[The intra-prostatic "partial catheter" (urological spiral) (author's transl)].

The intra-prostatic "partial catheter" (urological spiral) represents a completely new idea. The material is metal and it enables a patient to discard his indwelling catheter. Most of the time made of rubber or plastics. The spring-shaped spiral inserted in the prostatic urethra keeps the enlarged prostate lobes compressing the urethra so far apart that spontaneous voiding is again possible. The physiological function of the external sphincter is maintained due to the special form of the spiral. Voiding is effected without residual urine. By eliminating continuous contact with the outside ascending infections will no longer occur and infections already existing will heal spontaneously. The possibility of treating prostate carcinoma later on by using radioactive material with which the spiral inserted could be coated is also discussed.