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Medical Packaging
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The Challenge
The medical device industry is moving toward pre-packaged disposable devices
such as surgical instruments and syringes. The tensile strength of the
adhesives used for such packaging must be assessed according to ASTM standard F
88 to ensure sterilization of instruments during shipment and during storage at
the customer site.
Our Solution
Instron®'s Peel/ Tear/ Friction (PTF) software module contains
pre-configured methods for conducting three different peel tests: T-peel,
90-degree peel and 180-degree peel. Using a high data acquisition rate to
ensure the peel profile is accurately characterized, the strength of the
adhesive bond can be evaluated using the basic calculation of maximum force on
an absolute peak, or using more advanced calculations such as the average of a
specific number of peaks, troughs or combination of both. Users have great
flexibility in specifying where measurement begins and ends, enabling the
software to calculate a broad range of results.
Typical set-ups use Instron's universal testing systems configured with
pneumatically activated side-action grips, which together provide the precise
control and accurate alignment required.
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A 3342 universal testing system with pneumatic side action grips
and line contact faces was used to grip disposable syringe packaging in a
T-peel test. Such tests allow quality personnel to investigate the seal
strength of their packaging methods and to ensure the sterility of the devices
after delivery.
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