Gas scavenging exhaust system

Details Gas scavenging exhaust system Gas scavenging exhaust system

1978-11-27

1981-05-05

Recla, Henry J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

128910, 12820713, A61M 1600

Patent

active

042652391

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

REFERENCES:
patent: 3348538 (1967-10-01), Benzel
patent: 3721239 (1973-03-01), Myers
patent: 4004585 (1977-01-01), Boehringer
patent: 4015598 (1977-04-01), Brown
patent: 4151843 (1979-05-01), Brekke et al.
patent: 4180066 (1979-12-01), Milliken et al.
Foregger, Scaveng-OR Gas Evacuator Illustrations, Air Products, Catalog No. 7-351-005, 6/75, Form No. 4P.

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