| 摘要 |
Apparatus for pumping blood comprises a catheter to be located within the aorta (22) and having an end portion (26) to be located in spaced relation from the aortic valve (28). A rotary pump member (24) is disposed within a tubular portion (38) of the end portion (26) and is operated by a rotary drive wire (32A) extending within the catheter. A flexible skirt (52) extends about the tubular portion (38) to contact the walls of the aorta (22) and ensures that substantially all the blood within the aorta flows through the pump (24) and also that the end portion (26) is maintained in a spaced apart relation from the aortic valve (28). |
