Joint construction for a medical guide wire

摘要

A joint construction for a medical guide wire joining a tubular member (282 or 331) to a helical coil (288) has an elongate element extending therethrough. The tubular member has an outside diameter no greater than the outside diameter of the coil. A wall of the tubular member defines a passage extending through the tubular member and has an exterior surface. The tubular member has an end portion with a helical recess (286 or 333) formed therein extending through the outer surface to form a helical thread. The helical coil has a passage extending therethrough and an end portion threaded into the helical recess which fixedly secures the coil to the tubular member so that the passage in the tubular member and the passage in the coil are in alignment.