SBH offers the EndoLift.

Liver retraction is often required to maintain adequate visualization of the
surgical target in bariatric and other laparoscopic procedures. Until now,
retraction devices have required additional incisions and manual retraction,
making the procedure more invasive than necessary.

With EndoLift, the groundbreaking internal hands-free retractor, surgeons can
improve patient safety and satisfaction. See short video https://youtu.be/hJA9Fex6ihk