Patent ID: 7201603

Claim:
A wire guide that includes a first tube having a first axis and a second tube having a second main axis extending perpendicular to the first tube axis, with the second tube being pivotal about said first axis relative to said first tube, wherein: said first tube has a rear end portion and said second tube has a backshell portion with an axis that is coincident with said first axis and that is pivotally coupled to said first tube rear end portion, with one tube portion lying within the other, with a primary one of said tube portions having a groove that is curved about said first axis, and with a secondary one of said tube portions having a rolling element holder; at least one rolling element having a first element part lying in said groove to roll along it and having a second element part confined in said element holder, with said holder limiting roll element movement in said holder; said groove extends by a limited angle of less than 360° about said first axis and said primary tube portion forms stops at opposite ends of said groove that prevent roll element movement past part of the corresponding stop.