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AssigneeTerumo Cardiovascular Systems Corporation
InventorsErin Lindsay, Arthur Gershowitz, Daniel Viitala
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An air removal device removes air from blood flowing in a perfusion system. A chamber is provided having a blood flow region at a lower end thereof and having an air collection region at an upper end thereof. The chamber further has an inlet, a blood outlet, and an air outlet vertically higher than the inlet. There is a vertical guide structure in the air collection region. A float is disposed for vertical movement following the vertical guide structure, wherein the float has an effective density less than the density of blood. A lever arm having a first end follows vertical movement of the float and has a second end pivotally mounted at a pivot point that is stationary with respect to the vertical guide structure. A valve is coupled to the air outlet and to an intermediate point of the lever arm for closing the air outlet when the float is at its vertically highest position.
An air removal device for removing air from blood flowing in a perfusion system, comprising:
A method of separating air from blood in a perfusion system coupled to a patient, said method comprising the steps of:
Dependencies are inferred from the claim text.