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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：US20200237504A1
公开(公告)日：2020-07-30
申请号：US16849243
申请日：2020-04-15
发明人： Henry Bourang , Thanh Huy Le , David M. Taylor , Sam Sok , Mario Iobbi , David J. Evans , Rajesh A. Khanna
IPC分类号： A61F2/24
摘要： A valve catheter is advanced through a patient's vasculature while a prosthetic heart valve is attached to flexible extensions along a distal end thereof. The valve catheter is advanced through a tubular sleeve for exposing the prosthetic heart valve and allowing the prosthetic heart valve to self-expand while the extensions remain attached to the prosthetic heart valve. A release mechanism on a handle portion is actuated for releasing the prosthetic heart valve from the extensions, thereby implanting the prosthetic heart in a native heart valve. If the operator is not satisfied with the initial expansion, the prosthetic heart valve may be reoriented before release from the extensions by retracting the prosthetic heart valve back into the tubular sleeve, adjusting the orientation of the prosthetic heart valve and then re-advancing the valve catheter from the tubular sleeve for allowing the prosthetic heart valve to re-self-expand at a more desirable location.
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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：US20140058502A1
公开(公告)日：2014-02-27
申请号：US14066259
申请日：2013-10-29
发明人： Philippe Marchand , David M. Taylor , Robert Milich , David J. Evans , Christopher Chia , Ronaldo Cayabyab , Robert Bowes
IPC分类号： A61F2/24
CPC分类号： A61F2/2433 , A61F2/2436 , A61F2/958 , A61F2002/9517 , A61M25/0045 , A61M25/005 , A61M25/0136 , A61M25/0662 , A61M39/0613
摘要： Embodiments of the present disclosure provide a delivery apparatus for delivering a prosthetic heart valve to a native valve site via the human vasculature without the need for a separate introducer sheath. The delivery apparatus is particularly well-suited for advancing a prosthetic valve through the aorta (i.e., in a retrograde approach) for replacing a stenotic aortic valve.
摘要翻译： 本公开的实施例提供了一种用于经由人类脉管系统将假体心脏瓣膜递送至自然瓣膜部位而不需要单独导引鞘的输送装置。 输送装置特别适用于通过主动脉推进人造瓣膜（即逆行方法），以更换狭窄的主动脉瓣。
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公开(公告)号：US11883285B2
公开(公告)日：2024-01-30
申请号：US17003836
申请日：2020-08-26
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： Embodiments of the present disclosure provide an introducer device and methods for introducing a medical device into a patient's vasculature. In one embodiment, a method of using an introducer device including a housing, a hemostatic seal mounted within the housing, and a tube extending into the housing and movable longitudinally relative to the hemostatic seal between a proximal position and a distal position, includes moving the tube to the distal position such that the distal end of the tube extends through the hemostatic seal. The method further includes inserting a distal end portion of the medical device through the tube and into the patient's vasculature without contacting the hemostatic seal.
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公开(公告)号：US20230074408A1
公开(公告)日：2023-03-09
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
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：US20210030540A1
公开(公告)日：2021-02-04
申请号：US17073076
申请日：2020-10-16
发明人： Philippe Marchand , David M. Taylor , Robert Milich , David J. Evans , Christopher Chia , Ronaldo C. Cayabyab , Robert Bowes
摘要： Embodiments of the present disclosure provide an introducer device and method for introducing a delivery apparatus into a patient's vasculature. Disclosed methods can include positioning a sleeve of an introducer sheath in a blood vessel of a patient, the sleeve having a lattice layer with a lumen therethrough, inserting a distal end portion of the delivery apparatus and a prosthetic heart valve into the lumen, and advancing the distal end portion of the delivery apparatus through the lumen from the proximal end to the distal end. The method can then include expanding the lumen from a first diameter smaller to a second diameter at least equal to the diameter of the prosthetic heart valve to allow passage of the prosthetic heart valve through the lumen, and returning the lumen of the sleeve to a diameter smaller than the second diameter after advancing the prosthetic heart valve through the lumen.
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公开(公告)号：US20200375735A1
公开(公告)日：2020-12-03
申请号：US16994945
申请日：2020-08-17
发明人： Philippe Marchand , David M. Taylor , Robert Milich , David J. Evans , Christopher Chia , Ronaldo C. Cayabyab , Robert Bowes
摘要： Embodiments of the present disclosure provide a delivery apparatus for a prosthetic heart valve. Disclosed steerable catheters can include a handle, a steerable shaft extending from the handle, and a pull wire. The shaft can include a main lumen, an inner polymeric layer surrounding the main lumen, a braided layer surrounding the inner polymeric layer, and an outer polymeric layer surrounding the braided layer, the outer polymeric layer defining a pull wire lumen. The pull wire can extend from the handle and through the pull wire lumen and can have a distal end portion coupled to a distal end portion of the shaft.
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公开(公告)号：US20180125643A1
公开(公告)日：2018-05-10
申请号：US15833853
申请日：2017-12-06
发明人： Henry Bourang , Thanh Huy Le , David M. Taylor , Sam Sok , Mario M. Gabriel Iobbi , David J. Evans , Rajesh A. Khanna
CPC分类号： A61F2/243 , A61F2/2418 , A61F2/2433 , A61F2/2436 , A61F2/2439 , A61F2002/9517 , A61F2002/9583
摘要： An assembly for treating a native valve in a human heart includes a prosthetic heart valve having an expandable frame and a valvular structure. The assembly also includes a tubular sleeve and a valve catheter disposed within the sleeve. A plurality of metal extension arms are coupled to the valve catheter for holding the prosthetic heart valve. The extension arms are configured to radially expand with the prosthetic heart valve during expansion of the prosthetic heart valve at a treatment site. A plurality of metal rods extend distally from the valve catheter. The rods are axially movable relative to the extension arms. A plurality of release members are provided for releasing the prosthetic heart valve from the extension arms upon movement of the metal rods.
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公开(公告)号：US09795477B2
公开(公告)日：2017-10-24
申请号：US15136735
申请日：2016-04-22
CPC分类号： A61F2/2433 , A61F2/958 , A61F2002/485 , A61F2002/9517 , A61F2002/9586 , A61F2250/0003 , A61F2250/0021 , A61M25/1002 , A61M25/10184 , A61M2025/1013 , A61M2025/1084
摘要： Described herein are systems and methods from delivering prosthetic devices, such as prosthetic heart valves, through the body and into the heart for implantation therein. The prosthetic devices delivered with the delivery systems disclosed herein are, for example, radially expandable from a radially compressed state mounted on the delivery system to a radially expanded state for implantation using an inflatable balloon of the delivery system. Exemplary delivery routes through the body and into the heart include transfemoral routes, transapical routes, and transaortic routes, among others.
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