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1. 发明申请

WO2008051431A1 SYSTEM AND METHOD FOR REMOVAL OF MATERIAL FROM A BLOOD VESSEL USING A SMALL DIAMETER CATHETER 审中-公开
标题翻译：使用小直径导管从血液瓶中取出材料的系统和方法
公开(公告)号：WO2008051431A1
公开(公告)日：2008-05-02
申请号：PCT/US2007/022216
申请日：2007-10-18
申请人： RADIUS MEDICAL TECHNOLOGIES, INC. , DEMELLO, Jonathan, R. , FINLAYSON, Maureen, A. , DEMELLO, Richard, M. , BURKHARDT, Jon , FLIGHT, Bruce, W.
发明人： DEMELLO, Jonathan, R. , FINLAYSON, Maureen, A. , DEMELLO, Richard, M. , BURKHARDT, Jon , FLIGHT, Bruce, W.
IPC分类号： A61B17/22 , A61B17/00
CPC分类号： A61B17/32056 , A61B17/221 , A61B2017/00867 , A61B2017/22034 , A61B2017/22035 , A61B2017/22094 , A61B2017/2212
摘要： This invention provides a small diameter snare device and device for thrombus removal consisting of a hollow, elongate, thin- walled outer sheath constructed from polymer, at least at a distal part thereof. A single central core wire extends through the entire length of the sheath. The outer diameter of the core wire is sized close to the inner diameter of the sheath while allowing for axial sliding, in order to maximize the support to the body portion of the snare device. The distal end of the core wire has a tapered section of reduced diameter or cross section to provide a "guidewire-like" flexibility to the distal portion of the device. A second wire (or wires) of about fifty percent or less of the inner diameter of the sheath is (are) shaped to form a snare loop or radially extended tool tip that is attached to the distal most portion of the central core wire. The snare loop is typically circular or oval shaped and can also be multiplanar (for example, a twisted, figure eight shape) so as to increase the ability to ensnare and capture objects. The tool tip can be a planar or multi-planar, proximally directed structure that, when deployed, is adapted to engage the thrombus from behind after piercing the thrombus with the sheath while the tool tip is retracted.
摘要翻译：本发明提供了一种用于血栓消除的小直径圈套装置和装置，其由至少在其远端部分由聚合物构成的中空细长的薄壁外护套组成。单个中心芯线延伸穿过护套的整个长度。芯线的外径尺寸接近护套的内径，同时允许轴向滑动，以便最大限度地提供对圈套装置的主体部分的支撑。芯线的远端具有减小直径或横截面的锥形部分，以向装置的远端部分提供“导丝状”柔性。外壳的内径大约百分之五十以下的第二丝线（或线）被成形为形成环绕或径向延伸的工具尖端，其附接到中心芯线的最远端部分。圈套环通常为圆形或椭圆形，并且也可以是多平面的（例如，扭曲的八角形状），以增加捕获和捕获物体的能力。工具尖端可以是平面或多平面的近端定向的结构，当部署时，其适于在工具尖端缩回时用护套刺穿血栓之后从后面接合血栓。

2. 发明申请

WO2005087119A1 SMALL-DIAMETER SNARE 审中-公开
标题翻译：小直径鼻孔
公开(公告)号：WO2005087119A1
公开(公告)日：2005-09-22
申请号：PCT/US2005/007361
申请日：2005-03-07
申请人： RADIUS MEDICAL TECHNOLOGIES, INC. , DEMELLO, Richard, M. , FINLAYSON, Maureen, A. , FLIGHT, Bruce, W. , BURKHARDT, Jon
发明人： DEMELLO, Richard, M. , FINLAYSON, Maureen, A. , FLIGHT, Bruce, W. , BURKHARDT, Jon
IPC分类号： A61B17/32
CPC分类号： A61B17/32056 , A61B17/221 , A61B90/39 , A61B2017/22035 , A61B2017/22042 , A61B2017/22045 , A61B2017/2212 , A61B2017/2924
摘要： This invention provides a small diameter snare device consisting of a hollow, elongate, thin-walled polymer outer sheath. A single central core wire extends through the entire length of the sheath. The outer diameter of the core wire is sized close to the inner diameter of the sheath while allowing for axial sliding, in order to maximize the support to the body portion of the snare device. The distal end of the core wire has a tapered section of reduced diameter or cross section to provide a "guidewire-like" flexibility to the distal portion of the device. A second wire of about fifty percent of the inner diameter of the sheath is shaped to form a snare loop and the two ends are attached to the distal most portion of the central core wire via welding, soldering, or brazing. After assembly of the core and sheath, a second short, hollow tube is fitted over the proximal end of the central core and attached thereto to provide an actuating handle to slideably moue the central core within the sheath, thus exposing and retracting the snare loop from the open distal end of the sheath. The loop is typically circular or oval shaped and can also be multiplanar (for example, a twisted, figure eight shape) so as to increase the ability to ensnare and capture objects. The loop attachment to the core wire is facilitated and strengthened by a wrapped coupling coil formed typically of 0.001-inch platinum wire applied to secure the loop prior to soldering (brazing or other metal-flowing joining techniques), and through which solder flows to permanently secure the loop to the core wire.
摘要翻译：本发明提供一种由中空细长的薄壁聚合物外护套组成的小直径圈套装置。单个中心芯线延伸穿过护套的整个长度。芯线的外径尺寸接近护套的内径，同时允许轴向滑动，以便最大限度地提供对圈套装置的主体部分的支撑。芯线的远端具有减小直径或横截面的锥形部分，以向装置的远端部分提供“导丝状”柔性。护套内径大约百分之五十的第二根线被成形为形成一个圈套环，两端通过焊接，焊接或钎焊连接到中心芯线的最远端部分。在组装芯和护套之后，第二短的中空管装配在中心芯的近端上并附接到其上以提供致动手柄以可滑动地使护套内的中心芯移动，从而将圈套环从护套的开口远端。该环通常是圆形或椭圆形，并且也可以是多平面的（例如，扭曲的八字形状），以增加捕获和捕获物体的能力。通过一个通常用0.001英寸铂线形成的缠绕的耦合线圈来促进和加强与芯线的连接，以在焊接之前固定环（钎焊或其它金属流动接合技术），并且焊料通过其永久流动将环路固定到芯线。

3. 发明申请

WO1996026671A1 POLYMERIC IMPLEMENTS FOR TORQUE TRANSMISSION 审中-公开
标题翻译：用于扭矩变速器的聚合物实施
公开(公告)号：WO1996026671A1
公开(公告)日：1996-09-06
申请号：PCT/US1996002265
申请日：1996-02-28
申请人： BOSTON SCIENTIFIC CORPORATION , WANG, James, C. , CHIN, Albert , DAIGLE, James, B. , DANIELS, Douglas, J. , DEMELLO, Richard, M. , HARTNETT, John, F. , REID, Robert, B. , ROWLAND, Christopher, A. , WARICH, Charles , SVATEK, Thomas, A.
发明人： BOSTON SCIENTIFIC CORPORATION
IPC分类号： A61B05/00
CPC分类号： A61M25/09 , A61M25/0009 , A61M25/0043 , A61M25/0054 , A61M2025/09075 , A61M2025/09191 , A61M2025/1086 , B29K2021/00 , B29L2031/7542
摘要： Implements, particularly medical instruments, formed at least in part of elongated polymer members, exhibit high torque fidelity after processing with tension, heat, and twisting. The processing orients the polymer in generally helical paths so that torque imposed at the proximal end can be transmitted to the distal end without substantial whipping, even if the implement follows a long and tortuous pathway. Applications include a medical guide wire (2) with stiff portion (14), transition portion (16) and flexible portion (18), a catheter (140) and a sphincteral (170).
摘要翻译：至少部分细长聚合物构件形成的特别是医疗器械的实施在用张力，加热和扭转加工后表现出高扭矩保真度。加工将聚合物定向在大致螺旋状路径中，使得施加在近端处的扭矩可以传递到远端而没有实质的鞭打，即使该工具遵循长而曲折的路径。应用包括具有刚性部分（14），过渡部分（16）和柔性部分（18），导管（140）和括约肌（170）的医疗导丝（2）。

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