1 results about "Interface pressure" patented technology

The application discloses a medical instrument related pressure injury prediction and early warning method and system, relates to the technical field of medical care risk monitoring and early warning, and comprises the following steps: collecting an interface pressure field and determining a contact mask; extracting a contact edge point and calculating an internal normal vector pointing to the inside; constructing a pressure profile along the internal normal, calculating an effective contact width, and then obtaining a linear load amplification index; statistically analyzing the amplification index to generate an instantaneous risk score, and generating an early warning signal based on the score. The application quantifies the linear load amplification risk caused by the collapse of the effective contact width of the instrument edge, effectively overcomes the dilution effect of the regional average pressure on the local peak, and realizes the accurate positioning and early warning of the high-risk point of the pressure injury.