Field reliability improved from about 70% in the initial Gen 1 home device to about 96% by the final Gen 3 clinical study.
Medical devices
FlowSense Home / Lynx
Longitudinal home-use wearable for continuous hydrocephalus monitoring in daily life and sleep.
completed 2023–2025 WearablesHome monitoringThermal sensingClinical workflow
Type product
Skills Wearable sensing, Home-use workflow, Thermal visualization, Data organization
Selected facts
Quantitative details and source-backed proof points.
Clinical-study build lots were typically about 20 to 30 devices.
Build-cycle timeline improved from about 6 weeks in the Gen 1 period to about 3 weeks by the Gen 3 period.
Biohub deck metrics: 3 design generations, 100+ manufactured units, 200+ participants, and 2,800+ home-device wear hours.
Home platform integrated modular electronics/sensor/battery architecture, Qi charging, motion sensing, onboard memory, data encryption, and an IP55 target/claim.
Project summary
Why it exists, what I built, and what I learned.
Why I built it
I wanted to move FlowSense from in-clinic spot checks into a durable home-use wearable system.
What I built
Wearable device builds, data organization workflows, thermal visualization, charging and adhesive iteration, and home-use study support.
What worked
The system became useful because it translated patient and clinician feedback into better placement, charging, and data-quality decisions.
What failed
Home-use wearables expose edge cases around placement, motion, charging, and adhesion that are hard to see in the lab.
What I learned
Successful home monitoring depends as much on workflow and usability as it does on sensor performance.
Stack
Tools, systems, and technical areas involved.
Wearable sensingQi chargingThermal mapsPatient feedbackHome-use studySignal quality
Links and direction
Public links and next steps.
Keep simplifying the user workflow and expand the same sensing platform to adjacent use cases.
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Other projects in the same neighborhood.
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