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US 12,708,760 B2Granted
Percutaneous heart pump distal seal
AssigneeTc1 LLC
InventorMichael L. Green
Life of this patent
Estimating the term…
Abstract
The present application describes various features for a catheter pump that prevents or inhibits unwanted fluids from entering a cavity or opening of a catheter pump. If unwanted fluids enter a cavity or opening of the catheter pump, the examples described herein cause the unwanted fluid to be expelled from the catheter pump.
Claims22
A catheter pump system, comprising:
- an impeller defining an open inner volume;
- and
- one or more channels extending from an outer surface of the impeller to the inner volume, wherein movement of the impeller expels a radial flow of fluid through the one or more channels from the open inner volume.
A catheter pump system, comprising:
- an impeller defining an inner volume and a plurality of features, wherein each of the plurality of features defines a channel between the inner volume and a surface of the impeller;
- and
- an impeller shaft coupled to the impeller, the impeller shaft comprising one or more fluid directing passages, wherein each of the one or more fluid directing passages and each of the plurality of features act to expel a fluid from the inner volume of the impeller in response to movement of the impeller.
A method, comprising:
- causing a movement an impeller of a catheter pump system;
- and
- in response to the movement of the impeller, expelling a fluid from an open inner volume defined by the impeller, wherein the fluid is expelled from the open inner volume via a plurality of channels, each of the plurality of channels defining a channel path that extends from the open inner volume to an outer surface of the impeller.
Dependencies are inferred from the claim text.