Patent ID: 6290671
Filing Date: 2001-09-18
Classification: A61M

Abstract:
A breast pump comprising:(a) breast enclosing means for forming a vacuum chamber over a woman's breast;(b) vessel means for collecting breast milk;(c) channel means for conducting fluid from the enclosing means to the vessel means;(d) a vacuum source;(e) first passage means communicating between the vacuum source and the vessel means;(f) second passage means communicating between the vessel means and the atmosphere; and(g) regulating means in the second passage means for leaking atmospheric air into the vessel means, whereby the vacuum level in the vessel means may be adjusted, the regulating means including a rotary cover having valve means for opening and closing the second passage means in response to rotation of the cover, a body, and means for removably attaching the body to the vessel means, and attachment means for attaching the cover to the body while permitting rotation of the cover relative to the body.