<b>Biocompatibility Studies of the Anaconda Stent-Graft and Observations of Nitinol Corrosion Resistance</b>

Guidoin, Robert; Douville, Yvan; Basle, Michel‐Félix; King, Martin W.; Маринов, Г.; Traoré, Amidou; Zhang, Ze; Guillemot, Fabien; Dionne, Guy; Sumanasinghe, Ruwan D.; Legrand, A. P.; Guidoin, Marie-France; Durrieu, Marie‐Christine; Baquey, C.

doi:10.1583/03-1143.1

Cited by 15 publications

(13 citation statements)

References 26 publications

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“…These are different values from those measured in canine animal trial reported by Guidoin et al [6]. They measured the fabric count of Anaconda sample after 1 month and 3 months' implantation, the warp count increased after the implantation, whereas the weft count decreased significantly after 1 month implantation, then it increased slightly but still below the value of the control sample.…”

Section: Resultscontrasting

confidence: 73%

“…Considering that leakage of the endovascular devices is a severe problem, water permeability should be the most important fatigue performance to be considered in this study. However, the authors think that changes in fabric count, porosity, as well as diameter are also very important because these parameters are always considered by researchers from medical field [6]. So the changes in water permeability, fabric radial and longitudinal count, bursting strength, porosity and tubular diameter during the experiments were selected to characterize the fatigue performance of the prototype samples.…”

Section: Characterization Of Fatigue Performancementioning

confidence: 99%

“…However, there are few reports about the relationship between textile parameters and the fatigue performance of endovascular prostheses. Guidoin et al [5,6] and Chakfe et al [7] studied the factors influencing the fatigue performance (Such as warp yarn shifting, suture breakage, fabric perforation and monofilament rupture) of retrieved endovascular prostheses. The saturation index (also known as the cover factor) of the textile fabric was found to be the most important factor that explains the premature failures of retrieved endovascular prostheses.…”

Section: Introductionmentioning

confidence: 99%

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In vitro fatigue properties of prototype textile components of endovascular devices

Zhao

Wang

et al. 2009

Fibers Polym

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The fatigue resistance of twelve tubular textile samples designed for use in prototype endovascular devices was tested by an accelerated fatigue tester. Three time points were selected, namely 0, 26×10 6 , and 100×10 6 cycles, which are equivalent to 0, 10 months, and 38.5 months implanted in the human body. Changes in tubular diameter, woven fabric count, thickness, mass per unit area, porosity, water permeability, and bursting strength were selected to characterize the performance of these samples before and after fatigue testing. The results showed that all the samples experienced some fatigue during the study, and the evidence of fatigue became more apparent with increasing time. There were clearly observable relationships between the textile parameters and the fatigue performance of the prototype samples. Woven construction, yarn size and yarn type all interacted with each other to influence the fatigue performance. Samples with twill weaves fatigued more readily than those with a 1/1 plain weave. For all three woven constructions, samples with larger yarn size fatigued more easily. However, the fatigue performance of some samples with multifilament weft yarns is severe.

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Section: Resultscontrasting

confidence: 73%

Section: Characterization Of Fatigue Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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In vitro fatigue properties of prototype textile components of endovascular devices

Zhao

Wang

et al. 2009

Fibers Polym

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“…The Anaconda uses a particularly thin Dacron (0.15 vs.~0.35 mm), and the porosity of all existing grafts are approximately the same, at 65%, 59 with the incidence of Type IV endoleak being fairly high peri-operatively (this is known as 'contrast blushing').…”

Section: Type IVmentioning

confidence: 99%

“…In animal models, endothelialization of the stent graft seems to occur quickly (within 3 months) and along the whole length of the graft. 59,122 Although there are occasional reports of this occurring in humans, 106 it is thought that endothelialization does not commonly take place. 87 Therefore, further work on developing methods to encourage endothelialization should be performed, so that the stent graft becomes integrated with the body.…”

Section: Limb Occlusionmentioning

confidence: 99%

AAA Stent–Grafts: Past Problems and Future Prospects

et al. 2010

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Endovascular aneurysm repair (EVAR) has quickly gained popularity for infrarenal abdominal aortic aneurysm repair during the last two decades. The improvement of available EVAR devices is critical for the advancement of patient care in vascular surgery. Problems are still associated with the grafts, many of which can necessitate the conversion of the patient to open repair, or even result in rupture of the aneurysm. This review attempts to address these problems, by highlighting why they occur and what the failings of the currently available stent grafts are, respectively. In addition, the review gives critical appraisal as to the novel methods required for dealing with these problems and identifies the new generation of stent grafts that are being or need to be designed and constructed in order to overcome the issues that are associated with the existing first- and second-generation devices.

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The Technological Advancement to Engineer Next‐Generation Stent‐Grafts: Design, Material, and Fabrication Techniques

Vahabli

Mann

Heidari

et al. 2022

Adv Healthcare Materials

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Endovascular treatment of aortic disorders has gained wide acceptance due to reduced physiological burden to the patient compared to open surgery, and ongoing stent-graft evolution has made aortic repair an option for patients with more complex anatomies. To date, commercial stent-grafts are typically developed from established production techniques with simple design structures and limited material ranges. Despite the numerous updated versions of stent-grafts by manufacturers, the reoccurrence of device-related complications raises questions about whether the current manfacturing methods are technically able to eliminate these problems. The technology trend to produce efficient medical devices, including stent-grafts and all similar implants, should eventually change direction to advanced manufacturing techniques. It is expected that through recent advancements, especially the emergence of 4D-printing and smart materials, unprecedented features can be defined for cardiovascular medical implants, like shape change and remote battery-free self-monitoring. 4D-printing technology promises adaptive functionality, a highly desirable feature enabling printed cardiovascular implants to physically transform with time to perform a programmed task. This review provides a thorough assessment of the established technologies for existing stent-grafts and provides technical commentaries on known failure modes. They then discuss the future of advanced technologies and the efforts needed to produce next-generation endovascular implants.

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Biocompatibility Studies of the Anaconda Stent-Graft and Observations of Nitinol Corrosion Resistance

Cited by 15 publications

References 26 publications

In vitro fatigue properties of prototype textile components of endovascular devices

In vitro fatigue properties of prototype textile components of endovascular devices

AAA Stent–Grafts: Past Problems and Future Prospects

The Technological Advancement to Engineer Next‐Generation Stent‐Grafts: Design, Material, and Fabrication Techniques

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