The skin texture is natural, needle insertion marks are not visible. The shoulder is transparent on one side, so that the internal structure of nerves and blood vessels can be observed, which is convenient for positioning.
The correct injection point avoids accidental puncture of nerves and blood vessels, which makes learning the operation realistic. Traces on the surface of the body, such as the apex of the shoulder and other bones, are clearly visible, and the correct injection point can be determined by touch.
If the injection is in the wrong place or too deep, a red light will illuminate. If a nerve is punctured, the nerve light will illuminate and an electronic alarm will sound at the same time.
The green light will illuminate when the injection is done correctly. Subcutaneous and intramuscular injections can be practised in the shoulder and elbow of the model.
Fluid can be injected and poured out of the outlet tube.
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