Surgical Tooling as Optical Pointer for Sterile GUI Control

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Solution Overview

Problem

Current systems for interacting with computer interfaces during surgeries are error-prone and distracting, as surgeons must physically move their hands or heads to input data, potentially leading to negative surgical outcomes due to the need for non-sterile device interaction in a sterile environment.

Innovation Solution

A system that uses surgical tooling equipment as a pointer to control a graphical user interface via image sensors, allowing for motion-based object tracking and recognition, enabling surgeons to interact with the interface without leaving their field of view, by registering and tracking the equipment's movements to simulate mouse clicks and other interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If surgeons use traditional input devices (foot pedals, touch screens, keyboards) to interact with computer systems during surgery, then the computer system can receive user input, but the surgeon must physically move their hand and/or head from the patient to the interface, causing distraction and potential surgical errors

Engineering Contradiction:
Improveease of interface interactionVSAvoidsurgical accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces mechanical input devices (foot pedals, touch screens, keyboards) with an optical recognition system that detects the position and orientation of surgical tools through image processing. The system uses cameras and computer vision algorithms to track surgical tools and translate their spatial coordinates into interface interactions, eliminating the need for surgeons to physically move to input devices while maintaining accurate control.

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

2Adaptability or versatility

If surgeons use non-sterile devices (touch screens, keyboards) to input data during surgery, then the computer system can be controlled, but the surgeon leaves the sterile field, creating potential contamination risks and distraction

Engineering Contradiction:
Improveinterface control capabilityVSAvoidsterile field contamination
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary system consisting of image sensors, processing units, and software algorithms that mediate between the surgical tool and the computer interface. This intermediary translates the physical position and movements of sterile surgical tools into digital commands, allowing surgeons to control the interface without direct contact with non-sterile devices, thereby maintaining sterile field integrity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If surgeons physically move to computer interfaces to ensure correct input, then input accuracy can be verified, but this movement causes distraction and can lead to unforeseen surgical results

Engineering Contradiction:
Improveinput verification accuracyVSAvoidsurgical focus time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent enables continuous verification of input accuracy by maintaining real-time tracking of surgical tool position and orientation throughout the surgical procedure. The system continuously monitors tool coordinates, maps them to interface elements, and provides immediate feedback, eliminating the need for intermittent movements to verify input while maintaining constant surgical focus and precision.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP3797422B1System and method of utilizing surgical tooling equipment with graphical user interfaces
Publication Date: 2024.07.31 ALCON INC
  • EP3797422B1 patent drawingFigure 1A
  • EP3797422B1 patent drawingFigure 1B
  • EP3797422B1 patent drawingFigure 2

AI summary

The present disclosure provides a system that may display a graphical user interface (GUI) via a display; may receive first user input that indicates that surgical tooling equipment is to be utilized as a pointer associated with the GUI; may receive first multiple images from an image sensor; and may determine a digital model of the surgical tooling equipment, from the first multiple images, that includes a pattern of the surgical tooling equipment. The system may further train the digital model based at least on the first multiple images. The system may further receive second multiple images via the image sensor. The system may further determine, from the second multiple images and the digital model, a pattern of movement of the surgical tooling equipment that is utilizable to select of an icon of the GUI. The system may include a microscope integrated display that includes the display.