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).
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Patent number: 7326232Abstract: 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: GrantFiled: February 17, 2006Date of Patent: February 5, 2008Assignee: Tyco Healthcare Group LPInventors: Frank J. Viola, David Ivanko
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Patent number: 7296722Abstract: 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: GrantFiled: October 4, 2004Date of Patent: November 20, 2007Assignee: Tyco Healthcare Group LPInventor: David Ivanko
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Patent number: 7293685Abstract: 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: GrantFiled: February 16, 2006Date of Patent: November 13, 2007Assignee: Tyco Healthcare Group LPInventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
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Publication number: 20070145096Abstract: 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: ApplicationFiled: February 26, 2007Publication date: June 28, 2007Inventors: Frank Viola, David Ivanko
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Publication number: 20070125828Abstract: 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: ApplicationFiled: January 29, 2007Publication date: June 7, 2007Inventors: Csaba Rethy, Karl Ehrenfels, Roberto Pedros, David Ivanko, Randolph Lehn, Frank Viola
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Publication number: 20070119901Abstract: 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: ApplicationFiled: January 29, 2007Publication date: May 31, 2007Inventors: Karl Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Casaba Rethy, Frank Viola
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Publication number: 20070119900Abstract: 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: ApplicationFiled: January 29, 2007Publication date: May 31, 2007Inventors: Karl Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba Rethy, Frank Viola
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Patent number: 7188758Abstract: 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: GrantFiled: February 21, 2006Date of Patent: March 13, 2007Assignee: Tyco Healthcare Group LPInventors: Frank J. Viola, David Ivanko
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Publication number: 20070021682Abstract: 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: ApplicationFiled: July 20, 2006Publication date: January 25, 2007Applicant: NuVasive Inc.Inventors: James Gharib, Allen Farquhar, Scot Martinelli, David Ivanko, Benjamin Verhage
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Patent number: 7140527Abstract: 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: GrantFiled: December 2, 2005Date of Patent: November 28, 2006Assignee: Tyco Healthcare Group LPInventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
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Publication number: 20060151569Abstract: 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: ApplicationFiled: February 16, 2006Publication date: July 13, 2006Inventors: Karl Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba Rethy, Frank Viola
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Publication number: 20060138193Abstract: 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: ApplicationFiled: February 17, 2006Publication date: June 29, 2006Inventors: Frank Viola, David Ivanko
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Publication number: 20060138194Abstract: 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: ApplicationFiled: February 21, 2006Publication date: June 29, 2006Inventors: Frank Viola, David Ivanko
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Patent number: 7055730Abstract: 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: GrantFiled: October 15, 2001Date of Patent: June 6, 2006Assignee: Tyco Healthcare Group LPInventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
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Patent number: 7032799Abstract: 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: GrantFiled: October 4, 2002Date of Patent: April 25, 2006Assignee: Tyco Healthcare Group LPInventors: Frank J. Viola, David Ivanko
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Publication number: 20060081678Abstract: 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: ApplicationFiled: December 2, 2005Publication date: April 20, 2006Inventors: Karl Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba Rethy, Frank Viola
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Publication number: 20050222616Abstract: 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: ApplicationFiled: March 19, 2003Publication date: October 6, 2005Inventors: Csaba Rethy, Karl Ehrenfels, Roberto Pedros, David Ivanko, Randolph Lehn, Frank Viola
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Publication number: 20050082336Abstract: 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: ApplicationFiled: October 4, 2004Publication date: April 21, 2005Inventor: David Ivanko
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Publication number: 20040267311Abstract: 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: ApplicationFiled: March 23, 2004Publication date: December 30, 2004Inventors: Frank J. Viola, David Ivanko
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Publication number: 20040007608Abstract: 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: ApplicationFiled: April 10, 2003Publication date: January 15, 2004Inventors: Karl H. Ehrenfels, David Ivanko, Randol F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola