SUNS SHD3000Z Integrated Respiratory Cycle & Burst Pressure Tester

Overview

The SUNS SHD3000Z Integrated Respiratory Cycle & Burst Pressure Tester is a dual-function, high-precision instrumentation platform engineered for the mechanical validation of medical respiratory devices—including ventilator circuits, breathing tubes, anesthesia masks, and disposable oxygen delivery systems. It combines two distinct but complementary pressure-based testing modalities—controlled leak integrity assessment and dynamic burst pressure evaluation—within a single, synchronized hardware architecture. The system operates on differential pressure decay and real-time pressure ramping principles, compliant with foundational test methodologies outlined in ISO 8536-4 (infusion equipment), ISO 10993-1 (biocompatibility evaluation support), and ASTM F1897 (standard test methods for evaluating integrity of respiratory device connections). Its dual-channel design enables parallel testing of identical or dissimilar specimens, significantly improving throughput in quality control laboratories operating under ISO 13485 or FDA QSR (21 CFR Part 820) frameworks.

Key Features

• Dual-test capability: Simultaneous execution of standardized respiratory cycling (ISO 18562-2 compliant waveform simulation) and controlled burst pressure ramping up to 3 MPa, with programmable pressure hold, ramp rate, and dwell time.
• High-resolution sensing: Sub-Pa-level resolution (0.1 Pa) for leak detection and 0.0001 MPa resolution for burst threshold identification ensures detection of micro-leakage and precise rupture point determination.
• Modular pressure regulation: Selectable mechanical fine-tuning or closed-loop electric pressure control (optional), enabling repeatable setpoint accuracy across variable load conditions.
• Dual 10-inch industrial-grade LCD interfaces: Independent touchscreen operation per channel supports concurrent user interaction, real-time curve visualization, and local parameter adjustment without host PC dependency.
• Robust pneumatic architecture: Integrated 3×–5× booster pump with integrated filtration and moisture separation ensures stable, clean, and dry air supply (0.4–0.8 MPa input) meeting ISO 8573-1 Class 3:2:2 requirements for medical gas testing.
• Comprehensive I/O and communication suite: Six opto-isolated digital inputs and six relay outputs enable seamless integration with PLC-controlled test fixtures, safety interlocks, and automated line reporting systems; RS485 and RJ45 Ethernet support Modbus RTU/TCP and custom SCADA protocols.

Sample Compatibility & Compliance

The SHD3000Z accommodates a wide range of respiratory interface geometries—from 15 mm/22 mm conical connectors (ISO 5356-1) to custom-fitted silicone tubing assemblies and multi-port breathing circuits. Its configurable fixture adapters and pressure port sealing mechanisms ensure secure, low-dead-volume coupling without compromising measurement fidelity. All test sequences are fully traceable and audit-ready: timestamped raw data logs include environmental metadata (ambient T/RH), pressure transducer calibration IDs, operator credentials, and firmware revision tags—supporting GLP/GMP documentation requirements and FDA 21 CFR Part 11 electronic record compliance when paired with validated software modules.

Software & Data Management

The embedded test engine records all analog and digital signals at ≥100 Hz sampling rate, storing time-synchronized pressure, flow, and timing data in binary .bin format (exportable via dual USB 2.0 ports). Optional PC-based SUNS TestSuite v4.x provides advanced analysis tools—including derivative-based burst onset detection, exponential decay fitting for leakage classification (Type I/II per ISO 18562-2 Annex C), and customizable pass/fail logic trees. Data exports support CSV, PDF report generation (with company logo, test ID, and signature fields), and direct database ingestion via ODBC drivers compatible with LIMS platforms such as LabWare or Thermo Fisher SampleManager.

Applications

• Validation of breathing circuit integrity under simulated clinical pressure profiles (e.g., 0–40 cmH₂O cycling at 15 BPM).
• Burst strength verification of flexible respiratory hoses, nebulizer chambers, and CPAP mask seals per ISO 10993-1 biocompatibility testing prerequisites.
• Design verification of one-way valves, pressure relief mechanisms, and humidifier chamber welds under overpressure stress.
• Supplier qualification testing for ISO 13485-certified component manufacturers requiring documented repeatability (≤±0.5 % RSD across n=10 replicates).
• Root cause analysis of field failures involving premature disconnection or seal degradation during transport or sterilization cycles.

FAQ

What regulatory standards does the SHD3000Z directly support?
It aligns with test method foundations in ISO 18562-2 (particulate/metallic leachables—leak assessment), ISO 8536-4 (infusion sets), ASTM F1897 (respiratory device connection integrity), and IEC 60601-1 clause 8.8.3 (mechanical strength of gas pathways).
Can the system perform both positive and negative pressure cycling within a single test sequence?
Yes—the SHD3000Z supports bidirectional pressure modulation with independently programmable ramp rates, hold durations, and cycle counts for each polarity.
Is firmware validation documentation available for GMP environments?
Yes—SUNS provides IQ/OQ protocol templates, calibration certificates traceable to NIST standards, and full firmware source code versioning logs upon request for regulated users.
How is test repeatability ensured across multiple operators?
Through role-based access control (admin/operator modes), mandatory electronic signatures for test initiation, and automatic embedding of user ID, timestamp, and environmental sensor readings into every dataset.
Does the system require external PC hardware to execute standard tests?
No—all core test functions—including respiratory cycling, burst ramping, and pass/fail evaluation—are executable from the onboard dual-LCD interface without external computing resources.