Perfusion device for maintaining blood flow in a vessel while isolating an anastomosis
    84.
    发明授权
    Perfusion device for maintaining blood flow in a vessel while isolating an anastomosis 失效
    用于在分离吻合期间维持血管中的血液流动的灌注装置

    公开(公告)号:US06214022B1

    公开(公告)日:2001-04-10

    申请号:US09301019

    申请日:1999-04-28

    IPC分类号: A61B1708

    摘要: A plurality of embodiments of a distal perfusion device are disclosed, which device facilitates anastomosis constructions by maintaining a dry anastomosis site while simultaneously maintaining blood flow distally in the blood vessel to prevent ischemia and reduce overall patient trauma. The perfusion device is configured for installation into a blood vessel such as a left anterior descending coronary artery through an incision therein, to which is to be grafted a distal end of a blood vessel such as an internal mammary artery. The device includes a central member of selected configuration and material, terminating at either end thereof in respective selectively tapered end members. A lumen extending through the central member and end members, and selected perforations in the end members, maintain blood flow through the perfusion device. A selected portion or portions of the device's outer circumference fit snugly within the artery in the regions beyond and/or at the anastomosis site, to maintain the latter free of blood. Several methods for deploying and removing respective embodiments of the device also are illustrated.

    摘要翻译: 公开了一种远端灌注装置的多个实施例,该装置通过维持干吻合部位来促进吻合结构,同时在血管中保持血液向远端流动以防止局部缺血并减少总的患者创伤。 灌注装置被构造成通过其中的切口安装到诸如左前降支冠状动脉的血管中,其将被移植到诸如内部乳腺动脉的血管的远端。 该装置包括选定构型和材料的中心构件,其终端位于相应的选择性锥形端构件的任一端。 延伸穿过中心构件和端构件的内腔以及端构件中选择的穿孔保持血流通过灌注装置。 装置的外周的选定部分或部分适合紧贴在吻合部位之外和/或处于吻合部位的区域内的动脉内,以保持后者无血液。 还示出了用于部署和移除设备的各个实施例的几种方法。

    Methods and devices for minimally invasive coronary artery
revascularization on a beating heart without cardiopulmonary bypass
    85.
    发明授权
    Methods and devices for minimally invasive coronary artery revascularization on a beating heart without cardiopulmonary bypass 失效
    在没有体外循环的搏动心脏上进行微创冠状动脉血运重建的方法和装置

    公开(公告)号:US5875782A

    公开(公告)日:1999-03-02

    申请号:US752741

    申请日:1996-11-14

    摘要: Methods and devices for revascularization of a patient's coronary artery system which obviate the need to place the patient on cardiopulmonary bypass. A method is provided for revascularizing a patient while the-heart is beating, and includes performing at least one minimally invasive coronary artery bypass graft procedure, or other cardiac surgical procedure, and contemporaneously performing at least one catheter-based procedure in at least one coronary artery. The catheter-based procedure(s) may be either therapeutic or diagnostic or both, and may involve delivering at least one catheter to a coronary artery via a surgical or percutaneous opening in the thoracic cavity or via a percutaneous opening at a location peripheral to the thoracic cavity. The catheter-based procedure or procedures is performed contemporaneously with the bypass graft procedure, and specifically prior to, during, or after anesthetizing the patient for purposes of the bypass graft procedure. An arterial access device is also provided for central cannulation and direct intraoperative catheterization of a patient's coronary artery system on a beating heart. The device includes a tubular member, such as a cannula, having a proximal end and a distal end, and an elongated puncturing member, such as a trocar, which is slideably disposed within the tubular member. The puncturing member has a sharp distal end for puncturing through the wall of a coronary lumen. The arterial access device further includes a sealing member for engaging the coronary lumen wall at the puncture site in order to minimize the leakage of blood from the puncture site.

    摘要翻译: 用于患者冠状动脉系统血运重建的方法和装置,其不需要将患者置于体外循环。 提供了一种在心脏跳动时使患者血运重建的方法,并且包括执行至少一种微创冠状动脉旁路移植手术或其他心脏外科手术,同时在至少一个冠状动脉中执行至少一个基于导管的程序 动脉。 基于导管的程序可以是治疗性的或诊断的或两者都可以,并且可以涉及通过胸腔中的手术或经皮开口或通过在外周的位置处的经皮开口将至少一个导管递送到冠状动脉 胸腔。 基于导管的程序或程序与旁路移植手术同时进行,特别是在麻醉患者之前,期间或之后进行旁路移植手术。 还提供了一种动脉通路装置,用于中心插管并且在搏动心脏上直接对患者的冠状动脉系统进行导管插入。 该装置包括具有近端和远端的管状构件,例如插管,以及可滑动地设置在管状构件内的细长的穿刺构件,例如套管针。 穿刺构件具有用于刺穿冠状腔的壁的尖锐远端。 动脉进入装置还包括密封构件,用于在穿刺部位处与冠状腔壁接合,以便使来自穿刺部位的血液泄漏最小化。