Patents by Inventor Rachit Ohri

Rachit Ohri 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).

  • Thixotropic oxidized cellulose solutions and medical applications thereof
    Patent number: 11872244
    Abstract: A method of treatment includes agitating a thixotropic oxidized cellulose solution; administering the agitated thixotropic oxidized cellulose solution to a target tissue site; and allowing the agitated thixotropic oxidized cellulose solution to gel at the target tissue site.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: January 16, 2024
    Assignee: Covidien LP
    Inventors: Rachit Ohri, Phillip D. Blaskovich, Min-Shyan Sheu, Petra Brockfeld
  • Dissolution of oxidized cellulose
    Patent number: 11873350
    Abstract: A process for dissolving modified cellulose is disclosed. The process includes contacting modified cellulose with a solvent in a mixture to form swelled modified cellulose and then contacting the mixture with a salt to dissolve the swelled modified cellulose.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: January 16, 2024
    Assignee: Covidien LP
    Inventors: Valentino J. Tramontano, Joshua Kennedy, Philip D. Blaskovich, Rachit Ohri, Daniel S. Costa, Sajida Farooqi
  • DISSOLUTION OF OXIDIZED CELLULOSE
    Publication number: 20210238314
    Abstract: A process for dissolving modified cellulose is disclosed. The process includes contacting modified cellulose with a solvent in a mixture to form swelled modified cellulose and then contacting the mixture with a salt to dissolve the swelled modified cellulose.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Inventors: Valentino J. Tramontano, Joshua Kennedy, Philip D. Blaskovich, Rachit Ohri, Daniel S. Costa, Sajida Farooqi
  • Oxidized cellulose microspheres
    Patent number: 11065204
    Abstract: A process for forming microspheres is disclosed. The process includes contacting a solvent with a modified cellulose to form a solution; contacting the modified cellulose solution with at least one bioactive agent to form a discontinuous phase liquid; contacting the discontinuous phase liquid with a continuous phase liquid to form an emulsion; and contacting the emulsion with a third phase liquid to extract the solvent from the emulsion, thereby forming a plurality of modified cellulose microspheres.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: July 20, 2021
    Assignee: Covidien LP
    Inventors: Phillip Blaskovich, Rachit Ohri, Lan Pham
  • Dissolution of oxidized cellulose and particle preparation by cross-linking with multivalent cations
    Patent number: 11053323
    Abstract: A process for dissolving modified cellulose includes contacting modified cellulose solution with at least one multivalent cation to form a plurality of modified cellulose particles.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: July 6, 2021
    Assignee: Covidien LP
    Inventors: Phillip Blaskovich, Valentino Tramontano, Rachit Ohri, Joshua Kennedy, Christopher M. Henry
  • Dissolution of oxidized cellulose
    Patent number: 10982012
    Abstract: A process for dissolving modified cellulose is disclosed. The process includes contacting modified cellulose with a solvent in a mixture to form swelled modified cellulose and then contacting the mixture with a salt to dissolve the swelled modified cellulose.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: April 20, 2021
    Assignee: Covidien LP
    Inventors: Valentino J. Tramontano, Joshua Kennedy, Sajida Farooqi, Phillip D. Blaskovich, Rachit Ohri, Daniel S. Costa
  • Medical devices based on oxidized cellulose
    Patent number: 10584184
    Abstract: A process for dissolving modified cellulose includes contacting modified cellulose with a solvent in a mixture to form swelled modified cellulose and then contacting the mixture with a salt to dissolve the swelled modified cellulose. The dissolved modified cellulose is used to form at least one of a predictably degrading coating, film, or a fiber.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 10, 2020
    Assignee: Covidien LP
    Inventors: Valentino Tramontano, Phillip Blaskovich, Rachit Ohri, Joshua Kennedy, Sajida Farooqi
  • Multi-encapsulated formulations made with oxidized cellulose
    Patent number: 10561744
    Abstract: A microsphere and method for forming the same are disclosed. The microsphere includes modified cellulose and at least one of a visualization agent, a magnetic material, or a radioactive material.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: February 18, 2020
    Assignee: Covidien LP
    Inventors: Rachit Ohri, Phillip D. Blaskovich
  • DRUG LOADED MICROSPHERES FOR POST-OPERATIVE CHRONIC PAIN
    Publication number: 20200016081
    Abstract: A microsphere is disclosed. The microsphere includes at least one biodegradable polymer and at least one local anesthetic, wherein about 75% of the at least one local anesthetic is released by about 72 hours and from about 80% to about 90% of the at least one local anesthetic is released by about 120 hours, thereby relieving chronic pain for at least 28 days.
    Type: Application
    Filed: September 25, 2019
    Publication date: January 16, 2020
    Inventors: Rachit Ohri, Gary R. Strichartz, Phillip Blaskovich
  • OXIDIZED CELLULOSE MICROSPHERES
    Publication number: 20200000727
    Abstract: A process for forming microspheres is disclosed. The process includes contacting a solvent with a modified cellulose to form a solution; contacting the modified cellulose solution with at least one bioactive agent to form a discontinuous phase liquid; contacting the discontinuous phase liquid with a continuous phase liquid to form an emulsion; and contacting the emulsion with a third phase liquid to extract the solvent from the emulsion, thereby forming a plurality of modified cellulose microspheres.
    Type: Application
    Filed: August 14, 2019
    Publication date: January 2, 2020
    Inventors: Phillip Blaskovich, Rachit Ohri, Lan Pham
  • THIXOTROPIC OXIDIZED CELLULOSE SOLUTIONS AND MEDICAL APPLICATIONS THEREOF
    Publication number: 20190350965
    Abstract: A method of treatment includes agitating a thixotropic oxidized cellulose solution; administering the agitated thixotropic oxidized cellulose solution to a target tissue site; and allowing the agitated thixotropic oxidized cellulose solution to gel at the target tissue site.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventors: Rachit Ohri, Phillip D. Blaskovich, Min-Shyan Sheu, Petra Brockfeld
  • Drug loaded microspheres for post-operative chronic pain
    Patent number: 10449152
    Abstract: A microsphere is claimed which includes at least one biodegradable polymer and at least one local anesthetic, wherein about 75% of the at least one local anesthetic is released by about 72 hours and from about 80% to about 90% of the at least one local anesthetic is released by about 120 hours, thereby relieving chronic pain for at least 28 days.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: October 22, 2019
    Assignee: Covidien LP
    Inventors: Rachit Ohri, Gary R. Strichartz, Phillip Blaskovich
  • Oxidized cellulose microspheres
    Patent number: 10426730
    Abstract: A process for forming microspheres is disclosed. The process includes contacting a solvent with a modified cellulose to form a solution; contacting the modified cellulose solution with at least one bioactive agent to form a discontinuous phase liquid; contacting the discontinuous phase liquid with a continuous phase liquid to form an emulsion; and contacting the emulsion with a third phase liquid to extract the solvent from the emulsion, thereby forming a plurality of modified cellulose microspheres.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 1, 2019
    Assignee: Covidien LP
    Inventors: Phillip Blaskovich, Rachit Ohri, Lan Pham
  • Thixotropic oxidized cellulose solutions and medical applications thereof
    Patent number: 10413566
    Abstract: A method of treatment includes agitating a thixotropic oxidized cellulose solution; administering the agitated thixotropic oxidized cellulose solution to a target tissue site; and allowing the agitated thixotropic oxidized cellulose solution to gel at the target tissue site.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: September 17, 2019
    Assignee: Covidien LP
    Inventors: Rachit Ohri, Phillip D. Blaskovich
  • Resorbable oxidized cellulose embolization microspheres
    Patent number: 10328095
    Abstract: A method for forming an embolism within a blood vessel is disclosed. The method includes including: implanting a plurality of oxidized cellulose microspheres into a lumen of a blood vessel to at least partially block the lumen.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 25, 2019
    Assignee: Covidien LP
    Inventors: Phillip Blaskovich, Rachit Ohri, Olga Cherniavsky
  • OXIDIZED CELLULOSE MICROSPHERES
    Publication number: 20190117575
    Abstract: A process for forming microspheres is disclosed. The process includes contacting a solvent with a modified cellulose to form a solution; contacting the modified cellulose solution with at least one bioactive agent to form a discontinuous phase liquid; contacting the discontinuous phase liquid with a continuous phase liquid to form an emulsion; and contacting the emulsion with a third phase liquid to extract the solvent from the emulsion, thereby forming a plurality of modified cellulose microspheres.
    Type: Application
    Filed: December 19, 2018
    Publication date: April 25, 2019
    Inventors: Phillip Blaskovich, Rachit Ohri, Lan Pham
  • Oxidized cellulose microspheres
    Patent number: 10188608
    Abstract: A process for forming microspheres is disclosed. The process includes contacting a solvent with a modified cellulose to form a solution; contacting the modified cellulose solution with at least one bioactive agent to form a discontinuous phase liquid; contacting the discontinuous phase liquid with a continuous phase liquid to form an emulsion; and contacting the emulsion with a third phase liquid to extract the solvent from the emulsion, thereby forming a plurality of modified cellulose microspheres.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: January 29, 2019
    Assignee: Covidien LP
    Inventors: Phillip Blaskovich, Rachit Ohri, Lan Pham
  • Medical Devices Based On Oxidized Cellulose
    Publication number: 20180305468
    Abstract: A process for dissolving modified cellulose includes contacting modified cellulose with a solvent in a mixture to form swelled modified cellulose and then contacting the mixture with a salt to dissolve the swelled modified cellulose. The dissolved modified cellulose is used to form at least one of a predictably degrading coating, film, or a fiber.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Inventors: Valentino Tramontano, Phillip Blaskovich, Rachit Ohri, Joshua Kennedy, Sajida Farooqi
  • MULTI-ENCAPSULATED FORMULATIONS MADE WITH OXIDIZED CELLULOSE
    Publication number: 20180221511
    Abstract: A microsphere and method for forming the same are disclosed. The microsphere includes modified cellulose and at least one of a visualization agent, a magnetic material, or a radioactive material.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 9, 2018
    Inventors: Rachit Ohri, Phillip D. Blaskovich
  • Medical devices based on oxidized cellulose
    Patent number: 10040871
    Abstract: A process for dissolving modified cellulose includes contacting modified cellulose with a solvent in a mixture to form swelled modified cellulose and then contacting the mixture with a salt to dissolve the swelled modified cellulose. The dissolved modified cellulose is used to form at least one of a predictably degrading coating, film, or a fiber.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: August 7, 2018
    Assignee: Covidien LP
    Inventors: Valentino Tramontano, Phillip Blaskovich, Rachit Ohri, Joshua Kennedy, Sajida Farooqi