Patents by Inventor David Ivanko

David Ivanko 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: 7326232
    Abstract: The present disclosure is directed to staple-gap adjustment members for use in surgical stapling apparatus and methods. A gap adjustment member includes one or more bearing portions sharing a common rotational axis and one or more cam surface portions having a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis. The one or more cam surface portions can have a central axis parallel to and spaced a distance from the rotational axis of the one or more bearing portions.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: February 5, 2008
    Assignee: Tyco Healthcare Group LP
    Inventors: Frank J. Viola, David Ivanko
  • Patent number: 7296722
    Abstract: A surgical fastener applying apparatus including an anvil half-section having a distal end and a longitudinal axis; a cartridge receiving half-section having a distal end and operatively couplable with the anvil half-section such that the distal ends of the half-sections are in juxtaposed relation; and a deflection control system operatively engaged with and reinforcing the distal end of the anvil half-section when a force is applied to the distal end of the anvil half-section in a direction transverse to the longitudinal axis.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: November 20, 2007
    Assignee: Tyco Healthcare Group LP
    Inventor: David Ivanko
  • Patent number: 7293685
    Abstract: An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out. The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: November 13, 2007
    Assignee: Tyco Healthcare Group LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Publication number: 20070145096
    Abstract: The present disclosure is directed to staple-gap adjustment members for use in surgical stapling apparatus and methods. A gap adjustment member includes one or more bearing portions sharing a common rotational axis and one or more cam surface portions having a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis. The one or more cam surface portions can have a central axis parallel to and spaced a distance from the rotational axis of the one or more bearing portions.
    Type: Application
    Filed: February 26, 2007
    Publication date: June 28, 2007
    Inventors: Frank Viola, David Ivanko
  • Publication number: 20070125828
    Abstract: The present disclosure relates to surgical fastener applying apparatus for sequentially applying a plurality of surgical fasteners to body tissue. The surgical fastener applying apparatus includes a replaceable cartridge assembly receivable in a distal end portion of a cartridge receiving half-section, the cartridge assembly including a safety lockout pivotably disposed along the upper surface of the cartridge assembly and movable from an unlocked orientation permitting assembly of an anvil half-section to the cartridge receiving half-section, to a locked orientation preventing assembly of the anvil half-section to the cartridge receiving-half section.
    Type: Application
    Filed: January 29, 2007
    Publication date: June 7, 2007
    Inventors: Csaba Rethy, Karl Ehrenfels, Roberto Pedros, David Ivanko, Randolph Lehn, Frank Viola
  • Publication number: 20070119901
    Abstract: An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out. The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Inventors: Karl Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Casaba Rethy, Frank Viola
  • Publication number: 20070119900
    Abstract: An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out. The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Inventors: Karl Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba Rethy, Frank Viola
  • Patent number: 7188758
    Abstract: The present disclosure is directed to staple-gap adjustment members for use in surgical stapling apparatus and methods. A gap adjustment member includes one or more bearing portions sharing a common rotational axis and one or more cam surface portions having a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis. The one or more cam surface portions can have a central axis parallel to and spaced a distance from the rotational axis of the one or more bearing portions.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: March 13, 2007
    Assignee: Tyco Healthcare Group LP
    Inventors: Frank J. Viola, David Ivanko
  • Publication number: 20070021682
    Abstract: Systems and methods for performing neurophysiologic assessments of neural tissue including nerve pathology monitoring which may or may not be augmented by adding the ability to assess or monitor the pressure being exerted upon a nerve or nerve root before, during and/or after retraction.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 25, 2007
    Applicant: NuVasive Inc.
    Inventors: James Gharib, Allen Farquhar, Scot Martinelli, David Ivanko, Benjamin Verhage
  • Patent number: 7140527
    Abstract: An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out. The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: November 28, 2006
    Assignee: Tyco Healthcare Group LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Publication number: 20060151569
    Abstract: An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out. The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally.
    Type: Application
    Filed: February 16, 2006
    Publication date: July 13, 2006
    Inventors: Karl Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba Rethy, Frank Viola
  • Publication number: 20060138193
    Abstract: The present disclosure is directed to staple-gap adjustment members for use in surgical stapling apparatus and methods. A gap adjustment member includes one or more bearing portions sharing a common rotational axis and one or more cam surface portions having a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis. The one or more cam surface portions can have a central axis parallel to and spaced a distance from the rotational axis of the one or more bearing portions.
    Type: Application
    Filed: February 17, 2006
    Publication date: June 29, 2006
    Inventors: Frank Viola, David Ivanko
  • Publication number: 20060138194
    Abstract: The present disclosure is directed to staple-gap adjustment members for use in surgical stapling apparatus and methods. A gap adjustment member includes one or more bearing portions sharing a common rotational axis and one or more cam surface portions having a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis. The one or more cam surface portions can have a central axis parallel to and spaced a distance from the rotational axis of the one or more bearing portions.
    Type: Application
    Filed: February 21, 2006
    Publication date: June 29, 2006
    Inventors: Frank Viola, David Ivanko
  • Patent number: 7055730
    Abstract: An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: June 6, 2006
    Assignee: Tyco Healthcare Group LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Patent number: 7032799
    Abstract: The present disclosure is directed to staple-gap adjustment members for use in surgical stapling apparatus and methods. A gap adjustment member includes one or more bearing portions sharing a common rotational axis and one or more cam surface portions having a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis. The one or more cam surface portions can have a central axis parallel to and spaced a distance from the rotational axis of the one or more bearing portions.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: April 25, 2006
    Assignee: Tyco Healthcare Group LP
    Inventors: Frank J. Viola, David Ivanko
  • Publication number: 20060081678
    Abstract: An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out. The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally.
    Type: Application
    Filed: December 2, 2005
    Publication date: April 20, 2006
    Inventors: Karl Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba Rethy, Frank Viola
  • Publication number: 20050222616
    Abstract: The present disclosure relates to surgical fastener applying apparatus for sequentially applying a plurality of surgical fasteners to body tissue. The surgical fastener applying apparatus includes a replaceable cartridge assembly receivable in a distal end portion of a cartridge receiving half-section, the cartridge assembly including a safety lockout pivotably disposed along the upper surface of the cartridge assembly and movable from an unlocked orientation permitting assembly of an anvil half-section to the cartridge receiving half-section, to a locked orientation preventing assembly of the anvil half-section to the cartridge receiving-half section.
    Type: Application
    Filed: March 19, 2003
    Publication date: October 6, 2005
    Inventors: Csaba Rethy, Karl Ehrenfels, Roberto Pedros, David Ivanko, Randolph Lehn, Frank Viola
  • Publication number: 20050082336
    Abstract: A surgical fastener applying apparatus including an anvil half-section having a distal end and a longitudinal axis; a cartridge receiving half-section having a distal end and operatively couplable with the anvil half-section such that the distal ends of the half-sections are in juxtaposed relation; and a deflection control system operatively engaged with and reinforcing the distal end of the anvil half-section when a force is applied to the distal end of the anvil half-section in a direction transverse to the longitudinal axis.
    Type: Application
    Filed: October 4, 2004
    Publication date: April 21, 2005
    Inventor: David Ivanko
  • Publication number: 20040267311
    Abstract: The present disclosure is directed to staple-gap adjustment members for use in surgical stapling apparatus and methods. A gap adjustment member includes one or more bearing portions sharing a common rotational axis and one or more cam surface portions having a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis. The one or more cam surface portions can have a central axis parallel to and spaced a distance from the rotational axis of the one or more bearing portions.
    Type: Application
    Filed: March 23, 2004
    Publication date: December 30, 2004
    Inventors: Frank J. Viola, David Ivanko
  • Publication number: 20040007608
    Abstract: An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally.
    Type: Application
    Filed: April 10, 2003
    Publication date: January 15, 2004
    Inventors: Karl H. Ehrenfels, David Ivanko, Randol F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola