| 摘要 |
PROBLEM TO BE SOLVED: To provide new devices with adequate directional control to dissect small elongated cavities in tissue planes, particularly along the course of blood vessels, and more particularly, along the course of smaller blood vessels such as IMAs. SOLUTION: A dissection device (10) for incising or dissecting tissue from an elongate structure in a body is disclosed. The dissection device comprises an elongate tubular member (20) such as a cannula or other hollow tube (21) and an inflatable elongate tubular balloon (70) coupled to the elongate tubular member (20). The dissection device further comprises a unit for connecting the elongate tubular balloon (70) to an inflation source to inflate the elongate tubular balloon (70) and a unit for deflating the elongate tubular balloon (70) such as by a deflation valve (30). The elongate tubular balloon (70) typically has multiple cylindrical chambers (73, 74), is inverted during its uninflated state, and everts during use. COPYRIGHT: (C)2011,JPO&INPIT
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