A multi-modal data construction-based visual laryngoscope difficult tracheal intubation auxiliary evaluation system and method

The video laryngoscope-assisted assessment system for difficult endotracheal intubation, constructed using multimodal data, combines structured clinical data and multi-position head and neck images. By utilizing multi-layer attention mechanisms and modality fusion weights, it addresses the limitations of existing assessment systems and achieves more accurate and safer prediction of endotracheal intubation risks.

CN122177499APending Publication Date: 2026-06-09XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI
Filing Date
2026-05-08
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing difficult airway assessment systems are not suitable for assessing difficult endotracheal intubation under video laryngoscopy, leading to serious clinical consequences of difficult endotracheal intubation.

Method used

A multimodal data-based auxiliary assessment system for difficult endotracheal intubation using video laryngoscopes was developed. Through a calculation unit and a result output unit, combined with structured clinical data and multi-position head and neck images, a computer program was used to calculate the probability value of difficult endotracheal intubation and to make predictions using a multi-layer attention mechanism and modal fusion weights.

Benefits of technology

This allows for a more comprehensive and objective analysis of potentially difficult endotracheal intubation without increasing invasive procedures, thereby reducing intubation failure rates and the risk of complications, and improving the safety and standardization of anesthesia procedures.

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Abstract

The application discloses a difficult tracheal intubation auxiliary evaluation system and method suitable for a visual laryngoscope based on multi-modal data construction, and belongs to the technical field of data processing systems. The auxiliary evaluation system is provided with a data main line; a calculation unit and a result output unit are sequentially connected on the data main line; the calculation unit stores a computer program; the computer program runs a calculation method of a difficult tracheal intubation probability value when executed by a processor; the value calculation method is obtained through formula I: formula I: wherein, x s structured clinical data of the evaluated person; f s structured clinical feature coding function; W is a weight matrix; b is a bias term; I g,v body position image data of the evaluated person; f θ image feature extraction function; α g,v image attention weight of different visual angles in the same body position group when g takes the same value and v takes different values; β g inter-group attention weight of the body position group g in the body position image data of the evaluated person; and lambda is a modal fusion weight parameter; σ Sigmoid function.
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