when the electrodes are activated, electrosurgical energy flows through the tissue in a generally coplanar manner relative to the tissue contacting surfaces.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: December 26, 2017
    Assignee: Covidien AG
    Inventors: David A. Schechter, Kristin D. Johnson
  • Patent number: 9717551
    Abstract: A tissue ablation device is provided for use in soft tissue and/or in bone. It is configured to include an inner probe with a first electrode and a second electrode and an outer needle through which the inner probe extends. After the inner probe is directed therewithin to a target, the outer needle can be withdrawn to expose space between the first and second electrodes to form an RF or other energy field for tissue ablation therebetween upon actuation of an energy source. Such embodiments may include methods for tissue ablation and placement of stabilizing materials.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: August 1, 2017
    Assignee: CareFusion 2200, Inc.
    Inventors: John A. Krueger, Evan D. Linderman, David A. Schechter, Michael P. Hogan, Michael C. Moses, Joshua K. Goetz, Nathan H. White
  • Publication number: 20170119459
    Abstract: An endoscopic surgical instrument is provided. The instrument includes a housing, a handle, an elongated shaft extending distally from the housing and defining a longitudinal axis, an end effector assembly, a drive assembly, a clevis, a first link, and a second link. The end effector assembly is disposed adjacent a distal end of the elongated shaft and includes a first jaw member and a second jaw member. The first link is pivotably connected to the clevis about a first pivot axis, and is pivotably connected to the first jaw member about a first jaw member pivot. The second link is pivotably connected to the clevis about a second pivot axis, and is pivotably connected to the second jaw member about a second jaw member pivot. The first pivot axis and the second pivot axis are offset from the longitudinal axis.
    Type: Application
    Filed: November 4, 2015
    Publication date: May 4, 2017
    Inventors: DAVID A. SCHECHTER, NATHAN WHITE, JOSHUA K. GOETZ
  • Publication number: 20170100103
    Abstract: Disclosed is a biopsy specimen carrier adapted for tissue biopsy samples where the specimen need not be removed or handled once housed within and including a backer board, a media removable secured to the backer board, a media carrier removable secured to the media and receptive to hold a tissue biopsy sample, a first strip of adhesive material on the media adjacent to the media carrier, and a release strip covering the first strip of adhesive material. The media is foldable to cover the media carrier carrying a tissue biopsy sample and is secured to the first strip of adhesive material with the release strip removed.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 13, 2017
    Applicant: 3D Biopsy LLC
    Inventors: Nelson N. Stone, David A. Schechter, Samuel V. Verplanck, Mike A. Brown, J. Louis Kovach, Dean M. Kingston
  • Patent number: 9480466
    Abstract: A laparoscopic surgical device is provided, including a removable tool-comprising shaft having an outer shaft and an inner actuation rod that may be removably or permanently connected together. A handle of the device includes a two-button mechanism for engaging and releasing the removable tool-comprising shaft. The two-button mechanism is configured to engage overlapping corresponding apertures of the outer shaft and the inner rod that extends through the outer shaft, and the handle may include a variety of configurations that can readily interchangeably be used with different tool bodies.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: November 1, 2016
    Assignee: CareFusion 2200, Inc.
    Inventors: Andrew P. Van De Weghe, Louis P. Mingione, David A. Schechter, David Scott Hazlitt
  • Publication number: 20160302853
    Abstract: An electrosurgical forceps includes a housing having a shaft extending distally therefrom. The shaft defines a longitudinal axis therethrough and a knife blade shaft is operably disposed within the shaft. An end effector is operably disposed at a distal end of the shaft. The end effector includes a pair of spaced-apart first and second jaw members that are movable from an open configuration to a clamping configuration. An electrode assembly includes first and second electrode housings and a knife blade. The first and second electrode housings are operably coupled to one another and are configured to selectively couple to respective first and second jaw members to electrosurgically treat tissue clamped between the first and second jaw members. The knife blade is configured to selectively couple to the knife blade shaft.
    Type: Application
    Filed: June 27, 2016
    Publication date: October 20, 2016
    Inventors: JAMES S. CUNNINGHAM, ALLAN J. EVANS, PETER M. MUELLER, NATHAN WHITE, DAVID A. SCHECHTER, STEPHEN EVANS
  • Patent number: 9375256
    Abstract: An electrosurgical forceps is provided. The electrosurgical forceps includes a housing having a shaft extending distally therefrom. The shaft defines a longitudinal axis therethrough and a knife blade shaft is operably disposed within the shaft. An end effector is operably disposed at a distal end of the shaft. The end effector includes a pair of spaced-apart first and second jaw members that are movable from an open configuration to a clamping configuration. An electrode assembly includes first and second electrode housings and a knife blade. The first and second electrode housings are operably coupled to one another and are configured to selectively couple to respective first and second jaw members to electrosurgically treat tissue clamped between the first and second jaw members. The knife blade is configured to selectively couple to the knife blade shaft.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: June 28, 2016
    Assignee: COVIDIEN LP
    Inventors: James S. Cunningham, Allan J. Evans, Peter M. Mueller, Nathan White, David A. Schechter, Stephen Evans
  • Publication number: 20150342583
    Abstract: A laparoscopic surgical device is provided, including a removable tool-comprising shaft having an outer shaft and an inner actuation rod that may be removably or permanently connected together. A handle of the device includes a two-button mechanism for engaging and releasing the removable tool-comprising shaft. The two-button mechanism is configured to engage overlapping corresponding apertures of the outer shaft and the inner rod that extends through the outer shaft, and the handle may include a variety of configurations that can readily interchangeably be used with different tool bodies.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 3, 2015
    Applicant: CareFusion 2200, Inc.
    Inventors: Andrew P. Van De Weghe, Louis P. Mingione, David A. Schechter, David Scott Hazlitt
  • Patent number: 9168089
    Abstract: A control system for controlling the output of an electrosurgical generator is disclosed. The control system includes a control module configured to receive an optical signal from a surgical site, the optical signal being related to an optical tissue characteristic, the control module configured to process the optical signal using a closed loop control loop and provide continual control of the output of the electrosurgical generator in response to the optical tissue characteristic.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: October 27, 2015
    Assignee: Covidien AG
    Inventors: Steven P. Buysse, Bret S. Felton, David N. Heard, David Keppel, Ronald J. Podhajsky, Dale F. Schmaltz, Robert H. Wham, Edward C. Meagher, Kate R. Lawes, David A. Schechter, Chelsea Shields, Philip M. Tetzlaff, Jeremy S. James
  • Patent number: 9113900
    Abstract: A system for monitoring and/or controlling tissue modification during an electrosurgical procedure is disclosed. The system includes a sensor module and a control module operatively coupled to the sensor module and configured to control the delivery of electrosurgical energy to tissue based on information provided by the sensor module. The sensor module further includes at least one optical source configured to generate light and at least one optical detector configured to analyze a portion of the light transmitted through, and/or reflected from, the tissue.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: August 25, 2015
    Assignee: Covidien AG
    Inventors: Steven P. Buysse, Bret S. Felton, David N. Heard, David S. Keppel, Ronald J. Podhajsky, Dale F. Schmaltz, Robert H. Wham, Edward C. Meagher, Kate R. Lawes, David A. Schechter, Chelsea Shields, Philip M. Tetzlaff, Jeremy S. James
  • Publication number: 20150141993
    Abstract: The present disclosure relates to electrosurgical instruments for use in sealing various tissues. The instrument includes a housing having a shaft attached thereto and an end effector assembly attached to a distal end of the shaft, wherein the end effector assembly includes first and second jaw members attached thereto. The jaw members are movable relative to one another from a first position for approximating tissue to at least one additional position for grasping tissue therebetween. The jaw members have an elastomeric material disposed on an inner facing tissue contacting surface thereof with the elastomeric materials including an electrode disposed therein. The electrodes are offset a distance X relative to one another such that when the jaw members are closed about the tissue and when the electrodes are activated, electrosurgical energy flows through the tissue in a generally coplanar manner relative to the tissue contacting surfaces.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 21, 2015
    Inventors: DAVID A. SCHECHTER, KRISTIN D. JOHNSON
  • Patent number: 8945125
    Abstract: The present disclosure relates to electrosurgical instruments for use in sealing various tissues. The instrument includes a housing having a shaft attached thereto and an end effector assembly attached to a distal end of the shaft, wherein the end effector assembly includes first and second jaw members attached thereto. The jaw members are movable relative to one another from a first position for approximating tissue to at least one additional position for grasping tissue therebetween. The jaw members have an elastomeric material disposed on an inner facing tissue contacting surface thereof with the elastomeric materials including an electrode disposed therein. The electrodes are offset a distance X relative to one another such that when the jaw members are closed about the tissue and when the electrodes are activated, electrosurgical energy flows through the tissue in a generally coplanar manner relative to the tissue contacting surfaces.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: February 3, 2015
    Assignee: Covidien AG
    Inventors: David A. Schechter, Kristin D. Johnson
  • Publication number: 20140236144
    Abstract: A tissue ablation device is provided for use in soft tissue and/or in bone. It is configured to include an inner probe with a first electrode and a second electrode and an outer needle through which the inner probe extends. After the inner probe is directed therewithin to a target, the outer needle can be withdrawn to expose space between the first and second electrodes to form an RF or other energy field for tissue ablation therebetween upon actuation of an energy source. Such embodiments may include methods for tissue ablation and placement of stabilizing materials.
    Type: Application
    Filed: February 21, 2013
    Publication date: August 21, 2014
    Inventors: John A. Krueger, Evan D. Linderman, David A. Schechter, Michael P. Hogan, Michael C. Moses, Joshua K. Goetz, Nathan H. White
  • Publication number: 20140221999
    Abstract: An electrosurgical forceps is provided. The electrosurgical forceps includes a housing having a shaft extending distally therefrom. The shaft defines a longitudinal axis therethrough and a knife blade shaft is operably disposed within the shaft. An end effector is operably disposed at a distal end of the shaft. The end effector includes a pair of spaced-apart first and second jaw members that are movable from an open configuration to a clamping configuration. An electrode assembly includes first and second electrode housings and a knife blade. The first and second electrode housings are operably coupled to one another and are configured to selectively couple to respective first and second jaw members to electrosurgically treat tissue clamped between the first and second jaw members. The knife blade is configured to selectively couple to the knife blade shaft.
    Type: Application
    Filed: December 6, 2013
    Publication date: August 7, 2014
    Applicant: COVIDIEN LP
    Inventors: JAMES S. CUNNINGHAM, ALLAN J. EVANS, PETER M. MUELLER, NATHAN WHITE, DAVID A. SCHECHTER, STEPHEN EVANS
  • Patent number: 8685016
    Abstract: An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a processor configured to determine whether a tissue reaction has occurred as a function of a minimum impedance value and a predetermined rise in impedance, wherein tissue reaction corresponds to a boiling point of tissue fluid, and an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue. A tissue cooling period is provided to enhance operative outcomes.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: April 1, 2014
    Assignee: Covidien AG
    Inventors: Roberth H. Wham, Rebecca Coulson, Kari L. Riegner, David A. Schechter, Nicole McKenna, Barbara R. Bastian, Jennifer S. Harper
  • Patent number: 8679114
    Abstract: An electrode sealing assembly for use with an electrosurgical instrument for sealing tissue includes first and second jaw members which are movable from a first position in spaced relation relative to one another to at least one second position for grasping tissue. The jaw members include electrically conductive sealing plates designed to selectively transmit electrosurgical energy to tissue disposed between the sealing plates. The jaw members also include a thermoelectric cooling plate having a first surface in direct contact with an outer surface of the sealing plate. The thermoelectric cooling plate includes first and second electrical connections on opposite sides of the jaw member. The first connection is configured to selectively transmit a first electrical potential and the second connection is configured to selectively transmit a second electrical potential such that heat generated by the sealing plates is transferred away from the tissue via the thermoelectric cooling plate.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: March 25, 2014
    Assignee: Covidien AG
    Inventors: Troy J. Chapman, Curt D. Hammill, Chelsea Shields, David A. Schechter, Ronald J. Podhajsky
  • Patent number: 8465534
    Abstract: There are disclosed methods and apparatus for attachment and welding of tissue. In an embodiment, the apparatus includes an energy applicator configured to apply energy to generate heat within a target tissue to evaporate water to create dried tissue, and a thermally conductive material disposed adjacent the first tissue contacting surface or the second tissue contacting surface. The thermally conductive material may be configured for direct contact with the target tissue heated by the energy applicator. The thermally conductive material provides a high coefficient of thermal conductivity so as to evenly distribute heat within the targeted tissue area. Other embodiments are also disclosed.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: June 18, 2013
    Inventor: David A. Schechter