阅读说明：本技术 组织移除导管 (Tissue removal catheter ) 是由 M·弗莱明 A·詹莫斯 J·凯利 C·麦克马伦 C·米德 G·卡罗尔 于 2018-05-03 设计创作，主要内容包括：一种用于移除体腔中的组织的组织移除导管包括细长主体(12),该细长主体具有轴线以及沿着该轴线彼此间隔开的近端部分和远端部分。细长主体(12)的尺寸和形状设定成接纳在体腔中。手柄(40)安装于细长主体(12)的近端部分并且可操作成使得细长主体的旋转。组织移除元件安装在细长主体(12)的远端部分上。内衬套(14)接纳在细长主体(12)内,并且在内衬套(14)的近端处联接于手柄(40)。传感器相对于细长主体(12)和内衬套(14)布置并构造成检测由细长主体(12)在使用期间接触内衬套(14)引起的内衬套(14)的磨损。(A tissue-removing catheter for removing tissue in a body lumen includes an elongate body (12) having an axis and proximal and distal portions spaced apart from one another along the axis. The elongated body (12) is sized and shaped to be received in a body cavity. A handle (40) is mounted to a proximal portion of the elongated body (12) and is operable to cause rotation of the elongated body. A tissue-removing element is mounted on a distal portion of the elongate body (12). An inner liner (14) is received within the elongated body (12) and is coupled to the handle (40) at a proximal end of the inner liner (14). The sensor is arranged relative to the elongate body (12) and the inner liner (14) and is configured to detect wear of the inner liner (14) caused by the elongate body (12) contacting the inner liner (14) during use.)