The second bead has an interior stem and an exterior stem space from the interior stem defining a cavity therebetween.

In some embodiments, the inner shaft may be rotatable in relation to the outer shaft and/or the outer shaft may be rotatable in relation to the inner shaft.

The device includes an inner shaft (20) within a hollow outer shaft (1).

A tubular insert (100) for a vessel comprises an inner stent (104) and an outer stem (108).

The inner shaft is extended out from the outer shaft to the distal side.

The inner shaft has an inner shaft wall defining a guidewire lumen for passage of a guidewire.

An inner shaft is movably carried within the lumen of the elongated catheter shaft.

Each drilling stem section includes an inner stem section (111) and a hollow outer stem section (112).

A cap (112) is associated with the distal end (110) of the inner shaft (108), the cap (112) movable between a first position adjacent the inner shaft (108) and a second position displaced from the inner shaft (108).

A hold open rod is provided that includes an outer tube, an inner tube, an inner rod, and a friction pad.

At least a portion of the inner stem is disposed within the outer stem.

A handle may be coupled to the inner shaft.

The inner rod is manually retracted into the interior bore of the outer rod to cause the outer rod to move the loops of suture off the inner rod end and over the needle in forming a knot in the suture.

When the locking device is unlocked, the inner sleeved rod (8) slides in the outer sleeved rod (9), and when the locking device is locked, the inner sleeved rod expands to be locked within the outer sleeved rod in any position.

The outer housing (106) is slideable relative to the inner shaft (108) such that a portion of the inner shaft (108) may be revealed.