IMPROVED ELECTRICAL BREAST PUMP

摘要

A vacuum control system controls the amount of time that pressure is applied to a breast and the amount of time no pressure is applied to the breast, independent of the vacuum level. The amount of time that pressure is applied to a breast and the amoun t of vacuum applied to the breast cups can be varied by the user. A disposable biologica l filter isolates the pump from the breast cups. The biological filter is packaged in a housing th at has an O-ring push-in connector to connect the collection system to the pump. The vacuum applied to the breast cups is monitored. The control system maintains the vacuum at a level set by the user. A second higher level is used as a safety threshold. The control system shut s down the pump when this higher level is sensed. The breast cup is constructed to provide a controlled collapse when vacuum is applied to mimic the suckling of an infant.