Patents by Inventor Giridhar Thiagarajan

Giridhar Thiagarajan 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: 20230372592
    Abstract: An antimicrobial catheter assembly can include a non-eluting antimicrobial coating on an internal surface, an external surface, or both the internal surface and the external surface of the catheter assembly. The antimicrobial coating can be a composite of three or more layers including a copper-based layer between an outer corrosion-preventing layer of a corrosion-resistant metal and an inner adhesion promoting layer.
    Type: Application
    Filed: August 3, 2023
    Publication date: November 23, 2023
    Inventors: Gidon Ofek, Giridhar Thiagarajan
  • Patent number: 11759551
    Abstract: Invasive medical devices including a substantially non-eluting antimicrobial treatment are disclosed. One or more external and/or internal surfaces of the medical device include a substantially non-eluting copper-coated surface that assists in preventing microbial colonization of the coated surface. This in turn reduces the incidence of infection to the patient originating from the medical device. In one embodiment, a catheter assembly is disclosed and comprises an elongate catheter tube that defines at least one lumen, at least one extension leg including a luer connector, and a bifurcation hub including at least one fluid passageway that provides fluid communication between the extension leg and the lumen. A substantially non-eluting copper coating is disposed on a surface of at least one of the lumen, the extension leg, the luer connector, and the fluid passageway. The coating is applied via an electroless deposition process. A water-shed coating is disposed on the copper coating.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: September 19, 2023
    Assignee: C. R. Bard, Inc.
    Inventors: Giridhar Thiagarajan, Murtaza Y. Amin, Jerrid Matson
  • Patent number: 11730863
    Abstract: An antimicrobial catheter assembly can include a hub, a catheter tube connected to the hub, at least one extension leg connected to the hub, and a non-eluting antimicrobial coating on an internal or external surface of the catheter assembly. The hub includes at least one hub lumen defining a corresponding hub portion of a fluid pathway through the catheter assembly. The catheter tube includes at least one catheter-tube lumen defining a corresponding catheter-tube portion of the fluid pathway through the catheter assembly. The extension leg can include an extension-leg lumen defining a corresponding extension-leg portion of the fluid pathway through the catheter assembly. The antimicrobial coating can include a copper-based layer between a corrosion-preventing layer and the internal or external surface of the catheter assembly, an adhesion-promoting layer between the copper-based layer and the internal or external surface of the catheter assembly, or a combination thereof.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: August 22, 2023
    Assignee: C. R. Bard, Inc.
    Inventors: Gidon Ofek, Giridhar Thiagarajan
  • Publication number: 20220347355
    Abstract: Invasive medical devices including a substantially non-eluting antimicrobial treatment are disclosed. One or more external and/or internal surfaces of the medical device include a substantially non-eluting copper-coated surface that assists in preventing microbial colonization of the coated surface. This in turn reduces the incidence of infection to the patient originating from the medical device. In one embodiment, a catheter assembly is disclosed and comprises an elongate catheter tube that defines at least one lumen, at least one extension leg including a luer connector, and a bifurcation hub including at least one fluid passageway that provides fluid communication between the extension leg and the lumen. A substantially non-eluting copper coating is disposed on a surface of at least one of the lumen, the extension leg, the luer connector, and the fluid passageway. The coating is applied via an electroless deposition process. A water-shed coating is disposed on the copper coating.
    Type: Application
    Filed: June 17, 2022
    Publication date: November 3, 2022
    Applicants: C. R. Bard, Inc., C. R. Bard, Inc.
    Inventors: Giridhar Thiagarajan, Murtaza Y. Amin, Jerrid Matson
  • Publication number: 20220338480
    Abstract: An antimicrobial device can include a common touch surface of a non-metallic material, and an antimicrobial metal layer applied to the common touch surface at an average thickness ranging from a single metal atom in thickness to 1 mm.
    Type: Application
    Filed: August 7, 2020
    Publication date: October 27, 2022
    Applicant: JNT TECHNOLOGIES, LLC
    Inventors: Giridhar THIAGARAJAN, Sivaprasad SUKAVANESHVAR
  • Patent number: 11413376
    Abstract: Invasive medical devices including a substantially non-eluting antimicrobial treatment are disclosed. One or more external and/or internal surfaces of the medical device include a substantially non-eluting copper-coated surface that assists in preventing microbial colonization of the coated surface. This in turn reduces the incidence of infection to the patient originating from the medical device. In one embodiment, a catheter assembly is disclosed and comprises an elongate catheter tube that defines at least one lumen, at least one extension leg including a luer connector, and a bifurcation hub including at least one fluid passageway that provides fluid communication between the extension leg and the lumen. A substantially non-eluting copper coating is disposed on a surface of at least one of the lumen, the extension leg, the luer connector, and the fluid passageway. The coating is applied via an electroless deposition process. A water-shed coating is disposed on the copper coating.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: August 16, 2022
    Assignee: C. R. Bard, Inc.
    Inventors: Giridhar Thiagarajan, Jerrid Matson
  • Publication number: 20220016392
    Abstract: A tube-containing medical device assembly or tube-containing medical device kit can include a tube-containing medical device including an access opening positionable exterior with respect to a subject, a fluid communication opening positionable within the subject to fluidically communicate with a body fluid of the subject, and an elongated lumen therebetween. A luminal wire is inserted or insertable in the elongated lumen, wherein the luminal wire has a length that is within or will be positioned with 5% to 100% of the elongated lumen. The luminal wire can have an x-y cross-sectional diameter sufficiently smaller than an x-y cross-sectional diameter of the elongated lumen to allow removal and/or insertion of the luminal wire (initially or as a replacement). The luminal wire in the present disclosure is bioactive.
    Type: Application
    Filed: December 6, 2019
    Publication date: January 20, 2022
    Inventor: Giridhar Thiagarajan
  • Publication number: 20210322653
    Abstract: The present disclosure is drawn to antimicrobial implantable medical devices, and can include an implantable medical device, and an antimicrobial metal applied to an exterior surface of at least a portion of the implantable medical that is positionable within a body tissue or traverses the body tissue when surgically placed (using surgical instruments beyond merely a needle or catheter port) for implantation.
    Type: Application
    Filed: December 10, 2019
    Publication date: October 21, 2021
    Inventor: Giridhar Thiagarajan
  • Publication number: 20200000972
    Abstract: An antimicrobial catheter assembly can include a hub, a catheter tube connected to the hub, at least one extension leg connected to the hub, and a non-eluting antimicrobial coating on an internal or external surface of the catheter assembly. The hub includes at least one hub lumen defining a corresponding hub portion of a fluid pathway through the catheter assembly. The catheter tube includes at least one catheter-tube lumen defining a corresponding catheter-tube portion of the fluid pathway through the catheter assembly. The extension leg can include an extension-leg lumen defining a corresponding extension-leg portion of the fluid pathway through the catheter assembly. The antimicrobial coating can include a copper-based layer between a corrosion-preventing layer and the internal or external surface of the catheter assembly, an adhesion-promoting layer between the copper-based layer and the internal or external surface of the catheter assembly, or a combination thereof.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 2, 2020
    Inventors: Gidon Ofek, Giridhar Thiagarajan
  • Publication number: 20160287758
    Abstract: Invasive medical devices including a substantially non-eluting antimicrobial treatment are disclosed. One or more external and/or internal surfaces of the medical device include a substantially non-eluting copper-coated surface that assists in preventing microbial colonization of the coated surface. This in turn reduces the incidence of infection to the patient originating from the medical device. In one embodiment, a catheter assembly is disclosed and comprises an elongate catheter tube that defines at least one lumen, at least one extension leg including a luer connector, and a bifurcation hub including at least one fluid passageway that provides fluid communication between the extension leg and the lumen. A substantially non-eluting copper coating is disposed on a surface of at least one of the lumen, the extension leg, the luer connector, and the fluid passageway. The coating is applied via an electroless deposition process. A water-shed coating is disposed on the copper coating.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 6, 2016
    Inventors: Giridhar Thiagarajan, Murtaza Yusuf Amin, Jerrid Matson
  • Publication number: 20140272232
    Abstract: Provided are multi-layer antithrombic coatings comprising an outermost layer of an antithrombic agent, such as a heparin conjugate, bound to a penultimate polymeric layer comprising cationic polymer species that is bound alternating polymeric layers comprising anionic polymer species and cationic polymer species, and uses thereof.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventor: Giridhar Thiagarajan