Patents by Inventor Senthil Eswaran
Senthil Eswaran 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: 20230293327Abstract: A balloon comprising: a center portion having a proximal end, a distal end opposite the proximal end, and a length between the proximal end and the distal end. The center portion comprises: a first nominal diameter and a first radial modulus at the proximal end; a second nominal diameter and a second radial modulus at the distal end; further wherein, the first nominal diameter is equal to the second nominal diameter, such that, when the balloon is inflated to a nominal pressure, the center portion has a constant diameter over the length; and further wherein, the first radial modulus is smaller than the second radial modulus, such that, when the balloon is inflated above a nominal pressure, the center portion adopts a tapered shape in which the proximal end has a first stretched diameter and the distal end has a second stretched diameter, the first stretched diameter being larger than the second stretched diameter.Type: ApplicationFiled: April 21, 2023Publication date: September 21, 2023Applicant: Abbott Cardiovascular System Inc.Inventors: Stephen Craig Olson, JR., Senthil Eswaran, Erik Eli
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Patent number: 11648138Abstract: A balloon comprising: a center portion having a proximal end, a distal end opposite the proximal end, and a length between the proximal end and the distal end. The center portion comprises: a first nominal diameter and a first radial modulus at the proximal end; a second nominal diameter and a second radial modulus at the distal end; further wherein, the first nominal diameter is equal to the second nominal diameter, such that, when the balloon is inflated to a nominal pressure, the center portion has a constant diameter over the length; and further wherein, the first radial modulus is smaller than the second radial modulus, such that, when the balloon is inflated above a nominal pressure, the center portion adopts a tapered shape in which the proximal end has a first stretched diameter and the distal end has a second stretched diameter, the first stretched diameter being larger than the second stretched diameter.Type: GrantFiled: May 17, 2021Date of Patent: May 16, 2023Assignee: Abbott Cardiovascular System Inc.Inventors: Stephen Craig Olson, Jr., Senthil Eswaran, Erik Eli
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Publication number: 20230049555Abstract: 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 enhance longitudinal flexibility and high longitudinal strength compression of the stent.Type: ApplicationFiled: October 31, 2022Publication date: February 16, 2023Applicant: Abbott Cardiovascular Systems Inc.Inventors: Diem Ta, Erik Eli, Senthil Eswaran
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Patent number: 11517457Abstract: 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 enhance longitudinal flexibility and high longitudinal strength compression of the stent.Type: GrantFiled: July 3, 2019Date of Patent: December 6, 2022Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Diem Ta, Erik Eli, Senthil Eswaran
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Publication number: 20210275332Abstract: A balloon comprising: a center portion having a proximal end, a distal end opposite the proximal end, and a length between the proximal end and the distal end. The center portion comprises: a first nominal diameter and a first radial modulus at the proximal end; a second nominal diameter and a second radial modulus at the distal end; further wherein, the first nominal diameter is equal to the second nominal diameter, such that, when the balloon is inflated to a nominal pressure, the center portion has a constant diameter over the length; and further wherein, the first radial modulus is smaller than the second radial modulus, such that, when the balloon is inflated above a nominal pressure, the center portion adopts a tapered shape in which the proximal end has a first stretched diameter and the distal end has a second stretched diameter, the first stretched diameter being larger than the second stretched diameter.Type: ApplicationFiled: May 17, 2021Publication date: September 9, 2021Applicant: Abbott Cardiovascular System Inc.Inventors: Stephen Craig Olson, JR., Senthil Eswaran, Erik Eli
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Publication number: 20210000625Abstract: 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 enhance longitudinal flexibility and high longitudinal strength compression of the stent.Type: ApplicationFiled: July 3, 2019Publication date: January 7, 2021Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Diem Ta, Erik Eli, Senthil Eswaran
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Publication number: 20190254849Abstract: A balloon comprising: a center portion having a proximal end, a distal end opposite the proximal end, and a length between the proximal end and the distal end. The center portion comprises: a first nominal diameter and a first radial modulus at the proximal end; a second nominal diameter and a second radial modulus at the distal end; further wherein, the first nominal diameter is equal to the second nominal diameter, such that, when the balloon is inflated to a nominal pressure, the center portion has a constant diameter over the length; and further wherein, the first radial modulus is smaller than the second radial modulus, such that, when the balloon is inflated above a nominal pressure, the center portion adopts a tapered shape in which the proximal end has a first stretched diameter and the distal end has a second stretched diameter, the first stretched diameter being larger than the second stretched diameter.Type: ApplicationFiled: February 20, 2018Publication date: August 22, 2019Applicant: Abbott Cardiovascular Systems Inc.Inventors: Stephen Craig Olson, JR., Senthil Eswaran, Erik Eli
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Patent number: 10278844Abstract: Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.Type: GrantFiled: August 28, 2017Date of Patent: May 7, 2019Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
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Publication number: 20190060093Abstract: A thin-walled scaffold has a network of rings interconnected by links. A link includes holding a radiopaque marker connects adjacent rings. The link and/or a nearby ring is modified to compensate for the thin walls when the scaffold is crimped to a balloon.Type: ApplicationFiled: October 29, 2018Publication date: February 28, 2019Inventors: Diem TA, Chad ABUNASSAR, Senthil ESWARAN
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Publication number: 20190008629Abstract: A catheter assembly is configured to segmentally expand a scaffold. The catheter assembly includes a balloon that is inflated to expand a first scaffold region, is deflated and retracted into the expanded first scaffold region, and then inflated to expand a second scaffold region.Type: ApplicationFiled: July 7, 2017Publication date: January 10, 2019Inventors: Erik D. Eli, Senthil Eswaran, Denis Tauz, Michael L. Green
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Patent number: 10143573Abstract: A thin-walled scaffold includes a radiopaque marker connected to a link. In a first example, the marker is retained on the strut by a head at one or both ends by swaging. In a second example of a thin-walled scaffold the link is modified to avoid interference during crimping. In a third example a distal end of the thin-walled scaffold is modified to improve deliverability of the thin-walled scaffold. These features are combined in a fourth example.Type: GrantFiled: December 17, 2015Date of Patent: December 4, 2018Assignee: Abbott Cardiovascular Systems Inc.Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran
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Patent number: 9956099Abstract: A thin-walled scaffold includes a radiopaque marker connected to a link. In a first example, the marker is retained on the strut by a head at one or both ends by swaging. In a second example of a thin-walled scaffold the link is modified to avoid interference during crimping. In a third example a distal end of the thin-walled scaffold is modified to improve deliverability of the thin-walled scaffold. These features are combined in a fourth example.Type: GrantFiled: December 17, 2015Date of Patent: May 1, 2018Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran, Zhicheng Lin
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Publication number: 20180008438Abstract: Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.Type: ApplicationFiled: August 28, 2017Publication date: January 11, 2018Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
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Patent number: 9861507Abstract: A thin-walled scaffold includes a radiopaque marker connected to a link. In a first example, the marker is retained on the strut by a head at one or both ends by swaging. In a second example of a thin-walled scaffold the link is modified to avoid interference during crimping. In a third example a distal end of the thin-walled scaffold is modified to improve deliverability of the thin-walled scaffold. These features are combined in a fourth example.Type: GrantFiled: December 17, 2015Date of Patent: January 9, 2018Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran
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Patent number: 9795497Abstract: Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.Type: GrantFiled: September 18, 2015Date of Patent: October 24, 2017Assignee: Abbott Cardiovascular Systems Inc.Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
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Patent number: 9757258Abstract: Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.Type: GrantFiled: September 18, 2015Date of Patent: September 12, 2017Assignee: Abbott Cardiovascular Systems Inc.Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
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Publication number: 20170172769Abstract: A thin-walled scaffold includes a radiopaque marker connected to a link. In a first example, the marker is retained on the strut by a head at one or both ends by swaging. In a second example of a thin-walled scaffold the link is modified to avoid interference during crimping. In a third example a distal end of the thin-walled scaffold is modified to improve deliverability of the thin-walled scaffold. These features are combined in a fourth example.Type: ApplicationFiled: December 17, 2015Publication date: June 22, 2017Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran, Zhicheng Lin
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Publication number: 20170172770Abstract: A thin-walled scaffold includes a radiopaque marker connected to a link. In a first example, the marker is retained on the strut by a head at one or both ends by swaging. In a second example of a thin-walled scaffold the link is modified to avoid interference during crimping. In a third example a distal end of the thin-walled scaffold is modified to improve deliverability of the thin-walled scaffold. These features are combined in a fourth example.Type: ApplicationFiled: December 17, 2015Publication date: June 22, 2017Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran
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Publication number: 20170172768Abstract: A thin-walled scaffold includes a radiopaque marker connected to a link. In a first example, the marker is retained on the strut by a head at one or both ends by swaging. In a second example of a thin-walled scaffold the link is modified to avoid interference during crimping. In a third example a distal end of the thin-walled scaffold is modified to improve deliverability of the thin-walled scaffold. These features are combined in a fourth example.Type: ApplicationFiled: December 17, 2015Publication date: June 22, 2017Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran
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Publication number: 20160081827Abstract: Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.Type: ApplicationFiled: September 18, 2015Publication date: March 24, 2016Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta