Synthetic Physiological Biosignals & Medical Device Hardware-in-the-Loop

VitalSimulator delivers clinically authentic, mathematically verified synthetic physiological streams—empowering medical device manufacturers to stress-test firmware, train AI algorithms, and execute in silico regulatory trials without human risk.

VitalSimulator In Silico Simulation Architecture

Computational Physiology Engine and Hardware Signal Generator

Central System: Physiological Physics Engine - Multi-Compartment Human Model

Clinical IoMT Nodes

Lumped-Parameter Hemodynamic Core
3D Cellular Electrophysiology
Respiratory Mechanics Twin
Precision DAC Signal Injector
Target Medical Device Under Test

Architectural Layers & Regulatory Standards

Multi-Compartment Hemodynamic Modeling (Nonlinear ODE Solver / 21-Compartment Circulatory Twin): Numerical solution of Navier-Stokes and Windkessel differential equations simulating pressure drops across cardiac chambers and vascular beds.
Cellular Cardiac Electrophysiology (Bidomain Reaction-Diffusion Solver / GPU Finite Element Acceleration): Biophysical simulations of ion channel kinetics (ten Tusscher-Panfilov model) producing authentic 12-lead ECG surface potentials.
Synthetic Respiratory Dynamics (Two-Compartment Viscoelastic Lung Model / PaO2/PaCO2 Blood Gas Simulator): Simulation of airway resistance, lung compliance, alveolar gas exchange, and ventilator patient-asynchrony events.
Hardware-in-the-Loop (HIL) Physical Injection (24-Bit Precision DAC / High-CMRR Bio-Impedance Synthesizer): Converting computational waveforms into calibrated microvolt biopotentials and pneumatic pressure waves for physical device inputs.

Key Metrics: < 10 µV (ECG Voltage Resolution) | 100 kHz (Waveform Synthesis Rate) | ASME V&V 40 (Verification Standard) | Zero (Human Clinical Exposure Risk)

Replacing Animal Testing and Clinical Risk with High-Fidelity Physics

Testing life-critical medical devices against rare ventricular arrhythmias or pediatric respiratory distress in living patients is dangerous and ethically constrained. VitalSimulator provides deterministic digital twin physiology running in real time.

Core Engineering Areas

Mathematical Hemodynamic Modeling — Formulating lumped-parameter and distributed transmission models for systemic arterial networks.
HIL Testing for Defibrillators & Ventilators — Bridging the digital simulator with physical medical sensors via precision analog-to-digital hardware fixtures.
Synthetic Clinical Data under HIPAA & GDPR — Generating infinitely scalable clinical datasets free from Protected Health Information (PHI) constraints.

Technical Articles

Related Cluster Architecture Specifications

HealthVigilance — Zero-Trust IoMT Architecture, SaMD Risk Engineering & Autonomous Clinical Post-Market Vigilance
AgenticSaMD — Autonomous Agentic Software as a Medical Device, Multi-Agent Clinical Decision Support & FDA GMLP Guardrails
AITelemonitoring — Autonomous AI Telemonitoring, Virtual Nursing Assistants & Predictive Clinical Deterioration Scoring
BCI2IoMT — Brain-Computer Interface IoMT Gateways, Neural Decoding & Electrophysiological Streaming