Pressure sore prevention flexible guide cannula assembly suitable for prone position anesthesia

By designing a pressure-ulcer-resistant flexible guide cannula assembly suitable for prone anesthesia, using nylon fixing straps and a gear transmission system, the pressure ulcer problem caused by traditional cannula assemblies is solved, achieving patient comfort and cannula stability, and reducing nursing difficulty.

CN122230175APending Publication Date: 2026-06-19THE NAVAL MEDICAL UNIV OF PLA
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Patent Information

Application Number
CN202610594732.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-30
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Because different patients have different physiological curves of the head and neck, traditional rigid prone anesthesia cannula components require multiple fixation straps to be wrapped around the patient's head during fixation. This results in the hard contact surface pressing on the delicate skin for a long time, which can easily cause local skin blood circulation obstruction, insufficient tissue oxygen supply, increase the risk of pressure ulcers and increase the difficulty of nursing care.

Method used

A pressure-resistant flexible guide cannula assembly suitable for prone anesthesia was designed. It uses an elastic fixation strap made of nylon and a gear transmission system, which is fixed by Velcro. The fixation strap can rotate clockwise and counterclockwise to avoid prolonged pressure on the same area. Combined with an arc-shaped pad and a rubber pad, it can improve comfort and stability.

Benefits of technology

It effectively prevents pressure ulcers, improves patient comfort and nursing convenience, reduces nursing burden, and ensures the stability of intubation and patient safety.

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Abstract

The invention relates to the technical field of pressure sore prevention guide intubation tubes, in particular to a pressure sore prevention flexible guide intubation tube assembly suitable for prone position anesthesia, a positioning unit comprises a protection pad fixedly arranged on a connecting plate, a bite tube is fixedly arranged on the protection pad, and a connector is fixedly arranged at the tail end of a catheter. The protection pad arranged on the bite tube can be attached to the face of a patient, the situation that the bite tube excessively stretches into the oral cavity of the patient to cause body discomfort is avoided, meanwhile, the whole device is fixed through the fixing belts fixedly arranged on the rotating shaft, meanwhile, the two fixing belts are simply and conveniently fixed through the hook-and-loop fasteners, and after the fixing belts are connected, the bite tube is fixed through the hook-and-loop fasteners. One rotating shaft is controlled to rotate by rotating the rotating wheel clockwise, the rotating wheel can drive the fixing belt fixedly connected with the rotating wheel to rotate clockwise through the positioning plate to tighten the fixing belt wound on the peripheral face of the rotating wheel, and the other rotating shaft connected with the rotating wheel through the large gear can rotate anticlockwise to loosen the fixing belt connected with the rotating wheel.
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