DEVICES AND METHODS FOR ASSISTING MEDICAL TREATMENTS

摘要

A treatment device and method for treatment are provided. The treatment device can include a shaft, an expandable member, a first elongated control member and a second elongated control member. The expandable member can further include at least a first controllable portion and a second controllable portion, where the expandable member, including the first controllable portion and the second controllable portion, is configured to transition between at least a partially retracted configuration and an expanded configuration under control of at least the first elongated control member. Further still, the first controllable portion can be configured to transition between at least a partially retracted configuration and an expanded configuration, while the second controllable portion is configured to remain substantially unchanged, under control of at least the second elongated control member.