| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-cleaning type bladder drainage device that can help one urinate whenever he wants, eliminate the need for a walking patient to wear a leg sac to collect urine and reduce infection. SOLUTION: The device has a front end whose outside diameter can pass through the urethra and a base, has an open fluid drainage groove 20 at least in a part of the outer surface and includes a flexible slender drainage member 12 cooperating with the urethra so as to drain urine through between the outer surface and the urethral wall. To hold the drainage member in a prescribed position inside the urethra, a bladder holding member 22 is provided near the front end of the drainage member. The holding means is usually spirally bent and engages with the bladder neck, preventing the drainage device from coming off. When removing it, however, by pulling the drainage device, it is straightened along the urethra and comes off. When wearing, by inserting a stylet into the lumen, it is straightened. A means to prevent the drainage member from getting moved longitudinally against the urethral wall is provided in the drainage member. |
