Patents by Inventor Stephan A. DeFonzo
Stephan A. DeFonzo 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).
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Patent number: 6905480Abstract: A surgical apparatus for delivering fluid to treat a lesion comprising an elongated member having a distal tip and a plurality of slots formed in a sidewall proximal of the distal tip, a plurality of fluid delivery members positioned in the elongated member and having a lumen and at least one opening communicating with the lumen for delivering fluid to the lesion, and an actuator actuable to a first position to move the plurality of fluid delivery members from a retracted position within the elongated member to a first deployed position extending radially with respect to the elongated member and actuable to a second position to move the plurality of fluid delivery members from the first position to a second deployed position extending further radially from the elongated member.Type: GrantFiled: February 22, 2002Date of Patent: June 14, 2005Assignee: Rex Medical, L.P.Inventors: James F. McGuckin, Jr., Stephan A. DeFonzo, Alim S. Alli, Peter W. J. Hinchliffe
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Publication number: 20050096605Abstract: A valve assembly is provided for permitting the introduction of a surgical instrument into a patient's body while providing a substantial seal about the instrument. The valve assembly includes a sealing gasket assembly providing a fluid tight seal before instrument insertion, and is configured and dimensioned for accommodating an instrument and providing a substantial fluid tight seal after insertion of an instrument. The valve assembly may further include a deformable sealing member having a substantially central aperture for accommodating the instrument. The sealing member provides a substantial seal about the instrument when the instrument is passed therethrough impeding the egress of fluids and gasses through the valve assembly.Type: ApplicationFiled: December 1, 2004Publication date: May 5, 2005Inventors: David Green, Henry Bolanos, Salvatore Castro, Henry Sienkiewicz, Stephan DeFonzo, Douglas Cuny, Wayne Young
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Publication number: 20050033326Abstract: A device for closing an aperture in a vessel wall comprising an elongated member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture. The elongated member has a dimension to prevent egress of fluid through the aperture. A material forms two curved legs having ends positionable external of the vessel. The legs curve in different directions and a retention portion is formed in the material to retain the legs during placement of the elongated member inside the vessel.Type: ApplicationFiled: May 17, 2004Publication date: February 10, 2005Inventors: Richard Briganti, James McGuckin, Walter Peters, James Tarmin, Stephan DeFonzo
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Publication number: 20050015111Abstract: A vessel filter comprising a mounting section having first and second ends and a first and second filtering section. The filter is movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. In the expanded position a first end of the first filtering section converges to form a first converging region and a second end of the second filtering section converges to form a second converging region. The first converging region is positioned radially and axially inwardly of the first end of the mounting section and the second converging region is positioned radially and axially inwardly of the second end of the mounting section.Type: ApplicationFiled: October 30, 2003Publication date: January 20, 2005Inventors: James McGuckin, Richard Briganti, Stephan DeFonzo, John Thinnes
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Publication number: 20050004596Abstract: A vein filter movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. The first region of the filter has a mounting portion for mounting the vessel filter within the vessel and a first filter portion converging to form a first converging region at a first end portion, positioned radially and axially inwardly of an end of the mounting portion. The second region of the filter has a transverse dimension decreasing toward a second end portion opposite the first end portion to form a second filter portion at the second end portion on the opposing side of the filter from the first filter portion.Type: ApplicationFiled: October 30, 2003Publication date: January 6, 2005Inventors: James McGuckin, Richard Briganti, Stephan DeFonzo, John Thinnes
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Publication number: 20040204683Abstract: A surgical apparatus for delivering fluid to treat a lesion comprising an elongated member having a distal tip and a plurality of slots formed in a sidewall proximal of the distal tip, a plurality of fluid delivery members positioned in the elongated member and having a lumen and at least one opening communicating with the lumen for delivering fluid to the lesion, and an actuator actuable to a first position to move the plurality of fluid delivery members from a retracted position within the elongated member to a first deployed position extending radially with respect to the elongated member and actuable to a second position to move the plurality of fluid delivery members from the first position to a second deployed position extending further radially from the elongated member.Type: ApplicationFiled: April 30, 2004Publication date: October 14, 2004Inventors: James F. McGuckin, Stephan A. DeFonzo, Alim S. Alli, Peter W.J. Hinchliffe
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Publication number: 20040173659Abstract: An apparatus is disclosed for endoscopic application of surgical staples adapted to attach surgical mesh to body tissue in laparoscopic hernia surgery. The apparatus includes a frame, and a generally elongated endoscopic section connected to the frame and extending distally therefrom. A staple storage cartridge is removably supported on a pivotal support system at the distal end portion of the endoscopic section with each staple being configured and adapted to attach the mesh to the body tissue. An elongated pusher system formed of several assembled components and extending from the frame to the endoscopic section is provided for individually advancing at least one staple at a time distally for positioning adjacent the surgical mesh and the body tissue. The pusher system also includes a trigger system to actuate the pusher.Type: ApplicationFiled: January 8, 2004Publication date: September 9, 2004Inventors: David T. Green, Henry Bolanos, Wayne Young, Stephan A. DeFonzo, Richard A. McGarry, Dominick L. Mastri
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Publication number: 20040147902Abstract: A surgical apparatus for delivering fluid to treat a lesion comprising an elongated member having a distal tip and a plurality of slots formed in a sidewall proximal of the distal tip, a plurality of fluid delivery members positioned in the elongated member and having a lumen and at least one opening communicating with the lumen for delivering fluid to the lesion, and an actuator actuable to a first position to move the plurality of fluid delivery members from a retracted position within the elongated member to a first deployed position extending radially with respect to the elongated member and actuable to a second position to move the plurality of fluid delivery members from the first position to a second deployed position extending further radially from the elongated member.Type: ApplicationFiled: January 13, 2004Publication date: July 29, 2004Inventors: James F. McGuckin, Stephan A. DeFonzo, Alim S. Alli, Peter W.J. Hinchliffe
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Publication number: 20030195472Abstract: A valve assembly is provided for permitting the introduction of a surgical instrument into a patient's body while providing a substantial seal about the instrument. The valve assembly includes a sealing gasket assembly providing a fluid tight seal before instrument insertion, and is configured and dimensioned for accommodating an instrument and providing a substantial fluid tight seal after insertion of an instrument. The valve assembly may further include a deformable sealing member having a substantially central aperture for accommodating the instrument. The sealing member provides a substantial seal about the instrument when the instrument is passed therethrough impeding the egress of fluids and gasses through the valve assembly.Type: ApplicationFiled: May 23, 2003Publication date: October 16, 2003Inventors: David T. Green, Henry Bolanos, Salvatore Castro, Henry Sienkiewicz, Stephan A. DeFonzo, Douglas J. Cuny, Wayne P. Young
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Patent number: 6626903Abstract: A surgical biopsy apparatus for cutting tissue comprising a housing having a longitudinal axis, first and second members movable from a retracted position to an extended position with respect to the housing, a third member slidably positioned and extendable with respect to the first member, a fourth member slidably positioned and extendable with respect to the second member, and an electrocautery cutting wire slidable with respect to the third and fourth members to surround a region of tissue positioned between the third and fourth members to cut the tissue.Type: GrantFiled: April 27, 2001Date of Patent: September 30, 2003Assignee: Rex Medical, L.P.Inventors: James F. McGuckin, Jr., Peter W. J. Hinchliffe, Stephan A. Defonzo
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Patent number: 6623437Abstract: A surgical apparatus for removing a portion of tissue comprising an elongated body having a distal edge and a cutting member fixedly mounted to the elongated body and extending distally of the distal edge of the elongated body member. The cutting member has an exposed conductive distal edge forming an electrosurgical cutting surface for applying electrical energy to tissue. The cutting member resects a tubular region of tissue as the apparatus is advanced through tissue and the resected tissue extends through an opening in the cutting ring for containment within the elongated body.Type: GrantFiled: August 28, 2001Date of Patent: September 23, 2003Assignee: Rex Medical, L.P.Inventors: Peter W. J. Hinchliffe, James F. McGuckin, Jr., Stephan A. DeFonzo
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Patent number: 6569120Abstract: A valve assembly is provided for permitting the introduction of a surgical instrument into a patient's body while providing a substantial seal about the instrument. The valve assembly includes a sealing gasket assembly providing a fluid tight seal before instrument insertion, and is configured and dimensioned for accommodating an instrument and providing a substantial fluid tight seal after insertion of an instrument. The valve assembly may further include a deformable sealing member having a substantially central aperture for accommodating the instrument. The sealing member provides a substantial seal about the instrument when the instrument is passed therethrough impeding the egress of fluids and gasses through the valve assembly.Type: GrantFiled: March 7, 1997Date of Patent: May 27, 2003Assignee: United States Surgical CorporationInventors: David T. Green, Henry Bolanos, Salvatore Castro, Henry Sienkiewicz, Stephan A. DeFonzo, Douglas J. Cuny, Wayne P. Young
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Publication number: 20030045811Abstract: A surgical apparatus for removing a portion of tissue comprising an elongated body having a distal edge and a cutting member fixedly mounted to the elongated body and extending distally of the distal edge of the elongated body member. The cutting member has an exposed conductive distal edge forming an electrosurgical cutting surface for applying electrical energy to tissue. The cutting member resects a tubular region of tissue as the apparatus is advanced through tissue and the resected tissue extends through an opening in the cutting ring for containment within the elongated body.Type: ApplicationFiled: August 28, 2001Publication date: March 6, 2003Applicant: Rex MedicalInventors: Peter W. J. Hinchliffe, James F. McGuckin, Stephan A. DeFonzo
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Publication number: 20020151867Abstract: A surgical apparatus for delivering fluid to treat a lesion comprising an elongated member having a distal tip and a plurality of slots formed in a sidewall proximal of the distal tip, a plurality of fluid delivery members positioned in the elongated member and having a lumen and at least one opening communicating with the lumen for delivering fluid to the lesion, and an actuator actuable to a first position to move the plurality of fluid delivery members from a retracted position within the elongated member to a first deployed position extending radially with respect to the elongated member and actuable to a second position to move the plurality of fluid delivery members from the first position to a second deployed position extending further radially from the elongated member.Type: ApplicationFiled: February 22, 2002Publication date: October 17, 2002Applicant: Rex MedicalInventors: James F. McGuckin, Stephan A. DeFonzo, Alim S. Alli, Peter W.J. Hinchliffe
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Publication number: 20020143302Abstract: A surgical apparatus for delivering fluid to treat a lesion comprising an elongated member having a distal tip and a first and second set of openings formed in a sidewall proximal of the distal tip. The second set of openings is positioned proximally of the first set of openings. First and second set of fluid delivery members are movably positioned in the elongated for delivering fluid to the lesion. An actuator moves the fluid delivery members from a retracted position within the elongated members to a first deployed position extending radially with respect to the elongated member and moves the fluid delivery members from the first deployed position to a second deployed position extending further radially from the elongated member. The fluid delivery members are retained in the first and second deployed positions by a retention member.Type: ApplicationFiled: May 14, 2002Publication date: October 3, 2002Applicant: Rex MedicalInventors: Peter W.J. Hinchliffe, James F. McGuckin, Stephan A. Defonzo
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Publication number: 20020120238Abstract: A surgical apparatus for delivering fluid to treat a lesion comprising a housing, an elongated member extending from the housing, and a plurality of tines positioned in the housing. Each of the tines has a lumen and at least one opening communicating with the lumen for delivering fluid to the lesion. An actuator is operatively associated with the tines and actuable to a first position to move the plurality of tines from a retracted position substantially within the elongated member to a first deployed position extending from the elongated member and actuable to a second position to move the plurality of tines from the first position to a second deployed position.Type: ApplicationFiled: February 12, 2002Publication date: August 29, 2002Applicant: Rex MedicalInventors: James F. McGuckin, Stephan A. DeFonzo
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Publication number: 20020117534Abstract: An apparatus is disclosed for endoscopic application of surgical staples adapted to attach surgical mesh to body tissue in laparoscopic hernia surgery. The apparatus includes a frame, and a generally elongated endoscopic section connected to the frame and extending distally therefrom. A staple storage cartridge is removably supported on a pivotal support system at the distal end portion of the endoscopic section with each staple being configured and adapted to attach the mesh to the body tissue. An elongated pusher system formed of several assembled components and extending from the frame to the endoscopic section is provided for individually advancing at least one staple at a time distally for positioning adjacent the surgical mesh and the body tissue. The pusher system also includes a trigger system to actuate the pusher.Type: ApplicationFiled: September 20, 2001Publication date: August 29, 2002Inventors: David T. Green, Henry Bolanos, Wayne Young, Stephan A. DeFonzo, Richard A. McGarry, Dominick L. Mastri
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Publication number: 20010047169Abstract: A surgical biopsy apparatus for cutting tissue comprising a housing having a longitudinal axis, first and second members movable from a retracted position to an extended position with respect to the housing, a third member slidably positioned and extendable with respect to the first member, a fourth member slidably positioned and extendable with respect to the second member, and an electrocautery cutting wire slidable with respect to the third and fourth members to surround a region of tissue positioned between the third and fourth members to cut the tissue.Type: ApplicationFiled: April 27, 2001Publication date: November 29, 2001Inventors: James F. McGuckin, Peter W. J. Hinchliffe, Stephan A. DeFonzo
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Patent number: 6193651Abstract: A surgical retractor comprising a base adapted to lie on the patient's skin, a handle slidably mounted with respect to the base, a tissue retracting blade extending from the handle, and a locking member movable from at least a first position to a second position to retain the tissue retracting blade in a selected position. A light guide illuminates the surgical site during use. An angle adapter can be mounted to the base to increase the angle of the tissue retracting blade with respect to the tissue. A method for accessing the saphenous vein to facilitate harvesting the vein is also disclosed comprising the steps of making a small incision in the leg of a patient, positioning a retractor on a patient's leg such that a retractor blade extends into the incision and a base lies on the surface of the patient's leg and pulling the retractor blade away from the patient to lift the tissue away from the underlying saphenous vein.Type: GrantFiled: February 26, 1997Date of Patent: February 27, 2001Assignee: United States Surgical CorporationInventor: Stephan A. DeFonzo
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Patent number: D417276Type: GrantFiled: July 10, 1996Date of Patent: November 30, 1999Assignee: United States Surgical CorporationInventor: Stephan A. DeFonzo