Optimizing Human-Machine Interface for Real-Time AI Support in the Operating Room: the CVS Copilot

This study employed a user-centered design (UCD) framework to determine how artificial intelligence (AI) should communicate Critical View of Safety (CVS) assessments during laparoscopic cholecystectomy. Researchers conducted semi-structured interviews with 17 surgeons—ranging from residents to professors—to evaluate preferences regarding interface design, timing of assistance, and interaction modalities. The study utilized reflexive thematic analysis to synthesize these perspectives into actionable design requirements, culminating in the development of the CVS Copilot interface.

Surgeons expressed a strong consensus for "zero-friction" integration. They rejected persistent visual overlays, haptic feedback, and intrusive audio alerts, fearing these would increase cognitive load and disrupt the surgical workflow. Instead, participants favored a system that acts as a silent, expert colleague, providing information only when explicitly requested or at critical decision points (e.g., before clipping the cystic duct).

There was a clear divergence based on seniority: while attending surgeons preferred extreme minimalism, residents expressed a desire for more educational, layered guidance. This led to the design of the CVS Copilot, which features a dual-mode interface: a minimal, corner-mounted status indicator for routine monitoring, and an optional, full-detail dashboard that provides anatomical segmentation and confidence metrics on demand.

As AI systems for surgical guidance move toward clinical implementation, the focus must shift from algorithmic accuracy to human-machine interaction. This research demonstrates that trust in surgical AI is not built through constant transparency or data-heavy displays, but through restraint and predictability. By aligning AI feedback with the surgeon’s need for control and situational awareness, developers can create tools that enhance safety without compromising the surgeon's autonomy or focus.