| http://www.w3.org/ns/prov#value | - Alternatively, the sealing balloon 54 may be another type of seal that does not require selective inflating and deflating, e.g., a resilient, deformable sealing balloon or other device that is suitably large to provide sealing function and still is sufficiently flexible and/or deformable to allow it to be inserted and withdrawn from the patient, e.g., esophagus.
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