Patent ID: 6213974
Filing Date: 2001-04-10
Classification: A61M

Abstract:
A tip assembly for a catheter shaft of a steerable catheter, the catheter shaft having first and second steering wire lumens extending lengthwise therethrough, said tip assembly comprising:(a) a length of steering wire having a first leg extending through said first steering wire lumen, a second leg extending through said second steering wire lumen, and a looped segment connecting said first and second legs;(b) a first wear-resistant sleeve within said first steering wire lumen adjacent said looped segment of said steering wire, said first wear-resistant sleeve defining an opening therethrough for passage of said first leg of steering wire; and(c) a second wear-resistant sleeve within said second steering wire lumen adjacent said looped segment of said steering wire, said second wear-resistant sleeve defining an opening therethrough for passage of said second leg of steering wire;wherein said looped segment of said steering wire comprises a coined portion having an expanded outer dimension larger than said openings through said first and second wear-resistant sleeves.