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US 2007/0179439 A1Published application
Valve, in particular for a breast shield set
AssigneeMedela Holding AG
InventorsStefan Vogelin, Urs Stadelmann
Life of this patent
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AssigneeMedela Holding AG
InventorsStefan Vogelin, Urs Stadelmann
Estimating the term…
The valve comprises a valve seat (6) and a valve body (7) with a circular diaphragm (70). The valve body (7) is arranged over the valve seat (6) in order to close the latter sealingly when it bears on the valve seat (6). The valve seat (6) and the valve body (7) have openings (64, 65, 71, 73) which are offset relative to one another and which form a free passage when the diaphragm (70) of the valve body (7) lifts. The diaphragm (70) of the valve body (7) has elongate openings (71) which are uniformly distributed along a circle in the periphery of the diaphragm (70), the circle having approximately the same center point as the diaphragm (70). The elongate openings (71) are separated from one another by webs (72), the diaphragm (70) being designed to be weaker in the area adjacent to these webs (72). It can be produced simply and inexpensively, is reliable in its use, and scarcely deforms at all even in the case of considerable variations in temperature. It is suitable in particular for use in breast shield sets, for reducing the dead volume.
A valve having a valve seat and a valve body with a circular diaphragm, the valve body being arranged over the valve seat and closing the latter sealingly when it bears on said valve seat, and the valve seat and valve body having openings which are offset relative to one another and which form a free passage when the diaphragm of the valve body lifts, wherein the diaphragm of the valve body has elongate openings which are uniformly distributed along a circle in the periphery of the diaphragm, and wherein the elongate openings are separated from one another by webs, the diaphragm being designed to be weaker in the area adjacent to these webs.
A breast shield set for pumping off human breast milk, the breast shield set comprising a breast shield, a breast shield connector with a threaded attachment for connection to a milk collection vessel, and a valve for limiting a dead volume during pumping off of the breast milk, in which the valve has a valve seat and a valve body closing the latter, wherein at least one part of the breast shield set is made from a non-autoclavable material.
Dependencies are inferred from the claim text.