| 主权项 |
1. A two lumen catheter for use in arterial or veinous interventional procedures for extracting thrombus or clot comprising:
a first main lumen (1) configured for sucking or aspirating a blood clot, the first main lumen extending from the distal tip to the proximal end, the first lumen comprising metal with a metal internal surface where the distal portion is constructed from a swaged, multi-filar coil structure (2), such that the individual coil wire cross-sections are substantially rectangular in shape, a proximal portion (3) of the first lumen attached to the distal portion and being made of substantially metal tubing, the proximal portion of the first lumen being metallically fused to the distal portion, the proximal portion being terminated at its proximal end with a luer adapter (8); a second lumen (4), configured to a guidwire to pass through, extending from the distal tip and exiting or terminating at a point proximal of the distal tip at a distance of 1-50 cm, the second lumen being attached adjacent to an outside wall of the first main lumen; and a distal tip structure (5) attached to the distal portion of the first main lumen that is substantially constructed of metal and angled at its distal end in an amount of 30-60 degrees from the central axis of the lumen, the distal tip being attached by metal fusion to the distal coil portion, the distal tip being externally coated with a gold plating for enhanced radiopacity. |
