Blood pump with expandable cannula

A blood pump (10) includes an impeller having a plurality of foldable blades and a cannula (40) having a proximal portion with a fixed diameter, and a distal portion with an expandable diameter. The impeller can reside in the expandable portion of the cannula. The cannula has a collapsed condition f...

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Bibliographische Detailangaben
Hauptverfasser:	WALTERS, DANIEL A, CAMPBELL, ROBERT L, METREY, DANIEL, MALLISON, THOMAS M, MCBRIDE, MARK W, WALSH, JUSTIN M, KUNZ, ROBERT F, BOONE, EDWARD, MYER, ERIC, POWELL, KEVIN J
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:	A blood pump (10) includes an impeller having a plurality of foldable blades and a cannula (40) having a proximal portion with a fixed diameter, and a distal portion with an expandable diameter. The impeller can reside in the expandable portion of the cannula. The cannula has a collapsed condition for percutaneous delivery to a desired location within the body, and an expanded condition in which the impeller can rotate to pump blood. A flexible drive shaft can extend through the cannula for rotationally driving the impeller within the patient's body.