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US 12,734,280 B2Granted
Expression assembly for a breast pump and a breast pump having the expression assembly
AssigneeKoninklijke Philips N.V.
InventorsGijsbert Hendrik Van Veldhuizen, Camiel Gubbels, Coen Petrus Martinus Claassen, Christoph Dobrusskin
Life of this patent
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Abstract
An expression assembly for breast pump comprises a diaphragm, a cover over the diaphragm to define a sealed space between them, and a breast shield to which the cover and diaphragm are coupled. The diaphragm defines a cavity having an open end for receiving a nipple of a user and a closed end. The open end is angled back at the top to cover more of the top of the breast. This enables the diaphragm to provide better stimulation of the breast as well reducing leakage.
Claims14
An expression assembly for a breast pump comprising:
- a diaphragm;
- a breast shield to which the diaphragm is coupled, wherein the diaphragm is formed of a flexible membrane and comprises a cavity having an open end for receiving a nipple of a user and a closed end, wherein the open end has top and bottom parts which connect to the breast shield, wherein:
- the top part is set further back from the closed end in a direction parallel to a central forward outward axis of the diaphragm than the bottom part and a milk flow passage is defined at the bottom part of the open end.
Dependencies are inferred from the claim text.