Patents by Inventor Christopher Tokarz

Christopher 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).

  • Publication number: 20220168013
    Abstract: A surgical access device sterilizes tissue at a surgical site and/or the air at the surgical site. The surgical access device may include a cannula including an elongated shaft having a fluid delivery channel defined therein, a fluid delivery port coupled to the cannula and in fluid communication with the fluid delivery channel, and a porous sleeve disposed around the elongated shaft and in fluid communication with the fluid delivery channel. The fluid delivery channel provides a pathway for fluid flow (e.g., an anti-infective agent) from the fluid delivery port into the porous sleeve. The surgical access device may include a cannula including an elongated shaft having an anti-infective agent disposed therein. The surgical access device may include an instrument housing secured to a cannula, and a light source (e.g., an air sanitizing light source) disposed within a cavity of the instrument housing.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 2, 2022
    Inventors: Jacob C. Baril, Garrett P. Ebersole, Kevin M. Desjardin, Douglas M. Pattison, Christopher A. Tokarz, Astley C. Lobo, Jason Mickus
  • Publication number: 20220142671
    Abstract: A surgical access device includes a cannula having a variable length. The cannula may include a shaft assembly including an outer shaft, an intermediate shaft disposed within and longitudinal slidable relative to the outer shaft, and an inner shaft disposed within and longitudinal slidable relative to the intermediate shaft. The shaft assembly is movable between an unextended position, a fully extended position, and a semi-extended position between the unextended and fully extended positions. The cannula may include a shaft having annular folds formed therein. The annular folds are axially movable relative to each other such that the shaft is longitudinally movable between an unextended position and a plurality of extended positions.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 12, 2022
    Inventors: Kevin M. Desjardin, Astley C. Lobo, Garrett P. Ebersole, Christopher A. Tokarz, Douglas M. Pattison
  • Publication number: 20220117630
    Abstract: A surgical access device includes a cannula, an instrument housing coupled to the cannula, a port coupled to the instrument housing, and a valve disposed within the port. The cannula includes an elongated shaft defining an access lumen and an inflation lumen therethrough. The port includes an inflation channel and an insufflation channel defined therethrough. The inflation channel is in fluid communication with the inflation lumen of the cannula and the insufflation channel is in fluid communication with the access lumen of the cannula. The valve is movable within the port between an inflation position in which a passageway defined through the valve is aligned with the inflation channel of the port, and an insufflation position in which the passageway of the valve is aligned with the insufflation channel of the port.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 21, 2022
    Inventors: Christopher A. Tokarz, Douglas M. Pattison, Kevin Desjardin, Astley C. Lobo
  • Patent number: 11278316
    Abstract: A collar for a surgical access device includes an annular body laterally attachable to a cannula of the surgical access device. A spring is coupled to the annular body and movable between an uncompressed state and a compressed state. The spring is configured to manipulate the annular body between a first condition and a second condition to selectively fix the annular body at predetermined locations along the cannula or to laterally remove the annular body from the cannula while the cannula is supported within a patient's body.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: March 22, 2022
    Assignee: COVIDIEN LP
    Inventors: Oksana Buyda, Anthony Sgroi, Jr., Christopher Tokarz
  • Publication number: 20210386454
    Abstract: A cannula assembly includes an elongate shaft assembly that is adjustable by a clinician to vary the length of the cannula assembly. In particular, the elongate shaft assembly may be transitioned to provide various lengths of the cannula assembly by selectively positioning a plurality of segments of the elongate shaft assembly. In this manner, a single cannula assembly may be tailored to each patient or a surgical procedure being performed.
    Type: Application
    Filed: June 15, 2020
    Publication date: December 16, 2021
    Inventors: Astley C. Lobo, Kevin Desjardin, Douglas M. Pattison, Christopher A. Tokarz, Oksana Buyda, Amanda M. Adinolfi
  • Publication number: 20210378705
    Abstract: A surgical access assembly includes a surgical access device having a cannula tube, an expandable balloon positioned in a distal region of the cannula tube, and an inflation assembly positioned in a proximal region of the cannula tube. The inflation assembly has a port and a check valve. The port is in fluid communication with the expandable balloon and the check valve is transitionable between rest and actuated configurations. A syringe includes a barrel with a chamber and a plunger slidably disposed in the chamber. An extension of the barrel is configured for releasably engaging the check valve. The plunger also includes a release feature that is engageable with the check valve to transition the check valve from the rest configuration to the actuated configuration.
    Type: Application
    Filed: June 8, 2020
    Publication date: December 9, 2021
    Inventors: Kevin Desjardin, Astley C. Lobo, Douglas M. Pattison, Christopher A. Tokarz, Jacob C. Baril
  • Patent number: 11191567
    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: August 21, 2019
    Date of Patent: December 7, 2021
    Assignee: COVIDIEN LP
    Inventors: Jaroslaw T. Malkowski, Kevin Golebieski, Christopher A. Tokarz
  • Publication number: 20210346054
    Abstract: A surgical access assembly includes a cannula including an elongated shaft having a proximal end portion including an anchor inflation port and a distal end portion including an expandable anchor. The elongated shaft includes an inner tube and an outer tube disposed over the inner tube. The inner tube includes at least one groove defined in an outer surface thereof that forms an inflation channel with an inner surface of the outer tube. The inflation channel is in communication with the anchor inflation port and the expandable anchor.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 11, 2021
    Inventors: Kevin Desjardin, Douglas M. Pattison, Oksana Buyda, Christopher A. Tokarz, Jason Mickus, Astley C. Lobo, Amanda M. Adinolfi
  • Publication number: 20210346053
    Abstract: A surgical access assembly includes a cannula including an elongated shaft having a proximal end portion including an anchor inflation port and a distal end portion including an expandable anchor. The elongated shaft includes an inner tube and an outer tube disposed over the inner tube. The inner tube includes a channel extending longitudinally therethrough and first and second openings defined in an outer surface thereof that are in communication with the channel. The channel, the first openings, and the second openings form an inflation lumen with an inner surface of the outer tube. The inflation lumen is in communication with the anchor inflation port and the expandable anchor.
    Type: Application
    Filed: May 5, 2020
    Publication date: November 11, 2021
    Inventors: Christopher A. Tokarz, Kevin Desjardin, Douglas M. Pattison, Jason Mickus, Oksana Buyda, Astley C. Lobo, Amanda M. Adinolfi
  • Publication number: 20210330352
    Abstract: A retention mechanism for a surgical access assembly is provided. The retention mechanism includes a planar base having first and second extensions each with a free end, a first locking member disposed on the free end of the first extension, and a second locking member disposed on the free end of the second extension. The first locking member includes a U-shaped body having a first set of opposed, inwardly facing teeth. The second locking member includes a U-shaped body having a first set of opposed, outwardly facing teeth configured engage the first set of opposed, inwardly facing teeth when the retention mechanism is in a locked condition. The first set of opposed, inwardly facing teeth and the first set of opposed, outwardly facing teeth are configured to be spaced apart from each other when the retention mechanism is in an unlocked condition.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 28, 2021
    Inventors: Astley C. Lobo, Kevin Desjardin, Douglas M. Pattison, Christopher A. Tokarz, Oksana Buyda, Amanda M. Adinolfi
  • Publication number: 20210298737
    Abstract: A surgical access assembly includes a cannula including an elongated shaft and a retention anchor movably positionable along the elongated shaft. The retention anchor includes an annular body and a fixation body. The annular body includes a proximally-facing surface, a distally-facing surface, an inner side surface defining an opening therethrough, and an outer side surface. The fixation body includes a disc secured to the distally-facing surface of the annular body and wings extending radially outwardly from the disc beyond the outer side surface of the annular body. The disc defines an opening therethrough and the elongated shaft extends through the openings in the annular body and the fixation body.
    Type: Application
    Filed: March 27, 2020
    Publication date: September 30, 2021
    Inventors: Kevin Desjardin, Douglas M. Pattison, Oksana Buyda, Christopher A. Tokarz, Astley C. Lobo, Amanda M. Adinolfi
  • Publication number: 20210282880
    Abstract: A packaging clip includes a first portion detachably securing a cannula assembly thereto, a second portion detachably securing a syringe thereto, and a third portion detachably securing an obturator thereto. The first portion includes an arcuate portion and a plurality of fingers. The arcuate portion secures a sleeve portion of a fluid port of the cannula assembly thereto such that the sleeve portion is disposed orthogonal to a longitudinal axis defined by the packaging clip. The plurality of fingers includes a first finger extending from a first lateral side of the packaging clip and second and third fingers extending from a second lateral side of the packaging clip. The plurality of fingers secures the lateral portion of the fluid port such that the lateral portion extends along the longitudinal axis of the packaging clip. The first portion of the packaging clip is formed by straight-pull molding.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 16, 2021
    Inventors: Douglas M. Pattison, Oksana Buyda, Amanda M. Adinolfi, Christopher A. Tokarz
  • Publication number: 20210275215
    Abstract: A surgical access assembly including an elongated cannula member having proximal and distal end portions, a cannula housing coupled to the proximal end portion of the elongated cannula member, a balloon anchor coupled to the distal end portion of the elongated cannula member, and a collar disposed along the elongated cannula member and in fluid communication with the balloon anchor. The collar includes a first check valve and a manually actuatable pump. The first check valve is configured to control flow of air into the balloon anchor. The manually actuatable pump is coupled to the first check valve.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 9, 2021
    Inventors: Astley C. Lobo, Kevin Desjardin, Christopher A. Tokarz, Douglas M. Pattison
  • Publication number: 20210267630
    Abstract: A retention mechanism for a surgical access assembly includes a first member having a first semi-circular body with first and second ends and a second member having a second semi-circular body with first and second ends. The first end of the first member defines a first recess and the second end of the first member includes a first male connector. The first end of the second member includes a second male connector configured to be received within the first recess and the second end of the second member defines a second recess configured to receive the first male connector. When the first male connector is received within the second recess and the second male connector is received within the first recess, the first and second members are configured to frictionally engage a cannula of the surgical access assembly.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 2, 2021
    Inventors: Christopher A. Tokarz, Oksana Buyda, Douglas M. Pattison, Astley C. Lobo, Amanda M. Adinolfi, Kevin Desjardin, Jason Mickus
  • Publication number: 20210259730
    Abstract: A surgical access assembly includes elongated cannula member having proximal end portion and a distal end portion, a cannula housing coupled to the proximal end portion of the elongated cannula member, a balloon anchor coupled to the distal end portion of the elongated cannula member, and a collar having a port disposed along the elongated cannula member and in fluid communication with the balloon anchor. The port includes a first check valve, a second check valve, an actuatable button, and a release valve. The first check valve is disposed between a first end portion of the port and a second end portion of the port thereby defining a first chamber. The second check valve is coupled to the second end portion of the port and defines a second chamber between the second check valve and the first check valve. The actuatable button is configured to control flow of air into the balloon anchor. The release valve is configured to control flow of air out of the balloon anchor.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 26, 2021
    Inventors: Kevin Desjardin, Astley C. Lobo, Christopher A. Tokarz, Douglas M. Pattison, Oksana Buyda, Amanda M. Adinolfi
  • Publication number: 20210259731
    Abstract: A surgical access assembly includes a cannula including an elongated shaft and a retention anchor movable position along the elongated shaft. The retention anchor includes an annular body and a wiper disposed at a distal end of the annular body. The annular body includes a proximally-facing surface, a distally-facing surface, an outer side surface, and an inner side surface. The inner side surface defines a channel for reception and passage of the elongated shaft therethrough and the proximally-facing surface defines a proximal opening into the channel. The wiper extends radially inwardly of the inner side surface and defines a distal opening into the channel for establishing a sealed relation about the elongated shaft. The distal opening has a smaller diameter than the proximal opening.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 26, 2021
    Inventors: Christopher A. Tokarz, Kevin Desjardin, Oksana Buyda, Douglas M. Pattison, Amanda M. Adinolfi, Astley C. Lobo
  • Publication number: 20210244438
    Abstract: A surgical access system includes a clip, a cannula, and an obturator. The clip includes a first housing half and a second housing half. The first and second housing halves have first end portions pivotably coupled together and second end portions having respective first and second fastener portions. The clip is movable between an open position in which the second end portions are spaced apart from each other and a closed position in which the first and second fastener portions of the second end portions are engaged with each other. The cannula and the obturator are retained between the first and second housing halves when the clip is in the closed position.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 12, 2021
    Inventors: Kevin Desjardin, Astley C. Lobo, Christopher A. Tokarz, Oksana Buyda, Douglas M. Pattison, Alexander Y. Ueno, Amanda M. Adinolfi
  • Publication number: 20210244436
    Abstract: A surgical access device includes a cannula body and an anchor. The cannula body includes a housing, and an elongated portion extending distally from the housing. The elongated portion defines a longitudinal axis and defines a channel extending therethrough. The anchor is disposed in mechanical cooperation with the elongated portion of the cannula body and is longitudinally translatable relative to the elongated portion. The anchor defines an aperture and includes a ratchet mechanism configured to selectively lock a size of the aperture.
    Type: Application
    Filed: February 6, 2020
    Publication date: August 12, 2021
    Inventors: Kevin Desjardin, Astley C. Lobo, Douglas M. Pattison, Christopher Tokarz
  • Publication number: 20210244437
    Abstract: A surgical access device includes a cannula body and a fixation mechanism. The cannula body includes a housing, and an elongated portion extending distally from the housing and defining a longitudinal axis. The fixation mechanism includes a flange, a fixation sleeve, and a proximal sleeve. The flange is rotatable about the longitudinal axis. The fixation sleeve extends distally from the flange and radially surrounds a portion of the elongated portion of the cannula body. The proximal sleeve extends distally from the flange and radially surrounds a proximal portion of the fixation sleeve. Rotation of the flange causes a radially-expandable portion of the fixation sleeve to move between a first position defining a first gap between the radially-expandable portion and the elongated portion, and a second position defining a second, greater, gap between the radially-expandable portion and the elongated portion.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 12, 2021
    Inventors: Astley C. Lobo, Oksana Buyda, Christopher A. Tokarz, Kevin Desjardin, Amanda M. Adinolfi, Douglas M. Pattison
  • Patent number: 11076848
    Abstract: A guide member is 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: Grant
    Filed: January 7, 2019
    Date of Patent: August 3, 2021
    Assignee: Covidien LP
    Inventors: Jaroslaw T. Malkowski, Scott J. Prior, John D. Hendershot, III, Kenneth W. Horton, Christopher A. Tokarz, Danny R. Berry, Wayne A. Johnson