| 摘要 |
There is disclosed medical apparatus of the type for use in surgery such as transanal endoscopic microsurgery, as well as methods of providing access to, inspecting and enabling surgery within a body passage. In one embodiment of the invention, medical apparatus in the form of a rectal expander ( 10 ) is disclosed, the expander ( 10 ) being adapted for location at least partly within a body passage such as the rectum ( 12 ) of a patient ( 14 ), the expander ( 10 ) having a leading end ( 18 ) and an access area in the form of an opening ( 20 ) for access from the expander ( 10 ) into the rectum ( 12 ), at least part of the opening ( 20 ) being spaced from the leading end ( 18 ), and the expander ( 10 ) being controllably movable between collapse and expansion positions, for expanding the rectum ( 12 ). |
