Patents by Inventor William M. Hartigan
William M. Hartigan 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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Publication number: 20090188889Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: ApplicationFiled: April 3, 2009Publication date: July 30, 2009Applicant: ADVANCED CARDIOVASULAR SYSTEMS, INC.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 7513907Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: April 22, 2005Date of Patent: April 7, 2009Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6908479Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: May 1, 2003Date of Patent: June 21, 2005Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Publication number: 20040098080Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: ApplicationFiled: July 24, 2003Publication date: May 20, 2004Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6689159Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: May 1, 2003Date of Patent: February 10, 2004Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Publication number: 20030208260Abstract: This invention is a medical device and a method of using it. The device is a foldable stent or stent-graft which may be percutaneously delivered with (or on) a catheter, typically an endovascular catheter, to a body cavity or lumen and then expanded. It may also be delivered or via surgical (or other) techniques. The expandable stent structure utilizes torsional members which distribute bending and folding loads in such a way that the stent is not plastically deformed. The stent's configuration allows it to be folded or otherwise compressed to a very small diameter prior to deployment without changing the length of the stent. The graft component cooperating with the stent is tubular and preferably is blood-compatible material which may, if desired, be reinforced with fibers. The stent is able to provide collapsible support for otherwise frangible graft material.Type: ApplicationFiled: May 9, 2003Publication date: November 6, 2003Inventors: Lilip Lau, Charles T. Maroney, William M. Hartigan, Sharon Lam
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Publication number: 20030195615Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: ApplicationFiled: May 1, 2003Publication date: October 16, 2003Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Publication number: 20030195612Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: ApplicationFiled: May 1, 2003Publication date: October 16, 2003Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6629991Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: June 1, 1999Date of Patent: October 7, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6626933Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: June 1, 1999Date of Patent: September 30, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6620193Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: June 1, 1999Date of Patent: September 16, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6613072Abstract: This invention is a medical device and a method of using it. The device is a foldable stent or stent-graft which may be percutaneously delivered with (or on) a catheter, typically an endovascular catheter, to a body cavity or lumen and then expanded. The stent's configuration allows it to be folded or otherwise compressed to a very small diameter prior to deployment without changing the length of the stent. The deployment procedures may involve the use of an outer sleeve to maintain the stent or stent-graft at a reduced diameter or may involve one or more external or internal “slip-lines” or “tether wires” to hold and then to release the device. A removal slip line for holding the stent in the deployable configuration can be woven along longitudinal fold line using the sack knot.Type: GrantFiled: July 18, 1997Date of Patent: September 2, 2003Assignee: Gore Enterprise Holdings, Inc.Inventors: Lilip Lau, Charles T. Maroney, William M. Hartigan, Sharon Lam
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Patent number: 6596022Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: February 8, 2001Date of Patent: July 22, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6582459Abstract: The invention is directed to a stent delivery method and system which generally includes an elongated delivery sheath and a catheter disposed within an outer lumen of the sheath having an expandable member on its distal extremity. An expandable stent is mounted on the expandable member of the catheter. The distal portion of the sheath tapers down and is tucked within an elastic cone during transport of the stent to a stenotic region. A manipulating device is provided on the proximal end of the delivery system to effect relative axial movement between the sheath and the catheter so as to expose the stent mounted on the expandable member on the catheter within a body lumen such as a coronary artery and allow the expansion of the stent by the expansion of the expandable member. The elastic cone thereby disengages from the sheath and collapses about the distal end of the catheter.Type: GrantFiled: November 17, 2000Date of Patent: June 24, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan
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Publication number: 20030097168Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: ApplicationFiled: February 8, 2001Publication date: May 22, 2003Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6527789Abstract: A stent delivery assembly includes a catheter for carrying an intravascular stent for use in a body lumen. The catheter assembly includes a rapid exchange feature in which a proximal port is spaced a relatively short distance form the distal end of the catheter and a relatively long distance from the proximal end of the catheter. A stent is mounted on the expandable member or balloon portion of the catheter.Type: GrantFiled: May 14, 1999Date of Patent: March 4, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, Farhad Khosravi, Kurt R. Klemm, Ulrich Sigwart
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Patent number: 6511504Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: November 16, 2000Date of Patent: January 28, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6488694Abstract: A stent delivery assembly includes a catheter for carrying an intravascular stent for use in a body lumen. The catheter assembly includes a rapid exchange feature in which a proximal port is spaced a relatively short distance form the distal end of the catheter and a relatively long distance from the proximal end of the catheter. A stent is mounted on the expandable member or balloon portion of the catheter.Type: GrantFiled: May 14, 1999Date of Patent: December 3, 2002Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan
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Patent number: 6485511Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: June 25, 2001Date of Patent: November 26, 2002Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen
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Patent number: 6432133Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.Type: GrantFiled: November 16, 2000Date of Patent: August 13, 2002Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Lilip Lau, William M. Hartigan, John J. Frantzen