Patents by Inventor Erik Griswold
Erik Griswold 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: 20230380969Abstract: 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: May 22, 2023Publication date: November 30, 2023Inventors: Gordon B. Bishop, Erik Griswold, Stephen R. McDaniel, Trung H. Pham, Cameron P. Purcell, Hien N. Lam
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Patent number: 11696828Abstract: Methods and devices for transvascular prosthetic chordae tendinae 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: December 11, 2019Date of Patent: July 11, 2023Assignee: Pipeline Medical Technologies, Inc.Inventors: Gordon B. Bishop, Erik Griswold, Stephen R. McDaniel, Trung H. Pham, Cameron P. Purcell, Hien N. Lam
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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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Publication number: 20230038490Abstract: Delivery catheters for delivery of prosthetic heart valves are provided. The delivery catheters include brim recapture funnels configured for recapture of prosthetic heart valves. The brim recapture funnels are configured to recapture valve brims of partially deployed prosthetic heart valves to reduce or minimize damage to patient anatomy during a valve withdrawal procedure.Type: ApplicationFiled: June 30, 2022Publication date: February 9, 2023Inventors: Erik GRISWOLD, David GROSSMAN, Radhika BHARGAV, Victoria TIEN, Priya NAIR
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Publication number: 20230016149Abstract: A delivery system for prosthetic heart valves are provided. The delivery system includes a flexible shaft, a distal sheath capsule configured to contain the prosthetic heart valve, an inner steerable catheter including an inner distal flex component, and an outer steerable catheter including an outer distal flex component. The inner distal flex component includes a first cut pattern and a second cut pattern distal to the first cut pattern. The outer distal flex component includes a third cut pattern. The inner steerable catheter is rotatable at least 90 degrees relative to the outer steerable catheter when the third cut pattern of the outer distal flex component is disposed over at least a portion of the first cut pattern of the inner distal flex component and each of the inner steerable catheter and the outer steerable catheter is in the flexed configuration.Type: ApplicationFiled: May 31, 2022Publication date: January 19, 2023Inventors: Erik GRISWOLD, Joshua DWORK, Jamie DUNAWAY, Finn RINNE, Nathan WIEMEYER, Kevin MAUCH
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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: 20210186699Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium, through the mitral valve, and into the left ventricle. A ventricular anchor is deployed from the catheter and into a wall of the left ventricle, leaving a ventricular suture attached to the ventricular anchor and extending proximally through the catheter. A leaflet anchor is deployed to secure a mitral valve leaflet to a leaflet suture, with the leaflet suture extending proximally through the catheter. The leaflet suture is secured to the ventricular suture to limit a range of travel of the leaflet in the direction of the left atrium. Also disclosed is an assembled in situ mitral valve leaflet restraint, having a neo papillary muscle and a neo chordae tendinea.Type: ApplicationFiled: January 20, 2021Publication date: June 24, 2021Inventors: Gordon B. Bishop, Randall T. Lashinski, Erik Griswold
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Patent number: 10925731Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium, through the mitral valve, and into the left ventricle. A ventricular anchor is deployed from the catheter and into a wall of the left ventricle, leaving a ventricular suture attached to the ventricular anchor and extending proximally through the catheter. A leaflet anchor is deployed to secure a mitral valve leaflet to a leaflet suture, with the leaflet suture extending proximally through the catheter. The leaflet suture is secured to the ventricular suture to limit a range of travel of the leaflet in the direction of the left atrium. Also disclosed is an assembled in situ mitral valve leaflet restraint, having a neo papillary muscle and a neo chordae tendinea.Type: GrantFiled: December 29, 2017Date of Patent: February 23, 2021Assignee: Pipeline Medical Technologies, Inc.Inventors: Gordon B. Bishop, Randall T. Lashinski, Erik Griswold
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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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Publication number: 20200297489Abstract: Methods and devices for transvascular prosthetic chordae tendinae 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: December 11, 2019Publication date: September 24, 2020Inventors: Gordon B. Bishop, Erik Griswold, Stephen R. McDaniel, Trung H. Pham, Cameron P. Purcell, Hien N. Lam
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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: 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: 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: 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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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: 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