Pneumatic oxygen conserving device

Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure

Reexamination Certificate

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Details

C128S205240, C128S204240, C128S204250

Reexamination Certificate

active

07089938

ABSTRACT:
A pneumatic oxygen conserving device uses a portion of gas exiting its main valve to interrupt delivery of the gas. Gas is dispensed upon inhalation and is interrupted by means of suitable pneumatic connections between the device's delivery system and its sensing system.

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