Manual breastpump with stimulation feature

A manually operated breastpump assembly, comprising:

• a shield having an interior receiving surface which defines an interior sized and shaped to receive a woman's nipple and at least some adjacent breast;
• a base to which said shield is attached;
• a conduit structure in fluid communication with said interior of said shield;
• and
• a hand pump mechanism communicating with said conduit structure, said pump mechanism including a removable handle mounted to said base operating as a lever rotatably mounted with respect to a pivot of said base, and an expansible chamber device included as an integral part of said handle and removably separate from said base, wherein said expansible chamber defines a pressure chamber on said handle, said pressure chamber being in fluid communication with said conduit structure.

A manually operated breastpump assembly, comprising:

• a shield having an interior receiving surface which defines an interior sized and shaped to receive a woman's nipple and at least some adjacent breast;
• a base including a conduit structure therein, said conduit structure in communication with said interior of said shield, to convey air pressure changes to said interior of said shield and also convey milk expressed from the breast;
• and
• a pump mechanism having a handle including an inner surface and a diaphragm sealably mounted to said handle, said diaphragm further including a flexible membrane and a rigid puller attached to said diaphragm, said handle inner surface and membrane together defining a vacuum chamber therebetween which is separate from said base, said vacuum chamber being in communication with said conduit through an opening in said rigid puller, a first extension formed on said handle, said first extension operatively associated with a first pivot point on said rigid puller such that movement of said first extension in an arc about said first pivot point from a rest position causes said diaphragm to expand said vacuum chamber a first volume, and a second extension formed on said handle, the movement of which in an arc about a second pivot point on said rigid puller from said rest position causes said diaphragm to expand said vacuum chamber a second and lesser volume than said first volume.

A manual pump mechanism as for a breastpump, comprising:

• a base;
• a handle rotatably mounted with respect to a pivot on said base;
• and
• an expansible chamber device included on said handle and separate from said base defining a pressure chamber on said handle, said chamber defining a volume, said expansible chamber device being movable by movement of said handle relative to one of a first pivot or a second pivot, to change said volume to produce a change in pressure, and an outlet in said chamber through which said change in pressure is communicatable, wherein said handle is operative in a first mode of operation defined by a first discrete predetermined movement of said handle for producing a first change in said volume and a second mode of operation defined by a second discrete predetermined movement of said handle for producing a second change in said volume which is different than said first volume.

A manually operated breastpump assembly, comprising:

• a shield having an interior receiving surface which defines an interior sized and shaped to receive a woman's nipple and at least some adjacent breast;
• a base to which said shield is attached;
• a conduit structure in communication with said interior of said shield;
• a handle mounted to said base on a pivot and rotatable with respect to said pivot;
• and
• an expansible chamber device communicating with said conduit structure, said expansible chamber device comprising a flexible diaphragm mounted in a well formed on said handle with said diaphragm traveling with said handle and defining a vacuum chamber carried by said handle, wherein movement of said handle causes said expansible chamber to change a volume of said vacuum chamber to produce a first pressure change which is communicated to said shield.