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US 2020/0046961 A1Published application
Check valve
AssigneeICU Medical, Inc.
InventorDavid Nelson
Life of this patent
Estimating the term…
Abstract
A check valve for use in a fluid pathway. The check valve may have a diaphragm and a plurality of supports extending from the diaphragm. The check valve and supports have a line of symmetry, and deformation of the check valve as it moves from a closed position to an opened position can be generally along the line of symmetry.
Claims10
A medical check valve for use in a medical device to provide one-way fluid flow between a first fluid location and a second fluid location, said check valve comprising:
- a flexible diaphragm comprising a top surface, a bottom surface, and a side wall between the top surface and the bottom surface;
- a first support member extending from the bottom surface of the flexible diaphragm and a second support member extending from the bottom surface of the flexible diaphragm, the first support member and second support member positioned to define a line of symmetry that bisects the bottom surface without passing through the first support member or the second support member;
- wherein the flexible diaphragm has a first position in which the top surface is generally planar and is configured to seal against a fluid opening and a second position in which the top surface of the diaphragm is curved around the line of symmetry and is configured to be displaced from the fluid opening.
10-28. (canceled)
Dependencies are inferred from the claim text.