Hot tip catheter
    1.
    发明授权
    Hot tip catheter 失效
    热尖导管

    公开(公告)号:US06190379B1

    公开(公告)日:2001-02-20

    申请号:US09115585

    申请日:1998-07-14

    IPC分类号: A61B1804

    摘要: A system and method for treating a stenosis or blockage in a bodily fluid passageway is described. The system includes a catheter and a controller for generating radio frequency energy along a pair of output lines, a monitoring circuit for monitoring the phase of the radio frequency energy along the output lines, and an impedance matching circuit for adjusting the output impedance of the generator so that it equals that of a load, e.g., the patient. The catheter includes a catheter body which is insertable into the bodily passageway and operatively connected to the controller. A lumen in the catheter body defines an opening and a stainless steel, metallic-plated mandril is disposed within the lumen so that a terminal end thereof extends through the opening and into the bodily passageway. An internal electrode is joined to the terminal end of the mandril, with the other end of the mandril operatively connected to one of the output lines for receiving the radio frequency energy produced by the generator and delivering such energy to the terminal end and the internal electrode. An external electrode in the form of a grounding pad is located externally of a patient so that when the radio frequency energy is delivered via the mandril to the internal electrode, the same causes or enables the capacitative heating of a stenosis. The method of the present invention relates to finding the most optimal position for placement of the catheter so that optimal power may be delivered to the stenosis.

    摘要翻译: 描述了用于治疗体液通道中的狭窄或阻塞的系统和方法。 该系统包括导管和用于沿着一对输出线产生射频能量的控制器,用于监测沿着输出线的射频能量相位的监视电路,以及用于调节发生器的输出阻抗的阻抗匹配电路 使其等于负载,例如患者。 导管包括可插入身体通道并可操作地连接到控制器的导管主体。 导管主体中的内腔限定开口,并且不锈钢,金属镀金的心轴设置在内腔内,使得其末端延伸穿过开口并进入身体通道。 内部电极连接到心轴的终端,其中心轴的另一端可操作地连接到输出线之一,用于接收由发电机产生的射频能量,并将这种能量传送到终端和内部电极 。 接地垫形式的外部电极位于患者的外部,使得当射频能量经由心轴输送到内部电极时,相同的原因或能够使狭窄的电容加热。 本发明的方法涉及找到用于放置导管的最佳位置,使得可以将最佳功率递送至狭窄。

    DEVICES AND METHODS FOR SMALL VESSEL ACCESS
    2.
    发明申请
    DEVICES AND METHODS FOR SMALL VESSEL ACCESS 审中-公开
    小型船舶接入设备及方法

    公开(公告)号:US20120116354A1

    公开(公告)日:2012-05-10

    申请号:US12941952

    申请日:2010-11-08

    申请人: Richard R. Heuser

    发明人: Richard R. Heuser

    IPC分类号: A61M25/00

    CPC分类号: A61M29/00 A61M2025/0687

    摘要: Disclosed herein are methods and devices for small-vessel access to the vasculature for vascular and cardiac procedures such as diagnostics and interventions, particularly methods and devices for radial, brachial, popliteal, pedal, carotid and/or axillary access to the vasculature. These methods and devices permit vascular and cardiac procedures to be carried out through small vessels, such as the radial or brachial arteries, with a reduced number of steps for the physician and reduced pain and trauma for the patient. As such, the devices and methods may improve a number of outcomes for the patient, such as by reducing the risk of bleeding complications and increasing the speed with which the patient resumes ambulation and other activities following the procedure.

    摘要翻译: 本文公开了用于小血管进入脉管系统以用于血管和心脏手术的方法和装置,例如诊断和干预,特别是用于径向,肱动脉,po,脚踏,颈动脉和/或腋窝接近脉管系统的方法和装置。 这些方法和装置允许血管和心脏手术通过诸如桡动脉或肱动脉的小血管进行,并减少医生的步数,并减轻患者的疼痛和创伤。 因此,装置和方法可以改善患者的许多结果,例如通过降低出血并发症的风险并增加患者恢复行走的速度和随后的其他活动。

    CATHETER GUIDEWIRE SYSTEM USING CONCENTRIC WIRES
    3.
    发明申请
    CATHETER GUIDEWIRE SYSTEM USING CONCENTRIC WIRES 审中-公开
    使用集束线的导管指南系统

    公开(公告)号:US20090012429A1

    公开(公告)日:2009-01-08

    申请号:US12140183

    申请日:2008-06-16

    申请人: Richard R. Heuser

    发明人: Richard R. Heuser

    IPC分类号: A61M25/09

    CPC分类号: A61M25/09 A61M25/01

    摘要: A catheterization guidewire system provides a first wire for percutaneous insertion in a blood vessel. The first wire may include a lumen running from one end to the other, and a handle adjacent the proximal end for manipulation of the first wire about and along a central axis. A second wire may be inserted in the blood vessel over the first wire, and may have a handle adjacent a proximal end. With the first and second wires coupled together, either of the handles of the first and second wires may be used to manipulate both wires. The wires may be manipulated relative to one another by simultaneous use of both handles. The first wire may have a rigidity selected to allow crossing of a bifurcation in the blood vessel. A third wire, which may also have a handle, may be inserted in the blood vessel over the second wire. A catheter for insertion over at least one of the first, second, and third wires may be provided with a balloon and a stent placement apparatus.

    摘要翻译: 导管引导系统提供用于在血管中经皮插入的第一线。 第一线可以包括从一端延伸到另一端的内腔,以及与近端相邻的手柄,用于围绕并沿着中心轴线操纵第一线。 第二线可以在第一线上的血管中插入,并且可以具有邻近近端的手柄。 通过将第一和第二导线耦合在一起,第一和第二导线的手柄中的任一个可用于操纵两条导线。 可以通过同时使用两个把手相对于彼此来操纵电线。 第一线可以具有选择的刚性以允许血管中的分叉交叉。 也可以具有手柄的第三线可以插入第二线上的血管中。 用于插入第一,第二和第三线中的至少一个的导管可以设置有气囊和支架放置装置。

    CATHETER INTRODUCER SYSTEM
    4.
    发明申请
    CATHETER INTRODUCER SYSTEM 审中-公开
    导管介绍系统

    公开(公告)号:US20080177249A1

    公开(公告)日:2008-07-24

    申请号:US11735734

    申请日:2007-04-16

    IPC分类号: A61M25/01

    摘要: Disclosed is an improved pointed instrument for insertion into blood vessels where an occlusion arises or terminates too closely to the insertion site for proper sheath placement. The pointed instrument exhibits supportive characteristics that allow for a sheath to be placed in an otherwise inaccessible insertion site. One embodiment of the present disclosure features a pointed instrument having a flexible portion, which is generally straight outside the body, but agglomerates once inside a blood vessel.

    摘要翻译: 公开了一种改进的用于插入血管的尖端器械,其中闭塞产生或终止于与插入位置太接近以适当的护套放置。 尖锐的器具表现出支持性特征,允许护套放置在另外不可接近的插入位置。 本公开的一个实施例的特征在于具有柔性部分的尖锐的器具,其通常在身体外部直线,但是一旦在血管内聚集。

    CONNECTION OF ADJACENT BLOOD VESSELS
    5.
    发明申请
    CONNECTION OF ADJACENT BLOOD VESSELS 审中-公开
    相邻血液容器的连接

    公开(公告)号:US20080161904A1

    公开(公告)日:2008-07-03

    申请号:US12050799

    申请日:2008-03-18

    IPC分类号: A61F2/06

    摘要: A catheter apparatus, tissue-engineered vessel and a method of using the tissue-engineered vessel are provided for the connection of two adjacent blood vessels. In some embodiments, the tissue engineered vessel may be affixed to a stent, or a stent may be inserted into an area to be treated first, and then the tissue-engineered vessel may be affixed to the stent. The tissue-engineered vessel may include a living adventitia, a decellularized internal membrane, and/or an endothelium.

    摘要翻译: 为了连接两个相邻的血管,提供导管装置,组织工程化血管和使用组织工程化血管的方法。 在一些实施例中,组织工程化血管可以固定到支架上,或者可以将支架首先插入待治疗的区域中,然后将组织工程化血管固定在支架上。 组织工程化血管可包括活的外膜,脱细胞的内膜和/或内皮。

    Catheter system for connecting adjacent blood vessels
    7.
    发明授权
    Catheter system for connecting adjacent blood vessels 有权
    用于连接相邻血管的导管系统

    公开(公告)号:US07374567B2

    公开(公告)日:2008-05-20

    申请号:US11340324

    申请日:2006-01-25

    申请人: Richard R. Heuser

    发明人: Richard R. Heuser

    IPC分类号: A61B17/34 A61B17/08

    摘要: A catheter system is provided for creating a fistula between blood vessels, using a first catheter with a piercing tool adjacent its distal end, and a second catheter with a receptor adjacent its distal end. The receptor includes an opening and a channel providing a guide surface for receiving the piercing tool. The receptor and piercing tool include one or more magnets to draw the piercing tool into the channel of the receptor. The piercing tool and the receptor are provided with a complementary configuration, such as a mating conical shapes. A third catheter may be provided with a double balloon for use in sealing off the fistula site. The piercing tool may be provided on a metal guidewire that includes a lumen with a distal opening. The piercing tool may include a base and a needle coupled to the base at a nominal angle of at least about 20-degrees. The piercing tool may be selectively moved between an extended position wherein the needle is positioned outside the guidewire at the nominal angle and a retracted position wherein the needle is positioned substantially within the guidewire.

    摘要翻译: 提供导管系统,用于在血管之间产生瘘管,使用具有邻近其远端的穿刺工具的第一导管和具有邻近其远端的受体的第二导管。 该接收器包括开口和通道,该通道提供用于接收穿孔工具的引导表面。 受体和刺穿工具包括一个或多个磁体,以将刺穿工具拉入受体的通道。 穿孔工具和接收器设置有互补配置,例如配合的圆锥形状。 第三导管可以设置有用于密封瘘位置的双气囊。 刺穿工具可以设置在包括具有远端开口的内腔的金属导丝上。 刺穿工具可以包括基部和以至少约20度的标称角度联接到基部的针。 刺穿工具可以选择性地在伸出位置之间移动,其中针以标称角度定位在导丝外部,并且缩回位置,其中针位于基本上在导丝内。

    Methods and apparatus for treating body tissues and bodily fluid vessels
    8.
    发明授权
    Methods and apparatus for treating body tissues and bodily fluid vessels 有权
    用于治疗身体组织和体液容器的方法和装置

    公开(公告)号:US07179250B2

    公开(公告)日:2007-02-20

    申请号:US10272317

    申请日:2002-10-15

    申请人: Richard R. Heuser

    发明人: Richard R. Heuser

    IPC分类号: A61M31/00

    摘要: According to a method of occluding a bodily fluid vessel, a catheter is provided that has a first passage. The first passage has an occlusion element housed therein. The catheter is positioned in the vessel, and the occlusion element is moved out of the passage and into the vessel to thereby occlude the vessel. A catheter is also disclosed that may be used with the above method.

    摘要翻译: 根据封闭体液容器的方法,提供具有第一通道的导管。 第一通道具有容纳在其中的遮挡元件。 导管定位在容器中,并且阻塞元件移出通道并进入容器中,从而封闭容器。 还公开了可以与上述方法一起使用的导管。

    Catheter for thermal evaluation of arteriosclerotic plaque
    9.
    发明授权
    Catheter for thermal evaluation of arteriosclerotic plaque 有权
    导管用于动脉硬化斑块的热评估

    公开(公告)号:US06536949B1

    公开(公告)日:2003-03-25

    申请号:US09521091

    申请日:2000-03-07

    申请人: Richard R. Heuser

    发明人: Richard R. Heuser

    IPC分类号: G01K702

    摘要: A device for percutaneous insertion into a fluid passageway of a human body, such as an artery is provided with one or more thermocouples disposed on a flexible, resilient wire lead and coupled to a temperature monitor. The wire lead includes a distal portion formed in a single, oval, looped shape or a double, ovoid or basket-like, looped shape with the thermocouples disposed on a side or tip of the shape. The wire lead is configured, e.g., by insertion in a guidewire, for slidable movement through the artery to an area of interest, e.g., at a buildup of arteriosclerotic plaque, on an inner surface of the artery, to bring the thermocouple into resiliently biased contact with the inner surface at the area of interest for measurement of the temperature there.

    摘要翻译: 用于经皮插入诸如动脉的人体的流体通道中的装置设置有设置在柔性弹性导线上并耦合到温度监测器的一个或多个热电偶。 线引线包括形成为单个,椭圆形环形或双,卵形或篮状环形形状的远端部分,其中热电偶设置在形状的一侧或尖端。 引线例如通过插入导丝中,可以通过动脉可滑动地移动到感兴趣的区域,例如在动脉内的表面上形成动脉硬化斑块,以使热电偶进入弹性偏置 与感兴趣区域的内表面接触,以测量那里的温度。

    Differential dilation stent and method of use
    10.
    发明授权
    Differential dilation stent and method of use 有权
    差异扩张支架及其使用方法

    公开(公告)号:US09301830B2

    公开(公告)日:2016-04-05

    申请号:US13422594

    申请日:2012-03-16

    IPC分类号: A61F2/06 A61F2/07 A61F2/89

    摘要: Embodiments herein provide differential dilation stents for use in percutaneous interventions, such as transluminal bypass procedures. In some embodiments, the stents may be used in the process of creating an arteriovenous (AV) fistula during a percutaneous bypass procedure, and such stents may have two or more specialized regions that are configured to adopt a predetermined diameter, shape, and/or tensile strength upon insertion in order to suit the needs of the vessel or procedure. The disclosed stents may be used for creating and/or maintaining an arterial/venous fistula for bypass of an occlusion in a cardiac artery using a cardiac vein, or the femoral artery, for example using the tibial or popliteal vein.

    摘要翻译: 本文的实施方案提供用于经皮干预的差异扩张支架,例如经腔旁路手术。 在一些实施例中,支架可用于在经皮旁路手术期间产生动静脉(AV)瘘的过程中,并且这种支架可具有被配置为采用预定直径,形状和/或形状的两个或更多个专门区域 插入时的拉伸强度,以适应船只或程序的需要。 所公开的支架可用于创建和/或维持动脉/静脉瘘,以使用心静脉或股动脉绕过心脏动脉闭塞,例如使用胫骨或al静脉。