Patents by Inventor Rajiv Saigal

Rajiv Saigal 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: 11607383
    Abstract: The present disclosure describes a method of delivering a therapeutic agent providing a microneedle array including a plurality of microneedles, the plurality of microneedles including a conductive coating disposed thereon, wherein the conductive coating includes the therapeutic agent and a conducting polymer; implanting the microneedle array in a dura mater of a subject in need thereof, wherein the microneedle array pierces the dura mater; and applying an electrical stimulus to the microneedle array to provide a controlled release of the therapeutic agent from the conductive coating, across the dura mater, to the central nervous system of the subject.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: March 21, 2023
    Assignee: University of Washington
    Inventors: Rajiv Saigal, Joyce Huang
  • Publication number: 20220401355
    Abstract: Devices for and related methods of treating a subject having a neurological injury to prevent or mitigate secondary injury are described. In an example, the devices include a base and a plurality of microneedles protruding from the base, the microneedles including a biocompatible and biodegradable matrix, and a neurologically active ingredient disposed within the matrix. In an example, a portion of the plurality of microneedles is shaped to penetrate the dura when the device is placed in contact with the dura.
    Type: Application
    Filed: May 13, 2022
    Publication date: December 22, 2022
    Applicants: University of Washington, The Regents of the University of California
    Inventors: Rajiv Saigal, Jessica Johnson, Tianyu Zhao, Maximilian Walter
  • Publication number: 20210106520
    Abstract: The present disclosure describes a method of delivering a therapeutic agent providing a microneedle array including a plurality of microneedles, the plurality of microneedles including a conductive coating disposed thereon, wherein the conductive coating includes the therapeutic agent and a conducting polymer; implanting the microneedle array in a dura mater of a subject in need thereof, wherein the microneedle array pierces the dura mater; and applying an electrical stimulus to the microneedle array to provide a controlled release of the therapeutic agent from the conductive coating, across the dura mater, to the central nervous system of the subject.
    Type: Application
    Filed: October 13, 2020
    Publication date: April 15, 2021
    Applicant: University of Washington
    Inventors: Rajiv Saigal, Joyce Huang
  • Publication number: 20210101002
    Abstract: Systems and methods for fusing vertebrae and systems and methods for repairing a bone defect employ a fixation assembly and current delivered to the fixation assembly to electrically stimulate osteogenesis in tissue surrounding the fixation assembly. An implantable system for fusing vertebrae includes a fixation assembly and an implantable stimulation unit. The fixation assembly includes an elongated rod configured to accommodate bone ingrowth. The fixation assembly is configured to structurally couple at least two of the two or more vertebrae via the elongated rod. The implantable stimulation unit is configured to supply electrical current to the elongated rod to promote bone ingrowth into the elongated rod.
    Type: Application
    Filed: October 1, 2020
    Publication date: April 8, 2021
    Inventors: Rajiv Saigal, Samantha Kokoska, Alexis Fleming, Taylor Monroe-Jones, Kai-Bin Ooi, Alejandro Diaz
  • Publication number: 20190038808
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Application
    Filed: October 5, 2018
    Publication date: February 7, 2019
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Publication number: 20180169302
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Application
    Filed: February 14, 2018
    Publication date: June 21, 2018
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Publication number: 20160339150
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Application
    Filed: August 5, 2016
    Publication date: November 24, 2016
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Patent number: 9440008
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: September 13, 2016
    Assignees: Children's Medical Center Corporation, Massachusetts Institute of Technology
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Patent number: 9173732
    Abstract: Provided herein are new methods for the treatment of hyperproliferative diseases affecting the spinal cord, including the use of biodegradable polymers to treat spinal cord tumor recessing, i.e., to patch open zones left by spinal tumor removal. Biocompatible polymeric materials are tailored to fill areas previously occupied by tumors, e.g., materials in the form of tubular articles configured for insertion into the spinal column after surgical removal of a tumor. These protective articles may also include medicinal agents that stimulate spinal column neural regeneration, such as medicines or donor neuronal cells such as human neural stem cells, thus assisting patients to recover motorsensory function after spinal tumor surgery.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: November 3, 2015
    Assignees: The Children's Medical Center Corporation, Massachusetts Institute of Technology
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng, Eric Woodard
  • Publication number: 20150297799
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Application
    Filed: April 23, 2015
    Publication date: October 22, 2015
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Patent number: 9101695
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: August 11, 2015
    Assignees: Children's Medical Center Corporation, Massachusetts Institute of Technology
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Publication number: 20150030659
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Application
    Filed: September 25, 2014
    Publication date: January 29, 2015
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Patent number: 8858966
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: October 14, 2014
    Assignees: Children's Medical Center Corporation, Massachusetts Institute of Technology
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Publication number: 20140161861
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Application
    Filed: February 11, 2014
    Publication date: June 12, 2014
    Applicants: Massachusetts Institute of Technology, Children's Medical Center Corporation
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Patent number: 8685434
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: April 1, 2014
    Assignees: Children's Medical Center Corporation, Massachusetts Institute of Technology
    Inventors: Robert S. Langer, Rajiv Saigal, Yang Teng
  • Patent number: 8377463
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: February 19, 2013
    Assignees: Children's Medical Center Corporation, Massachusetts Institute of Technology
    Inventors: Robert Langer, Rajiv Saigal, Yang Teng
  • Publication number: 20090053284
    Abstract: Provided herein are new methods for the treatment of hyperproliferative diseases affecting the spinal cord, including the use of biodegradable polymers to treat spinal cord tumor recessing, i.e., to patch open zones left by spinal tumor removal. Biocompatible polymeric materials are tailored to fill areas previously occupied by tumors, e.g., materials in the form of tubular articles configured for insertion into the spinal column after surgical removal of a tumor. These protective articles may also include medicinal agents that stimulate spinal column neural regeneration, such as medicines or donor neuronal cells such as human neural stem cells, thus assisting patients to recover motorsensory function after spinal tumor surgery.
    Type: Application
    Filed: August 5, 2008
    Publication date: February 26, 2009
    Applicants: CHILDREN'S MEDICAL CENTER CORPORATION, MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Robert S. LANGER, Rajiv SAIGAL, Yang TENG, Eric WOODARD
  • Publication number: 20070259020
    Abstract: Devices and methods for the treatment of open and closed wound spinal cord injuries are disclosed. For example, described herein are devices and methods for mitigating secondary injury to, and promoting recovery of, spinal cord primary injuries. More particularly, certain embodiments of the present invention are directed to polymeric mini-tubes that may be used for the treatment of spinal cord injuries. In addition, other embodiments are directed to polymeric “fill-in” bandages that may be used for the treatment of spinal cord injuries. For example, an erodible, or biodegradable, form of biocompatible polymer of the present invention is fabricated for surgical implantation into the site of the spinal cord injury.
    Type: Application
    Filed: April 25, 2007
    Publication date: November 8, 2007
    Inventors: Robert Langer, Rajiv Saigal, Yang Teng