US PATENT SUBCLASS 128 / 203.22
.~.~ Means for supplying, or permitting inhalation of, separate streams of treating agent/respiratory gas mixture through nasal passages

Current as of: June, 1999
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128 /   HD   SURGERY

200.24  DF  RESPIRATORY METHOD OR DEVICE {32}
203.12  DF  .~ Means for mixing treating agent with respiratory gas {16}
203.22.~.~ Means for supplying, or permitting inhalation of, separate streams of treating agent/respiratory gas mixture through nasal passages

DEFINITION

Classification: 128/203.22

Means for supplying, or permitting inhalation of, separate streams of treating agent/respiratory gas mixture through nasal passages:

(under subclass 203.12) Subject matter including means for supplying, or permitting inhalation of, separate streams of treating agent/respiratory gas mixture through air passage of the nose.

(1) Note. Methods and apparatus in this subclass usually include a pair of nozzles or treating agent holders which are respectively inserted into the nasal passages.

SEE OR SEARCH THIS CLASS, SUBCLASS:

207.18, for devices including a respiratory gas supply means entering a nasal passage with no means for mixing a treating agent with the respiratory gas.