Patents by Inventor Trung Ho Pham

Trung Ho Pham 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: 20230404756
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, a leaflet connector carried by a distal end of the catheter can be anchored to a superior surface of a mitral valve leaflet. A needle is axially advanceable through the leaflet connector and through the leaflet. A leaflet anchor having a leaflet suture can be advanced out of the needle to secure the mitral valve leaflet to the leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Application
    Filed: May 23, 2023
    Publication date: December 21, 2023
    Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
  • Publication number: 20230225865
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, the catheter can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to a leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Application
    Filed: June 2, 2021
    Publication date: July 20, 2023
    Inventors: Cameron Paul Purcell, Gordon B. Bishop, Trung Ho Pham, Stephen R. McDaniel, Hien Ngoc Lam, Whittaker Ian Hamill, Katie Nicole Riojas
  • Patent number: 11690719
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, a leaflet connector carried by a distal end of the catheter can be anchored to a superior surface of a mitral valve leaflet. A needle is axially advanceable through the leaflet connector and through the leaflet. A leaflet anchor having a leaflet suture can be advanced out of the needle to secure the mitral valve leaflet to the leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: July 4, 2023
    Assignee: Pipeline Medical Technologies, Inc.
    Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
  • Patent number: 11666441
    Abstract: Methods and devices for transvascular prosthetic chordae tendineae implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, a leaflet anchor having a leaflet suture is secured to the mitral valve leaflet. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae. The suture lock has a body with a suture path extending therethrough. A wall in the housing is movable to reduce the cross section of the suture path. A drive mechanism advances the movable wall to clamp sutures extending through the suture path, in response to rotation of a coupling on the housing.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: June 6, 2023
    Assignee: Pipeline Medical Technologies, Inc.
    Inventors: Stephen McDaniel, Gordon B. Bishop, Erik Griswold, Trung Ho Pham, Cameron Paul Purcell
  • Patent number: 11083580
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, the catheter can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to a leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: August 10, 2021
    Assignee: Pipeline Medical Technologies, Inc.
    Inventors: Cameron Paul Purcell, Erik Griswold, Gordon B. Bishop, Stephen McDaniel, Trung Ho Pham
  • Publication number: 20200390554
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, a leaflet connector carried by a distal end of the catheter can be anchored to a superior surface of a mitral valve leaflet. A needle is axially advanceable through the leaflet connector and through the leaflet. A leaflet anchor having a leaflet suture can be advanced out of the needle to secure the mitral valve leaflet to the leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Application
    Filed: May 21, 2020
    Publication date: December 17, 2020
    Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
  • Patent number: 10660753
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, a leaflet connector carried by a distal end of the catheter can be anchored to a superior surface of a mitral valve leaflet. A needle is axially advanceable through the leaflet connector and through the leaflet. A leaflet anchor having a leaflet suture can be advanced out of the needle to secure the mitral valve leaflet to the leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: May 26, 2020
    Assignee: Pipeline Medical Techologies, Inc.
    Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
  • Patent number: 10617523
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium to attach a leaflet anchor having a leaflet suture to a mitral valve leaflet. A ventricular anchor has a hub with a helical anchor and a core wire extending through the helical anchor. A radiopaque marker may be axially movably carried on the core wire, and a spring biases the marker in a distal direction. The marker is advanced proximally on the tissue surface relative to the helical anchor as the helical anchor is advanced distally into tissue to secure a ventricular suture to the ventricular wall. A leaflet suture and the ventricular suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: April 14, 2020
    Assignee: Pipeline Medical Technologies, Inc.
    Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
  • Patent number: 10548733
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, the catheter can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to a leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: February 4, 2020
    Assignee: Pipeline Medical Technologies, Inc.
    Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
  • Patent number: 10543090
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. A helical ventricular anchor subassembly is advanceable through the catheter, having a ventricular suture extending proximally through the catheter. A leaflet anchor subassembly is advanceable through the catheter, having a leaflet suture extending proximally through the catheter. From an atrium side, the leaflet anchor subassembly can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to the leaflet suture. The ventricular anchor subassembly secures the ventricular anchor to a ventricular wall. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: January 28, 2020
    Assignee: Pipeline Medical Technologies, Inc.
    Inventors: Erik Griswold, Gordon B. Bishop, Stephen McDaniel, Trung Ho Pham, Cameron Paul Purcell
  • Publication number: 20190328527
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, a leaflet connector carried by a distal end of the catheter can be anchored to a superior surface of a mitral valve leaflet. A needle is axially advanceable through the leaflet connector and through the leaflet. A leaflet anchor having a leaflet suture can be advanced out of the needle to secure the mitral valve leaflet to the leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Application
    Filed: July 11, 2019
    Publication date: October 31, 2019
    Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
  • Publication number: 20190328529
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. A helical ventricular anchor subassembly is advanceable through the catheter, having a ventricular suture extending proximally through the catheter. A leaflet anchor subassembly is advanceable through the catheter, having a leaflet suture extending proximally through the catheter. From an atrium side, the leaflet anchor subassembly can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to the leaflet suture. The ventricular anchor subassembly secures the ventricular anchor to a ventricular wall. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Application
    Filed: July 11, 2019
    Publication date: October 31, 2019
    Inventors: Erik Griswold, Gordon B. Bishop, Stephen McDaniel, Trung Ho Pham, Cameron Paul Purcell
  • Publication number: 20190328528
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium to attach a leaflet anchor having a leaflet suture to a mitral valve leaflet. A ventricular anchor has a hub with a helical anchor and a core wire extending through the helical anchor. A radiopaque marker may be axially movably carried on the core wire, and a spring biases the marker in a distal direction. The marker is advanced proximally on the tissue surface relative to the helical anchor as the helical anchor is advanced distally into tissue to secure a ventricular suture to the ventricular wall. A leaflet suture and the ventricular suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Application
    Filed: July 11, 2019
    Publication date: October 31, 2019
    Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
  • Publication number: 20190328530
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, a leaflet anchor having a leaflet suture is secured to the mitral valve leaflet. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae. The suture lock has a body with a suture path extending therethrough. A wall in the housing is movable to reduce the cross section of the suture path. A drive mechanism advances the movable wall to clamp sutures extending through the suture path, in response to rotation of a coupling on the housing.
    Type: Application
    Filed: July 11, 2019
    Publication date: October 31, 2019
    Inventors: Stephen McDaniel, Gordon B. Bishop, Erik Griswold, Trung Ho Pham, Cameron Paul Purcell
  • Publication number: 20190328526
    Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, the catheter can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to a leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
    Type: Application
    Filed: July 11, 2019
    Publication date: October 31, 2019
    Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
  • Patent number: 9155574
    Abstract: A bone fixation device is provided with an elongate body having a longitudinal axis and having a first state in which at least a portion of the body is flexible and a second state in which the body is generally rigid, an actuateable gripper disposed at one or more locations on the elongated body, a hub located on a proximal end of the elongated body, and an actuator operably connected to the gripper(s) to deploy the gripper(s) from a retracted configuration to an expanded configuration. Methods of repairing a fracture of a bone are also disclosed. One such method comprises inserting a bone fixation device into an intramedullary space of the bone to place at least a portion of an elongate body of the fixation device in a flexible state on one side of the fracture and at least a portion of a hub on another side of the fracture, and operating an actuator to deploy at least one gripper of the fixation device to engage an inner surface of the intramedullary space to anchor the fixation device to the bone.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: October 13, 2015
    Assignee: Sonoma Orthopedic Products, Inc.
    Inventors: Heber Saravia, Stephen R. McDaniel, Trung Ho Pham, Charles L. Nelson, Stephen Gunther
  • Patent number: 9060820
    Abstract: A segmented bone fixation device is provided with an elongate body having a longitudinal axis and having a first state in which at least a portion of the body is flexible and a second state in which the body is generally rigid. Methods of repairing a fracture of a bone are also disclosed. One such method comprises inserting a segmented fixation device into an intramedullary space of the bone to place at least a portion of the fixation device in a flexible state on one side of the fracture, providing rigidity across the fracture, and operating an actuator to deploy at least one gripper to engage an inner surface of the intramedullary space to anchor the fixation device to the bone. Various configurations allow a segmented device body to change shape as it moves from a flexible state to a rigid state.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: June 23, 2015
    Assignee: Sonoma Orthopedic Products, Inc.
    Inventors: Charles L. Nelson, Trung Ho Pham, Vernon R. Hartdegen, Jr., Nathan D. Brown
  • Patent number: 8961516
    Abstract: A straight intramedullary bone fracture fixation device is provided with an elongate body having a longitudinal axis for deployment in a long bone, such as a clavicle. Methods of repairing a fracture of a bone are also disclosed. One such method comprises inserting a bone fixation device into an intramedullary space of the bone to place at least a portion of an elongate body of the fixation device on one side of the fracture and at least a portion of a hub on another side of the fracture, and engaging an inner surface of the intramedullary space to anchor the fixation device to the bone. Various configurations and designs may be used in combination with other fixation device components.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: February 24, 2015
    Assignee: Sonoma Orthopedic Products, Inc.
    Inventors: Charles L. Nelson, Stephen R. McDaniel, Vernon R. Hartdegen, Jr., Trung Ho Pham, Darryll Leonard Charles Fletcher, Nathan D. Brown
  • Publication number: 20140074093
    Abstract: A straight intramedullary bone fracture fixation device is provided with an elongate body having a longitudinal axis for deployment in a long bone, such as a clavicle. Methods of repairing a fracture of a bone are also disclosed. One such method comprises inserting a bone fixation device into an intramedullary space of the bone to place at least a portion of an elongate body of the fixation device on one side of the fracture and at least a portion of a hub on another side of the fracture, and engaging an inner surface of the intramedullary space to anchor the fixation device to the bone. Various configurations and designs may be used in combination with other fixation device components.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: Sonoma Orthopedic Products, Inc.
    Inventors: Charles L. Nelson, Stephen R. McDaniel, Vernon R. Hartdegen, JR., Trung Ho Pham, Darryll Leonard Charles Fletcher, Nathan D. Brown
  • Publication number: 20140031823
    Abstract: A bone fixation device is provided with an elongate body having a longitudinal axis and having a first state in which at least a portion of the body is flexible and a second state in which the body is generally rigid, an actuateable gripper disposed at one or more locations on the elongated body, a hub located on a proximal end of the elongated body, and an actuator operably connected to the gripper(s) to deploy the gripper(s) from a retracted configuration to an expanded configuration. Methods of repairing a fracture of a bone are also disclosed. One such method comprises inserting a bone fixation device into an intramedullary space of the bone to place at least a portion of an elongate body of the fixation device in a flexible state on one side of the fracture and at least a portion of a hub on another side of the fracture, and operating an actuator to deploy at least one gripper of the fixation device to engage an inner surface of the intramedullary space to anchor the fixation device to the bone.
    Type: Application
    Filed: September 6, 2013
    Publication date: January 30, 2014
    Inventors: Kai U. Mazur, Stephen R. McDaniel, Trung Ho Pham, Charles L. Nelson, Stephen B. Gunther, Herber Saravia, Robert G. Coleman