A text-book on diseases of the ear, nose and throat . ion-Tul)e.—This instrument is the highlyimportant adjuvant of the Eustachian catheter 5 in fact, inso far as the latter is of aid in an objective examination, itowes that power to the auscultation-tube. The latter con-sists of a yard of rubber tubing, eight millimetres in itsoutside diameter. Black rubber tubing is preferable, beingmore lasting and less sulphurous in odor than the ordinarydomestic white rubber tubing. Upon one end of this tubethere should be a white bone end-piece made to fit thesurgeons ear ; at the other end there should
A text-book on diseases of the ear, nose and throat . ion-Tul)e.—This instrument is the highlyimportant adjuvant of the Eustachian catheter 5 in fact, inso far as the latter is of aid in an objective examination, itowes that power to the auscultation-tube. The latter con-sists of a yard of rubber tubing, eight millimetres in itsoutside diameter. Black rubber tubing is preferable, beingmore lasting and less sulphurous in odor than the ordinarydomestic white rubber tubing. Upon one end of this tubethere should be a white bone end-piece made to fit thesurgeons ear ; at the other end there should be a blackend-piece for the patients meatus. In using the ausculta-tion-tube, one end should rest snugly in the meatus of the ear catheter-ized, while the other end must rest equally well, though not too tightly,in the examiners ear. Let it be supposed, for example, that the patients left ear is to becatheterized, and that the auscultation-tube is also to be used. Let theexaminer place his end of the auscultation-tube in his left ear and bring the. Eustachian cathetei; IXSTRUMEXTAL EXAMINATION OF THE EAR. 83 tube loosely around behind his neck and over his right shoulder, placingthe other end of the tube in the patients left ear. If the tube be thus
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Keywords: ., bookcentury1900, bookdecade1900, bookidtextbookondi, bookyear1901
