A practical treatise on the diseases of the ear including the anatomy of the organ . phy of the mucousmembrane. The apparatus required for the injection of steam into thecavity of the tympanum, consists of the following appliances: 1. An apparatus for generating the vapor. A nickel-plated copper flask is the best for this purpose,although a glass flask used over a sand-bath will do very only objection to the glass flask is, that the flame mayleap beyond the level of the water in the flask, and break it,as has often occurred to me. Two glass tubes are placed inthe cork, and a very minu


A practical treatise on the diseases of the ear including the anatomy of the organ . phy of the mucousmembrane. The apparatus required for the injection of steam into thecavity of the tympanum, consists of the following appliances: 1. An apparatus for generating the vapor. A nickel-plated copper flask is the best for this purpose,although a glass flask used over a sand-bath will do very only objection to the glass flask is, that the flame mayleap beyond the level of the water in the flask, and break it,as has often occurred to me. Two glass tubes are placed inthe cork, and a very minute opening for the escape of steam. * Transactions of the American Otological Society, 1870. STEAM. 303 A piece of flexible rubber tubing is placed over each of theglass tubes. In the free end of one of the tubes is a nozzleadapted to the Eustachian catheter; in the other a tip adaptedto an ordinary air-bag. 2. A hard-rubber Eustachian catheter. A metallic instru-ment cannot be used, on account of its becoming too hot to beborne. Many practitioners keep the catheter in place by a. Apparatus for Steaming Hie MiddU holder; but I always employ my fingers for that purpose. gives the following account of the method of forcingthe steam into the catheter, a method which I have foundimportant to be observed in detail. The steam may be gener-ated by a gas-burner, as depicted in the cut, or by an alcohollamp. I prefer the former. The catheter should be placed in the mouth of the Eusta-chian tube, and retained in position by the catheter-holder;then the small nozzle of the steam apparatus being in theouter end of the catheter, steam can be forced to the middleear by sharp pressure on the air-bag. If the pressure on the 304 USE OF FLUIDS THROUGH THE TUBE. air-bag is slow, the prolonged contact of the steam is likely tobe unpleasantly felt by the patient, and there is some dangerthat it may escape into the pharynx and provoke inflamma-tion there. On the other hand, if it be applie


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Keywords: ., bookcentury1800, bookdeca, booksubjectear, booksubjecteardiseases