The invention belongs to the technical field of magnetic navigation puncture, and particularly relates to a magnetic navigation auxiliary puncture device which comprises a
needle holder, a groove allowing a needle body to move is formed in the top of the
needle holder, a resistance sensor is installed in the groove, two symmetrically-arranged
servo motors are fixedly installed in the
needle holder, and a magnetic navigation device is installed in the
servo motors. Two symmetrically arranged fixing plates are fixedly mounted in the needle holder; the needle holder and the magnetic navigation puncture
system are connected and matched for use through the magnetic positioning
chip. Under the condition that the magnetic navigation puncture
system obtains a B-ultrasonic image of a puncture part through a probe, a needle holder is used, a needle body is installed, a power supply is turned on, the magnetic navigation puncture
system is wirelessly connected, the magnetic navigation puncture system immediately starts to track the needle holder provided with a magnetic positioning
chip, and the B-ultrasonic image of the puncture part is acquired through real-time feedback on a computer screen. Therefore, the three-dimensional coordinates of the probe in the body can be accurately calculated, and a corresponding puncture safety area and a corresponding puncture
route can be given to carry out puncture operation.