Patents by Inventor Murthy Simhambhatla

Murthy Simhambhatla 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: 8821473
    Abstract: Methods, devices, kits and compositions to treat a myocardial infarction. In one embodiment, the method includes the prevention of remodeling of the infarct zone of the ventricle. In other embodiments, the method includes the introduction of structurally reinforcing agents. In other embodiments, agents are introduced into a ventricle to increase compliance of the ventricle. In an alternative embodiment, the prevention of remodeling includes the prevention of thinning of the ventricular infarct zone. In another embodiment, the prevention of remodeling and thinning of the infarct zone involves the cross-linking of collagen and prevention of collagen slipping. In other embodiments, the structurally reinforcing agent may be accompanied by other therapeutic agents. These agents may include but are not limited to pro-fibroblastic and angiogenic agents.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: September 2, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Eugene T. Michal, Evgenia Mandrusov, Charles D. Claude, Ni Ding, Murthy Simhambhatla, Syed Faiyaz Ahmed Hossainy, Srinivasan Sridharan, Paul Consigny
  • Patent number: 8747385
    Abstract: Methods, devices, kits and compositions to treat a myocardial infarction. In one embodiment, the method includes the prevention of remodeling of the infarct zone of the ventricle. In other embodiments, the method includes the introduction of structurally reinforcing agents. In other embodiments, agents are introduced into a ventricle to increase compliance of the ventricle. In an alternative embodiment, the prevention of remodeling includes the prevention of thinning of the ventricular infarct zone. In another embodiment, the prevention of remodeling and thinning of the infarct zone involves the cross-linking of collagen and prevention of collagen slipping. In other embodiments, the structurally reinforcing agent may be accompanied by other therapeutic agents. These agents may include but are not limited to pro-fibroblastic and angiogenic agents.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: June 10, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Eugene T. Michal, Evgenia Mandrusov, Charles D. Claude, Ni Ding, Murthy Simhambhatla, Syed Faiyez Ahmed Hossainy, Srinivasan Sridharan, Paul Consigny
  • Patent number: 8652194
    Abstract: An apparatus and method to treat vulnerable plaque. In one embodiment, the apparatus has a medical device to treat an occlusive plaque, and is also adapted to release a biologically active agent to treat vulnerable plaque located downstream from the occlusive plaque. In an alternative embodiment, the apparatus has an expandable tube attached to the inner surface of a stent, and a layer of endothelial cells seeded on the inner surface of the expandable tube. The expandable tube shields a vulnerable plaque from a body lumen.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: February 18, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Deborah Kilpatrick, Murthy Simhambhatla, Santosh Prabhu, Shawn Chin Quee
  • Patent number: 8613764
    Abstract: An apparatus and method to treat vulnerable plaque. In one embodiment, the apparatus has a medical device to treat an occlusive plaque, and is also adapted to release a biologically active agent to treat vulnerable plaque located downstream from the occlusive plaque. In an alternative embodiment, the apparatus has an expandable tube attached to the inner surface of a stent, and a layer of endothelial cells seeded on the inner surface of the expandable tube. The expandable tube shields a vulnerable plaque from a body lumen.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: December 24, 2013
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Deborah Kilpatrick, Murthy Simhambhatla, Santosh Prabhu, Shawn Chin Quee
  • Patent number: 8383158
    Abstract: Methods, devices, kits and compositions to treat a myocardial infarction. In one embodiment, the method includes the prevention of remodeling of the infarct zone of the ventricle. In other embodiments, the method includes the introduction of structurally reinforcing agents. In other embodiments, agents are introduced into a ventricle to increase compliance of the ventricle. In an alternative embodiment, the prevention of remodeling includes the prevention of thinning of the ventricular infarct zone. In another embodiment, the prevention of remodeling and thinning of the infarct zone involves the cross-linking of collagen and prevention of collagen slipping. In other embodiments, the structurally reinforcing agent may be accompanied by other therapeutic agents. These agents may include, but are not, limited to pro-fibroblastic and angiogenic agents.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: February 26, 2013
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Eugene T. Michal, Evgenia Mandrusov, Charles D. Claude, Ni Ding, Murthy Simhambhatla, Syed Faiyez Ahmed Hossainy, Srinivasan Sridharan, Paul Consigny
  • Publication number: 20100144635
    Abstract: Methods, devices, kits and compositions to treat a myocardial infarction. In one embodiment, the method includes the prevention of remodeling of the infarct zone of the ventricle. In other embodiments, the method includes the introduction of structurally reinforcing agents. In other embodiments, agents are introduced into a ventricle to increase compliance of the ventricle. In an alternative embodiment, the prevention of remodeling includes the prevention of thinning of the ventricular infarct zone. In another embodiment, the prevention of remodeling and thinning of the infarct zone involves the cross-linking of collagen and prevention of collagen slipping. In other embodiments, the structurally reinforcing agent may be accompanied by other therapeutic agents. These agents may include but are not limited to pro-fibroblastic and angiogenic agents.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 10, 2010
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Eugene T. Michal, Evgenia Mandrusov, Charles D. Claude, Ni Ding, Murthy Simhambhatla, Syed Faiyaz Ahmed Hossainy, Srinivasan Sridharan, Paul Consigny
  • Patent number: 7641643
    Abstract: Methods, devices, kits and compositions to treat a myocardial infarction. In one embodiment, the method includes the prevention of remodeling of the infarct zone of the ventricle. In other embodiments, the method includes the introduction of structurally reinforcing agents. In other embodiments, agents are introduced into a ventricle to increase compliance of the ventricle. In an alternative embodiment, the prevention of remodeling includes the prevention of thinning of the ventricular infarct zone. In another embodiment, the prevention of remodeling and thinning of the infarct zone involves the cross-linking of collagen and prevention of collagen slipping. In other embodiments, the structurally reinforcing agent may be accompanied by other therapeutic agents. These agents may include but are not limited to pro-fibroblastic and angiogenic agents.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: January 5, 2010
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Eugene T. Michal, Evgenia Mandrusov, Charles D. Claude, Nadine Ding, Murthy Simhambhatla, Syed Faiyez Ahmed Hossainy, Srinivasan Sridharan, Paul Consigny
  • Patent number: 7470469
    Abstract: A medical device comprising a substrate having a plasma polymerized functionality bonded to at least a portion of the substrate. A superoxide dismutase mimic agent having a complimentary functional group to the plasma polymerized functionality is bonded to the portion of the substrate by bonding to the plasma polymerized functionality. The functionalities can be carboxylate, amine, or sulfate groups and/or polyethylene glycol and can optionally include crosslinking groups.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: December 30, 2008
    Assignee: Advanced Cardiovascular Systems Inc.
    Inventors: Eugene T. Michal, Murthy Simhambhatla, Charles D. Claude
  • Publication number: 20080125851
    Abstract: An apparatus and method to treat vulnerable plaque. In one embodiment, the apparatus has a medical device to treat an occlusive plaque, and is also adapted to release a biologically active agent to treat vulnerable plaque located downstream from the occlusive plaque. In an alternative embodiment, the apparatus has an expandable tube attached to the inner surface of a stent, and a layer of endothelial cells seeded on the inner surface of the expandable tube. The expandable tube shields a vulnerable plaque from a body lumen.
    Type: Application
    Filed: January 31, 2008
    Publication date: May 29, 2008
    Inventors: Deborah Kilpatrick, Murthy Simhambhatla, Santosh Prabhu, Shawn Chin Quee
  • Patent number: 7326238
    Abstract: An apparatus and method to treat vulnerable plaque. In one embodiment, the apparatus has a medical device to treat an occlusive plaque, and is also adapted to release a biologically active agent to treat vulnerable plaque located downstream from the occlusive plaque. In an alternative embodiment, the apparatus has an expandable tube attached to the inner surface of a stent, and a layer of endothelial cells seeded on the inner surface of the expandable tube. The expandable tube shields a vulnerable plaque from a body lumen.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: February 5, 2008
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Deborah Kilpatrick, Murthy Simhambhatla, Santosh Prabhu, Shawn Chin Quee
  • Patent number: 7311970
    Abstract: A medical device comprising a substrate having a plasma polymerized functionality bonded to at least a portion of the substrate. A superoxide dismutase mimic agent having a complimentary functional group to the plasma polymerized functionality is bonded to the portion of the substrate by bonding to the plasma polymerized functionality.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: December 25, 2007
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Eugene T. Michal, Murthy Simhambhatla, Charles D. Claude
  • Publication number: 20070190103
    Abstract: The present invention relates to an implantable medical device comprising therapeutic agents coated on the device using polyesters for the drug reservoir layer that exhibit surface-eroding characteristics.
    Type: Application
    Filed: February 10, 2006
    Publication date: August 16, 2007
    Inventors: Syed Hossainy, Stephen Pacetti, Murthy Simhambhatla
  • Publication number: 20070110787
    Abstract: Coatings for implantable medical devices including nanoparticles incorporating an active agent, and methods for fabricating the coatings.
    Type: Application
    Filed: December 21, 2006
    Publication date: May 17, 2007
    Inventors: Syed Hossainy, Murthy Simhambhatla
  • Publication number: 20060265043
    Abstract: Various apparatuses and methods are described to treat vulnerable plaque with the use of combination drug therapy. In one embodiment, the apparatus has an elongated catheter body adapted for insertion in a body lumen, with a drug delivery device attached near a distal portion of the elongated body. The drug delivery device is configured to deliver a therapeutic or biologically active agent to stabilize a vulnerable plaque. In another embodiment, a drug eluting stent is delivered and deployed in conjunction with a second apparatus that delivers drug in pressurized retrograde perfusion. Still another embodiment uses a uniquely shaped balloon to deploy a stent while utilizing a drug infusion needle to inject drug into the vessel wall through a hollow guide wire.
    Type: Application
    Filed: March 24, 2006
    Publication date: November 23, 2006
    Inventors: Evgenia Mandrusov, Deborah Kilpatrick, Murthy Simhambhatla, Syed Hossainy, Jessica Chiu, Mina Chow, Eugene Michal, Charles Claude, William Webler
  • Publication number: 20060135943
    Abstract: An apparatus and method to treat vulnerable plaque. In one embodiment, the apparatus has an elongated catheter body adapted for insertion in a body lumen, with a drug delivery device attached near a distal portion of the elongated body. The drug delivery device is configured to deliver a biologically active agent to stabilize a vulnerable plaque.
    Type: Application
    Filed: November 17, 2005
    Publication date: June 22, 2006
    Inventors: Evgenia Mandrusov, Deborah Kilpatrick, Murthy Simhambhatla, Syed Hossainy
  • Publication number: 20060062821
    Abstract: Polycationic peptide coatings for implantable medical devices and methods of making the same are described. The methods include applying an emulsion on the device, the emulsion including a polymer and a polycationic peptide. Other methods include incorporation of the polycationic peptide in microspheres and liposomes.
    Type: Application
    Filed: September 2, 2005
    Publication date: March 23, 2006
    Inventors: Murthy Simhambhatla, Ni Ding, Stephen Pacetti
  • Patent number: 7008411
    Abstract: An apparatus and method to treat vulnerable plaque. In one embodiment, the apparatus has an elongated catheter body adapted for insertion in a body lumen, with a drug delivery device attached near a distal portion of the elongated body. The drug delivery device is configured to deliver a biologically active agent to stabilize a vulnerable plaque.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: March 7, 2006
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Evgenia Mandrusov, Deborah Kilpatrick, Murthy Simhambhatla, Syed Hossainy
  • Publication number: 20050222584
    Abstract: A method of treating vulnerable plaque comprising intentionally damaging or rupturing the vulnerable plaque using a wingless balloon which is inflated from a wingless unexpanded diameter to a limited expanded diameter. This process produces significant increase in ECM synthesis at the site of the damage or rupture. As a result, the method strengthens the vulnerable plaque while minimizing or avoiding damage to the surrounding wall of the body lumen or damaging a stable plaque mistakenly believed to be a vulnerable plaque. The method of the invention is particularly useful in treating a fibroatheroma type of vulnerable plaque. In one embodiment, the balloon is self-limiting such that it expands compliantly at initial inflation pressures, and above nominal pressure it expands noncompliantly. In an alternative embodiment, the balloon is inflated using a diameter-limiting device, such as a device which limits the inflation pressure or the volume of inflation fluid in the balloon.
    Type: Application
    Filed: May 26, 2005
    Publication date: October 6, 2005
    Inventors: Deborah Kilpatrick, Robert Ainsworth, Murthy Simhambhatla, Jeong Lee
  • Publication number: 20050031874
    Abstract: A medical device comprising a substrate having a plasma polymerized functionality bonded to at least a portion of the substrate. A superoxide dismutase mimic agent having a complimentary functional group to the plasma polymerized functionality is bonded to the portion of the substrate by bonding to the plasma polymerized functionality.
    Type: Application
    Filed: September 17, 2004
    Publication date: February 10, 2005
    Inventors: Eugene Michal, Murthy Simhambhatla, Charles Claude
  • Publication number: 20050003011
    Abstract: A method including forming a pseudo-gel of a semi-crystalline polymer material and a solvent. The pseudo-gel is shaped into a first form and stretched. A portion of the solvent is removed to create a second form. The second form is stretched into a microstructure including nodes interconnected by fibrils. A method including forming a first form of a pseudo-gel including an ultra-high molecular weight polyethylene material and a solvent; stretching the first form; removing the solvent to form a second form; stretching the second form into a microstructure including nodes interconnected by fibrils; and annealing the stretched second form. An apparatus including a body portion formed of a dimension suitable for a medical device application and including a polyolefin polymer including a node and a fibril microstructure. An apparatus including a body portion including an ultra-high molecular weight polyolefin material including a node and a fibril microstructure.
    Type: Application
    Filed: July 15, 2004
    Publication date: January 6, 2005
    Inventors: Srinivasan Sridharan, Murthy Simhambhatla