THE PENN STATE RESEARCH FOUNDATION;DATASCOPE INVESTMENT CORP.
发明人:
MCBRIDE, MARK W.,BOGER, DAVID A.,CAMPBELL, ROBERT L.,DILLON, GREGORY P.,HAMBRIC, STEPHEN A.,KUNZ, ROBERT F.,LESCHINSKY, BORIS,MALLISON, THOMAS M.,RUNT, JAMES P.,WALSH, JUSTIN M.
申请号：
CA2646277
公开号：
CA2646277C
申请日:
2007.03.23
申请国别(地区):
CA
年份:
2016
代理人:
摘要：
An impeller includes a hub and at least one blade supported by the hub. The impeller has a stored configuration in which the blade is compressed so that its distal end moves towards the hub, and a deployed configuration in which the blade extends away from the hub. The impeller may be part of a pump for pumping fluids, such as blood within patients. A blood pump may include a cannula having a proximal portion with a fixed diameter, and a distal portion with an expandable diameter. The impeller may reside in the expandable portion of the cannula. The cannula may have a compressed diameter allowing percutaneous insertion into patients. Once at a desired location, the expandable portion of the cannula may be expanded and the impeller expanded to the deployed configuration. A flexible drive shaft may extend through the cannula for rotationally driving the impeller within the patient.
