Patents by Inventor Sharath Gopalakrishnamurthy
Sharath Gopalakrishnamurthy 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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Patent number: 11911270Abstract: The present embodiments provide a medical device for implantation in a patient comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.Type: GrantFiled: January 13, 2023Date of Patent: February 27, 2024Assignee: Cook Medical Technologies LLCInventors: Timothy A. Chuter, Blayne A. Roeder, Sharath Gopalakrishnamurthy, Alan R. Leewood
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Publication number: 20230255759Abstract: The present embodiments provide a medical device for implantation in a patient comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.Type: ApplicationFiled: January 13, 2023Publication date: August 17, 2023Applicant: Cook Medical Technologies LLCInventors: Timothy A. Chuter, Blayne A. Roeder, Sharath Gopalakrishnamurthy, Alan R. Leewood
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Patent number: 11602428Abstract: The present embodiments provide a medical device for implantation in a patient comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.Type: GrantFiled: June 26, 2020Date of Patent: March 14, 2023Assignee: Cook Medical Technologies LLCInventors: Timothy A. Chuter, Blayne A. Roeder, Sharath Gopalakrishnamurthy, Alan R. Leewood
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Patent number: 11554011Abstract: The present embodiments provide a medical device for implantation in a patient comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.Type: GrantFiled: June 26, 2020Date of Patent: January 17, 2023Assignee: Cook Medical Technologies LLCInventors: Timothy A. Chuter, Blayne A. Roeder, Sharath Gopalakrishnamurthy, Alan R. Leewood
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Publication number: 20200323632Abstract: The present embodiments provide a medical device for implantation in a patient comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Applicant: Cook Medical Technologies LLCInventors: Timothy A. Chuter, Blayne A. Roeder, Sharath Gopalakrishnamurthy, Alan R. Leewood
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Publication number: 20200323631Abstract: The present embodiments provide a medical device for implantation in a patient comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Applicant: Cook Medical Technologies LLCInventors: Timothy A. Chuter, Blayne A. Roeder, Sharath Gopalakrishnamurthy, Alan R. Leewood
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Patent number: 10695171Abstract: The present embodiments provide a medical device for implantation in a patient-comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.Type: GrantFiled: December 14, 2017Date of Patent: June 30, 2020Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Timothy A. Chuter, Blayne A. Roeder, Sharath Gopalakrishnamurthy, Alan R. Leewood
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Publication number: 20180104054Abstract: The present embodiments provide a medical device for implantation in a patient-comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.Type: ApplicationFiled: December 14, 2017Publication date: April 19, 2018Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: Timothy A. Chuter, Blayne A. Roeder, Sharath Gopalakrishnamurthy, Alan R. Leewood
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Patent number: 9757263Abstract: A stent graft (40) for treating Type-A dissections in the ascending aorta (22) is provided with a plurality of diameter-reducing suture loops (56-60) operable to constrain the stent graft during deployment thereof in a patient's aorta. The diameter-reducing loops (56-60) allow the stent graft (40) to be partially deployed, in such a manner that its location can be precisely adjusted in the patient's lumen. In this manner, the stent graft can be placed just by the coronary arteries (26, 28) with confidence that these will not be blocked. The stent graft (40) is also provided with proximal and distal bare stents (44,52) for anchoring purposes.Type: GrantFiled: November 12, 2010Date of Patent: September 12, 2017Assignee: Cook Medical Technologies LLCInventors: Blayne A. Roeder, Jarin Kratzberg, William K. Dierking, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Møgelvang Jensen
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Publication number: 20170252146Abstract: A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.Type: ApplicationFiled: May 24, 2017Publication date: September 7, 2017Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A.M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew S. Huser
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Patent number: 9717611Abstract: A stent graft (40) for treating Type-A dissections in the ascending aorta (22) is provided with a plurality of diameter reducing suture loops (56-60) operable to constrain the stent graft during deployment thereof in a patient's aorta. The diameter reducing loops (56-60) allow the stent graft (40) to be partially deployed, in such a manner that its location can be precisely adjusted in the patient's lumen. In this manner, the stent graft can be placed just by the coronary arteries (26, 28) with confidence that these will not be blocked. The stent graft (40) is also provided with proximal and distal bare stents (44,52) for anchoring purposes.Type: GrantFiled: November 15, 2010Date of Patent: August 1, 2017Assignee: Cook Medical Technologies LLCInventors: Kim Moegelvang Jensen, Bent Oehlenschlaeger, Erik Rasmussen, Steven J. Charlebois, William K. Dierking, Jarin Kratzberg, Blayne A. Roeder, Richard A. Swift, Sharath Gopalakrishnamurthy
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Patent number: 9687336Abstract: A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.Type: GrantFiled: October 6, 2015Date of Patent: June 27, 2017Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A. M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew S. Huser
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Publication number: 20160262869Abstract: A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.Type: ApplicationFiled: May 20, 2016Publication date: September 15, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A.M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew Huser, Jarin Kratzberg, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Moegelvang Jensen
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Patent number: 9345595Abstract: A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.Type: GrantFiled: June 2, 2014Date of Patent: May 24, 2016Assignee: Cook Medical Technologies LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A. M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew Huser, Jarin Kratzberg, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Møgelvang Jensen
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Publication number: 20160074183Abstract: Various stents and stent-graft systems for treatment of medical conditions are disclosed. In one embodiment, an exemplary stent-graft system may be used for endovascular treatment of a thoracic aortic aneurysm. The stent-graft system may comprise proximal and distal components, each comprising a graft having proximal and distal ends, where upon deployment the proximal and distal components at least partially overlap with one another to provide a fluid passageway therebetween. The proximal component may comprise a proximal stent having a plurality of proximal and distal apices connected by a plurality of generally straight portions, where a radius of curvature of at least one of the proximal apices may be greater than the radius of curvature of at least one of the distal apices. The distal component may comprise a proximal z-stent coupled to the graft, where the proximal end of the graft comprises at least scallop formed therein that generally follows the shape of the proximal z-stent.Type: ApplicationFiled: November 25, 2015Publication date: March 17, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A.M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew S. Huser
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Publication number: 20160022412Abstract: A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.Type: ApplicationFiled: October 6, 2015Publication date: January 28, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A.M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew S. Huser
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Patent number: 9226813Abstract: Various stents and stent-graft systems for treatment of medical conditions are disclosed. In one embodiment, an exemplary stent-graft system may be used for endovascular treatment of a thoracic aortic aneurysm. The stent-graft system may comprise proximal and distal components, each comprising a graft having proximal and distal ends, where upon deployment the proximal and distal components at least partially overlap with one another to provide a fluid passageway therebetween. The proximal component may comprise a proximal stent having a plurality of proximal and distal apices connected by a plurality of generally straight portions, where a radius of curvature of at least one of the proximal apices may be greater than the radius of curvature of at least one of the distal apices. The distal component may comprise a proximal z-stent coupled to the graft, where the proximal end of the graft comprises at least scallop formed therein that generally follows the shape of the proximal z-stent.Type: GrantFiled: October 14, 2010Date of Patent: January 5, 2016Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A. M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew S. Huser
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Patent number: 9198787Abstract: A delivery system may include a stent-graft, a locking member, and one or more diameter reducing members. The stent-graft may include a tubular graft comprising first and second longitudinally extending sides disposed opposite each other and connected at a tangent line. When the locking member is in a locked position, the locking member restrains a surface of the graft against the cannula. The first diameter reducing member may be slidably connected to a first portion of the graft that is disposed proximate the tangent line and may be slidably connected to a second portion of the graft that is spaced circumferentially away from the tangent line. When the first diameter reducing member is in a restrained position, the second portion of the graft is drawn toward the first portion of the graft and the proximal portion of the stent-graft has a reduced diameter configuration with at least two lobes.Type: GrantFiled: December 20, 2011Date of Patent: December 1, 2015Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Jarin Kratzberg, William Kurt Dierking, Sharath Gopalakrishnamurthy, Blayne A. Roeder
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Patent number: 9180030Abstract: A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.Type: GrantFiled: December 11, 2008Date of Patent: November 10, 2015Assignee: Cook Medical Technologies LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A. M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew S. Huser, Jarin Kratzberg, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Mogelvang Jensen
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Patent number: 9060853Abstract: The present embodiments provide stents and stent-grafts for use in medical procedures. In one embodiment, a stent comprises a series of proximal apices, a series of distal apices, and at least one imaging element. A first suture bore is disposed in a surface of the stent at a location distal to the imaging element, and is adapted to receive a suture for coupling a portion of the stent to a graft material. A distal region of the stent, including the series of distal apices and the first suture bore, overlaps with the graft material, while a proximal region of the stent, including the series of proximal apices and at least one barb, is disposed proximally beyond the graft material. In an alternative embodiment, a stent-graft comprises a graft, a first stent and a second stent, in which a series of proximal apices of the first stent are each disposed distal to the proximal end of the graft, and a series of proximal apices of the second stent are each disposed proximally beyond the proximal end of the graft.Type: GrantFiled: October 17, 2013Date of Patent: June 23, 2015Assignee: Cook Medical Technologies LLCInventors: Blayne A. Roeder, Erik E. Rasmussen, Sharath Gopalakrishnamurthy, William K. Dierking