Cubic Gasboard-7030 Pulmonary Waveform Generator

Overview

The Cubic Gasboard-7030 Pulmonary Waveform Generator is an electromechanically actuated precision flow and volume source engineered for metrological traceability in pulmonary function testing (PFT) calibration and verification. It operates on a controlled piston-cylinder principle driven by an AC servo motor and high-resolution motion controller, enabling deterministic displacement of air to replicate human respiratory mechanics—including tidal breathing, forced expiratory maneuvers, and peak flow events. Unlike passive flow generators or pressure-driven systems, the Gasboard-7030 delivers time-synchronized, repeatable volumetric waveforms with full digital control over amplitude, frequency, duty cycle, and shape. Its design conforms to the physical requirements of Body Temperature and Pressure, Saturated (BTPS) conditions—maintaining 37 °C ±2 °C and 92% relative humidity ±5%—to ensure physiological relevance during device validation. The system is not intended for clinical diagnosis or patient use; rather, it serves as a reference-grade stimulus generator for laboratory-based performance assessment of spirometers, peak flow meters, and whole-body plethysmographs.

Key Features

• Multi-waveform generation: Programmable sine, square, trapezoidal, and fully customizable user-defined waveforms via intuitive PC software interface
• Traceable metrology: All volume and flow parameters are calibrated against national standards (GB/T 34059–2017 and JJF 1483–2014), with documented uncertainty budgets available upon request
• BTPS-conditioned output: Integrated thermal and humidification modules maintain stable 37 °C ±2 °C temperature and 92% RH ±5% humidity across the full dynamic range
• High-fidelity mechanical actuation: Precision-ground cylinder-piston assembly coupled with closed-loop servo control ensures ≤0.2% volume error and ≤0.5% flow rate error
• Automated test sequencing: Scriptable test protocols support multi-point linearity checks, repeatability assessments, and inter-device comparability studies
• Comprehensive data logging: Real-time waveform capture at ≥1 kHz sampling rate, exportable in CSV and HDF5 formats for post-processing in MATLAB, Python, or LabVIEW

Sample Compatibility & Compliance

The Gasboard-7030 is validated for use with all major classes of pulmonary function analyzers compliant with international regulatory frameworks. It directly supports verification against ATS/ERS 2005 and 2019 spirometry standards (including ATS-24 volume–time and ATS-26 flow–time reference waveforms), ISO 23747:2015 for peak expiratory flow (PEF) meters (Annexes A and B), and EN ISO 26782:2009 for respiratory equipment performance evaluation (Test C1 through C11, Annexes C12–C13). Its output waveform fidelity meets the temporal resolution and amplitude stability requirements defined in IEC 60601-2-55 for medical electrical equipment—specifically for devices used in pulmonary diagnostics. While the unit itself does not require FDA 510(k) clearance (as it is a non-invasive calibration tool), its calibration documentation supports GLP-compliant audit trails required by regulatory bodies including NMPA, CNAS-accredited labs, and EU Notified Bodies.

Software & Data Management

The Gasboard-7030 is operated via Cubic’s proprietary WaveCal™ Control Suite, a Windows-based application supporting both manual waveform configuration and automated script execution. The software provides real-time visualization of generated flow and volume curves, overlay comparison against reference standards, and statistical reporting (mean, SD, CV%, max deviation). All control commands, calibration metadata, and measurement logs are timestamped and stored with SHA-256 hash integrity verification. Audit trail functionality complies with ALCOA+ principles and satisfies basic requirements for 21 CFR Part 11 electronic records—though full Part 11 compliance requires site-specific IT validation. Export options include CSV (for Excel analysis), HDF5 (for scientific computing), and PDF reports with embedded digital signatures. Firmware updates are delivered via secure HTTPS channel with cryptographic signature verification.

Applications

• Annual metrological verification and routine calibration of spirometers, pneumotachographs, and portable PEF meters in hospital biomedical engineering departments
• Performance evaluation and type-testing of new PFT devices by regulatory testing laboratories (e.g., NIM, Wuhan Institute of Metrology)
• Method development and uncertainty analysis for respiratory flow measurement techniques in academic and industrial R&D settings
• Inter-laboratory comparison studies organized under CNAS ILAC MRA frameworks
• Validation of BTPS correction algorithms in next-generation lung function analyzers
• Training and proficiency testing for pulmonary function technologists and calibration engineers

FAQ

Is the Gasboard-7030 suitable for in-vivo human testing?
No. It is strictly a benchtop calibration instrument and must never be connected to a subject or used in direct patient care.
Does the system include NIST-traceable calibration certificates?
Yes. Each unit ships with a factory calibration report traceable to China National Institute of Metrology (NIM), with optional UKAS or DAkkS-accredited certificates available upon request.
Can the waveform generator interface with third-party DAQ systems?
Yes. Analog voltage outputs (0–10 V for flow and volume) and TTL synchronization triggers are provided; digital communication uses USB 2.0 CDC-class virtual COM port protocol.
What maintenance is required?
Annual recalibration is recommended. The piston seal and humidity wick should be inspected quarterly; replacement parts kits are available under Cubic part number G7030-MK1.
Is remote operation supported?
Yes. WaveCal™ supports TCP/IP-based remote control via LAN, enabling integration into centralized calibration management platforms.