Mida loetakse nüri nõela edukaks sisestamiseks?

Simply put, the blunt needle needs to "glide" into place along this established tunnel. To achieve this, each puncture requires an exact replica of the "several identical" strategies during tunnel establishment. This is a basis on which the buttonhole tunnel can be used for a long time.

The blunt needle seems to be "blunt". Although the damage to the tunnel tissue has been minimized as much as possible, if resistance is generated when the needle is inserted due to factors such as the angle, the operator does not examine this resistance. Because of the reason, rushing into the needle with a larger force, then this "blunt needle" may still cause damage to the tunnel and surrounding tissues.

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