[Set of trocars for drainage of the urinary bladder in acute urinary retension].

At present urologists give preference to drawing the urine by puncturing the anterior wall of. the urinary bladder by means of a trochar with introduction of a drain-tube. A set of 3 types of trochar-drain tubes of a similar construction but differing in their diameter are proposed for superpubical drawing of the urine. By using a simple in its arrangement and a little-traumatic trochar-drain tube a single-stage cystotomy can also be effected with the help of Foley, Maleko or Pezzer's catheters. Not a single of 152 patients subjected to superpubical drainage with these instruments suffered any complications.