The Practitioner . each of which a ureter opens, and fromeach of these compartments the urine is drained. This isachieved by means of urinary separators, of which therecently invented instruments of Luys and Cathelin representthe most perfect mechanism. These instruments will, therefore,be described. In the second method, a catheter is introduced into theureter, and this tube is, therefore, prolonged to the surface,without the intervention of the bladder. This object is attainedin two ways, either by means of the catheter cystoscope, ofwhich the instruments of Nitze, Casper, and Albarran areno
The Practitioner . each of which a ureter opens, and fromeach of these compartments the urine is drained. This isachieved by means of urinary separators, of which therecently invented instruments of Luys and Cathelin representthe most perfect mechanism. These instruments will, therefore,be described. In the second method, a catheter is introduced into theureter, and this tube is, therefore, prolonged to the surface,without the intervention of the bladder. This object is attainedin two ways, either by means of the catheter cystoscope, ofwhich the instruments of Nitze, Casper, and Albarran arenow in use, or by distension of the bladder with air andcatheterization by what might be termed the open method of Kelly through a tube. The latter method is applicable onlyto the female bladder. I.—METHODS OF SEPARATING THE VESICAL —Luys Instrumejit.—Dr. Luys separator consists oi ashank and a handle. The shank is formed by a central metalstem, flattened from side to side, on each side of which a metal. Fig. I. Dr. Luys Separator. 8o8 THE PRACTITIONER. catheter is fitted. The distal end of the shank is curved to theextent of about half a circle—the curve being so placed thatwhen the instrument is held horizontal, all of the curve, exceptthe ver} tip of the instrument, lies below the level of thestraight portion of the shank. The central stem is inseparablefrom the handle of the instrument, but the catheters may beremoved. Attached, almost to the end of the central flattened stem,is a fine chain which, when loose, lies snugly in the concavityof the curve, and is connected under a bridge, with a fine rodpassing along the upper surface of the straight portion ofthe stem. When drawn tight by a screw in the handle,the chain bridges across the half circle curve like the stringof a bow. A fine rubber tube fits over the whole of themedian stem, allowing a screw at the tip of the stem topass through an opening at its end. With the chain slack, therubber-covered central st
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Keywords: ., bookcentury1800, bookde, bookpublisherlondon, booksubjectmedicine
