... in the gynecology and obstetrics diagnosis. Functional characteristics:The KJ-4001 B ultrasonic diagnostic instrument (hereinafter refers to as instrument) ... performance is reliable.Technical Parameters:Structure: portable and trolley, KJ-4001, 4002, 4003 and 4003(workstation)Display mode: Convex array: ... to check intrauterine equipment, pregnancy and so on. KJ-4001 Portable B ultrasound machine