Product Sectors

Medical & Diagnostic Product Applications

Medical applications demand uncompromising part-to-part consistency, biocompatible material selection, and clean surfaces free of particulate or grease contamination.

Key Medical Product Verticals

  • In-Vitro Diagnostic (IVD) Cassettes: Point-of-care rapid testing cartridges featuring microfluidic channels, reagent wells, and ultrasonic weld joints.
  • Syringes & Fluid Delivery: High-cavitation (64-cavity and 128-cavity) barrels, plungers, and IV needle hubs molded in medical-grade PP and COP.
  • Surgical Instrument Handles: Rigid structural PEEK and glass-filled polyphenylsulfone (PPSU) components designed for autoclave sterilization.
  • Respiratory & Anesthesia: LSR elastomeric diaphragms, non-rebreather valves, and transparent optical polycarbonate face masks.
Stainless steel multi-cavity medical injection mold built to ISO 13485 standards for diagnostic cartridges
Multi-cavity diagnostic cassette tool built from hardened S136 ESR stainless steel featuring electric hot runner valve gates.
Micro-Machining

Microfluidic Channel Tooling & Optical Precision

Figure 1: Microfluidic Lab-on-a-Chip Capillary Fluid Channel Simulation
Depicting reagent transport through 50-micron molded capillary channels with zero drafted sidewall distortion.
Sample Inlet Well Reaction Zone Waste Reservoir 50-Micron Channel Width Machined via Nano-Finish High-Speed Milling

Sub-Micron Machining & Mirror Polish

Diagnostic lab-on-a-chip cartridges require fluid capillary channels measured in microns. Machining these features requires nano-finish high-speed CNC milling spindles (operating at 40,000 RPM) and diamond fly-cutting.

Optical detection windows are hand-lapped with diamond paste to SPI A1 optical clarity, ensuring distortion-free laser fluorescence reading during diagnostic testing. Learn more on our tooling capabilities page.

Clear optical polymer microfluidic lab-on-a-chip diagnostic test cassette with precision molded microchannels
Optically clear cyclic olefin polymer (COP) microfluidic diagnostic cartridge with laser-welded foil seal.
Cleanroom Infrastructure

Class 100k Cleanroom Molding & Assembly

All-electric Japanese cleanroom molding press producing medical syringe barrels and blood collection tubes
All-electric cleanroom cell operating with HEPA air filtration and automated robotic packaging.

Controlled Production Environment

Our medical manufacturing suites operate under ISO Class 8 (Class 100,000) air cleanliness standards. Key features include:

  • All-Electric Japanese Presses: Sumitomo and Fanuc presses eliminate hydraulic oil mist and airborne particulate risks.
  • Positive Air Pressure: Multi-stage HEPA filtration prevents external dust infiltration during personnel entry.
  • Closed-Loop Resin Feeding: Stainless steel vacuum conveyors deliver resin directly from desiccant dryers into machine hoppers.
Regulatory Compliance

Comprehensive IQ / OQ / PQ Validation

Bringing a medical device to market requires exhaustive documentation proving the injection molding process is stable and repeatable.

Validation Phase Core Objectives Documentation Deliverables
Installation Qualification (IQ) Verify equipment calibration, utility hookups, and tool design specs Calibration logs, tool drawing BOM, steel mill certs
Operational Qualification (OQ) Define upper and lower operating boundaries via Design of Experiments (DOE) DOE parameter matrix, gate freeze studies, viscosity curves
Performance Qualification (PQ) Demonstrate long-term process capability across 3 full production runs Cpk ≥ 1.67 statistical analysis, bioburden testing

First Article Metrology

Using automated Zeiss CMMs, non-contact optical comparators, and CT scanning, every dimension on the 2D balloon drawing is evaluated across all tool cavities. Explore our dedicated mold trials and quality verification page.

Quality control technician performing optical CMM dimensional inspection on medical device components
Automated multi-sensor optical measurement verifying critical dimensions across 32 medical cavities.
Compliance Utility

Interactive Medical Tooling Specifier

Select your medical device classification and resin family to determine required cleanroom protocols, steel metallurgy, and validation levels.

Medical Tooling & Cleanroom Protocol Configurator
Select device risk class to review regulatory and manufacturing requirements.
Cleanroom Standard
Class 100,000 (ISO 8)
Controlled particulate environment
Tool Steel Grade
ASSAB S136 ESR
Vacuum hardened 52 HRC
Validation Level
Full IQ / OQ / PQ
Cpk ≥ 1.67 statistical capability
Press Type
All-Electric Servo
Zero hydraulic fluid in cleanroom
Frequently Asked Questions

Technical Sourcing FAQ: Medical Tooling

What materials are commonly specified for microfluidic diagnostic chips? +
Cyclic Olefin Copolymer (COC) and Cyclic Olefin Polymer (COP) like Zeonor and Topas are standard. They provide glass-like optical transmission, ultra-low autofluorescence, high chemical resistance, and micro-channel replication fidelity.
How does TK Mold USA maintain traceability for medical tooling components? +
Every cavity block, core insert, and pin is laser marked with lot and cavity numbers matching steel mill test certificates, heat treatment charts, and CMM inspection records stored in our permanent digital quality archive.

Developing a Medical Device or Diagnostic Program?

Connect with Brandon Henderson in North Carolina. We will conduct a thorough DFM review on your microfluidic or medical part geometry, cleanroom requirements, and validation timeline.

Request Medical Tooling Quotation Call Brandon: (336) 953-9664