The standardized operating procedures of the infant lumbar puncture model aim to provide safe and standardized puncture training for medical students, resident physicians and nursing staff, helping them master the techniques of infant lumbar puncture proficiently and reduce clinical operation risks. This model is designed based on the anatomical proportions of an infant's spine, including the lumbar vertebrae, spinal cord, dura mater and corresponding soft tissue structures. Some high-end models are also equipped with puncture indication feedback devices to indicate the depth and accuracy of the puncture.

Before operation, the model should first be inspected to ensure that the spinal markers are clear and the detachable components are stable. Prepare the necessary instruments for puncture, including sterilized items, puncture needles, hemostatic materials, etc., and keep the operating environment clean and tidy. Trainees should wear gloves and follow the principle of aseptic operation.

The operation steps are as follows: First, locate the puncture site. Generally, the L3-L4 or L4-L5 gap is selected. Touch the spinous process and mark the midline. The second is to disinfect the puncture area and apply a simulated lubricant on the surface of the model. Third, slowly insert the needle along the direction of the puncture needle, feel the change in puncture resistance, and confirm that it has entered the dural cavity. Fourth, simulate the extraction of cerebrospinal fluid or complete the puncture operation, and record the key points of the operation; The fifth step is to clean and restore the model surface to its original position after removing the needle.

Through standardized operation training, the infant lumbar puncture model can help learners master anatomical positioning, puncture techniques and precautions, improve the safety and accuracy of clinical operations, and lay a solid foundation for actual infant lumbar puncture operations.