Initial in vitro evaluation of a pediatric vortex-mixing membrane lung

Details

Serval ID
serval:BIB_80C1C2AF0687
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Initial in vitro evaluation of a pediatric vortex-mixing membrane lung
Journal
Artificial Organs
Author(s)
Peacock  J. A., Bellhouse  B. J., Abel  K., Bellhouse  E. L., Bellhouse  F. H., Jeffree  M. A., Sykes  M. K., Gardaz  J. P.
ISSN
0160-564X (Print)
Publication state
Published
Issued date
05/1983
Volume
7
Number
2
Pages
227-31
Notes
In Vitro
Journal Article --- Old month value: May
Abstract
A new design for a pediatric membrane lung is described in this paper. The lung consists of eight blood compartments, each having six U-shaped blood channels, with microporous PTFE membranes supported on rigid plates in such a way that the membranes form furrowed blood channels. Two rolling diaphragm pumps are attached to the open ends of the U-shaped blood channels; these pumps are operated in antiphase. Mean flow is provided by a roller pump placed at the inlet end of the membrane lung. Pulsatile blood flow within the blood channels produces successive vortex formation and ejection, leading to good blood mixing and high efficiency in gas transport. The design of the rolling diaphragm piston pumps ensures that the blood prime volume is low (280 ml), and the grouping of the pumps at one end of the oxygenator allows the driving mechanism to be simple and compact. The relatively wide blood channels (minimum width 0.5 mm) and vortex mixing make priming the membrane lung particularly easy. The membrane area is 0.39 m2. Preliminary performance testing of the pediatric membrane lung was undertaken by pumping blood around a circuit containing a roller pump, the membrane lung, and a bubble oxygenator (to adjust the blood gases at the inlet to the membrane lung). In five such experiments it was shown that the membrane lung transferred 80 ml O2/min and 120 ml CO2/min at a blood flow rate of 1.5 L/min.
Keywords
Adult Biological Transport Blood Flow Velocity Blood Gas Analysis Blood Pressure Child Child, Preschool Humans Infant Infant, Newborn *Oxygenators, Membrane *Pulmonary Gas Exchange Respiratory Distress Syndrome, Newborn/therapy
Pubmed
Web of science
Create date
28/01/2008 10:48
Last modification date
20/08/2019 14:41
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