Surgery – Respiratory method or device – Including body or head supported means covering user's scalp
Patent
1984-11-16
1987-03-24
Howell, Kyle L.
Surgery
Respiratory method or device
Including body or head supported means covering user's scalp
12820219, 12820628, A62B 702
Patent
active
046517278
ABSTRACT:
A sleeved gown is formed with an integral hood having a narrow front opening in line with the eyes of the wearer. The material of the gown is held in close contact with the wearer's face across the forehead and below the eyes but above the nose by means of tapes tied around the hood. An exhaust duct extends over each of the wearer's shoulders beneath the gown and has a plurality of exhaust inlets in the region of the wearer's chest. Preferably, upward airflow is restricted to a vertical passageway formed by an outward billowing of the gown material. This arrangement is most effective in drawing away air-borne emissions from the wearer's body and causing ambient air to enter from the bottom of the gown and gaps at each side of the wearer's nose. It is more comfortable than previous arrangements as there is no rigid mask or visor. Also as air extraction does not take place adjacent the wearer's face, no special communication equipment is required.
REFERENCES:
patent: 3403677 (1968-10-01), Struve
patent: 3516404 (1970-06-01), Spross
patent: 3525334 (1970-08-01), Braman et al.
patent: 3625207 (1971-12-01), Agnew
patent: 3804086 (1974-04-01), Agnew
patent: 4019508 (1977-04-01), Der Estaphanian et al.
patent: 4055173 (1977-10-01), Knab
Howell Kyle L.
Howorth Air Engineering Limited
Sykes Angela D.
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