| 摘要 |
This device removes venous blood from the vena cava or heart to a point outside the patient, applies pulsatile pressure outside the patient, plus oxygenation and filtration if needed, and returns the pulsated blood to the aorta to give increased pressure and duration during diastole. In a surgical mode the heart is completely bypassed with blood collected and reintroduced near the clamped heart. In a percutaneous mode, entry is made by cannulae in the femoral artery and vein with the venal cannula extended to the right atrium or preferably the left atrium and the arterial cannula extended into the aorta. |
