Patents by Inventor Matthew J. Callaghan

Matthew J. Callaghan 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: 11833285
    Abstract: System and methods are provided for harvesting one or more organs, e.g., a lung from a donor body. In one embodiment, a distal end of a tubular member is introduced into the donor body's vasculature via a percutaneous access site, and the tubular member is manipulated until the distal end of the tubular member is disposed within the thoracic duct. Fluid is removed from the thoracic duct through the tubular member to a location exterior to the patient's body, and one or more organs are removed from the donor body. Optionally, one or more parameters within the thoracic duct or other parameters of the donor body may be monitored and fluid removal may be adjusted to reduce fluid accumulation within the one or more organs.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: December 5, 2023
    Inventors: Matthew J. Callaghan, Christian Scott Eversull, Stephen Arie Leeflang
  • Publication number: 20220387686
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular member may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 8, 2022
    Inventors: Matthew J. Callaghan, Christian S. Eversull, Stephen A. Leeflang
  • Publication number: 20220339336
    Abstract: System and methods are provided for treating a patient that include a delivery device sized for introduction into a target site within a patient's body, a source of one or more therapeutic and/or diagnostic agents coupled to the delivery device, and a tubular member sized for introduction into the patient's vasculature to isolate the thoracic duct. Once the thoracic duct is isolated, fluid may be removed from the thoracic duct, e.g., to prevent the agents that transit from the target site into the thoracic duct from entering the patient's vasculature, and/or to modulate flow through the thoracic duct to modulate concentration and/or resident time of the agents at the target site. The one or more agents may include particles sized for preferential transit into the lymphatic system.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 27, 2022
    Inventors: Matthew J. Callaghan, Christian S. Eversull, Stephen A. Leeflang
  • Patent number: 11357897
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular member may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: June 14, 2022
    Assignee: LXS, LLC
    Inventors: Matthew J. Callaghan, Stephen A. Leeflang, Christian S. Eversull
  • Patent number: 11298449
    Abstract: System and methods are provided for treating a patient that include a delivery device sized for introduction into a target site within a patient's body, a source of one or more therapeutic and/or diagnostic agents coupled to the delivery device, and a tubular member sized for introduction into the patient's vasculature to isolate the thoracic duct. Once the thoracic duct is isolated, fluid may be removed from the thoracic duct, e.g., to prevent the agents that transit from the target site into the thoracic duct from entering the patient's vasculature, and/or to modulate flow through the thoracic duct to modulate concentration and/or resident time of the agents at the target site. The one or more agents may include particles sized for preferential transit into the lymphatic system.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: April 12, 2022
    Assignee: LXS, LLC
    Inventors: Matthew J. Callaghan, Christian S. Eversull, Stephen A. Leeflang
  • Patent number: 11058854
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular member may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: July 13, 2021
    Assignee: LXS, LLC
    Inventors: Christian S. Eversull, Stephen A. Leeflang, Matthew J. Callaghan
  • Publication number: 20210008268
    Abstract: System and methods are provided for harvesting one or more organs, e.g., a lung from a donor body. In one embodiment, a distal end of a tubular member is introduced into the donor body's vasculature via a percutaneous access site, and the tubular member is manipulated until the distal end of the tubular member is disposed within the thoracic duct. Fluid is removed from the thoracic duct through the tubular member to a location exterior to the patient's body, and one or more organs are removed from the donor body. Optionally, one or more parameters within the thoracic duct or other parameters of the donor body may be monitored and fluid removal may be adjusted to reduce fluid accumulation within the one or more organs.
    Type: Application
    Filed: June 22, 2020
    Publication date: January 14, 2021
    Inventors: Matthew J. Callaghan, Christian Scott Eversull, Stephen Arie Leeflang
  • Patent number: 10737084
    Abstract: Devices and methods for draining excess lymph fluid are disclosed. The device can be fixed to the blood vessel adjacent to the thoracic duct. The device can have a port for withdrawing lymph fluid exiting the thoracic duct. The device can have a cannula and/or subcutaneous port to draw the lymph fluid away from the thoracic duct and reduce hemostatic pressure in the lymphatic system.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: August 11, 2020
    Assignees: The Board of Trustees of the Leland Stanford Junior University, LXS, LLC
    Inventors: Matthew J. Callaghan, Joelle A. Faulkner, Kevin Zi Jun Chao, John Avi Roop, Stephen Arie Leeflang, Christian Scott Eversull
  • Patent number: 10688236
    Abstract: System and methods are provided for harvesting one or more organs, e.g., a lung from a donor body. In one embodiment, a distal end of a tubular member is introduced into the donor body's vasculature via a percutaneous access site, and the tubular member is manipulated until the distal end of the tubular member is disposed within the thoracic duct. Fluid is removed from the thoracic duct through the tubular member to a location exterior to the patient's body, and one or more organs are removed from the donor body. Optionally, one or more parameters within the thoracic duct or other parameters of the donor body may be monitored and fluid removal may be adjusted to reduce fluid accumulation within the one or more organs.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: June 23, 2020
    Assignee: LXS, LLC
    Inventors: Matthew J. Callaghan, Christian S. Eversull, Stephen A. Leeflang
  • Publication number: 20190060546
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular member may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.
    Type: Application
    Filed: August 20, 2018
    Publication date: February 28, 2019
    Inventors: Matthew J. Callaghan, Stephen A. Leeflang, Christian S. Eversull
  • Patent number: 10111997
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. An apparatus is provided that includes a catheter including proximal and distal ends and a lumen extending therebetween. An expandable sealing member is carried beyond the distal end that is expandable from a delivery condition to a deployed condition in which the sealing member defines a concave contact surface shaped for engaging a vessel wall surrounding the outlet of the thoracic duct. The sealing member includes an aspiration port in the contact surface communicating with the catheter lumen for removing fluid from the thoracic duct.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: October 30, 2018
    Inventors: Matthew J. Callaghan, Stephen A. Leeflang, Christian S. Eversull
  • Patent number: 10052059
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular member may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.
    Type: Grant
    Filed: March 15, 2014
    Date of Patent: August 21, 2018
    Inventors: Matthew J. Callaghan, Stephen A. Leeflang, Christian S. Eversull
  • Publication number: 20170354812
    Abstract: Devices and methods for draining excess lymph fluid are disclosed. The device can be fixed to the blood vessel adjacent to the thoracic duct. The device can have a port for withdrawing lymph fluid exiting the thoracic duct. The device can have a cannula and/or subcutaneous port to draw the lymph fluid away from the thoracic duct and reduce hemostatic pressure in the lymphatic system.
    Type: Application
    Filed: June 19, 2017
    Publication date: December 14, 2017
    Inventors: Matthew J. Callaghan, Joelle A. Faulkner, Kevin Zi Jun Chao, John Avi Roop, Stephen Arie Leeflang, Christian Scott Eversull
  • Publication number: 20170326343
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular member may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 16, 2017
    Inventors: Christian S. Eversull, Stephen A. Leeflang, Matthew J. Callaghan
  • Patent number: 9682223
    Abstract: Devices and methods for draining excess lymph fluid are disclosed. The device can be fixed to the blood vessel adjacent to the thoracic duct. The device can have a port for withdrawing lymph fluid exiting the thoracic duct. The device can have a cannula and/or subcutaneous port to draw the lymph fluid away from the thoracic duct and reduce hemostatic pressure in the lymphatic system.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: June 20, 2017
    Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Matthew J. Callaghan, Joelle A. Faulkner, Kevin Zi Jun Chao, John Avi Roop
  • Patent number: 9642991
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: May 9, 2017
    Assignee: LXS, LLC
    Inventors: Christian S. Eversull, Stephen A. Leeflang, Matthew J. Callaghan
  • Patent number: 9421316
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: August 23, 2016
    Inventors: Stephen A. Leeflang, Christian S. Eversull, Matthew J. Callaghan
  • Publication number: 20140364765
    Abstract: System and methods are provided for treating a patient that include a delivery device sized for introduction into a target site within a patient's body, a source of one or more therapeutic and/or diagnostic agents coupled to the delivery device, and a tubular member sized for introduction into the patient's vasculature to isolate the thoracic duct. Once the thoracic duct is isolated, fluid may be removed from the thoracic duct, e.g., to prevent the agents that transit from the target site into the thoracic duct from entering the patient's vasculature, and/or to modulate flow through the thoracic duct to modulate concentration and/or resident time of the agents at the target site. The one or more agents may include particles sized for preferential transit into the lymphatic system.
    Type: Application
    Filed: June 9, 2014
    Publication date: December 11, 2014
    Inventors: Matthew J. Callaghan, Christian S. Eversull, Stephen A. Leeflang
  • Publication number: 20140358071
    Abstract: System and methods are provided for harvesting one or more organs, e.g., a lung from a donor body. In one embodiment, a distal end of a tubular member is introduced into the donor body's vasculature via a percutaneous access site, and the tubular member is manipulated until the distal end of the tubular member is disposed within the thoracic duct. Fluid is removed from the thoracic duct through the tubular member to a location exterior to the patient's body, and one or more organs are removed from the donor body. Optionally, one or more parameters within the thoracic duct or other parameters of the donor body may be monitored and fluid removal may be adjusted to reduce fluid accumulation within the one or more organs.
    Type: Application
    Filed: July 28, 2014
    Publication date: December 4, 2014
    Inventors: Matthew J. Callaghan, Christian S. Eversull, Stephen A. Leeflang
  • Publication number: 20140303461
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular member may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.
    Type: Application
    Filed: March 15, 2014
    Publication date: October 9, 2014
    Inventors: Matthew J. Callaghan, Stephen A. Leeflang, Christian S. Eversull