Patents by Inventor Peter A. Barnett

Peter A. Barnett 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: 11484628
    Abstract: Embodiments of the present invention provide a method of treating a stricture in a nonvascular body lumen such as urethral strictures, benign prostatic hyperplasia (BPH) strictures, ureteral strictures, esophageal strictures, sinus strictures, and biliary tract strictures. Embodiments of the present invention provide a method for treating at least one of benign prostatic hyperplasia (BPH), prostate cancer, asthma, and chronic obstructive pulmonary disease (COPD). The method can include delivering, for example, via drug coated balloon catheters, anti-inflammatory and anti-proliferative drugs (e.g., rapamycin, paclitaxel, and their analogues) and one or more additives.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: November 1, 2022
    Assignee: Urotronic, Inc.
    Inventors: Lixiao Wang, Peter Barnett
  • Patent number: 11471655
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: October 18, 2022
    Assignee: Urotronic, Inc.
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Patent number: 11471656
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: October 18, 2022
    Assignee: Urotronic, Inc.
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Publication number: 20220323732
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Application
    Filed: June 17, 2022
    Publication date: October 13, 2022
    Inventors: Lixiao Wang, Peter Barnett
  • Publication number: 20220323653
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Application
    Filed: June 17, 2022
    Publication date: October 13, 2022
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Patent number: 11439801
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: September 13, 2022
    Assignee: Urotronic, Inc.
    Inventors: Lixiao Wang, Peter Barnett
  • Publication number: 20210361918
    Abstract: A balloon catheter for treating, preventing, or reducing the recurrence of a stricture and/or cancer, or for treating benign prostatic hyperplasia (BPH), in a non-vascular body lumen; the ballon catheter comprising: An elongated balloon; a coating layer overlying an exterior surface of the balloon wherein the coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent; and a length-control mechanism (600) which stretches and elongates the balloon during deflation, giving the balloon a smaller cross-sectional deflated profile for tracking through the body lumen and for removal after treatment.
    Type: Application
    Filed: February 21, 2020
    Publication date: November 25, 2021
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Publication number: 20210259976
    Abstract: Various embodiments disclosed relate to polymer-encapsulated drug particles and a drug-releasing coating including the same, as well as drug-coated balloon catheters for treating, preventing, or reducing the recurrence of strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes the polymer-encapsulated drug particles; or a drug-releasing coating including the polymer-encapsulated drug particles; or a therapeutic agent and a first and/or second additive; or a combination thereof.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 26, 2021
    Inventors: Lixiao Wang, Peter Barnett
  • Publication number: 20210228780
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 29, 2021
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Publication number: 20210205502
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Patent number: 10994103
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: May 4, 2021
    Assignee: Urotronic, Inc.
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Patent number: 10994104
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: May 4, 2021
    Assignee: Urotronic, Inc.
    Inventors: Lixiao Wang, Peter Barnett
  • Patent number: 10987451
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: April 27, 2021
    Assignee: Urotronic, Inc.
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Publication number: 20210113823
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Application
    Filed: December 1, 2020
    Publication date: April 22, 2021
    Inventors: Lixiao Wang, Peter Barnett
  • Publication number: 20210113742
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating, preventing, or reducing the recurrence of a stricture and/or cancer, or for treating benign prostatic hyperplasia (BPH), in a non-vascular body lumen and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent. In some embodiments, the balloon catheter includes a length-control mechanism which stretches and elongates the balloon when it is in a deflated state, giving the balloon a smaller cross-sectional deflated profile for tracking through the body lumen and for removal after treatment.
    Type: Application
    Filed: December 23, 2020
    Publication date: April 22, 2021
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Publication number: 20210077666
    Abstract: Embodiments of the present invention provide a method of treating a stricture in a nonvascular body lumen such as urethral strictures, benign prostatic hyperplasia (BPH) strictures, ureteral strictures, esophageal strictures, sinus strictures, and biliary tract strictures. Embodiments of the present invention provide a method for treating at least one of benign prostatic hyperplasia (BPH), prostate cancer, asthma, and chronic obstructive pulmonary disease (COPD). The method can include delivering, for example, via drug coated balloon catheters, anti-inflammatory and anti-proliferative drugs (e.g., rapamycin, paclitaxel, and their analogues) and one or more additives.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Lixiao Wang, Peter Barnett
  • Publication number: 20210052864
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Application
    Filed: October 26, 2020
    Publication date: February 25, 2021
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Publication number: 20210052862
    Abstract: Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
    Type: Application
    Filed: October 26, 2020
    Publication date: February 25, 2021
    Inventors: Lixiao Wang, Peter Barnett, David Hendrickson
  • Patent number: D915779
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: April 13, 2021
    Assignee: PricewaterhouseCoopers LLP
    Inventors: David Clarke, Danielle Lange, Peter Barnett
  • Patent number: D915780
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: April 13, 2021
    Assignee: PricewaterhouseCoopers LLP
    Inventors: David Clarke, Danielle Lange, Peter Barnett