Patents by Inventor Karl Ehrenfels

Karl 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).

  • Publication number: 20080116244
    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 15, 2008
    Publication date: May 22, 2008
    Inventors: Csaba Rethy, Karl Ehrenfels, Roberto Pedros, David Ivanko, Randolph Lehn, Frank Viola
  • 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: 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
  • 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: 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: 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
  • Patent number: 6436054
    Abstract: A biopsy system is provided including a housing and a biopsy instrument operatively associated with the housing and configured and dimensioned to remove a tissue sample from a patient. A firing module is included that is detachably engageable with the housing and operatively associated with the biopsy instrument to facilitate selective rapid advancement of at least a portion of the biopsy instrument toward a targeted location with the patient. The biopsy instrument includes a tissue receiving portion. The system may include an indexing assembly disposed within the housing and configured to cooperate with the biopsy instrument to selectively orient the tissue receiving portion. The indexing assembly may include a manual gearing assembly configured for selective orientation of the tissue receiving portion. The system may include a linear advancement control assembly disposed within the housing and configured to effect linear actuation of a tubular knife member.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: August 20, 2002
    Assignee: United States Surgical Corporation
    Inventors: Frank Viola, Csaba L. Rethy, David Ivanko, Scott Martinelli, Bruce Jankowski, Randolph Lehn, James Dale, Arthur Stickney, Karl Ehrenfels
  • Patent number: 6394982
    Abstract: A fibrin glue applicator system (10) is provided for dispensing a first and a second protein solution which form a biological adhesive when intermixed on an application site. The fibrin glue applicator system (10) includes a coupler interface (16), a disposable loading unit (DLU) (14), and a housing (12) having a handle portion (20) which includes a trigger (22) operatively associated with a slide bar (36) for dispensing the solutions from the DLU (14). Each piercer (66) is fluid communication with one of the two cylinders (46) of the DLU (14) via a respective conduit (64) connected to a respective main conduit (60). A first one-way valve (68) is included within each conduit (64) to open, and close a path leading from the piercer (66) to the main conduit (60). A second one-way valve (70) is fixed within each main conduit (60) in proximity to each dispensing orifice to open, and close a path leading from each cylinder (46) to its corresponding dispensing orifice.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: May 28, 2002
    Assignee: United States Surgical Corporation
    Inventor: Karl Ehrenfels