File:Diseases of the dog and their treatment (1911) (14804797353).jpg

Identifier: diseasesofdogthe00ml (find matches)
Title: Diseases of the dog and their treatment
Year: 1911 (1910s)
Authors: Müller, Georg Alfred, 1851-1923 Glass, Alexander
Subjects: Horses Dogs -- Diseases
Publisher: Chicago, Ill. : Alexander Eger
Contributing Library: Webster Family Library of Veterinary Medicine
Digitizing Sponsor: Tufts University

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.—Male catheter. 170 DISEASES OF THE URINARV AND SEXUAL APPARATUS length), Fig. 69. The subject is laid on the left side or back and held inthat position by an assistant. The prepuce is pushed back behind theswelling of the gians and held firmly with the left hand (see Fig. 70).Now grasp the catheter with the right, of course, first seeing that ithas been well lubricated with some oil or cosmoline and that it containsthe wire-stylet, and introduce it into the urethra; if it is pushed forwardup the canal and meets with an obstruction at the posterior end of thebone of the penis, it is due to a flexure of the canal and also to the factthat the diameter of the urethra is less and the part at that portionhas slight contractile properties. By a gradual pressure the stricture isovercome and the catheter passed upward to the arch of the perineum;here the wire-stylet must he withdrawn from the catheter at least one-third, so as to allow the catheter to round the curve of the ischial arch; a
Text Appearing After Image:
Fig. 70.—Passing the catheter. gradual pressure soon brings it into the bladder, when the wire can beremoved entirely. In the bitch catheterization is very difficult at times, for while theinstrument should be introduced along the middle line of the vestibule,freciuently it is almost impossible to find the narrow opening of theurethra, and a vaginal speculum is sometimes necessary to locate theposition of the opening; we generally use a metallic catheter, eithersilver or German silver (Fig. 71). The instrument is passed up on thefloor of the vagina until it comes in contact with the urethral opening(see Fig. 72); this is closed with a slight sphincter (the so-called urethralvalve); this is soon overcome and the catheter passed into the bladderwithout difficulty, except in cases where the urethral opening is extremelysmall. EXAMIXATIOX OF THE PROSTATE 171 In the bitch it is rare that an examination of the urethra is necessary,but certain discharges from the vulva are of diagnostic va

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