Patents by Inventor Karl H. Ehrenfels

Karl H. Ehrenfels 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: 10959729
    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: Grant
    Filed: February 1, 2019
    Date of Patent: March 30, 2021
    Assignee: COVIDIEN LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Publication number: 20190159777
    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: February 1, 2019
    Publication date: May 30, 2019
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Patent number: 10231733
    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: Grant
    Filed: August 2, 2016
    Date of Patent: March 19, 2019
    Assignee: Covidien LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Publication number: 20160338702
    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: August 2, 2016
    Publication date: November 24, 2016
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Patent number: 9402629
    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: Grant
    Filed: July 24, 2013
    Date of Patent: August 2, 2016
    Assignee: Covidien LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank Viola
  • Publication number: 20130306703
    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: July 24, 2013
    Publication date: November 21, 2013
    Applicant: COVIDIEN LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank Viola
  • Patent number: 8505801
    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: Grant
    Filed: December 19, 2011
    Date of Patent: August 13, 2013
    Assignee: Covidien LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank Viola
  • Publication number: 20120085808
    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: December 19, 2011
    Publication date: April 12, 2012
    Applicant: Tyco Healthcare Group LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank Viola
  • Patent number: 8091754
    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: Grant
    Filed: July 22, 2010
    Date of Patent: January 10, 2012
    Assignee: Tyco Healthcare Group LP
    Inventors: Karl H. Ehrenfels, David C. Eastwood Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank Viola
  • Patent number: 8074861
    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: Grant
    Filed: November 17, 2009
    Date of Patent: December 13, 2011
    Assignee: Tyco Healthcare Group LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank Viola
  • Patent number: 7942300
    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: Grant
    Filed: January 15, 2008
    Date of Patent: May 17, 2011
    Assignee: Tyco Healthcare Group LP
    Inventors: Csaba L. Rethy, Karl H. Ehrenfels, Roberto Pedros, David Ivanko, Randolph F. Lehn, Frank J. Viola
  • Publication number: 20100282817
    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: July 22, 2010
    Publication date: November 11, 2010
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank Viola
  • Publication number: 20100193570
    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: November 17, 2009
    Publication date: August 5, 2010
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank Viola
  • Patent number: 7721933
    Abstract: A surgical fastener applying apparatus is provided including a cartridge half-section and an anvil half-section, the cartridge half-section and anvil half-section being relatively movable from an unclamped position to a clamped position; and a loading unit receivable in the cartridge half-section and having a plurality of staples and a plurality of staple pusher members. The cartridge half-section includes a frame; a member being longitudinally movable through the loading unit to interact with the plurality of staple pusher members to fire the staples; and a lockout mechanism arranged to block advancement of the member in a locked-out position of the lockout mechanism. In use, after loading of the loading unit in the surgical fastener applying apparatus and subsequent clamping of the cartridge and anvil half-sections, the lockout mechanism is moved to an unlocked position to allow advancement of the member.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: May 25, 2010
    Assignee: Tyco Healthcare Group LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Patent number: 7631794
    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: Grant
    Filed: May 6, 2008
    Date of Patent: December 15, 2009
    Assignee: Tyco Healthcare Group LP
    Inventors: Csaba L. Rethy, Karl H. Ehrenfels, Roberto Pedros, David Ivanko, Randolph F. Lehn, Frank J. Viola
  • Patent number: 7631793
    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: Grant
    Filed: January 29, 2007
    Date of Patent: December 15, 2009
    Assignee: Tyco Healthcare Group LP
    Inventors: Csaba L. Rethy, Karl H. Ehrenfels, Roberto Pedros, David Ivanko, Randolph F. Lehn, Frank J. Viola
  • Patent number: 7568604
    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: January 24, 2008
    Date of Patent: August 4, 2009
    Assignee: Tyco Healthcare Group LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Publication number: 20080302854
    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: May 6, 2008
    Publication date: December 11, 2008
    Inventors: Csaba L. Rethy, Karl H. Ehrenfels, Roberto Pedros, David Ivanko, Randolph F. Lehn, Frank J. Viola
  • Publication number: 20080283573
    Abstract: A surgical fastener applying apparatus is provided including a cartridge half-section and an anvil half-section, the cartridge half-section and anvil half-section being relatively movable from an unclamped position to a clamped position; and a loading unit receivable in the cartridge half-section and having a plurality of staples and a plurality of staple pusher members. The cartridge half-section includes a frame; a member being longitudinally movable through the loading unit to interact with the plurality of staple pusher members to fire the staples; and a lockout mechanism arranged to block advancement of the member in a locked-out position of the lockout mechanism. In use, after loading of the loading unit in the surgical fastener applying apparatus and subsequent clamping of the cartridge and anvil half-sections, the lockout mechanism is moved to an unlocked position to allow advancement of the member.
    Type: Application
    Filed: August 5, 2008
    Publication date: November 20, 2008
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola
  • Patent number: 7419081
    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: January 29, 2007
    Date of Patent: September 2, 2008
    Assignee: Tyco Healthcare Group LP
    Inventors: Karl H. Ehrenfels, David Ivanko, Randolph F. Lehn, Roberto Pedros, Csaba L. Rethy, Frank J. Viola