Percutaneous insertion of central catheter (PICC) puncture point skin image monitoring method and system
The PICC puncture point skin monitoring method, which utilizes adaptive polarization imaging and individual skin color baseline modeling, addresses the shortcomings of subjectivity and temporal tracking in existing PICC puncture point skin monitoring technologies. It enables early microerythema identification and individualized early warning, thereby improving monitoring accuracy and consistency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SICHUAN CANCER HOSPITAL
- Filing Date
- 2026-04-20
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, skin monitoring at the PICC puncture site relies on visual observation, which is highly subjective, cannot accurately quantify the size of erythema, and cannot achieve time-series tracking of inflammation progression and individualized risk warning, making it difficult to identify catheter-related bloodstream infections in the early stages.
Adaptive polarization imaging technology is used to eliminate specular reflection on the skin. Combined with individual skin color baseline modeling and adaptive segmentation algorithm, erythema is accurately segmented and quantified in multiple dimensions. An infection risk scoring model is constructed using multi-feature time series datasets for individualized early warning.
It achieves highly accurate, standardized, and quantitative monitoring of skin inflammation at the PICC puncture site, accurately identifies early microerythema, dynamically tracks the progression of inflammation, provides individualized graded early warning, improves monitoring accuracy and consistency, and supports clinical intervention decisions.
Smart Images

Figure CN122398199A_ABST