EURPING Q620 Forensic Instrument Washer & Disinfector

Overview

The EURPING Q620 Forensic Instrument Washer & Disinfector is an engineered solution for high-integrity cleaning and thermal disinfection of forensic DNA extraction tools, pathology specimen containers, electrophoresis combs, microcentrifuge tubes, pipette tips, and other critical labware used in low-bioburden, high-sensitivity molecular forensic workflows. It operates on a validated closed-loop washing principle combining precisely controlled high-temperature water circulation (up to 95 °C), multi-directional high-pressure dynamic spray action, and programmable dwell time—ensuring removal of trace biological residues—including residual human DNA, PCR inhibitors, hemoglobin, tissue fragments, and chemical cross-contaminants—while meeting ISO 15883-1 requirements for washer-disinfectors used in clinical and forensic laboratories. Designed specifically for forensic DNA labs where carryover contamination directly compromises STR profiling reliability, the Q620 eliminates manual scrubbing, reduces operator exposure to biohazards and caustic reagents, and supports GLP-compliant documentation of wash cycles.

Key Features

• Chamber constructed entirely from medical-grade 316L stainless steel—resistant to chloride-induced pitting and compatible with aggressive enzymatic and alkaline cleaning chemistries commonly used in forensic decontamination protocols.
• Triple-tier dynamic rotary spray arm system with center-fed gravity-assisted water distribution ensures uniform pressure across all load positions—eliminating shadow zones and enabling consistent cleaning efficacy even for nested or vertically oriented instruments.
• VFD-controlled circulation pump enables precise flow modulation (0–400 L/min), reducing mechanical stress on delicate consumables while optimizing detergent dispersion and soil removal kinetics.
• Integrated pure water booster pump removes dependency on municipal or central pure water line pressure—critical for stable operation in decentralized forensic units or mobile crime lab deployments.
• Microprocessor-based control panel with LED interface stores ≥10 pre-validated wash programs (e.g., “DNA Extraction Tool Rapid Cycle”, “Pathology Slide Rack Standard”, “High-Burden Tissue Residue”) with adjustable temperature ramping, dwell time, rinse count, and drying duration.
• Thermal drying module with condensate recovery system prevents moisture retention in narrow lumens and threaded components—reducing risk of microbial regrowth prior to storage or reuse.

Sample Compatibility & Compliance

The Q620 accommodates standard forensic labware including 1.5 mL and 2.0 mL microtubes, 96-well PCR plates, gel trays, scalpel handles, bone saw blades, autopsy forceps, and custom racks for evidence collection kits. All wash programs are developed and verified per ISO 15883-4 Annex B for prion-inactivation capability and meet EN ISO 15883-1:2015 performance criteria for A0-value generation (≥60 at 90 °C for 1 min). The unit supports audit-ready cycle logging (time-stamped start/stop, temperature profile, flow rate, detergent dispense volume) compliant with forensic chain-of-custody documentation standards and laboratory accreditation requirements (e.g., ANSI/ASQ National Accreditation Board [ANAB] under ISO/IEC 17025:2017).

Software & Data Management

The embedded controller logs full-cycle metadata—including real-time temperature curves, pump RPM, detergent dosing events, and door interlock status—to internal non-volatile memory (≥10,000 cycles). Optional Wi-Fi or Ethernet connectivity enables remote monitoring via secure HTTPS web interface and export of CSV-formatted cycle reports for integration into LIMS or electronic lab notebooks (ELN). Audit trail functionality complies with FDA 21 CFR Part 11 requirements for electronic records and signatures when paired with user authentication and role-based access controls.

Applications

• Routine decontamination of DNA extraction consumables between casework samples to prevent allele dropout or false allele calls.
• Cleaning of histopathology cassettes, embedding molds, and tissue processing accessories exposed to formalin-fixed specimens.
• Post-autopsy instrument reprocessing in medicolegal death investigation units.
• Validation support for forensic laboratory accreditation (e.g., ASCLD/LAB, ISO 17025) through documented thermal and mechanical cleaning efficacy.
• Reduction of occupational exposure to bloodborne pathogens (HBV, HIV, HCV) and hazardous fixatives (formaldehyde, glutaraldehyde) during manual cleaning procedures.

FAQ

Does the Q620 validate removal of human genomic DNA from pipette tips and microtubes?
Yes—validation studies using qPCR quantification of residual β-globin DNA demonstrate >6-log reduction after standard “DNA Tool” program execution.
Can third-party detergents be used?
Only EURPING-certified enzymatic and low-foaming alkaline formulations are approved; non-certified agents may impair pump longevity or leave residue interfering with downstream PCR amplification.
Is the unit suitable for GMP-regulated forensic reference labs?
Yes—the Q620 supports IQ/OQ/PQ documentation packages and includes factory-installed calibration certificates traceable to NIST standards.
What maintenance intervals are recommended?
Quarterly inspection of spray arms, monthly filter cleaning, and annual verification of temperature sensors and flow meters per EURPING Maintenance Protocol MP-Q620-REV3.
Does it comply with EU Medical Device Regulation (MDR) classification?
The Q620 is classified as Class Ir (low-risk reusable device washer) under MDR Annex VIII and bears CE marking per EN ISO 15883-1:2015.