AR Surgical Instrument Position Prompting for Stable Recognition

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Solution Overview

Problem

Existing image processing systems face challenges in maintaining accurate positioning of surgical instruments due to dynamic changes in distance and lens distortion, affecting augmented reality navigation in surgeries.

Innovation Solution

A dynamic position recognition and prompt system comprising a recognition module, judgment module, and prompt module to ensure the surgical instrument remains within a preset recognition range, using augmented reality to display positional adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the recognized object is far away from the image obtaining device, then the field of view is expanded, but the number of feature points decreases and positioning accuracy deteriorates

Engineering Contradiction:

Improvefield of viewVSAvoidpositioning accuracy

Core Design Contradiction:

Area of stationary objectVSMeasurement precision

Solution Approach 1:

The system continuously monitors the distance between the surgical instrument and image obtaining device, and provides real-time feedback through AR prompts when the instrument moves out of the optimal recognition range, guiding the operator to adjust the position to maintain positioning accuracy

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts the recognition range parameters based on the current distance and orientation between the image obtaining device and surgical instrument, adapting the evaluation criteria for optimal recognition range according to the dynamic surgical scenario

Inventive Principle:

Principle #15Dynamics

2Measurement precision

If the recognized object is very close to the image obtaining device, then the positioning detail is improved, but lens distortion increases and positioning accuracy deteriorates

Engineering Contradiction:

Improvepositioning detailVSAvoidlens distortion

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The system pre-establishes an optimal recognition range that excludes the distorted near-field region, and proactively prevents the surgical instrument from entering this harmful zone through AR prompts before distortion significantly degrades positioning accuracy

Inventive Principle:

Principle #9Preliminary anti-action

3Adaptability or versatility

If the surgical instrument moves dynamically during surgery, then the operational flexibility is improved, but the positioning accuracy becomes unstable

Engineering Contradiction:

Improveoperational flexibilityVSAvoidpositioning accuracy stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system provides continuous real-time feedback through AR prompts, monitoring the surgical instrument's position and guiding operators to maintain it within the optimal recognition range, ensuring positioning accuracy stability despite dynamic movement

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system pre-defines the optimal recognition range parameters based on the specific surgical scenario and image obtaining device characteristics, establishing positioning standards before surgery begins to guide consistent accurate positioning throughout the procedure

Inventive Principle:

Principle #10Preliminary action

4Area of stationary object

If the recognition range is expanded to cover larger areas, then the operational range is improved, but the positioning precision deteriorates

Engineering Contradiction:

Improverecognition rangeVSAvoidpositioning precision

Core Design Contradiction:

Area of stationary objectVSMeasurement precision

Solution Approach 1:

The system defines different recognition range parameters for different spatial zones: a smaller optimal recognition range for high-precision positioning requirements, and a larger preset recognition range for general operational flexibility, applying appropriate precision standards to each zone

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12561831B2Dynamic position recognition and prompt system and method

Publication Date: 2026.02.24 JEDICARE MEDICAL CO LTD

AI summary

A dynamic position recognition and prompt method and system. The system comprises: a recognition module (1), a judgment module (2) and a prompt module (3); wherein the recognition module (1) is used to obtain a current scene image via an image obtaining device and recognize a current position of a specific object in the current scene image; the judgment module (2) is used to judge whether the current position of the specific object is within a preset recognition range; the prompt module (3) is used to performing navigation for the specific object if the current position of the specific object is not within the preset recognition range of the image obtaining device, to help a user in finding the specific object to be in the predetermined recognition range, so that the image and the navigation are more accurate and precise.