Membrane rupture device for obstetrical department

The membrane rupture device comprises a membrane rupture device body, the membrane rupture device body is connected with a membrane rupture head, the top end face of the membrane rupture head is provided with a membrane rupture hole, the outer side of the protruding portion of the membrane rupture head is fixedly connected with a fixing cylinder, and the outer side of the fixing cylinder is provided with an expansion mechanism capable of guaranteeing stability of the membrane rupture head. A membrane breaking mechanism is arranged on the inner side of the fixed cylinder, the expansion mechanism comprises an inner groove formed in the outer side of the fixed cylinder, a telescopic spring is connected to the top end of one side of the inner groove, an arc-shaped plate is connected to the other side of the telescopic spring, and a movable plate is movably connected to the interior of the inner groove; and the stability of the device can be ensured after the membrane rupture device is inserted. According to the u