Patents by Inventor Graig L. Kveen
Graig L. Kveen 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: 6746479Abstract: The invention is directed to an expandable stent which is longitudinally flexible in both the unexpanded and expanded conditions. The stent includes spiral structures which at least partially unwind upon expansion of the stent to limit stent recoil. Regions of low strain in the stent during expansion are provided by the spiral structures.Type: GrantFiled: September 17, 2001Date of Patent: June 8, 2004Assignee: SciMed Life Systems, Inc.Inventors: Timothy G. J. Ehr, Graig L. Kveen
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Publication number: 20030225452Abstract: A stent comprises at least one band of interconnected cells selected from the group consisting of S-shaped cells and mirror image S-shaped cells. Each cell has a top end and a bottom end. The top end of each cell is attached to the bottom end of an adjacent cell in the band. Adjacent bands may abut one another or may be joined by connecting members.Type: ApplicationFiled: June 16, 2003Publication date: December 4, 2003Applicant: SciMed Life Systems, Inc.Inventors: Burns P. Doran, Graig L. Kveen, Timothy J. Ley
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Patent number: 6602283Abstract: A stent comprises at least one band of interconnected cells selected from the group consisting of S-shaped cells and mirror image S-shaped cells. Each cell has a top end and a bottom end. The top end of each cell is attached to the bottom end of an adjacent cell in the band. Adjacent bands may abut one another or may be joined by connecting members.Type: GrantFiled: April 6, 2001Date of Patent: August 5, 2003Assignee: SciMed Life Systems, Inc.Inventors: Burns P. Doran, Graig L. Kveen, Timothy J. Ley
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Publication number: 20030120335Abstract: Improved stent configurations exhibiting limited recoil, resistance to compression and improved longitudinal flexibility are disclosed. The stent comprised of a plurality of annular elements aligned to form a cylindrical stent body. The annular elements are comprised of a plurality of open, generally boomerang-shaped segments interconnected top-to-bottom around each of the annular elements. Adjacent annular elements are interconnected by interconnecting element.Type: ApplicationFiled: December 17, 2002Publication date: June 26, 2003Applicant: SCIMED LIFE SYSTEMS, INC.Inventors: Timothy G.J. Ehr, Graig L. Kveen
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Publication number: 20030055489Abstract: A radially expandable stent comprising a plurality of spaced band-like elements and intersecting links is disclosed. The band-like elements have a generally serpentine configuration to provide continuous waves of generally sinusoidal character to each band-like element. The waves are characterized by a plurality of peaks and troughs taking a generally longitudinal direction along the cylinder such that the waves in the band-like elements open as the stent is expanded from a first diameter to a second diameter. The intersecting links are substantially U-shaped and terminate in first and second shanks. The first shank of a link emanates from a region between a peak and trough on a band-like element and the second shank of the link emanates from a region between a peak and trough on an adjacent band-like element.Type: ApplicationFiled: November 4, 2002Publication date: March 20, 2003Applicant: SCIMED LIFE SYSTEMS, INC.Inventors: Graig L. Kveen, Timothy G. J. Ehr, Brian J. Brown
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Publication number: 20030050690Abstract: An expandable tubular reinforcing member used for body lumens such as blood vessels, the reinforcing member being formed of a continuous elongated helical element comprised of spaced undulating portions forming end loop portions and including a plurality of curvilinear connector elements extending between and interconnecting at least some of the adjacent undulating portions of the helical element over its length.Type: ApplicationFiled: October 25, 2002Publication date: March 13, 2003Inventors: Graig L. Kveen, Burns P. Doran, Robert T. Judnitch
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Patent number: 6488703Abstract: An expandable tubular reinforcing member used for body lumens such as blood vessels, the reinforcing member being formed of a continuous elongated helical element comprised of spaced undulating portions forming end loop portions and including a plurality of curvilinear connector elements extending between and interconnecting at least some of the adjacent undulating portions of the helical element over its length.Type: GrantFiled: March 28, 2000Date of Patent: December 3, 2002Assignee: Scimed Life Systems, Inc.Inventors: Graig L. Kveen, Burns P. Doran, Robert T. Judnitch
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Patent number: 6478816Abstract: A radially expandable stent comprising a plurality of spaced band-like elements and intersecting links is disclosed. The band-like elements have a generally serpentine configuration to provide continuous waves of generally sinusoidal character to each band-like element. The waves are characterized by a plurality of peaks and troughs taking a generally longitudinal direction along the cylinder such that the waves in the band-like elements open as the stent is expanded from a first diameter to a second diameter. The intersecting links are substantially U-shaped and terminate in first and second shanks. The first shank of a link emanates from a region between a peak and trough on a band-like element and the second shank of the link emanates from a region between a peak and trough on an adjacent band-like element.Type: GrantFiled: July 13, 2001Date of Patent: November 12, 2002Assignee: Scimed Life Systems, Inc.Inventors: Graig L. Kveen, Timothy G. J. Ehr, Brian J. Brown
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Patent number: 6471720Abstract: Improved stent configurations exhibiting limited recoil, resistance to compression and improved longitudinal flexibility are disclosed. The stent comprised of a plurality of annular elements aligned to form a cylindrical stent body. The annular elements are comprised of a plurality of open, generally boomerang-shaped segments interconnected top-to-bottom around each of the annular elements. Adjacent annular elements are interconnected by interconnecting element.Type: GrantFiled: November 7, 2000Date of Patent: October 29, 2002Assignee: Scimed Life Systems, Inc.Inventors: Timothy G. J. Ehr, Graig L. Kveen
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Publication number: 20020156524Abstract: Improved stent configurations exhibiting limited recoil, resistance to compression and improved longitudinal flexibility are disclosed. The stent comprised of a plurality of annular elements aligned to form a cylindrical stent body. The annular elements are comprised of a plurality of open, generally boomerang-shaped segments interconnected top-to-bottom around each of the annular elements. Adjacent annular elements are interconnected by interconnecting element.Type: ApplicationFiled: June 6, 2002Publication date: October 24, 2002Applicant: SCIMED LIFE SYSTEMS, INC.Inventors: Timothy G.J. Ehr, Graig L. Kveen
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Publication number: 20020151962Abstract: Improved stent configurations exhibiting limited recoil, resistance to compression and improved longitudinal flexibility.Type: ApplicationFiled: May 31, 2002Publication date: October 17, 2002Applicant: SCIMED LIFE SYSTEMS, INC.Inventors: Timothy J. Ley, Graig L. Kveen, Timothy G.J. Ehr, Brian J. Brown, David L. Friesen
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Publication number: 20020147493Abstract: A stent comprises at least one band of interconnected cells selected from the group consisting of S-shaped cells and mirror image S-shaped cells. Each cell has a top end and a bottom end. The top end of each cell is attached to the bottom end of an adjacent cell in the band. Adjacent bands may abut one another or may be joined by connecting members.Type: ApplicationFiled: April 6, 2001Publication date: October 10, 2002Inventors: Burns P. Doran, Graig L. Kveen, Timothy J. Ley
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Publication number: 20020143391Abstract: A generally cylindrical, radially expandable stent may be composed of a plurality of interconnected multibonate cell structures. The cells have three or more enlarged end portions radiating from a common center within the cell. The cells may be of tribonate or higher order multibonate configuration. Stents composed up of a series of generally multibonate cell elements are also disclosed.Type: ApplicationFiled: April 23, 2002Publication date: October 3, 2002Applicant: SciMed Life Systems, Inc.Inventors: Timothy J. Ley, Graig L. Kveen, Burns P. Doran
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Patent number: 6416538Abstract: Improved stent configurations exhibiting limited recoil, resistance to compression and improved longitudinal flexibility.Type: GrantFiled: May 21, 1999Date of Patent: July 9, 2002Assignee: Scimed Life Systems, Inc.Inventors: Timothy J. Ley, Graig L. Kveen, Timothy G. J. Ehr, Brian J. Brown, David L. Friesen
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Patent number: 6395020Abstract: A generally cylindrical, radially expandable stent may be composed of a plurality of interconnected multibonate cell structures. The cells have three or more enlarged end portions radiating from a common center within the cell. The cells may be of tribonate or higher order multibonate configuration. Stents composed up of a series of generally multibonate cell elements are also disclosed.Type: GrantFiled: March 3, 1999Date of Patent: May 28, 2002Assignee: SciMed Life Systems, Inc.Inventors: Timothy J. Ley, Graig L. Kveen, Burns P. Doran
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Publication number: 20020055770Abstract: In one embodiment of the invention, a stent may be provided comprising a first undulating band comprising a series of alternating first peaks and first troughs and a second undulating band comprising a series of alternating second peaks and second troughs. The first undulating band has a first wavelength and a first amplitude and the second undulating band has a second wavelength and a second amplitude where the second amplitude is different from the first amplitude and the second wavelength is different from the first wavelength. A plurality of longitudinally oriented first connectors extend between the first peaks and second peaks.Type: ApplicationFiled: September 21, 2001Publication date: May 9, 2002Inventors: Burns P. Doran, Jason Todd Lenz, Graig L. Kveen, Timothy Samuel Girton, James F. Hemerick, Timothy J. Ley
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Publication number: 20020010507Abstract: The invention is directed to an expandable stent which is longitudinally flexible in both the unexpanded and expanded conditions. The stent includes spiral structures which at least partially unwind upon expansion of the stent to limit stent recoil. Regions of low strain in the stent during expansion are provided by the spiral structures.Type: ApplicationFiled: September 17, 2001Publication date: January 24, 2002Inventors: Timothy G. J. Ehr, Graig L. Kveen
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Patent number: 6334870Abstract: The invention is directed to an expandable stent which is longitudinally flexible in both the unexpanded and expanded conditions. The stent includes spiral structures which at least partially unwind upon expansion of the stent to limit stent recoil. Regions of low strain in the stent during expansion are provided by the spiral structures.Type: GrantFiled: September 3, 1999Date of Patent: January 1, 2002Assignee: SciMed Life Systems, Inc.Inventors: Timothy G. J. Ehr, Graig L. Kveen
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Publication number: 20010044653Abstract: A radially expandable stent comprising a plurality of spaced band-like elements and intersecting links is disclosed. The band-like elements have a generally serpentine configuration to provide continuous waves of generally sinusoidal character to each band-like element. The waves are characterized by a plurality of peaks and troughs taking a generally longitudinal direction along the cylinder such that the waves in the band-like elements open as the stent is expanded from a first diameter to a second diameter. The intersecting links are substantially U-shaped and terminate in first and second shanks. The first shank of a link emanates from a region between a peak and trough on a band-like element and the second shank of the link emanates from a region between a peak and trough on an adjacent band-like element.Type: ApplicationFiled: July 13, 2001Publication date: November 22, 2001Inventors: Graig L. Kveen, Timothy G.J. Ehr, Brian J. Brown
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Patent number: 6261319Abstract: A radially expandable stent comprising a plurality of spaced band-like elements and intersecting links is disclosed. The band-like elements have a generally serpentine configuration to provide continuous waves of generally sinusoidal character to each band-like element. The waves are characterized by a plurality of peaks and troughs taking a generally longitudinal direction along the cylinder such that the waves in the band-like elements open as the stent is expanded from a first diameter to a second diameter. The intersecting links are substantially U-shaped and terminate in first and second shanks. The first shank of a link emanates from a region between a peak and trough on a band-like element and the second shank of the link emanates from a region between a peak and trough on an adjacent band-like element.Type: GrantFiled: July 8, 1998Date of Patent: July 17, 2001Assignee: Scimed Life Systems, Inc.Inventors: Graig L. Kveen, Timothy G. J. Ehr, Brian J. Brown