Body surface positioning and guiding device for lung puncture

The body surface positioning and guiding device comprises a positioning disc, a rotating disc, a T-shaped guider, a first locking mechanism, a second locking mechanism and a semicircular graduated scale, a first round hole is formed in the center of the positioning disc, a second round hole corresponding to the first round hole is formed in the center of the rotating disc, and the rotating disc is rotationally installed on the positioning disc; a strip-shaped groove with an upward notch is formed in the upper surface of the rotating disc, and the strip-shaped groove penetrates through the circle center of the second round hole; the T-shaped guider comprises a positioning shaft and a guiding hollow pipe, and the positioning shaft is rotatably arranged in the strip-shaped groove; a through hole with the axis perpendicular to the positioning shaft is formed in the middle of the positioning shaft, and a lower end opening of the guiding hollow pipe is inserted into the through hole. The first locking mechanism is