MULTI-LUMEN DEVICE WITH NON COLLAPSABLE MINOR LUMEN

摘要

A method of producing a multi-lumen elongate body (18) for a medical device. Unlike known methods requiring a solid core (16) of material inserted into each lumen (12, 14) to maintain patency of the lumens (12, 14) during manufacture, the present method obviates the need for a solid core (16) within one or more minor lumens (12), which saves cost and production complexity. One or more material overlay and mesh (20) overlay steps may be used to produce the multi-lumen elongate body( 18), but only the main lumen may include a solid core therein during all manufacturing steps. The one or more minor lumens may each be defined by a lumen tube having a sufficient stiffness to withstand external pressure during all manufacturing steps without the need for a solid core within.