Patents by Inventor Ashok NAGESWARAN
Ashok NAGESWARAN 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).
-
Patent number: 10786377Abstract: A stent delivery system includes a core member and a coupling assembly rotatably coupled to the core member distal segment. The coupling assembly includes first and second plates and first and second spacers. The first plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The first spacer is coupled to the core member and disposed between the first plate and a proximal restraint. The second plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The second spacer is coupled to the core member and disposed between the first plate and the second plate. A stent extends along the core member distal segment such that an inner surface of the stent is engaged by one or more projections of the first plate or the second plate.Type: GrantFiled: April 12, 2018Date of Patent: September 29, 2020Assignee: COVIDIEN LPInventors: Ashok Nageswaran, Marc Dawson
-
Publication number: 20190374358Abstract: A stent delivery system can include a core assembly sized for insertion into a corporeal lumen and configured for advancing a stent toward a treatment location in the corporeal lumen. The core assembly can include a longitudinally extending tube having a lumen and a helical cut extending along the tube. An elongate wire can extend through the tube lumen. The wire can have an intermediate portion disposed distal to the tube. The system can also include a stent carried by the intermediate portion.Type: ApplicationFiled: June 6, 2018Publication date: December 12, 2019Inventor: Ashok Nageswaran
-
Publication number: 20190336312Abstract: A stent coupler for use with a medical device delivery system is disclosed. A stent delivery system includes a core member having a distal segment and a coupler positioned about the core member distal segment. the coupler is rotatably coupled to the core member and includes a rigid plate having a first end surface, a second end surface, and a side surface extending between the first and second end surfaces, the side surface comprising one or more projections separated by recesses. The delivery system further includes a stent extending along the core member distal segment such that an inner surface of the stent is engaged by the one or more projections of the engagement member.Type: ApplicationFiled: July 1, 2019Publication date: November 7, 2019Inventors: Ashok Nageswaran, Cong Dang, Aaron Barrett, James Phan
-
Publication number: 20190314177Abstract: A stent delivery system includes a core member and a coupling assembly rotatably coupled to the core member distal segment. The coupling assembly includes first and second plates and first and second spacers. The first plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The first spacer is coupled to the core member and disposed between the first plate and a proximal restraint. The second plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The second spacer is coupled to the core member and disposed between the first plate and the second plate. A stent extends along the core member distal segment such that an inner surface of the stent is engaged by one or more projections of the first plate or the second plate.Type: ApplicationFiled: April 12, 2018Publication date: October 17, 2019Inventors: Augusto Alonso, Ashok Nageswaran, Marc Dawson
-
Publication number: 20190314179Abstract: A stent delivery system includes a core member and a coupling assembly rotatably coupled to the core member distal segment. The coupling assembly includes first and second plates and first and second spacers. The first plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The first spacer is coupled to the core member and disposed between the first plate and a proximal restraint. The second plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The second spacer is coupled to the core member and disposed between the first plate and the second plate. A stent extends along the core member distal segment such that an inner surface of the stent is engaged by one or more projections of the first plate or the second plate.Type: ApplicationFiled: April 12, 2018Publication date: October 17, 2019Inventors: Ashok Nageswaran, Augusto Alonso, Sabrina Bruce-Akman
-
Publication number: 20190314176Abstract: A stent delivery system includes a core member and a coupling assembly rotatably coupled to the core member distal segment. The coupling assembly includes first and second plates and first and second spacers. The first plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The first spacer is coupled to the core member and disposed between the first plate and a proximal restraint. The second plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The second spacer is coupled to the core member and disposed between the first plate and the second plate. A stent extends along the core member distal segment such that an inner surface of the stent is engaged by one or more projections of the first plate or the second plate.Type: ApplicationFiled: April 12, 2018Publication date: October 17, 2019Inventors: Ashok Nageswaran, Marc Dawson
-
Publication number: 20190314175Abstract: A stent delivery system includes a core member and a coupling assembly rotatably coupled to the core member distal segment. The coupling assembly includes first and second plates and first and second spacers. The first plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The first spacer is coupled to the core member and disposed between the first plate and a proximal restraint. The second plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The second spacer is coupled to the core member and disposed between the first plate and the second plate. A stent extends along the core member distal segment such that an inner surface of the stent is engaged by one or more projections of the first plate or the second plate.Type: ApplicationFiled: April 12, 2018Publication date: October 17, 2019Inventors: Marc Dawson, Ashok Nageswaran, Aaron Barrett, Hieu Dang
-
Patent number: 10376396Abstract: A stent coupler for use with a medical device delivery system is disclosed. A stent delivery system includes a core member having a distal segment and a coupler positioned about the core member distal segment. the coupler is rotatably coupled to the core member and includes a rigid plate having a first end surface, a second end surface, and a side surface extending between the first and second end surfaces, the side surface comprising one or more projections separated by recesses. The delivery system further includes a stent extending along the core member distal segment such that an inner surface of the stent is engaged by the one or more projections of the engagement member.Type: GrantFiled: January 19, 2017Date of Patent: August 13, 2019Assignee: Covidien LPInventors: Ashok Nageswaran, Cong Dang, Aaron Barrett, James Phan
-
Publication number: 20190192322Abstract: Devices that can be delivered into a vascular system to divert flow are disclosed herein. According to some embodiments, devices are provided for treating aneurysms by diverting flow. An expandable device can comprise, for example, a plurality of connector sections and a plurality of bridge sections. Each of the connector sections may extend circumferentially about the expandable device and include a plurality of connector struts. Each of the plurality of bridge sections may be attached to and extend between two of the connector sections and comprise a plurality of parallel, non-branching, helical bridge members.Type: ApplicationFiled: February 28, 2019Publication date: June 27, 2019Inventors: Animesh Choubey, Ashok Nageswaran
-
Publication number: 20190175199Abstract: Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.Type: ApplicationFiled: December 11, 2017Publication date: June 13, 2019Inventors: Gaurav Girdhar, Hoai Nguyen, Andy Huynh, Ashok Nageswaran, Christopher Andrews
-
Publication number: 20180318118Abstract: A stent delivery system can include a core member, an introducer sheath, and a microcatheter. The core member can have a distal segment. The stent engagement member can have a generally tubular body positioned about the core member distal segment and can be rotatably coupled to the core member. The engagement member can include an inner layer that has a first durometer and an outer layer that has a second durometer less than the first durometer. The stent can extend along the core member distal segment such that an inner surface of the stent is engaged by the engagement member outer layer for facilitating rotation of the stent relative to the core member.Type: ApplicationFiled: July 11, 2018Publication date: November 8, 2018Inventors: Ashok Nageswaran, Michael Losordo, Gabriel Newell, Lawrence Farhat
-
Patent number: 10045867Abstract: A stent delivery system can include a core member, a stent engagement member, and a stent. The core member can have a distal segment. The stent engagement member can have a generally tubular body positioned about the core member distal segment and can be rotatably coupled to the core member. The engagement member can include an inner layer that has a first durometer and an outer layer that has a second durometer less than the first durometer. The stent can extend along the core member distal segment such that an inner surface of the stent is engaged by the engagement member outer layer for facilitating rotation of the stent relative to the core member.Type: GrantFiled: September 27, 2013Date of Patent: August 14, 2018Assignee: COVIDIEN LPInventors: Ashok Nageswaran, Michael Losordo, Gabriel Newell, Lawrence Farhat
-
Publication number: 20180200092Abstract: A stent coupler for use with a medical device delivery system is disclosed. A stent delivery system includes a core member having a distal segment and a coupler positioned about the core member distal segment. the coupler is rotatably coupled to the core member and includes a rigid plate having a first end surface, a second end surface, and a side surface extending between the first and second end surfaces, the side surface comprising one or more projections separated by recesses. The delivery system further includes a stent extending along the core member distal segment such that an inner surface of the stent is engaged by the one or more projections of the engagement member.Type: ApplicationFiled: January 19, 2017Publication date: July 19, 2018Inventors: Ashok Nageswaran, Cong Dang, Aaron Barrett, James Phan
-
Publication number: 20170273810Abstract: Devices that can be delivered into a vascular system to divert flow are disclosed herein. According to some embodiments, devices are provided for treating aneurysms by diverting flow. An expandable device can comprise, for example, a plurality of connector sections and a plurality of bridge sections. Each of the connector sections may extend circumferentially about the expandable device and include a plurality of connector struts. Each of the plurality of bridge sections may be attached to and extend between two of the connector sections and comprise a plurality of parallel, non-branching, helical bridge members.Type: ApplicationFiled: March 24, 2017Publication date: September 28, 2017Inventors: Animesh Choubey, Ashok Nageswaran
-
Patent number: 9687245Abstract: An aneurysm therapy system, can include a catheter and an occlusive device. The catheter can have a proximal end, a distal end, and a lumen extending between the proximal and distal ends. The proximal end can include a self-expanding distal section, and the distal section can comprise a coil portion. The occlusive device can be disposed within the lumen and configured to reside in the aneurysm to restrict fluid flow within the aneurysm.Type: GrantFiled: March 15, 2013Date of Patent: June 27, 2017Assignee: COVIDIEN LPInventors: Masoud Molaei, Michael Louis Losordo, Ashok Nageswaran, Stephen Griffin, Jim Davidson
-
Publication number: 20150066129Abstract: A stent delivery system can include a core member, a stent engagement member, and a stent. The core member can have a distal segment. The stent engagement member can have a generally tubular body positioned about the core member distal segment and can be rotatably coupled to the core member. The engagement member can include an inner layer that has a first durometer and an outer layer that has a second durometer less than the first durometer. The stent can extend along the core member distal segment such that an inner surface of the stent is engaged by the engagement member outer layer for facilitating rotation of the stent relative to the core member.Type: ApplicationFiled: September 27, 2013Publication date: March 5, 2015Applicant: COVIDIEN LPInventors: Ashok Nageswaran, Michael Losordo, Gabriel Newell, Lawrence Farhat
-
Publication number: 20130253572Abstract: An aneurysm therapy system, can include a catheter and an occlusive device. The catheter can have a proximal end, a distal end, and a lumen extending between the proximal and distal ends. The proximal end can include a self-expanding distal section, and the distal section can comprise a coil portion. The occlusive device can be disposed within the lumen and configured to reside in the aneurysm to restrict fluid flow within the aneurysm.Type: ApplicationFiled: March 15, 2013Publication date: September 26, 2013Applicant: COVIDIEN LPInventors: Masoud MOLAEI, Michael Louis LOSORDO, Ashok NAGESWARAN, Stephen GRIFFIN, Jim DAVIDSON