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公开(公告)号：US10231852B2
公开(公告)日：2019-03-19
申请号：US15100555
申请日：2014-12-03
摘要： A vascular stent (1) for scaffolding a vessel (11) from the inside, wherein the stent is provided with a plurality of tube-forming elements (3A), (3B), and (3C) for forming a tube (2), the tube-forming elements combining with each other to construct a single flow path. Each of the tube-forming elements is formed by bending a strand comprising a single continuous biodegradable polymer, and first and second projecting parts (4, 5) are formed by successive alternation. Formation occurs in multiple stages in the axial direction of the tube by connecting using connecting legs (6) for successively connecting one side of the first projecting part and the other side of the second projecting part where the first and second projecting parts successively alternate. Elastic displacement parts (9) for performing elastic displacement by applying a pressing force to the tube are formed in the middle of the connecting legs successively connecting the first and second projecting parts of the tube-forming elements.
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公开(公告)号：US20130345787A1
公开(公告)日：2013-12-26
申请号：US13885301
申请日：2011-11-11
申请人： Keiji Igaki , Hirokazu Yamada
发明人： Keiji Igaki , Hirokazu Yamada
IPC分类号： A61F2/958
CPC分类号： A61F2/958 , A61F2/966 , A61F2002/9517
摘要： A catheter apparatus comprising a catheter and a sheath are provided. The catheter has a distal end to which an insertion guiding member is attached, provided at its distal end with a balloon to expand a vascular stent, and provided with an expansion medium supplying channel for supplying an expansion medium to inflate the balloon and with a guide wire insertion channel for inserting a guide wire. The sheath is operated to move relative to the catheter between the section where it is covering the balloon attaching the vascular stent and the section where it is supposed to expose the vascular stent attached to the balloon. A first movement restrictor and a second movement restrictor are provided, thereby restricting movable position such that excessive movement of the sheath is restricted, injuring of a blood vessel is prevented and the stent is implanted to a desired site in a blood vessel.
摘要翻译： 提供了包括导管和护套的导管装置。 导管具有远端，插入引导构件在其远端处设置有用于扩张血管支架的气囊，并且设置有用于供应膨胀介质以使气囊膨胀的引导通道和引导件 用于插入导丝的线插入通道。 护套被操作以在其覆盖附着血管支架的气囊的部分与其应该暴露连接到气囊的血管支架的部分之间相对于导管移动。 提供第一移动限制器和第二移动限制器，从而限制可移动位置，使得护套的过度运动被限制，防止血管受伤，并将支架植入到血管中的期望位置。
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公开(公告)号：US20120185030A1
公开(公告)日：2012-07-19
申请号：US13497010
申请日：2010-09-09
申请人： Keiji Igaki , Hirokazu Yamada
发明人： Keiji Igaki , Hirokazu Yamada
IPC分类号： A61F2/84
CPC分类号： A61F2/958 , A61F2002/9583 , A61F2250/0037 , A61F2250/0065 , A61M25/0029 , A61M2025/0183 , A61M2025/0681
摘要： Present invention is a medical catheter apparatus used for implanting a vascular stent into a vessel of a living body comprising a catheter (2) provided with a balloon (3), on which a vascular stent (4) is mounted, and a sheath into which the catheter is relatively movably inserted. The catheter is provided at the middle portion with a guide wire leading-out opening (11) for leading out the inserted guide wire (9) toward the side direction of the catheter, the sheath is provided at a middle portion with a guide wire drawing-out opening (13) for drawing the guide wire drawn from the catheter out of the sheath, and a guide wire drawing-out guiding mechanism (14) is provided between the guide wire leading-out opening and the guide wire drawing-out opening for guiding the guide wire led out from the guide wire leading-out opening to the guide wire drawing-out opening. The guide wire drawing-out guiding mechanism has a variable length from the guide wire leading-out opening to the guide wire drawing-out opening which varies in accordance with the relative movement of the sheath with respect to the catheter.
摘要翻译： 本发明是用于将血管支架植入生物体的容器中的医疗导管装置，其包括设置有血管支架（4）的气囊（3）的导管（2）和护套，鞘 导管可相对移动地插入。 导管在中部设有导丝引出口（11），用于将插入的导丝（9）朝向导管的侧面方向导出，护套在中间部分设有导丝拉丝 （13），用于将从导管拉出的导丝从护套中拉出，导丝引出引导机构（14）设置在导丝引出口和导丝拉出口 用于将从导丝引出口引出的导丝引导到导丝拉出口。 引导线拉出引导机构具有从导丝引出口到导丝拉出口的可变长度，其根据护套相对于导管的相对运动而变化。
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公开(公告)号：US09668897B2
公开(公告)日：2017-06-06
申请号：US13811190
申请日：2011-07-19
申请人： Keiji Igaki , Hirokazu Yamada
发明人： Keiji Igaki , Hirokazu Yamada
CPC分类号： A61F2/95 , A61F2/07 , A61F2/86 , A61F2/89 , A61F2002/075 , A61F2210/0004 , A61F2250/003 , A61L31/10 , A61L31/14 , A61L31/16 , A61L2300/416 , A61L2400/16 , C08L67/04
摘要： Present invention is a stent apparatus wherein a stent covering member holds a stent, which scaffolds a blood vessel from the inside when implanted in the blood vessel, in contracted state. The stent is formed of a biodegradable polylactic acid (PLA) as a tubular shape, shape memorized to a size capable of, when implanted in a vessel, scaffolding the blood vessel from the inside. This stent is held by the stent covering member in contracted state and mounted on a balloon of a balloon. The covering member is formed of a biodegradable polymer having elasticity as a cylindrical shape having an inner diameter to keep the stent in contracted state and, when the stent is expanded to the shape memorized shape, plastically deformed to release the holding of the stent. The stent and the stent covering member disappear in a vessel after they are implanted in the vessel.
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公开(公告)号：US20140309722A1
公开(公告)日：2014-10-16
申请号：US14001643
申请日：2012-02-17
申请人： Keiji Igaki , Hirokazu Yamada
发明人： Keiji Igaki , Hirokazu Yamada
CPC分类号： A61F2/962 , A61F2/07 , A61F2/89 , A61F2/90 , A61F2002/075 , A61F2002/9505 , A61F2210/0004 , A61F2230/0054 , A61F2250/003 , A61F2250/0098 , A61L31/06 , A61L31/14 , A61L2400/16 , C08L67/04
摘要： An object is to surely hold a stent formed of a biodegradable polymer and shape memorized to an expanded size having a diameter larger than an inner diameter of a vessel on a balloon in contracted state. A stent apparatus comprises a stent formed of a biodegradable polymer material using polylactic acid having a shape memory property as a tubular shape and shape memorized to a size capable of scaffolding a vessel from the inside when implanted in the vessel; and a stent holding member formed of a biodegradable polymer material for covering the outer surface of the stent to hold the stent in a contracted state that is smaller in diameter than the shape memorized size, wherein a stent detecting member is attached to the stent and a part of the stent holding member is fixed to the stent detecting member.
摘要翻译： 目的是确保由收缩状态的气囊保持由可生物降解的聚合物形成的支架和形状被记忆到具有大于容器内径的直径的膨胀尺寸。 支架装置包括由生物可降解聚合物材料形成的支架，其使用具有形状记忆特性的聚乳酸作为管状，并且形状被记忆为当植入到容器中时能够从内部框架容器的尺寸; 以及由可生物降解的聚合物材料形成的支架保持构件，用于覆盖所述支架的外表面以将所述支架保持在直径小于形状记忆尺寸的收缩状态，其中支架检测构件附接到所述支架，并且 支架保持构件的一部分固定在支架检测构件上。
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公开(公告)号：US08617232B2
公开(公告)日：2013-12-31
申请号：US13497010
申请日：2010-09-09
申请人： Keiji Igaki , Hirokazu Yamada
发明人： Keiji Igaki , Hirokazu Yamada
IPC分类号： A61F2/06
CPC分类号： A61F2/958 , A61F2002/9583 , A61F2250/0037 , A61F2250/0065 , A61M25/0029 , A61M2025/0183 , A61M2025/0681
摘要： Present invention is a medical catheter apparatus used for implanting a vascular stent into a vessel of a living body comprising a catheter (2) provided with a balloon (3), on which a vascular stent (4) is mounted, and a sheath into which the catheter is relatively movably inserted. The catheter is provided at the middle portion with a guide wire leading-out opening (11) for leading out the inserted guide wire (9) toward the side direction of the catheter, the sheath is provided at a middle portion with a guide wire drawing-out opening (13) for drawing the guide wire drawn from the catheter out of the sheath, and a guide wire drawing-out guiding mechanism (14) is provided between the guide wire leading-out opening and the guide wire drawing-out opening for guiding the guide wire led out from the guide wire leading-out opening to the guide wire drawing-out opening. The guide wire drawing-out guiding mechanism has a variable length from the guide wire leading-out opening to the guide wire drawing-out opening which varies in accordance with the relative movement of the sheath with respect to the catheter.
摘要翻译： 本发明是用于将血管支架植入生物体的容器中的医疗导管装置，其包括设置有血管支架（4）的气囊（3）的导管（2）和护套，鞘 导管可相对移动地插入。 导管在中部设有导丝引出口（11），用于将插入的导丝（9）朝向导管的侧面方向导出，护套在中间部分设有导丝拉丝 （13），用于将从导管拉出的导丝从护套中拉出，导丝引出引导机构（14）设置在导丝引出口和导丝拉出口 用于将从导丝引出口引出的导丝引导到导丝拉出口。 引导线拉出引导机构具有从导丝引出口到导丝拉出口的可变长度，其根据护套相对于导管的相对运动而变化。
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公开(公告)号：US20130131778A1
公开(公告)日：2013-05-23
申请号：US13811190
申请日：2011-07-19
申请人： Keiji Igaki , Hirokazu Yamada
发明人： Keiji Igaki , Hirokazu Yamada
IPC分类号： A61F2/95
CPC分类号： A61F2/95 , A61F2/07 , A61F2/86 , A61F2/89 , A61F2002/075 , A61F2210/0004 , A61F2250/003 , A61L31/10 , A61L31/14 , A61L31/16 , A61L2300/416 , A61L2400/16 , C08L67/04
摘要： Present invention is a stent apparatus wherein a stent covering member holds a stent, which scaffolds a blood vessel from the inside when implanted in the blood vessel, in contracted state. The stent is formed of a biodegradable polylactic acid (PLA) as a tubular shape, shape memorized to a size capable of, when implanted in a vessel, scaffolding the blood vessel from the inside. This stent is held by the stent covering member in contracted state and mounted on a balloon of a balloon. The covering member is formed of a biodegradable polymer having elasticity as a cylindrical shape having an inner diameter to keep the stent in contracted state and, when the stent is expanded to the shape memorized shape, plastically deformed to release the holding of the stent. The stent and the stent covering member disappear in a vessel after they are implanted in the vessel.
摘要翻译： 本发明是一种支架装置，其中支架覆盖构件保持支架，其在植入在血管中时从内部支撑血管，处于收缩状态。 该支架由可生物降解的聚乳酸（PLA）形成为管状，其形状被记忆为能够在植入血管时从内部构建血管的尺寸。 该支架由收缩状态的支架覆盖部件保持，并且安装在气球的气球上。 覆盖部件由具有弹性的可生物降解的聚合物形成，其具有内径以保持支架处于收缩状态，并且当支架膨胀到形状记忆形状时，塑性变形以释放支架的保持。 支架和支架覆盖构件在植入容器后在容器中消失。
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公开(公告)号：US20120245669A1
公开(公告)日：2012-09-27
申请号：US13381164
申请日：2010-09-09
申请人： Keiji Igaki , Hirokazu Yamada
发明人： Keiji Igaki , Hirokazu Yamada
IPC分类号： A61F2/84
CPC分类号： A61F2/958 , A61F2002/9583
摘要： Medical catheter apparatus used for implanting a vascular stent into a vessel of a living body comprising a catheter including a distal portion where a balloon attaching a vascular stent is provided, and a sheath into which the catheter is inserted and to be moved relative to the catheter between the section where it covers the balloon on which a vascular stent is mounted and the section where it exposes the vascular stent mounted on the balloon. The sheath comprises a first tubular member covering the distal portion at which the balloon is provided, and a second tubular member covering the proximal portion of the catheter and connected with the first tubular member. The first tubular member is formed of a tubular member capable of flexible deformation and the second tubular member is formed of a tubular member less extensible in the axial direction than the first tubular member.
摘要翻译： 用于将血管支架植入生物体的容器中的医疗导管装置，其包括导管，其包括其中设置有附着血管支架的气囊的远侧部分，以及导管插入并相对于导管移动的护套 在其覆盖其上安装血管支架的气囊的部分和其上暴露安装在气囊上的血管支架之间。 护套包括覆盖设置球囊的远端部分的第一管状构件和覆盖导管的近端部分并与第一管状构件连接的第二管状构件。 第一管状构件由能够变形的管状构件形成，第二管状构件由在第一管状构件的轴向方向上不可延伸的管状构件形成。
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公开(公告)号：US08262687B2
公开(公告)日：2012-09-11
申请号：US10220472
申请日：2001-04-27
申请人： Keiji Igaki
发明人： Keiji Igaki
IPC分类号： A61M29/00
CPC分类号： A61F2/95 , A61F2/958 , A61F2002/9505 , A61F2002/9583 , A61M2025/1086
摘要： A stent holding member used in a stent delivery system adapted to implant a stent of a cylindrical configuration, designed to be embedded in a living body, to a desired site of implantation in a vessel of the living body. The stent holding member includes a tubular holding member formed of an elastic material. The holder has a groove in its outer peripheral portion for holding one or more supporting struts making up the stent. Each of these supporting struts is embedded at least partially in the groove to hold the stent. The groove has its opening end side expanded by expansion of the holder along the radial direction. By expansion of the opened end of the groove, the stent held in the groove is dilated and released from the holder.
摘要翻译： 一种用于支架输送系统中的支架保持构件，其适于将设计为嵌入生物体的圆柱形构造的支架植入到生物体的血管中的期望的植入位置。 支架保持构件包括由弹性材料形成的管状保持构件。 保持器在其外周部分具有用于保持构成支架的一个或多个支撑支柱的槽。 这些支撑支柱中的每一个至少部分地嵌入在凹槽中以保持支架。 槽的开口端侧沿着径向的方向膨胀， 通过槽的开口端的膨胀，保持在槽中的支架被膨胀并从保持器释放。
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公开(公告)号：US20240091404A1
公开(公告)日：2024-03-21
申请号：US18276124
申请日：2022-02-08
申请人： Shin-Etsu Chemical Co., Ltd. , JAPAN VAM & POVAL CO., LTD. , TOHOKU UNIVERSITY , KYOTO MEDICAL PLANNING Co.,Ltd.
CPC分类号： A61L27/222 , A61L27/38 , A61L27/58
摘要： Provided is a novel device (implantation device) containing a gelatin. The implantation device is made of a bioabsorbable non-woven fabric containing a gelatin.
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