Patents by Inventor Thomas Wenchell

Thomas Wenchell 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: 20120123457
    Abstract: A method for performing a surgical procedure is disclosed which uses an anvil delivery system including an anvil assembly, a flexible tube having a first end portion and a second end portion, and a fitting to deliver the anvil assembly to a desired site. The method includes the steps of cutting a second end portion of the flexible tube, attaching a fitting to the second end portion of the flexible tube which has been cut, inserting the insertion tip into tissue, advancing the insertion tip along with the flexible tube and anvil assembly to the desired site within a patient's body, and removing the flexible tube from the anvil assembly and from the desired site leaving the anvil assembly in a patient's body at the desired site.
    Type: Application
    Filed: January 25, 2012
    Publication date: May 17, 2012
    Inventors: Keith L. Milliman, Thomas Wenchell, Philip C. Roy
  • Publication number: 20120111921
    Abstract: A surgical stapling device for sequentially applying a plurality of fasteners to body tissue and simultaneously incising tissue is provided. The surgical stapling device is adapted to receive disposable loading units having staples in linear rows whose length can be between about 30 mm and 60 mm. The disposable loading unit includes a proximal body portion, a mounting assembly and a tool assembly. The mounting assembly is secured to the proximal end of the tool assembly and pivotally mounted about a pivot axis to the distal end of the proximal body portion. A support member or blow-out plate assembly is positioned on opposite sides of the pivot avis and extends between the proximal body portion and the mounting assembly.
    Type: Application
    Filed: January 11, 2012
    Publication date: May 10, 2012
    Applicant: Tyco Healthcare Group LP
    Inventors: Thomas Wenchell, Stanislaw Marczyk, Kenneth H. Whitfield, Roman Czernik, Henry E. Holsten, Frank C. Maffei
  • Patent number: 8172122
    Abstract: An end effector for a surgical fastener applying instrument including a first jaw member and a second jaw member. The second jaw member includes first and second cartridges each containing a plurality of surgical fasteners, wherein each of the first and second cartridges is configured to move independently with respect to the first jaw member between a proximal position and a distal position.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: May 8, 2012
    Assignee: Tyco Healthcare Group LP
    Inventors: Dino Kasvikis, Danyel J. (Tarinelli) Racenet, David Farascioni, Thomas Wenchell, Philip C. Roy
  • Publication number: 20120104073
    Abstract: A surgical tilt anvil assembly including a rod and a head assembly including an anvil plate having staple deforming pockets. The head assembly is pivotally secured to the rod and pivotal in relation to the rod between a first tilted position, a non-tilted position and a second different tilted position. The head assembly passes from the first tilted position, through the non-tilted position to the second tilted position.
    Type: Application
    Filed: January 4, 2012
    Publication date: May 3, 2012
    Inventors: Keith L. Milliman, Thomas Wenchell, Philip C. Roy
  • Patent number: 8157830
    Abstract: A surgical apparatus is provided including a disposable loading unit selectively operatively engagable within a distal end of a first half-section; and a wound treatment material applicator assembly for delivering wound treatment material to the target surgical site. The disposable loading unit includes a cartridge; a plurality of deployable needles supported within the cartridge, wherein each needle includes a lumen extending therethrough and at least one hole formed in an outer periphery thereof; and an actuation member translatably disposed within the cartridge for delivering a driving force to each needle to deploy the needles from the cartridge. The applicator assembly includes a first and second reservoir supported on the distal end of a respective first and second half-section; and a source of wound treatment material in fluid communication with each reservoir.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: April 17, 2012
    Assignee: Tyco Healthcare Group LP
    Inventor: Thomas Wenchell
  • Patent number: 8132703
    Abstract: A surgical stapling instrument including a handle assembly, an elongated body portion extending distally from the handle assembly, and a head portion. The handle assembly includes a firing trigger and a firing indicator. The firing trigger is movable between a first non-actuated position and a second actuated position. The head portion is disposed adjacent a distal portion of the elongated body portion and includes an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. Engagement structure of the firing trigger moves the firing indicator from a first position to a second position when the firing trigger is moved from its first non-actuated position toward its second actuated position.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: March 13, 2012
    Assignee: Tyco Healthcare Group, LP
    Inventors: Keith L. Milliman, Thomas R. Hessler, Stephen R. Paul, Thomas Wenchell
  • Patent number: 8123682
    Abstract: A surgical access apparatus includes a liner base and an access housing for positioning outside the body. The liner base includes an inner member adapted for insertion through an opening within body tissue for positioning within the body; a sleeve member connected to the inner member and dimensioned to extend from the inner member through the opening within the body tissue, and a plurality of tensioning elements connected to the inner member and associated with the sleeve member to impart a tensioning effect on the sleeve member. The access housing includes a first element and a second element. The second element is operatively connected to the tensioning elements and adapted for rotational movement relative to the first member to cause the tensioning elements to displace the inner member toward the access housing and to cause the sleeve member to engage and retract tissue defining the opening within the body.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: February 28, 2012
    Assignee: Tyco Healthcare Group LP
    Inventor: Thomas Wenchell
  • Publication number: 20120041271
    Abstract: An access apparatus for use during a surgical procedure to provide access to the interior of the body includes an access member defining a longitudinal axis and having a proximal end for being disposed at an exterior side of the body and a distal end for extending into the interior of the body. The access member has a bore therethrough dimensioned to permit passage of an object. A seal is disposed within the bore of the access member. The seal includes a fabric material and an elastomeric material, and defines an internal passageway dimensioned to form a substantial sealing relation with an object inserted therethrough.
    Type: Application
    Filed: October 28, 2011
    Publication date: February 16, 2012
    Inventors: Thomas Wenchell, Skott Greenhalgh, David Farascioni
  • Patent number: 8113408
    Abstract: A surgical stapling device for sequentially applying a plurality of fasteners to body tissue and simultaneously incising tissue is provided. The surgical stapling device is adapted to receive disposable loading units having staples in linear rows whose length can be between about 30 mm and 60 mm. The disposable loading unit includes a proximal body portion, a mounting assembly and a tool assembly. The mounting assembly is secured to the proximal end of the tool assembly and pivotally mounted about a pivot axis to the distal end of the proximal body portion. A support member or blow-out plate assembly is positioned on opposite sides of the pivot avis and extends between the proximal body portion and the mounting assembly. An axial drive assembly is slidably positioned between the support members and is translatable through the cartridge assembly to eject staples from the cartridge assembly.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: February 14, 2012
    Assignee: Tyco Healthcare Group LP
    Inventors: Thomas Wenchell, Stanislaw Marczyk, Kenneth H. Whitfield, Roman Czernik, Henry E. Holsten, Frank C. Maffei
  • Patent number: 8109426
    Abstract: A surgical tilt anvil assembly including a rod and a head assembly including an anvil plate having staple deforming pockets. The head assembly is pivotally secured to the rod and pivotal in relation to the rod between a first tilted position, a non-tilted position and a second different tilted position. The head assembly passes from the first tilted position, through the non-tilted position to the second tilted position.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: February 7, 2012
    Assignee: Tyco Healthcare Group LP
    Inventors: Keith L. Milliman, Thomas Wenchell, Philip C. Roy
  • Publication number: 20120012639
    Abstract: A surgical stapling device for sequentially applying a plurality of fasteners to body tissue and simultaneously incising tissue is provided. The surgical stapling device is adapted to receive disposable loading units having staples in linear rows whose length can be between about 30 mm and 60 mm. The disposable loading unit includes a proximal body portion, a mounting assembly and a tool assembly. The mounting assembly is secured to the proximal end of the tool assembly and pivotally mounted about a pivot axis to the distal end of the proximal body portion. A support member or blow-out plate assembly is positioned on opposite sides of the pivot avis and extends between the proximal body portion and the mounting assembly.
    Type: Application
    Filed: September 6, 2011
    Publication date: January 19, 2012
    Applicant: Tyco Healthcare Group LP
    Inventors: Thomas Wenchell, Stanislaw Marczyk, Kenneth H. Whitfield, Roman Czernik, Henry E. Holsten, Frank C. Maffei
  • Patent number: 8070731
    Abstract: An access apparatus for use during a surgical procedure to provide access to the interior of the body includes an access member defining a longitudinal axis and having a proximal end for being disposed at an exterior side of the body and a distal end for extending into the interior of the body. The access member has a bore therethrough dimensioned to permit passage of an object. A seal is disposed within the bore of the access member. The seal includes a fabric material and an elastomeric material, and defines an internal passageway dimensioned to form a substantial sealing relation with an object inserted therethrough.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: December 6, 2011
    Assignee: Tyco Healthcare Group LP
    Inventors: Thomas Wenchell, Skott Greenhalgh, David Farascioni
  • Publication number: 20110284616
    Abstract: An end effector for a surgical fastener applying instrument including a first jaw member and a second jaw member. The second jaw member includes first and second cartridges each containing a plurality of surgical fasteners, wherein each of the first and second cartridges is configured to move independently with respect to the first jaw member between a proximal position and a distal position.
    Type: Application
    Filed: August 4, 2011
    Publication date: November 24, 2011
    Inventors: Dino Kasvikis, Danyel J. (Tarinelli) Racenet, David Farascioni, Thomas Wenchell, Philip C. Roy
  • Patent number: 8062305
    Abstract: A surgical portal apparatus for permitting introduction of a surgical object within tissue includes a portal member defining a longitudinal axis and having leading and trailing ends. The portal member includes an outer wall defining a longitudinal opening dimensioned for reception of a surgical object. At least one projection is disposed on the outer wall of the portal member and extends in at least a radial direction relative to the longitudinal axis. The at least one projection is dimensioned and configured for engaging tissue to resist movement of the portal member within tissue. The at least one projection defines a recess for receiving tissue portions adjacent thereto. A plurality of projections is spaced about the outer wall of the portal member. At least two of the projections are circumferentially spaced relative to the longitudinal axis and/or at least two of the projections are longitudinally spaced relative to the longitudinal axis.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: November 22, 2011
    Assignee: Tyco Healthcare Group LP
    Inventor: Thomas Wenchell
  • Publication number: 20110282363
    Abstract: A surgical instrument for surgically joining tissue is disclosed. The surgical instrument includes a handle portion, an endoscopic portion, a pair of jaw members and at least one flexible member attachment structure. The endoscopic portion extends distally from the handle portion and defines a first longitudinal axis. The pair of jaw members is disposed adjacent a distal end of the endoscopic portion and extends generally distally therefrom. At least one of the jaw members is movable with respect to the other between an open position and an approximated position for engaging body tissue therebetween. The flexible member attachment structure is disposed in mechanical cooperation with at least one jaw member and is configured to facilitate the attachment of a flexible member thereto.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 17, 2011
    Inventors: Dino Kasvikis, Joshua Snow, Thomas Wenchell
  • Patent number: 8033440
    Abstract: A surgical stapling device for sequentially applying a plurality of fasteners to body tissue and simultaneously incising tissue is provided. The surgical stapling device is adapted to receive disposable loading units having staples in linear rows whose length can be between about 30 mm and 60 mm. The disposable loading unit includes a proximal body portion, a mounting assembly and a tool assembly. The mounting assembly is secured to the proximal end of the tool assembly and pivotally mounted about a pivot axis to the distal end of the proximal body portion. A support member or blow-out plate assembly is positioned on opposite sides of the pivot avis and extends between the proximal body portion and the mounting assembly.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: October 11, 2011
    Assignee: Tyco Healthcare Group LP
    Inventors: Thomas Wenchell, Stanislaw Marczyk, Kenneth H. Whitfield, Roman Czernik, Henry E. Holsten, Frank C. Maffei
  • Patent number: 8016176
    Abstract: An end effector for a surgical fastener applying instrument including a first jaw member and a second jaw member. The second jaw member includes first and second cartridges each containing a plurality of surgical fasteners, wherein each of the first and second cartridges is configured to move independently with respect to the first jaw member between a proximal position and a distal.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: September 13, 2011
    Assignee: Tyco Healthcare Group, LP
    Inventors: Dino Kasvikis, Danyel J. (Tarinelli) Racenet, David Farascioni, Thomas Wenchell, Philip C. Roy
  • Patent number: 8016849
    Abstract: A surgical apparatus is provided including a disposable loading unit selectively operatively engagable within a distal end of a first half-section; and a wound treatment material applicator assembly for delivering wound treatment material to the target surgical site. The disposable loading unit includes a cartridge; a plurality of deployable needles supported within the cartridge, wherein each needle includes a lumen extending therethrough and at least one hole formed in an outer periphery thereof; and an actuation member translatably disposed within the cartridge for delivering a driving force to each needle to deploy the needles from the cartridge. The applicator assembly includes a first and second reservoir supported on the distal end of a respective first and second half-section; and a source of wound treatment material in fluid communication with each reservoir.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: September 13, 2011
    Assignee: Tyco Healthcare Group LP
    Inventor: Thomas Wenchell
  • Publication number: 20110201891
    Abstract: A surgical seal assembly for use with a surgical access device includes a seal housing defining a central longitudinal axis and having a longitudinal passage dimensioned to permit passage of a surgical instrument through the seal housing, a gimbal mount disposed within the seal housing and having a gimbal seal member defining an aperture for substantial sealed reception of the surgical instrument, and an interface seal disposed within the seal housing. The gimbal mount is adapted for angular movement relative to the central longitudinal axis upon angulation of the surgical instrument whereby the gimbal seal member substantially maintains the sealed reception of the surgical instrument. The interface seal includes an interface seal member extending at least along the longitudinal axis and being in substantial contacting sealing relation with the gimbal mount. The interface seal member is adapted to maintain the sealing relation with the gimbal mount upon angular movement thereof.
    Type: Application
    Filed: March 18, 2011
    Publication date: August 18, 2011
    Inventors: Robert C. Smith, Thomas Wenchell
  • Publication number: 20110174425
    Abstract: A surgical access system includes a tubular member defining a longitudinal axis and having an axial lumen. The tubular member includes a braided material adapted to expand from a first initial condition having a first cross-sectional dimension to a second expanded condition having a second-cross sectional dimension greater than the first cross-sectional dimension. The tubular member defines an oblique end surface. An access housing is mounted to the tubular member. The access housing is dimensioned for engagement by the user. A process for manufacturing a surgical access device is also disclosed.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 21, 2011
    Inventors: Miguel Moreno, Richard D. Gresham, Thomas Wenchell