| 摘要 |
A hand-actuated retention catheter, comprising a tube having a distal end, and and outer and inner surfaces, the inner surface defining an inner lumen , an overcoat layer encircling the tube, the overcoat layer having an interior surface, a cavity interposed between the tube and the overcoat layer , said cavity encircling the tube and being defined by portions of the outer surface of the tube in cooperation with portions of the interior surface of the overcoat layer , a restriction means; wherein the overcoat layer includes an expandable resilient balloon section proximate the distal end, a fluid reservoir section proximal thereto, and a catheter sleeve section interconnecting said balloon section and said reservoir section, said hand-actuated retention catheter further comprising a means for limiting the lateral ballooning of the reservoir section ; said means for limiting lateral ballooning encircling the reservoir section to limit the lateral ballooning thereof, said means for limiting lateral ballooning not substantially restricting the flow of fluid from the balloon portion to the fluid reservoir portion of the cavity . <IMAGE> |
