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. Anaesthetics : their uses and administration. osis andrendered ether at once a safe and satisfactory ansesthetic, isbased upon the principle that the patient is able without dis-comfort to inhale nitrous oxide, and when unconscious, ethervapour in increasing strength is mixed with the gas, and finallyether vapour inhaled by itself. In this way there is no breakin the continuity of the narcosis and no sudden transition, i.e.nitrous oxide gas first, then this ansesthetic mixed with ethervapour, and finally ether vapour alone. I/O ANESTHETICS. Many forms of apparatus have been suggested since C

. Anaesthetics : their uses and administration. osis andrendered ether at once a safe and satisfactory ansesthetic, isbased upon the principle that the patient is able without dis-comfort to inhale nitrous oxide, and when unconscious, ethervapour in increasing strength is mixed with the gas, and finallyether vapour inhaled by itself. In this way there is no breakin the continuity of the narcosis and no sudden transition, i.e.nitrous oxide gas first, then this ansesthetic mixed with ethervapour, and finally ether vapour alone. I/O ANESTHETICS. Many forms of apparatus have been suggested since C Stock Photo
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Reading Room 2020 / Alamy Stock Photo

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2CEMNCN

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1944 x 1286 px | 32.9 x 21.8 cm | 13 x 8.6 inches | 150dpi

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. Anaesthetics : their uses and administration. osis andrendered ether at once a safe and satisfactory ansesthetic, isbased upon the principle that the patient is able without dis-comfort to inhale nitrous oxide, and when unconscious, ethervapour in increasing strength is mixed with the gas, and finallyether vapour inhaled by itself. In this way there is no breakin the continuity of the narcosis and no sudden transition, i.e.nitrous oxide gas first, then this ansesthetic mixed with ethervapour, and finally ether vapour alone. I/O ANESTHETICS. Many forms of apparatus have been suggested since Cloversfirst one was designed, but none have, I think, any materialadvantage over the original, except perhaps those in whichthe bore of the air passage is enlarged. Clovers large gas and ether inhaler.—The presentform is the same in principle, but has been modified andimproved. It is shown in the diagrams given below. Thegas supply is derived from steel cylinders (fig. 38), placedhorizontally, and the gas traverses an indiarubber tube to the. Fig. 38.—Apparatus for the nitrous oxide and ether sequence.In the figure the ether tap is turned on, but the NoO tap is turned off. ether chamber. This is shown is fig 38. The apparatus is soarranged that gas can be given alone or with ether. By turninga tap the gas passes directly into the receiver containing ether,and having traversed it and passed over the surface of theether, escapes into the face-piece along a tube which traversesthe Cattlins bag The amount of admixture of gas and etheris regulated by a tap, which opens the two apertures. Thewhole apparatus is light, and is suspended by a hook from theadministrators buttonhole.* In this apparatus the gas supply is controlled by the foot,* The apparatus is made by Messrs. Mayer and Meltzer, of London. ETHER. 171 which, placed upon the foot-piece, rotates it from right toleft to turn the gas on, and from left to right to turn it off.When the cylinders are placed horizontally, the e

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