An instrument for applying a suture to a trocar wound includes an obturator coupled to a central shaft and a coaxially disposed skin pressure plate. The obturator and skin pressure plate are movable relative to each other, and function together to position the tissue and needles relative to each other....http://www.google.ca/patents/US7320693?utm_source=gb-gplus-sharePatent US7320693 - Methods and instruments for closing laparoscopic trocar puncture wounds
