A vascular suturing device is disclosed which includes an elongated
tubular body defining opposed proximal and distal end portions and having
a longitudinal axis extending therethrough, the body including an inner
tubular member, an outer tubular member and a central tubular member
disposed between the inner and outer tubular members. The inner tubular
member and the central tubular member are mounted for movement relative
to the outer tubular member about the longitudinal axis of the body for
sequentially driving a pair of suture needles through the wall of a blood
vessel to close an incision formed therein. A vascular dilator having a
tapered distal tip portion is slidably supported within the inner tubular
member and is dimensioned to extend beyond the distal end of the inner
tubular member for positioning the suturing device at the incision in the
wall of the blood vessel. The dilator is configured to move axially
between an extended position and a retracted position. A biasing element
and a retaining pin are associated with a proximal end of the dilator.
The biasing element is adapted and configured for urging the dilator in
the retracted position and the retaining pin is position so as to secure
the dilator in the extended position.