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公开(公告)号：US08992591B2
公开(公告)日：2015-03-31
申请号：US12435689
申请日：2009-05-05
申请人： Fred T. Parker
发明人： Fred T. Parker
CPC分类号： A61F2/966 , A61F2/95 , A61F2002/9522
摘要： An improved delivery system for an implantable medical device includes a retention sheath having a proximal end, a distal end, and an inner lumen extending from the proximal end to the distal end. The implantable medical device is disposed within the inner lumen of the retention sheath, which restrains the implantable medical device. A plurality of substantially incompressible rings are disposed within the inner lumen of the retention sheath in a stacked co-axial configuration that extends from the proximal end of the retention sheath in a pre-deployment position to a proximal end of the implantable medical device. Each ring in the plurality of separate rings abuts at least a portion of an adjacent ring. The plurality of separate rings is configured to prevent the implantable medical device from moving toward a proximal end of the retention sheath when the retention sheath is moved from the pre-deployment position to a deployment position.
摘要翻译： 用于可植入医疗装置的改进的递送系统包括保持护套，其具有近端，远端和从近端延伸到远端的内腔。 可植入医疗装置设置在保持护套的内腔内，其限制可植入的医疗装置。 多个基本上不可压缩的环以保持护套的内端以预先展开位置从可植入医疗装置的近端延伸的堆叠同轴构造设置在保持护套的内腔内。 多个分离环中的每个环邻接相邻环的至少一部分。 多个单独的环被配置成当保持护套从预部署位置移动到展开位置时，防止可植入医疗装置朝向保持护套的近端移动。
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公开(公告)号：US08191220B2
公开(公告)日：2012-06-05
申请号：US11950244
申请日：2007-12-04
CPC分类号： C22F1/006 , A61F2/95 , A61F2002/9522 , A61F2210/0014 , A61F2250/0042 , C22F1/00 , C22F1/10 , Y10T29/4976 , Y10T29/49865
摘要： A process to load a medical device comprising a shape memory material into a delivery system is described herein. According to one aspect, the method includes applying a force to the medical device to obtain a delivery configuration thereof, where the device is at a first temperature within an R-phase temperature range of the shape memory material during application of the force. The medical device is cooled in the delivery configuration to a second temperature at or below a martensite finish temperature of the shape memory material. The force is then removed from the medical device, and the device is loaded into a delivery system. Preferably, the medical device substantially maintains the delivery configuration during the loading process.
摘要翻译： 本文描述了将包括形状记忆材料的医疗装置加载到递送系统中的过程。 根据一个方面，所述方法包括向所述医疗装置施加力以获得其输送构型，其中所述装置在所述力的施加期间处于所述形状记忆材料的R相温度范围内的第一温度。 医疗装置在输送构型中被冷却到等于或低于形状记忆材料的马氏体终止温度的第二温度。 然后将力从医疗装置中取出，将装置装载到输送系统中。 优选地，医疗装置在装载过程中基本维持输送构型。
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公开(公告)号：US08187396B2
公开(公告)日：2012-05-29
申请号：US12481362
申请日：2009-06-09
申请人： Fred T. Parker
发明人： Fred T. Parker
IPC分类号： C22F1/10
CPC分类号： A61F2/82 , A61F2240/001 , A61L31/022 , A61L31/14 , A61L2400/16
摘要： A method of making a self-expanding stent includes disposing a stent comprising a shape memory alloy about an inflatable body, and applying a coolant to a surface of the stent. The inflatable body is inflated to radially expand the stent to an expanded diameter from an initial diameter, and the coolant is reapplied to the surface of the stent. The inflatable body is deflated, and the stent is positioned about a mandrel sized to accommodate the expanded diameter of the stent, where the stent reaches a mandrel-defined diameter. The stent is heat set at the mandrel-defined diameter so as to impart a memory of an expanded configuration of the stent to the shape memory alloy.
摘要翻译： 制造自扩张支架的方法包括将包括形状记忆合金的支架围绕可充气体放置，并将冷却剂施加到支架的表面。 将充气体充气以将支架径向膨胀至从初始直径扩张的直径，并将冷却剂重新施加到支架的表面。 充气体被放气，并且支架围绕心轴定位，心轴尺寸适于支架的扩展直径，其中支架达到心轴限定的直径。 将支架热定形在心轴限定的直径处，以便将支架的扩张构型的记忆赋予形状记忆合金。
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公开(公告)号：US20120041537A1
公开(公告)日：2012-02-16
申请号：US13264329
申请日：2010-04-12
申请人： Fred T. Parker , Palle M. Hansen
发明人： Fred T. Parker , Palle M. Hansen
IPC分类号： A61F2/84
CPC分类号： A61F2/966 , A61F2/95 , A61F2/97 , A61F2002/9517
摘要： A stent introducer apparatus comprises a sheath for surrounding a stent member, with the sheath having a longitudinal slit extending from one end along at least a substantial part of the length thereof, and a sheath withdrawal device comprising a reel for winding up the sheath. A second sheath may surround the slit portion of the sheath. An intermediate guide member can smooth the withdrawal procedure and flatten the sheath before it is wound on the reel. The intermediate guide member may include at least one of a second reel or a slot-defining member. The reel may be operated by means of a gear system. A method of deploying a stent member is also provided.
摘要翻译： 支架引入装置包括用于围绕支架构件的护套，护套具有沿其长度的至少大部分的一端延伸的纵向狭缝，以及包括用于卷绕护套的卷轴的护套取出装置。 第二护套可以围绕护套的狭缝部分。 中间引导构件可以使护套平滑并且在将其卷绕在卷轴之前使其平坦化。 中间引导构件可以包括第二卷轴或槽限定构件中的至少一个。 卷轴可以通过齿轮系统来操作。 还提供了展开支架构件的方法。
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公开(公告)号：US20110264056A1
公开(公告)日：2011-10-27
申请号：US13063422
申请日：2009-09-18
CPC分类号： A61M25/001 , A61F2/95 , A61F2002/9665 , A61M25/0069 , A61M2025/0681
摘要： A catheter tip assembly (50) is provided with a catheter tip (56) and an inner catheter (54). The catheter tip (56) has a tapered proximal end, an elongate center portion, and a tapered distal end. The inner catheter (54) includes a narrow proximal portion, a narrow elongate center portion (66), and a wide distal end (68). The catheter tip (56) is disposed within the wide distal end (68) of the inner catheter (54). One advantage of the catheter tip assembly is that no proximal-facing edge is formed at the transition between the narrow elongate center portion of the inner catheter and the catheter tip, which may help reduce the risk of the catheter tip snagging on a stent during use.
摘要翻译： 导管末端组件（50）设置有导管尖端（56）和内部导管（54）。 导管尖端（56）具有锥形近端，细长中心部分和锥形远端。 内导管（54）包括窄的近端部分，细长的中心部分（66）和宽的远端（68）。 导管尖端（56）设置在内导管（54）的宽远端（68）内。 导管末端组件的一个优点是在内导管的窄细长中心部分与导管尖端之间的过渡处没有形成面向近端的边缘，这有助于降低在使用期间导管末端在支架上阻塞的风险 。
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公开(公告)号：US20110257599A1
公开(公告)日：2011-10-20
申请号：US13009454
申请日：2011-01-19
申请人： Fred T. Parker
发明人： Fred T. Parker
IPC分类号： A61M25/00
CPC分类号： A61M25/005 , A61M25/0053 , A61M25/0054 , A61M25/0662
摘要： Introducer sheath (10,30,40) having a flexible kink-resistant distal tip portion (26,32,42). A multilayer sheath structure is used, with an inner tube (12) such as PTFE having a coil (14) of wire wound therearound. A first length of outer tubing (20) such as of nylon is inserted over most of the coil-wound inner tube (12) in a manner exposing a distal length of coil-wound inner tube. A second length of outer tubing (22) with a softer durometer than first outer tubing length (20), is inserted over the exposed coil-wound inner tube and extends for a slight distance beyond the end of the coil. During heat application, the outer tubing lengths (20,22) are melted to bond to each other and to flow between the spacings of the coil turns to bond to the roughened outer surface of the inner tube (12). The distal tip region corresponding to the second tubing length is flexible and is kink-resistant due to the coil (14).
摘要翻译： 引导器护套（10,30,40）具有柔性扭结的远端尖端部分（26,32,42）。 使用多层护套结构，其中具有缠绕在其上的线圈（14）的诸如PTFE的内管（12）。 第一长度的诸如尼龙的外管（20）以暴露卷绕内管的远端长度的方式插入到大部分卷绕的内管（12）上。 具有比第一外管长度（20）更软的硬度的第二长度的外管（22）被插入暴露的卷绕卷绕的内管上并且延伸超过线圈端部的一小段距离。 在加热期间，外管长度（20,22）被熔化以彼此结合并且在线圈匝的间隔之间流动以结合到内管（12）的粗糙化的外表面。 对应于第二管道长度的远端尖端区域是柔性的并且由于线圈（14）而具有抗扭结性。
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公开(公告)号：US20080228028A1
公开(公告)日：2008-09-18
申请号：US12045351
申请日：2008-03-10
CPC分类号： A61F2/90 , A61F2/06 , A61F2/07 , A61F2002/075 , A61F2210/0014 , A61L31/022 , A61L31/041 , A61L31/14 , A61L2400/16 , C08L2201/12 , D02G3/12 , D02G3/448 , D03D3/02 , D03D13/004 , D03D13/008 , D03D15/00 , D03D15/08 , D10B2101/20 , D10B2321/021 , D10B2321/022 , D10B2321/042 , D10B2331/04 , D10B2331/10 , D10B2401/046 , D10B2401/061 , D10B2509/06
摘要： The disclosure relates to a woven fabric for use in an implantable medical device. The woven fabric comprises shape memory element strands woven with textile strands. At least one of the shape memory element strands has at least one float of at least five textile strands between binding points.
摘要翻译： 本公开涉及用于可植入医疗装置的机织织物。 机织织物包括用织物股线编织的形状记忆元件股。 形状记忆元件股线中的至少一个在结合点之间具有至少一个至少五个纺织股线的浮子。
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公开(公告)号：US07172623B2
公开(公告)日：2007-02-06
申请号：US10267385
申请日：2002-10-09
IPC分类号： A61F2/06
CPC分类号： A61F2/91 , A61F2/915 , A61F2002/91516 , A61F2002/91525 , A61F2002/91533 , A61F2002/91558 , A61F2002/91575 , A61F2230/0054
摘要： A stent (30) formed from cannula and having flexible segments (31) and high hoop strength segments (32) alternating therealong. Longitudinal struts or tie bars (41) interconnect the segments. Minimal length reduction of the strut occurs upon expansion. In the high hoop strength segment (32), struts (37) in a zig-zag configuration (Gianturco Z-stent) are initially parallel in the unexpanded strut condition. In the flexible segment (31), struts (58) extend from a respective C-shaped bend (59) to converge at the opposite ends thereof when unexpanded. In one embodiment, certain adjacent struts (39–41) of the hoop segment are spaced apart by elongated openings or gaps (46, 48) interposed therebetween and interconnected at their respective ends (42, 44) to form a T-shaped strut interconnection (45). The selected width (50, 51) of the first and third struts (54, 57) increases toward the ends (47, 48) of the elongated openings (46, 48) adjacent the strut interconnection (45). This strut width increase about one end of the strut significantly reduces the tensile strain exhibited about the opening end when the stent is radially expanded during manufacture. The tip length (52, 55) of the struts about the interconnection (45) is also adjusted (increased) along with the other C-shaped strut interconnections (59, 71) to further distribute the tensile strain developed during radial expansion.
摘要翻译： 由套管形成并具有柔性段（31）和高箍环段（32）的支架（30），所述柔性段（31）和/或环箍强度段（32）沿其交替。 纵向支柱或连接杆（41）将各段相互连接。 扩张时发生支柱的最小长度减小。 在高箍强度段（32）中，曲折形状的支柱（37）（Gianturco Z支架）最初在未膨胀的支柱条件下平行。 在柔性段（31）中，当未膨胀时，支柱（58）从相应的C形弯曲部（59）延伸到其相对端处会聚。 在一个实施例中，环形段的某些相邻的支柱（39-41）通过插入其间的细长开口或间隙（46,48）间隔开，并在它们各自的端部（42,44）处互连，以形成T形支柱互连 （45）。 第一和第三支柱（54,57）的所选择的宽度（50,51）朝着与支柱互连（45）相邻的细长开口（46,48）的端部（47,48）增加。 当支架在制造期间径向膨胀时，该支撑宽度围绕支柱的一端增加显着地减小了围绕开口端呈现的拉伸应变。 支撑在互连（45）上的支柱的尖端长度（52,55）也与其他C形支柱互连（59,71）一起被调整（增加），以进一步分配在径向膨胀期间产生的拉伸应变。
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公开(公告)号：US5700253A
公开(公告)日：1997-12-23
申请号：US370926
申请日：1995-01-10
申请人： Fred T. Parker
发明人： Fred T. Parker
CPC分类号： A61M25/0662 , A61M25/0012 , A61M25/005 , B29C43/18 , B29C2043/3665 , B29K2105/258 , B29L2023/00
摘要： A flexible, kink-resistant, introducer sheath for percutaneous vascular access. The introducer sheath includes a flat wire coil with uniform spacing between the turns, which is compression fitted about an inner, lubricous material polytetrafluoroethylene tube. The introducer sheath further includes an outer tube of a heat formable polyamide material which is heat formed and compressed through the spaces between the turns of the wire coil to mechanically connect to the roughened outer surface of the inner tube. The distal end of the outer tube is tapered in a mold with additional polyamide outer tube material. The proximal end of the sheath is flared for connection to a connector fitting. In another aspect of the introducer sheath, the flat wire coil has an inner diameter less than the outer diameter of the inner tube. The coil is then expanded and wrapped around the inner tube to form a compression fit.
摘要翻译： 用于经皮血管通路的柔性，扭结的导引鞘。 引导器鞘包括在匝之间具有均匀间隔的扁线线圈，其围绕内部润滑材料聚四氟乙烯管压缩配合。 引导器护套还包括可热成型的聚酰胺材料的外管，其通过线圈的匝之间的空间热形成和压缩，以机械地连接到内管的粗糙化的外表面。 外管的远端在具有额外的聚酰胺外管材料的模具中成锥形。 护套的近端用于连接到连接器配件。 在导引鞘的另一方面，扁线线圈的内径小于内管的外径。 然后将线圈膨胀并缠绕在内管周围以形成压配合。
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公开(公告)号：US09138338B2
公开(公告)日：2015-09-22
申请号：US13322091
申请日：2010-05-21
CPC分类号： A61F2/95 , A61F2/958 , A61F2002/9522 , Y10T29/49908
摘要： A two-stage method of compressing a stent entails providing an expandable stent (100,105) in a radially expanded state. An outward pressure is applied to an inner surface of the tubular framework to support the stent, and a diameter of the stent is reduced to a first compressed diameter (D1) while applying the outward pressure. The outward pressure is halted after reaching the first compressed diameter. According to an embodiment in which the stent is balloon-expandable, a delivery balloon catheter (130) comprising an uninflated balloon in a delivery configuration is inserted into the lumen after halting the outward pressure. The diameter of the stent is reduced to a second compressed diameter (D2) smaller than the first compressed diameter to crimp the stent onto the delivery balloon catheter.
摘要翻译： 压缩支架的两级方法需要提供处于放大状态的可扩张支架（100,105）。 向管状框架的内表面施加向外的压力以支撑支架，并且在施加向外的压力的同时将支架的直径减小到第一压缩直径（D1）。 达到第一压缩直径后，向外的压力停止。 根据其中支架是球囊可膨胀的实施例，包括具有输送构型的未膨胀气囊的输送气囊导管（130）在停止向外的压力之后插入腔内。 支架的直径减小到小于第一压缩直径的第二压缩直径（D2），以将支架卷曲到输送球囊导管上。
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