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公开(公告)号：US12121676B2
公开(公告)日：2024-10-22
申请号：US17026644
申请日：2020-09-21
发明人： Tri D. Tran , Sean Chow , Ronaldo C. Cayabyab
CPC分类号： A61M25/0147 , A61F2/2436 , A61M25/0071 , A61M25/0136 , A61F2/2427 , A61M2025/0161
摘要： In one representative embodiment, a steerable catheter device comprises a shaft comprising a proximal portion and a distal portion, and first and second pull wires having respective proximal portions and respective distal portions. The proximal portions of the first and second pull wires extend through the proximal portion of the shaft in close proximity to each other. The distal portions of the first and second pull wires extend through the distal portion of the shaft in close proximity to each other over a first distance defining a primary flexing section, diverge away from each other over a second distance, and then extend parallel to each other at angularly spaced locations over a third distance defining a secondary flexing section.
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公开(公告)号：US11864997B2
公开(公告)日：2024-01-09
申请号：US17111148
申请日：2020-12-03
发明人： Tri D. Tran , Ronaldo C. Cayabyab , David J. Evans , Sean Chow , Christopher Chia , Tamir S. Levi
CPC分类号： A61F2/2433 , A61F2/958 , A61F2/484 , A61F2/9517 , A61F2002/9586 , A61F2250/0003 , A61F2250/0021 , A61M25/1002 , A61M25/10184 , A61M2025/1013 , A61M2025/1084
摘要： A delivery apparatus for a prosthetic heart valve includes a shaft, an inner balloon, and an outer balloon. The shaft has a lumen extending from a proximal end portion to a distal end portion and a plurality of openings formed in the distal end portion. The shaft is configured such that a fluid can flow through the lumen and the openings. The inner balloon has end portions and a center portion disposed between the end portions. The inner balloon is mounted on the distal end portion of the shaft and is in fluid communication with the openings of the shaft. When the inner balloon is inflated with the fluid, the end portions expand farther radially outwardly than the center portion. The outer balloon is mounted to the shaft and disposed over the inner balloon. The outer balloon is configured to fully expand after the inner balloon at least partially expands.
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公开(公告)号：US20210001090A1
公开(公告)日：2021-01-07
申请号：US17026644
申请日：2020-09-21
发明人： Tri D. Tran , Sean Chow , Ronaldo C. Cayabyab
摘要： In one representative embodiment, a steerable catheter device comprises a shaft comprising a proximal portion and a distal portion, and first and second pull wires having respective proximal portions and respective distal portions. The proximal portions of the first and second pull wires extend through the proximal portion of the shaft in close proximity to each other. The distal portions of the first and second pull wires extend through the distal portion of the shaft in close proximity to each other over a first distance defining a primary flexing section, diverge away from each other over a second distance, and then extend parallel to each other at angularly spaced locations over a third distance defining a secondary flexing section.
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公开(公告)号：US10441419B2
公开(公告)日：2019-10-15
申请号：US16197245
申请日：2018-11-20
发明人： Thanh Huy Le , Tri D. Tran , Ronaldo C. Cayabyab , David M. Taylor , Antonio O. Vidal , Robert Bowes
摘要： A method of delivery a prosthetic heart valve includes inserting a delivery apparatus and a prosthetic heart valve into a patient's vasculature. The delivery apparatus includes a steerable guide catheter, a balloon catheter, and a flex indicator. The balloon catheter extends coaxially through the guide catheter, the prosthetic heart valve is mounted on a distal end portion of the balloon catheter, and the flex indicator is movably coupled to a handle of the guide catheter. The method further includes adjusting flexion of a steerable section of the guide catheter to position the prosthetic heart valve. The flex indicator moves relative to the handle of the guide catheter as the flexion of the steerable section is adjusted, and the handle comprises one or more visual indicators adjacent the flex indicator to provide visual indication of an amount of flexion of the steerable section of the guide catheter.
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公开(公告)号：US10278815B2
公开(公告)日：2019-05-07
申请号：US16017465
申请日：2018-06-25
发明人： Philippe Marchand , David M. Taylor , Robert Milich , David J. Evans , Christopher Chia , Ronaldo C. Cayabyab , Robert Bowes
摘要： An assembly includes a prosthetic heart valve and a delivery apparatus for implanting the prosthetic heart valve within the native aortic valve of a patient. The prosthetic heart valve has a radially compressible and expandable metallic stent and a flexible valvular structure mounted within the stent. The delivery apparatus has a handle, a first shaft having a proximal end portion and a distal end portion, a second shaft extending co-axially through the first shaft and having a proximal end portion and a distal end portion, the proximal end portions of the first and second shafts extending distally from the handle, a valve cover coupled to the distal end portion of the first shaft, and a nose piece coupled to the distal end portion of the second shaft.
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公开(公告)号：US20240108467A1
公开(公告)日：2024-04-04
申请号：US18539968
申请日：2023-12-14
发明人： Philippe Marchand , David M. Taylor , Robert Milich , David J. Evans , Christopher Chia , Ronaldo C. Cayabyab , Robert Bowes
CPC分类号： A61F2/2433 , A61F2/2436 , A61M25/0136 , A61M25/0662 , A61F2/958
摘要： Delivery apparatus and methods for delivering a medical device into a patient's vasculature are disclosed. In some examples, a method includes inserting, into a patient, a distal end portion of a delivery apparatus including a radially compressed prosthetic valve mounted around a balloon, advancing the distal end through the patient's vasculature, and inflating the balloon to radially expand the prosthetic valve at a native heart valve. The delivery apparatus includes a handle, a first shaft and a second shaft extending from the handle, and a locking mechanism to prevent axial movement of the second shaft relative to first shaft. The second shaft extends coaxially through the first shaft and includes the balloon, the radially compressed prosthetic valve, and one or more radiopaque markers at a distal end portion. The first shaft includes an end piece covering a proximal portion of the balloon during the advancing of the delivery apparatus.
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公开(公告)号：US20240099839A1
公开(公告)日：2024-03-28
申请号：US18536042
申请日：2023-12-11
发明人： Tri D. Tran , Ronaldo C. Cayabyab , David J. Evans , Sean Chow , Christopher Chia , Tamir S. Levi
CPC分类号： A61F2/2433 , A61F2/958 , A61M25/10184
摘要： A delivery apparatus for a prosthetic heart valve includes a shaft, an inner balloon, and an outer balloon. The shaft has a lumen extending from a proximal end portion to a distal end portion and a plurality of openings formed in the distal end portion. The shaft is configured such that a fluid can flow through the lumen and the openings. The inner balloon has end portions and a center portion disposed between the end portions. The inner balloon is mounted on the distal end portion of the shaft and is in fluid communication with the openings of the shaft. When the inner balloon is inflated with the fluid, the end portions expand farther radially outwardly than the center portion. The outer balloon is mounted to the shaft and disposed over the inner balloon. The outer balloon is configured to fully expand after the inner balloon at least partially expands.
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公开(公告)号：US11717405B2
公开(公告)日：2023-08-08
申请号：US17985009
申请日：2022-11-10
发明人： Philippe Marchand , David M. Taylor , Robert Milich , David J. Evans , Christopher Chia , Ronaldo C. Cayabyab , Robert Bowes
CPC分类号： A61F2/2433 , A61F2/2436 , A61M25/0136 , A61M25/0662 , A61F2/958 , A61F2/9517 , A61M25/005 , A61M25/0045 , A61M25/0147 , A61M39/0613
摘要： A method for replacing a stenotic native aortic valve of a patient can include inserting a delivery apparatus into a femoral artery of the patient, the delivery apparatus having a first shaft extending from the handle, a second shaft disposed around the first shaft, a third shaft extending through the second shaft, and a valve cover coupled to the first shaft. The valve cover can be in a first state housing an entirety of a prosthetic heart valve and retaining the prosthetic heart valve in a radially compressed state during the act of inserting. The method can further include advancing the delivery apparatus through the aorta of the patient to position the valve cover and the prosthetic heart valve within the native aortic valve, and moving the valve cover longitudinally from the first state to a second state in which the entirety of the prosthetic heart valve is uncovered.
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公开(公告)号：US20230157815A1
公开(公告)日：2023-05-25
申请号：US18153182
申请日：2023-01-11
IPC分类号： A61F2/24
CPC分类号： A61F2/2409 , A61F2/2436 , A61F2250/0063 , A61M25/0054
摘要： An anchoring device that can be positioned within a native valve, such as the native mitral valve, to secure a replacement prosthetic valve in place. The anchoring device can comprise a docking station formed of an elastic tube-like member defining a generally coiled shape. The docking station can have an atrial or stabilization turn, a leading or encircling turn, and a central region. In many embodiments, the docking device possess a plurality of cuts on opposing sides of the tube-like member to allow biasing of the member.
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公开(公告)号：US20210085458A1
公开(公告)日：2021-03-25
申请号：US17111148
申请日：2020-12-03
发明人： Tri D. Tran , Ronaldo C. Cayabyab , David J. Evans , Sean Chow , Christopher Chia , Tamir S. Levi
摘要： A delivery apparatus for a prosthetic heart valve includes a shaft, an inner balloon, and an outer balloon. The shaft has a lumen extending from a proximal end portion to a distal end portion and a plurality of openings formed in the distal end portion. The shaft is configured such that a fluid can flow through the lumen and the openings. The inner balloon has end portions and a center portion disposed between the end portions. The inner balloon is mounted on the distal end portion of the shaft and is in fluid communication with the openings of the shaft. When the inner balloon is inflated with the fluid, the end portions expand farther radially outwardly than the center portion. The outer balloon is mounted to the shaft and disposed over the inner balloon. The outer balloon is configured to fully expand after the inner balloon at least partially expands.
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