Patents by Inventor Evan T. Schwartz

Evan T. Schwartz 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: 11938021
    Abstract: A prosthetic heart valve has a frame including a plurality of strut members, an inflow end, and an outflow end. A leaflet structure is situated at least partially within the frame, and a covering is disposed around an exterior of the frame. The covering includes a cushioning layer, and a first strip member folded over an inflow circumferential edge portion of the cushioning layer to form a first protective portion. A second strip member is folded over an outflow circumferential edge portion of the cushioning layer to form a second protective portion. The first strip member and the second strip member are spaced apart from each other along a longitudinal axis of the prosthetic heart valve.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: March 26, 2024
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Sara Tzadok, Khen Perlmutter, Darshin S. Patel, Boaz Manash, Ajay Chadha, Waina Michelle Chu, Chambory Chhe, Evan T. Schwartz, Sandip Vasant Pawar
  • Publication number: 20230277312
    Abstract: A sealing frame surrounds a radially-outer surface portion of a valve frame of a prosthetic heart valve. Both the valve frame and the sealing frame are radially collapsible and expandable between respective compressed and expanded configurations. The sealing frame has a first axial end coupled to the valve frame at its inflow end, and a second axial end coupled to the valve frame at a location between its inflow and outflow ends. The sealing frame also has an intermediate portion between the first and second axial ends that projects radially outward when the valve and sealing frames are in their expanded configurations. The sealing frame displaces an outer skirt of the prosthetic heart valve radially outward and urges the outer skirt into contact with surrounding native tissue, thereby reducing or avoiding paravalvular leakage. In some examples, the sealing frame can be formed of a shape memory material.
    Type: Application
    Filed: May 11, 2023
    Publication date: September 7, 2023
    Inventors: Tram Ngoc Nguyen, Hannah Reed Bettencourt, Evan T. Schwartz
  • Publication number: 20230270540
    Abstract: A prosthetic heart valve can have one or more hermetic layers. The inner skirt and/or the outer skirt can comprise one or more hermetic layers, or the entire valve frame can be encapsulated within one or more hermetic layers. Each hermetic layer can be substantially nonporous or can have pores therein that are sized to discourage cellular ingrowth. The hermetic layer can prevent ingrowth of surrounding native tissue, thereby reducing pannus formation on the prosthetic leaflets. Alternatively or additionally, shapes of the leaflets of the valvular structure of the prosthetic valve and/or the coupling of the leaflets to the valve frame can be selected to avoid the incidence of stasis when implanted at a relatively low pressure gradient hemodynamic location. Such a prosthetic heart valve may reduce the risk of thrombosis.
    Type: Application
    Filed: May 9, 2023
    Publication date: August 31, 2023
    Inventors: Evan T. Schwartz, Darshin S. Patel, Jocelyn Chau, Hannah Reed Bettencourt
  • Publication number: 20230255755
    Abstract: This disclosure is directed to a docking device for a prosthetic heart valve. The docking device includes an inflow end, an outflow end, a support structure disposed between the inflow end and the outflow end, and an expandable sleeve. The support structure includes inflow and outflow sections that are configured to be positioned on inflow and outflow sides, respectively, of a native heart valve. The outflow section includes a first portion, a second portion, and a third portion, wherein the first portion is disposed closer to the inflow section than the second portion, and wherein the third portion is disposed between the first and second portions. The expandable sleeve may extend at least 100 degrees over the first portion of the outflow section of the support structure. Additionally, or alternatively, the first portion of the outflow section of the support structure may have a different geometry than the third portion.
    Type: Application
    Filed: April 27, 2023
    Publication date: August 17, 2023
    Inventor: Evan T. Schwartz
  • Publication number: 20220079750
    Abstract: A prosthetic heart valve has a frame including a plurality of strut members, an inflow end, and an outflow end. A leaflet structure is situated at least partially within the frame, and a covering is disposed around an exterior of the frame. The covering includes a cushioning layer, and a first strip member folded over an inflow circumferential edge portion of the cushioning layer to form a first protective portion. A second strip member is folded over an outflow circumferential edge portion of the cushioning layer to form a second protective portion. The first strip member and the second strip member are spaced apart from each other along a longitudinal axis of the prosthetic heart valve.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Inventors: Sara Tzadok (formerly Haivatov), Khen Perlmutter, Darshin S. Patel, Boaz Manash, Ajay Chadha, Waina Michelle Chu, Chambory Chhe, Evan T. Schwartz, Sandip Vasant Pawar
  • Publication number: 20220079749
    Abstract: Systems, assemblies, and methods for treating valve regurgitation and other valve problems are described. Prosthetic valves can have integrated coverings or flanges. Prosthetic valves can have a flange attached to the inflow end of the annular frame and designed to extend outwardly therefrom. Docking devices can be used to repair or reshape native heart valves and to secure prosthetic heart valves at a specific location and position relative to a native heart valve. Delivery systems can be used to deploy a docking device into the heart, including a lubricous sleeve in the delivery system. Packaging and storage systems suitable for the delivery systems are described.
    Type: Application
    Filed: November 24, 2021
    Publication date: March 17, 2022
    Inventors: Darshin S. Patel, Hannah Reed Bettencourt, Evan T. Schwartz, Sean Chow, Jocelyn Chau, Tri D. Tran, Alyssa Joy Gross, Yuanlong Du, Jason Seng-Che Lam, Alexander H. Cooper, Tram Ngoc Nguyen, Ngoc Huong Thi Nguyen, Kurt Kelly Reed, Corey Maurice Marshall
  • Patent number: 11185406
    Abstract: A prosthetic heart valve includes a frame having a plurality of strut members, an inflow end, and an outflow end. The prosthetic heart valve further includes a leaflet structure situated at least partially within the frame, and a covering disposed around the frame. The covering has a first layer and a second layer, wherein the second layer has a plush surface. The first layer is folded over a circumferential edge portion of the second layer to form a protective portion that extends beyond the strut members in a direction along a longitudinal axis of the prosthetic heart valve.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: November 30, 2021
    Assignee: Edwards Lifesciences Corporation
    Inventors: Sara Haivatov, Khen Perlmutter, Darshin S. Patel, Boaz Manash, Ajay Chadha, Waina Michelle Chu, Chambory Chhe, Evan T. Schwartz, Sandip Vasant Pawar
  • Publication number: 20210275303
    Abstract: A prosthetic heart valve includes a frame having an inflow end and an outflow end, and defining a longitudinal axis. The prosthetic heart valve further includes a leaflet structure situated at least partially within the frame, and a covering disposed around the frame. The covering includes a first woven portion extending circumferentially around the frame and including a plurality of texturized strands or yarns extending along the longitudinal axis of the frame. The covering further includes a second woven portion extending circumferentially around the frame and spaced apart from the first woven portion along the longitudinal axis of the frame. The texturized strands extend along the longitudinal axis of the frame from the first woven portion to the second woven portion and form a floating portion between the first woven portion and the second woven portion.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 9, 2021
    Inventors: Evan T. Schwartz, Sean Chow, Sandip Vasant Pawar, Darshin S. Patel, Chambory Chhe, Arpit Laddha, Ngoc Huong Thi Nguyen, Waina Michelle Chu, Yuanlong Du, Michael Bukin, Boaz Manash, Sara Tzadok (formerly Haivatov), Tamir S. Levi
  • Publication number: 20210228343
    Abstract: Embodiments are provided of an assembly having a prosthetic valve, the prosthetic valve having a radially expandable and compressible annular frame, and a crimping accessory device, and methods for using the assembly in compressing the prosthetic valve. The frame includes an outer surface and an inner surface. A leaflet assembly is supported inside the annular frame. The leaflet assembly includes a plurality of leaflets, each having an inner surface and an outer surface. The crimping accessory device has a plurality of axially-extending fingers. At least a first finger of the plurality of fingers is disposed between the outer surface of a first leaflet of the plurality of leaflets, and at least a second finger of the plurality of fingers is disposed radially-inwardly of the inner surface of the first leaflet.
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Applicant: Edwards Lifesciences Corporation
    Inventors: Taylor Jacob Scheinblum, Mindy Lee Ann Black, Tamir S. Levi, Evan T. Schwartz, Waina Michelle Chu, Linda Thai, Hanoch Cohen-Tzemach, Michael Bukin
  • Patent number: 11013600
    Abstract: A prosthetic heart valve includes a frame having an inflow end and an outflow end, and defining a longitudinal axis. The prosthetic heart valve further includes a leaflet structure situated at least partially within the frame, and a covering disposed around the frame. The covering includes a first woven portion extending circumferentially around the frame and including a plurality of texturized strands or yarns extending along the longitudinal axis of the frame. The covering further includes a second woven portion extending circumferentially around the frame and spaced apart from the first woven portion along the longitudinal axis of the frame. The texturized strands extend along the longitudinal axis of the frame from the first woven portion to the second woven portion and form a floating portion between the first woven portion and the second woven portion.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: May 25, 2021
    Assignee: Edwards Lifesciences Corporation
    Inventors: Evan T. Schwartz, Sean Chow, Sandip Vasant Pawar, Darshin S. Patel, Chambory Chhe, Arpit Laddha, Ngoc Huong Thi Nguyen, Waina Michelle Chu, Yuanlong Du, Michael Bukin, Boaz Manash, Sara Haivatov, Tamir S. Levi
  • Patent number: 10973631
    Abstract: Embodiments are provided of an assembly having a prosthetic valve, the prosthetic valve having a radially expandable and compressible annular frame, and a crimping accessory device, and methods for using the assembly in compressing the prosthetic valve. The frame includes an outer surface and an inner surface. A leaflet assembly is supported inside the annular frame. The leaflet assembly includes a plurality of leaflets, each having an inner surface and an outer surface. The crimping accessory device has a plurality of axially-extending fingers. At least a first finger of the plurality of fingers is disposed between the outer surface of a first leaflet of the plurality of leaflets, and at least a second finger of the plurality of fingers is disposed radially-inwardly of the inner surface of the first leaflet.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: April 13, 2021
    Assignee: Edwards Lifesciences Corporation
    Inventors: Taylor Jacob Scheinblum, Mindy Lee Ann Black, Tamir S. Levi, Evan T. Schwartz, Waina Michelle Chu, Linda Thai, Hanoch Cohen-Tzemach, Michael Bukin
  • Publication number: 20190192296
    Abstract: A prosthetic heart valve includes a frame having an inflow end and an outflow end, and defining a longitudinal axis. The prosthetic heart valve further includes a leaflet structure situated at least partially within the frame, and a covering disposed around the frame. The covering includes a first woven portion extending circumferentially around the frame and including a plurality of texturized strands or yarns extending along the longitudinal axis of the frame. The covering further includes a second woven portion extending circumferentially around the frame and spaced apart from the first woven portion along the longitudinal axis of the frame. The texturized strands extend along the longitudinal axis of the frame from the first woven portion to the second woven portion and form a floating portion between the first woven portion and the second woven portion.
    Type: Application
    Filed: January 21, 2019
    Publication date: June 27, 2019
    Inventors: Evan T. Schwartz, Sean Chow, Sandip Vasant Pawar, Darshin S. Patel, Chambory Chhe, Arpit Laddha, Ngoc Huong Thi Nguyen, Waina Michelle Chu, Yuanlong Du, Michael Bukin, Boaz Manash, Sara Haivatov, Tamir S. Levi
  • Publication number: 20180206982
    Abstract: A prosthetic heart valve includes a frame having a plurality of strut members, an inflow end, and an outflow end. The prosthetic heart valve further includes a leaflet structure situated at least partially within the frame, and a covering disposed around the frame. The covering has a first layer and a second layer, wherein the second layer has a plush surface. The first layer is folded over a circumferential edge portion of the second layer to form a protective portion that extends beyond the strut members in a direction along a longitudinal axis of the prosthetic heart valve.
    Type: Application
    Filed: January 19, 2018
    Publication date: July 26, 2018
    Inventors: Sara Haivatov, Khen Perlmutter, Darshin S. Patel, Boaz Manash, Ajay Chadha, Waina Michelle Chu, Chambory Chhe, Evan T. Schwartz, Sandip Vasant Pawar
  • Publication number: 20180133000
    Abstract: Embodiments are provided of an assembly having a prosthetic valve, the prosthetic valve having a radially expandable and compressible annular frame, and a crimping accessory device, and methods for using the assembly in compressing the prosthetic valve. The frame includes an outer surface and an inner surface. A leaflet assembly is supported inside the annular frame. The leaflet assembly includes a plurality of leaflets, each having an inner surface and an outer surface. The crimping accessory device has a plurality of axially-extending fingers. At least a first finger of the plurality of fingers is disposed between the outer surface of a first leaflet of the plurality of leaflets, and at least a second finger of the plurality of fingers is disposed radially-inwardly of the inner surface of the first leaflet.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 17, 2018
    Inventors: Taylor Jacob Scheinblum, Mindy Lee Ann Black, Tamir S. Levi, Evan T. Schwartz, Waina Michelle Chu, Linda Thai, Hanoch Cohen-Tzemach, Michael Bukin