CMH SCIENTIFIC · DEFERRA

Deferra

Decides when an AI system should assist, hold back, or say nothing during a procedure — and when the view is inadequate, repairs the observation before downstream guidance resumes.

Case loading. Deferra establishes operative context, watches the field, and stays silent unless the observation or course requires action.

INTERACTIVE OPERATIVE DEMO

laparoscopic cholecystectomy · live analysis00:00

Procedure recognized

Laparoscopic cholecystectomyObjective · gallbladder removal · establishing operative field

Case complete · ↓ Download surgical transcript and report

Local operative video is missing. This deployment is incomplete: field.mp4 must be present beside this page.

Without a gate · illustrative always-on assistantASSERT

Overlay stays active whether the view supports it or not.

With DeferraDEFER

No supported reason to interrupt.

What should happen now?

DEFER · no reason to interrupt

View and intervention-response relation are coherent.

Live scene analysis

ProcedureLaparoscopic cholecystectomyObjectiveGallbladder removalCurrent phaseDerotation / exposureField modelGallbladder field identified

Four questions Deferra checks

Can the system trust the view?Adequate

Has the course moved?Coherent

Has the response changed?No supported change

Is there enough evidence?Limited

Current route

DEFER

Visual support—Frame motion—Evidence observations1 / 4Overlay stateACTIVECamera angle0°

Measurement is adequate. No supported reason to interrupt.

Video provenance. This deployment uses a locally hosted, web-compressed excerpt adapted from Boer J, Boerma D & de Vries Reilingh TS (2011), A gallbladder torsion presenting as acute cholecystitis in an elderly woman, distributed via Wikimedia Commons under CC BY 2.0. Audio is removed. Scene-analysis overlays and phase events are synchronized to this demonstration case to show Deferra's operative-field, acquisition-repair and assistance-routing workflow. Source / license.