No-Touch Surgical Navigation via Optical Tracking
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Solution Overview
Problem
Conventional surgical navigation systems require redundant human touch, increasing procedural complexity, error risk, and decreasing accuracy and safety, especially when surgical instruments are replaced.
Innovation Solution
A no-touch surgical navigation method and system that uses preoperative implant device planning, image registration, instrument checking, and trajectory guiding, with optical tracking and displaying devices to guide surgical instruments without direct operator interaction, reducing redundant touch and enhancing precision and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional surgical navigation systems use touch screens for controlling surgical operations, then information selection and system control are achieved, but procedural complexity increases and error risk increases due to redundant human touch
Solution Approach 1:
The surgical navigation system automatically identifies surgical instruments using optical tracking technology and updates navigation images without requiring physician interaction. The system self-adjusts by detecting instrument positions and orientations, eliminating the need for manual touch screen operations and reducing procedural complexity.
Solution Approach 2:
The patent replaces mechanical touch screen interaction with optical field-based instrument identification. Optical trackers detect reflective markers on instruments to determine their spatial coordinates, substituting mechanical control with optical detection and automated image updating.
2Productivity
If conventional surgical navigation systems require alternative operation between surgical instruments and navigation system, then surgical procedures can be performed, but accuracy and safety decrease due to increased human error risk
Solution Approach 1:
The system maintains continuous automated updating of navigation images as surgical instruments are manipulated. The optical tracking system continuously monitors instrument positions and synchronizes image updates without interruption, eliminating gaps where human error could occur during alternative operations between instruments and navigation control.
3Loss of information
If conventional surgical navigation systems use touch screens for instrument control, then information selection is enabled, but failure risk increases due to redundant human touch
Solution Approach 1:
The system automatically selects and displays relevant surgical information based on detected instrument positions and orientations. The optical tracking system identifies which instrument is being used and retrieves corresponding preoperative imaging data and surgical parameters without requiring physician input, eliminating information selection errors from manual operation.
4Adaptability or versatility
If surgical instruments are replaced in conventional navigation systems, then different surgical functions can be performed, but accuracy and precision significantly decrease due to manual reconfiguration
Solution Approach 1:
When surgical instruments are replaced, the optical tracking system automatically detects the new instrument's reflective markers and recalculates its spatial coordinates. The system self-reconfigures by identifying the instrument type and adjusting navigation parameters without manual intervention, maintaining measurement precision throughout instrument replacements.
Solution Approach 2:
The patent replaces manual instrument reconfiguration with automated optical detection. The tracking system uses optical fields to detect instrument positions and orientations, automatically updating navigation images with precise coordinates without requiring manual measurement or system reconfiguration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method and system improve surgical precision and safety by minimizing operator error, reducing procedural complexity, and maintaining high accuracy even during instrument replacement, thus enhancing the efficiency and convenience of surgical procedures.
Implementation Method 1
an optical tracker and a processing unit. The surgical instrument moved by the user and connected to an instrument optical sensing device... The optical tracker is configured to sense the instrument optical sensing device... so as to identify the surgical instrument by the optical tracker and obtain a surgical instrument datum corresponding to the surgical instrument
Data Source
AI summary
A no-touch surgical navigation method for guiding a surgical instrument corresponding to a part of a patient's anatomy is provided. An image registration step is for matching the preoperative implant device planning image and the part of the patient's anatomy via a spatial coordinate transformation relationship. An instrument checking step is for identifying the surgical instrument, and then calibrating a size of the surgical instrument to display an instrument tip mark on the displaying device. An implant device placement selecting step is for moving the surgical instrument by a user, and then the instrument tip mark is synchronously moved with the surgical instrument to select a virtual surgical instrument pattern. A skin incision and trajectory guiding step is for moving the surgical instrument according to a skin incision and trajectory guiding picture so as to move the instrument tip mark close to a planned surgical position.