Evidence map›Paper›PMID 40516392›Full record

ArticleJournal of the mechanical behavior of biomedical materials2025

Full-field strain measurements on medical devices using digital image correlation: Considerations and practical examples.

Taylor M Rothermel, Hadi Mirmohammad, Jason D Weaver, Daniel A Porter, MaiQuyen Nguyen, Zhijiang He, Andrew H Cannon, Jacob D Hochhalter, Kenneth I Aycock

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Article in Journal of the mechanical behavior of biomedical materials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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.

2 · The registry

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3 · Its place in the literature

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Taylor M RothermelDivision of Applied Mechanics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. FDA, Silver Spring, MD, USA. Electronic address: taylor.rothermel@bsci.com.
Hadi MirmohammadDivision of Applied Mechanics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. FDA, Silver Spring, MD, USA.
Jason D WeaverDivision of Applied Mechanics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. FDA, Silver Spring, MD, USA.
Daniel A PorterDivision of Applied Mechanics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. FDA, Silver Spring, MD, USA.
MaiQuyen NguyenOffice of Product Evaluation and Quality, Center for Devices and Radiological Health, U.S. FDA, Silver Spring, MD, USA.
Zhijiang HeOffice of Product Evaluation and Quality, Center for Devices and Radiological Health, U.S. FDA, Silver Spring, MD, USA.
Andrew H Cannon1900 Engineering, LLC, Clemson, SC, USA; Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC, USA.
Jacob D HochhalterDepartment of Mechanical Engineering, University of Utah, Salt Lake City, UT, USA.
Kenneth I AycockDivision of Applied Mechanics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. FDA, Silver Spring, MD, USA. Electronic address: kenneth.aycock@fda.hhs.gov.

Funding

Intramural FDA HHS FD999999
6 · The paper itself

Abstract

Access to direct stress or strain measurements on implantable medical devices could transform device design, durability assessment, and computational model development and validation activities. However, examples of acquiring such measurements are lacking. Here, we consider the use of optical digital image correlation (DIC) for characterizing full-field strains on medical devices and medical device surrogate specimens. Several common and unique speckle pattern application approaches are investigated including aerosol painting, application of transfer or decal papers, low- and high-pressure airbrushing using traditional and ultra-low reflectance paints, deposition of monodisperse graphite powder, and custom microstamping. Among the methods considered, comparative speckling studies show high-pressure airbrushing generates the best patterns at the millimeter-scale and monodisperse graphite powder or microstamping generate the best patterns at the sub-millimeter scale. Full-field DIC strain measurements additionally reveal Lüders-like phase transformation bands on nitinol wire, nitinol Z-specimens, and nitinol stent rings under bending loads. Overall, the study demonstrates the feasibility of direct strain measurement on real medical devices at fields of view ranging from millimeters to hundreds of microns and can be used to inform the planning and execution of future DIC studies on medical devices.

Indexed as

Equipment and SuppliesImage Processing, Computer-AssistedMaterials TestingStress, MechanicalDigital image correlationFull-field strain measurementMedical devicesNitinolSimulation validationSpeckle patterning

Identifiers

PMID40516392
PMCPMC12845515

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Registered trials

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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.