Patents by Inventor Waina Michelle Chu
Waina Michelle Chu 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: 11938021Abstract: 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: GrantFiled: November 23, 2021Date of Patent: March 26, 2024Assignee: EDWARDS LIFESCIENCES CORPORATIONInventors: Sara Tzadok, Khen Perlmutter, Darshin S. Patel, Boaz Manash, Ajay Chadha, Waina Michelle Chu, Chambory Chhe, Evan T. Schwartz, Sandip Vasant Pawar
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Publication number: 20240065836Abstract: Components for valve treatment systems are disclosed. Valve treatment systems can include a delivery system for an implantable device. The delivery system can include one or more of clasp control components slidably disposed on a catheter handle, a control element for opening and closing the implantable device, a catheter assembly with features to reduce friction with another catheter assembly, grips for attaching catheter assemblies to clamps, catheter assemblies with features that stiffen or provide variable stiffness, and catheter assemblies with one or more steering control lumens incorporated into a reinforcement layer.Type: ApplicationFiled: October 27, 2023Publication date: February 29, 2024Inventors: Michael J. Popp, Nicolas Schleiger, Kevin Gantz, George Lee Matlock, Aric Daniel Stone, Eric Robert Dixon, Charles Henry Bloodworth, IV, Gregory Scott Tyler, II, Asher L. Metchik, Robert Bowes, Waina Michelle Chu, Zachary James Zira, Steven Park
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Publication number: 20240033079Abstract: Disclosed herein are implantable medical devices comprising a textile material comprising a first material and a second material having different stretchability and flexibility, where the first and the second materials are at least partially superposed and coupled to each other. The medical devices of the current disclosure can be implantable prosthetic valves. The valves of the present disclosure provide for a reduced crimped profile and improve PVL sealing. In addition, disclosed herein are methods of making the implantable medical devices.Type: ApplicationFiled: October 6, 2023Publication date: February 1, 2024Inventors: Shahram Zamani, Waina Michelle Chu, Ziv Yohanan, Dikla Kersh
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Publication number: 20240024067Abstract: A stabilizing base includes one or more legs and a platform attached to the one or more legs. One or more of a height of the platform relative to an operating table, a position of the platform along a width of the operating table, a position of the platform along a length of the operating table, and an angular position of the platform relative to the operating table can be adjusted.Type: ApplicationFiled: September 28, 2023Publication date: January 25, 2024Inventors: Robert Bowes, Sergio Delgado, Ismail Thazhapilavil, Mindy Lee Ann Black, Waina Michelle Chu, Michael J. Popp, Hsingching C. Hsu, Raffi Sempad Pinedjian, Scot Herbst, Jeffrey William Servaites, Carl Hermann James Poppe
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Patent number: 11872125Abstract: A system can include a delivery catheter comprising a balloon and an implantable prosthetic heart valve. The prosthetic valve can have a plastically expandable and compressible unitary frame comprising first, second, and third rows of angled struts that define two circumferentially extending rows of diamond-shaped cells that extend continuously around the frame, and a valvular structure comprising a plurality of leaflets. A cusp edge portion of each leaflet is connected to the frame by a skirt that is connected to and disposed between the frame and the cusp edge portions of the leaflets, the skirt being connected to consecutive struts in the first, second, and third rows of struts with sutures. The compressed prosthetic heart valve can be mounted around the balloon and radially expanded to the expanded configuration with the balloon inside a patient's body.Type: GrantFiled: April 18, 2022Date of Patent: January 16, 2024Assignee: EDWARDS LIFESCIENCES CORPORATIONInventors: Nikolai Gurovich, Michael Bukin, Elena Sherman, Tamir S. Levi, Ziv Yohanan, Gil Senesh, Dikla Kersh, Alexey Tsypenyuk, Waina Michelle Chu, Alexander Barash
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Publication number: 20230363911Abstract: An implantable device is configured to be positioned within a native heart valve to allow the native heart valve to form a more effective seal. The implantable device includes a cover. The cover can be attached to one or more sleeves, can have a portion that has a lower coefficient of friction, and/or can have separate pieces that cover different portions of the implantable device.Type: ApplicationFiled: July 14, 2023Publication date: November 16, 2023Inventors: Florian Georg Deuschl, Chris J. Okos, Waina Michelle Chu, Jian Lin Phan, Lauren R. Freschauf, Wen Yan Chen
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Patent number: 11806234Abstract: A system can include a delivery catheter comprising a balloon and an implantable prosthetic heart valve. The prosthetic valve can have a plastically expandable and compressible unitary frame comprising a plurality of circumferentially extending rows of angled struts, including first, second, and third rows of angled struts forming rows of diamond-shaped cells, and a valvular structure comprising a plurality of leaflets. A cusp edge portion of each leaflet is connected to the frame by a skirt that is disposed between the frame and the cusp edge portions, the skirt being sutured to selected struts of the frame along diagonal paths extending from an inflow end portion toward an outflow end portion. Each diagonal path along which the skirt is sutured to the frame extends along the first, second, and third rows of angled struts.Type: GrantFiled: April 13, 2022Date of Patent: November 7, 2023Assignee: EDWARDS LIFESCIENCES CORPORATIONInventors: Nikolai Gurovich, Michael Bukin, Elena Sherman, Tamir S. Levi, Ziv Yohanan, Gil Senesh, Dikla Kersh, Alexey Tsypenyuk, Waina Michelle Chu, Alexander Barash
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Publication number: 20230277313Abstract: A prosthetic heart valve can include a radially expandable and compressible frame having an inflow end, an outflow end, and a plurality of struts. The prosthetic valve can further include a valvular structure comprising a plurality of leaflets, each leaflet comprising a coaptation edge portion and a cusp edge portion. The cusp edge portion of each leaflet can be folded toward the outflow end of the frame along a bending axis and a reinforcing member extends along an outflow surface of the cusp edge portion along the bending axis. The prosthetic heart valve can include a plurality of connecting skirts, each disposed between the cusp edge portion of an adjacent leaflet and the frame. First stitching secures the reinforcing member and the connecting skirts to the cusp edge portions and second stitching secures the connecting skirts to selected struts of the frame.Type: ApplicationFiled: May 12, 2023Publication date: September 7, 2023Inventors: Nikolai Gurovich, Michael Bukin, Elena Sherman, Tamir S. Levi, Ziv Yohanan, Gil Senesh, Dikla Kersh, Alexey Tsypenyuk, Waina Michelle Chu, Alexander Barash
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Publication number: 20220241071Abstract: A system can include a delivery catheter comprising a balloon and an implantable prosthetic heart valve. The prosthetic valve can have a plastically expandable and compressible unitary frame comprising first, second, and third rows of angled struts that define two circumferentially extending rows of diamond-shaped cells that extend continuously around the frame, and a valvular structure comprising a plurality of leaflets. A cusp edge portion of each leaflet is connected to the frame by a skirt that is connected to and disposed between the frame and the cusp edge portions of the leaflets, the skirt being connected to consecutive struts in the first, second, and third rows of struts with sutures. The compressed prosthetic heart valve can be mounted around the balloon and radially expanded to the expanded configuration with the balloon inside a patient's body.Type: ApplicationFiled: April 18, 2022Publication date: August 4, 2022Inventors: Nikolay Gurovich, Michael Bukin, Elena Sherman, Tamir S. Levi, Ziv Yohanan, Gil Senesh, Dikla Kersh, Alexey Tsypenyuk, Waina Michelle Chu, Alexander Barash
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Publication number: 20220241070Abstract: A system can include a delivery catheter comprising a balloon and an implantable prosthetic heart valve. The prosthetic valve can have a plastically expandable and compressible unitary frame comprising a plurality of circumferentially extending rows of angled struts, including first, second, and third rows of angled struts forming rows of diamond-shaped cells, and a valvular structure comprising a plurality of leaflets. A cusp edge portion of each leaflet is connected to the frame by a skirt that is disposed between the frame and the cusp edge portions, the skirt being sutured to selected struts of the frame along diagonal paths extending from an inflow end portion toward an outflow end portion. Each diagonal path along which the skirt is sutured to the frame extends along the first, second, and third rows of angled struts.Type: ApplicationFiled: April 13, 2022Publication date: August 4, 2022Inventors: Nikolay Gurovich, Michael Bukin, Elena Sherman, Tamir S. Levi, Ziv Yohanan, Gil Senesh, Dikla Kersh, Alexey Tsypenyuk, Waina Michelle Chu, Alexander Barash
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Publication number: 20220079750Abstract: 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: ApplicationFiled: November 23, 2021Publication date: March 17, 2022Inventors: Sara Tzadok (formerly Haivatov), Khen Perlmutter, Darshin S. Patel, Boaz Manash, Ajay Chadha, Waina Michelle Chu, Chambory Chhe, Evan T. Schwartz, Sandip Vasant Pawar
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Patent number: 11185406Abstract: 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: GrantFiled: January 19, 2018Date of Patent: November 30, 2021Assignee: Edwards Lifesciences CorporationInventors: Sara Haivatov, Khen Perlmutter, Darshin S. Patel, Boaz Manash, Ajay Chadha, Waina Michelle Chu, Chambory Chhe, Evan T. Schwartz, Sandip Vasant Pawar
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Publication number: 20210275303Abstract: 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: ApplicationFiled: May 21, 2021Publication date: September 9, 2021Inventors: 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
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Publication number: 20210259832Abstract: A prosthetic heart valve can include a radially expandable and compressible frame having an inflow end portion and an outflow end portion, the frame comprising a plurality of struts defining openings between them. The prosthetic valve can further include a valvular structure comprising a plurality of leaflets, each leaflet comprising a main body, opposing tabs on opposite sides of the main body, a coaptation edge portion, and a cusp edge portion. Each tab can be paired with an adjacent tab of an adjacent leaflet to form a plurality of commissures that are fixed relative to the frame, and each leaflet can have opposing edge portions between the opposing tabs and the cusp edge portion that are unattached to the frame, each unattached edge portion defining a gap that extends radially into the main body of the leaflet.Type: ApplicationFiled: May 11, 2021Publication date: August 26, 2021Applicant: Edwards Lifesciences CorporationInventors: Nikolay Gurovich, Michael Bukin, Elena Sherman, Tamir S. Levi, Ziv Yohanan, Gil Senesh, Dikla Kersh, Alexey Tsypenyuk, Waina Michelle Chu, Alexander Barash
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Patent number: 11096781Abstract: A prosthetic heart valve can include a radially collapsible and expandable annular frame having a plurality of struts defining openings. The prosthetic heart valve can further include a plurality of leaflets that regulate the flow of blood through the frame. The prosthetic heart valve can also include a sealing member mounted on the frame and having an inner layer and an outer layer. At least the outer layer is mounted on the outside of the frame, and the inner layer covers at least the openings in the frame between adjacent cusp portions of adjacent leaflets and the inner layer does not cover one or more openings in the frame at locations facing the outflow surfaces of the leaflets to permit retrograde blood to flow through the one or more uncovered openings in the frame and into space between the outer layer and the frame.Type: GrantFiled: July 31, 2017Date of Patent: August 24, 2021Assignee: Edwards Lifesciences CorporationInventors: Nikolay Gurovich, Michael Bukin, Elena Sherman, Tamir S. Levi, Ziv Yohanan, Gil Senesh, Dikla Kersh, Alexey M. Tsypenyuk, Waina Michelle Chu, Alexander Barash
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Publication number: 20210228343Abstract: 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: ApplicationFiled: April 12, 2021Publication date: July 29, 2021Applicant: Edwards Lifesciences CorporationInventors: Taylor Jacob Scheinblum, Mindy Lee Ann Black, Tamir S. Levi, Evan T. Schwartz, Waina Michelle Chu, Linda Thai, Hanoch Cohen-Tzemach, Michael Bukin
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Patent number: 11013600Abstract: 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: GrantFiled: January 21, 2019Date of Patent: May 25, 2021Assignee: Edwards Lifesciences CorporationInventors: 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
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Patent number: 10973631Abstract: 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: GrantFiled: November 10, 2017Date of Patent: April 13, 2021Assignee: Edwards Lifesciences CorporationInventors: Taylor Jacob Scheinblum, Mindy Lee Ann Black, Tamir S. Levi, Evan T. Schwartz, Waina Michelle Chu, Linda Thai, Hanoch Cohen-Tzemach, Michael Bukin
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Publication number: 20190192296Abstract: 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: ApplicationFiled: January 21, 2019Publication date: June 27, 2019Inventors: 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
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Publication number: 20180206982Abstract: 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: ApplicationFiled: January 19, 2018Publication date: July 26, 2018Inventors: Sara Haivatov, Khen Perlmutter, Darshin S. Patel, Boaz Manash, Ajay Chadha, Waina Michelle Chu, Chambory Chhe, Evan T. Schwartz, Sandip Vasant Pawar