SELF-CONTAINED RESPIRATORY APPARATUS Russian patent published in 2013 - IPC A62B7/08 B63C11/24 

FIELD: medicine.

SUBSTANCE: invention refers to individual self-contained respiratory apparatuses providing human life in the irrespirable atmosphere. The individual respiratory apparatuses comprises a regenerative product, a mask, a respiratory sac and a respiratory mixture volume adjustment device. The mask comprises inspiratory and expiratory valves. The respiratory mixture regeneration device has spatially separated units for oxygen generation and carbon dioxide absorption. Said units are functionally interconnected by a circulating alkali solution by a pump. The unit for carbon dioxide absorption additionally comprises a nozzle piece and a container for sedimented sodium carbonate and bicarbonate. The effect is ensured by increasing a contact area of the respiratory mixture and the alkali solution by means of the nozzle piece and the use of the higher alkali concentration in the solution in the contact area.

EFFECT: design of the apparatus enables higher degree of respiratory mixture purification from carbon dioxide.

2 dwg