approximately 3 5 feet with a section of approximately 0 5 foot approximately six inches of exposed mesh layer 20 that is the second extrusion pass may produce a length of finished catheter body 72 that includes discrete sections in which the outer layer 22 is not deposited this may be accomplished by for example switching the extruder between an on mode in which material is deposited on the catheter body and an off mode in which material is not deposited on the catheter body as the intermediate unfinished catheter body 62 passes through the extruder once the second extrusion pass is complete the finished catheter body 72 may be cut in the exposed mesh sections into usable lengths with each end of each usable length having an exposed portion of mesh layer or a portion having no outer layer 22 these end portions may facilitate various finishing steps such as balloon attachment pull wire insertion electrode attachment and the like in contrast to the present invention currently known methods necessitate an additional step of removing the outer layer 22 in the catheter body usable length end portions in order to finish the device if it is desired to produce a catheter similar to that shown in fig1 in which a minor lumen 14 is located outside the mesh layer 20 at least one length of minor lumen tubing 48 may be placed proximate the intermediate unfinished catheter body 62 and passed through the first 52 or second 68 extruder in the second extrusion pass and the outer layer 22 may be extruded over the at least one minor.