Extracorporeal pneumoperitoneum access bubble
First Claim
1. A medical device for forming an extracorporeal pneumoperitoneum extension comprising an enclosure having an interior and an open end, and deploying means at the open end of the enclosure, the deploying means being deformable to a configuration which permits the open end to pass through a trocar puncture site in an abdominal wall and then expand the open end beneath an inner surface of the abdominal wall such that gas in the abdominal cavity passes into the interior of the enclosure, the enclosure including at least one access opening therein for accessing the interior of the enclosure and allowing surgical operations to be performed beneath the abdominal wall or within the interior of the enclosure.
7 Assignments
0 Petitions
Accused Products
Abstract
A medical device for forming an external extension of the pneumoperitoneum, thus allowing the surgeon more flexibility in a surgical procedure. The device includes an enclosure and an elastically deformable flange or ring at an open end of the enclosure. The flange/ring 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 (this being essentially a balloon shape) 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` or `bubble` portion of the device. Once inflated, the internal pressure maintains the device in a stable shape. The device includes one or more valved openings which allow access to the interior of the balloon, and hence the abdominal cavity. These openings may be small, allowing access of laparoscopic instruments through the valve, or somewhat larger, allowing the access of a hand or hands. The valve design minimizes loss of pneumoperitoneum.
567 Citations
24 Claims
- 1. A medical device for forming an extracorporeal pneumoperitoneum extension comprising an enclosure having an interior and an open end, and deploying means at the open end of the enclosure, the deploying means being deformable to a configuration which permits the open end to pass through a trocar puncture site in an abdominal wall and then expand the open end beneath an inner surface of the abdominal wall such that gas in the abdominal cavity passes into the interior of the enclosure, the enclosure including at least one access opening therein for accessing the interior of the enclosure and allowing surgical operations to be performed beneath the abdominal wall or within the interior of the enclosure.
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20. A medical device for forming an extracorporeal pneumoperitoneum extension comprising an enclosure having an interior and an open end for engaging an opening in an abdominal wall, the enclosure including at least one access opening therein for accessing the interior of the enclosure and allowing surgical operations to be performed beneath the abdominal wall or within the interior of the enclosure, the enclosure being gas-fight and expandable from a first configuration to a second configuration by supplying pressurized gas from the abdominal cavity through the opening in the abdominal wall to the interior of the enclosure.
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21. A medical device for forming an extracorporeal pneumoperitoneum extension comprising an enclosure having an interior and an open end, and deploying means at the open end of the enclosure, the deploying means being deformable to a configuration which permits the open end to pass through a trocar puncture site in an abdominal wall and then expand the open end beneath an inner surface of the abdominal wall, the enclosure allowing surgical operations to be performed within the interior of the enclosure, the deploying means comprising an elastically deformable annular flange and the device including an annular gap between the enclosure and the flange, the gap accommodating the abdominal wall surrounding the trocar puncture site when the flange is deployed beneath the inner surface of the abdominal wall.
- 22. A medical device for forming an extracorporeal pneumoperitoneum extension comprising an enclosure having an interior space and an open end, and deploying means at the open end of the enclosure, the deploying means being deformable to a configuration which permits the open end to pass through a trocar puncture site in an abdominal wall and then expand the open end beneath an inner surface of the abdominal wall, the enclosure including at least one iris valve therein for accessing the interior space of the enclosure and allowing surgical operations to be performed beneath the abdominal wall through the open end or within the interior of the enclosure.
Specification