| 摘要 |
Apparatus (20) and methods for performing surgery within a hollow body organ, are provided. A catheter (28) is provided having a longitudinal axis, and an end region carrying an end effector (25), the end region movable to a series of positions along the longitudinal axis, and with a selected orientation relative to the longitudinal axis. The catheter (28) includes elements (27) for stabilizing the end region of the apparatus within a hollow body organ, and for counteracting reaction forces developed during the actuation of the end effector (25). The end effector (25) provides for tissue cutting, and aspiration of severed tissue from a treatment site. |
