Designing for Functionality: How We Support Cartridge Development from Concept to Production
- TN Plastics
- Sep 12
- 2 min read
Innovative diagnostic cartridges succeed when smart design and reliable manufacturability go hand-in-hand. At TN-plastics, we support our clients from initial sketches all the way to validated production—ensuring every cartridge is functional, manufacturable, and proven in real-world use.
Collaboration from Day One
Every partnership begins with deep listening. We engage clients early—learning about assay requirements, device goals, fluidics, and integration. Our engineers provide design recommendations for channel geometries, materials, and features that maximize cartridge functionality and manufacturability.
Design for Manufacturability: From Concept to Reality
We help translate ideas into robust, injection-moldable designs. Our guidance includes optimal wall thickness, draft angles, gating, and venting—eliminating common molding issues. Whether rapid prototypes or full-scale tools, we ensure every design detail supports smooth, repeatable manufacturing.
Optimize part features: gates, runners, vents, radii
Enable ejection and high yields: proper drafts and wall management
Iterate with rapid prototyping and simulation before building tools\
Expert Mold and Process Development
For every new cartridge, our engineers develop tailored mold solutions. We use mold flow analysis, multi-cavity and multi-material mold strategies, and validate via pilot runs. Tooling is precisely engineered to ensure cartridge reproducibility, dimensional stability, and downstream assembly compatibility.
Cleanroom Production for Cartridge Development. Proven Quality.
Once designs are validated, our Class 8 (ISO 14644-1) cleanroom manufacturing ensures every cartridge meets strict quality, biocompatibility, and sterility standards. Our process—rooted in ISO 13485 certification—includes full traceability, advanced testing, and quality documentation at every step.
Why Partner with TN-plastics?
Early design collaboration to optimize both function and manufacturability
Advanced mold design and in-house tool building
Cleanroom production with complete validation and traceability
Experience supporting top diagnostic companies from prototype to high volume
From idea to millions of reliable cartridges, TN-plastics delivers functionally proven, manufacturable, and breakthrough solutions—every step of the way.