Patent ID: 8631801

Claim:
An orifice insertion device, comprising: an insertion element including a feeding tube; an expandable element configured to seal an orifice, the expandable element including an interior region at a first pressure, the expandable element circumferentially attached to the insertion element and coupled to the feeding tube; a pressure regulation system coupled to the insertion element, the pressure regulation system including at least one pressure valve, the pressure regulation system configured to provide a medium to the interior region of the expandable element via the feeding tube of the insertion element responsive to the at least one pressure valve, the pressure regulation system having a second pressure proximate the at least one pressure valve; and a pressure release mechanism coupled to the pressure regulation system, the pressure release mechanism configured to manually adjust a current pressure in the expandable element responsive to a user, where the pressure release mechanism includes a release pin coupled to the at least one pressure valve and a resilient restoring member coupled to the release pin, the resilient restoring member including an elastic membrane, activation of the resilient restoring member decreasing the current pressure in the expandable element, and where the at least one pressure valve is configured to open to at least a design flow rate when a difference between the first pressure and the second pressure is greater than a threshold level.