Patient Digital Twin
One patient, one companion
A Patient Digital Twin is a digital companion built around one patient and one journey. It knows the operation ahead or the condition being lived with — the treatment plan, the medications, the appointments — because the care team gave it exactly that knowledge, and nothing else.
And it is a twin in the true sense: a living picture of the patient, refreshed as things happen. Each conversation, each completed questionnaire, each day of recovery updates it — so what it reflects is never last week's snapshot, but where the patient stands right now.
It talks with the patient in plain language, at the patient's pace. Its answers rest on information the care team has approved and stands behind. When a question goes beyond what it should handle, it says so honestly — and brings in the humans.
Two editions cover two kinds of journeys. The Surgery edition accompanies patients from the decision to operate through recovery at home. The Expert edition walks alongside people living with a chronic condition — visit after visit, year after year.
Before, during, and after
Before surgery, the companion explains what will happen and what to prepare, one step at a time. It asks the questions the team needs answered ahead of the operation, and it remembers the small things for the patient: nothing to eat after midnight, bring the medication list tomorrow.
At three in the morning, when a worry surfaces — is this swelling normal? — the companion is awake. It responds in plain words, with information the care team stands behind, not whatever the internet happens to say. And it can tell when a worry deserves more than an answer.
After discharge, it keeps checking in. How is the pain today? Did the exercises go well? A short daily conversation fills the silence between appointments — the patient feels accompanied, and the care team stays informed.
What care teams gain
For care teams, the companion turns scattered follow-up into one clear picture. Each patient's status is visible at a glance. Questionnaires and checklists are completed in conversation and flow into the record — no double entry, no chasing paper forms.
The companion watches quietly and speaks up only when it should. An answer that crosses a threshold, a check-in that never came: those reach a nurse. Everything else stays out of the way. The aim is simple — fewer phone calls to the ward, better-prepared patients, attention where it matters most.
Institutions can start small. The first step is a compliant electronic consent module that fits into existing routines from day one. From there, the companion is adapted on site to each ward — its questionnaires, its pathways, its way of speaking — in weeks, not years.
A hub that grows with you
The companion is built open. It can welcome information from the world around the patient — a wearable on the wrist, a blood-pressure cuff at home, a scale in the bathroom — whenever the care team decides those signals matter. Each new source makes the twin's picture of the patient a little more complete.
The same openness applies to what it can do. Consent today, questionnaires tomorrow, preparation programs, recovery coaching, reminders that arrive at the right moment — capabilities are added one by one, at the pace a ward or a study chooses. Think of it as a hub: one companion at the patient's side, and behind it, room for an endless set of features.
Openness never means a free-for-all. Every connector and every new capability enters the same way: reviewed with the care team, bounded by the same guardrails, traceable like everything else.
Built to be trusted
In medicine, a helpful answer is not enough. You have to be able to show where it came from. Every answer the companion gives can be traced back to the approved sources it drew on — what was asked, what was said, and why. Nothing is a black box.
Just as important is what the companion will not do. It works within guardrails your clinicians set: it draws only on approved knowledge, it does not diagnose and does not prescribe, and when a conversation reaches the edge of its role, it stops and brings in a human. What it may say — and what it must never say — remains a decision of the care team, always.
It was designed with clinicians and patients, not just for them. LLAAMA is a signatory of the European Virtual Human Twins Manifesto — we stand with the European movement bringing digital twins into healthcare. Hospital surgical teams already use it with their patients, and what they see in daily care shapes every release.
Underneath runs T2R2, our engine for traceable work with medical knowledge, proven in pharmaceutical research since 2020. The companion is built and maintained under a medical-grade quality system — because software that accompanies patients must be held to the standards of care itself.
