High-Viscosity Ocular Drug Delivery

High-Viscosity Ocular Drug Delivery

A scalable solution capable of delivering micro-volume doses with accuracy and consistency.

High-Viscosity Ocular Drug Delivery

A scalable solution capable of delivering micro-volume doses with accuracy and consistency.
Ocular Drug Delivery prototype delivering liquid into the eye upon pressing on it

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Topics

Drug Delivery

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Context

A Series A/B ophthalmology biotech partnered with iO Lifescience to develop the first prototype of a precision intravitreal delivery system for high-viscosity biologics. The aim: create a surgeon-friendly, scalable solution capable of delivering micro-volume doses with accuracy and consistency, ready for pre-clinical and early clinical evaluations.

Challenges

The program required combining micro-mechanical precision with clinical usability:

  • Viscosity & dose control: Deliver tens of microliters through 30–33G needles with controlled force and no shear degradation.
  • Human factors: Enable one-handed use with tactile cues and aspiration safeguards for retina specialists.
  • Container & materials: Use low-silicone, tungsten-free components with validated container-closure integrity.
  • Scalability: Co-develop with tier-1 suppliers for moldable, sterilizable, and assembly-ready parts.
  • Speed: Produce evidence-ready prototypes for pre-clinical and workflow validation within weeks.

iO Lifescience delivered systems design, container selection, bench testing, human-factors studies, packaging rationale, verification strategy, and pilot manufacturing plans.

Outcomes

  • Concept-to-alpha in 10 weeks, beta units in 14 weeks for pre-clinical testing.
  • Precision verified: Target micro-volumes delivered through 30–33G needles within 7 seconds, ≤10 N plunger force.
  • ≥95% task success; design locked for summative testing.
  • Manufacturing readiness: Geometry and DFM frozen with high-volume suppliers.
  • Regulatory foundation: RMF, usability risk analysis, and verification matrix compiled for pre-clinical approval path.

 

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Ocular Drug Delivery prototype delivering liquid into the eye upon pressing on it

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