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).
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Publication number: 20230404756Abstract: 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: ApplicationFiled: May 23, 2023Publication date: December 21, 2023Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
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Publication number: 20230225865Abstract: 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: ApplicationFiled: June 2, 2021Publication date: July 20, 2023Inventors: Cameron Paul Purcell, Gordon B. Bishop, Trung Ho Pham, Stephen R. McDaniel, Hien Ngoc Lam, Whittaker Ian Hamill, Katie Nicole Riojas
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Patent number: 11690719Abstract: 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: GrantFiled: May 21, 2020Date of Patent: July 4, 2023Assignee: Pipeline Medical Technologies, Inc.Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
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Patent number: 11666441Abstract: 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: GrantFiled: July 11, 2019Date of Patent: June 6, 2023Assignee: Pipeline Medical Technologies, Inc.Inventors: Stephen McDaniel, Gordon B. Bishop, Erik Griswold, Trung Ho Pham, Cameron Paul Purcell
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Patent number: 11083580Abstract: 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: GrantFiled: March 8, 2019Date of Patent: August 10, 2021Assignee: Pipeline Medical Technologies, Inc.Inventors: Cameron Paul Purcell, Erik Griswold, Gordon B. Bishop, Stephen McDaniel, Trung Ho Pham
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Publication number: 20200390554Abstract: 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: ApplicationFiled: May 21, 2020Publication date: December 17, 2020Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
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Patent number: 10660753Abstract: 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: GrantFiled: July 11, 2019Date of Patent: May 26, 2020Assignee: Pipeline Medical Techologies, Inc.Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
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Patent number: 10617523Abstract: 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: GrantFiled: July 11, 2019Date of Patent: April 14, 2020Assignee: Pipeline Medical Technologies, Inc.Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
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Patent number: 10548733Abstract: 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: GrantFiled: July 11, 2019Date of Patent: February 4, 2020Assignee: Pipeline Medical Technologies, Inc.Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
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Patent number: 10543090Abstract: 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: GrantFiled: July 11, 2019Date of Patent: January 28, 2020Assignee: Pipeline Medical Technologies, Inc.Inventors: Erik Griswold, Gordon B. Bishop, Stephen McDaniel, Trung Ho Pham, Cameron Paul Purcell
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Publication number: 20190328527Abstract: 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: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
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Publication number: 20190328529Abstract: 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: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Erik Griswold, Gordon B. Bishop, Stephen McDaniel, Trung Ho Pham, Cameron Paul Purcell
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Publication number: 20190328528Abstract: 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: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
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Publication number: 20190328530Abstract: 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: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Stephen McDaniel, Gordon B. Bishop, Erik Griswold, Trung Ho Pham, Cameron Paul Purcell
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Publication number: 20190328526Abstract: 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: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
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Patent number: 9155574Abstract: 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: GrantFiled: September 28, 2009Date of Patent: October 13, 2015Assignee: Sonoma Orthopedic Products, Inc.Inventors: Heber Saravia, Stephen R. McDaniel, Trung Ho Pham, Charles L. Nelson, Stephen Gunther
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Patent number: 9060820Abstract: 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: GrantFiled: September 13, 2012Date of Patent: June 23, 2015Assignee: Sonoma Orthopedic Products, Inc.Inventors: Charles L. Nelson, Trung Ho Pham, Vernon R. Hartdegen, Jr., Nathan D. Brown
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Patent number: 8961516Abstract: 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: GrantFiled: September 13, 2012Date of Patent: February 24, 2015Assignee: 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
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Publication number: 20140074093Abstract: 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: ApplicationFiled: September 13, 2012Publication date: March 13, 2014Applicant: 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
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Publication number: 20140031823Abstract: 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: ApplicationFiled: September 6, 2013Publication date: January 30, 2014Inventors: Kai U. Mazur, Stephen R. McDaniel, Trung Ho Pham, Charles L. Nelson, Stephen B. Gunther, Herber Saravia, Robert G. Coleman