Patent ID: 11883261
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A dressing configured to treat a tissue site, comprising:
a sealing member configured to provide a sealed space at the tissue site;
an inlet port configured to be in fluid communication with the sealed space;
a vent configured to be in fluid communication between the sealed space and an atmosphere exterior to the sealed space; and
a transformable plug comprising a soluble material configured to dissolve in the presence of moisture such that the transformable plug is configured to change from a serviceable state in which the transformable plug is fluid impermeable to a deteriorated state in which the transformable plug is fluid permeable after being exposed to moisture for a pre-determined time period, the transformable plug configured to preclude fluid communication through the vent in the serviceable state and to permit fluid communication through the vent in the deteriorated state.