Patents by Inventor Yogesh A. DAREKAR
Yogesh A. DAREKAR 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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Patent number: 11969329Abstract: A “dry” packaging in which a prosthetic heart valve is packaged within a container with hydrogel that can be provided in many forms. Certain embodiments include hydrogel that is preloaded with glycerol or the like. The hydrogel regulates the humidity within the container through a diffusion-driven mechanism if a gradient of humidity between the inside and the outside of the hydrogel exists. Humidity regulation is important to prevent the tissue of the valve structure from drying out. When the partially-hydrated hydrogel is present within container, which is saturated with air of a predefined humidity, the water molecules from the air will be absorbed by the hydrogel if the air humidity is high (i.e. when the thermodynamics favor hydrogel hydration) or vice versa. Various embodiments are configured to also house at least a portion of a delivery device for delivering the prosthetic heart valve.Type: GrantFiled: May 3, 2022Date of Patent: April 30, 2024Assignee: MEDTRONIC VASCULAR, INC.Inventors: Raymond Ryan, David Clarke, Kshitija Garde, Ya Guo, Benjamin Wong, Yogesh Darekar, Luke Lehmann, Wei Wang, Laura McKinley, Paul Devereux, Joshua Dudney, Tracey Tien, Karl Olney
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Publication number: 20240081853Abstract: An in-situ fenestration device. The device includes a sheath, a sonic catheter extending with the sheath and having a cutting tool at a distal section thereof, and a balloon catheter extending within the sonic catheter. The cutting tool of the sonic catheter is configured to cut a fenestration in a graft material at a fenestration site of a stent graft upon being energized with ultrasonic energy at a cutting frequency.Type: ApplicationFiled: September 14, 2023Publication date: March 14, 2024Inventors: Yogesh A. DAREKAR, Amal ELGAMIL, Christina E. FRANKE, Kevin M. MAUCH, Anish S. NIGADE
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SYSTEMS AND METHODS FOR MANUFACTURING PROSTHETIC HEART VALVES USING A SINGLE-PIECE VALVE SUBASSEMBLY
Publication number: 20230404749Abstract: A method of manufacturing a heart valve prosthesis includes cutting a flat sheet of a valve material into a single-piece valve pattern having two or more valve leaflet regions and a valve skirt region. The method also includes arranging the two or more valve leaflet regions of the single-piece valve pattern into a mold for forming a leaflet belly for each of the two or more valve leaflet regions. Further, the method includes fixing, while arranged in the mold, a shape of the leaflet belly of each of two or more valve leaflet regions of the single piece-valve pattern. The method additionally includes creating a side seam by attaching two longitudinal edges of the single-piece valve pattern, to thereby form a tubular valve subassembly with two or more valve leaflets. The method includes attaching the tubular valve subassembly within a tubular frame to form a heart valve prosthesis.Type: ApplicationFiled: November 8, 2021Publication date: December 21, 2023Inventors: Victoria Tien, Yogesh A. Darekar, William Seo, Genaro Morones, Jr., Karl L. Olney, Andrew Tiem-Yen Chang, Veronica Woen, Michael Allen Darwin, Marina Zamudio I Domingo, Garrett Repp -
Publication number: 20230346544Abstract: A prosthetic valve device and a method of forming a frame thereof. The method may include cutting a pattern into a tube having a first inner diameter and an axis, the pattern having a plurality of post pattern sections arranged on the tube in a circumferentially spaced-apart manner and a plurality of lattice pattern sections extending between the post pattern sections. The method may further include diametrically expanding the tube until the tube has a second inner diameter that is greater than the first inner diameter. The expanded tube may have a plurality of axial posts arranged on the expanded tube in a circumferentially spaced-apart manner and a plurality of lattices having open cells extending between the axial posts.Type: ApplicationFiled: July 7, 2023Publication date: November 2, 2023Applicant: THUBRIKAR AORTIC VALVE, INC.Inventors: Mano J. Thubrikar, Yogesh Darekar
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Patent number: 11723765Abstract: Described herein is a prosthetic valve device having an optimized valve component for durability and functionality of the collapsible leaflets. Specially designed commissures contribute to the optimization along with identified parameters. In other embodiments, the invention is a frame formed from a unique cutting pattern.Type: GrantFiled: March 2, 2020Date of Patent: August 15, 2023Inventors: Mano J. Thubrikar, Yogesh Darekar
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Publication number: 20230141002Abstract: A leaflet folding accessory or tool configured for use with a crimper when radially compressing a transcatheter valve prosthesis into a crimped configuration for delivery within a vasculature. The crimping accessory is configured to apply or remove fluid to or from the at least one leaflet of the transcatheter valve prosthesis during the crimping process to prevent protrusion of the leaflets into the frame of the transcatheter valve prosthesis that may cause leaflet pinching and damage.Type: ApplicationFiled: October 17, 2022Publication date: May 11, 2023Inventors: Matthew ZIEBOL, Alkindi KIBRIA, Victoria UNG, Matthew GENOVESE, Yogesh DAREKAR, Matthew BALDWIN, Jason BOWE, Radhika BHARGAV
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Publication number: 20220265450Abstract: A skirt-reinforcement member for supporting or reinforcing an unsupported portion of a skirt that spans across a side opening of a stent or frame of a valve prosthesis. The skirt-reinforcement member is configured to prevent billowing of the skirt material that spans across the side opening of the inner frame of the valve prosthesis, as such billowing may undesirably result in contact between the skirt and leaflets of the valve prosthesis after the valve prosthesis is deployed in situ.Type: ApplicationFiled: February 2, 2022Publication date: August 25, 2022Inventors: Yogesh DAREKAR, Brenda MCINTIRE, Eric PIERCE
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Publication number: 20220257360Abstract: A “dry” packaging in which a prosthetic heart valve is packaged within a container with hydrogel that can be provided in many forms. Certain embodiments include hydrogel that is preloaded with glycerol or the like. The hydrogel regulates the humidity within the container through a diffusion-driven mechanism if a gradient of humidity between the inside and the outside of the hydrogel exists. Humidity regulation is important to prevent the tissue of the valve structure from drying out. When the partially-hydrated hydrogel is present within container, which is saturated with air of a predefined humidity, the water molecules from the air will be absorbed by the hydrogel if the air humidity is high (i.e. when the thermodynamics favor hydrogel hydration) or vice versa. Various embodiments are configured to also house at least a portion of a delivery device for delivering the prosthetic heart valve.Type: ApplicationFiled: May 3, 2022Publication date: August 18, 2022Applicant: Medtronic Vascular, Inc.Inventors: Raymond Ryan, David Clarke, Kshitija Garde, Ya Guo, Benjamin Wong, Yogesh Darekar, Luke Lehmann, Wei Wang, Laura McKinley, Paul Devereux, Joshua Dudney, Tracey Tien, Karl Olney
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Publication number: 20220226112Abstract: The devices and methods of this disclosure relate to a heart valve prosthesis that is configured to be implanted within a native heart valve having a smaller perimeter annuli with a generally elliptical shape.Type: ApplicationFiled: April 8, 2022Publication date: July 21, 2022Inventors: Cahal MCVEIGH, Jean-Pierre DUERI, Yogesh A. DAREKAR, Priya NAIR, Finn O. RINNE, George N. HALLAK, Brenda L. MCINTIRE, Elliot J. HOWARD
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Publication number: 20220192823Abstract: A prosthesis includes a frame and a skirt coupled to a surface of the frame. The skirt extends over at least one side opening of a plurality of side openings of the frame. The prosthesis also includes a skirt-reinforcement member that spans the at least one side opening from a first crown or strut edge defining the at least one side opening to a second crown or strut edge defining the at least one side opening. The skirt-reinforcement member has a first end, a second end, and a length therebetween. The first end of the skirt-reinforcement member is attached to the first crown or strut edge and the second end of the skirt-reinforcement member is attached to the second crown or strut edge. The skirt-reinforcement member is attached to the skirt along an unsupported portion of the skirt that spans the at least one side opening.Type: ApplicationFiled: November 23, 2021Publication date: June 23, 2022Inventors: Yogesh DAREKAR, Brenda MCINTIRE, Eric PIERCE
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Publication number: 20220175521Abstract: Transcatheter aortic valve prostheses for improving the cardiac function of a patient suffering from coronary artery disease. Transcatheter aortic valve prostheses include a valve component and a frame. The valve component includes valve leaflets and a skirt. The frame includes access cells that improve access to a patient's coronary arteries if further intervention is required and/or includes a window or conduction protection cell that is oriented to align with a portion of conduction system of the heart in situ to reduce conduction disturbances of the anatomy. Suture patterns for attaching a commissure to a commissure post of the frame, and for attaching a tissue bumper to the commissure post, are also described.Type: ApplicationFiled: December 2, 2021Publication date: June 9, 2022Inventors: Matthew BALDWIN, Amy HALLAK, Rodney BELL, Matthew WESTON, Yogesh DAREKAR, Wayne FALK, David Michael MARTIN, Mike CONERNEY, David NOLAN, Cahal MCVEIGH, Karl OLNEY, Jamie DUNAWAY, Fatemeh FATEMI FAR
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Patent number: 11344399Abstract: A “dry” packaging in which a prosthetic heart valve is packaged within a container with hydrogel that can be provided in many forms. Certain embodiments include hydrogel that is preloaded with glycerol or the like. The hydrogel regulates the humidity within the container through a diffusion-driven mechanism if a gradient of humidity between the inside and the outside of the hydrogel exists. Humidity regulation is important to prevent the tissue of the valve structure from drying out. When the partially-hydrated hydrogel is present within container, which is saturated with air of a predefined humidity, the water molecules from the air will be absorbed by the hydrogel if the air humidity is high (i.e. when the thermodynamics favor hydrogel hydration) or vice versa. Various embodiments are configured to also house at least a portion of a delivery device for delivering the prosthetic heart valve.Type: GrantFiled: December 8, 2020Date of Patent: May 31, 2022Assignee: Medtronic Vascular, Inc.Inventors: Raymond Ryan, David Clarke, Kshitija Garde, Ya Guo, Benjamin Wong, Yogesh Darekar, Luke Lehmann, Wei Wang, Laura McKinley, Paul Devereux, Joshua Dudney, Tracey Tien, Karl Olney
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Publication number: 20220142771Abstract: An assembly including a transcatheter valve prosthesis and a leaflet folding accessory configured for use when compressing the transcatheter valve prosthesis into the crimped configuration. The transcatheter valve prosthesis includes a stent and a prosthetic valve component including at least one leaflet disposed within and secured to the stent. The transcatheter valve prosthesis has a crimped configuration for delivery within a vasculature and an expanded configuration for deployment within a native heart valve. The leaflet folding accessory includes a plurality of guide fingers. Each guide finger is configured to contact the prosthetic valve component and hold the at least one leaflet in a predetermined configuration when the transcatheter valve prosthesis is compressed into the crimped configuration.Type: ApplicationFiled: November 3, 2021Publication date: May 12, 2022Inventors: Grant MENON, Yogesh DAREKAR, George HALLAK
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Patent number: 11318013Abstract: The devices and methods of this disclosure relate to a heart valve prosthesis that is configured to be implanted within a native heart valve having a smaller perimeter annuli with a generally elliptical shape.Type: GrantFiled: April 21, 2020Date of Patent: May 3, 2022Assignee: MEDTRONIC, INC.Inventors: Cahal Mcveigh, Jean-Pierre Dueri, Yogesh A. Darekar, Priya Nair, Finn O. Rinne, George N. Hallak, Brenda L. McIntire, Elliot J. Howard
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Publication number: 20210322155Abstract: The devices and methods of this disclosure relate to a heart valve prosthesis that is configured to be implanted within a native heart valve having a smaller perimeter annuli with a generally elliptical shape.Type: ApplicationFiled: April 21, 2020Publication date: October 21, 2021Inventors: Cahal MCVEIGH, Jean-Pierre DUERI, Yogesh A. DAREKAR, Priya NAIR, Finn O. RINNE, George N. HALLAK, Brenda L. MCINTIRE, Elliot J. HOWARD
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Publication number: 20210113320Abstract: A “dry” packaging in which a prosthetic heart valve is packaged within a container with hydrogel that can be provided in many forms. Certain embodiments include hydrogel that is preloaded with glycerol or the like. The hydrogel regulates the humidity within the container through a diffusion-driven mechanism if a gradient of humidity between the inside and the outside of the hydrogel exists. Humidity regulation is important to prevent the tissue of the valve structure from drying out. When the partially-hydrated hydrogel is present within container, which is saturated with air of a predefined humidity, the water molecules from the air will be absorbed by the hydrogel if the air humidity is high (i.e. when the thermodynamics favor hydrogel hydration) or vice versa. Various embodiments are configured to also house at least a portion of a delivery device for delivering the prosthetic heart valve.Type: ApplicationFiled: December 8, 2020Publication date: April 22, 2021Applicant: Medtronic Vascular, Inc.Inventors: Raymond Ryan, David Clarke, Kshitija Garde, Ya Guo, Benjamin Wong, Yogesh Darekar, Luke Lehmann, Wei Wang, Laura McKinley, Paul Devereux, Joshua Dudney, Tracey Tien, Karl Olney
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Patent number: 10888408Abstract: A “dry” packaging in which a prosthetic heart valve is packaged within a container with hydrogel that can be provided in many forms. Certain embodiments include hydrogel that is preloaded with glycerol or the like. The hydrogel regulates the humidity within the container through a diffusion-driven mechanism if a gradient of humidity between the inside and the outside of the hydrogel exists. Humidity regulation is important to prevent the tissue of the valve structure from drying out. When the partially-hydrated hydrogel is present within container, which is saturated with air of a predefined humidity, the water molecules from the air will be absorbed by the hydrogel if the air humidity is high (i.e. when the thermodynamics favor hydrogel hydration) or vice versa. Various embodiments are configured to also house at least a portion of a delivery device for delivering the prosthetic heart valve.Type: GrantFiled: May 2, 2018Date of Patent: January 12, 2021Assignee: Medtronic Vascular, Inc.Inventors: Raymond Ryan, David Clarke, Kshitija Garde, Ya Guo, Benjamin Wong, Yogesh Darekar, Luke Lehmann, Wei Wang, Laura McKinley, Paul Devereux, Joshua Dudney, Tracey Tien, Karl Olney
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Publication number: 20200197174Abstract: Described herein is a prosthetic valve device having an optimized valve component for durability and functionality of the collapsible leaflets. Specially designed commissures contribute to the optimization along with identified parameters. In other embodiments, the invention is a frame formed from a unique cutting pattern.Type: ApplicationFiled: March 2, 2020Publication date: June 25, 2020Applicant: THUBRIKAR AORTIC VALVE, INC.Inventors: Mano J. Thubrikar, Yogesh Darekar
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Patent number: 10575945Abstract: Described herein is a prosthetic valve device having an optimized valve component for durability and functionality of the collapsible leaflets. Specially designed commissures contribute to the optimization along with identified parameters. In other embodiments, the invention is a frame formed from a unique cutting pattern.Type: GrantFiled: January 23, 2018Date of Patent: March 3, 2020Assignee: THUBRIKAR AORTIC VALVE, INC.Inventors: Mano J. Thubrikar, Yogesh Darekar
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Publication number: 20180318060Abstract: A “dry” packaging in which a prosthetic heart valve is packaged within a container with hydrogel that can be provided in many forms. Certain embodiments include hydrogel that is preloaded with glycerol or the like. The hydrogel regulates the humidity within the container through a diffusion-driven mechanism if a gradient of humidity between the inside and the outside of the hydrogel exists. Humidity regulation is important to prevent the tissue of the valve structure from drying out. When the partially-hydrated hydrogel is present within container, which is saturated with air of a predefined humidity, the water molecules from the air will be absorbed by the hydrogel if the air humidity is high (i.e. when the thermodynamics favor hydrogel hydration) or vice versa. Various embodiments are configured to also house at least a portion of a delivery device for delivering the prosthetic heart valve.Type: ApplicationFiled: May 2, 2018Publication date: November 8, 2018Inventors: Raymond Ryan, David Clarke, Kshitija Garde, Ya Guo, Benjamin Wong, Yogesh Darekar, Luke Lehmann, Wei Wang, Laura McKinley, Paul Devereux, Joshua Dudney, Tracey Tien, Karl Olney