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ZAWADI
ZAWADI reader and single-use contact pad product system.

ZAWADI system

Sawazisha MedTech Labs · Kigali

ZAWADI™

Research-stage ZPP sensing for antenatal care — no blood draw, readout designed for under a minute.

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The problem

Haemoglobin is a late signal.

ZPP rises while iron stores are still falling — that is the prevention window ZAWADI is built to observe.

Prevention windowZPP rises firstHaemoglobin drops laterIron stores adequateIron-restricted erythropoiesisAnaemiaRelative signal
Conceptual illustration of biomarker sequence, not measured data. As iron becomes limiting, zinc substitutes for iron in the final step of haem synthesis, raising zinc protoporphyrin before haemoglobin falls below thresholds.

Late detection

Most pathways act only after haemoglobin has already dropped.

Costly workflows

Blood draws and lab loops limit repeat screening at the frontline.

Missed window

Earlier iron restriction is actionable — but rarely visible today.

How it works

Three steps at point of care.

Photoacoustic differential sensing — serious method, frontline-simple workflow.

01

Concept render of ZAWADI contact pad packaging for non-invasive measurement.
Concept illustration — research prototype. Not a clinical result.

Place

Seat the contact pad on skin. No lancet, no blood tube, no biohazard stream.

02

Concept render of exploded optical-acoustic stack for 407 and 425 nm sensing.
Concept illustration — research prototype. Not a clinical result.

Pulse

Fire paired 407 nm and 425 nm optical-acoustic pulses; difference isolates ZPP-related signal.

03

Concept render of ZAWADI research-prototype UI screen.
Concept illustration — research prototype. Not a clinical result.

Read

Surface a research-prototype ZPP-related estimate designed for under 60 seconds.

Product

Hardware built for the frontline.

Reader, wearable, and clinic kit — one sensing system with clear pairing.

Concept render of ZAWADI reader and pad system.
Concept illustration — research prototype. Not a clinical result.

Reusable · clinic-ready form

Reader

Handheld point-of-care engine.

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Concept render of ZAWADI wearable wristband research prototype.
Concept illustration — research prototype. Not a clinical result.

On-body · optical-acoustic

Wristband

Wearable for longitudinal monitoring.

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Concept render of ZAWADI kit flatlay with reader and pads.
Concept illustration — research prototype. Not a clinical result.

ANC / community deploy

Clinic kit

Reader, pads, field pairing.

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Full product systemImpact in antenatal care

Trust

Honest stage. Clear method.

Research prototype exploring earlier iron-deficiency insight — not cleared for clinical diagnosis.

Mode
Blood-free
Method
407 / 425 nm
Readout
≤ 60 seconds
Science & methodEvidence pathwayPublications

Development-stage notice: ZAWADI is under active validation. Not a diagnostic substitute. Regulatory status: Research and development programme — not submitted for regulatory clearance and not offered for clinical diagnosis or commercial use.

Partner with ZAWADI

Pilot, validate, or invest.

Clinical sites, NGOs, and investors — join the calibration and evidence sprint.

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