The principles and practice of surgery: embracing minor and operative surgery : with a bibliographical index of American surgical writers from the year 1783 to 1860 : arranged for the use of students (Volume 2) . s of the cock in the can-ister, Plate XXIII. Fig. 23, or by simply resorting to the caoutchouc bot-tle, Plate XXIII. Fig. 22. § 7.—Catheterism of the Eustachian Tube. When the position of the orifice of the tube in the pharynx is recollected,Plate XXVIII. Fig. 1, it will be seen that the introduction of the earcatheter through the nostril and pharynx is also a simple operation, though
The principles and practice of surgery: embracing minor and operative surgery : with a bibliographical index of American surgical writers from the year 1783 to 1860 : arranged for the use of students (Volume 2) . s of the cock in the can-ister, Plate XXIII. Fig. 23, or by simply resorting to the caoutchouc bot-tle, Plate XXIII. Fig. 22. § 7.—Catheterism of the Eustachian Tube. When the position of the orifice of the tube in the pharynx is recollected,Plate XXVIII. Fig. 1, it will be seen that the introduction of the earcatheter through the nostril and pharynx is also a simple operation, thoughthe verbiage in which it has often been described tends to create a belief inits being diflBcult. Aurists have recommended various instruments for theperformance of this operation, and the catheters most in repute are thosefigured in Plate XXIII. Figs. 12, 13. Ordinary Operation.—The patient being seated, with the head slightlythrown backward and firmly supported, take the catheter in the right hand CATHETERISM OP THE EUSTACHIAN TUBE. 225 and, after oiling it, introduce it into the nostril on the side to be , keeping the point of the instrument upon the floor of the nostril, and Fig. Inflation of the cavity of the tympanum by the breath of the operator; the tube being attached to the-Eustachian catheter previously introduced into the nostril of the patient. (After Nature.) its convexity upward and inclined against the septum narium, slide it back-ward until it reaches the soft palate, as may be readily told by the sense oftouch, or by the patient making a slight gulp or effort to swallow. At thismoment, turn the point of the catheter upward and outward by rotating it aquarter of a circle, and then, by a slight movement forward and backward,slip it into the orifice of the tube, when it will pass as easily as a catheter canbe made to enter the bladder. The proper position of the instrument maybe at once known by its steadiness, as well as by the sensation o
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