Catheter having improved torque response and curve retention

摘要

A medical device and methods for making and using the same. The medical device may include a core member or core wire and a braid disposed about the core member. The braid is made up of a plurality of wires. At least one of the wires making up the braid includes a section having a non-circular cross-sectional shape and another section having a generally circular cross-sectional shape continuous with the non-circular section. The methods for making these types of medical devices may include providing a plurality of wires and altering the cross-sectional shape of a portion of the wires. The wires having the altered cross-sectional shape can be formed into a braid and disposed about the core member.