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    Self-sealing vascular access device
    3.
    发明授权
    Self-sealing vascular access device 失效
    自密封血管通路装置

    公开(公告)号：US5728132A

    公开(公告)日：1998-03-17

    申请号：US629022

    申请日：1996-04-08

    申请人： Robert A. Van Tassel ,  David R. Holmes ,  Robert S. Schwartz

    发明人： Robert A. Van Tassel ,  David R. Holmes ,  Robert S. Schwartz

    IPC分类号： A61B17/00 ,  A61B17/34 ,  A61M25/08 ,  A61B17/04

    CPC分类号： A61B17/3417 ,  A61B17/0057 ,  A61B17/00491 ,  A61B17/3498

    摘要： An instrument for achieving rapid hemostasis at the conclusion of a catheterization procedure comprises a device for injecting a fluid hemostatic agent into a puncture wound that is operatively associated with a conventional introducer sheath component of the introducer used to gain access to a blood vessel using the Seldinger technique. The hemostatic agent injection device includes a tubular member that can be concentrically disposed with a tubular introducer sheath so as to be slidable therealong and where the injection device includes a hemostatic agent inlet port at a proximal end thereof and an ejection port at a distal end, the two ports being interconnected by a lumen. In a first embodiment, the hemostatic agent injection device is adapted to coaxially surround the introducer sheath and in an alternate embodiment, the injection device is coaxially disposed within the lumen of the introducer sheath.

    摘要翻译： 用于在导管插入术结束时实现快速止血的仪器包括用于将流体止血剂注射到穿刺伤口中的装置，所述穿刺伤口与用于使用所述Seldinger进入血管的导引器的常规导引器鞘部件可操作地相关联 技术。 止血剂注射装置包括管状构件，该管状构件可以同心地设置有管状导引鞘，以便能够沿着其滑动，并且其中注射装置包括其近端处的止血剂入口和远端的排出口， 两个端口由管腔相互连接。 在第一实施例中，止血剂注射装置适于同轴地包围导引鞘，并且在替代实施例中，注射装置同轴地设置在导引鞘的内腔中。

    Steerable catheter with external guidewire as catheter tip deflector
    7.
    发明授权
    Steerable catheter with external guidewire as catheter tip deflector 有权
    可导向导管，外导管作为导管尖端导流器

    公开(公告)号：US6126649A

    公开(公告)日：2000-10-03

    申请号：US329386

    申请日：1999-06-10

    申请人： Robert A. VanTassel ,  Robert S. Schwartz ,  David R. Holmes

    发明人： Robert A. VanTassel ,  Robert S. Schwartz ,  David R. Holmes

    IPC分类号： A61M25/01 ,  A61M25/09

    CPC分类号： A61M25/0138 ,  A61M25/0147 ,  A61B2017/22041 ,  A61B2017/22045 ,  A61M2025/0177

    摘要： A steerable catheter in which a guidewire can serve a dual purpose of deflecting a bendable element at a distal end of the steerable catheter and as a guidewire to facilitate the placement of a working catheter within the vascular system. The guidewire is adapted to be slidingly received within routing eyelets or the like where one of such eyelets is disposed at a distal end of the bendable element and another near the proximal end thereof. The guidewire can be readily advanced in the distal direction relative to the steerable catheter, but tensioning of the guidewire at its proximal end serves to deflect and bend the bendable element.

    摘要翻译： 可导向的导管，其中导丝可以用于在可操纵导管的远端处偏​​转可弯曲元件的双重目的，并且用作导丝，以便于在血管系统内放置工作导管。 导丝适于滑动地容纳在布置孔眼等内，其中这些孔眼之一设置在可弯曲元件的远端，另一个靠近其近端。 导丝可以相对于可导向导管在远端方向上容易地前进，但是导丝在其近端处的张紧用于使可弯曲元件偏转和弯曲。

    Catheter for drug injection in cardiovascular system
    9.
    发明授权
    Catheter for drug injection in cardiovascular system 失效
    心血管系统药物注射导管

    公开(公告)号：US06605061B2

    公开(公告)日：2003-08-12

    申请号：US09880575

    申请日：2001-06-13

    申请人： Robert A. VanTassel ,  Robert S. Schwartz ,  David R. Holmes

    发明人： Robert A. VanTassel ,  Robert S. Schwartz ,  David R. Holmes

    IPC分类号： A61M5178

    CPC分类号： A61M25/0068 ,  A61B2017/00247 ,  A61B2018/00392 ,  A61M25/008 ,  A61M25/0084 ,  A61M2025/009

    摘要： A catheter for injecting medicants into the endocardium, myocardium or other portions of the cardiovascular system is presented where the catheter has apertures therein for ejection and retraction of a needle. The catheter is designed for the apertures in the catheter to press against the tissue to be injected in the heart while the heart is beating. A needle for inserting a prescribed dose of a medicant is ejected through the aperture and a plunger, pump, or diaphragm is moved to deliver a dose of the medicant to tissue adjacent the aperture. By use of the catheter gene therapy, wherein a small does of a gene are injected into the endocardium of the right or left ventricle, can be used to grow new blood vessels in the injected area of a damaged heart. The apertures in the catheter can be spaced at a prescribed distance for the dosage of medicant to form a precise pattern of injections in the area to be treated. The catheters may be used for any treatments of a human or animal patient where injections are required in the heart, veins or arteries of the cardiovascular system.

    摘要翻译： 提供用于将药剂注射到心内膜，心肌或心血管系统的其它部分的导管，其中导管在其中具有孔，用于针的弹出和缩回。 该导管被设计用于在心脏跳动时将导管中的孔压在组织上以被注射到心脏中。 用于插入规定剂量的药剂的针通过孔排出，移动柱塞，泵或隔膜以将剂量的药剂递送到邻近孔的组织。 通过使用其中将小的基因注入右心室或左心室的导管基因治疗可用于在损伤的心脏的注射区域中生长新的血管。 导管中的孔可以间隔规定的距离，用于药物的剂量以在待治疗的区域中形成精确的注射模式。 导管可用于需要在心血管系统的心脏，静脉或动脉中注射的人或动物患者的任何治疗。