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The technology

From tumour biology to a measurable signal you can wear.

Breast Guardian rests on a chain of well-established biology: changes in a tumour's energy metabolism and blood supply alter the body-surface thermal field. Our device reads that field, and an AI model interprets it.

The principle behind it

Why a tumour leaves a thermal trace

Two well-documented pathways — plus immune and circadian effects — converge on a single observable: a change in the heat radiating from the body surface.

The Warburg Effect

Otto Warburg · Nobel Prize, 1931

Tumour cells favour glycolysis even in the presence of oxygen, producing lactic acid and localised heat.

Angiogenesis

Judah Folkman · angiogenesis pioneer

Tumours build their own blood supply, altering local blood-flow dynamics and the heat they carry.

Immune & circadian rhythm

Lymph-node activation · PER1/2

Immune-mediated heat and circadian rhythms further shape the body-surface thermal field over time.

Altered energy metabolismMore cellular heatAbnormal angiogenesisTumour “thermal field”

How the device reads the field

A sensor array, then an algorithm

01

Multi-factor sensors

A continuous temperature and humidity time-series, captured much like an ambulatory Holter monitor records the heart.

02

AI digital biomarker

A machine-learning model — trained against biopsy-correlated clinical data — distinguishes signal from noise.

03

Interpretable risk report

The output is a plain-language breast-health risk reading delivered through the companion app.

Built on 9 core invention patents, 11 software copyrights, and algorithm support from HKUST under ITF funding.

The Breast Guardian wearable sensing device
Front of the Breast Guardian deviceBack of the Breast Guardian device

The wearable

Wear and sleep, we do the rest

A pair of smart sensors, a battery compartment, an indicator light and a power switch — held gently in place by a custom bandage. The experience is non-invasive, painless, and radiation-free.

  • Continuous temperature & humidity sensing during a 6+ hour wear
  • Encrypted upload to a secure, compliant cloud database
  • A digital-biomarker model processes the signal
  • Elevated readings are flagged for clinical attention

Reading the report

Calm, plain-language results — never a bare number

The in-app report uses word-based tiers rather than an alarming “Level 1,” shows both sides side by side with a trend across readings, and always frames the result as something that complements — never replaces — screening.

Your result, in plain language

Your result, in plain language

A word-based tier such as “Steady,” with “all clear — keep going,” not a bare figure.

The data behind it

The data behind it

Both sides shown side by side, with a clear trend across your previous readings.

A higher reading, calmly

A higher reading, calmly

“A small difference to follow up” — next-step guidance, never panic.

Go deeper

Request the clinical evidence pack.

Sensitivity, specificity, PPV/NPV, dense-breast performance, study design and limitations — documentation available for review on request.