Patents by Inventor Sridevi N. Dhanaraj

Sridevi N. Dhanaraj 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: 11957326
    Abstract: The present invention is directed to a variable length applicator system for delivery of at least one medically useful liquid, comprising an elongated, telescopically extendable, variable length cannula having a liquid pump containing said liquid connected to said cannula at a proximal end, and a spray nozzle mounted on said cannula at a distal end; a coiled and extendable tubular conduit connected to and in fluid communication with, both said liquid pump and said spray nozzle; wherein an axial extension of said cannula is configured to cause a matching axial extension of said coiled tubular conduit.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: April 16, 2024
    Assignee: Ethicon, Inc.
    Inventors: Jianxin Guo, Sridevi N. Dhanaraj, Leo Kriksunov
  • Publication number: 20240115758
    Abstract: Provided herein are hydrogel-hydrocolloid sealant compositions for use as soft-tissue sealants. The compositions can include a cross-linkable electrophilic component; a cross-linkable nucleophilic component; a swellable filler material including gelatin; and, a buffer having a pH in the range of about 9.0 to about 10.0. The compositions can have a first fluid state and a second crosslinked state, and in the crosslinked state, the electrophilic and nucleophilic components can crosslink to form a crosslinked hydrogel network where the swellable filler material including gelatin is disposed within the crosslinked network. Also provided are systems and methods of manufacturing the sealant compositions as well as methods of repairing soft tissue defects including applying the sealant compositions disclosed herein.
    Type: Application
    Filed: October 3, 2022
    Publication date: April 11, 2024
    Inventors: Salim Ghodbane, Sridevi N. Dhanaraj, Ashley DeAnglis, Gary Zhang
  • Publication number: 20230329686
    Abstract: The present invention is directed to a variable length applicator system for delivery of at least one medically useful liquid, comprising an elongated, telescopically extendable, variable length cannula having a liquid pump containing said liquid connected to said cannula at a proximal end, and a spray nozzle mounted on said cannula at a distal end; a coiled and extendable tubular conduit connected to and in fluid communication with, both said liquid pump and said spray nozzle; wherein an axial extension of said cannula is configured to cause a matching axial extension of said coiled tubular conduit.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 19, 2023
    Applicant: Ethicon, Inc.
    Inventors: Jianxin Guo, Sridevi N. Dhanaraj, Leo Kriksunov
  • Publication number: 20230309977
    Abstract: A sealant delivery system includes a syringe assembly having side-by-side syringes and a vial assembly having side-by-side vials. A first vial is aligned with a distal end of a first syringe and has a vial opening at the proximal end thereof that is closed by a first sealing membrane. A second vial is aligned with a distal end of a second syringe and has a second vial opening at the proximal end thereof that is closed by a second sealing membrane. The vial assembly includes a first piercing element moveable between a retracted position and an extended position for piercing the first sealing membrane to provide fluid communication between the first fluid chamber and the first vial, and a second piercing element moveable between a retracted position and an extended position for piercing the second sealing membrane to provide fluid communication between the second fluid chamber and the second vial.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Jianxin Guo, Sridevi N. Dhanaraj, Salim Ghodbane
  • Publication number: 20230085152
    Abstract: The present invention provides a kit for preparing a composition for sealing a lung tract, comprising: (a) a first component comprising: (i) a fibrinogen solution, and (ii) prewet gelatin particles in an aqueous solution; and (b) a second component comprising: (i) a thrombin solution, and (ii) a dry gelatin powder; wherein the first and second components are stored separately and configured for mixing together to form a composition that is flowable and cross-linkable. The composition may be used to seal tissue tracts such as lung tissue tracts.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 16, 2023
    Inventors: Salim Ghodbane, Ashley DeAnglis, Sridevi N. Dhanaraj, Guanghui Zhang
  • Patent number: 10980913
    Abstract: The present invention is directed to tissue sealant compositions comprising: a multi-arm reactive polyethylene glycol polymer having at least 3 electrophilic groups; albumin; a buffer; water; and entrained gas as bubbles; wherein concentration of albumin in a liquid component of the sealant is within range of 50-200 mg/ml; and wherein concentration of multi-arm PEG in said liquid component of the sealant is within range of 25-100 mg/mL.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: April 20, 2021
    Assignee: Ethicon LLC
    Inventors: Sridevi N. Dhanaraj, Nir I. Nativ, Ashley DeAnglis
  • Publication number: 20190269818
    Abstract: The present invention is directed to tissue sealant compositions comprising: a multi-arm reactive polyethylene glycol polymer having at least 3 electrophilic groups; albumin; a buffer; water; and entrained gas as bubbles; wherein concentration of albumin in a liquid component of the sealant is within range of 50-200 mg/ml; and wherein concentration of multi-arm PEG in said liquid component of the sealant is within range of 25-100 mg/mL.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 5, 2019
    Inventors: Sridevi N. Dhanaraj, Nir I. Nativ, Ashley DeAnglis
  • Publication number: 20190269819
    Abstract: The present invention is directed to tissue sealant compositions comprising: a multi-arm reactive polyethylene glycol polymer having at least 3 electrophilic groups; albumin; a buffer; water; and entrained gas as bubbles; wherein concentration of albumin in a liquid component of the sealant is within range of 50-200 mg/ml; and wherein concentration of multi-arm PEG in said liquid component of the sealant is within range of 25-100 mg/mL and wherein PEG-SG portion is composed of a blend of 2 PEG-SG different in arm number or arm lengths.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 5, 2019
    Inventors: Sridevi N. Dhanaraj, Nir I. Nativ, Ashley DeAnglis
  • Patent number: 7179890
    Abstract: There is provided a novel vascular endothelial growth factor, herein designated VEGF-X, in addition to the nucleic acid molecule encoding it, a host cell transformed with said vector and compounds which inhibit or enhance angiogenesis. Also provided is the sequence of a CUB domain present in the sequence of VEGF-X which domain itself prevents angiogenesis and which is used to treat diseases associated with inappropriate vascularisation or angiogenesis.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: February 20, 2007
    Assignee: Janssen Pharmaceutica.N.V.
    Inventors: Robert D. Gordon, Jörg J. Sprengel, Jeffrey R. Yon, Josiena J. H. Dijkmans, Anna Gosiewska, Sridevi N. Dhanaraj, Jean Xu
  • Patent number: 6783953
    Abstract: There is provided a novel vascular endothelial growth factor, herein designated VEGF-X, in addition to the nucleic acid molecule encoding it, a host cell transformed with said vector and compounds which inhibit or enhance angiogenesis. Also provided is the sequence of a CUB domain present in the sequence of VEGF-X which domain itself prevents angiogenesis and which is used to treat diseases associated with inappropriate vascularisation or angiogenesis.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: August 31, 2004
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Robert D. Gordon, Jörg J. Sprengel, Jeffrey R. Yon, Josiena J. H. Dijkmans, Anna Gosiewska, Sridevi N. Dhanaraj, Jean Xu