BREASTPUMP WITH FUNCTIONAL VACUUM PULSES

A method and system for enhancing expression of milk from breast alveoli includes providing a pump that delivers a pulsed vacuum. The pulsed vacuum may be delivered by a vacuum pump employing a rigid piston that operates as a multi-stroke accumulator pump. In an embodiment, a piston head of the rigid piston undergoes a non-linear motion relative to a sidewall of a cylinder of the pump, resulting in an oscillatory impulse on the interior of the vacuum chamber in the cylinder. The vacuum pulse frequency of the pump is applied over a cyclical vacuum frequency that would otherwise be applied had the piston head only moved up and down while maintaining a perpendicular relationship to the sidewall of the cylinder. 用于增强从乳腺泡中挤出乳汁的方法和系统包括提供输送脉冲真空的泵。脉冲真空可由采用刚性活塞的真空泵输送，该泵用作多冲程蓄能器泵。在一个实施例中，刚性活塞的活塞头相对于泵的汽缸的侧壁进行非线性运动，从而在汽缸中的真空室的内部产生振荡脉冲。将泵的真空脉冲频率施加在循环真空频率之上，否则，如果活塞头仅上下移动，同时保持与汽缸侧壁的垂直关系，则施加循环真空频率。