Patents by Inventor CHRISTOPHER A. TOKARZ

CHRISTOPHER A. TOKARZ 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: 9707011
    Abstract: A surgical access attachment for use with a surgical access device is disclosed. The surgical access attachment includes a ring and an access portion assembly. The ring is configured to engage a proximal portion of a surgical access device. The access portion assembly includes at least one flexible tab having an engagement structure. The engagement structure is configured to selectively engage the ring. The access portion assembly is configured to retain a seal. The access portion assembly is configured to disengage from the ring in response to a predetermined amount of force exerted on one flexible tab of the at least one flexible tab.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: July 18, 2017
    Assignee: Covidien LP
    Inventors: Jaroslaw T. Malkowski, Kevin Golebieski, Christopher A. Tokarz
  • Publication number: 20160151071
    Abstract: A ligation clip applier is provided and includes a handle assembly supporting an advancing mechanism removably and slidably supported within a barrel housing of the handle assembly, and a clip module removably and selectively connected to the handle assembly. The clip module includes a housing defining a proximal end, a distal end and a lumen therethrough, the clip module housing including an annular flange extending radially into the lumen thereof; and a jaw blade slidably supported within the lumen of the clip module housing. The jaw blade includes a pair of jaws disposed within the distal end of the clip module housing, the pair of jaws being biased to an open condition, wherein each jaw includes a respective cam tooth projecting therefrom, wherein the cam teeth are in operative registration with, and proximal of, the annular flange of the clip module housing.
    Type: Application
    Filed: November 16, 2015
    Publication date: June 2, 2016
    Inventors: Christopher A. Tokarz, Norvin Asido
  • Publication number: 20160128726
    Abstract: A surgical access attachment for use with a surgical access device is disclosed. The surgical access attachment includes a ring and an access portion assembly. The ring is configured to engage a proximal portion of a surgical access device. The access portion assembly includes at least one flexible tab having an engagement structure. The engagement structure is configured to selectively engage the ring. The access portion assembly is configured to retain a seal. The access portion assembly is configured to disengage from the ring in response to a predetermined amount of force exerted on one flexible tab of the at least one flexible tab.
    Type: Application
    Filed: July 21, 2015
    Publication date: May 12, 2016
    Inventors: Jaroslaw T. Malkowski, Kevin Golebieski, Christopher A. Tokarz
  • Publication number: 20150038996
    Abstract: A method of surgery includes positioning a cannula within an opening in tissue and inserting a guide member into the cannula. The cannula includes an elongated portion having a base and an elongated tubular member extending distally from the base. The elongated tubular member includes an annular wall defining a longitudinal passageway. At least one slot extends through the annular wall and is disposed in communication with the longitudinal passageway. The guide member includes a guide housing and an elongated guide shaft. The guide member defines at least one lumen extending therethrough. The method further includes releasably engaging the guide housing with the base. Upon engagement of the guide housing with the base, the at least one lumen is aligned with the at least one slot to define a guide passageway through the guide member and cannula.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Inventors: JAROSLAW T. MALKOWSKI, SCOTT J. PRIOR, JOHN D. HENDERSHOT, III, KENNETH W. HORTON, CHRISTOPHER A. TOKARZ, DANNY R. BERRY
  • Publication number: 20150038793
    Abstract: A surgical system includes a cannula and a guide member. The cannula is configured for positioning within an opening in tissue. The cannula includes a base and an elongated tubular member extending distally from the base. The elongated tubular member includes an annular wall defining a longitudinal passageway and defines at least one slot extending through the annular wall. The guide member includes a guide housing configured for releasably engaging the guide member with the cannula and an elongated guide shaft configured for insertion into the elongated tubular member of the cannula. The guide member defines at least one lumen extending therethrough and is configured such that, upon engagement of the guide member with the cannula, the at least one lumen is aligned with the at least one slot of the cannula to define a guide passageway through the guide member and cannula.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Inventors: SCOTT J. PRIOR, JAROSLAW T. MALKOWSKI, JOHN D. HENDERSHOT, III, KENNETH W. HORTON, CHRISTOPHER A. TOKARZ, GREGORY F. TEBBE, DANNY R. BERRY
  • Publication number: 20150038997
    Abstract: A guide member configured for guiding a suture passer through a cannula and tissue surrounding the cannula to facilitate closure of an opening in tissue. The guide member includes a guide housing and an elongated guide shaft. The guide housing is configured for releasably engaging the guide member with the cannula and defines an entry aperture. The elongated guide shaft extends distally from the guide housing and defines an annular exterior surface. An exit aperture is defined through the annular exterior surface. The guide member defines a lumen extending from the entry aperture, through the guide housing and the elongated guide shaft, to the exit aperture. The entry aperture, lumen, and exit aperture cooperating to define a passageway extending through the guide member.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Inventors: JAROSLAW T. MALKOWSKI, SCOTT J. PRIOR, JOHN D. HENDERSHOT, III, KENNETH W. HORTON, CHRISTOPHER A. TOKARZ, DANNY R. BERRY, WAYNE A. JOHNSON
  • Publication number: 20050115649
    Abstract: Process for hot rolling of high-strength low-alloy steel cast in Compact Strip Production as a thin slab. The strain and temperature at initial roll stands where deformation occurs allows full recrystallization, and at latest roll stands where deformation occurs there is no recrystallization. Deformation is absent at strains and temperatures where partial recrystallization would occur, allowing increased recrystallization over conventional CSP rolling. The result may be beneficial for microalloyed high-strength low-alloy steel in permitting accurate ultrasonic testing of welds. The time allowed between deformation at passes through roll stands may be increased by eliminating deformation at one or more central roll stands. Combined with increased strain at the initial roll stands where the temperature of the steel is in the full recrystallization region, the process may result in a relatively fine and uniform austenite grain size.
    Type: Application
    Filed: March 26, 2004
    Publication date: June 2, 2005
    Inventors: Christopher Tokarz, Anthony DeArdo, C. Garcia, Clinton Graham