Patents by Inventor Prema Ganesan

Prema Ganesan 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: 20190314138
    Abstract: A polymer coating/ring is employed to aid in the sealing and connection of modular elements used in body flow lumens for the exclusion and bypass of diseased regions of the flow lumen, such as where aneurysm occurs adjacent to branching blood vessels.
    Type: Application
    Filed: May 30, 2019
    Publication date: October 17, 2019
    Inventors: Prema Ganesan O'Brien, Jonathan Morris, David R. Erickson, Matthew Rust, Curtis Hanson, Jack Chu, Charles Thomas
  • Patent number: 10307244
    Abstract: A polymer coating/ring is employed to aid in the sealing and connection of modular elements used in body flow lumens for the exclusion and bypass of diseased regions of the flow lumen, such as where aneurysm occurs adjacent to branching blood vessels.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: June 4, 2019
    Assignee: Medtronic Vascular, Inc.
    Inventors: Prema Ganesan, Jonathan Morris, David R. Erickson, Matthew Rust, Curtis Hanson, Jack Chu, Charles Thomas
  • Patent number: 9636439
    Abstract: A method and device for the treatment of an aneurysm are provided. Different therapeutic agents are delivered to the aneurysmal site by a reservoir and delivery means in a localized, and, in some embodiments, time-released regimen, to treat, limit and reduce the severity of the aneurysm.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: May 2, 2017
    Assignee: Medtronic Vascular, Inc.
    Inventors: Jack Chu, Dave Erickson, Prema Ganesan, Jonathan Morris
  • Patent number: 8715336
    Abstract: A stent graft includes at least one aperture extending through the main body thereof, into which an extension portion may be deployed for positioning within an adjacent branch flow lumen. The extension portions include self biasing features, wherein the extension is biased into engagement with the main body to seal the interface thereof. Additionally, the extension portion may be configured for tortuous or deviated anatomy, to enable sealing of the extension portion with the body while extending the extension portion in a substantially non-radial direction from the main body.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: May 6, 2014
    Assignee: Medtronic Vascular, Inc.
    Inventors: Jack Chu, David R. Erickson, Jonathon Morris, Prema Ganesan, Curtis Hanson, Matthew Rust, Charles Thomas, James Machek
  • Patent number: 8262719
    Abstract: A braided flange branch graft formed of a braided super elastic memory material includes a neck between an inner flange and an outer flange. The neck is positioned in a side opening in a sidewall of a main stent graft and the inner flange and outer flange are deployed on opposite sides of the sidewall. The inner flange and the outer flange have a diameter greater than a diameter of the side opening in the sidewall of the main stent graft. Thus, the sidewall of the main stent graft is sandwiched between the inner flange and the outer flange securely and simply mounting the braided flange branch graft to the main stent graft. The braided flange has a substantially unobstructed fluid communication passage therethrough. Further, when stretched into a substantially cylindrical shape for delivery, the braided flange branch graft has a small delivery profile and is extremely flexible.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: September 11, 2012
    Assignee: Medtronic Vascular, Inc.
    Inventors: David Erickson, Nasser Rafiee, Nareak Douk, Jonathan Morris, Curtis Hanson, Matthew Rust, Sonny Yamasaki, Prema Ganesan
  • Publication number: 20110196477
    Abstract: A polymer coating/ring is employed to aid in the sealing and connection of modular elements used in body flow lumens for the exclusion and bypass of diseased regions of the flow lumen, such as where aneurysm occurs adjacent to branching blood vessels.
    Type: Application
    Filed: April 21, 2011
    Publication date: August 11, 2011
    Applicant: Medtronic Vascular, Inc.
    Inventors: PREMA GANESAN, JONATHAN MORRIS, DAVE R. ERICKSON, MATTHEW RUST, CURTIS HANSON, JACK CHU, CHARLES THOMAS
  • Patent number: 7955374
    Abstract: Modular branch vessel stent-graft assemblies for the treatment arterial or vascular disease at the branch of two or more arteries or blood flow passageways, including, for example, abdominal aortic aneurysms are assembled in a patient's trunk/parent artery, from at least two components; a first component and a second component. The first and second components each include a first and second window, or fenestration. The second component couples with the first component by fitting at least partially in the first component to form the modular branch vessel stent-graft assembly with two selectively locatable branch openings. As the first and second components are deployed, the second component is selectively position able relative to first component so that the first and second component first and second windows overlap to form two branch openings whose longitudinal and angular positions are selectable within a range.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: June 7, 2011
    Assignee: Medtronic Vascular, Inc.
    Inventors: David R. Erickson, Prema Ganesan
  • Patent number: 7815656
    Abstract: The invention provides a method of providing an endovascular bypass. The method includes the steps of inserting an elastic needle carrying a guidewire adjacent an ostium via a catheter and extending the needle through a branch vessel wall. The method continues by extending the needle through the extravascular space and inserting the needle through a main vessel wall to create an opening. The needle is retracted, leaving the guidewire in place. A bypass stent graft is inserted along the guidewire to provide a pathway between the branch vessel and the main vessel, and the inserted bypass stent graft is expanded. The branch vessel is occluded between the ostium of the bypass stent graft and the main vessel, and a main stent graft is inserted in the main vessel proximate the opening in the main vessel wall.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: October 19, 2010
    Assignee: Medtronic Vascular, Inc.
    Inventors: Matthew Rust, Prema Ganesan, Curtis Hanson, Jack Chu
  • Publication number: 20100256726
    Abstract: A braided flange branch graft formed of a braided super elastic memory material includes a neck between an inner flange and an outer flange. The neck is positioned in a side opening in a sidewall of a main stent graft and the inner flange and outer flange are deployed on opposite sides of the sidewall. The inner flange and the outer flange have a diameter greater than a diameter of the side opening in the sidewall of the main stent graft. Thus, the sidewall of the main stent graft is sandwiched between the inner flange and the outer flange securely and simply mounting the braided flange branch graft to the main stent graft. The braided flange has a substantially unobstructed fluid communication passage therethrough. Further, when stretched into a substantially cylindrical shape for delivery, the braided flange branch graft has a small delivery profile and is extremely flexible.
    Type: Application
    Filed: June 15, 2010
    Publication date: October 7, 2010
    Applicant: Medtronic Vascular, Inc
    Inventors: David Erickson, Nasser Rafiee, Nareak Douk, Jonathan Morris, Curtis Hanson, Matthew Rust, Sonny Yamasaki, Prema Ganesan
  • Publication number: 20090259290
    Abstract: A method includes deploying a fenestration segment stent-graft into a main vessel such that a fenestration section of the fenestration segment stent-graft covers a first branch vessel emanating from the main vessel. The fenestration segment stent-graft includes a proximal section, a distal section, and the fenestration section attached to and between the proximal section and the distal section. The fenestration section has a greater resistance to tearing than the proximal section and the distal section facilitating formation of a collateral opening aligned with the branch vessel in the fenestration section.
    Type: Application
    Filed: April 14, 2008
    Publication date: October 15, 2009
    Applicant: Medtronic Vascular, Inc.
    Inventors: Walter Bruszewski, Trevor Greenan, Jack Chu, David Erickson, Jonathan Morris, Prema Ganesan, Curtis Hanson, Matthew Rust, Charles Thomas
  • Publication number: 20080262595
    Abstract: A stent graft includes at least one aperture extending through the main body thereof, into which an extension portion may be deployed for positioning within an adjacent branch flow lumen. The extension portions include self biasing features, wherein the extension is biased into engagement with the main body to seal the interface thereof. Additionally, the extension portion may be configured for tortuous or deviated anatomy, to enable sealing of the extension portion with the body while extending the extension portion in a substantially non-radial direction from the main body.
    Type: Application
    Filed: April 19, 2007
    Publication date: October 23, 2008
    Applicant: Medtronic Vascular, Inc.
    Inventors: Jack Chu, David R. Erickson, Jonathan Morris, Prema Ganesan, Curtis Hanson, Matthew Rust, Charles Thomas, James Machek
  • Publication number: 20080228256
    Abstract: A braided flange branch graft formed of a braided super elastic memory material includes a neck between an inner flange and an outer flange. The neck is positioned in a side opening in a sidewall of a main stent graft and the inner flange and outer flange are deployed on opposite sides of the sidewall. The inner flange and the outer flange have a diameter greater than a diameter of the side opening in the sidewall of the main stent graft. Thus, the sidewall of the main stent graft is sandwiched between the inner flange and the outer flange securely and simply mounting the braided flange branch graft to the main stent graft. The braided flange has a substantially unobstructed fluid communication passage therethrough. Further, when stretched into a substantially cylindrical shape for delivery, the braided flange branch graft has a small delivery profile and is extremely flexible.
    Type: Application
    Filed: March 13, 2007
    Publication date: September 18, 2008
    Applicant: Medtronic Vascular, Inc.
    Inventors: David Erickson, Nasser Rafiee, Nareak Douk, Jonathan Morris, Curtis Hanson, Matthew Rust, Sonny Yamasaki, Prema Ganesan
  • Publication number: 20080187524
    Abstract: The present invention encompasses methods and apparatus for minimizing the risks inherent in endovascular grafting for blood vessel therapy and repair. The invention involves delivering adult stem cells, embryonic stem cells, progenitor cells, fibroblasts, or smooth muscle cells to the diseased blood vessel.
    Type: Application
    Filed: April 3, 2008
    Publication date: August 7, 2008
    Applicant: Medtronic Vascular, Inc.
    Inventors: Brian Fernandes, Jack Chu, Prema Ganesan
  • Patent number: 7387645
    Abstract: The present invention encompasses methods and apparatus for minimizing the risks inherent in endovascular grafting for blood vessel therapy and repair. The invention involves delivering adult stem cells, embryonic stem cells, progenitor cells, fibroblasts, or smooth muscle cells to the diseased blood vessel.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 17, 2008
    Assignee: Medtronic Vascular, Inc.
    Inventors: Brian Fernandes, Jack Chu, Prema Ganesan
  • Patent number: 7371228
    Abstract: A method and device for the treatment of an aneurysm are provided. Different therapeutic agents are delivered to the aneurysmal site by a reservoir and delivery means in a localized, and, in some embodiments, time-released regimen, to treat, limit and reduce the severity of the aneurysm.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: May 13, 2008
    Assignee: Medtronic Vascular, Inc.
    Inventors: Jack Chu, Dave Erickson, Prema Ganesan, Jonathan Morris
  • Publication number: 20080097578
    Abstract: A modular graft assembly includes a main graft, a lower extender cuff and an upper extender cuff. By rotating and/or telescoping the main graft, the lower extender cuff, and the upper extender cuff relative to one another, variations in the radial and longitudinal positions of branch vessels are readily accommodated by the modular graft assembly. Accordingly, an aneurysm in a main vessel is excluded while at the same time collateral flow to branch vessels is provided. Further, custom fabrication of a graft assembly to accommodate the vessel structure of a particular patient and the associated costs are avoided.
    Type: Application
    Filed: October 20, 2006
    Publication date: April 24, 2008
    Applicant: Medtronic Vascular, Inc.
    Inventors: David Erickson, Prema Ganesan
  • Publication number: 20070239252
    Abstract: A method of using a delivery system includes advancing a stent to be located within an ostium of a vessel; advancing a basket actuation button of a handle to deploy a basket of the basket assembly; moving the basket into engagement with a parent vessel, the basket having a larger diameter than a diameter of the ostium; deploying the stent within an ostial lesion of the vessel; and contracting the basket.
    Type: Application
    Filed: April 10, 2006
    Publication date: October 11, 2007
    Applicant: Medtronic Vascular, Inc.
    Inventors: Darren Hopkins, Jack Chu, Jonathan Morris, James Machek, Prema Ganesan, Matthew Rust, Trevor Greenan, James Moriarty
  • Publication number: 20070231361
    Abstract: Methods of treating an aneurysm in a patient in need thereof are provided. The methods comprise delivering to a treatment site an effective amount of a fatty acid inhibitor of a matrix metalloproteinase (MMP) such that the fatty acid inhibitor of the MMP causes the regression of a pre-existing aneurysm. Additionally, an implantable medical device is provided for implanting in a vessel wall of a patient comprising a structural support and a fatty acid inhibitor of an MMP.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 4, 2007
    Applicant: Medtronic Vascular, Inc.
    Inventors: David Brin, Jack Chu, Prema Ganesan, Dianne Judd, Michel Letort, Patrice Tremble, Eugene Tedeschi
  • Publication number: 20070203565
    Abstract: The invention provides a method of providing an endovascular bypass. The method includes the steps of inserting an elastic needle carrying a guidewire adjacent an ostium via a catheter and extending the needle through a branch vessel wall. The method continues by extending the needle through the extravascular space and inserting the needle through a main vessel wall to create an opening. The needle is retracted, leaving the guidewire in place. A bypass stent graft is inserted along the guidewire to provide a pathway between the branch vessel and the main vessel, and the inserted bypass stent graft is expanded. The branch vessel is occluded between the ostium of the bypass stent graft and the main vessel, and a main stent graft is inserted in the main vessel proximate the opening in the main vessel wall.
    Type: Application
    Filed: August 11, 2006
    Publication date: August 30, 2007
    Inventors: Matthew Rust, Prema Ganesan, Curtis Hanson, Jack Chu
  • Publication number: 20070055350
    Abstract: Modular branch vessel stent-graft assemblies for the treatment arterial or vascular disease at the branch of two or more arteries or blood flow passageways, including, for example, abdominal aortic aneurysms are assembled in a patient's trunk/parent artery, from at least two components; a first component and a second component. The first and second components each include a first and second window, or fenestration. The second component couples with the first component by fitting at least partially in the first component to form the modular branch vessel stent-graft assembly with two selectively locatable branch openings. As the first and second components are deployed, the second component is selectively position able relative to first component so that the first and second component first and second windows overlap to form two branch openings whose longitudinal and angular positions are selectable within a range.
    Type: Application
    Filed: September 2, 2005
    Publication date: March 8, 2007
    Applicant: Medtronic Vascular, Inc.
    Inventors: David Erickson, Prema Ganesan