Plastic needle hubs strengthened with corona

A Dyne Technology product story
Edited by the Engineeringtalk editorial team Apr 11, 2006

Corona treatment unit to treat plastic needle hubs for hypodermic syringes is for bonding and leakage problems experienced by medical device manufacturers.

Dyne Technology has launched a corona treatment unit to treat plastic needle hubs for hypodermic syringes.

The Needletec, made by Tantec, is for bonding and leakage problems experienced by medical device manufacturers.

Corona treating a needle hub increases its surface wettability and improves its adhesion properties offering a stronger bond between the plastic needle hub and the hypodermic needle.

Corona treating needle hubs increases the tensile strength of the assembled hubs and needles.

Typically, untreated hubs have tensile strengths between 18 and 25N, whereas after corona treatment with a Needletec machine this goes up to 75N.

The integrated corona treatment system can cope with the speeds of high performance needle assembly lines.

It can treat difficult to access hub recesses makes this an easy to use system and a safe treatment method for needle hubs.

The station's integrated electrode system can handle most existing plastic or stainless-steel jigs and fixtures used on assembly lines.

To control the process, a computerised electrode surveillance system can be added to ensure that every needle hub has been exposed to the corona treatment.

The station is a compact, self contained, tabletop treating system that includes a microprocessor controlled generator, transformer, electrode assembly and ozone filter.

Normally it would be installed before the adhesive applicator station.

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