利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

34 条记录 (耗时 0.027 秒)

    System for cardiac procedures
    23.
    发明授权
    System for cardiac procedures 失效
    心脏手术系统

    公开(公告)号：US5885238A

    公开(公告)日：1999-03-23

    申请号：US453426

    申请日：1995-05-30

    申请人： John H. Stevens ,  Philip C. Evard ,  Timothy R. Machold

    发明人： John H. Stevens ,  Philip C. Evard ,  Timothy R. Machold

    IPC分类号： A61B17/00 ,  A61B17/28 ,  A61B17/32 ,  A61F2/24 ,  A61F2/958 ,  A61M1/36 ,  A61M25/00 ,  A61M25/01 ,  A61M25/06 ,  A61M29/02 ,  A61M37/00 ,  A61M29/00

    CPC分类号： A61F2/2427 ,  A61B17/29 ,  A61F2/2433 ,  A61M1/3653 ,  A61M1/3659 ,  A61M25/0041 ,  A61M25/0147 ,  A61M25/0152 ,  A61M25/0662 ,  A61M25/10 ,  A61B17/320016 ,  A61B2017/00243 ,  A61B2018/00232 ,  A61B2018/00261 ,  A61F2/2436 ,  A61M2025/0031 ,  A61M2025/0078 ,  A61M2025/015 ,  A61M2025/0161 ,  A61M2025/028 ,  A61M2025/1047 ,  A61M2025/1052 ,  A61M2025/1077 ,  A61M2025/1095 ,  A61M2205/11 ,  A61M2205/366 ,  A61M2210/125 ,  A61M2210/127 ,  A61M25/0032 ,  A61M25/0125 ,  A61M25/1002

    摘要： A system for accessing a patient's cardiac anatomy which includes an endovascular aortic partitioning device that separates the coronary arteries and the heart from the rest of the patient's arterial system. The endovascular device for partitioning a patient's ascending aorta comprises a flexible shaft having a distal end, a proximal end, and a first inner lumen therebetween with an opening at the distal end. The shaft may have a preshaped distal portion with a curvature generally corresponding to the curvature of the patient's aortic arch. An expandable means, e.g. a balloon, is disposed near the distal end of the shaft proximal to the opening in the first inner lumen for occluding the ascending aorta so as to block substantially all blood flow therethrough for a plurality of cardiac cycles, while the patient is supported by cardiopulmonary bypass. The endovascular aortic partitioning device may be coupled to an arterial bypass cannula for delivering oxygenated blood to the patient's arterial system. The heart muscle or myocardium is paralyzed by the retrograde delivery of a cardioplegic fluid to the myocardium through patient's coronary sinus and coronary veins, or by antegrade delivery of cardioplegic fluid through a lumen in the endovascular aortic partitioning device to infuse cardioplegic fluid into the coronary arteries. The pulmonary trunk may be vented by withdrawing liquid from the trunk through an inner lumen of an elongated catheter. The cardiac accessing system is particularly suitable for removing the aortic valve and replacing the removed valve with a prosthetic valve.

    摘要翻译： 一种用于访问患者心脏解剖结构的系统，其包括将冠状动脉和心脏与患者动脉系统的其余部分分离的血管内主动脉分配装置。 用于分隔患者升主动脉的血管内装置包括具有远端，近端和其间的第一内腔的柔性轴，在远端具有开口。 轴可以具有预先形成的远端部分，其曲率通常对应于患者主动脉弓的曲率。 可膨胀装置，例如 靠近靠近第一内腔中的开口的轴的远端附近的气囊，用于闭塞升主动脉，以便阻止基本上所有的血液通过其进行多个心动周期，同时患者由体外循环 。 血管内主动脉分配装置可以联接到动脉旁路套管，用于将氧合血液输送到患者的动脉系统。 通过患者的冠状窦和冠状静脉逆行递送心脏停搏液到心肌，或者通过血管内主动脉分配装置的内腔顺序递送心脏停跳液，将心肌或心肌瘫痪，将心脏停搏液注入冠状动脉 。 可以通过从细长的导管的内腔中抽出液体来排出肺动脉干。 心脏存取系统特别适用于去除主动脉瓣并用假体瓣替换去除的瓣膜。

    Endovacular cardiac venting catheter and method
    29.
    发明授权
    Endovacular cardiac venting catheter and method 失效
    腹腔心脏通气导管及方法

    公开(公告)号：US06579259B2

    公开(公告)日：2003-06-17

    申请号：US09344543

    申请日：1999-06-25

    申请人： John H. Stevens ,  Jeffrey W. Krier ,  Kirsten L. Valley ,  Philip C. Evard

    发明人： John H. Stevens ,  Jeffrey W. Krier ,  Kirsten L. Valley ,  Philip C. Evard

    IPC分类号： A61M2900

    CPC分类号： A61M25/0041 ,  A61B2018/00232 ,  A61B2018/00261 ,  A61F2/2433 ,  A61F2/2436 ,  A61M1/3653 ,  A61M1/3659 ,  A61M25/007 ,  A61M25/0125 ,  A61M25/0662 ,  A61M25/10 ,  A61M29/02 ,  A61M2025/0004 ,  A61M2025/0078 ,  A61M2025/028 ,  A61M2025/1047 ,  A61M2025/1052 ,  A61M2025/1077 ,  A61M2210/125 ,  A61M2210/127

    摘要： A venting catheter, system and method are provided for withdrawing blood and other fluids from a patient's heart to facilitate decompressing the heart during cardioplegic arrest and cardiopulmonary bypass, without the need for a thoracotomy and without puncturing the aorta, pulmonary artery, or heart itself. The venting catheter is configured to be introduced into a peripheral vein and intraluminally advanced through the right side of the heart and into the pulmonary artery. The venting catheter includes a lumen configured to withdraw blood at a rate of at least about 50 ml/min at a pressure of no less than about −350 mmHg. A flow-directing means is provided to facilitate guiding the catheter into the pulmonary artery by being carried by blood flow through the heart. The cardiac venting system may include, in addition to the cardiac venting catheter, a cardiopulmonary bypass system to maintain circulation of oxygenated blood, and means for arresting the patient's heart.

    摘要翻译： 提供排气导管，系统和方法用于从心脏的心脏中抽出血液和其它流体，以便在心脏停搏和心肺分流期间减压心脏，而不需要开胸术，而不需要穿刺主动脉，肺动脉或心脏本身。 排气导管被构造成被引入外周静脉，并且通过心脏的右侧并进入肺动脉中。 排气导管包括被配置为在不低于约-350mmHg的压力下以至少约50ml / min的速率抽出血液的内腔。 提供流动引导装置以便于通过血流通过心脏而携带导管进入肺动脉。 除了心脏通气导管之外，心脏通气系统可以包括维持氧合血液循环的心肺旁路系统，以及用于阻止患者心脏的装置。