Patents by Inventor Diem Uyen Ta
Diem Uyen Ta 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: 20160287418Abstract: The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links and rings provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis and providing a low crimp profile, enhanced stent security and radial stiffness.Type: ApplicationFiled: June 17, 2016Publication date: October 6, 2016Applicant: Abbott Cardiovascular Systems Inc.Inventors: E. Tina Cheng, Santosh Prabhu, Kyle Marie Krueger, Diem Uyen Ta, Carla Rosa Pienknagura
-
Patent number: 9375331Abstract: The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links and rings provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis and providing a low crimp profile, enhanced stent security and radial stiffness.Type: GrantFiled: January 7, 2008Date of Patent: June 28, 2016Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: E Tina Cheng, Santosh Prabhu, Kyle Marie Krueger, Diem Uyen Ta, Carla Rosa Pienknagura
-
Publication number: 20150057743Abstract: An expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. In one aspect, the stent includes a butterfly pattern to which connecting links are attached. In another aspect, the stent embodies a non-directional structure. One embodiment is a stent in which one or both ends are more flexible than the center portion. Also, the stent may have a non-uniform drug coating. Another embodiment relates to a stent having ends that are more radiopaque than the center portion.Type: ApplicationFiled: October 30, 2014Publication date: February 26, 2015Inventors: Diem Uyen Ta, David Chi, Svava Maria Altadottir, Bjorn Svensson
-
Publication number: 20140379071Abstract: An expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. In one aspect, the stent includes a butterfly pattern to which connecting links are attached. In another aspect, the stent embodies a non-directional structure.Type: ApplicationFiled: September 10, 2014Publication date: December 25, 2014Inventor: Diem Uyen Ta
-
Patent number: 8882826Abstract: An expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. In one aspect, the stent includes a butterfly pattern to which connecting links are attached. In another aspect, the stent embodies a non-directional structure. One embodiment is a stent in which one or both ends are more flexible than the center portion. Also, the stent may have a non-uniform drug coating. Another embodiment relates to a stent having ends that are more radiopaque than the center portion.Type: GrantFiled: August 20, 2007Date of Patent: November 11, 2014Assignee: Abbott Cardiovascular Systems Inc.Inventors: Diem Uyen Ta, David Chi, Svava Maria Atladottir, Bjorn Svensson
-
Patent number: 8834554Abstract: An expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. In one aspect, the stent includes a butterfly pattern to which connecting links are attached. In another aspect, the stent embodies a non-directional structure.Type: GrantFiled: August 22, 2006Date of Patent: September 16, 2014Assignee: Abbott Cardiovascular Systems Inc.Inventor: Diem Uyen Ta
-
Publication number: 20140163666Abstract: An expandable stent for implantation in a body lumen, such as an artery, is disclosed. The stent consists of a plurality of radially expandable cylindrical rings generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting links placed so that the stent is flexible in the longitudinal direction. The link pattern is optimized to reduce strain on the links and enhance longitudinal flexibility and security of the stent. The stent includes a distal end ring and a proximal end ring that have a length that is shorter than the length of the body rings.Type: ApplicationFiled: January 9, 2014Publication date: June 12, 2014Applicant: Abbott Cardiovascular Systems Inc.Inventors: Diem Uyen Ta, Timothy A. Limon, Andy E. Denison
-
Patent number: 8628565Abstract: An expandable stent for implantation in a body lumen, such as an artery, is disclosed. The stent consists of a plurality of radially expandable cylindrical rings generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting links placed so that the stent is flexible in the longitudinal direction. The link pattern is optimized to reduce strain on the links and enhance longitudinal flexibility and security of the stent. The stent includes a distal end ring and a proximal end ring that have a length that is shorter than the length of the body rings.Type: GrantFiled: April 13, 2005Date of Patent: January 14, 2014Assignee: Abbott Cardiovascular Systems Inc.Inventors: Diem Uyen Ta, Timothy A. Limon, Andy E. Denison
-
Publication number: 20120330403Abstract: The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The invention provides for an intravascular stent having a plurality of cylindrical rings connected by undulating links. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. The stent can be compressed or crimped onto a catheter to a very low profile since the peaks that are adjacent the curved portion of the undulating link are shorter than other peaks in the same cylindrical ring to prevent overlap yet still achieve a very low profile, tightly crimped stent onto a catheter.Type: ApplicationFiled: August 31, 2012Publication date: December 27, 2012Applicant: ADVANCED CARDIOVASCULAR SYSTEMS, INC.Inventors: Andreina P. Gomez, Diem Uyen Ta
-
Patent number: 8257426Abstract: The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The invention provides for an intravascular stent having a plurality of cylindrical rings connected by undulating links. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. The stent can be compressed or crimped onto a catheter to a very low profile since the peaks that are adjacent the curved portion of the undulating link are shorter than other peaks in the same cylindrical ring to prevent overlap yet still achieve a very low profile, tightly crimped stent onto a catheter.Type: GrantFiled: April 1, 2009Date of Patent: September 4, 2012Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Andreina P. Gomez, Diem Uyen Ta
-
Patent number: 8029558Abstract: An improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The stent includes rings aligned along a common longitudinal axis and connected by links, where the stent has one or more portals for aligning with and partially expanding into the opening to the side branch vessel. The stent is implanted at a bifurcation so that the main stent section is in the main vessel, and the portal section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel. Radiopaque markers on the stent and on the tip of the delivery catheter assist in aligning the portal section with the opening to the side branch vessel.Type: GrantFiled: July 7, 2006Date of Patent: October 4, 2011Assignee: Abbott Cardiovascular Systems, Inc.Inventors: Diem Uyen Ta, Caroline Wu, Brenna K. Hearn, Daniel L. Cox, Leonard D. Barbod, Jessie Delgado, Stephen Dirk Pacetti, Thomas Ray Hatten, David K. Wrolstad, Kenneth Kay Armstrong, Darrin J. Kent
-
Publication number: 20110208286Abstract: An improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The stent includes rings aligned along a common longitudinal axis and connected by links, where the stent has one or more portals for aligning with and partially expanding into the opening to the side branch vessel. The stent is implanted at a bifurcation so that the main stent section is in the main vessel, and the portal section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel. Radiopaque markers on the stent and on the tip of the delivery catheter assist in aligning the portal section with the opening to the side branch vessel.Type: ApplicationFiled: May 2, 2011Publication date: August 25, 2011Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Diem Uyen Ta, Caroline Wu, Brenna K. Hearn, Daniel L. Cox, Leonardo D. Barbod, Jessie Delgado, Stephen Dirk Pacetti, Thomas Ray Hatten, David K. Wrolstad, Kenneth Kay Armstrong, Darrin J. Kent
-
Patent number: 7959667Abstract: An improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The stent includes rings aligned along a common longitudinal axis and connected by links, where the stent has one or more portals for aligning with and partially expanding into the opening to the side branch vessel. The stent is implanted at a bifurcation so that the main stent section is in the main vessel, and the portal section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel. Radiopaque markers on the stent and on the tip of the delivery catheter assist in aligning the portal section with the opening to the side branch vessel.Type: GrantFiled: December 21, 2006Date of Patent: June 14, 2011Assignee: Abbott Cardiovascular Systems Inc.Inventors: Diem Uyen Ta, Caroline Wu, Brenna K. Hearn, Daniel L. Cox, Leonard D. Barbod, Jessie Delgado, Stephen Dirk Pacetti, Thomas Ray Hatten, David K. Wrolstad, Kenneth Kay Armstrong, Darrin J. Kent
-
Publication number: 20090192589Abstract: The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The invention provides for an intravascular stent having a plurality of cylindrical rings connected by undulating links. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. The stent can be compressed or crimped onto a catheter to a very low profile since the peaks that are adjacent the curved portion of the undulating link are shorter than other peaks in the same cylindrical ring to prevent overlap yet still achieve a very low profile, tightly crimped stent onto a catheter.Type: ApplicationFiled: April 1, 2009Publication date: July 30, 2009Applicant: ADVANCED CARDIOVASCULAR SYSTEMS, INC.Inventors: Andreina P. Gomez, Diem Uyen Ta
-
Patent number: 7534258Abstract: The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The invention provides for an intravascular stent having a plurality of cylindrical rings connected by undulating links. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. The stent can be compressed or crimped onto a catheter to a very low profile since the peaks that are adjacent the curved portion of the undulating link are shorter than other peaks in the same cylindrical ring to prevent overlap yet still achieve a very low profile, tightly crimped stent onto a catheter.Type: GrantFiled: August 31, 2005Date of Patent: May 19, 2009Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Andreina P. Gomez, Diem Uyen Ta
-
Publication number: 20080086190Abstract: An expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. In one aspect, the stent includes a butterfly pattern to which connecting links are attached. In another aspect, the stent embodies a non-directional structure.Type: ApplicationFiled: August 22, 2006Publication date: April 10, 2008Inventor: Diem Uyen Ta
-
Publication number: 20080051876Abstract: An expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. In one aspect, the stent includes a butterfly pattern to which connecting links are attached. In another aspect, the stent embodies a non-directional structure. One embodiment is a stent in which one or both ends are more flexible than the center portion. Also, the stent may have a non-uniform drug coating. Another embodiment relates to a stent having ends that are more radiopaque than the center portion.Type: ApplicationFiled: August 20, 2007Publication date: February 28, 2008Applicant: ADVANCED CARDIOVASCULAR SYSTEMS, INC.Inventors: Diem Uyen Ta, David Chi, Svava Maria Atladottir, Bjorn Svensson
-
Publication number: 20080009932Abstract: An improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The stent includes rings aligned along a common longitudinal axis and connected by links, where the stent has one or more portals for aligning with and partially expanding into the opening to the side branch vessel. The stent is implanted at a bifurcation so that the main stent section is in the main vessel, and the portal section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel. Radiopaque markers on the stent and on the tip of the delivery catheter assist in aligning the portal section with the opening to the side branch vessel.Type: ApplicationFiled: July 7, 2006Publication date: January 10, 2008Inventors: Diem Uyen Ta, Caroline Wu, Brenna K. Hearn, Daniel L. Cox, Leonard D. Barbod, Jessie Delgado, Stephen Dirk Pacetti, Thomas Ray Hatten, David K. Wrolstad, Kenneth Kay Armstrong, Darrin J. Kent
-
Publication number: 20080009933Abstract: An improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The stent includes rings aligned along a common longitudinal axis and connected by links, where the stent has one or more portals for aligning with and partially expanding into the opening to the side branch vessel. The stent is implanted at a bifurcation so that the main stent section is in the main vessel, and the portal section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel. Radiopaque markers on the stent and on the tip of the delivery catheter assist in aligning the portal section with the opening to the side branch vessel.Type: ApplicationFiled: December 21, 2006Publication date: January 10, 2008Inventors: Diem Uyen Ta, Caroline Wu, Brenna K. Hearn, Daniel L. Cox, Leonard D. Barbod, Jessie Delgado, Stephen Dirk Pacetti, Thomas Ray Hatten, David K. Wrolstad, Kenneth Kay Armstrong, Darrin J. Kent
-
Patent number: 7316710Abstract: The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links and rings provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis and providing a low crimp profile, enhanced stent security and radial stiffness.Type: GrantFiled: December 30, 2002Date of Patent: January 8, 2008Assignee: Advanced Cardiovascular Systems, Inc.Inventors: E Tina Cheng, Santosh Prabhu, Kyle Marie Krueger, Diem Uyen Ta, Carla Rosa Pienknagura