Design optimization of bidirectional arterial perfusion cannula.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_6C6290984774
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Design optimization of bidirectional arterial perfusion cannula.
Journal
Journal of cardiothoracic surgery
Author(s)
Abdel-Sayed S., Ferrari E., Abdel-Sayed P., Wilhelm M., von Segesser L.K., Berdajs D.
ISSN
1749-8090 (Electronic)
ISSN-L
1749-8090
Publication state
Published
Issued date
26/04/2021
Peer-reviewed
Oui
Volume
16
Number
1
Pages
114
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Determine if shortening the covered section of a self-expanding bidirectional arterial cannula, can enhance retrograde flow and thus reduce the risk of lower limb ischemia.
Outlet pressure vs flow rate was determined for three cannulas types: a 15F self-expanding bidirectional cannula having a covered section of 90 mm, the same cannula but with a shorter covered section of 60 mm, and a Biomedicus cannula as control. The performances of all the cannulas were compared using a computerized flow-bench with calibrated sensors and a centrifugal pump. Water retrograde flow was determined using a tank timer technique. Anterograde and retrograde flow rate versus outlet pressure were determined at six different pump speed.
For each of the six pump speed, both bidirectional cannulas, 60-mm covered and 90-mm covered respectively, showed higher performance than Biomedicus cannula control, as demonstrated by higher flow rate and lower pressure. We also observed that for the bidirectional cannula with shorter covered section, i.e. 60 mm coverage, provides enhanced performance as compared to a 90-mm coverage. Finally, the flow rate and the corresponding pressure can be consistently measured by our experimental set-up with low variability.
The new configuration of a shorter covered section in a bidirectional self-expanding cannula design, may present an opportunity to overcome lower leg ischemia during extra-corporal life support with long term peripheral cannulation.
Keywords
Arterial cannulation, Bidirectional cannula, ECLS, ECMO, Leg ischemia, Virtually wall-less cannula
Pubmed
Web of science
Open Access
Yes
Create date
28/04/2021 10:29
Last modification date
12/01/2022 8:10
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