Assertion: endotracheal tube's cuff | /r/HasProperty | designed in 1970
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Source sentences:
text: In the 1970s, high-volume, low-pressure (HVLP) cuffs, which can achieve clinical seals at pressures below 30 cm H 2 O, were designed and introduced in an attempt to reduce the incidence of tracheal mucosal damage due to ischemic mucosa produced by the LVHP cuffs.