Subcutaneous suturing device for closing abdominal wall port of a patient

摘要

The instrument consists of a rigid cylindrical cannula (3) with an end (4) that can be inserted into the patient's abdominal wall aperture, and containing a piston (5) that is operated externally to actuate two needles (7) on a flexible supporting strip (8). Pressure on the piston causes the needles to move out of the lower end of the cannula, allowing them to penetrate the abdominal wall (2) from the inside. It also has a needle extractor (15) sliding inside the cannula coaxially with the piston and designed to draw the suture thread (25a) through the needle holes.