这两天看了一下breast pump，发现象ebay之类的网上找不到二手的。
再仔细看，才知道breast pump大部分是只适用于一个人使用。多人使用有传播疾病的
危险。
按规定只有美国FDA检查过，医院级的breast pump才能多人使用。这种pump在设计上考
虑到彻底消毒因素。下面是个可以多人使用的breast pump 的列单，给姐妹们参考一下。 http://www.breastfeedingonline.com/pumps.shtml
The following pumps are are designed to be used by multiple users:
These pumps operate on a "closed system", meaning that it is impossible for
milk reach the motor, hence these are safe to be used my multiple mothers.
Hollister Elite® Hollister Lact-e®
Hollister SMB® Breast pump®
Medela Classic® Breast pump
Medela Lactina® Breast pump
Medela Symphony® Breast pump
Bailey Nurture III®
