Fluid flow is directed to {TAIL ~ the second chamber} during cardiac diastole and away from the second chamber during cardiac systole, causing {HEAD ~ the device} to function in a counterpulsation mode 
Fluid flow is directed to { TAIL ~ the second chamber } during cardiac diastole and away from the second chamber during cardiac systole , causing { HEAD ~ the device } to function in a counterpulsation mode
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH