Extracorporeal pneumoperitoneum access bubble

Details Extracorporeal pneumoperitoneum access bubble Extracorporeal pneumoperitoneum access bubble

1994-03-14

1996-01-02

Pellegrino, Stephen C.

Surgery

Instruments

Sutureless closure

606201, 606215, A61B 1704

Patent

active

054804108

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.

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patent: 5215531 (1993-06-01), Maxson et al.
patent: 5366478 (1994-11-01), Brinkerhoff et al.

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