. A text-book of practical therapeutics, with especial reference to the application of remedial measures to disease and their employment upon a rational basis . Arrangement of bottles for promoting lung expansion. Another form of apparatus, designed for the same purpose as thatjust named, is Denisons Resistance Inhaler. (See Fig. 87.) Thephysician having determined that the patient is to inhale air against Fig. Denisons resistance inhaler. When in use the cap at the end of the inhaler is removed andair is drawn into the square chamber, which contains a piece of folded absorbent paper or c
. A text-book of practical therapeutics, with especial reference to the application of remedial measures to disease and their employment upon a rational basis . Arrangement of bottles for promoting lung expansion. Another form of apparatus, designed for the same purpose as thatjust named, is Denisons Resistance Inhaler. (See Fig. 87.) Thephysician having determined that the patient is to inhale air against Fig. Denisons resistance inhaler. When in use the cap at the end of the inhaler is removed andair is drawn into the square chamber, which contains a piece of folded absorbent paper or cottonwet with some of the volatile oils named in the text. The air then passes to the patient byway of the mouth-piece, meeting, however, a resistance valve on the way designed to produceforced inhalations. On expiration the air goes through the mouth-piece as far as the perforatedelevated column, where, by a valve, it escapes. By means of the cap on top of this column theresistance offered by the valve to the escape of the air is increased or diminished as is desired,so that the patient expires against resistance. resistance, the valve is fixed to yield to a pressure caused by his forcibleinspiration. On the other hand, when the patient exhales the musclesof the chest must use sufficient pressure to force the air past the expira-tion valve. The result is that every part of the lung is expanded, therespirato
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