| 摘要 |
A method and apparatus for soothing and pacifying crying and colicky infants including apparatus and methods to impart a rhythmic cyclic motion of displacement to the surface on which the infant is supported, at a frequency between about twenty-five and forty-three cycles per second with an amplitude of displacement between about one eighth and one hundredth of an inch. In a preferred embodiment, methods and apparatus are included for imparting sound at an intensity of between about sixty and eighty decibels at a frequency of between about two hundred and four thousand Hertz.
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