Silastic cups are attached to suction machine

Silastic cups are attached to suction machine

Initial pressure generated 0.2kg/cm2

Maximum pressure generated 0.8kg/cm2

or 600mmHg

The criteria is that the pressure can be generated in 2 minits so vacum cab be used in feral distress

Correct application of vacuum

Centre of the cup should be at flexion point on the sagitt suture.