State A — Packaged (flat)
Device ships flat; basin sheets lay against each other, adhesive unexposed beneath release liners.
State B — Deployed (formed, ready)
Tab adhered to patient. Basin bag ready to open for catching.
State C — Open (catching)
Basin rim open at the ziplock (26a / 26b separated). Bag mouth faces the patient to catch expelled content during delivery.
State D — Closed (sealed post-use)
Ziplock engaged (26a and 26b interlocked). Basin contents sealed inside the bag for disposal.
Bag construction — Section A–A
Basin is a 2-sheet bag. Top sheet (18) is the outer barrier; bottom sheet (22) is skin-facing.
Sheets meet at basin perimeter (24). Tab is a single flat sheet.