| 摘要 |
<p>Provided is a penetration-enhancing system for an enema drug whereby an enema drug can be conveniently infused into the intestine and diffused and penetrated throughout the target lesion site. A rectal catheter comprising a catheter body (2), an extraanal balloon (3), an intraanal balloon (4) and an intestinal balloon (20) each provided on the side face of the body (2), wherein air-inlet/outlet channels (8, 9, 21) and a drug injection channel (5) are formed within the body (2). An inflatable vibrating balloon (19) is located between the intraanal balloon (4) and the intestinal balloon (20). Within the body (2), a vibrating air-channel (17), through which air that is capable of loading a dynamic air pressure change on the vibrating balloon (19) and thus allowing the vibration of the vibrating balloon (19) passes, is formed. Owing to the vibration of the vibrating balloon (19), the enema drug is allowed to penetrate the intestinal wall.</p> |
