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公开(公告)号：US20190231520A1
公开(公告)日：2019-08-01
申请号：US16378307
申请日：2019-04-08
发明人： John J. Desrosiers , Amanda Kristine Anderson White , Michael R. Bialas , Gilbert Madrid , Michael J. Popp , Thanh V. Nguyen , Jun Liu , Asher L. Metchik , Darshin S. Patel
IPC分类号： A61F2/24
CPC分类号： A61F2/243 , A61F2/2418 , A61F2/2436 , A61F2220/0033
摘要： One method of implanting a prosthetic valve includes advancing the valve into a patient with a delivery apparatus. The valve includes apices circumferentially-spaced apart relative to each other. At least some of the apices include first apertures. The delivery apparatus includes release arms and a sheath. The release arms include second apertures for receiving the apices. At least one of the second apertures of the release arms has a different length than another one of the second apertures. The method also includes positioning the valve at a location, retracting a sheath of the delivery apparatus relative to the valve, allowing the valve to self-expand from a radially compressed state to a radially expanded state, and while the valve is coupled to the delivery apparatus, pivoting the valve relative about the release arms such that an axis of the valve is tilted relative to an axis of the delivery apparatus.
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公开(公告)号：US20170231765A1
公开(公告)日：2017-08-17
申请号：US15351823
申请日：2016-11-15
发明人： John J. Desrosiers , Amanda K. Anderson , Michael R. Bialas , Gilbert Madrid , Michael J. Popp , Thanh V. Nguyen , Jun Liu , Asher L. Metchik , Darshin S. Patel
IPC分类号： A61F2/24
CPC分类号： A61F2/2439 , A61F2/2418 , A61F2/2427 , A61F2/2436 , A61F2/966 , A61F2002/9505 , A61F2002/9665 , A61F2220/0033 , A61F2220/0083 , A61F2250/0006
摘要： A prosthetic implant delivery assembly can include a prosthetic implant and an elongate catheter. The prosthetic implant can include an expandable stent portion having a longitudinal axis extending from a first end portion of the stent to a second end portion of the stent. The catheter can include a longitudinal axis extending from a proximal end portion of the catheter to a distal end portion of the catheter and a plurality of arms extending axially from the distal end of the catheter. The first end portion of the stent can be releasably and pivotably coupled to at least one the arms of the catheter such that the stent can pivot about the at least one of the arms so that the longitudinal axis of the stent is tilted relative to the longitudinal axis of the catheter.
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公开(公告)号：US20170128197A1
公开(公告)日：2017-05-11
申请号：US15346355
申请日：2016-11-08
IPC分类号： A61F2/24
CPC分类号： A61F2/243 , A61F2/2412 , A61F2/2418 , A61F2/2427 , A61F2/2439
摘要： In a particular embodiment, the present disclosure provides a delivery apparatus for delivering a medical device. The delivery apparatus includes an elongated component with an engagement portion and a disengagement portion. Rotating the elongated component in a first rotational direction moves the travelling component along the engagement portion in a first axial direction. When the travelling component is located within the disengagement portion, continued rotation of the elongated component in the first rotational direction does not cause further movement of the travelling component in the first axial direction. A biasing member is located proximate the disengagement portion and urges the travelling component to reengage the engagement potion. The delivery apparatus can reduce or prevent damage to the delivery apparatus, or a patient with whom the delivery apparatus is used, by reducing or eliminating torque transfer from the travelling component to an end of the elongated component.
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34.发明公开公开(公告)号：US20240307172A1
公开(公告)日：2024-09-19
申请号：US18434642
申请日：2024-02-06
发明人： Michael R. Bialas , Kristen Hicks , Michael C. Murad , Gil Senesh , Quang Ngoc Vu , Gonzalo German Angelico , Carla Susana Cerqueira , Victoria Mariko Low , Andrea Fernandez , Jeanette Jasmine Corona Kelly (formerly Corona) , Taylor Michael Winters , Ashley Akemi Ishigo , Brendan Michael Dalbow , Kim D. Nguyen , Lien Huong Thi Hoang
CPC分类号： A61F2/24 , A61B50/30 , A61F2/2418 , A61F2/2436 , A61M25/10 , A61F2/2433 , A61F2/9517 , A61F2002/9583 , A61F2220/0025 , A61F2220/0075 , A61F2230/0002 , A61F2250/0098
摘要： Methods and systems for rotationally aligning a commissure of a prosthetic heart valve with a commissure of a native valve are disclosed. In some examples, a method can include advancing a distal end portion of an assembly toward a native heart valve, the assembly comprising a delivery apparatus and a prosthetic heart valve, and including one or more radiopaque markers, where one radiopaque marker is suspended within a cell of a frame of the prosthetic heart valve and aligned with a commissure of the prosthetic heart valve. The method further includes receiving a fluoroscopic image in a selected imaging view of the prosthetic heart valve on the delivery apparatus, determining, based on the fluoroscopic image and the one or more radiopaque markers, whether the prosthetic heart valve is in a desired rotational orientation, and rotating the assembly until the prosthetic heart valve is in the desired rotational orientation.
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公开(公告)号：US11963871B2
公开(公告)日：2024-04-23
申请号：US18080043
申请日：2022-12-13
发明人： Nicholas Brandon Aders , Kristen Hicks , Gil Senesh , Michael R. Bialas , Tung T. Le , Sean Chow , Thanh Huy Le
CPC分类号： A61F2/2433 , B23P11/005 , A61F2/9524 , A61F2240/001 , A61F2250/0039
摘要： Devices and methods for crimping a prosthetic heart valve onto a delivery device are described. In some embodiments, valves are crimped over an inflatable balloon and between proximal and distal shoulders mounted on a shaft inside the balloon. Crimping methods can include multiple compression steps with the valve located in different axial positions relative to the crimping jaws at each different step. In some methods, the valve may extend partially outside of the crimping jaws during certain crimping steps, such that the crimping force is only applied to the part of the valve that is inside the jaws. Exemplary crimping devices can include two or more adjacent sets of jaws that close down to different inner diameters, such that different parts of a valve get compressed to different outer diameters at the same time during a single crimping step.
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公开(公告)号：US20230190465A1
公开(公告)日：2023-06-22
申请号：US18113490
申请日：2023-02-23
IPC分类号： A61F2/24
CPC分类号： A61F2/2433
摘要： Balloon covers for a delivery apparatus for a prosthetic valve are disclosed. As one embodiment, a balloon cover includes first and second shell members that are configured to matingly engage with each other, each including a first portion defining a first cavity configured to receive a distal end portion of the delivery apparatus and at least a portion of an inflatable balloon. The balloon cover includes one or more depression members, each having a free end configured to move radially inward toward a central longitudinal axis of the balloon cover, and a tubular sleeve configured to be positioned around the depression members and the first portions of the first and second shell members such that the first and second shell members are held in mating engagement with each other and the free ends of the depression members are depressed radially inward and form a negative radial depression in the balloon.
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公开(公告)号：US20230190464A1
公开(公告)日：2023-06-22
申请号：US18113477
申请日：2023-02-23
IPC分类号： A61F2/24
CPC分类号： A61F2/2433
摘要： Balloon covers for a delivery apparatus for a prosthetic valve are disclosed. As one embodiment, a balloon cover includes first and second shell members that are configured to matingly engage with each other, each of the first and second shell members including a first portion and a second portion, the second portion having a larger width than the first portion. The first portions of the first and second shell members define a first cavity configured to receive a distal end portion of the delivery apparatus and at least a portion of an inflatable balloon mounted on the distal end portion of the delivery apparatus. The second portions of the first and second shell members define a second cavity configured to receive a positioning device mounted on the distal end portion of the delivery apparatus, proximal to a valve mounting portion of the distal end portion of the delivery apparatus.
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公开(公告)号：US20220105313A1
公开(公告)日：2022-04-07
申请号：US17555169
申请日：2021-12-17
摘要： A steerable medical apparatus includes a shaft, a steering mechanism, and an actuation mechanism. The shaft has a proximal portion, a distal portion, a first pull wire, and a second pull wire. The distal ends of the first and second pull wires are coupled to the distal portion of the shaft. The steering mechanism has a first wheel and a second wheel coupled by a differential mechanism. The proximal ends of the first and second pull wires are respectively coupled to the first and second wheels. The actuation mechanism is coupled to the steering mechanism. Actuating the actuation mechanism in a first operational mode causes the distal portion of the shaft to curve in a first plane. Actuating the actuation mechanism in a second operational mode causes the distal portion of the shaft to curve away from the first plane.
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公开(公告)号：US11273036B2
公开(公告)日：2022-03-15
申请号：US16435288
申请日：2019-06-07
发明人： David Maimon , Michael R. Bialas , Mindy Lee Ann Black , Tamir S. Levi , Linda Thai , Yidong M. Zhu
摘要： Disclosed herein are embodiments of a balloon shaped to have one or more enlarged recons to selectively increase expansion forces on an implant. For example, the balloon may have a central portion that is enlarged to exert more force on the center of a stent-mounted prosthetic heart valve. This overcomes the stent-mounted prosthetic heart valve's tendency to expand with flared ends. This forms a more cylindrical or barrel shaped stent frame during expansion of the balloon—reducing or eliminating the instance wherein the cylindrical stent frame has flared ends. Alternatively, the balloon may have conical flares placed to cause or enhance flared ends of the cylindrical implant to enhance its anchoring capabilities.
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40.发明授权公开(公告)号：US11051925B2
公开(公告)日：2021-07-06
申请号：US16506912
申请日：2019-07-09
发明人： Vipul P. Rajpara , Darshin S. Patel , Michael R. Bialas , Brian R. Lowry , Russ Hunton , Arvin T. Chang
摘要： A method for preparing a prosthetic valve and a delivery system for an implantation procedure. The method comprises (a) obtaining a tray, the tray containing the delivery system, the prosthetic valve coupled to the delivery system, and a valve cover in which the prosthetic valve is disposed. The tray comprises a storage cavity comprising an open end, a floor, and a peripheral side wall defining the depth of the cavity, wherein the prosthetic valve and the valve cover are disposed in the storage cavity; and a mounting surface that substantially immobilizes and maintains the valve cover and prosthetic valve within the storage cavity. The method further comprises (b) at least partially filing the storage cavity with a first hydrating fluid to completely immerse the prosthetic valve; and (c) removing the delivery device with the prosthetic valve from the tray, including disengaging the prosthetic valve from the mounting surface.
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