2017
DOI: 10.1016/j.jmbbm.2017.02.006
|View full text |Cite
|
Sign up to set email alerts
|

Understanding the requirements of self-expandable stents for heart valve replacement: Radial force, hoop force and equilibrium

Abstract: A proper interpretation of the forces developed during stent crimping and deployment is of paramount importance for a better understanding of the requirements for successful heart valve replacement. The present study combines experimental and computational methods to assess the performance of a nitinol stent for tissue-engineered heart valve implantation. To validate the stent model, the mechanical response to parallel plate compression and radial crimping was evaluated experimentally. Finite element simulatio… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

2
22
0

Year Published

2017
2017
2024
2024

Publication Types

Select...
9

Relationship

1
8

Authors

Journals

citations
Cited by 53 publications
(24 citation statements)
references
References 33 publications
2
22
0
Order By: Relevance
“…32 One of the requirements for successful heart valve implantation is to recognize the forces which is developed during the stent crimping and deployment. 33 For intra-artery implantation, the diameter of the selfexpanding stent reduces during the implantation and then expands to its nominal diameter due to the shape memory effect of NiTi. A deformable cylinder applies load to crimp the stent.…”
Section: Resultsmentioning
confidence: 99%
“…32 One of the requirements for successful heart valve implantation is to recognize the forces which is developed during the stent crimping and deployment. 33 For intra-artery implantation, the diameter of the selfexpanding stent reduces during the implantation and then expands to its nominal diameter due to the shape memory effect of NiTi. A deformable cylinder applies load to crimp the stent.…”
Section: Resultsmentioning
confidence: 99%
“…Cabrera highlights the effect of stent's diameter on radial and hoop forces, noting significant decrease in radial forces for stents with diameters larger than 26 mm. 18 In other view, due to aorta tissue friability in acute traumatic aortic transection and small aorta size, most vascular surgeons leaning towered the conservative side in oversizing 15 to 20% oversizing and avoid the oversizing over 20% that may increase the migration of the stent graft. This is not a significant factor for the collapse as showed with us, as well other retrospective studies.…”
Section: Discussionmentioning
confidence: 99%
“…Moreover, other recent studies dealing with the vascular intervention computations also neglect the fluid structure interactions. For instance, in the study by Cabrera et al, stent deployment was simulated. In the work by Gökgöl et al, the quasi‐static analysis was also performed to model the percutaneous angioplasty.…”
Section: Methodsmentioning
confidence: 99%