Autobio Autostreak S1800 Fully Automated Streaking and Inoculation System

Overview

The Autobio Autostreak S1800 is a CE-IVD marked, fully automated microbial sample processing system engineered for standardized, reproducible primary isolation of pathogenic microorganisms from liquid clinical specimens. Designed specifically for high-volume clinical microbiology laboratories, it integrates enzymatic sputum liquefaction, precise volumetric dispensing, and patented spiral or quadrant streaking onto solid agar media—executed without manual intervention. Its core operational principle relies on gravimetric and time-controlled fluid handling combined with motorized, vision-guided mechanical arm movement to ensure consistent loop-to-plate contact geometry and defined inoculum density across all streak zones. This eliminates inter-operator variability inherent in manual streaking while maintaining full compatibility with CLSI M02-A12 and ISO 20776-1 standards for quantitative culture methodology.

Key Features

• Fully automated sputum liquefaction module with integrated proteolytic enzyme delivery and temperature-regulated incubation (37 °C ± 0.5 °C), achieving complete homogenization within 5 minutes.
• Precision liquid handling system delivering 10 µL ± 5% volume accuracy per inoculation event, calibrated against NIST-traceable standards.
• Patented dual-mode streaking mechanism supporting both continuous spiral (Walkaway) and four-quadrant (Streak Plate) patterns, configurable per plate type and organism class.
• Class II biosafety cabinet–compliant internal chamber with inward airflow velocity ≥0.5 m/s, negative pressure differential (−20 Pa vs ambient), and real-time airflow monitoring.
• HEPA H14 filtration system (EN 1822-1 compliant) with automatic filter life tracking and alarm-triggered replacement prompts.
• UV-C decontamination cycle (254 nm, 30 mJ/cm² dose) activated automatically post-run, with door interlock and sensor-verified irradiance validation.
• Single-use consumables architecture: sterile polypropylene tips and carbon-fiber inoculation brushes prevent carryover between samples and eliminate cleaning validation burden.

Sample Compatibility & Compliance

The Autostreak S1800 accepts liquid specimens including expectorated sputum, bronchoalveolar lavage (BAL) fluid, cerebrospinal fluid (CSF) supernatants, and enriched blood culture broths. It supports standard 90 mm and 100 mm Petri dishes with agar media types such as Columbia CNA, MacConkey, Chocolate, and Sabouraud dextrose. All hardware and software components comply with IEC 61010-1 (Safety Requirements for Electrical Equipment), IEC 61326-1 (EMC for Laboratory Equipment), and ISO 13485:2016 quality management systems. The instrument’s data integrity framework meets FDA 21 CFR Part 11 requirements through role-based access control, immutable audit trails, and electronic signature functionality validated per GAMP 5 guidelines.

Software & Data Management

The embedded Autostreak Control Suite (v3.2+) provides intuitive touchscreen operation with multilingual UI (English, Spanish, French, Arabic). Real-time dashboards display consumable inventory levels (tips, brushes, reagents), instrument status (airflow, UV lamp hours, HEPA delta-P), and run progress with estimated completion time. All actions—including user logins, parameter changes, error events, and maintenance logs—are timestamped and stored locally with optional encrypted export via USB or network share. LIS connectivity uses ASTM E1384-compliant message structures for bidirectional sample ID exchange, result acknowledgment, and QC flag propagation. Data retention supports ≥12 months of full audit history with optional integration into laboratory-wide LIMS platforms via HL7 v2.5.1 interfaces.

Applications

• Routine respiratory microbiology workflows requiring rapid, standardized isolation of Mycobacterium tuberculosis, Streptococcus pneumoniae, Haemophilus influenzae, and Pseudomonas aeruginosa from sputum.
• Antimicrobial stewardship programs where quantifiable colony isolation enables direct susceptibility testing without subculture delay.
• Reference laboratory environments performing GLP-compliant method verification and proficiency testing according to CAP MMBM.40750 and UK NEQAS protocols.
• Hospital central labs seeking ISO 15189:2022 compliance for pre-analytical process standardization and traceability across specimen receipt to plate incubation.
• Public health surveillance networks requiring harmonized streaking parameters across geographically distributed sites for epidemiological strain comparison.

FAQ

Does the Autostreak S1800 support non-sputum liquid specimens such as urine or CSF?
Yes. The system accepts any clarified or centrifuged liquid specimen with viscosity <10 cP and particulate load <5% v/v. Custom protocols can be configured for low-volume or low-bioburden samples.
Can the streaking pattern be modified per organism or medium type?
Yes. Operators select from six preset patterns (including CDC-recommended “Zig-Zag” and EUCAST-suggested “Three-Loop”) or define custom trajectories using the built-in graphical editor.
Is routine calibration required by the user?
No. Volume delivery accuracy is factory-validated and verified semi-annually via onboard gravimetric checks using certified reference weights; no field calibration tools are needed.
How is bi-directional LIS communication secured?
All HL7 messages are transmitted over TLS 1.2-encrypted TCP/IP connections with mutual certificate authentication and message-level digital signatures.
What regulatory documentation is provided for installation qualification (IQ) and operational qualification (OQ)?
Autobio supplies IQ/OQ/PQ protocol templates aligned with ISO/IEC 17025 and CLIA requirements, including test scripts, acceptance criteria, and blank execution records—all editable for site-specific validation.