| 摘要 |
<p>A medical device (1) for forming an external extension of the pneumoperitoneum, thus allowing the surgeon more flexibility in a surgical procedure. The device includes an enclosure (2) and an elastically deformable flange or ring (9) at an open end of the enclosure (2). The flange/ring (9) is deformed and inserted into a trocar puncture site, upon which it deploys against the inner surface of the abdominal wall. By maintaining a gentle lifting force on the external portion of the device the neck of the device forms a seal between the opening in the abdominal wall and the "balloon", allowing the insufflation gas to inflate the external balloon. The device includes one or more valved openings (11) which allow access to the interior of the balloon. These openings (11) may be small, allowing access of laparoscopic instruments through the valve, or somewhat larger, allowing the access of a hand or hands.</p> |
