The specially constructed plastic cap adapter is placed on top of the primary closure of the syringe and interlinked with it in order to equalize the diameter differences of the syringe body and closure. This enables easy application of a tamper protection label with an integrated perforation that wraps around the syringe body and the bottom part of the cap adapter. When a user opens the syringe cap the label is partially destroyed, and clearly and irreversibly indicates that the cap has been opened.
Cap-Lock, the tamper-evident combination of cap adapter and label can be applied to the syringe in the conventional production process. Compared to shrink-wrap solutions, no heat is applied so that this solution is also suitable for sensitive substances. The label can be provided with additional functionalities such as anti-counterfeiting features, detachable documentation labels or light protection. Both the label and adapter can be customized in terms of color and design. Due to the interlinking of the adapter with the primary closure of the syringe, no additional waste is generated because both parts are firmly connected to each other. The solution is adaptable to many commonly used syringe sizes.
