Nutrient recycling device

A method comprising:

• recycling digestive nutrients by collecting digestive contents from a surgically created first opening of a gastrointestinal tract and recycling the digestive contents to a second opening with a nutrient recycling device including
• a flexible bag including
• a first bag opening adapted to receive digestive contents from the surgically created first opening;
• a pathway inlet configured receive digestive contents from the first bag opening;
• a first region within the bag configured to receive digestive contents from the pathway inlet;
• a second region within the bag configured to receive digestive contents from the first region;
• an outlet conduit defining a fluid pathway for digestive contents to flow from the bag to the second gastrointestinal tract opening;
• and
• a pathway outlet connected to the outlet conduit at a junction;
• and
• wherein the bag defines a doughnut-shape defining an aperture through the bag configured to separate the first region and the second region, and defines a sealed flow pathway within the bag around a perimeter of said aperture;
• and
• a pump defining at least a section of the bag configured to be externally compressed by a patient to pump digestive contents along the flow pathway from or near the first bag opening towards the second gastrointestinal tract opening;
• wherein the method further includes
• positioning the first bag opening over (i) the first opening or (ii) the first opening and the second opening;
• and
• compressing the at least a section of the bag and thereby driving the digestive contents along said flow pathway towards the outlet conduit.