Organ retention device and system, and use of same for laparoscopic surgery

An organ retention device, comprising:

• a biologically compatible flexible barrier configured to restrain one or more organs;
• a first anchor string extending from a first connection region of the flexible barrier;
• a second anchor string extending from a second connection region of the flexible barrier, a top peripheral region of the flexible barrier extending between the first connection region and the second connection region;
• and
• at least one expansion element coupled to the flexible barrier at a weighted peripheral region spaced from the top peripheral region to expand the flexible barrier generally perpendicularly to the top peripheral region, wherein the at least one expansion element comprises supplementary weighting along the weighted peripheral region of the flexible barrier and spaced from the top peripheral region to cause the weighted peripheral region to hang down from the top peripheral region when the first connection region and the second connection region are held apart in tension.