A surgical suturing apparatus includes a suture housing, a needle mounted
within the suture housing for movement about an arcuate path, and a drive
assembly operably associated with the needle for controlling movement of
the needle with a suture secured thereto about the arcuate path in a
manner facilitating application of the suture to tissue. The drive
assembly includes a friction camming member that moves along the suture
housing under the control of the drive mechanism, wherein actuation of
the drive mechanism causes the friction camming member to selectively
engage and disengage the needle causing the needle to move about the
arcuate path.