Lucid BridgeDementia caregiver AI
Physician-led · Evidence-first · Pre-pilot

Moments of clarity. Bridges of connection.

A safety-moderated carevatar platform that extends family presence for people living with dementia, without pretending to be family. Built for the caregiver first.

5 to 10 minStructured, caregiver-controlled sessions
3 modelsOne talks, one guards, one watches
Every actionLogged and auditable
Evening routine · 8 min Caregiver approved · logged · ends on schedule
Illustration
Lucid Bridge
Warmth without impersonation.
Short, structured sessions the caregiver controls.
01 · The idea

The problem is not a shortage of love. It is a shortage of hours.

The hard moments rarely arrive during a planned visit. They arrive at two in the morning, mid-agitation, or in the fortieth repetition of a question that deserves as much patience as the first.

A carevatar is a caregiver's instrument for those hours: a familiar presence delivered through a simple video-call interface, speaking from memories and routines the caregiver has curated and approved.

It extends the family's presence. It does not replace it, and it does not pretend to.
The single design refusal: warmth without impersonation.
02 · Boundaries

Said plainly, before anyone asks

A tool for vulnerable people should announce its own limits more loudly than its features.


Lucid Bridge is

  • A caregiver-support tool: coaching, de-escalation scripts, routine scaffolding and burnout checks.
  • An optional patient experience with explicit consent, session by session.
  • A moderated system where every safety action is logged.
  • A source of observations a family can bring to their physician.

Lucid Bridge is not

  • A replacement caregiver, or a companion designed to be mistaken for a person.
  • A diagnostic engine, a medication advisor or an emergency service.
  • An always-on agent. Sessions expire without caregiver renewal.
  • An engagement machine. Attachment is a risk we monitor, not a metric we grow.
03 · How it's constrained

One model talks. A second one guards. A third one watches over time.

Dementia care cannot ride on a single model and a content filter. Creation, moderation and evaluation are separated so no single failure reaches the person on the screen.


The companion

Speaks only from caregiver-approved memories, scripts and routines, inside a session the caregiver started.

The safety moderator

Screens every exchange before and after generation, and can redirect, refuse or end a session.

The longitudinal evaluator

Watches patterns over time and surfaces observations for the caregiver and physician, never a diagnosis.

04 · Evidence

We would rather be measured than believed.


The dementia-companion market is full of engagement statistics and empty of clinical constraint. We are taking the slower road: an eight-week feasibility study, CARE-SAT, with twenty caregiver–patient dyads, pre-specified endpoints, and a definition of failure written down before the first session runs. Satisfaction, caregiver burden, mood, sleep, and agitation are measured with standard instruments; safety events are defined, logged, and reported whether or not the results flatter us.

The ethical framework we build against is published independently by the Institute for AI Ethics in Human Cognition, whose oversight standard, and whose insistence that responsibility stays with humans, precedes and outranks this product.

The study → CARE-SATThe ethics → the Institute
05 · Join us

The architecture is defined. The product is being built.

The architecture is specified, the safety policies are written, and the test scenarios exist as structured cases. What the project needs now is a small number of serious people.


Technical development

Juan Pablo Buritica leads technical development of the MVP, including backend implementation, model routing, safety evaluation, and the behavioral test infrastructure.

Read the developer brief →

For clinical & ethics advisors

Founding, unpaid, flexible. We need clinicians, bioethicists, and HCI researchers who know this terrain to tell us where the design is wrong, before the pilot runs, not after.

See what advising looks like →

For funders

Lucid Bridge is currently seeking external funding to support MVP development, hosting, CARE-SAT preparation, participant coordination, and independent evaluation.

Read the prospectus →
We are looking for caregivers, clinicians, researchers and funders who care more about constraint than hype.
Brian Harris, MD · Founder and Medical Director, EusomniaMD
Email [email protected]Developer briefProspectusPitch deck

Or simply write: [email protected]. The 14-slide Carevatar pitch deck is the fast tour.