Every emergency clinician has experienced it: a patient arrives unconscious, with no identification, no family present, and no accessible medical history. Are they allergic to penicillin? Do they take warfarin? Do they have a pacemaker? These questions, unanswered, can cost minutes or lives.
The Insight
The problem isn't that this information doesn't exist — it's stored in GP records, hospital systems, and pharmacy databases. The problem is accessibility at the point of crisis. We asked: what if a patient's critical medical data was linked to something they always carry?
CarePass emerged from this question. The core concept: a wearable device (initially a QR-encoded bracelet, later expanded to NFC-enabled options) that emergency responders can scan to instantly retrieve a structured medical summary — allergies, current medications, chronic conditions, blood type, and emergency contacts.
Building the Architecture
As co-founder, I led the software architecture design and stakeholder engagement strategy. The technical stack was designed around three constraints: zero-latency access in offline environments, GDPR-compliant data storage, and a patient-controlled update mechanism.
- Encrypted QR / NFC link to a hosted patient profile
- Tiered data access: public-facing emergency summary vs. full record for verified clinicians
- Patient-facing mobile interface for updating records
- Integration pathway design for NHS-compatible systems
Stakeholder Strategy
I led engagement across three stakeholder groups: NHS emergency departments (as end users), patient advocacy groups (as adoption gatekeepers), and potential angel investors (as funding pathway). This shaped both the product roadmap and the go-to-market sequencing.
What We Built
We delivered a functional prototype demonstrating the core user flow: a paramedic scans the wearable, retrieves a structured medical summary in under three seconds, and can escalate to a full verified record with NHS credential authentication. I authored a technical development article documenting the build process and design rationale.