Clinical lectures on the surgical diseases of the urinary organs . into thebladder, the curved end being directed upwards towards theroof of the urethra. Sometimes a well-polished vulcanizedrubber catheter (Fig. 39) answers best. A timid patient likesit, as less liable to pain him; but if the prostatic urethra isnarrowed from pressure of the lateral lobes it is not so easyto introduce as a more rigid instrument. It has also the dis-advantage that, its walls being stout, the channel is com-paratively narrow, so that the urine, if at all thick, will notflow through it readily. On the other hand,
Clinical lectures on the surgical diseases of the urinary organs . into thebladder, the curved end being directed upwards towards theroof of the urethra. Sometimes a well-polished vulcanizedrubber catheter (Fig. 39) answers best. A timid patient likesit, as less liable to pain him; but if the prostatic urethra isnarrowed from pressure of the lateral lobes it is not so easyto introduce as a more rigid instrument. It has also the dis-advantage that, its walls being stout, the channel is com-paratively narrow, so that the urine, if at all thick, will notflow through it readily. On the other hand, as it can beboiled without injury, it is readily rendered aseptic, and as it 2 GENERAL TREATMENT OF ENLARGED PROSTATE coils up in a small space it can be carried about very soft and pliant cylindrical catheter will pass readily andanswer best when there is no obstruction caused by theoutgrowth in the bladder. When this outgrowth is verymarked, a bicoudee catheter (Fig. 41), or a well-curved oneterminating in a coude (Fig. 42), may be necessary to over-. Fig. 41
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