A reusable drive uses two rack-and-pinion mechanisms to deploy the needle and deliver medication while disposable cartridges are replaced.
Elastic engagement between the floating seal and needle base enables controlled advancement and steady, defined-volume delivery.
A two-stage bayonet interface and ramp protect cartridges while establishing correct attachment and a defined starting position.
Chlorinated polypropylene ink fills recessed polyolefin surfaces, preserving graduation accuracy and reducing contamination risk.