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A 64 ml (effective stroke volume) in vitro electrohydraulic ventricular assist device (VAD) prototype has been built. The energy converter is an axial flow pump driven by a brushless direct current (DC) motor. Systole begins as silicone oil is pumped from the volume displacement chamber (VDC) into the ventricle, displacing the flexing diaphragm separating the oil and the blood. In diastole, the motor reverses, providing active filling by pumping oil from the ventricle into the VDC. The surface mount electronic internal controller provides motor commutator, energy management, telemetry, and physiologic control functions. Energy is supplied externally by either a 12 V DC power supply or a 12 V DC rechargeable battery and is transmitted through the skin by a transcutaneous energy transformer (TET). Energy can also be supplied by a 12 V DC rechargeable internal battery. Bidirectional infrared telemetry is used to transmit information between the internal and external controllers.
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
July 1994,
Artificial organs,
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
January 2003,
ASAIO journal (American Society for Artificial Internal Organs : 1992),
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
November 1997,
Artificial organs,
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
January 1996,
ASAIO journal (American Society for Artificial Internal Organs : 1992),
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
January 2004,
ASAIO journal (American Society for Artificial Internal Organs : 1992),
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
January 1983,
Life support systems : the journal of the European Society for Artificial Organs,
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
September 2011,
Nihon rinsho. Japanese journal of clinical medicine,
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
January 2017,
Kyobu geka. The Japanese journal of thoracic surgery,
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
July 2009,
Kyobu geka. The Japanese journal of thoracic surgery,
P D Diegel, and
T Mussivand, and
J W Holfert, and
D Nahon, and
J Miller, and
G K Maclean, and
J P Santerre, and
G B Bearnson, and
J Juretich, and
A C Hansen
January 2005,
ASAIO journal (American Society for Artificial Internal Organs : 1992),
