The system has a pin (10'') fixed in an organic structure by screwing or welding. A synthesis plate (20') is fixed in the pin by an absorbable or non-absorbable biocompatible material and a connection that is formed by energy application, by heat, ultrasonic welding and/or friction. The pin and synthesis plate form a non-detachable continuous unit during utilization. The pin is made of biocompatible or absorbable material, where the synthesis plate is made of transparent or absorbable thermoplastic material e.g. thermoplastic resin. An independent claim is also included for a method for connecting a multi-part medical synthesis system.
