Med-Tech Innovation Materials
Evaluating the Changing
CHARACTERISTICS OF POLYMERS
To avoid failures and to make safe and effective medical devices, it is important to fully understand materials control and to incorporate it into medical device design, says Dr Xiang Zhang of Ceram.
consequently cause failures. Having a comprehensive understanding of how a material and hence its properties can change during manufacturing, post-
A 30 ¦ November/December 2011
ll medical devices, from a syringe to a stent, to a wheelchair and a wound dressing are made up of materials that can change during all stages of the product lifecycle and
product treatment, storage, transportation and in use allows medical device designers to create innovative devices whilst avoiding failures. Using polymers as an example, this article examines the various changes that can take place during the product lifecycle and also offers guidelines for materials control, in terms of routine materials evaluation and characterisation.
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