Gas scavenging exhaust system
作者： Robert S. Price , Charles M. Fischer
DOI:
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摘要: A system utilizing the central vacuum in dental operatory to exhaust analgesic or anesthetic gas from a administration assembly. The includes nosepiece fitting over nose of patient, an assembly for removing exhaled nosepiece, and chamber formed around periphery scavenging leaking through facial seal at rim nosepiece.
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