The maxillary sinus puncture training model is a simulation teaching aid specifically designed for otolaryngology teaching and clinical training, mainly used to demonstrate and train the operation process of maxillary sinus puncture and drainage. This model is usually made to the scale of a human skull, with a clear position of the maxillary sinus. It is equipped with replaceable simulation tissues and sinus cavity structures inside, which can truly reproduce the anatomical environment and feel of puncture.

The operation norms are as follows

First of all, before training, it is necessary to check whether the model is complete and whether the sinus cavity and puncture channel are unobstructed. Operators must strictly adhere to the principle of aseptic operation, wear gloves and masks, and prepare puncture needles and related tools.

Secondly, when locating, the puncture point should be sought on the lateral wall of the nasal cavity of the model, usually at a position close to the midpoint of the lateral wall of the lower nasal passage. When inserting the needle, keep the needle tip pointing towards the line connecting the earlobe on the same side and the outer orbital Angle to avoid excessive deviation.

Secondly, during the process of inserting the needle, apply force evenly. Once you feel the sensation of the needle tip breaking through the sinus wall, stop moving forward immediately and moderately pull back to confirm the entry into the sinus cavity. Subsequently, simulated flushing or drainage operations can be carried out to complete the training process.

Finally, after the operation is completed, the model should be thoroughly cleaned, consumables replaced and properly stored to avoid prolonged exposure to moisture or direct sunlight.

By following the standard procedures, the maxillary sinus puncture training model can help trainees become familiar with anatomical landmarks and key points of operation, and improve their clinical practical skills.