The invention relates to the technical field of
amniotic fluid puncture examination, and particularly discloses a semi-automatic negative-pressure
amniotic fluid puncture device which comprises a B-ultrasonic probe and a puncture
assembly, and a locking
assembly is arranged on the B-ultrasonic probe; the locking
assembly comprises a transverse plate, a bottom plate is fixedly connected to the bottom of the transverse plate, a limiting seat is fixedly connected to the top of the bottom plate, a through hole is formed in the limiting seat, and locking rotary knobs are symmetrically installed on the two sides of the through hole; through the design of the locking assembly and the puncture assembly, during
amniotic fluid puncture inspection, after a puncture point is detected and determined by means of a B-mode
ultrasound probe, a through hole in the top of a bottom plate limiting seat is accurately aligned with the puncture point by moving the B-mode
ultrasound probe, clear and fixed path guidance is provided for puncture operation, and the positioning mode is combined with a subsequent
locking mechanism, so that the puncture accuracy is improved. Position deviation caused by external factors in the puncture process can be effectively avoided, it is ensured that the puncture needle accurately reaches the target position, and the risk of mistakenly
puncturing a
fetus or an
umbilical cord or a
placenta is greatly reduced.