Thermomechanical properties, collapse pressure, and expansion of shape memory polymer neurovascular stent prototypes
Open accessAbstract
Shape memory polymer stent prototypes were fabricated from thermoplastic polyurethane. Commercial stents are generally made of stainless steel or other alloys. These alloys are too stiff and prevent most stent designs from being able to navigate small and tortuous vessels to reach intracranial lesions. A solid tubular model and a high flexibility laser etched model are presented. The stents were tested for collapse in a pressure chamber. At 37°C, the full collapse pressure was comparable to that of commercially available stents, and higher than the estimated maximum pressure exerted by intracranial arteries. However, there is a potential for onset of collapse, which needs further study. The stents were crimped and expanded, the laser‐etched stent showed full recovery with an expansion ratio of 2.7 and a 1% axial shortening. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2009
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Tubular SMP devices were laser etched for more flexible stents that could navigate through small tortuous vessels; however, resistance to withstand the critical collapse pressure in the vessel at elevated body temperature may not be given in all cases.
“In addition, tubular SMP devices were laser etched for more flexible stents that also could navigate through small tortuous vesselshowever, it has been revealed that resistance to withstand the critical collapse pressure in the vessel at elevated body temperature may not be given in all cases [106].”
From Shape-memory polymers as a technology platform for biomedical applications (2010) · cites this paper as [106]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
The citation lists haven’t been fetched yet
References 50 · Cited by 67
- Authors
- Baer, G. M., Wilson, T. S., Small, W., Hartman, J., Benett, W. J., Matthews, D. L., & Maitland, D. J.
- Affiliations
- Lawrence Livermore National Laboratory (US)
- Kaiser Permanente (US)
- University of California Davis Medical Center (US)
- Corresponding author
- Maitland, Duncan J.
- Venue
- Journal of Biomedical Materials Research Part B: Applied Biomaterials
- Publisher
- Wiley
- Published
- 2008-12-23
- Volume
- 90B
- Issue
- 1
- Pages
- 421-429
- ISSN
- 1552-4973 (ISSN-L)
- 1552-4981
- PMC
- PMC3022342
- OpenAlex
- W2149352845
- Cited by
- 67
- References
- 50
- Citations by year
- 2026: 3 · 2025: 4 · 2024: 4 · 2023: 2 · 2022: 4 · 2021: 4 · 2020: 10 · 2019: 5 · 2018: 4 · 2017: 3 · 2016: 4 · 2015: 3 · 2014: 4 · 2013: 1 · 2012: 6
- FWCI
- 4.24
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Journal of Biomedical Materials Research Part B Applied Biomaterials (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of Biomedical Imaging and Bioengineering (R01EB000462)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Health Sciences › Medicine › Neurology › Intracranial Aneurysms: Treatment and Complications
- Keywords
- shape memory polymers, thermoplastic polyurethane, intracranial stenting, collapse pressure, stent expansion, laser etching, crimping, thermomechanical properties
- MeSH terms
- Models, Theoretical, Polymers, Pressure, Stents, Neovascularization, Physiologic
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
