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    • 7. 发明申请
    • MEDICAL DEVICE WITH EXPANSION MECHANISM
    • 具有扩张机制的医疗器械
    • US20080009877A1
    • 2008-01-10
    • US11773876
    • 2007-07-05
    • Meera SankaranGregory Arcenio
    • Meera SankaranGregory Arcenio
    • A61B17/16
    • A61B17/1671A61B17/1617A61B2017/00867A61B2217/005
    • Apparatuses and methods for accessing a tissue and expanding an apparatus within the tissue are disclosed herein. In one embodiment, a method includes rotating a distal end portion of an expandable medical device within a biological body such that at least a portion of tissue within the biological body is disrupted. The distal end portion of the medical device defines a plurality of openings in communication with an interior region. After rotating the distal end portion of the medical device, a distal end portion of an elongate member is moved distally within a lumen of the medical device and into the interior region of the distal end portion of the medical device. The elongate member is configured to displace tissue fragments from the interior region. In some embodiments, after the rotating, a fluid is introduced into the interior region of the medical device via the elongate member.
    • 本文公开了用于访问组织并扩展组织内的装置的装置和方法。 在一个实施例中,一种方法包括使生物体内的可扩张医疗装置的远端部分旋转,使得生物体内的组织的至少一部分被破坏。 医疗装置的远端部分限定了与内部区域连通的多个开口。 在旋转医疗装置的远端部分之后,细长构件的远端部分在医疗装置的内腔内向远侧移动并进入医疗装置的远端部分的内部区域。 细长构件构造成从内部区域移位组织碎片。 在一些实施例中,在旋转之后,流体经由细长构件被引入医疗装置的内部区域。