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Design of non-equal-strut stent hoops for structural optimization of thoracic aortic stent-grafts.

Endovascular aortic aneurysm repair (EVAR) with stent-grafts is used widely for the treatment of thoracic aortic aneurysms (TAA). Inappropriate design of stent-grafts may lead to complications such as endoleak, stent-graft migration and new entries, causes of which may be inappropriate radial suppor...

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Published in:Minimally Invasive Therapy & Allied Technologies Vol. 31; no. 1; pp. 58 - 72
Main Authors: Yan, Shiju, Song, Chengli, Si, Yi, Zhao, Yiwen
Format: pictorial research tables/charts Journal Article
Published: Taylor & Francis Ltd Jan 2022
Online Access:View this record in EBSCOhost
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      jtl: Minimally Invasive Therapy & Allied Technologies
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      dt: Jan 2022
      vid: 31
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      pub: Taylor & Francis Ltd
      place: Philadelphia, Pennsylvania
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        10.1080/13645706.2020.1745849
        155084096
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        atl: Design of non-equal-strut stent hoops for structural optimization of thoracic aortic stent-grafts.
      aug:
        au:
          Yan, Shiju
          Song, Chengli
          Si, Yi
          Zhao, Yiwen
        affil: School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
      sug:
        subj:
          Prosthesis Design
          Stents
          Blood Vessel Prosthesis
          Aortic Aneurysm, Thoracic Surgery
          Human
          Treatment Outcomes
          Endovascular Procedures
          Blood Vessel Prosthesis Equipment and Supplies
      ab: Endovascular aortic aneurysm repair (EVAR) with stent-grafts is used widely for the treatment of thoracic aortic aneurysms (TAA). Inappropriate design of stent-grafts may lead to complications such as endoleak, stent-graft migration and new entries, causes of which may be inappropriate radial support force or insufficient longitudinal flexibility of the stent-grafts. To improve the mechanical performance of the stent-grafts, a type of non-equal-strut stent hoops was proposed, and the influence of structural parameters on the mechanical performance was studied. Results of numerical simulation and physical experiments show that by using the proposed non-equal-strut stent hoops, radial support force and longitudinal flexibility of stent-grafts can be reconciled and balanced. Results of this study could be used to facilitate radial force control and longitudinal flexibility enhancement in the design of aortic stent-grafts.
      pubtype: Academic Journal
      doctype:
        pictorial
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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