Numerical design studies of meander structures for self-expanding absorbable stents
Abstract: Absorbable stents made of poly-L-lactic acid (PLLA) exhibit inferior mechanical properties compared with metal based devices. Therefore, design optimization by means of finite element analysis (FEA) plays an important role in development of high performance absorbable stents. In the present study, three different meander structures made of PLLA material were compared in terms of their radial resistive force (RRF) using FEA. Material tests were performed to obtain input parameters of PLLA for the simulation. FEA was carried out to simulate the RRF and the length change of the meander structures as a function of the diameter. In addition, the numerical results were compared to the experimental outcome using corresponding meander based stents performing radial testing with a segmented head mechanism. Comparable high stresses occurred in the Ubends of the examined stent designs. In designs with a large radius of curvature less stress was observed while crimping. One meander structure developed comparatively higher structural resistance against radially acting forces, due to its curved strut design. In general, FEA revealed consistent results compared to the experimental investigations.
- Standort
-
Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
-
Online-Ressource
- Sprache
-
Englisch
- Erschienen in
-
Numerical design studies of meander structures for self-expanding absorbable stents ; volume:7 ; number:2 ; year:2021 ; pages:735-738 ; extent:4
Current directions in biomedical engineering ; 7, Heft 2 (2021), 735-738 (gesamt 4)
- Urheber
-
Frank, Hagen
Dierke, Ariane
Brandt-Wunderlich, Christoph
Bohne, Eric
Kuske, Thomas
Stiehm, Michael
Schmitz, Klaus-Peter
Siewert, Stefan
- DOI
-
10.1515/cdbme-2021-2188
- URN
-
urn:nbn:de:101:1-2022101214190555580787
- Rechteinformation
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
-
15.08.2025, 07:36 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Frank, Hagen
- Dierke, Ariane
- Brandt-Wunderlich, Christoph
- Bohne, Eric
- Kuske, Thomas
- Stiehm, Michael
- Schmitz, Klaus-Peter
- Siewert, Stefan
Ähnliche Objekte (12)
A numerical study to investigate the impact of cell size of self-expanding aortic valve stents on paravalvular leakage
Perspektiven aus den Technikwissenschaften bzw. der Medizintechnik
Plädoyer für Forschungsverbünde in der Wissenschaft : Perspektiven aus den Technikwissenschaften und der Medizintechnik
Reconstruction of biological functions: novel implant concepts for cardiovascular, ophthal-mologic and otolaryngologic applications : Current research and development activities of the Twenty20 consortium RESPONSE
Development of a bioresorbable self-expanding microstent for interventional applications – an innovative approach for stent-assisted coiling
Transient Euler-Lagrange/DEM simulation of stent thrombosis
Design optimization of a self-expanding polymeric microstent for the treatment of Fallopian tube occlusions
Biomechanische Untersuchungen zu Gefäß-Stent-Wechselwirkungen
Numerical investigation of stent designs for wireless access to integrated sensors
In vitro biostability testing of stent cover materials
Transfer activities for cardiovascular, ophthalmologic and otolaryngologic medical device innovations
Medical device innovations for cardiovascular, ophthalmologic and otolaryngologic applications : Progress report from the Twenty20 consortium RESPONSE
A numerical study to investigate the impact of cell size of self-expanding aortic valve stents on paravalvular leakage
Perspektiven aus den Technikwissenschaften bzw. der Medizintechnik
Plädoyer für Forschungsverbünde in der Wissenschaft : Perspektiven aus den Technikwissenschaften und der Medizintechnik
Reconstruction of biological functions: novel implant concepts for cardiovascular, ophthal-mologic and otolaryngologic applications : Current research and development activities of the Twenty20 consortium RESPONSE
Development of a bioresorbable self-expanding microstent for interventional applications – an innovative approach for stent-assisted coiling
Transient Euler-Lagrange/DEM simulation of stent thrombosis
Design optimization of a self-expanding polymeric microstent for the treatment of Fallopian tube occlusions
Biomechanische Untersuchungen zu Gefäß-Stent-Wechselwirkungen
Numerical investigation of stent designs for wireless access to integrated sensors
In vitro biostability testing of stent cover materials
Transfer activities for cardiovascular, ophthalmologic and otolaryngologic medical device innovations
Medical device innovations for cardiovascular, ophthalmologic and otolaryngologic applications : Progress report from the Twenty20 consortium RESPONSE
A numerical study to investigate the impact of cell size of self-expanding aortic valve stents on paravalvular leakage
Perspektiven aus den Technikwissenschaften bzw. der Medizintechnik
Plädoyer für Forschungsverbünde in der Wissenschaft : Perspektiven aus den Technikwissenschaften und der Medizintechnik
Reconstruction of biological functions: novel implant concepts for cardiovascular, ophthal-mologic and otolaryngologic applications : Current research and development activities of the Twenty20 consortium RESPONSE
Development of a bioresorbable self-expanding microstent for interventional applications – an innovative approach for stent-assisted coiling
Transient Euler-Lagrange/DEM simulation of stent thrombosis
Design optimization of a self-expanding polymeric microstent for the treatment of Fallopian tube occlusions
Biomechanische Untersuchungen zu Gefäß-Stent-Wechselwirkungen
Numerical investigation of stent designs for wireless access to integrated sensors
In vitro biostability testing of stent cover materials
Transfer activities for cardiovascular, ophthalmologic and otolaryngologic medical device innovations