Patents by Inventor Stephen Clifford Waller

Stephen Clifford Waller 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: 11478236
    Abstract: The present disclosure relates to devices and methods for delivery of a ferrofluid to a targeted treatment site, such as delivery of a ferroadhesive to a pathological fistula to occlude the fistula. A device includes a catheter having a lumen and a distal opening. A hollow solenoid is coupled to a distal section of the catheter, and a hollow core of the solenoid allows passage of a ferrofluid through the catheter and through the hollow core so that it may exit past the distal end of the hollow solenoid. The solenoid may be selectively actuated to maintain or control the position of the delivered ferrofluid.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: October 25, 2022
    Assignee: University of Kansas
    Inventors: Stephen Clifford Waller, Alyssa Kirk Rollando, Richard Kevin Gilroy, Philip Lee Johnson, James Marion Stiles, Sara Ellen Wilson
  • Patent number: 11033437
    Abstract: A barrier system is provided for use in reducing infections associated with post-operative surgical incision and/or a percutaneous medical device, such as a catheter, that is disposed within the surgical incision. Such a barrier system may include: a barrier device having a skin-contacting surface and a catheter-receiving surface; and an adhesive composition configured for adhering to skin, the barrier device, and/or the catheter so as to form a barrier at or adjacent to an incision in the skin where the catheter is percutaneously inserted through the skin. A tensioning anchor and associated system of two or more tensioning anchors is provided for post-operative wound closure. A method for applying and removing the barrier device and tensioning anchors is also provided.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: June 15, 2021
    Assignee: University of Kansas
    Inventors: Stephen Clifford Waller, Dhaval Bhavsar
  • Publication number: 20210068797
    Abstract: The present disclosure relates to devices and methods for delivery of a ferrofluid to a targeted treatment site, such as delivery of a ferroadhesive to a pathological fistula to occlude the fistula. A device includes a catheter having a lumen and a distal opening. A hollow solenoid is coupled to a distal section of the catheter, and a hollow core of the solenoid allows passage of a ferrofluid through the catheter and through the hollow core so that it may exit past the distal end of the hollow solenoid. The solenoid may be selectively actuated to maintain or control the position of the delivered ferrofluid.
    Type: Application
    Filed: October 30, 2020
    Publication date: March 11, 2021
    Inventors: Stephen Clifford Waller, Alyssa Kirk Rollando, Richard Kevin Gilroy, Philip Lee Johnson, James Marion Stiles, Sara Ellen Wilson
  • Publication number: 20210007724
    Abstract: The present disclosure relates to devices and methods for delivery of a ferrofluid to a targeted treatment site, such as delivery of a ferroadhesive to a pathological fistula to occlude the fistula. A device includes a catheter having a lumen and a distal opening. A hollow solenoid is coupled to a distal section of the catheter, and a hollow core of the solenoid allows passage of a ferrofluid through the catheter and through the hollow core so that it may exit past the distal end of the hollow solenoid. The solenoid may be selectively actuated to maintain or control the position of the delivered ferrofluid.
    Type: Application
    Filed: February 28, 2020
    Publication date: January 14, 2021
    Inventors: Stephen Clifford Waller, Alyssa Kirk Rollando, Richard Kevin Gilroy, Philip Lee Johnson, James Marion Stiles, Sara Ellen Wilson
  • Publication number: 20200214900
    Abstract: A barrier system is provided for use in reducing infections associated with post-operative surgical incision and/or a percutaneous medical device, such as a catheter, that is disposed within the surgical incision. Such a barrier system may include: a barrier device having a skin-contacting surface and a catheter-receiving surface; and an adhesive composition configured for adhering to skin, the barrier device, and/or the catheter so as to form a barrier at or adjacent to an incision in the skin where the catheter is percutaneously inserted through the skin. A tensioning anchor and associated system of two or more tensioning anchors is provided for post-operative wound closure. A method for applying and removing the barrier device and tensioning anchors is also provided.
    Type: Application
    Filed: September 16, 2019
    Publication date: July 9, 2020
    Inventors: Stephen Clifford Waller, Dhaval Bhavsar
  • Patent number: 10575839
    Abstract: The present disclosure relates to devices and methods for delivery of a ferrofluid to a targeted treatment site, such as delivery of a ferroadhesive to a pathological fistula to occlude the fistula. A device includes a catheter having a lumen and a distal opening. A hollow solenoid is coupled to a distal section of the catheter, and a hollow core of the solenoid allows passage of a ferrofluid through the catheter and through the hollow core so that it may exit past the distal end of the hollow solenoid. The solenoid may be selectively actuated to maintain or control the position of the delivered ferrofluid.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: March 3, 2020
    Assignee: University of Kansas
    Inventors: Stephen Clifford Waller, Alyssa Kirk Rollando, Richard Kevin Gilroy, Philip Lee Johnson, James Marion Stiles, Sara Ellen Wilson
  • Publication number: 20200008982
    Abstract: A barrier system is provided for use in reducing infections associated with post-operative surgical incision and/or a percutaneous medical device, such as a catheter, that is disposed within the surgical incision. Such a barrier system may include: a barrier device having a skin-contacting surface and a catheter-receiving surface; and an adhesive composition configured for adhering to skin, the barrier device, and/or the catheter so as to form a barrier at or adjacent to an incision in the skin where the catheter is percutaneously inserted through the skin. A tensioning anchor and associated system of two or more tensioning anchors is provided for post-operative wound closure. A method for applying and removing the barrier device and tensioning anchors is also provided.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Inventors: Stephen Clifford Waller, Dhaval Bhavsar
  • Patent number: 10413450
    Abstract: A barrier system is provided for use in reducing infections associated with post-operative surgical incision and/or a percutaneous medical device, such as a catheter, that is disposed within the surgical incision. Such a barrier system may include: a barrier device having a skin-contacting surface and a catheter-receiving surface; and an adhesive composition configured for adhering to skin, the barrier device, and/or the catheter so as to form a barrier at or adjacent to an incision in the skin where the catheter is percutaneously inserted through the skin. A tensioning anchor and associated system of two or more tensioning anchors is provided for post-operative wound closure. A method for applying and removing the barrier device and tensioning anchors is also provided.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: September 17, 2019
    Assignee: University of Kansas
    Inventors: Stephen Clifford Waller, Dhaval Bhavsar
  • Publication number: 20170135683
    Abstract: The present disclosure relates to devices and methods for delivery of a ferrofluid to a targeted treatment site, such as delivery of a ferroadhesive to a pathological fistula to occlude the fistula. A device includes a catheter having a lumen and a distal opening. A hollow solenoid is coupled to a distal section of the catheter, and a hollow core of the solenoid allows passage of a ferrofluid through the catheter and through the hollow core so that it may exit past the distal end of the hollow solenoid. The solenoid may be selectively actuated to maintain or control the position of the delivered ferrofluid.
    Type: Application
    Filed: January 30, 2017
    Publication date: May 18, 2017
    Inventors: Stephen Clifford Waller, Alyssa Kirk Rollando, Richard Kevin Gilroy, Philip Lee Johnson, James Marion Stiles, Sara Ellen Wilson
  • Publication number: 20160317359
    Abstract: A barrier system is provided for use in reducing infections associated with post-operative surgical incision and/or a percutaneous medical device, such as a catheter, that is disposed within the surgical incision. Such a barrier system may include: a barrier device having a skin-contacting surface and a catheter-receiving surface; and an adhesive composition configured for adhering to skin, the barrier device, and/or the catheter so as to form a barrier at or adjacent to an incision in the skin where the catheter is percutaneously inserted through the skin. A tensioning anchor and associated system of two or more tensioning anchors is provided for post-operative wound closure. A method for applying and removing the barrier device and tensioning anchors is also provided.
    Type: Application
    Filed: July 7, 2016
    Publication date: November 3, 2016
    Inventors: Stephen Clifford Waller, Dhaval Bhavsar