초록 ▼

A disposable re-breathing apparatus for use with hyperventilating patients has a disposable, flexible polymer bag which attaches to a nose/mouth mask and an air control valve located between the mask and the disposable bag which adjusts the ratio of re-breathed air to fresh air through a fresh air i

A disposable re-breathing apparatus for use with hyperventilating patients has a disposable, flexible polymer bag which attaches to a nose/mouth mask and an air control valve located between the mask and the disposable bag which adjusts the ratio of re-breathed air to fresh air through a fresh air inlet. The fresh air inlet has a check valve preventing exhaling air therethrough and a pressure relief valve may be provided to release re-breathed air when the polymer bag becomes filled.

대표청구항 ▼

A disposable re-breathing apparatus comprising in combination: disposable mask for a patient to breath into; disposable, flexible re-breathing bag operatively coupled to said mask; air control valve means connected between said mask and said bag and providing a bi-directional flow path therebetween

A disposable re-breathing apparatus comprising in combination: disposable mask for a patient to breath into; disposable, flexible re-breathing bag operatively coupled to said mask; air control valve means connected between said mask and said bag and providing a bi-directional flow path therebetween and having a fresh air inlet connecting said air control valve means to the open atmosphere; a check valve operatively attached to said fresh air inlet to prevent the exhaling of air from said fresh air inlet; and said air control valve means having valving means for varying the ratio of air breathed by a patient from said mask between re-breathed air from said bag and fresh air from said fresh air inlet, thereby providing a greater control of re-breathing by patients.