| 摘要 |
<p>A natural orifice luminal device and method of performing a natural orifice luminal procedure includes providing a generally closed body. The generally closed body has a size and shape to be retained by a portion of the lumen defining an aperture between the lumen and a space adjacent to the lumen. The generally closed body is adapted to substantially seal the aperture from passage of gas between the lumen and the space adjacent to the lumen. In this manner, the lumen and the space adjacent to the lumen can be at different gas pressures.</p> |
