Sustainable Healthcare by Design: How Our Model Maps to the UN SDGs

When people hear the word sustainability in healthcare, they often picture solar panels on a hospital roof. We mean something more basic. A health service is sustainable when it can keep running in the place it serves, at a cost that place can bear, without depending on infrastructure that is not there. By that definition, the way we screen for anaemia, diabetes risk, and heart problems in Barasat is sustainability in its most practical form, and it lines up closely with the goals the world has already agreed on.

Here is how the work maps to the UN Sustainable Development Goals.

Good health, brought closer (SDG 3)

The whole point is to catch preventable conditions early, before they turn into crises. More than half the women who come to our centre in Barasat are anaemic, and most have never been screened for heart risk or diabetes. A single painless finger test screens for anaemia, oxygen levels, diabetes risk, and heart rhythm in about two minutes, at the diagnostic centre or in a community camp. Earlier detection means earlier treatment, and earlier treatment is almost always cheaper and kinder than waiting for an emergency.

Built for women first (SDG 5)

Anaemia falls hardest on women, and the women it falls hardest on are the least likely to be tested. In our validation study, women were the majority of those screened, and just over half of them were anaemic. Making screening painless, needle-free, and available at the antenatal visit removes the specific barriers that keep women from being tested. Health access this targeted is gender equality made concrete.

Closing the gap, not just the average (SDG 10)

Standard pulse oximeters have a known history of reading less accurately on darker skin. We validated our screening across the full range of skin tones common in our community, including the darkest, and we report accuracy by skin-tone group instead of hiding it in a single number. We also work in a semi-urban district where cost and distance keep people away from labs, and we bring the test to them. Reducing inequality means making the tool work for the people standard tools have left out.

Innovation that needs no infrastructure (SDG 9)

The screening runs off an ordinary smartphone over a cable, drawing a tiny amount of power, with no battery and no mains supply. The device costs under $7 to build. That combination is what lets advanced screening sit at the edge of the health system rather than only in well-resourced hospitals. It is innovation measured by where it can reach, not by how complex it looks.

Less waste, less burden (SDG 12)

Because the device is battery-free, it does not generate a stream of disposable cells to be bought, charged, and thrown away. One low-power tool replaces several pieces of equipment in primary-care screening, which lowers the capital and maintenance burden on a small clinic. Doing more with less, and leaving less behind, is responsible production at the scale we operate.

Affordable enough to be real (SDG 1)

A full screen costs roughly the price of a bus ride. For the people we serve, cost has always been one of the first reasons to skip care, alongside the needle and the distance. Removing it is not a marketing line; it is the difference between a test that exists and a test that actually happens.

No one closes this gap alone (SDG 17)

We work through an accredited diagnostic centre, trained local operators, community camps, and partners who share the same goal. The model is deliberately built to be copyable in the next district, because the burden it addresses is far bigger than any one clinic. Partnership is not a footnote to the plan. It is the plan.

What sustainability really means here

A device that needs no power and no batteries. A screen that costs less than lunch. Operators drawn from the same community they serve. Evidence reported honestly, broken down by who it works for. Put together, that is a health service designed to keep running, to keep reaching the people who need it most, and to be handed to the next community without starting from scratch. That is the kind of lasting, equitable development the SDGs describe, and it is what we are trying to build, one screening at a time.

FAQ

What makes this approach sustainable? It runs on equipment that is already common (a smartphone), needs no mains power or batteries, costs very little per screen, and is run by trained people from the local community, so it can keep operating without outside infrastructure.

Which UN Sustainable Development Goals does the work support? Most directly SDG 3 (good health), alongside SDG 5 (gender equality), SDG 10 (reduced inequalities), SDG 9 (innovation and infrastructure), SDG 12 (responsible production), SDG 1 (no poverty), and SDG 17 (partnerships).

Is the screening a diagnosis? No. It flags people who should see a clinician and get confirmatory testing. Clinicians and lab tests diagnose; screening points the right people toward care.