1ml/2.25ml Disposable Insulin Auto Injector Pen for Prefilled Cartridges - Diabetes Care Solution

What makes it worth buying is the customiaztion—you can dial in vial sizes, labeling, concentration, and even bulk synthesis, so it’s not a one-size-fits-all deal. Most buyers go with the 1ml model for portability, but the 2.25ml version handles higher doses without refills.

It’s a fixed-dose pen with a needle cover activation mechanism, so you push it against skin and it fires—visual and auditory feedback confirm the injection. viscosity limit is ≤20cP, which covers insulin and most biologics, but don’t push it with thick suspensions. Injection depth is 6±2mm, subcutaneous only—not suited for intramuscular use.

Needle size is 27G or 29GTW (typically 29G for less pain), and injection time is customizable, though we usually set it to 10 seconds or so. The 1ml model measures 18×18×145mm, compact enough for a pocket, and it’s single-use disposable with a permanently hidden needle—no exposed sharps.

Compatibility spans standard 1ml and 2.25ml prefilled cartridges, but confirm your cartridge flange dimnesions match—we’ve seen slight variations. Matrial is medical-grade plastic, and it passes standerd biocompatibility tests, but we don’t have data on long-term solvent exposure beyond ethanol.

Lead time is roughly 6-8 weeks for custom runs, with a MOQ of 5000 units, our company have stock on the standard 1ml version (about 2000 units) if you need samples fast. COAs are provided per batch, but HPLC purity data comes from the cartridge filler, not the pen itself.

Anyway, the feedback system is reliabel—you’ll hear a click and see a plunger window change—but it’s not as loud as some electronic pens. One-handed operation works fine, but the activation force is about 15N, so people with weak grip might struggle.