Patent ID: 7354418
Filing Date: 2008-04-08
Classification: A61M

Abstract:
1. An express kit for a breast pump, comprising: a manifold; a milk collection vessel releasably secured to the manifold; a breast cup secured to the manifold and integral with or separate from the manifold, the breast cup having a cup funnel section and a cup throat; and a liner in the breast cup, the liner having a funnel portion, a throat portion and a transitional portion between the funnel portion and the throat portion; wherein the liner forms a pulsation chamber with the cup, without a pad or other device intervening between the liner and the cup; the liner has an integral honeycomb structure on the surface of the funnel portion of said liner between the liner and the cup, the honeycomb structure creating a forced space between the funnel portion of the liner and the cup, only in the funnel portion of the liner, the honeycomb structure being an outwardly extending structure that prevents any portion of the liner funnel surface in the forced space from contacting the breast cup; and the breast cup has a ridge located between the funnel portion and throat portion of the breast cup, and the liner has a lip located at a junction of the honeycomb structure and the transition portion of the liner, which ridge and lip are configured to create a partial seal inside the said pulsation chamber.