Device for extracting elements from cavities, which uses a bag for extraction and an applicator

A device to extract elements contained in cavities, comprising:

• a bag with pockets, and handles or holes to extract the bag from a cavity, wherein the bag is a tube of flexible transparent material and is folded onto itself at a fold, and comprises an air chamber adjacent to the fold between an outer portion of the bag and an inner portion of the bag that is configured to be inflated/deflated through a conduit,
• an applier with an advancement measurement indicator;
• wherein the air chamber is configured to reduce an inner circumference of the bag when the air chamber is inflated;
• and
• said applier comprises two pieces:
• a first piece comprising an outer tube, that is a hollow tube, of rigid material, which, at its distal end, transitions into at least two tentacles or soft curved arms that are flexible;
• and
• a second piece comprising an inner tube, that is a hollow tube, open at ends of the inner tube, which slides inside the outer tube and includes a funnel at its distal end,
• wherein the outer tube has, at a proximal end, a chamber, and
• the inner tube has an enlarged portion at a proximal end that is located inside the chamber, and the chamber restricts a sliding range of the inner tube with respect to the outer tube by restricting a sliding range of the enlarged portion, and
• wherein said pockets are shaped to receive the tentacles or the soft curved arms of the applier,
• wherein the inner portion of the bag is configured to move relative to the outer portion of the bag during extraction.