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).

  • Publication number: 20230293327
    Abstract: 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: Application
    Filed: April 21, 2023
    Publication date: September 21, 2023
    Applicant: Abbott Cardiovascular System Inc.
    Inventors: Stephen Craig Olson, JR., Senthil Eswaran, Erik Eli
  • Patent number: 11648138
    Abstract: 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: Grant
    Filed: May 17, 2021
    Date of Patent: May 16, 2023
    Assignee: Abbott Cardiovascular System Inc.
    Inventors: Stephen Craig Olson, Jr., Senthil Eswaran, Erik Eli
  • Publication number: 20230049555
    Abstract: 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: Application
    Filed: October 31, 2022
    Publication date: February 16, 2023
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Diem Ta, Erik Eli, Senthil Eswaran
  • Patent number: 11517457
    Abstract: 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: Grant
    Filed: July 3, 2019
    Date of Patent: December 6, 2022
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Diem Ta, Erik Eli, Senthil Eswaran
  • Publication number: 20210275332
    Abstract: 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: Application
    Filed: May 17, 2021
    Publication date: September 9, 2021
    Applicant: Abbott Cardiovascular System Inc.
    Inventors: Stephen Craig Olson, JR., Senthil Eswaran, Erik Eli
  • Publication number: 20210000625
    Abstract: 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: Application
    Filed: July 3, 2019
    Publication date: January 7, 2021
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Diem Ta, Erik Eli, Senthil Eswaran
  • Publication number: 20190254849
    Abstract: 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: Application
    Filed: February 20, 2018
    Publication date: August 22, 2019
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Stephen Craig Olson, JR., Senthil Eswaran, Erik Eli
  • Patent number: 10278844
    Abstract: 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: Grant
    Filed: August 28, 2017
    Date of Patent: May 7, 2019
    Assignee: 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
  • Publication number: 20190060093
    Abstract: 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: Application
    Filed: October 29, 2018
    Publication date: February 28, 2019
    Inventors: Diem TA, Chad ABUNASSAR, Senthil ESWARAN
  • Publication number: 20190008629
    Abstract: 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: Application
    Filed: July 7, 2017
    Publication date: January 10, 2019
    Inventors: Erik D. Eli, Senthil Eswaran, Denis Tauz, Michael L. Green
  • Patent number: 10143573
    Abstract: 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: Grant
    Filed: December 17, 2015
    Date of Patent: December 4, 2018
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran
  • Patent number: 9956099
    Abstract: 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: Grant
    Filed: December 17, 2015
    Date of Patent: May 1, 2018
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran, Zhicheng Lin
  • Publication number: 20180008438
    Abstract: 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: Application
    Filed: August 28, 2017
    Publication date: January 11, 2018
    Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
  • Patent number: 9861507
    Abstract: 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: Grant
    Filed: December 17, 2015
    Date of Patent: January 9, 2018
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran
  • Patent number: 9795497
    Abstract: 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: Grant
    Filed: September 18, 2015
    Date of Patent: October 24, 2017
    Assignee: 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
  • Patent number: 9757258
    Abstract: 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: Grant
    Filed: September 18, 2015
    Date of Patent: September 12, 2017
    Assignee: 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
  • Publication number: 20170172769
    Abstract: 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: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran, Zhicheng Lin
  • Publication number: 20170172770
    Abstract: 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: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran
  • Publication number: 20170172768
    Abstract: 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: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventors: Diem Ta, Chad Abunassar, Senthil Eswaran
  • Publication number: 20160081827
    Abstract: 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: Application
    Filed: September 18, 2015
    Publication date: March 24, 2016
    Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta