Self-inflating and self-cleaning catheter assembly

摘要: An outer envelope and an inner drainage tube are formed from elastomeric material with molded in reinforcing guiding elements. The engages within the to form a flexible catheter having smooth surface pair of interior lumens. cylindrical lumen through serves as channel second lumen, by annular cross sectional space between tubes, provides passage for introduction irrigating fluid or like. A mechanical expanding device is provided near distal end manually operated actuator proximal external end. detachable auger assembly can be introduced into first rotated draw down clots debris bladder which might obstruct passage.