초록 ▼

A breast shield is provided that includes a hood body with an outer rim within which a breast is received and a shield extension portion extending downstream from the outer rim. A milk drain is connected to the shield extension portion. A vacuum isolation element including a collapsible membrane is

A breast shield is provided that includes a hood body with an outer rim within which a breast is received and a shield extension portion extending downstream from the outer rim. A milk drain is connected to the shield extension portion. A vacuum isolation element including a collapsible membrane is connected to the shield extension portion of the hood body. The collapsible membrane portion includes an interior cavity communicating with the vacuum source. The interior cavity is effective to create a negative pressure within the shield extension portion when collapsed by vacuum to isolate the vacuum source from expressed milk, with milk being channelled through the insert to a collector, such as a milk bottle.

대표청구항 ▼

[ What is claimed is:] [1.] An insert for a vacuum device which applies suction to a body part, the vacuum device including a shell having an interior adapted to be applied over the body part, comprising:a liner insert portion generally conforming to the interior of the shell and forming a liner bet

[ What is claimed is:] [1.] An insert for a vacuum device which applies suction to a body part, the vacuum device including a shell having an interior adapted to be applied over the body part, comprising:a liner insert portion generally conforming to the interior of the shell and forming a liner between the shell and the body part;a collapsible insert portion forming an enclosure, with an opening defined in the enclosure which communicates with a source of vacuum;a passageway defined within the insert which communicates with the body part;the collapsible insert portion isolating the passageway and the body part from the source of vacuum, with vacuum from the source of vacuum causing the collapsible portion to collapse and thereby transmit the vacuum as a suction force within the shell to pull on the body part.