Patents by Inventor Karen F. Shakespear

Karen F. Shakespear 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).

  • ELECTROCHEMICAL DISINFECTION OF IMPLANTED CATHETERS
    Publication number: 20160193388
    Abstract: An implantable catheter is provided that may be disinfected without removal from the body of a patient, using an electrochemical method to generate an electric field on the catheter surface and thus destroy microorganisms in a biofilm that is present or forming. A catheter system includes the implantable catheter and a voltage source that is operably connected to electrodes on or embedded in the exterior and optionally the interior catheter surface. Methods are also provided for disinfecting the implantable catheter in vivo and for detecting or confirming the presence of a pathogenic biofilm thereon.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Applicants: SRI INTERNATIONAL, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jose P. Joseph, Pablo E. Garcia, Karen F. Shakespear, Sarah Young, Janus A.J. Haagensen, Sanjeev Dutta
  • Electrochemical disinfection of implanted catheters
    Patent number: 9381276
    Abstract: An implantable catheter is provided that may be disinfected without removal from the body of a patient, using an electrochemical method to generate an electric field on the catheter surface and thus destroy microorganisms in a biofilm that is present or forming. A catheter system includes the implantable catheter and a voltage source that is operably connected to electrodes on or embedded in the exterior and optionally the interior catheter surface. Methods are also provided for disinfecting the implantable catheter in vivo and for detecting or confirming the presence of a pathogenic biofilm thereon.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: July 5, 2016
    Assignees: SRI INTERNATIONAL, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jose P. Joseph, Pablo E. Garcia, Karen F. Shakespear, Sarah Young, Janus A. J. Haagensen, Sanjeev Dutta
  • Electrochemical disinfection of implanted catheters
    Patent number: 9320832
    Abstract: An implantable catheter is provided that may be disinfected without removal from the body of a patient, using an electrochemical method to generate an electric field on the catheter surface and thus destroy microorganisms in a biofilm that is present or forming. A catheter system includes the implantable catheter and a voltage source that is operably connected to electrodes on or embedded in the exterior and optionally the interior catheter surface. Methods are also provided for disinfecting the implantable catheter in vivo and for detecting or confirming the presence of a pathogenic biofilm thereon.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: April 26, 2016
    Assignees: SRI INTERNATIONAL, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jose P. Joseph, Pablo E. Garcia, Karen F. Shakespear, Sarah Young, Janus A. J. Haagensen, Sanjeev Dutta
  • Photocatalytic disinfection of implanted catheters
    Patent number: 9259513
    Abstract: An implantable catheter is provided that may be disinfected without removal from the body of a patient, using a photocatalytic method to activate a reaction on the catheter surface that generates oxidizing agents in the form of Reactive Oxygen Species (“ROS”) and thus destroy microorganisms in a biofilm that is present or forming. A catheter system includes the implantable catheter, a light source, and a source of power operably connected to the light source. Methods are also provided for disinfecting the implantable catheter in vivo.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: February 16, 2016
    Assignee: SRI INTERNATIONAL
    Inventors: William Bedwell, Lorenza Moro, Eric A. Arons, Pablo E. Garcia, Osita Onugha, Sanjeev Dutta, Sarah Young, Karen F. Shakespear, Janus A. J. Haagensen
  • PHOTOCATALYTIC DISINFECTION OF IMPLANTED CATHETERS
    Publication number: 20130060188
    Abstract: An implantable catheter is provided that may be disinfected without removal from the body of a patient, using a photocatalytic method to activate a reaction on the catheter surface that generates oxidizing agents in the form of Reactive Oxygen Species (“ROS”) and thus destroy microorganisms in a biofilm that is present or forming. A catheter system includes the implantable catheter, a light source, and a source of power operably connected to the light source. Methods are also provided for disinfecting the implantable catheter in vivo.
    Type: Application
    Filed: June 20, 2012
    Publication date: March 7, 2013
    Applicants: The Board of Trustees of the Leland Stanford Junior University, SRI International
    Inventors: William Bedwell, Lorenza Moro, Eric A. Arons, Pablo E. Garcia, Osita Onugha, Sanjeev Dutta, Sarah Young, Karen F. Shakespear, Janus A.J. Haagensen
  • ELECTROCHEMICAL DISINFECTION OF IMPLANTED CATHETERS
    Publication number: 20130041238
    Abstract: An implantable catheter is provided that may be disinfected without removal from the body of a patient, using an electrochemical method to generate an electric field on the catheter surface and thus destroy microorganisms in a biofilm that is present or forming. A catheter system includes the implantable catheter and a voltage source that is operably connected to electrodes on or embedded in the exterior and optionally the interior catheter surface. Methods are also provided for disinfecting the implantable catheter in vivo and for detecting or confirming the presence of a pathogenic biofilm thereon.
    Type: Application
    Filed: June 20, 2012
    Publication date: February 14, 2013
    Inventors: Jose P. Joseph, Pablo E. Garcia, Karen F. Shakespear, Sarah Young, Janus A.J. Haagensen, Sanjeev Dutta