Patents by Inventor Steve Bigus
Steve Bigus 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: 20040133261Abstract: A catheter assembly for delivering an endoprosthesis within a body lumen. A delivery catheter assembly is provided which includes a stent with biocompatible material thereon for preventing the stent from expanding or otherwise dislodging from the catheter. The stent with biocompatible material is secured to an expandable member of a delivery catheter, whereby inflation of the expandable member causes the biocompatible material to fail, thereby permitting the stent to expand and deploy in a body lumen.Type: ApplicationFiled: July 25, 2003Publication date: July 8, 2004Inventors: Steve Bigus, Orlando M. Padilla, Brent Belding
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Patent number: 6749628Abstract: The present invention provides for an improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The present invention includes a trap door stent design, a stent delivery catheter assembly, an apparatus for crimping the stent and the method for crimping the stent onto the catheter assembly, and the method for delivering and implanting the stent in a bifurcated vessel. More particularly, the invention relates to a stent having rings aligned along a common longitudinal axis and connected by links, where the stent has a proximal section, a distal section and a central section. The number of rings and the expanded diameter of the sections is varied to create a “trap door” capable of expanding to a slightly larger diameter than the proximal section and distal section of the stent.Type: GrantFiled: May 17, 2001Date of Patent: June 15, 2004Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Joseph R. Callol, Brian D. Brandt, Nazanine Matin, Hans F. Valencia, W. Stan Wilson, Steve Bigus, David Chi, Brenda Cho
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Patent number: 6676693Abstract: An assembly for delivering a self-expanding stent to an intraluminal location comprising a sheath having a generally non-compliant first portion and a compliant second portion, with the stent positioned within the generally non-compliant first portion for stent delivery. Upon stent deployment, the stent passes from the generally non-compliant first portion into the compliant second portion, and then out of the sheath. The compliant second portion permits the stent to at least partially expand before it passes out of the sheath, so that the force with which the stent expands once outside the sheath is tempered.Type: GrantFiled: June 27, 2001Date of Patent: January 13, 2004Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Brent Belding, Steve Bigus
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Patent number: 6629992Abstract: A catheter assembly for delivering an endoprosthesis within a body lumen. A delivery catheter assembly is provided which includes a stent with biocompatible material thereon for preventing the stent from expanding or otherwise dislodging from the catheter. The stent with biocompatible material is secured to an expandable member of a delivery catheter, whereby inflation of the expandable member causes the biocompatible material to fail, thereby permitting the stent to expand and deploy in a body lumen.Type: GrantFiled: June 29, 2001Date of Patent: October 7, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Steve Bigus, Orlando M. Padilla, Brent Belding
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Patent number: 6592569Abstract: A sheath is provided for covering a device on the distal end of a catheter system during the delivery of the device to an intravascular site within a patient. The sheath can be added to any delivery system prior to use and is intended to protect a deliverable device, such as an intravascular stent, from being dislodged prematurely from the catheter system or moved with respect thereto.Type: GrantFiled: March 29, 2001Date of Patent: July 15, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Steve Bigus, Napoleon L. Caliguiran, Dorrie Happ, Virgilda Torate
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Patent number: 6527739Abstract: A catheter balloon arrangement for application in tortuous blood vessels. First and second spiraled balloons are coupled to a catheter body portion. The spiraled balloons can have first and second apexes with a pitch length there between configured to encourage tortuous compatibility between the catheter balloon arrangement and a body lumen. A method of treatment with an embodiment of a catheter balloon arrangement is also provided.Type: GrantFiled: December 29, 2000Date of Patent: March 4, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Steve Bigus, Carl Simpson, Kevin M. Mauch
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Patent number: 6508836Abstract: An apparatus and method is provided for stenting bifurcated vessels. A proximal angled stent is configured for implanting in a side-branch vessel wherein the proximal angled stent has an angulated portion that corresponds to the angle formed by the intersection of the side-branch vessel and the main vessel so that all portions of the side-branch vessel at the bifurcation are covered by the proximal angled stent. A main-vessel stent is provided for implanting in the main vessel, wherein the main-vessel stent has an aperture or stent cell that aligns with the opening to the side-branch vessel to permit unobstructed blood flow between the main vessel and the side-branch vessel. Side-branch and main-vessel catheter assemblies are advanced over a pair of guide wires for delivering, appropriately orienting, and implanting the proximal angled stent and the apertured stent. In one embodiment, a stent delivery assembly is provided for implanting a Y-shaped stent in a bifurcated vessel.Type: GrantFiled: June 14, 2001Date of Patent: January 21, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: W. Stan Wilson, Steve Bigus, Kevin M. Mauch
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Publication number: 20030004561Abstract: A system which is capable of accurately treating an affected area in a body lumen. The system includes a catheter which is positionable in the body lumen at the treatment site and includes an interventional device such as a self-expandable stent which may be deployed in the blood vessel at the treatment site. The system also includes an expansion retention member, adapted to be extended about the interventional device. The system further includes an extendable member, adapted to be extended about the expansion retention member and the interventional device, for delivery of the interventional device to the treatment site, and to be retractable from extending about the expansion retention member for enabling the interventional device to expand at the treatment site.Type: ApplicationFiled: June 28, 2001Publication date: January 2, 2003Inventors: Steve Bigus, Brent Belding, Suzanne Wallace George
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Patent number: 6428567Abstract: An apparatus and method is provided for stenting bifurcated vessels. A proximal angled stent is configured for implanting in a side-branch vessel wherein the proximal angled stent has an angulated portion that corresponds to the angle formed by the intersection of the side-branch vessel and the main vessel so that all portions of the side-branch vessel at the bifurcation are covered by the proximal angled stent. A main-vessel stent is provided for implanting in the main vessel, wherein the main-vessel stent has an aperture or stent cell that aligns with the opening to the side-branch vessel to permit unobstructed blood flow between the main vessel and the side-branch vessel. Side-branch and main-vessel catheter assemblies are advanced over a pair of guide wires for delivering, appropriately orienting, and implanting the proximal angled stent and the apertured stent. In one embodiment, a stent delivery assembly is provided for implanting a Y-shaped stent in a bifurcated vessel.Type: GrantFiled: April 24, 2001Date of Patent: August 6, 2002Assignee: Advanced Cardiovascular Systems, Inc.Inventors: W. Stan Wilson, Steve Bigus, Kevin M. Mauch
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Publication number: 20020052640Abstract: A catheter assembly for delivering an endoprosthesis within a body lumen. A delivery catheter assembly is provided which includes a stent with biocompatible material thereon for preventing the stent from expanding or otherwise dislodging from the catheter. The stent with biocompatible material is secured to an expandable member of a delivery catheter, whereby inflation of the expandable member causes the biocompatible material to fail, thereby permitting the stent to expand and deploy in a body lumen.Type: ApplicationFiled: June 29, 2001Publication date: May 2, 2002Inventors: Steve Bigus, Orlando M. Padilla, Brent Belding
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Patent number: 6361544Abstract: An apparatus and method is provided for stenting bifurcated vessels. A proximal angled stent is configured for implanting in a side-branch vessel wherein the proximal angled stent has an angulated portion that corresponds to the angle formed by the intersection of the side-branch vessel and the main vessel so that all portions of the side-branch vessel at the bifurcation are covered by the proximal angled stent. A main-vessel stent is provided for implanting in the main vessel, wherein the main-vessel stent has an aperture or stent cell that aligns with the opening to the side-branch vessel to permit unobstructed blood flow between the main vessel and the side-branch vessel. Side-branch and main-vessel catheter assemblies are advanced over a pair of guide wires for delivering, appropriately orienting, and implanting the proximal angled stent and the apertured stent. In one embodiment, a stent delivery assembly is provided for implanting a Y-shaped stent in a bifurcated vessel.Type: GrantFiled: December 1, 1999Date of Patent: March 26, 2002Assignee: Advanced Cardiovascular Systems, Inc.Inventors: W. Stan Wilson, Steve Bigus, Kevin M. Mauch
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Publication number: 20010037116Abstract: An apparatus and method is provided for stenting bifurcated vessels. A proximal angled stent is configured for implanting in a side-branch vessel wherein the proximal angled stent has an angulated portion that corresponds to the angle formed by the intersection of the side-branch vessel and the main vessel so that all portions of the side-branch vessel at the bifurcation are covered by the proximal angled stent. A main-vessel stent is provided for implanting in the main-vessel, wherein the main-vessel stent has an aperture or stent cell that aligns with the opening to the side-branch vessel to permit unobstructed blood flow between the main vessel and the side-branch vessel. Side-branch and main-vessel catheter assemblies are advanced over a pair of guide wires for delivering, appropriately orienting, and implanting the proximal angled stent and the apertured stent. In one embodiment, a stent delivery assembly is provided for implanting a Y-shaped stent in a bifurcated vessel.Type: ApplicationFiled: June 14, 2001Publication date: November 1, 2001Inventors: W. Stan Wilson, Steve Bigus, Kevin M. Mauch
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Publication number: 20010029396Abstract: An apparatus and method is provided for stenting bifurcated vessels. A proximal angled stent is configured for implanting in a side-branch vessel wherein the proximal angled stent has an angulated portion that corresponds to the angle formed by the intersection of the side-branch vessel and the main vessel so that all portions of the side-branch vessel at the bifurcation are covered by the proximal angled stent. A main-vessel stent is provided for implanting in the main vessel, wherein the main-vessel stent has an aperture or stent cell that aligns with the opening to the side-branch vessel to permit unobstructed blood flow between the main vessel and the side-branch vessel. Side-branch and main-vessel catheter assemblies are advanced over a pair of guide wires for delivering, appropriately orienting, and implanting the proximal angled stent and the apertured stent. In one embodiment, a stent delivery assembly is provided for implanting a Y-shaped stent in a bifurcated vessel.Type: ApplicationFiled: April 24, 2001Publication date: October 11, 2001Inventors: W. Stan Wilson, Steve Bigus, Kevin M. Mauch
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Patent number: 6287291Abstract: A sheath is provided for covering a device on the distal end of a catheter system during the delivery of the device to an intravascular site within a patient. The sheath can be added to any delivery system prior to use and is intended to protect a deliverable device, such as an intravascular stent, from being dislodged prematurely from the catheter system or moved with respect thereto.Type: GrantFiled: November 9, 1999Date of Patent: September 11, 2001Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Steve Bigus, Napoleon L. Caliguiran, Dorrie Happ, Virgilda Torate
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Publication number: 20010020154Abstract: A sheath is provided for covering a device on the distal end of a catheter system during the delivery of the device to an intravascular site within a patient. The sheath can be added to any delivery system prior to use and is intended to protect a deliverable device, such as an intravascular stent, from being dislodged prematurely from the catheter system or moved with respect thereto.Type: ApplicationFiled: March 29, 2001Publication date: September 6, 2001Inventors: Steve Bigus, Napoleon L. Caliguiran, Dorrie Happ, Virgilda Torate