Impeller and frame for a blood pump

Abstract

Apparatus and methods are described including a blood pump that includes an impeller configured to pump blood through a subject's body, and a frame disposed around the impeller. In a radially-non-constrained configuration of the frame, the frame defines a proximal conical portion and a cylindrical portion disposed distally to the proximal conical portion. The blood pump is configured such that such that, during at least some of the operation of the blood pump, at least a portion of the impeller is disposed within the proximal conical portion of the frame. Other applications are also described.

Dependencies are inferred from the claim text.