Patent ID: 7708704

Claim:
A component of an interventional neurovascular implant medical device, the component being movable through a micro-catheter within a body neurovascular vessel, comprising: a generally hollow tubular portion including a spiral ribbon having adjacent turns, said ribbon being between a helically oriented pathway of a plurality of open sections alternating with bridge members in end-to-end fashion along the helically oriented pathway, each bridge member being out of axial alignment with each bridge member immediately adjacent thereto, wherein said spiral ribbon defines a relatively rigid region, a relatively flexible region, and a first transition region between the relatively rigid region and the relatively flexible region, wherein the helically oriented pathway has a first pitch in the relatively rigid region, a second pitch in the relatively flexible region, and a third pitch in the first transition region, the first pitch being greater than the third pitch and the third pitch being greater than the second pitch, and wherein each bridge member has an arcuate extent in a range of approximately 10° and approximately 65°, wherein each cut section has an arcuate extent in a range of approximately 45° and approximately 270°, and wherein for each bridge member, a sum of the arcuate extents of said bridge member and of a cut section adjacent to said bridge member in said end-to-end fashion is neither a whole number factor of 360° nor a multiple of 90°.