Patents by Inventor Gene A. Stellon

Gene A. Stellon 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: 20070197972
    Abstract: A seal assembly is provided for reception of an elongated surgical instrument, which comprises a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner, the seal member further including a peripheral flange element which contacts a surface of the body to form a contact seal therewith; and a fabric layer juxtaposed relative to the resilient material. The seal assembly may further include a coating applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein.
    Type: Application
    Filed: April 11, 2007
    Publication date: August 23, 2007
    Inventors: David Racenet, Gene Stellon, William Vumback, Joseph Pasqualucci
  • Patent number: 7244244
    Abstract: A seal assembly is provided for reception of an elongated surgical instrument, which comprises a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner, the seal member further including a peripheral flange element which contacts a surface of the body to form a contact seal therewith; and a fabric layer juxtaposed relative to the resilient material. The seal assembly may further include a coating applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: July 17, 2007
    Assignee: Tyco Healthcare Group LP
    Inventors: David C. Racenet, Gene A. Stellon, William J. Vumback, Joseph Pasqualucci
  • Publication number: 20060041232
    Abstract: A surgical access apparatus includes an access member dimensioned for insertion within tissue and having a longitudinal opening to permit introduction of a surgical object through the access member to perform a procedure on underlying tissue. A seal member is mounted across the longitudinal opening of the access member and has an internal portion defining an aperture for forming a substantial seal about the surgical object introduced through the longitudinal opening of the access member.
    Type: Application
    Filed: July 19, 2005
    Publication date: February 23, 2006
    Inventors: Ralph Stearns, David Racenet, Gene Stellon
  • Publication number: 20050212221
    Abstract: A seal assembly for use with an access device includes a seal housing defining a central longitudinal axis, an inner wall and an outer wall. The inner wall defines a longitudinal opening to permit passage of instrumentation through the seal housing. A gimbal mount is at least partially accommodated within a space defined between the inner wall and the outer wall of the seal housing. The gimbal mount includes a seal member defining an aperture for substantial sealed reception of a surgical instrument. The gimbal mount is adapted for angular movement relative to the central longitudinal axis upon angulation of the surgical instrument while substantially maintaining the sealed reception of the surgical instrument.
    Type: Application
    Filed: March 1, 2005
    Publication date: September 29, 2005
    Inventors: Robert Smith, David Racenet, Gene Stellon
  • Publication number: 20050085830
    Abstract: A right angle clip applier apparatus including a distal clip applying mechanism and a proximal advancing mechanism positioned in a handle assembly. The clip applying mechanism includes a feed rod interfacing with a cartridge for the advancing and applying of clips on tissue portions. A plurality of clips are enclosed in the apparatus. The advancing mechanism is actuated by a lever in the handle assembly which creates a drive force that repositions the feed rod and clips. Each actuation of the lever applies a first clip and advances clips to a new position in a distal direction. The clip applying mechanism can be utilized at any angle and can be rotated through 360 degrees while holding the handle in a fixed position. An empty clip indicator is provided.
    Type: Application
    Filed: December 2, 2003
    Publication date: April 21, 2005
    Inventors: Adam Lehman, Gene Stellon, Ramiro Cabrera, Ralph Stearns
  • Publication number: 20040147949
    Abstract: A molded trocar latch apparatus for locking a safety shield in position is described. The molded latch includes a trocar housing and a shield. The housing has a first monolithically formed cap and a monolithically formed base. A latch mechanism, including a slider and a latch, may be monolithically formed with either the base or the cap of the housing. The slider and the latch are operatively connected to move the latch between a locked and an unlocked position. The latch in the locked position is configured to engage a ledge on the shield and at least stop further proximal movement of the shield that could unintentionally expose the blade of the trocar.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Inventors: Gene Stellon, David C. Racenet, Ralph A. Stearns, Adam Lehman
  • Publication number: 20040111060
    Abstract: A seal assembly for reception of an elongated surgical instrument is provided which includes a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material. A coating may be applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process.
    Type: Application
    Filed: November 20, 2003
    Publication date: June 10, 2004
    Inventors: David C. Racenet, Gene A. Stellon, William J. Vumback, Joseph Pasqualucci
  • Publication number: 20040059297
    Abstract: A seal assembly for reception of an elongated surgical instrument is provided which includes a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material. A coating may be applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process.
    Type: Application
    Filed: September 24, 2003
    Publication date: March 25, 2004
    Inventors: David C. Racenet, Gene A. Stellon, William J. Vumback, Joseph Pasqualucci
  • Patent number: 6702787
    Abstract: A seal assembly for reception of an elongated surgical instrument is provided which includes a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material. A coating may be applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: March 9, 2004
    Assignee: Tyco Healthcare Group LP
    Inventors: David C. Racenet, Gene A. Stellon, William J. Vumback, Joseph Pasqualucci
  • Publication number: 20030040711
    Abstract: A seal assembly is provided for reception of an elongated surgical instrument, which comprises a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner, the seal member further including a peripheral flange element which contacts a surface of the body to form a contact seal therewith; and a fabric layer juxtaposed relative to the resilient material. The seal assembly may further include a coating applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein.
    Type: Application
    Filed: October 9, 2002
    Publication date: February 27, 2003
    Inventors: David C. Racenet, Gene A. Stellon, William J. Vumback, Joseph Pasqualucci
  • Patent number: 6482181
    Abstract: A seal assembly is provided for reception of an elongated surgical instrument, which comprises a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner, the seal member further including a peripheral flange element which contacts a surface of the body to form a contact seal therewith; and a fabric layer juxtaposed relative to the resilient material. The seal assembly may further include a coating applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: November 19, 2002
    Assignee: Tyco Healthcare Group LP
    Inventors: David C. Racenet, Gene A. Stellon, William J. Vumback, Joseph Pasqualucci
  • Publication number: 20020156432
    Abstract: A seal assembly for reception of an elongated surgical instrument is provided which includes a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material. A coating may be applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process.
    Type: Application
    Filed: June 6, 2002
    Publication date: October 24, 2002
    Inventors: David C. Racenet, Gene A. Stellon, William J. Vumback, Joseph Pasqualucci
  • Patent number: 6432085
    Abstract: A surgical access device for permitting introduction of instrumentation within tissue, includes an elongate member defining a longitudinal axis and proximal and distal ends, a first peripheral projection disposed on an outer wall of the elongate member and defining a proximal ledge dimensioned to resist movement of the elongate member in a first longitudinal direction corresponding to a withdrawal direction of the elongate member with respect to the tissue, a second peripheral projection disposed on the outer wall of the elongate member proximal of the first peripheral projection and defining a distal ledge dimensioned to resist movement of the elongate member in a second longitudinal direction corresponding to an insertion direction of the elongate member with respect to the tissue whereby the first and second peripheral projections cooperate to retain the elongate member within the tissue.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: August 13, 2002
    Assignee: Tyco Healthcare Group LP
    Inventors: Gene Stellon, David C. Racenet
  • Publication number: 20020026207
    Abstract: A trocar system including a cannula and an obturator assembly being at least partially insertable through the cannula. The obturator assembly including a housing, a penetrating tip disposed at a distal end, an elongated shield including a guard extending from a shaft are movable relative to the penetrating tip, and a latch mechanism disposed generally within the housing. The latch mechanism facilitates changing the configuration of the obturator assembly between a fixed-shield orientation, wherein at least a portion of the guard is maintained to extend at least partially distal of the penetrating tip to prevent puncturing of tissue by the penetrating tip, to a non-fixed shield orientation whereby upon application of force to the distal end of the obturator assembly, the guard and penetrating tip are permitted to move relative one another to facilitate puncturing of tissue by the penetrating tip.
    Type: Application
    Filed: October 16, 2001
    Publication date: February 28, 2002
    Applicant: United States Surgical Corporation, a division of Tyco Healthcare Group LP.
    Inventors: Gene Stellon, David C. Racenet, Ralph A. Stearns, Adam Lehman
  • Patent number: 6319266
    Abstract: A trocar system including a cannula and an obturator assembly being at least partially insertable through the cannula. The obturator assembly including a housing, a penetrating tip disposed at a distal end, an elongated shield including a guard extending from a shaft are movable relative to the penetrating tip, and a latch mechanism disposed generally within the housing. The latch mechanism facilitates changing the configuration of the obturator assembly between a fixed-shield orientation, wherein at least a portion of the guard is maintained to extend at least partially distal of the penetrating tip to prevent puncturing of tissue by the penetrating tip, to a non-fixed shield orientation whereby upon application of force to the distal end of the obturator assembly, the guard and penetrating tip are permitted to move relative one another to facilitate puncturing of tissue by the penetrating tip.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: November 20, 2001
    Assignee: United States Surgical Corporation
    Inventors: Gene Stellon, David C. Racenet, Ralph A. Stearns, Adam Lehman