It is mostly used for WHO or UN aid projects, the plunger of the syringe was locked to prevent reuse, and help eliminate touch contamination.
Features
In all cases, once the auto-disable feature has been activated, It was not possible to re-use the syringe and the needle under the ordinary conditions of use.
It was not possible to override the auto disable feature when tested in accordance with the test method of
ISO7886-3 Annex C.
Type 1, With Integrated needle
If an integrated needle is used, it shall become an integral part of the syringe and can not be detached.
The auto disable feature is automatically and remains effective from the point when 50% of the intended fixed dose has been delivered Invention patented.
Type 2, With non-integrated needle
Syringe with non-integrated needle shall have a minimum needle unicon force applied as push or pull in the direction of the needle axis in accordance with ISO 7864:1993.
The autodisable feature is automatically activated on completion of the delivery of the intended fixed dose.