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Design of braided composite cardiovascular catheters based on required axial, flexural, and torsional rigidities
Author(s) -
Carey Jason,
Fahim Atef,
Munro Michael
Publication year - 2004
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.30017
Subject(s) - braid , flexural strength , composite number , flexibility (engineering) , catheter , materials science , fiber , structural engineering , composite material , biomedical engineering , surgery , mathematics , engineering , medicine , statistics
Cardiovascular catheterization is a common medical procedure. A single braided catheter with different rigidities at the proximal and distal ends can, if properly designed, provide the necessary control and flexibility and thus replace the current two‐piece (external catheter/internal guidewire) system. An analytical model based on classical laminate plate theory was developed in order to predict the elastic properties of angle‐plied, single‐overlap two‐dimensional fiber composite tubular braids, which are required for the determination of the axial, flexural, and torsional rigidities. In this work the analytical model has been used to design one‐piece cardiovascular catheters with axial, flexural, and torsional rigidities similar to those values for existing two‐piece catheters, thus validating the model as a tool for designing braided cardiovascular catheters. © 2004 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 70B: 73–81, 2004