Published：Zorapid.Ltd
This complete audit checklist is designed for medical device buyers to qualify and audit suppliers of biocompatible machined, molded, LSR, stamped and additive-manufactured parts. It aligns with ISO 13485:2016, ISO 10993, FDA 21 CFR Part 820, EU MDR 2017/745, covering pre-qualification, material control, cleanroom production, process validation, cleaning, biocompatibility testing, sterilization compatibility, traceability, packaging and regulatory documentation.
Pre-Award Pre-Qualification Document Checklist
Mandatory Quality System Certifications
Valid ISO 13485:2016 certificate with full scope covering medical component manufacturing
9001:2015 foundational quality management system
ISO 14644 cleanroom classification certificate (Class ISO 7 / ISO 8 for fluid-contacting & implant parts)
ISO 17025 accredited lab certification for extractables, leachables and biocompatibility testing
Supporting documentation for FDA registration / EU MDR technical file compilation
RoHS & REACH compliance declarations; no restricted hazardous substances
NADCAP accreditation if supplier provides heat treatment, electropolishing or passivation for implant metals
Biocompatible Material Experience & Certifications
Proven manufacturing experience with medical-grade biocompatible materials:
Plastics: Medical PP, COC/COP, PEEK, PPSU, PSU, medical PA
Elastomers: Platinum-cured medical LSR only (peroxide-cured silicone prohibited for long-term contact)
Metals: 316LVM stainless steel, Ti6Al4V ELI, medical-grade copper alloys
Archive of complete MTRs with low-extractable & low-leachable data for all used materials
Full ISO 10993 third-party test reports matching each material grade
Written policy banning recycled/regrind resin on fluid-contact, blood-contact or implant surfaces
Approved masterbatch list: only medical-grade, heavy-metal-free colorants
Customer Reference & Regulatory Track Record
At least 3 verifiable medical OEM / Tier 1 customer references (disposable surgical, implant or diagnostic devices)
Sample DHF, DMR, PFMEA and PPAP records from past medical projects
No unresolved major non-conformities from prior FDA / MDR third-party audits
Formal export control documentation (ITAR if producing surgical hardware for overseas defense medical programs)
Raw Material Receipt, Segregation & Traceability Control
Dedicated, locked raw material warehouse fully separated from industrial/automotive raw stock
All biocompatible materials labeled with heat lot number, material grade and biocompatibility certification
Incoming PMI verification station (FTIR / XRF) to eliminate material mix-up risks
Closed traceability chain: raw heat lot → production batch ID → finished part serial/lot number
Temperature & humidity controlled sealed storage zone for implant-grade sensitive materials
Formal prohibited material list: leaded alloys, sulfurized cutting fluids, unapproved industrial additives
Shelf-life tracking system for LSR, thermoplastics and sterilization-sensitive polymers
Isolated quarantine area for non-conforming incoming materials with documented rejection records
Cleanroom Production Environment Audit Items
Positive-pressure laminar flow cleanroom with continuous HEPA/ULPA air filtration
Daily particle count logs (0.1 μm & 0.5 μm); weekly bioburden monitoring records
Strict full gowning procedure: lint-free coveralls, nitrile gloves, hair/beard nets, cleanroom boot covers
Complete ban on food, drinks, cosmetics and personal items inside cleanroom boundaries
Production machines, tooling and fixtures dedicated solely to medical manufacturing
Only medical-grade, low-particulate, non-shedding lubricants used on all equipment
Separate independent cleanroom cell for implant-grade component production
Full ESD grounding system for electronic surgical sensor hardware
Scheduled deep clean protocol with lint-free wipes and medical neutral detergents
Manufacturing Process Control
Formal medical-focused DFM review completed before mold cutting or mass production
Process Flow Diagram, PFMEA and Production Control Plan mapping all biocompatible critical characteristics
Medical-grade corrosion-resistant mold steel (S136 / STAVAX) for molding cavities
Ban of silicone spray release agents on fluid-contact surfaces; only semi-permanent medical coating allowed
Low-VOC, low-extractable DI-water-based synthetic coolant exclusively used for metal machining
In-process automated inspection stations to minimize human handling of critical biocompatible surfaces
Continuous real-time logging of all critical process parameters (temperature, pressure, cycle time)
Standardized tool maintenance log to prevent metal particulate contamination
Non-abrasive ceramic media only for deburring; sandpaper/abrasive grit prohibited on fluid-contact faces
Formal ECN engineering change control: all material/process/mold revisions require customer approval and revalidation
Ultra-Cleaning & Secondary Post-Processing
Multi-stage ultrasonic cleaning line with 18.2 MΩ·cm pure DI water
Standard cleaning sequence: medical alkaline detergent → multi-stage DI cascade rinse → low-VOC IPA rinse → nitrogen bake-out
Bake-out temperature and holding time validated to eliminate organic extractables
Liquid Particle Count (LPC) testing after cleaning to verify zero residual swarf or coolant
NADCAP-certified electropolishing / passivation for titanium and stainless implant components
Mandatory post-cure bake cycle for LSR to reduce volatile leachables
All cleaning fixtures made of PEEK or electropolished 316L stainless; ferrous steel fixtures prohibited
Independent temperature-controlled drying oven dedicated to medical parts only
Documented bioburden reduction workflow prior to final packaging
Sterilization Compatibility Validation
Material test data matching customer’s sterilization method: EtO, gamma irradiation, E-beam, autoclave
Post-sterilization dimensional stability test records (no warpage, brittleness or discoloration)
ISO 10993-12 extractables & leachables reports after repeated sterilization cycles
ISO 11607 certified barrier packaging compatible with specified sterilization technology
Residual ethylene oxide test records if EtO sterilization is applied
No plasticizer migration observed after repeated sterilization exposure
Biocompatibility & Laboratory Testing Compliance
Full ISO 10993 testing package based on device tissue contact duration:
Short-term disposable (<24h): Cytotoxicity, irritation, sensitization
Long-term implant (>30 days): Hemocompatibility, chronic toxicity, genotoxicity, degradation analysis
All critical implant biocompatibility tests completed by independent ISO 17025 third-party labs
Scheduled periodic re-testing triggered by raw material batch or process changes
LAL endotoxin testing mandatory for blood-contact and parenteral disposable parts
XRF elemental surface scanning to screen heavy metal contamination on finished hardware
Low-outgassing test data for surgical vacuum chamber components
Inspection, Metrology & Quality Control
Non-contact optical CMM / laser measuring equipment for CTQ biocompatible sealing surfaces
Gage R&R studies completed for all critical measuring tools; GR&R ≤10% for implant-grade features
10× magnified visual inspection station to screen micro-burrs, scratches and embedded particles
SPC continuous process monitoring; Cpk ≥ 1.33 for all biocompatible critical dimensions
Permanent laser UDI/lot marking only on non-fluid-contact surfaces; deep engraving on implant surfaces forbidden
Isolated quarantine zone for non-conforming finished goods with full SCAR closed-loop corrective action records
Packaging & Finished Goods Storage
ISO 11607 sterile barrier packaging with full material MTR certification
Double dust-free, ESD-shielded nitrogen-purged packaging for clean critical components
Lint-free, non-volatile printing ink used for all part labels
Each label includes batch lot number, material grade, sterilization compatibility and shelf-life expiry date
Temperature-controlled dry finished goods warehouse, fully separated from industrial metal/plastic stock
Non-migrating anti-contamination protective foam for part transportation
Strict FIFO inventory rotation to avoid long-term aging of biocompatible polymers
Regulatory Document Retention & Configuration Management
All manufacturing records retained for a minimum of 15 years post product end-of-life (ISO 13485 / FDA requirement)
Complete Design History File (DHF) archive: DFM, FMEA, control plans, test reports, AS9102 FAI
Device Master Record (DMR) fully filled out for every production batch
Closed-loop CAPA system with 5-Why root-cause analysis for all biocompatibility-related non-conformities
Full certification files retained for all outsourced sub-processes (plating, cleaning, sterilization)
Digital traceability archive with instant retrieval capability for customer and regulatory audits
Formal re-qualification procedure after any material, mold, process or packaging modification
Critical Red Flags – Supplier Disqualification Triggers
Shared production lines / warehouses for medical and industrial/automotive components without full validated changeover cleaning
Use of untested recycled/regrind plastic on blood-contact or implant surfaces
Inability to provide third-party ISO 10993 biocompatibility test reports
Supply of peroxide-cured silicone for long-term fluid or implant applications
Missing daily particle / weekly bioburden cleanroom monitoring logs
Refusal to implement full end-to-end raw-to-finished part traceability
Unresolved major non-conformities from previous MDR / FDA supplier audits
No formal ECN change control system for production processes and materials
FAQ
What core ISO 10993 tests are required for single-use blood-contact medical parts?
Cytotoxicity, skin irritation, sensitization, hemocompatibility, LAL endotoxin testing, plus extractables and leachables analysis after sterilization.
Why must medical production equipment be completely separated from industrial manufacturing?
Cross-contamination from ferrous metals, industrial coolants, sulfur additives and non-medical plastics will leave cytotoxic residues on components, leading to biocompatibility test failure and patient safety risks.
Can peroxide-cured LSR be used for implantable or fluid-sealing medical parts?
No. Peroxide curing leaves toxic residual byproducts and high leachable substances; only platinum-cured medical LSR meets ISO 10993 standards for long-term tissue contact.
How long does a medical component manufacturer need to retain all batch and test records?
A minimum of 15 years after the product’s end of production, per ISO 13485 and FDA 21 CFR regulatory rules.
Is in-house lab biocompatibility testing acceptable for implant-grade components?
Not for regulatory submission. Long-term implant devices require biocompatibility testing by an independent, ISO 17025 accredited third-party laboratory to pass FDA and EU MDR audits.
