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OwnerMarlin S. Heilman, Christopher D. Capone +11inventors
InventorsMarlin S. Heilman, Christopher D. Capone, Steve A. Kolenik, Daniel R. Moore, Carl M. Parisi, Edward K. Prem, Richard A. Sofranko, James Antaki, Brad Paden, David Borzelleca, Greg Burgreen, John A. Holmes, Zhongjun Wu
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A method and apparatus as described herein for substantially, but not entirely, blocking back-flow through a blood pump when the blood pump is not pumping blood wherein the method and apparatus can operate passively or actively if the blood pump stops pumping in order to provide a limited back-flow through the blood pump to prevent clot formation.
A blood pump comprising an inlet, an outlet, a rotor cooperating with a stator for pumping blood through at least one blood flow path from said inlet to said outlet, said rotor movable axially with respect to said stator between a pumping position and a non-pumping position, a portion of said rotor configured to substantially but not entirely restrict a reverse flow of blood from said outlet to said inlet when said rotor is moved to said non-pumping position such that a limited reverse blood flow is permitted.
A blood pump comprising an inlet, an outlet, a rotor cooperating with a stator for pumping blood through at least one blood flow path from said inlet to said outlet, and a backflow check valve substantially but not entirely restricting a reverse flow of blood from said outlet to said inlet such that a limited reverse flow is permitted responsive to a predetermined reduction in rotation speed of said rotor.
Dependencies are inferred from the claim text.