Intraocular Injector with Depth-Controlling Stop and Removable Catch

The catch is positioned in advance to prevent premature ejection of the implant before the needle is properly inserted into the target tissue. This preliminary protective action ensures the implant remains secured during the critical setup phase, then can be released at the appropriate moment to enable controlled delivery.

The stop replaces complex electronic depth control systems with a simple mechanical feature. The stop physically blocks the needle at a predetermined depth, eliminating the need for sophisticated sensors, motors, or control algorithms while achieving the same safety outcome of preventing over-penetration.

The protective features are segmented into detachable components that can be attached when needed and removed when not needed. This allows the device to have protection capabilities without permanently increasing its structural complexity, as the protectors are separate, modular elements.

The stop provides self-regulating depth control that automatically prevents over-penetration without requiring the operator to actively monitor or adjust settings. The mechanical stop serves itself by physically blocking further needle advancement, making safety built into the device rather than requiring skilled operator technique.