Mark W. McBride,David A. Boger,Robert L. Campbell,Gregory P. Dillon,Stephen A. Hambric,Robert F. Kunz,Boris Leschinsky,Thomas M. Mallison,James P. Runt,Justin M. Walsh
申请号：
US15633189
公开号：
US10149932B2
申请日:
2017.06.26
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An impeller includes a hub and a 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, and 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 which allows it to be inserted percutaneously into a patient. 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.
