Many people use the terms ocean and sea interchangeably when speaking about the ocean, but there is a difference between the two terms when speaking of geography (the study of the Earth's surface).
The peritoneal dialysis catheter is composed of a flexible silicone tube with an open-end port and several side holes to provide optimal drainage and absorption of the dialysate. The extraperitoneal component of the catheter has either one or two Dacron cuffs. The Dacron cuffs are for optimal ingrowth and fixation.
SUPRAPUBIC CATHETERS. Suprapubic catheters are recommended by some physicians for short-term use when a catheter is needed for gynecologic, urologic and other surgeries. 1 Theoretically, there are fewer microbes on the abdominal wall than on the perineum, creating less risk for infection. Another advantage is easier catheter changes.