Microorganism Identification & Stain Typing
Microorganism identification and strain typing are critical quality control measures for medical devices that come into direct or indirect contact with patients, particularly those used in sterile or invasive applications. Microorganism identification determines the species or genus level of contaminants (e.g., bacteria, fungi), while strain typing differentiates closely related strains within the same species (e.g., tracking antibiotic-resistant variants). These analyses are essential for:
- Root cause investigations in manufacturing or post-market contamination events.
- Regulatory compliance (ISO 11737, ANSI/AAMI ST72, FDA/EMA requirements).
- Sterility assurance and validation of cleaning/disinfection processes.
- Epidemiological tracing of hospital-acquired infections linked to devices.
At Meditronics (a brand of STEMart), we provide comprehensive microbial identification and strain typing services to ensure your medical devices meet global safety standards and regulatory expectations.
Our Service
Our services comply with ISO 11737 and ANSI/AAMI ST72, covering a full spectrum of microbial analysis needs.
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Microorganism Identification Services
We employ advanced, high-accuracy methods to identify microbial contaminants:
- MALDI-TOF Mass Spectrometry: Analyzes unique protein fingerprints of microorganisms using mass spectrometry.
- 16S rRNA Sequencing (Bacteria) / 25S rRNA Sequencing (Yeasts) / ITS1/ITS2 DNA Sequencing (Fungi): Amplifies and sequences conserved ribosomal RNA genes to identify species.
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Strain Typing Services
For tracking strain-level differences, we offer multiple high-resolution genotyping methods:
- Multi-Locus Strain Typing (MLST) / Single-Locus Strain Typing (SLST): Sequences 7+ housekeeping genes (MLST) or a hypervariable locus (SLST) to classify strains.
- Arbitrary Primed PCR (APPCR / RAPD): Uses random primers to generate strain-specific DNA fingerprints.
- Variable Number of Tandem Repeats (VNTR / MLVA): Detects tandem repeat variations in bacterial genomes.
- Pulse Field Gel Electrophoresis (PFGE / CHEF): Separates large DNA fragments using pulsed-field electrophoresis.
- MicroSatellite Analysis (MSAT / SSR): Analyzes short sequence repeats via capillary electrophoresis.
Why Choose Meditronics?
✔ Advanced Technology & Diverse Method Portfolio
- Multiple identification & typing options (MALDI-TOF, sequencing, PFGE, MLST).
- Customized approaches for complex samples (e.g., biofilm-associated microbes).
✔ Expert Team & Regulatory Support
- Experienced microbiologists with FDA/ISO compliance expertise.
- Failure investigations & corrective action guidance for contamination events
✔ ISO 17025 Accredited Laboratory
- Audit-ready testing with full traceability.
- Globally recognized reports for submissions to FDA, EMA, NMPA.
✔ End-to-End Service
- From bioburden testing to strain-level tracking.
- Fast turnaround, with expedited options for urgent cases.
Meditronics's cutting-edge lab and regulatory-compliant processes ensure your medical devices meet the highest microbial safety standards. Whether you need routine bioburden testing, contamination root cause analysis, or high-resolution strain typing, we deliver accurate, defensible, and actionable data.
Contact us today to discuss your testing needs and request a quote. Let Meditronics be your trusted partner in medical device quality and patient safety.
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