A TSK BRAND
Precision Needle Technology for Ophthalmic Drug Delivery
With 510k and ophthalmic approval across various regions, STERiJECT ensures you can always demand the correct balance of penetration depth, gauge selection and flow to effectively deliver vision-saving therapies.
Explore by Specialty
From the lab to the clinic, we've got you covered
Explore our clinically proven solutions, engineered for low volume & viscous product delivery.
Learn more EngineeringSTERiJECT connects formulation to delivery-system engineering with a stable, scalable supply.
Learn more ScienceSTERiJECT's engineered consistency gives drug development a reliable constant from bench through clinic.
Learn moreEngineering
We engineer every part of the needle against your payload.



A standard hub can leave a meaningful share of a small dose behind. Our low-dead-space geometry closes that gap, cutting the residual volume left at the connection.
Learn moreHard-polymer, externally threaded hubs and streamlined internal transitions resist pop-off and turbulence, keeping the connection secure as injection pressure rises.
Learn moreA thinner cannula wall opens up internal diameter without changing the outer gauge, lowering extrusion force and easing flow for viscous formulations.
Learn moreA precision bevel cuts penetration force, and a proprietary low-friction coating reduces drag through tissue for a more controlled, comfortable injection.
Learn moreUltra-fine gauges down to 34G, paired with tightly controlled short lengths, give the most delicate procedures a repeatable penetration depth.
Learn moreHub and contact materials are selected against your excipients, pH and sterilization route, so extractables, leachables and adsorption are engineered out early.
Learn moreOur products
STERiJECT offers four product families: VLDS, LDS, HPC and PRE. Each combines a distinct hub with differing options for gauge, length, wall, and internal-diameter.
Availability, labeling, and regulatory status vary by product code and region.
Innovation
Some delivery challenges can't be addressed with an existing product.
TSK brings clinical insight, engineering, quality and manufacturing experience together to help evaluate the delivery path. If the needle your formulation needs does not exist, we will build it.

Next step
Choose a clinical pathway, review the product and evidence information, or contact TSK to discuss a specific ophthalmic delivery need.