A preloaded discharge spring drives a piston rod in an injection device with a helical dose scale for intuitive setting.
A resilient force member releases stored energy to impact a surface and generate an audible signal when transitioning from a biased state.
A disposable drug delivery device integrates a pre-filled cartridge and hollow needle for automated medication administration.
Dual clutch mechanism ensures drive member rotational coupling to prevent misalignment in injection devices.
L-shaped groove geometry prevents cross-use of incompatible containers while maintaining simple device structure.
A spring-loaded fluid dosing device employs a nested drive element to maintain dosing accuracy while dispensing high viscosity fluids.
A syringe cap assembly vents gas from a closed space before sealing to maintain reduced internal pressure.