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22 条记录 (耗时 0.02 秒)

    Catheter system for treating a vascular occlusion
    5.
    发明授权
    Catheter system for treating a vascular occlusion 失效

    公开(公告)号：US06398798B1

    公开(公告)日：2002-06-04

    申请号：US09032773

    申请日：1998-02-28

    申请人： Matthew R. Selmon ,  Gerald Hansen ,  Charles Milo

    发明人： Matthew R. Selmon ,  Gerald Hansen ,  Charles Milo

    IPC分类号： A61B1722

    摘要： A catherer system and method are provided including a blunt end assembly with a catheter and a blunt end member. The blunt end member includes jaw sections which have a first position or closed position for locating the blunt end member at the site of the occlusion within the native lumen of the blood vessel and a second position or open position wherein the jaw sections are able to press against the interior walls of the lumen adjacent the occlusion. The assembly includes an actuation member for moving the jaw sections from the closed to the open positions repeatedly resulting in a fracturing of the occlusion. A guide wire may be thread through an internal opening in the catheter and the blunt end member and after fracturing, across the occlusion.

    Protective sheath for a fiberoptic image guide within an articulated endoscope
    6.
    发明授权
    Protective sheath for a fiberoptic image guide within an articulated endoscope 失效
    铰链内窥镜内光纤图像引导件的保护护套

    公开(公告)号：US5704899A

    公开(公告)日：1998-01-06

    申请号：US541987

    申请日：1995-10-10

    申请人： Charles Milo

    发明人： Charles Milo

    IPC分类号： A61B1/005 ,  B29C47/00 ,  A61B1/06

    CPC分类号： A61B1/0056 ,  B29C47/0014 ,  B29C47/00

    摘要： An improved endoscope prevents abrasion of a fiberoptic image guide with a braid reinforced sheath. Abrasion of fiberoptic image guides within articulating endoscopes quickly wear through a conventional fiberoptic mantle, decreasing the useful life of the endoscope. Preferably, the sheath comprises a metal braid disposed within a polyimide, which effectively protects the image guide from abrasion against the endoscope components and substantially extends useful life.

    摘要翻译： 改进的内窥镜防止光纤图像引导件与编织增强护套的磨损。 关节内窥镜内光纤图像引导件的磨损通过传统的光纤套管快速磨损，从而降低了内窥镜的使用寿命。 优选地，护套包括设置在聚酰亚胺内的金属编织物，其有效地保护图像引导件免受内窥镜部件的磨损并且基本上延长了使用寿命。

    Imaging atherectomy apparatus
    7.
    发明授权
    Imaging atherectomy apparatus 失效
    成像粥样斑块切除术

    公开(公告)号：US5429136A

    公开(公告)日：1995-07-04

    申请号：US91160

    申请日：1993-07-13

    申请人： Charles Milo ,  Gerald Hansen ,  Fred H. Co

    发明人： Charles Milo ,  Gerald Hansen ,  Fred H. Co

    IPC分类号： A61B8/12 ,  A61B17/22 ,  A61B19/00

    CPC分类号： A61B17/320783 ,  A61B8/12 ,  A61B8/445 ,  A61B2017/22038 ,  A61B2017/22052 ,  A61B2017/22075 ,  A61B2090/378

    摘要： An atherectomy catheter having ultrasound imaging capability provided by an acoustic transducer disposed within a catheter housing which includes a circular cutting edge for removal of stenotic tissue. Risk of induced emboli is reduced by arrangements of transducer and cutter maneuvering members which permit the cutting edge to remain shielded by the housing during catheter positioning and scanning. Both single and array transducers are employed in a variety of configurations.

    摘要翻译： 一种具有超声成像能力的粥样斑块切除术导管，其由设置在导管外壳内的声学换能器提供，其包括用于移除狭窄组织的圆形切割边缘。 在导管定位和扫描期间，通过传感器和切割器操纵构件的布置可以减少诱发栓塞的危险，从而允许切割边缘保持被壳体屏蔽。 单个和阵列换能器都采用各种配置。

    Composite atherectomy cutter
    8.
    发明授权
    Composite atherectomy cutter 失效
    复合粥样斑块切割刀

    公开(公告)号：US06120515A

    公开(公告)日：2000-09-19

    申请号：US895106

    申请日：1997-07-16

    申请人： Larry Rogers ,  John Thomas Buckley ,  Ron Ray Hundertmark ,  Ferolyn T. Powell ,  Charles Milo ,  Anthony J. Castro

    发明人： Larry Rogers ,  John Thomas Buckley ,  Ron Ray Hundertmark ,  Ferolyn T. Powell ,  Charles Milo ,  Anthony J. Castro

    IPC分类号： A61B17/22 ,  A61B19/00 ,  A61M29/00 ,  A61B17/00

    CPC分类号： A61B17/320783 ,  A61B17/320758 ,  A61B2090/3784

    摘要： An athetectomy catheter is disclosed having a composite cutter which is capable of cutting material, including hardened plaque, from a biological conduit. The composite cutter has a cutter and a sensor mount. The cutter has a proximal end and a distal end with a cutting edge. The proximal end of the cutter bonds with the sensor mount. The sensor mount is adaptable for holding a sensor and attaching to a cutter torque cable of an atherectomy catheter. Typically, the atherectomy catheter has a cutter housing with a window. The composite cutter is positioned in the cutter housing and moves in response to movement of the cutter torque cable to cut material from the biological conduit via the window.

    摘要翻译： 公开了一种具有能够从生物导管切割包括硬化斑块的材料的复合切割器的切除术导管。 复合切割机具有切割器和传感器支架。 切割器具有近端和具有切割边缘的远端。 切割器的近端与传感器支架接合。 传感器安装座适用于固定传感器并连接到粥样斑块切除术导管的切割扭矩电缆。 通常，粥样斑块切除术导管具有带窗口的切割器壳体。 复合切割器定位在切割器壳体中并且响应于切割扭矩电缆的移动而移动，以经由窗口从生物导管切割材料。

    Manual actuator for a catheter system for treating a vascular occlusion
    9.
    发明授权
    Manual actuator for a catheter system for treating a vascular occlusion 失效
    用于治疗血管闭塞的导管系统的手动致动器

    公开(公告)号：US5741270A

    公开(公告)日：1998-04-21

    申请号：US808092

    申请日：1997-02-28

    申请人： Gerald Hansen ,  E. Richard Hill, III ,  Charles Milo

    发明人： Gerald Hansen ,  E. Richard Hill, III ,  Charles Milo

    IPC分类号： A61B17/00 ,  A61B17/22 ,  A61B17/28 ,  A61F11/00

    CPC分类号： A61B17/2909 ,  A61B17/32075 ,  A61B2017/00469 ,  A61B2017/2918

    摘要： Disclosed herein is manual actuator for retracting and advancing a therapeutic working element of an intravascular catheter system via an actuation shaft or one or more pulling wires. The manual actuator includes a hollow cylindrical bracing member having an open proximal end and a distal end, and a hollow cylindrical retracting member, the retracting member being slidable, in a telescoping fashion, into the open proximal end of the bracing member. An actuation shaft is secured near to the proximal end of the retracting member and the distal end of the actuation shaft is secured to the therapeutic working element. Alternatively, at least one pulling wire is secured proximal to the proximal end of the retracting member. The distal end of the pulling wire is secured to the therapeutic working element. At least one resilient connecting member has a proximal end attached proximate the proximal end of the retracting member, and a distal end attached proximate the distal end of the bracing member. When a manually applied external force is applied by the physician to the resilient connecting members, the resilient connecting members urge the retracting member in a proximal direction with respect to the bracing member, and retracting the actuation shaft to thereby operate the working element of the catheter system. Alternatively, the retracting member is urged in the proximal direction by the manually applied external force and the pulling wires transmit this force to the therapeutic working element.

    摘要翻译： 这里公开了用于通过致动轴或一个或多个牵引线回缩和推进血管内导管系统的治疗工作元件的手动致动器。 手动致动器包括具有开口近端和远端的中空圆柱形支撑构件和中空圆柱形缩回构件，缩回构件可以伸缩方式滑动到支撑构件的开放近端中。 致动轴固定在靠近收缩构件的近端并且致动轴的远端固定到治疗工作元件。 或者，至少一个拉线被固定在靠近收缩构件的近端的位置。 拉线的远端固定在治疗工作元件上。 至少一个弹性连接构件具有靠近缩回构件的近端附近的近端，以及靠近支撑构件的远端附近的远端。 当医师将手动施加的外力施加到弹性连接构件时，弹性连接构件相对于支撑构件在近端方向上推动缩回构件，并且使致动轴缩回从而操作导管的工作元件 系统。 或者，缩回构件通过手动施加的外力在近端方向被推压，并且牵引线将该力传递到治疗工作元件。

    Optical encoder for catheter device
    10.
    发明授权
    Optical encoder for catheter device 失效
    用于导管装置的光学编码器

    公开(公告)号：US5427107A

    公开(公告)日：1995-06-27

    申请号：US163248

    申请日：1993-12-07

    申请人： Charles Milo ,  Gerald L. Hansen

    发明人： Charles Milo ,  Gerald L. Hansen

    IPC分类号： A61B8/12

    CPC分类号： A61B8/12 ,  A61B8/445 ,  A61B8/4461

    摘要： Disclosed herein is a catheter apparatus which supports high resolution imaging of the interior of a biological conduit. The apparatus includes an imaging atherectomy catheter of the type having a cutter housing attached to the distal end of a catheter. A tissue cutting member and an ultrasonic imaging transducer are disposed within the housing and are secured to the distal end of a rotatable torque cable. An elongated aperture formed along one side of the housing allows ultrasonic imaging and the intrusion of stenotic material which is removed by axially rotating and translating the cutting member. A miniature rotary encoder is slidably coupled to the end of the torque cable within the housing for precisely determining the rotational orientation of the ultrasonic imaging transducer with respect to the elongated aperture. The rotary encoder is read optically via a fiber optical cable which extends through the catheter. Placement of the rotary encoder at the imaging transducer overcomes distortions resulting from instantaneous speed variations between the two ends of the torque cable. The accurate rotational information permits use of ultrasonic imaging transducers having resolution better than 100 microns without significant image distortion.

    摘要翻译： 本文公开了一种支持生物导管内部的高分辨率成像的导管装置。 该装置包括具有连接到导管的远端的切割器壳体的类型的成像粥样斑块切除术导管。 组织切割构件和超声波成像换能器设置在壳体内并且固定到可旋转扭矩电缆的远端。 沿着壳体的一侧形成的细长孔允许超声成像和通过轴向旋转和平移切割构件而移除的狭窄材料的侵入。 微型旋转编码器可滑动地联接到壳体内的转矩电缆的端部，用于精确地确定超声波成像换能器相对于细长孔的旋转取向。 旋转编码器通过延伸穿过导管的光纤光缆光学读取。 旋转编码器在成像传感器处的放置克服了扭矩电缆两端之间的瞬时速度变化引起的扭曲。 精确的旋转信息允许使用具有优于100微米的分辨率的超声成像换能器，而没有显着的图像失真。