Hana ʻia ka catheter me ka nylon kūikawā me ka elasticity maikaʻi, ka ikaika tensile kiʻekiʻe, ʻaʻole maʻalahi e haki. ʻO ia me ka hōʻailona unahi akaka a me ka laina pale X-ray, kahi e hoʻoponopono maikaʻi ai i kahi. Hiki ke waiho i loko o ke kino kanaka no ka manawa lōʻihi, a hoʻohana ʻia no ka anesthesia ma mua a ma hope o ka hana.