A patient agitation early warning monitoring system and device

By combining multimodal blood oxygenation monitoring technology with electrocardiogram signals, separating arterial and venous blood flow from static tissue components, extracting blood flow fluctuation characteristics, and generating agitation risk indicators, the technology solves the problems of lag and lack of continuity in patient agitation assessment in existing technologies, and achieves early and objective agitation risk warning.

CN122417431APending Publication Date: 2026-07-17QILU HOSPITAL(QINGDAO) CHEELOO COLLEGE OF MEDICINE SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QILU HOSPITAL(QINGDAO) CHEELOO COLLEGE OF MEDICINE SHANDONG UNIV
Filing Date
2026-06-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for assessing patient agitation rely on subjective scales, which leads to lag and lack of continuity. Monitoring techniques based on conventional physiological parameters cannot accurately analyze the dynamic characteristics of microcirculation perfusion that are closely related to agitation precursors, making it difficult to achieve early and objective risk warnings.

Method used

A multimodal calibration module is used to acquire multimodal blood supply and oxygenation time-series monitoring sequences. The monitoring and calibration are performed by combining standard blood oxygenation phantoms and electrocardiogram reference signals. The arterial and venous blood flow components are separated from the static tissue components by the unmixing correction module. The feature scoring module extracts blood flow fluctuation features. The fusion assessment module generates agitation risk indicators. The agitation degree index vector is generated by multimodal gating weighted fusion and outputs assessment and early warning.

Benefits of technology

It enables non-invasive, continuous, and highly specific patient agitation risk assessment, improves the sensitivity of identifying physiological changes that are precursors to agitation, provides early and objective risk warnings, and supports intelligent clinical monitoring.

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Abstract

本发明涉及临床监护技术领域,尤其涉及一种患者躁动预警监管系统及装置,该系统获取目标区域多模态血运血氧时序序列,利用标准血氧模体或心电参考信号完成定标,分离血流动态分量;结合组织光学参数与灌注先验,对序列执行动静脉及静态分量联合解混与运动伪影校正,还原净血运动态时序和血氧灌注映射;提取灌注节律连续性特征,修正灌注一致性以量化微循环异常程度,构建躁动风险敏感指标;通过多模态门控加权融合生成躁动程度指标向量,输入评估模型输出量化评分与预警结果。该方法有效克服运动干扰,精准捕捉微循环早期变化,实现了对患者躁动程度的无创、连续、客观监测与智能预警,显著提升临床监管的及时性与安全性。
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