Patents by Inventor Tejal Desai

Tejal Desai 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: 20190119462
    Abstract: Polycaprolactone (PCL) scaffolds having macropores interconnected with micorpores are provided. Tissue grafts that include the PCL scaffold having therapeutic cells encapsulated within the macropores are also provided. Also provided are methods of making the PCL scaffold and the tissue graft, and methods of transplanting cells into an individual using the tissue graft.
    Type: Application
    Filed: June 13, 2017
    Publication date: April 25, 2019
    Applicant: The Regents of the University of California
    Inventors: Tejal A. Desai, Ryan Chang, Jasper Z. Williams
  • Publication number: 20190093069
    Abstract: Thin film devices, e.g., multilayer thin film devices, that encapsulate cells for transplantation into a subject are provided. Also provided are methods of using and methods of preparing the subject devices. The thin film devices include a first porous polymer layer and a second porous polymer layer that define a lumen therebetween and encapsulate a population of cells within the lumen. The thin film devices can promote vascularization into the lumen of the device via the pores in the first polymer layer and/or second polymer layer; limit foreign body response to the device; limit ingress of cells, immunoglobulins, and cytokines into the lumen via the first and the second polymer layers; and release from the first polymer layer and/or the second polymer layer molecules secreted by the population of cells.
    Type: Application
    Filed: August 24, 2018
    Publication date: March 28, 2019
    Inventors: Tejal A. Desai, Crystal Nyitray, Ryan Chang
  • Publication number: 20190030281
    Abstract: An insertion device for delivering media inside a patient includes an outer guide tube having a side port. An inner guide tube is nested within the outer guide tube and movable axially within the outer guide tube. The inner guide tube includes a deflector at an end within the outer guide tube. The device also includes a catheter nested within the inner guide tube and movable axially within the inner guide tube. The deflector of the inner guide tube is positionable such that it deflects the dispensing end of the catheter outward through the opening in the outer guide tube when the catheter is advanced axially within the inner guide tube. A therapeutic delivery cannula may be nested within the catheter, such that the deflected end of the catheter determines the direction of travel of the therapeutic delivery cannula into patient tissue when the cannula emerges from the catheter.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Inventors: Daniel A. LIM, Matthew SILVESTRINI, Tejal DESAI
  • Patent number: 10111847
    Abstract: Methods of modulating healing response to vascular injury and/or vascular scarring in a subject are provided. As such, aspects of the disclosure relate to the use of pro-resolving lipid mediators to modulate inflammation and/or restenosis of a vascular wall. Another aspect of the disclosure relates to the use of pro-resolving lipid mediators to modulate a biological activity of vascular smooth muscle cells (VSMC) or vascular endothelial cells (VEC). Pro-resolving lipid mediators that fmd use in the subject methods include derivatives of omega-3 polyunsaturated fatty acids and omega-6 polyunsaturated fatty acids, such as resolvins, protectins, lipoxins and maresins and their therapeutically stable analogs. Also provided are vascular devices and compositions for use in the subject methods. Such methods, devices and compositions fmd use in a variety of applications, including applications related to treatment of vascular injuries and vascular scarring (e.g.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: October 30, 2018
    Assignees: The Regents of the University of California, The Brigham and Women's Hospital, Inc.
    Inventors: Michael S. Conte, Charles N. Serhan, Tejal A. Desai
  • Patent number: 10099034
    Abstract: An insertion device for delivering media inside a patient includes an outer guide tube having a side port. An inner guide tube is nested within the outer guide tube and movable axially within the outer guide tube. The inner guide tube includes a deflector at an end within the outer guide tube. The device also includes a catheter nested within the inner guide tube and movable axially within the inner guide tube. The deflector of the inner guide tube is positionable such that it deflects the dispensing end of the catheter outward through the opening in the outer guide tube when the catheter is advanced axially within the inner guide tube. A therapeutic delivery cannula may be nested within the catheter, such that the deflected end of the catheter determines the direction of travel of the therapeutic delivery cannula into patient tissue when the cannula emerges from the catheter.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: October 16, 2018
    Assignee: The Regents of the University of California
    Inventors: Daniel A. Lim, Matthew Silvestrini, Tejal Desai
  • Publication number: 20180185549
    Abstract: Compositions including a surface or film comprising nanofibers, nanotubes or microwells comprising a bioactive agent for elution to the surrounding tissue upon placement of the composition in a subject are disclosed. The compositions are useful in medical implants and methods of treating a patient in need of an implant, including orthopedic implants, dental implants, cardiovascular implants, neurological implants, neurovascular implants, gastrointestinal implants, muscular implants, and ocular implants.
    Type: Application
    Filed: October 2, 2017
    Publication date: July 5, 2018
    Inventors: Tejal A. Desai, Ketul C. Popat, Craig A. Grimes
  • Patent number: 9903035
    Abstract: The present disclosure provides devices, systems and methods with applicability in the coating of surfaces, in particular three-dimensional surfaces, via anodization reactions. For example, the disclosed devices, systems and methods find use in the formation of microstructured or nanostructured layers, e.g., metal oxide microstructured or nanostructured layers, via anodization on a variety of devices including, e.g., medical devices. Devices modified with one or more microstructured or nanostructured layers are also provided.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: February 27, 2018
    Assignee: The Regents of the University of California
    Inventors: Tejal A. Desai, Harald Nuhn
  • Patent number: 9878137
    Abstract: A method of preparing a substantially planar microdevice comprising a plurality of reservoirs is provided. In general, the method comprises forming a plurality of microdevices comprising a plurality of reservoirs from a planar layer of a biocompatible polymer. The method also comprises depositing one or more bioactive agents into the reservoirs. The microdevice is configured to attach to a target tissue and release the bioactive agent in close proximity to the tissue.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: January 30, 2018
    Assignee: The Regents of the University of California
    Inventors: Tejal A Desai, Hariharasudhan D. Chirra
  • Publication number: 20170360717
    Abstract: A microdevice containing a plurality of nanowires on a biocompatible surface, and methods of making and using the same are provided. Aspects of the present disclosure include forming a plurality of microdevices on a substrate where each microdevice includes a plurality of nanowires. The nanowires may be loaded with an active agent by disposing the active agent onto the surface of the nanowires. Also provided herein are kits that include the subject microdevices.
    Type: Application
    Filed: December 11, 2015
    Publication date: December 21, 2017
    Inventors: Tejal A. Desai, Hariharasudhan Chirra Dinakar, Cade B. Fox
  • Publication number: 20170319529
    Abstract: Methods of modulating healing response to vascular injury and/or vascular scarring in a subject are provided. As such, aspects of the disclosure relate to the use of pro-resolving lipid mediators to modulate inflammation and/or restenosis of a vascular wall. Another aspect of the disclosure relates to the use of pro-resolving lipid mediators to modulate a biological activity of vascular smooth muscle cells (VSMC) or vascular endothelial cells (VEC). Pro-resolving lipid mediators that find use in the subject methods include derivatives of omega-3 polyunsaturated fatty acids and omega-6 polyunsaturated fatty acids, such as resolvins, protectins, lipoxins and maresins and their therapeutically stable analogs. Also provided are vascular devices and compositions for use in the subject methods. Such methods, devices and compositions find use in a variety of applications, including applications related to treatment of vascular injuries and vascular scarring (e.g.
    Type: Application
    Filed: June 19, 2017
    Publication date: November 9, 2017
    Inventor: Tejal A. Desai
  • Patent number: 9775932
    Abstract: Compositions including a surface or film comprising nanofibers, nanotubes or microwells comprising a bioactive agent for elution to the surrounding tissue upon placement of the composition in a subject are disclosed The compositions are useful in medical implants and methods of treating a patient in need of an implant, including orthopedic implants, dental implants, cardiovascular implants, neurological implants, neurovascular implants, gastrointestinal implants, muscular implants, and ocular implants.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: October 3, 2017
    Assignees: The Regents of the University of California, The Penn State Research Foundation
    Inventors: Tejal A. Desai, Ketal C. Popat, Craig A. Grimes
  • Publication number: 20170216238
    Abstract: Methods of modulating healing response to vascular injury and/or vascular scarring in a subject are provided. As such, aspects of the disclosure relate to the use of pro-resolving lipid mediators to modulate inflammation and/or restenosis of a vascular wall. Another aspect of the disclosure relates to the use of pro-resolving lipid mediators to modulate a biological activity of vascular smooth muscle cells (VSMC) or vascular endothelial cells (VEC). Pro-resolving lipid mediators that fmd use in the subject methods include derivatives of omega-3 polyunsaturated fatty acids and omega-6 polyunsaturated fatty acids, such as resolvins, protectins, lipoxins and maresins and their therapeutically stable analogs. Also provided are vascular devices and compositions for use in the subject methods. Such methods, devices and compositions fmd use in a variety of applications, including applications related to treatment of vascular injuries and vascular scarring (e.g.
    Type: Application
    Filed: September 2, 2016
    Publication date: August 3, 2017
    Inventors: Michael S. Conte, Charles N. Serhan, Tejal A. Desai
  • Patent number: 9463177
    Abstract: Methods of modulating healing response to vascular injury and/or vascular scarring in a subject are provided. As such, aspects of the disclosure relate to the use of pro-resolving lipid mediators to modulate inflammation and/or restenosis of a vascular wall. Another aspect of the disclosure relates to the use of pro-resolving lipid mediators to modulate a biological activity of vascular smooth muscle cells (VSMC) or vascular endothelial cells (VEC). Pro-resolving lipid mediators that find use in the subject methods include derivatives of omega-3 polyunsaturated fatty acids and omega-6 polyunsaturated fatty acids, such as resolvins, protectins, lipoxins and maresins and their therapeutically stable analogs. Also provided are vascular devices and compositions for use in the subject methods. Such methods, devices and compositions find use in a variety of applications, including applications related to treatment of vascular injuries and vascular scarring (e.g.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: October 11, 2016
    Assignees: The Regents of the University of California, The Brigham and Women's Hospital, Inc.
    Inventors: Michael S. Conte, Charles N. Serhan, Tejal A. Desai
  • Publication number: 20150322583
    Abstract: The present disclosure provides devices, systems and methods with applicability in the coating of surfaces, in particular three-dimensional surfaces, via anodization reactions. For example, the disclosed devices, systems and methods find use in the formation of microstructured or nanostructured layers, e.g., metal oxide microstructured or nanostructured layers, via anodization on a variety of devices including, e.g., medical devices. Devices modified with one or more microstructured or nanostructured layers are also provided.
    Type: Application
    Filed: December 2, 2013
    Publication date: November 12, 2015
    Inventors: Tejal A. Desai, Harald Nuhn
  • Publication number: 20150216829
    Abstract: Methods of modulating healing response to vascular injury and/or vascular scarring in a subject are provided. As such, aspects of the disclosure relate to the use of pro-resolving lipid mediators to modulate inflammation and/or restenosis of a vascular wall. Another aspect of the disclosure relates to the use of pro-resolving lipid mediators to modulate a biological activity of vascular smooth muscle cells (VSMC) or vascular endothelial cells (VEC). Pro-resolving lipid mediators that find use in the subject methods include derivatives of omega-3 polyunsaturated fatty acids and omega-6 polyunsaturated fatty acids, such as resolvins, protectins, lipoxins and maresins and their therapeutically stable analogs. Also provided are vascular devices and compositions for use in the subject methods. Such methods, devices and compositions find use in a variety of applications, including applications related to treatment of vascular injuries and vascular scarring (e.g.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 6, 2015
    Applicant: The Regents of the University of California
    Inventors: Michael S. Conte, Charles N. Serhan, Tejal A. Desai
  • Publication number: 20150202406
    Abstract: An insertion device for delivering media inside a patient includes an outer guide tube having a side port. An inner guide tube is nested within the outer guide tube and movable axially within the outer guide tube. The inner guide tube includes a deflector at an end within the outer guide tube. The device also includes a catheter nested within the inner guide tube and movable axially within the inner guide tube. The deflector of the inner guide tube is positionable such that it deflects the dispensing end of the catheter outward through the opening in the outer guide tube when the catheter is advanced axially within the inner guide tube. A therapeutic delivery cannula may be nested within the catheter, such that the deflected end of the catheter determines the direction of travel of the therapeutic delivery cannula into patient tissue when the cannula emerges from the catheter.
    Type: Application
    Filed: July 26, 2013
    Publication date: July 23, 2015
    Inventors: Daniel A. Lim, Matthew Silvestrini, Tejal Desai
  • Publication number: 20150119807
    Abstract: A method of preparing a substantially planar microdevice comprising a plurality of reservoirs is provided. In general, the method comprises forming a plurality of microdevices comprising a plurality of reservoirs from a planar layer of a biocompatible polymer. The method also comprises depositing one or more bioactive agents into the reservoirs. The microdevice is configured to attach to a target tissue and release the bioactive agent in close proximity to the tissue.
    Type: Application
    Filed: May 24, 2013
    Publication date: April 30, 2015
    Applicant: The Regents of the University of California
    Inventors: Tejal A. Desai, Hariharasudhan D. Chirra
  • Publication number: 20140276021
    Abstract: The present invention provides particulate contrast media for use in CT imaging. The contrast media are based on particles of low-Z elements. In an exemplary embodiment, the invention provides an enteric contrast medium formulation. An exemplary formulation comprises, (a) an enteric contrast medium comprising essentially water-insoluble particles of a material selected from microparticles and nanoparticles. Exemplary particles comprise a material comprising a plurality of atoms of an element with an atomic number from 6 to 52. In various embodiments, the particles are coated with a material compatible with enteric administration of the formulation to a subject in need of such administration. In an exemplary embodiment, the contrast medium is incorporated into a pharmaceutically acceptable vehicle in which the particles are suspended.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Inventors: Benjamin M. YEH, Yanjun FU, Tejal DESAI
  • Publication number: 20140170204
    Abstract: Multilayer thin film devices that include a bioactive agent for elution to the surrounding tissue upon administration to a subject are provided. The multilayer thin film devices are useful as medical devices, such as ocular devices. Also provided are methods and kits for localized delivery of a bioactive agent to a tissue of a subject, and methods of preparing the subject devices. The multilayer thin film medical device includes a first layer, a bioactive agent and a second layer. The first and the second layers may be porous or non-porous. The devices have a furled structure, suitable for administration to a subject.
    Type: Application
    Filed: April 12, 2012
    Publication date: June 19, 2014
    Applicant: The Regents of the University of California
    Inventors: Tejal A. Desai, Mark Rory Steedman, Robert Bhisitkul, Daniel A. Bernards, Kevin D. Lance
  • Patent number: 8591933
    Abstract: The present invention relates to the use of three-dimensional microrod scaffolds for the temporal release of growth factors useful in tissue regeneration, engineering and treatment of disorders.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: November 26, 2013
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Brenda Russell, Tejal A. Desai, Paul Goldspink