Medicine A passage between two natural body channels, such as blood vessels, especially one created surgically to divert or permit flow from one pathway or region to another; a bypass.

• 分流的通管：在两种天然人体通道，如血管之间的通路，尤指通过外科手术形成的使血流从一途径或一区域转向另一处或允许血流流到另一处；分路