Eye Tracking Augmented Reality Surgical Robot

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Solution Overview

Problem

Current surgical robotic systems lack effective integration of real-time image analysis and augmented reality to enhance the surgeon's visual feedback and decision-making during procedures, relying primarily on eye-tracking for command inputs and limited tactile feedback.

Innovation Solution

Incorporating an eye-tracker and computer vision/image processing algorithms to analyze real-time surgical images, providing augmented reality overlays and active assistance, such as alerts, information, and haptic feedback, to help the surgeon navigate and perform tasks more accurately and safely.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If eye tracking is used for command input control, then ease of operation is improved, but loss of information occurs as the surgeon cannot simultaneously monitor surgical images and control commands

Engineering Contradiction:
Improvecommand input controlVSAvoidvisual feedback
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent introduces an intermediary system that captures the surgeon's gaze direction and translates it into command inputs without requiring the surgeon to move their eyes from the surgical field. The eye tracking system acts as a mediator between the surgeon's visual attention and the control system, allowing command input while maintaining continuous visual monitoring of the surgical site.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces manual mechanical control input (hand movements to control devices) with an optical-based eye tracking system. This substitution allows the surgeon to issue commands through natural eye movements rather than physical manipulation of control devices, eliminating the need to shift attention from the surgical images to control interfaces.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If traditional control interfaces are used, then device complexity is reduced, but productivity decreases due to time spent switching between visual monitoring and command input

Engineering Contradiction:
Improvesurgical procedure efficiencyVSAvoidcontrol system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements a multi-functional control system that can operate through multiple input modalities: traditional manual control devices for complex or deliberate commands, and eye tracking for rapid, intuitive control. This universal control architecture allows the system to adapt to different surgical scenarios and surgeon preferences, improving productivity without oversimplifying the control capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system performs preliminary analysis of the surgeon's gaze patterns and anticipates intended commands before explicit input is given. By pre-processing visual attention data and predicting upcoming control actions, the system reduces latency and prepares command execution in advance, thereby improving surgical workflow efficiency without adding significant complexity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12042240B2Augmented reality using eye tracking in a robot assisted surgical system
Publication Date: 2024.07.23 ASENSUS SURGICAL ITALIA SRL
  • US12042240B2 patent drawing
  • US12042240B2 patent drawing
  • US12042240B2 patent drawing

AI summary

A system augments a surgical procedure by providing information to the user about regions of a surgical site the user is viewing on a displayed endoscopic image. The system uses an eye tracker to determine the region of the displayed image being viewed by the user, and applies computer vision to the image data to identify structures, conditions or disease states within the region. The system provides information to the user, generates alerts, or modifies operational settings for surgical devices based on the identified structures, conditions or disease states.