| http://www.w3.org/ns/prov#value | - Alternatively, the gallbladder may be opened to remove or crush material present in the gallbladder such as gallstones, facilitating removal of the gallbladder and the inflatable unit 30 through the umbilical incision. [0064] As shown in FIG. 5A and FIG. 5B, an alternate exemplary embodiment of the present invention provides an inflatable unit 70 including a single C-shaped trocar sleeve or cannul
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