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Syringes - Ritract Syringe

Supplier: Wickham Plastics

Syringes - Ritract Syringe, designed and developed the product function together with reliable, efficient production manufacture, of an injection moulded plastic retractable safety syringe from a customer’s concept sketch only.

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Syringes - Ritract Syringe

Significant innovation resulted in a patented product that after a single use, the inner barrel and needle retract inside the main barrel of the syringe and are securely locked in place, thus preventing needle stick injury and re-use of the syringe.

Key technical challenges that were overcome in the prototyping stage included:

  • Unique limit catch design preventing premature retraction of the needle during the pre-fill stroke;
  • The engagement of moulded flexible fingers on the barrel that upon the injection stroke, reverses the one-way lock mechanism to allow needle retraction at the same time preventing forward needle movement.

The technology developed by Wickham has been successfully applied across all sizes (ml) of syringes.

 

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