Patents by Inventor Rajesh Radhakrishnan

Rajesh Radhakrishnan 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: 20120226346
    Abstract: In at least one embodiment, a stent comprises an expandable framework comprising a plurality of serpentine bands and a plurality of connector struts. Each serpentine band comprises a plurality of alternating struts and turns. A plurality of the serpentine bands each have their proximal turns aligned on a common stent circumference and comprise first distal turns and second distal turns. The first distal turns are aligned with one another on a common stent circumference. The second distal turns aligned with one another on another common stent circumference. Each band in the plurality comprises first struts and second struts. Each first strut is attached between a proximal turn and a first distal turn, and each second strut is attached between a proximal turn and a second distal turn. The second struts are wider than said first struts.
    Type: Application
    Filed: September 22, 2011
    Publication date: September 6, 2012
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Dennis A. Boismier, Sumit Agrawal, Michael P. Meyer, Rajesh Radhakrishnan
  • Patent number: 8216632
    Abstract: A method includes: providing a tubular substrate in a chamber, the tubular substrate having a lumen, an a luminal surface and a luminal surface; providing a target in the lumen; depositing a first coating onto the abluminal surface and a second coating onto the luminal surface while keeping the tubular substrate in the chamber. An endoprosthesis, such as a stent, including a first coating on at least one portion of its abluminal surface and a second coating on at least one portion of its luminal surface is also disclosed.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: July 10, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Victor Schoenle, Scott R. Schewe, Rajesh Radhakrishnan
  • Patent number: 8187620
    Abstract: The invention relates generally to a medical device, such as an intravascular stent, for delivering a therapeutic agent to the body tissue of a patient, and a method for making such a medical device. More particularly, the invention pertains to a medical device having a metal oxide or metal material with a plurality of pores therein disposed on the surface of the medical device and a polymer disposed on the metal oxide or metal material. The invention also relates to medical devices having a surface and an outer region comprising a metal oxide or metal material having a plurality of pores therein and a polymer disposed on the metal oxide or metal material.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: May 29, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Chandru Chandrasekaran, Rajesh Radhakrishnan
  • Publication number: 20120117422
    Abstract: In general, embodiments of the present invention provide a DR solution for a networked computing environment such as a cloud computing environment. Specifically, a customer or the like can select a disaster recovery provider from a pool (at least one) of disaster recovery providers using a customer interface to a DR portal. Similarly, using the interface and DR portal, the customer can then submit a request for DR to be performed for a set (at least one) of applications. The customer will then also submit (via the interface and DR portal) DR information. This information can include, among other things, a set of application images, a set of application files, a set of recovery requirements, a designation of one or more specific (e.g., application) components for which DR is desired, dump file(s), database file(s), etc. Using the DR information, the DR provider will then generate and conduct a set of DR tests and provide the results to the customer via the DR portal and interface.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 10, 2012
    Applicant: International Business Machines Corporation
    Inventor: Rajesh Radhakrishnan
  • Publication number: 20120095396
    Abstract: A medical balloon having an inner surface and an outer surface comprising a first coating composition comprising at least one therapeutic agent, the first coating composition disposed on the balloon outer surface and forming an interface between the balloon outer surface and the first coating composition and a second coating composition comprising a bioadhesive, the second coating composition disposed on the first coating composition so as to not affect the interface between the balloon outer surface and the first coating composition, the bioadhesive selected so as to adhere to body tissue, and methods of making the same.
    Type: Application
    Filed: August 16, 2011
    Publication date: April 19, 2012
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Rajesh Radhakrishnan, Steve Larsen, Scott Schewe, James Feng, Robert Warner, Martyn Folan, Aiden Flanagan, John Clarke, Tim O'Connor, Anthony Malone
  • Patent number: 8118857
    Abstract: A medical article that includes (a) an electronically conductive substrate having a specific conductivity of at least 1 ?S/cm and (b) a galvanic couple that includes a first member and a second member arranged in sufficient proximity to each other to generate a localized electric field under physiological conditions. The first and second members are selected such that the galvanic couple exhibits an average plateau current density of at least 25 microamps/cm2 when short circuited in a zero resistance ammeter test at room temperature using a saline electrolyte.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: February 21, 2012
    Assignee: Boston Scientific Corporation
    Inventors: Daniel VanCamp, Rajesh Radhakrishnan, Eric Nielson, Verivada Chandrasekaran
  • Publication number: 20120022585
    Abstract: This disclosure pertains to controllably bioabsorbable devices, particularly anchors for vascular closure plugs and to methods of use thereof.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 26, 2012
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Liliana Atanasoska, David J. Sogard, Robert W. Warner, Michael Root, Rajesh Radhakrishnan, Mourad Rahi, Scott R. Smith, Jan Weber, Eric Petersen
  • Publication number: 20110282436
    Abstract: A stent includes a MOF which adjusts pore size upon desorption or adsorption of organic molecules.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 17, 2011
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Mourad Rahi, Liliana Atanasoska, Rajesh Radhakrishnan, Robert W. Warner, Barry Cool
  • Publication number: 20110282431
    Abstract: A medical device is provided with a porous region including a reservoir zone including a polymer and a protective zone between adjacent tissue and the reservoir zone that restricts the tissue from direct contact with the polymer.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 17, 2011
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Rajesh Radhakrishnan, Liliana Atanasoska, Scott R. Schewe, Kenneth M. Merdan
  • Publication number: 20110238153
    Abstract: Endoprostheses include an endoprosthesis wall that includes a surface layer that includes a metallic material and that defines a plurality of discrete pores. A porous material is disposed in one or more pores of the surface layer. The endoprostheses can, for example, deliver a therapeutic agent, such as a drug, in a controlled manner over an extended period of time.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 29, 2011
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Liliana Atanasoska, Angela Kostrewa, Rajesh Radhakrishnan, Robert W. Warner, Lagiang Tran, James Lee Shippy, III, Edward E. Parsonage
  • Publication number: 20110238149
    Abstract: Endoprostheses and methods of making endoprostheses are disclosed. For example, endoprostheses are described that include an endoprosthesis body, a biodegradable metallic tie layer, and a polymer coating about the endoprosthesis body. The biodegradable tie layer and the polymer coating can have a high peel strength from the body.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 29, 2011
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Liliana Atanasoska, Angela Kostrewa, Matthew Cambronne, James Q. Feng, Rajesh Radhakrishnan
  • Publication number: 20110225017
    Abstract: Embodiments of the present invention provide a solution for service-supporting resources (e.g., IT resources such as processor, storage, network, etc.). Specifically, the present invention will first create a resource configuration data repository that includes resource scaling capabilities (e.g., dynamic scaling, automated aggregation, concurrent scaling needs of specific resources such as file system and database table space, storage zoning and input/output multi-pathing, etc.) of a set of IT resources. A unit of work data repository that includes details of jobs handled by the IT resources will also be included. Then, a profile will be created for the set of IT resources. In a typical embodiment, the profile includes information related to a service demand, a capacity, a utilization, and a performance of the set of IT resources. Resource utilization and performance data (e.g., historical and/or real-time data) will then be collected.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 15, 2011
    Applicant: International Business Machines Corporation
    Inventor: Rajesh Radhakrishnan
  • Patent number: 7998192
    Abstract: An endoprosthesis includes a body defining a flow passage therethrough. The body is capable of maintaining patency in a blood vessel and includes iron or an alloy thereof. The body has a nano-structured surface comprising iron oxide in which the individual nano-structures have a height to thickness aspect ratio of at least 5:1.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: August 16, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Liliana Atanasoska, Rajesh Radhakrishnan, Ben Arcand, Robert W. Warner
  • Publication number: 20110196347
    Abstract: In one aspect, the present invention provides therapeutic-agent-releasing medical devices which comprise at least one region of piezoelectric material. Therapeutic agent release is initiated or increased when the piezoelectric material is subjected to mechanical stress, which leads to the development of a voltage across the piezoelectric material. This voltage is used to initiate or increase therapeutic agent release.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 11, 2011
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Liliana Atansoska, Rajesh Radhakrishnan, Scott Schewe
  • Patent number: 7985252
    Abstract: An endoprosthesis includes a plurality of struts defining a flow passage. At least one strut includes (a) a body comprising a bioerodible material and having a thickness and (b) a coating overlying the body. The coating includes a plurality of regions that allow physiological fluids to contact a plurality of corresponding areas of the underlying body when the endoprosthesis is implanted in a physiological environment. The plurality of regions are sized and arranged so that the contacted areas of the body erode substantially through the body in the thickness direction while the coating remains on the body when the endoprosthesis is implanted in the physiological environment.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: July 26, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Rajesh Radhakrishnan, Chandru Chandrasekaran, Scott R. Schewe, Ken Merdan
  • Publication number: 20110160839
    Abstract: An endoprosthesis, e.g., a bioerodable stent, that is treated by plasma immersion ion implantation on the surface and optionally in the bulk. Releasable therapeutic agent, drug, or pharmaceutically active compound may be incorporated into the treated surface of the endoprosthesis to provide desired medical benefits.
    Type: Application
    Filed: December 29, 2009
    Publication date: June 30, 2011
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Jan Weber, Liliana Atanasoska, Rajesh Radhakrishnan
  • Publication number: 20110118826
    Abstract: An endoprosthesis includes a plurality of struts defining a flow passage. At least one strut includes (a) a body comprising a bioerodible material and having a thickness and (b) a coating overlying the body. The coating includes a plurality of regions that allow physiological fluids to contact a plurality of corresponding areas of the underlying body when the endoprosthesis is implanted in a physiological environment. The plurality of regions are sized and arranged so that the contacted areas of the body erode substantially through the body in the thickness direction while the coating remains on the body when the endoprosthesis is implanted in the physiological environment.
    Type: Application
    Filed: January 26, 2011
    Publication date: May 19, 2011
    Applicant: Boston Scientific SciMed. Inc.
    Inventors: Rajesh Radhakrishnan, Chandru Chandrasekaran, Scott R. Schewe, Ken Merdan
  • Patent number: 7935379
    Abstract: The present invention relates generally to coated medical devices, preferably a stent, that has a drug-eluting surface completely or partially coated with a coating that is imprinted with an impression. In particular, the invention is directed to a coated medical device having a coating that comprises biologically active materials, polymers, or a combination thereof. The coating is imprinted with an impression by printing, molding, lithography, or embossing techniques. Preferably, the patterning imprinted on the coating is capable of releasing biologically active materials in different amounts, at different rates, and/or at different time periods. The invention also relates to methods of making and methods of using the coated medical device.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: May 3, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Rajesh Radhakrishnan, Chandru Chandrasekaran
  • Publication number: 20100318020
    Abstract: A therapeutic agent delivery device and method for eluting a therapeutic agent to a target location are disclosed. The device may comprise a first conductive element, a second conductive element, an electrochemical composition including an electrolyte and a therapeutic agent, and a permeable membrane covering the electrochemical composition. The first conductive element and the second conductive element are adapted to be connected to a voltage source. When the voltage source is connected to the first conductive element and the second conductive element, an electrochemical reaction occurs causing the therapeutic agent to pass through the permeable membrane and thereby to elute to a target location.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 16, 2010
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Liliana ATANASOSKA, Rajesh RADHAKRISHNAN, Robert W. WARNER
  • Publication number: 20100272882
    Abstract: A coating having a smooth orange peel morphology is formed on an adluminal surface of a stent, concurrently with the formation of a coating having a rough rice grain morphology on an abluminal surface of the stent. During the formation of the two coatings, a mandrel is placed adjacent to the adluminal surface of the stent but does not generally contact the adluminal surface.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Rajesh Radhakrishnan, Scott R. Schewe, Victor Schoenle