. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . s for instance. The bladder is of course more accessible to other means of than many other parts. Instrument for Photographing Calculi in the Bladder. — The follow-ing cut shows an instrument Rollins devised in 1896 for photograph-ing a calculus in the bladder. It consists of an aluminum tube long and centimetres wide, which is closed with asolid piece of metal at one end, while to the other is fitted a handlewhic
. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . s for instance. The bladder is of course more accessible to other means of than many other parts. Instrument for Photographing Calculi in the Bladder. — The follow-ing cut shows an instrument Rollins devised in 1896 for photograph-ing a calculus in the bladder. It consists of an aluminum tube long and centimetres wide, which is closed with asolid piece of metal at one end, while to the other is fitted a handlewhich screws on (see HH, Fig. 390). FC is a thin piece of metal withgrooved edges which holds several photographic films or pieces ofbromide paper that should be about as wide as the tube and about halfits length. ^ British Medical Journal, 1897, P- 075; International Medical Annual, 1898, p. 338. 62 2 THE ROENTGEN RAYS IN MEDICINE AND SURGERY Direction for its Use. — The instrument should be got ready for usein a dark room. To put the films in place the sliding piece FS isremoved from FC, and the films are slid into the grooves and pushed to. Fig. 390. Instrument for photographing a calculus in the bladder. (Rollins.) the end as far as they will go. FS is then put back to hold the films inplace, and the tube is then pushed inside of NB, and the round handleH screwed on. The patient is placed on his back and the tube above the bladder;the instrument with the convex side up is then inserted into the rectumand held in such a position that the films are brought just below thebladder. After a proper exposure the instrument is taken out andthe films are developed. In the two cases in which I have used thisinstrument nothing was found on the films; calculi were present,however, and were removed, but proved on analysis to be made upof uric acid. This instrument may also be passed into the vagina and a photographmay then be taken of the bladder. I give below an account of the majority
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