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    • 6. 发明授权
    • Transmembrane access systems and methods
    • 跨膜进入系统和方法
    • US08029470B2
    • 2011-10-04
    • US10956899
    • 2004-09-30
    • James S. WhitingNeal L. EiglerJohn L. WardleWerner HafelfingerBrian Mann
    • James S. WhitingNeal L. EiglerJohn L. WardleWerner HafelfingerBrian Mann
    • A61M5/178
    • A61M25/0662A61M25/0041A61M2025/0681
    • Systems and methods for penetrating a tissue membrane to gain access to a target site are disclosed. In some examples, systems and methods for accessing the left atrium from the right atrium of a patient's heart are carried out by puncturing the intra-atrial septal wall. One embodiment provides a system for transseptal cardiac access that includes a stabilizer sheath having a side port, a shaped guiding catheter configured to exit the side port and a tissue penetration member disposed within and extendable from the distal end of the guide catheter. The tissue penetration member may be configured to penetrate tissue upon rotation and may be coupled to a distal portion of a torqueable shaft. In some embodiments, the stabilizer sheath and shaped guiding catheter may be moved relative to the patient's body structure and relative to each other so that a desired approach angle may be obtained for the tissue penetration member with respect to the target tissue.
    • 公开了渗透组织膜以获得进入目标部位的系统和方法。 在一些实例中,通过穿刺房间隔壁来进行从患者心脏的右心房进入左心房的系统和方法。 一个实施例提供了一种用于经心脏进入的系统,其包括具有侧端口的稳定器护套,被配置为离开侧端口的成形引导导管和设置在引导导管的远端内并且可从引导导管的远端延伸的组织穿透构件。 组织穿透构件可以构造成在旋转时穿透组织并且可以联接到可扭转轴的远侧部分。 在一些实施例中,稳定器护套和成形引导导管可以相对于患者的身体结构相对于彼此移动,使得组织穿透构件相对于目标组织可以获得期望的接近角。