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公开(公告)号：US6117106A
公开(公告)日：2000-09-12
申请号：US419614
申请日：1999-10-14
CPC分类号： A61M25/104 , A61M25/0052 , A61M2025/0004 , A61M2025/1079 , A61M2025/1097 , A61M25/0053
摘要： A perfusion dilatation catheter is disclosed which has an improved distal catheter shaft portion with a tubular member extending within the balloon provided with an expanded coil support incorporated within the wall of the tubular member. The coil is preferably closer to the inner surface than the outer surface of the tubular member. Also disclosed are improved catheter shaft sections in a perfusion portion proximal to the balloon, one with a reinforced inflation tube depending into the guidewire lumen and another having three separate lumens, a central guidewire lumen and a pair of inflation lumens on opposing sides of the tubular structure defining the guidewire lumen.
摘要翻译： 公开了一种灌注扩张导管，其具有改进的远端导管轴部分，其具有在球囊内延伸的管状构件，该管状构件设置有并入管状构件的壁内的扩张的线圈支架。 线圈优选地比管状构件的外表面更靠近内表面。 还公开了在靠近气囊的灌注部分中的改进的导管轴部分，一个具有依赖于导丝管腔的增强的充气管，另一个具有三个独立的腔，中心导丝腔和一对在管的相对侧上的充气腔 限定导丝管腔的结构。
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公开(公告)号：US5849846A
公开(公告)日：1998-12-15
申请号：US476101
申请日：1995-06-06
申请人： Ziyun Chen , Tai C. Cheng , Jeong S. Lee , Ketan P. Muni , Udayan Patel , Robert P. Saltman
发明人： Ziyun Chen , Tai C. Cheng , Jeong S. Lee , Ketan P. Muni , Udayan Patel , Robert P. Saltman
IPC分类号： A61L29/00 , A61L29/04 , A61M25/00 , A61M25/16 , C08L23/02 , C08L67/00 , C08L67/02 , C08L77/00 , A61M25/10 , A61M29/02
CPC分类号： A61L29/049 , A61M25/1029 , C08L67/02 , A61M2025/1031 , A61M25/0009
摘要： A catheter and/or balloon for a medical catheter is formed from a blend of polymeric components, including a first crystalline polymeric component and a second softening polymeric component. The polymeric material can also include a third compatibilizing agent to facilitate blending the first two polymeric components together. The first polymeric component can be a polyester or a polyamide, and the second polymeric component can be a polyolefin, or an ethylene copolymer. The third polymeric component is preferably an ethylene copolymer containing a reactive group that forms a covalent bond with the first polymeric component. The polymeric material forming the balloon or catheter also can include a catalyst to catalyze a reaction between the compatibilizing ethylene copolymer and the second polymer component. The second, softening polymeric component can also include a silane coupling agent, to provide a reactive softening copolymer that bonds with the first strong polymeric component, to provide increased flexibility of catheters and balloons formed from the polymeric components. The properties of the balloon and catheter formed from the polymeric material can be enhanced by crosslinking by irradiation of the polymeric material.
摘要翻译： 用于医疗导管的导管和/或气囊由聚合物组分的混合物形成，包括第一结晶聚合物组分和第二软化聚合物组分。 聚合物材料还可以包括第三相容剂以便于将前两个聚合物组分共混在一起。 第一聚合物组分可以是聚酯或聚酰胺，第二聚合物组分可以是聚烯烃或乙烯共聚物。 第三聚合物组分优选是含有与第一聚合物组分形成共价键的反应性基团的乙烯共聚物。 形成气囊或导管的聚合物材料还可以包括催化剂，以催化相容性乙烯共聚物和第二聚合物组分之间的反应。 第二软化聚合物组分还可以包括硅烷偶联剂，以提供与第一强聚合物组分键合的反应性软化共聚物，以提供由聚合物组分形成的导管和气囊的增加的柔性。 由聚合物材料形成的球囊和导管的性质可以通过聚合材料的照射交联来增强。
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公开(公告)号：US5348537A
公开(公告)日：1994-09-20
申请号：US913859
申请日：1992-07-15
申请人： Steven P. Wiesner , Ketan P. Muni
发明人： Steven P. Wiesner , Ketan P. Muni
CPC分类号： A61M25/0075 , A61M25/104 , A61M2025/0063
摘要： A sealing element for dilatation and other inflatable catheters which is formed of a polymer matrix having a bearing surface and having incorporated, at least in the portion of the matrix forming the bearing surface, a lubricous material which swells upon contact with an aqueous based liquid. The bearing surface is adapted to engage the surface of a movable member such as a guidewire when the bearing surface expands from contact with aqueous based liquid. This engagement seals the interface between the movable member and the sealing element and prevents the passage of significant amounts of liquid through the interface between these elements.
摘要翻译： 用于膨胀的密封元件和其它可充气导管，其由具有支承表面的聚合物基体形成，并且至少在形成支承表面的基质部分中并入润滑材料，所述润滑材料在与基于水的液体接触时溶胀。 当轴承表面与基于水的液体的接触膨胀时，支承表面适于接合诸如导丝的可移动部件的表面。 该接合密封可移动构件和密封元件之间的界面，并防止大量液体通过这些元件之间的界面。
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84.发明授权Catheters with non-removable guide members useable for treatment of sinusitis 有权导尿管与不可拆卸的导引器可用于治疗鼻窦炎公开(公告)号：US08951225B2
公开(公告)日：2015-02-10
申请号：US11438090
申请日：2006-05-18
申请人： Philip Evard , Ketan P. Muni , John Morriss , John Chang
发明人： Philip Evard , Ketan P. Muni , John Morriss , John Chang
CPC分类号： A61M29/02 , A61B17/24 , A61M25/10 , A61M2025/1075 , A61M2025/1079 , A61M2025/1093 , A61M2029/025 , A61M2210/0618 , A61M2210/0681
摘要： Balloon catheter, guide catheter and method for dilating openings in paranasal sinuses. A non-removable guide member (e.g., guidewire) extends from the distal end of the balloon catheter. The non-removable guide member initially passes through the opening of the paranasal sinus and is followed by the catheter body on which the balloon is mounted. The balloon is then inflated causing dilation of the opening of the paranasal sinus. In some embodiments, the non-removable guide member may be shapeable so that the operator may place the non-removable guide member in a desired shape prior to insertion of the balloon catheter. In some embodiments, the length of the non-removable guide member may be adjustable such that the operator may adjust the length of the non-removable guide member prior to insertion of the balloon catheter.
摘要翻译： 气囊导管，引导导管和扩大鼻旁窦口的方法。 不可移除的引导构件（例如，导丝）从气囊导管的远端延伸。 不可拆卸的引导构件最初穿过鼻旁窦的开口，并且其后是安装气囊的导管主体。 然后气球膨胀，导致鼻旁窦开口的扩张。 在一些实施例中，不可拆卸的引导构件可以是可成形的，使得操作者可以在插入球囊导管之前将不可拆卸的引导构件放置在期望的形状。 在一些实施例中，不可移除的引导构件的长度可以是可调节的，使得操作者可以在插入球囊导管之前调节不可移除的引导构件的长度。
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公开(公告)号：US06994689B1
公开(公告)日：2006-02-07
申请号：US09636278
申请日：2000-08-10
CPC分类号： A61B17/12109 , A61B17/12022 , A61B17/1204 , A61B17/12172 , A61B2017/1205 , A61F2/013 , A61F2002/016 , A61F2002/018 , A61F2002/30095 , A61F2210/0023 , A61F2230/0065 , A61F2230/0069 , A61F2230/0076 , A61F2230/008 , A61F2230/0091
摘要： A device for occluding a vessel employs one of a number of different expansion members joined to one or more elongate members. The expansion member may include a braid, one or more coils, ribs, a ribbon-like structure, a slotted tube, or a filter-like mesh. If the expansion member is enclosed by a suitable membrane, the device seals with the vessel wall to partially or completely occlude the vessel. A perforated membrane may be used to permit the perfusion of blood. The expansion member may be self-expanding, or it may be expanded by engaging it with one of the elongate members. Alternatively, the expansion member may be expanded by heating it.
摘要翻译： 用于封闭容器的装置采用与一个或多个细长构件连接的多个不同的膨胀构件中的一个。 膨胀构件可以包括编织物，一个或多个线圈，肋，带状结构，开槽管或过滤器状网。 如果膨胀构件被合适的膜封闭，则装置与容器壁密封以部分地或完全地封闭容器。 穿孔膜可用于允许血液灌注。 膨胀构件可以是自膨胀的，或者可以通过使其与细长构件之一接合而膨胀。 或者，可以通过加热来膨胀膨胀构件。
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公开(公告)号：US06293924B1
公开(公告)日：2001-09-25
申请号：US09493888
申请日：2000-01-28
IPC分类号： A61M2900
CPC分类号： A61M25/1011 , A61M25/1027 , A61M25/1029 , A61M25/104 , A61M2025/1059 , A61M2025/1072
摘要： A dilatation or other similar catheter for intraluminal use which has an elongated shaft and an inflatable member or section on the distal extremity of the catheter shaft which has multiple working sections, a first working section which elastically expands upon inflation to a first pressure within a first pressure range and a second working section which elastically expands upon inflation to a second pressure within a second pressure range which is at least in part higher than the first pressure range. The first working section may be inflated to secure the catheter within the body lumen and then the second working section may be inflated to dilatate the body lumen.
摘要翻译： 一种用于管腔内使用的扩张或其它类似的导管，其具有细长轴和在导管轴的远端上的可膨胀构件或部分，其具有多个工作部分，第一工作部分，其在充气时弹性膨胀至第一压力 压力范围和第二工作部分，其在充气时弹性膨胀到在至少部分高于第一压力范围的第二压力范围内的第二压力。 第一工作部分可以被充气以将导管固定在体腔中，然后第二工作部分可以被充气以使体腔膨胀。
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公开(公告)号：US06273878B1
公开(公告)日：2001-08-14
申请号：US09383103
申请日：1999-08-25
申请人： Ketan P. Muni
发明人： Ketan P. Muni
IPC分类号： A61M532
CPC分类号： A61M25/1036 , A61M25/104 , A61M2025/0046 , A61M2025/1079
摘要： Several improvements are provided in the design of a catheter shaft to reduce costs and improve performance. In one aspect, a small notch is fabricated into a catheter tube by a nonlaser process such as electric discharge machining (EDM) or mechanical grinding. This notch in the catheter tube is necessary for fluid communication between the catheter lumen and a balloon or other element in communication with the tube. Use of a nonlaser process reduces the costs of fabrication while ensuring a high degree of structure integrity. In another aspect, a method is provided to produce a nonuniform polymer coating on a catheter shaft to reduce friction and to maintain a catheter with a low profile. In another aspect, the catheter is provided with a radiopaque marker which is more visible and is more effective at identifying the location of a balloon. The marker is moved closer to a distal balloon by placing it within an adhesive taper adjacent the balloon.
摘要翻译： 在导管轴的设计中提供了若干改进以降低成本并提高性能。 在一个方面，通过诸如放电加工（EDM）或机械研磨的非激光工艺将小凹口制成导管管。 导管中的该缺口对于导管内腔和与管连通的球囊或其它元件之间的流体连通是必需的。 使用非激光工艺可以降低制造成本，同时确保高度的结构完整性。 在另一方面，提供了一种在导管轴上产生不均匀聚合物涂层以减少摩擦并保持具有低轮廓的导管的方法。 在另一方面，导管设置有不透射线的标记，其更可见并且在识别球囊的位置方面更有效。 通过将标记物放置在邻近气囊的粘合剂锥度内，将标记移动到更靠近远端球囊。
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公开(公告)号：US06228072B1
公开(公告)日：2001-05-08
申请号：US09026105
申请日：1998-02-19
IPC分类号： A61M2500
CPC分类号： A61M25/1036 , A61M25/104 , A61M2025/0046 , A61M2025/1079
摘要： Several improvements are provided in the design of a catheter shaft to reduce costs and improve performance. In one aspect, a small notch is fabricated into a catheter tube by a nonlaser process such as electric discharge machining (EDM) or mechanical grinding. This notch in the catheter tube is necessary for fluid communication between the catheter lumen and a balloon or other element in communication with the tube. Use of a nonlaser process reduces the costs of fabrication while ensuring a high degree of structure integrity. In another aspect, a method is provided to produce a nonuniform polymer coating on a catheter shaft to reduce friction and to maintain a catheter with a low profile. In another aspect, the catheter is provided with a radiopaque marker which is more visible and is more effective at identifying the location of a balloon. The marker is moved closer to a distal balloon by placing it within an adhesive taper adjacent the balloon.
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公开(公告)号：US06217567B1
公开(公告)日：2001-04-17
申请号：US09415607
申请日：1999-10-08
IPC分类号： A61M2500
CPC分类号： A61M25/10 , A61M25/09 , A61M2025/09008 , A61M2025/09141 , A61M2025/09175 , A61M2025/09183 , A61M2025/1052
摘要： The present invention provides an apparatus for performing angioplasty or vascular intervention procedures. The apparatus of the present invention comprises a catheter apparatus comprised of a superelastic hollow guidewire, a balloon member and a flexible tip. The superelastic hollow guidewire of the invention is preferably a hypotube of nitinol alloy. The use of nitinol alloy as hollow guidewire provides a catheter apparatus having high flexibility and torqueability as well as small cross sectional diameter.
摘要翻译： 本发明提供一种用于进行血管成形术或血管介入手术的装置。 本发明的装置包括由超弹性中空导丝，球囊构件和柔性尖端构成的导管装置。 本发明的超弹性中空导丝优选为镍钛合金的海波管。 使用镍钛诺合金作为中空导线提供了具有高柔性和可逆性以及小截面直径的导管装置。
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公开(公告)号：US6068623A
公开(公告)日：2000-05-30
申请号：US812876
申请日：1997-03-06
CPC分类号： A61M25/10 , A61M25/09 , A61M2025/09008 , A61M2025/09141 , A61M2025/09175 , A61M2025/09183 , A61M2025/1052
摘要： The present invention provides an apparatus for performing angioplasty or vascular intervention procedures. The apparatus of the present invention comprises a catheter apparatus comprised of a superelastic hollow guidewire, a balloon member and a flexible tip. The superelastic hollow guidewire of the invention is preferably a hypotube of nitinol alloy. The use of nitinol alloy as hollow guidewire provides a catheter apparatus having high flexibility and torqueability as well as small cross sectional diameter.
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