High performance braided catheter
    31.
    发明授权
    High performance braided catheter 失效
    高性能编织导管

    公开(公告)号:US6143013A

    公开(公告)日:2000-11-07

    申请号:US641259

    申请日:1996-04-30

    IPC分类号: A61M25/00 A61M25/16 A61M29/00

    摘要: This is a catheter assembly and a section of that catheter assembly. That catheter assembly may be used in accessing a tissue target within the body, typically a target which is accessible through the vascular system. Central to the invention is the use of a braided metallic reinforcing member, typically of super-elastic alloy ribbon, situated within the catheter body in such a way to create a catheter having an exceptionally thin wall, controlled stiffness, high resistance to kinking, and complete recovery in vivo from kinking situations. The braid may have a single pitch or may vary in pitch along the axis of the catheter or catheter section. The braided ribbon reinforcing member typically is placed between a flexible outer tubing member and an inner tubing member to produce a catheter section which is very flexible but highly kink resistant. The catheter sections made according to this invention may be used alone or in conjunction with other catheter sections either made using the concepts shown herein or made in other ways. The more proximal sections of the catheter assembly are often substantially stiffer than the more distal sections due to the presence of stiff polymeric tubing or metallic tubing or composited materials in the stiffer section.

    摘要翻译: 这是导管组件和导管组件的一部分。 该导管组件可用于进入体内的组织靶,通常是通过血管系统可接近的靶。 本发明的中心是使用位于导管主体内的编织金属加强构件,通常为超弹性合金带,以形成具有特别薄壁,受控刚度,高抗扭结性的导管,以及 从扭结情况完全恢复体内。 编织物可以具有单个间距,或者可以沿着导管或导管部分的轴线变化。 编织带加强构件通常放置在柔性外管构件和内管构件之间以产生非常柔性但高度扭结的导管部分。 根据本发明制造的导管部分可以单独使用或与使用本文所示的概念或以其他方式制成的其它导管部分结合使用。 由于在刚性部分中存在刚性聚合物管或金属管或合成材料,所以导管组件的近端部分通常比较远的部分更坚硬。

    Guide catheter with enhanced guidewire tracking
    34.
    发明授权
    Guide catheter with enhanced guidewire tracking 失效
    导丝导管增强导丝跟踪

    公开(公告)号:US5971975A

    公开(公告)日:1999-10-26

    申请号:US729237

    申请日:1996-10-09

    IPC分类号: A61M25/00 A61M25/09

    CPC分类号: A61M25/0054

    摘要: This is a guide catheter assembly. The guide catheter assembly is used to cooperate with a micro-catheter in accessing a tissue target within the body, typically a target which is accessible through the vascular system. Central to the invention is the use of a braided metallic reinforcing member, situated within the catheter body in such a way to create a catheter section having an exceptionally thin wall, controlled stiffness, and high resistance to kinking. The catheter has a terminal segment which is not supported by a braid and the polymer making up that terminal segment is either the same hardness as is the polymer making up the outer covering of next more adjacent section or, preferably, the polymer is harder than is the polymer making up the segment located just proximally of that terminal segment. The braid may have a single pitch or may vary in pitch along the axis of the catheter or catheter section. The braided reinforcing member typically is embedded in a flexible outer tubing member. An inner tubing member is lubricious.

    摘要翻译: 这是导管组件。 引导导管组件用于与微导管配合以接近体内的组织靶,通常是通过血管系统可接近的靶。 本发明的中心是使用编织金属加强构件,其以这样的方式设置在导管主体内,以形成具有非常薄的壁,受控刚度和高耐扭结的导管部分。 导管具有不由编织物支撑的端子段,并且构成该端子段的聚合物与构成下一个相邻区段的外覆层的聚合物的硬度相同,或者优选地,聚合物比 构成该片段的聚合物位于该末端片段的近侧。 编织物可以具有单个间距,或者可以沿着导管或导管部分的轴线变化。 编织加强构件通常嵌入在柔性外管构件中。 内管件是润滑的。

    Braided body balloon catheter
    35.
    发明授权
    Braided body balloon catheter 失效
    编织体气囊导管

    公开(公告)号:US5906606A

    公开(公告)日:1999-05-25

    申请号:US607847

    申请日:1996-02-27

    IPC分类号: A61F2/958 A61M25/00

    摘要: This is a balloon catheter having braided layer which extends generally from the proximal end of the catheter to a location distal of the balloon. In particular, it is desirable that the shaft of the catheter proximal of the balloon be stiffest at the proximal section and least stiff just proximal of the balloon. Although the catheter may be a single lumen catheter using some type of a core wire to act as a valve for inflation and deflation of the balloon, it is within the scope of the invention to include either a separate inflation/deflation lumen or one incorporated into the various concentric polymeric layers used to make up the proximal shaft. Particularly preferred is the use of an elastic, compliant balloon.

    摘要翻译: 这是具有编织层的球囊导管,其通常从导管的近端延伸到气囊的远侧的位置。 特别地,期望球囊近端的导管的轴在近端部分处是最刚性的,并且最接近刚好在气囊附近。 尽管导管可以是使用某种类型的芯线作为气囊充气和放气的阀的单腔导管,但是在本发明的范围内还包括单独的充气/放气管腔或并入 用于构成近端轴的各种同心聚合物层。 特别优选的是使用弹性的柔顺气球。

    Stretch resistant vaso-occlusive coils
    37.
    发明授权
    Stretch resistant vaso-occlusive coils 失效
    抗拉伸血管闭塞线圈

    公开(公告)号:US5833705A

    公开(公告)日:1998-11-10

    申请号:US717285

    申请日:1996-09-20

    摘要: This is an implantable vaso-occlusive device. It is typically a vaso-occlusive coil comprised of a primary helically wound coil which may then be wound into a secondary shape. Central to the invention is the use of a stretch-resisting member fixedly attached within at least a portion of the primary coil. The stretch-resisting member may be formed into coil tips at the ends of the coil by melting the polymeric fibers or alloys or by attaching the fibers with a glue. This stretch-resisting member is for the primary purpose of preventing stretching of the coil during movement of that coil, e.g., by retrieval or repositioning after deployment. The device typically has a self-forming secondary shape made from a pre-formed primary linear helically wound coil, although it need not have the secondary form. External fibers may be attached to the device and affixed to the pre-formed linear member to increase. The vaso-occlusive member may be also be covered with a fibrous braid. The device is typically introduced into the body through a catheter. The device is passed axially through the catheter sheath and assumes its secondary form upon exiting the catheter.

    摘要翻译: 这是一种植入式血管闭塞装置。 通常是由初级螺旋缠绕线圈组成的血管闭塞线圈,然后可以将其卷绕成次级形状。 本发明的中心是使用固定地附接在初级线圈的至少一部分中的拉伸抵抗构件。 拉伸阻力构件可以通过熔化聚合物纤维或合金或通过用胶粘附纤维而在线圈的端部形成线圈尖端。 该抗拉伸构件的主要目的是防止在线圈移动过程中线圈的拉伸,例如通过在展开后的取回或重新定位。 该装置通常具有由预先形成的初级线性螺旋缠绕线圈制成的自成形次级形状,尽管它不需要具有二次形式。 外部纤维可以附接到装置并固定到预先形成的线性构件上以增加。 血管闭塞性构件也可以用纤维编织物覆盖。 该装置通常通过导管引入身体。 该装置轴向穿过导管护套,并在离开导管时呈现其次级形式。

    Multi-coating stainless steel guidewire

    公开(公告)号:US5722424A

    公开(公告)日:1998-03-03

    申请号:US535806

    申请日:1995-09-29

    申请人: Erik T. Engelson

    发明人: Erik T. Engelson

    摘要: This is a surgical instrument. It is a guidewire made of a stainless steel alloy core which is coated with a non-hydrophilic lubricious polymer on the majority of its length located proximally and a hydrophilic polymer located at the majority of the remaining distal length of the guidewire. Preferably, the guidewire has a polymeric tie layer located between the metallic core of the guidewire assembly and the hydrophilic polymeric layer. The metallic core is one of a number of stainless steels so to preserve its torque transmitting capabilities. Desirably the outside diameter of the guidewire is constant from the distal end to the proximal end. The metallic core may be tapered at appropriate locations along the guidewire assembly.

    Composite Braided Guidewire
    40.
    发明申请
    Composite Braided Guidewire 审中-公开
    复合编织导丝

    公开(公告)号:US20110144625A1

    公开(公告)日:2011-06-16

    申请号:US13022360

    申请日:2011-02-07

    IPC分类号: A61M25/09

    CPC分类号: A61M25/09 A61M2025/09175

    摘要: This is a composite guidewire for use with a catheter for accessing a targeted site in a lumen system of a patient's body. The guidewire core or guidewire section may be of a stainless steel or a high elasticity metal alloy, preferably a Ni—Ti alloy, also preferably having specified physical parameters. The composite guidewire assembly is especially useful for accessing peripheral or soft tissue targets. The invention includes multi-section guidewire assemblies having super-elastic alloy or stainless steel ribbon braided reinforcements along a least a portion of the core. A variation of the inventive guidewire includes a braid and a tie layer (and one or more lubricious polymers on the tie layer exterior) to enhance the guidewire's suitability for use within catheters and within the interior of vascular lumen.

    摘要翻译: 这是一种用于与用于进入患者身体的管腔系统中的目标部位的导管一起使用的复合导丝。 导丝芯或导丝部分可以是不锈钢或高弹性金属合金,优选Ni-Ti合金,也优选具有特定的物理参数。 复合导丝组件对于接近外周或软组织靶是特别有用的。 本发明包括具有沿着芯的至少一部分的超弹性合金或不锈钢丝带编织增强件的多段导丝组件。 本发明的导丝的变体包括编织物和连接层(以及在连接层外部的一种或多种润滑聚合物),以增强导丝线在导管内和血管内腔内的适用性。