ArticleSmart materials & structures2017
Two-year performance study of porous, thermoset, shape memory polyurethanes intended for vascular medical devices.
Article in Smart materials & structures, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed, 32 citations in OpenAlex.
- Thermally Drawn Shape and Stiffness Programmable Fibers for Medical Devices.Advanced healthcare materials · 2025Article
- Sterilization effects on poly(glycerol dodecanedioate): A biodegradable shape memory elastomer for biomedical applications.Journal of biomedical materials research. Part B, Applied biomaterials · 2023Article
- Image-Based Evaluation of In Vivo Degradation for Shape-Memory Polymer Polyurethane Foam.Polymers · 2022Article
- Temperature dependence of nickel ion release from nitinol medical devices.Journal of biomedical materials research. Part B, Applied biomaterials · 2021Article
- Shape Memory Polymer Foams Synthesized Using Glycerol and Hexanetriol for Enhanced Degradation Resistance.Polymers · 2020Article
- Bio-based, biodegradable and amorphous polyurethanes with shape memory behavior at body temperature.RSC advances · 2019Article
- Shape memory polyurethane-urea foams with improved toughness.Journal of applied polymer science · 2019Article
- Highly Cross-Linked Shape Memory Polymers with Tunable Oxidative and Hydrolytic Degradation Rates and Selected Products Based on Succinic Acid.ACS applied bio materials · 2019Article
- Shape memory polymers with enhanced visibility for magnetic resonance- and X-ray imaging modalities.Acta biomaterialia · 2017Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The long-term shape-recovery behavior of shape memory polymers has often been shown to be dependent on the length of time the material has been stored in the secondary shape. Typically, recovery performance and shape fixity will decrease with increased time in the secondary shape. In medical materials, a shelf-life is crucial to establish as it sets the upper threshold for device performance in a clinical setting, and a reduction in shape recovery would limit the development of SMP medical devices. Here, we present a two-year study of strain recovery, strain fixity, and shape recovery kinetics for passively and actively actuated SMPs intended for vascular devices. While kinetic experiments using immersion DMA indicate slight material relaxation and a decrease in the time to recovery, these changes are not found for bulk recovery experiments. The results indicate that a two-year shelf-life for these SMPs is very reasonable, as there is no change in the recovery kinetics, strain recovery, or strain fixity associated with this aging time. Further, a thermal accelerated aging test is presented for more rapid testing of the shape memory behavior of these SMPs and is compared with the real time aging results, indicating that this test is a reasonable indicator of the two-year behavior.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.