The Problem
Medical device software must meet IEC 62304 (software lifecycle) and demonstrate risk management per ISO 14971. Every dependency in your MQTT broker is a risk item that requires analysis, monitoring, and mitigation documentation. Brokers with 200+ dependencies create an unmanageable risk register.
How RelayQ Solves This
Minimal risk surface. Zero runtime dependencies means your risk analysis for the communication component is one page, not fifty.
Deterministic behaviour. Thread-per-client model with no async runtime means no unpredictable scheduling delays. Critical for patient monitoring where message latency matters.
Auditable codebase. 1,100+ protocol tests with full coverage of the MQTT 3.1.1 specification. Your IEC 62304 auditor can verify coverage in a single session.
Key Features for Medical
| Feature | Benefit |
|---|---|
| Zero dependencies | Minimal IEC 62304 risk items |
| Spec-traceable tests | Maps to verification & validation requirements |
| Deterministic latency | Predictable message delivery for monitoring |
| mTLS | Device authentication for patient data |
| Default-deny ACL | HIPAA-aligned access control |
| OOM protection | Graceful degradation, never crashes |
| < 50ms startup | Fast recovery after device power cycle |
Deployment
- Bedside gateway: 826KB binary on medical-grade ARM device
- Hospital infrastructure: Docker container with TLS + ACL
- Wearable hub: Embedded in OEM monitoring hardware
Next Steps
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