About Your Nephrostomy Catheter | 合法醫療器材資訊網

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This information will help you prepare to have your nephrostomy catheter placed at Memorial Sloan Kettering (MSK) and teach you how to care for it at home.

Your urinary system consists of your kidneys, ureters, bladder, and urethra. Your kidneys produce urine that collects in the renal pelvis at the top of your ureters (see Figure 1). Your ureters carry urine from the kidneys to the bladder.

Figure 1. Your kidney, renal pelvis, and ureter

The urine collects in your bladder until you need to urinate. The urine then passes out of your body through the urethra. In women, the urethra is a very short structure located in front of the vagina (see Figure 2). In men, the urethra is much longer and passes through the prostate gland and the penis (see Figure 3)....