Design, Characterization, and 3D Printing of Cardiovascular Stents with Zero Poisson’s Ratio in Longitudinal Deformation

Wang, Chengjin; Zhang, Lei; Fang, Yajun; Sun, Wei

doi:10.1016/j.eng.2020.02.013

Cited by 47 publications

(26 citation statements)

References 28 publications

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“…The use of bioresorbable stents is considered a revolution in interventional cardiology [ 82 ]. Such devices are fabricated from materials that provide transient support and progressively degrade, being dissolved or absorbed in the body after the remodeling process [ 13 , 30 , 31 , 79 , 83 ]. It is in this regard that biocompatible, biodegradable polymers and metallic materials have attracted increased attention [ 32 , 84 ] ( Table 2 ).…”

Section: Evolution Of Cardiovascular Stentsmentioning

confidence: 99%

“…Generally, stents are needed temporarily (until healing and re-endothelialization are obtained) for their short-term benefits, while in the long term they tend to create severe complications associated with leftover metal. To diminish adverse effects, like chronic inflammation, restenosis, late-stage thrombosis, and vessel size mismatch, a new generation of devices (described in the literature as bioresorbable stents, biodegradable stents, or bioresorbable vascular scaffolds) is currently being developed [25,30,32,75,[78][79][80][81].…”

Section: Bioresorbable Stentsmentioning

confidence: 99%

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Cardiovascular Stents: A Review of Past, Current, and Emerging Devices

et al. 2021

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One of the leading causes of morbidity and mortality worldwide is coronary artery disease, a condition characterized by the narrowing of the artery due to plaque deposits. The standard of care for treating this disease is the introduction of a stent at the lesion site. This life-saving tubular device ensures vessel support, keeping the blood-flow path open so that the cardiac muscle receives its vital nutrients and oxygen supply. Several generations of stents have been iteratively developed towards improving patient outcomes and diminishing adverse side effects following the implanting procedure. Moving from bare-metal stents to drug-eluting stents, and recently reaching bioresorbable stents, this research field is under continuous development. To keep up with how stent technology has advanced in the past few decades, this paper reviews the evolution of these devices, focusing on how they can be further optimized towards creating an ideal vascular scaffold.

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Section: Evolution Of Cardiovascular Stentsmentioning

confidence: 99%

Section: Bioresorbable Stentsmentioning

confidence: 99%

Cardiovascular Stents: A Review of Past, Current, and Emerging Devices

et al. 2021

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“… Vascular stent processing method: ( a ) Braided [ 77 ]; ( b ) Laser cutting [ 80 ]; ( c ) Electrospinning technology [ 86 ]; ( d ) Additive manufacturing [ 91 ]. …”

Section: Figurementioning

confidence: 99%

“…As the precise medical device, the manufacturing methods of vascular stents mainly include braided method ( Figure 7 a) [ 75 , 76 , 77 , 78 ], laser cutting method ( Figure 7 b) [ 79 , 80 , 81 , 82 ], electrospinning technology ( Figure 7 c) [ 83 , 84 , 85 , 86 ] and additive manufacturing technology ( Figure 7 d) [ 87 , 88 , 89 , 90 , 91 ]. The braided method is to first wind the wire on the carrier.…”

Section: Introduction To the Vascular Stentsmentioning

confidence: 99%

Structural Design of Vascular Stents: A Review

Pan

Han

2021

Micromachines

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Percutaneous Coronary Intervention (PCI) is currently the most conventional and effective method for clinically treating cardiovascular diseases such as atherosclerosis. Stent implantation, as one of the ways of PCI in the treatment of coronary artery diseases, has become a hot spot in scientific research with more and more patients suffering from cardiovascular diseases. However, vascular stent implanted into vessels of patients often causes complications such as In-Stent Restenosis (ISR). The vascular stent is one of the sophisticated medical devices, a reasonable structure of stent can effectively reduce the complications. In this paper, we introduce the evolution, performance evaluation standards, delivery and deployment, and manufacturing methods of vascular stents. Based on a large number of literature pieces, this paper focuses on designing structures of vascular stents in terms of “bridge (or link)” type, representative volume unit (RVE)/representative unit cell (RUC), and patient-specific stent. Finally, this paper gives an outlook on the future development of designing vascular stents.

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“…Furthermore, they developed a dimensional prediction model to improve dimensional precision [ 174 ]. Wang et al developed a new screw extrusion-based 3D printing system for stent fabrication, especially by designing a zero-Poisson’s ratio structure [ 175 ].…”

Section: Stent Manufacture Techniquesmentioning

confidence: 99%

The Development of Design and Manufacture Techniques for Bioresorbable Coronary Artery Stents

Wang

Pang

et al. 2021

Micromachines

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Coronary artery disease (CAD) is the leading killer of humans worldwide. Bioresorbable polymeric stents have attracted a great deal of interest because they can treat CAD without producing long-term complications. Bioresorbable polymeric stents (BMSs) have undergone a sustainable revolution in terms of material processing, mechanical performance, biodegradability and manufacture techniques. Biodegradable polymers and copolymers have been widely studied as potential material candidates for bioresorbable stents. It is a great challenge to find a reasonable balance between the mechanical properties and degradation behavior of bioresorbable polymeric stents. Surface modification and drug-coating methods are generally used to improve biocompatibility and drug loading performance, which are decisive factors for the safety and efficacy of bioresorbable stents. Traditional stent manufacture techniques include etching, micro-electro discharge machining, electroforming, die-casting and laser cutting. The rapid development of 3D printing has brought continuous innovation and the wide application of biodegradable materials, which provides a novel technique for the additive manufacture of bioresorbable stents. This review aims to describe the problems regarding and the achievements of biodegradable stents from their birth to the present and discuss potential difficulties and challenges in the future.

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Design, Characterization, and 3D Printing of Cardiovascular Stents with Zero Poisson’s Ratio in Longitudinal Deformation

Cited by 47 publications

References 28 publications

Cardiovascular Stents: A Review of Past, Current, and Emerging Devices

Cardiovascular Stents: A Review of Past, Current, and Emerging Devices

Structural Design of Vascular Stents: A Review

The Development of Design and Manufacture Techniques for Bioresorbable Coronary Artery Stents

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