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132 条记录 (耗时 0.017 秒)

    Expandable flowrate catheter assembly and method of making same
    71.
    发明授权
    Expandable flowrate catheter assembly and method of making same 失效
    可膨胀流量导管组件及其制造方法

    公开(公告)号：US5925301A

    公开(公告)日：1999-07-20

    申请号：US786423

    申请日：1997-01-21

    申请人： Kirk Johnson ,  Stephen J. Querns

    发明人： Kirk Johnson ,  Stephen J. Querns

    IPC分类号： A61M25/00 ,  A61M31/00 ,  B29C65/00 ,  B32B31/20

    CPC分类号： A61M31/005 ,  A61M25/00 ,  A61M25/0009 ,  A61M2025/0004 ,  A61M2025/0025 ,  A61M2025/0035 ,  A61M25/007

    摘要： A catheter assembly is provided for delivering a diagnostic fluid to a diagnostic site within the vascular system of a patient comprising an elongated central tube that can be routed into and through a vascular system of a patient, the tube including a tube proximal end and a tube distal end, a flexible sleeve defining a space between the interior surface of the sleeve and an exterior surface of the central tube, the sleeve comprising a sleeve proximal end sealably connected to the exterior circumference of the central tube. The sleeve extends along a length of the central tube from the sleeve proximal end to a sleeve distal end, the central tube defining one or more openings that extend through a wall of the central tube so that the interior of the central tube is in fluid communication with the interior of the sleeve.

    摘要翻译： 提供了一种导管组件，用于将诊断流体输送到患者的血管系统内的诊断部位，所述诊断部位包括细长的中心管，所述细长的中心管能够穿过并通过患者的血管系统，所述管包括管近端和管 远端，柔性套管，其在所述套筒的内表面和所述中心管的外表面之间限定空间，所述套筒包括密封地连接到所述中心管的外周的套筒近端。 套筒沿着中心管的长度从套筒近端延伸到套管远端，中心管限定一个或多个穿过中心管的壁的开口，使得中心管的内部处于流体连通 与袖子的内部。

    Method for establishing collapsible infusion conduit
    72.
    发明授权
    Method for establishing collapsible infusion conduit 失效
    建立可折叠输液管道的方法

    公开(公告)号：US5618267A

    公开(公告)日：1997-04-08

    申请号：US539991

    申请日：1995-10-06

    申请人： Aubrey M. Palestrant

    发明人： Aubrey M. Palestrant

    IPC分类号： A61M25/00 ,  A61M39/08 ,  A61M31/00

    CPC分类号： A61M25/0023 ,  A61M25/0021 ,  A61M39/08 ,  A61M2025/0025 ,  A61M2025/0035 ,  A61M25/003 ,  A61M25/0043

    摘要： An apparatus and method for establishing a collapsible infusion conduit in a blood vessel includes a catheter formed as a normally-flattened tube of flexible, collapsible plastic. When placed in a blood vessel, the catheter collapses to a flattened configuration for lying along the wall of the blood vessel to avoid obstruction to blood flow. During infusion, infusion fluid expands the catheter to a generally oval flow path. The catheter may be initially placed in the blood vessel by pre-loading the catheter over a guide wire and inserting the catheter and guide wire through an introducer sheath into the blood vessel. Infusion fluid is thereafter applied to the trailing end of the catheter to expand the catheter to facilitate withdrawal of the guide wire. Alternatively, the leading end of the catheter may initially be sealed, and placement into the blood vessel is achieved through an introducer sheath by inflating the catheter with pressurized fluid to temporarily render the catheter rigid and generally oval. The seal at the leading end of the catheter is thereafter opened, either by inserting a guide wire into the catheter to pierce the sealed end, or by increasing the inflation pressure to burst a weakened break line formed at the leading end of the catheter.

    摘要翻译： 用于在血管中建立可折叠输液导管的装置和方法包括形成为柔性可折叠塑料的普通扁平管的导管。 当放置在血管中时，导管塌陷成扁平结构以沿着血管的壁放置，以避免阻塞血流。 在输注期间，输注液将导管膨胀至一般椭圆形的流动路径。 可以通过将导管预先装载在导丝上并将导管和导丝穿过导引器鞘插入血管中来将导管最初放置在血管中。 此后，将输液施加到导管的尾端以使导管膨胀以便于引导线的取出。 或者，导管的前端可以最初被密封，并且通过使用加压流体对导管进行充气来临时使导管刚性并且通常为椭圆形，通过引导器护套来实现放置到血管中。 然后通过将导丝插入导管以刺穿密封端，或者通过增加充气压力来破裂在导管的前端形成的弱化断裂线，打开导管前端的密封。

    Bailout catheter for fixed wire angioplasty
    73.
    发明授权
    Bailout catheter for fixed wire angioplasty 失效
    救生导管用于固定线血管成形术

    公开(公告)号：US5263932A

    公开(公告)日：1993-11-23

    申请号：US865975

    申请日：1992-04-09

    申请人： G. David Jang

    发明人： G. David Jang

    IPC分类号： A61M25/00 ,  A61M29/02 ,  A61M29/00

    CPC分类号： A61M25/104 ,  A61M25/0023 ,  A61M2025/0035 ,  A61M2025/0177 ,  A61M2025/0183 ,  A61M2025/107 ,  A61M25/0029

    摘要： An angioplasty catheter, comprising a catheter shaft having a proximal end and a distal end, with a balloon inflation lumen extending therethrough, a fixed, steerable torquewire extending through at least a portion of the shaft and out of the distal end thereof, an angioplasty balloon on the distal end of the catheter operatively communicating with the balloon inflation lumen for inflation and deflation of the balloon, wherein the proximal end of the balloon is attached to the distal end of the catheter shaft and the distal end of the balloon is attached to the torquewire, and a bailout lumen extending along the catheter shaft from a point ordinarily outside the patient during use to a point proximal of the balloon and normally inside the patient during such use, the bailout lumen adapted to receive a removable guidewire and having an outer wall, with the outer wall preferably including a means such as a longitudinally extending slit for laterally removing the catheter from the patient and off of the guidewire while maintaining the position of the guidewire in the patient, and optionally including a side port through the outer wall of the bailout lumen through which a guidewire can be inserted. Methods for using the catheter are also disclosed.

    摘要翻译： 一种血管成形术导管，包括具有近端和远端的导管轴，其中延伸穿过其中的球囊膨胀腔，延伸穿过所述轴的至少一部分并且远离其远端的固定的可操纵的扭管，血管成形术气囊 在所述导管的远端处可操作地与球囊充气腔连通，以使气囊膨胀和放气，其中气囊的近端附接到导管轴的远端，并且气囊的远端附接到 以及在使用期间通常在患者外部的点延伸到导管轴的救护腔，并且在这种使用期间通常在患者体内正常的内部，救生腔适于接收可移除的导丝并且具有外壁 外壁优选地包括诸如纵向延伸狭缝的装置，用于从患者侧向移除导管 并且在保持导线在患者体内的位置的同时脱离导线，并且可选地包括通过可以插入导线的救护内腔的外壁的侧端口。 还公开了使用导管的方法。

    Catheter with tapered self-introducing low-recirculation distal tip
    77.
    发明授权
    Catheter with tapered self-introducing low-recirculation distal tip 有权

    公开(公告)号：US11684749B2

    公开(公告)日：2023-06-27

    申请号：US16559978

    申请日：2019-09-04

    申请人： Medical Components, Inc.

    发明人： Burton W. Thomas ,  Joshua L. Ballard ,  Jeffrey S. Bennett ,  John M. Stephens

    IPC分类号： A61M25/00

    CPC分类号： A61M25/0068 ,  A61M25/003 ,  A61M2025/0031 ,  A61M2025/0035 ,  A61M2025/0073

    摘要： Disclosed is a multi-lumen catheter having a distal end catheter tip configured to improve fluid flow into and out from the catheter tip while reducing undesired recirculation during hemodialysis treatment of a patient. A first lumen and a second lumen each extends from the catheter proximal end to the catheter distal end, the first lumen and the second lumen being parallel to each other. A septum having a first side and a second side separates the first lumen from the second lumen. Some embodiments of the catheter tip include a beveled shape region, having a first lumen orifice, a second lumen orifice, and a septum top surface. Within the beveled shape region, at least a portion of the septum first side and at least a portion of the septum top surface form a first eave over the first lumen and at least a portion of the septum second side and at least a portion of the septum top surface form a second eave over the second lumen.

    Dialysis catheter
    80.
    发明授权
    Dialysis catheter 有权
    透析导管

    公开(公告)号：US09415187B2

    公开(公告)日：2016-08-16

    申请号：US13310014

    申请日：2011-12-02

    申请人： Charles W. Agnew

    发明人： Charles W. Agnew

    IPC分类号： A61M25/00 ,  A61M25/04 ,  A61M1/36

    CPC分类号： A61M25/0075 ,  A61M1/3653 ,  A61M1/3658 ,  A61M1/3659 ,  A61M1/3661 ,  A61M25/04 ,  A61M2025/0025 ,  A61M2025/0031 ,  A61M2025/0035 ,  A61M2025/0039 ,  A61M2025/0079

    摘要： A catheter assembly used for extracorporeal treatment, such as dialysis, of blood or other body fluid, includes an outer and inner catheter in a coaxial relationship. A fluid path is provided by a passageway defined between the catheters and a distal end of the outer catheter, and another fluid path is provided through a lumen and a distal end of the inner catheter. A sealing member is coupled to one of the catheters. The member in a first position is configured to permit the distal ends of the catheters to transport fluid, while in a second position the member is configured to inhibit at least one of the distal ends from transporting fluid. The sealing member may include a flared portion for enhance sealing. The sealing member may also have a portion extending outward from the catheters to position the distal ends away from vessel contact.

    摘要翻译： 用于体外治疗（例如透析，血液或其他体液）的导管组件包括同轴关系的外导管和内导管。 流体通道由限定在导管和外导管的远端之间的通道提供，并且另一流体路径通过内导管和内导管的远端提供。 密封构件联接到导管之一。 第一位置的构件构造成允许导管的远端输送流体，而在第二位置，构件被构造成阻止远端中的至少一个输送流体。 密封构件可以包括用于增强密封的扩口部分。 密封构件还可以具有从导管向外延伸的部分，以将远端远离血管接触。