Schematically presented stepwise procedure of sutureless vascular anastomosis by the NVC. A) NVC in a front view (2D cut). B) Proximal and distal part of artery. C) Female ring is located initially in the distal part of blood vessel. D) Male and female rings are situated in the proximal and distal part of blood vessel. E) Introduction of inner tube in the distal blood vessel. F) Introduction of inner tube in the distal and proximal blood vessel. G) The final form of anastomosis.