A body position detection alarm device for general anesthesia patients

By designing a self-testing tensioning element and a multi-layered detection element, the problems of easy wrinkling and suspension of flexible fabric pressure sensors are solved, realizing the accuracy and reliability of body position detection for patients under general anesthesia, and ensuring the precision and continuity of pressure data.

CN122172331APending Publication Date: 2026-06-09TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
Filing Date
2026-01-28
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing body position detection alarm devices, flexible fabric pressure distribution sensors are prone to wrinkles and partial suspension, which leads to distorted pressure distribution data and cannot automatically detect sensor malfunctions, affecting the accuracy and reliability of detection results.

Method used

The design employs a self-testing tensioning element and multi-layer detection elements. The motor drives the screw to rotate, which in turn moves the roller to perform self-testing, eliminating wrinkles and gaps. The multi-layer detection elements enable multi-level pressure detection, ensuring a tight fit between the sensor and the body position detection pad, increasing the contact area and pressure detection zone.

Benefits of technology

It improves the accuracy and reliability of body position detection, promptly detects sensor damage or abnormal sensitivity, eliminates detection blind spots, and ensures the accuracy and continuity of pressure data.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122172331A_ABST
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Abstract

This invention belongs to the technical field of body position detection devices and discloses a body position detection alarm device for patients under general anesthesia. It includes a support frame with a cloth pad on it, and a body position detection pad fixedly connected to the cloth pad. It also includes a self-detecting tensioning component located at the bottom of the support frame to improve the detection accuracy of the body position detection pad. The self-detecting tensioning component includes a motor fixedly connected to the bottom of the support frame. This invention uses a motor to drive a screw to rotate, causing a mouth-shaped sleeve and a roller to move. This allows for a rolling pressure self-check of the body position detection pad before use, promptly detecting damage or abnormal sensitivity and preventing detection failure. Simultaneously, as the mouth-shaped sleeve moves, the linked casters press down on the inclined plate, and the anti-dislodgement positioning component synchronously tensions the cloth pad and the body position detection pad, completely eliminating wrinkles and gaps, preventing displacement of the body position detection pad due to changes in body position, and improving the accuracy of body position detection for patients under general anesthesia.
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