Development of thin-walled fibre-reinforced structures for medical applications

Austin B. Coffey, A. Brazier, Morgan Tierney, Alan G. Gately, C. M. O'Bradaigh

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

There is a need in biomedical engineering for thin-walled, high-performance structures, which could be used as catheters, or as replacement implants in the body. This paper investigates the basic issues associated with filament winding of thin-walled structures, in which an ultra-thin layer (<0.05 mm) reinforcing material is wound onto a polymer tube. Current techniques such as over-braiding of stainless steel and carbon fibre have difficulties producing a wall thickness below about 0.1 mm with high volume fractions. This process will involve filament winding of thin layers of aramid with polymer matrices. These layers are wound onto a continuously moving extruded inner polymer core and the wound structure will be over-coated using over-extrusion and dipping techniques. The adhesion between the fibre and matrix will be investigated. The objective is to produce high-performance thin-walled polymer structures whose properties are designed, or tailored to the particular application.

Original languageEnglish
Pages (from-to)535-542
Number of pages8
JournalComposites Part A: Applied Science and Manufacturing
Volume34
Issue number6 SPEC.
DOIs
Publication statusPublished - Jun 2003
Externally publishedYes

Keywords

  • A. Aramid fibre
  • A. Tape
  • B. Adhesion

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