PMID- 23367196
OWN - NLM
STAT- MEDLINE
DCOM- 20130724
LR  - 20200928
IS  - 2694-0604 (Electronic)
IS  - 2375-7477 (Linking)
VI  - 2012
DP  - 2012
TI  - Feasibility of using piezohydraulic pumps as motors for pediatric ventricular 
      assist devices.
PG  - 5590-4
LID - 10.1109/EMBC.2012.6347261 [doi]
AB  - The feasibility of using piezohydraulic pumps in drivers for pediatric 
      ventricular assist devices is presented in this article. In this study a 0.5 kg 
      piezohydraulic pump is incorporated into a ventricular assist device driver to 
      drive a pulsatile pediatric 30 mL stroke ventricular assist device (VAD). The 
      driver consists of a piezoelectric-hydraulic hybrid actuator and volume 
      amplification section. Mechanical tests were performed on the pump and the hybrid 
      actuator and a maximum power output of 5.4 W and 1.6 W were recorded 
      respectively. The driver was tested running at multiple heart rates from 50-80 
      beats per minute (BPM) in an in-vitro bench top mock circulation to characterize 
      the performance of the driver under a circulatory load. The maximum drive 
      pressure output by the driver was 35 kPa. Peak flow rate from the VAD driven by 
      the new driver was 6 L/min against a 10 kPa back pressure. Mean flow rate from 
      the VAD outlet was 2.35 L/min for 80 BPM operation.
FAU - Valdovinos, John
AU  - Valdovinos J
AD  - Biomedical Engineering Interdepartmental Program, University of California Los 
      Angeles, Los Angeles, CA 90095, USA. johnvald@ucla.edu
FAU - Levi, Daniel S
AU  - Levi DS
FAU - Williams, Ryan
AU  - Williams R
FAU - Carman, Gregory P
AU  - Carman GP
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - Annu Int Conf IEEE Eng Med Biol Soc
JT  - Annual International Conference of the IEEE Engineering in Medicine and Biology 
      Society. IEEE Engineering in Medicine and Biology Society. Annual International 
      Conference
JID - 101763872
SB  - IM
MH  - Child
MH  - Equipment Design
MH  - Feasibility Studies
MH  - *Heart-Assist Devices
MH  - Humans
EDAT- 2013/02/01 06:00
MHDA- 2013/07/25 06:00
CRDT- 2013/02/01 06:00
PHST- 2013/02/01 06:00 [entrez]
PHST- 2013/02/01 06:00 [pubmed]
PHST- 2013/07/25 06:00 [medline]
AID - 10.1109/EMBC.2012.6347261 [doi]
PST - ppublish
SO  - Annu Int Conf IEEE Eng Med Biol Soc. 2012;2012:5590-4. doi: 
      10.1109/EMBC.2012.6347261.