NABS bathes non-ambulatory patients while continuously scanning the skin for pressure injury. A FLIR Lepton 3.5 captures radiometric thermography over eight supine bony prominences; a ResNet-50 stages findings on the Raspberry 5 at the bedside. The aim is detection at Stage I or deep tissue injury — before the wound is visible to the eye. Below is the current artifact set: simulators, console hardware, drawings, and the process model.
Live 160 × 120 radiometric field at the sensor's true 8.7 Hz, with regional perfusion and acral cooling modeled per anatomical region. Eight reticles track ΔT against contralateral or peri-site reference. Four scenarios: baseline, sacral DTI, calcaneal Stage 2, post-reposition recovery. Includes the ResNet-50 softmax, the knight's-tour sampling lattice, and Kafka topic counters.
Front panel assembly in three dimensions: 520 × 300 × 200 mm console on a rolling stand with bedrail clamp arm, fluid interface unit, and wash/dry umbilicals. Drag to orbit. Geometry is exportable, and both formats are published below.
Two sheets. General arrangement of the operator console, then front panel detail with the fluid circuit and electrical schematics — the plumbing and power side of the machine that the dashboards don't show.
Console detail drawer in the extended position, showing internal layout and service access.
The full pass — home, scan, wash, dry, re-scan, stage, act — driven by a data-defined phase spec rather than hard-coded control flow. Rendered in base R. The thermal field is synthetic and isolated in a single function, so a real co-registered Lepton frame drops in without touching the geometry or timeline.
Six synthetic thermal phantoms spanning ΔT −2 °C to +4 °C, with Warnock subdivision ROIs drawn over knight's-tour sampling coverage. Adaptive subdivision concentrates where thermal gradient is high and stays coarse where the field is flat — the training and validation substrate for the staging classifier.
Bedside view: heart rate, skin moisture against threshold, skin temperature, the thermal ROI with per-zone ΔT and staging, and the knight's-tour propagation model projected through tissue planes from epidermis to periosteum. Clinical event feed on a Kafka consumer.
