The present invention provides microfluidic devices and methods for using the same. The plurality of slit-like apertures are divided into a first slit-like aperture group including a plurality of slit-like apertures extending in a first direction and a second slit-like aperture group including a plurality of slit-like apertures extending in a second direction different from the first direction. The apparatus comprises a latch frame mounted in the circuit breaker housing. The engaging surface includes at least portions of the outer spherical surface of the spherical portion of the pedal and the spherical portion of the pedal is located along the pedal longitudinal axis such that the pedal has a radially symmetrical cross sectional shape along the pedal longitudinal axis. An obtaining unit obtains the second information in accordance with the determination result. Further, a controller identifies a position of the occupant model when the airbag suppression system detects that the occupant model has entered the suppression zone.