GB766879A - Method and apparatus for the production of oxygenated mist - Google Patents

Abstract

766,879. Respiratory appliances; producing medicinal aerosols. RIESS, H. Aug. 31, 1953, No. 24002/53. Classes 81(1) and 81(2) Aerosols capable of releasing nascent oxygen upon inhalation into the respiratory passages are made by producing in solution a substance capable of releasing such oxygen under the action of a catalyst, and adding to the solution such a catalyst capable of reducing surface tension in the solution. In the apparatus. shown in Fig. 2 the aerosols are produced in a medicinal liquid 6 in a container 1, the aerosols leaving through a mouthpiece 3 whilst air is admitted to the container through a valve 7-controlled air intake 5. Fig 5 shows the container 1 in pipe-like form, the air inlet tube 5 being vertical, whilst in Fig. 7 the tube 5 is exterior of the container. In an apparatus suitable for forcibly applying the aerosols to the nostrils, or to blow into a room to destroy bacteria, the air tube 5, Fig. 8, has a rubber ball pump 13 and the mouthpiece 3 a tube 11 at the free end of which is a nostril applicator 12. In a modification of this embodiment the positions of the pump 13 and the tube 11 are reversed. In a modified Fig. 5 apparatus holes are provided in the tube 5 both above and below the liquid line. In one method of producing the aerosols a container (Fig. 1, not shown) is filled with 375 c.c. of water, or camomile, or sage tea or any other suitable medicaments. To the liquid is added about 3 grams of sodium percarbonate and about 0.6 grams of catalyst. The latter is based upon a fruit acid, e.g. crystallized citric acid. The latter is wetted with a 5 per cent solution of caustic potash and sprayed with finelydivided potassium osmate to which sodium or common salt is added as a diluent when the catalyst is to be produced in tablet form. The catalyst is finally made stable for preservation by the addition of sodium hydroxide solution.